/** * rfc3195d.c * This is an RFC 3195 listener. All data received is forwarded to * local UNIX domain socket, where it can be picked up by a * syslog daemon (like rsyslogd ;)). * * \author Rainer Gerhards * * Copyright 2003-2005 Rainer Gerhards and Adiscon GmbH. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * * A copy of the GPL can be found in the file "COPYING" in this distribution. */ #include "config.h" #include #ifndef FEATURE_RFC3195 /* this is a trick: if RFC3195 is not to be supported, we just do an * error message. */ int main() { fprintf(stderr, "error: not compiled with FEATURE_RFC3195 - terminating.\n"); return(1); } #else #include #include #include #include #include "rsyslog.h" #include "liblogging.h" #include "srAPI.h" #include "syslogmessage.h" /* configurable params! */ static char* pPathLogname = "/dev/log3195"; static char *PidFile; static int NoFork = 0; static int Debug = 0; static int listenPort = 601; /* we use a global API object below, because this listener is * not very complex. As such, this hack should not harm anything. * rgerhards, 2005-10-12 */ static srAPIObj* pAPI; static int LogFile = -1; /* fd for log */ static int connected; /* have done connect */ static struct sockaddr SyslogAddr; /* AF_UNIX address of local logger */ /* small usage info */ static int usage() { /* The following usage line is what we intend to have - it * is commented out as a reminder. The one below is what we * currently actually do... fprintf(stderr, "usage: rfc3195d [-dv] [-i pidfile] [-n] [-p path]\n"); */ fprintf(stderr, "usage: rfc3195d [-dv] [-r port] [-p path]\n"); exit(1); } /* CLOSELOG -- close the system log */ static void closelog(void) { close(LogFile); LogFile = -1; connected = 0; } /* OPENLOG -- open system log */ static void openlog() { if (LogFile == -1) { SyslogAddr.sa_family = AF_UNIX; strncpy(SyslogAddr.sa_data, pPathLogname, sizeof(SyslogAddr.sa_data)); LogFile = socket(AF_UNIX, SOCK_DGRAM, 0); if(LogFile < 0) printf("error opening '%s': %s\n", pPathLogname, strerror(errno)); } if (LogFile != -1 && !connected && connect(LogFile, &SyslogAddr, sizeof(SyslogAddr.sa_family)+ strlen(SyslogAddr.sa_data)) != -1) connected = 1; else printf("error connecting '%s': %s\n", pPathLogname, strerror(errno)); } /* This method is called when a message has been fully received. * It passes the received message to the specified unix domain * socket. Please note that this callback is synchronous, thus * liblogging will be on hold until it returns. This is important * to note because in an error case we might stay in this code * for an extended amount of time. So far, we think this is the * best solution, but real-world experience might tell us a * different truth ;) * rgerhards 2005-10-12 */ void OnReceive(srAPIObj* pAPI, srSLMGObj* pSLMG) { unsigned char *pszRawMsg; int iRetries; /* number of retries connecting to log socket */ int iSleep; int iWriteOffset; ssize_t nToWrite; ssize_t nWritten; srSLMGGetRawMSG(pSLMG, &pszRawMsg); /* we need to loop writing the message. At least in * theory, a single write might not send all data to the * syslogd. So we need to continue until everything is written. * Also, we need to check if there are any socket erros, in * which case we reconect. We will re-try indefinitely, if this * is not acceptable, you need to change the code. * rgerhards 2005-10-12 */ iRetries = 0; nToWrite = strlen(pszRawMsg); iWriteOffset = 0; while(nToWrite != 0) { if(LogFile < 0 || !connected) openlog(); if(LogFile < 0 || !connected) { /* still not connected, retry */ if(iRetries > 0) { iSleep = (iRetries < 30) ? iRetries : 30; /* we sleep a little to prevent a thight loop */ if(Debug) printf("multiple retries connecting to log socket" " - doing sleep(%d)\n", iSleep); sleep(iSleep); } ++iRetries; } else { nWritten = write(LogFile, pszRawMsg, strlen(pszRawMsg)); if(nWritten < 0) { /* error, recover! */ printf("error writing to domain socket: %s\r\n", strerror(errno)); closelog(); } else { /* prepare for (potential) next write */ nToWrite -= nWritten; iWriteOffset += nWritten; } } } if(Debug) { static int largest = 0; int sz = strlen(pszRawMsg); if(sz > largest) largest = sz; printf("Msg(%d/%d):%s\n\n", largest, sz, pszRawMsg); } } /* As we are single-threaded in this example, we need * one way to shut down the listener running on this * single thread. We use SIG_INT to do so - it effectively * provides a short-lived second thread ;-) */ void doShutdown(int i) { printf("Shutting down rfc3195d. Be patient, this can take up to 30 seconds...\n"); srAPIShutdownListener(pAPI); } /* on the the real program ;) */ int main(int argc, char* argv[]) { srRetVal iRet; int ch; while ((ch = getopt(argc, argv, "di:np:r:v")) != EOF) switch((char)ch) { case 'd': /* debug */ Debug = 1; break; case 'i': /* pid file name */ PidFile = optarg; break; case 'n': /* don't fork */ NoFork = 1; break; case 'p': /* path to regular log socket */ pPathLogname = optarg; break; case 'r': /* listen port */ listenPort = atoi(optarg); if(listenPort < 1 || listenPort > 65535) { printf("Error: invalid listen port '%s', using 601 instead\n", optarg); listenPort = 601; } break; case 'v': printf("rfc3195d %s.%s (using liblogging version %d.%d.%d).\n", VERSION, PATCHLEVEL, LIBLOGGING_VERSION_MAJOR, LIBLOGGING_VERSION_MINOR, LIBLOGGING_VERSION_SUBMINOR); printf("See http://www.rsyslog.com for more information.\n"); exit(0); case '?': default: usage(); } if ((argc -= optind)) usage(); if(!Debug) signal(SIGINT, SIG_IGN); signal(SIGUSR1, doShutdown); signal(SIGTERM, doShutdown); if((pAPI = srAPIInitLib()) == NULL) { printf("Error initializing liblogging - aborting!\n"); exit(1); } if((iRet = srAPISetOption(pAPI, srOPTION_BEEP_LISTENPORT, listenPort)) != SR_RET_OK) { printf("Error %d setting listen port - aborting\n", iRet); exit(100); } if((iRet = srAPISetupListener(pAPI, OnReceive)) != SR_RET_OK) { printf("Error %d setting up listener - aborting\n", iRet); exit(101); } /* now move the listener to running state. Control will only * return after SIGUSR1. */ if((iRet = srAPIRunListener(pAPI)) != SR_RET_OK) { printf("Error %d running the listener - aborting\n", iRet); exit(102); } /** control will reach this point after shutdown */ srAPIExitLib(pAPI); return 0; } #endif /* #ifndef FEATURE_RFC3195 - main wrapper */ /* * vi:set ai: */ #n132'>132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621 1622 1623 1624 1625 1626 1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649 1650 1651 1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685 1686 1687 1688 1689 1690 1691 1692 1693 1694 1695 1696 1697 1698 1699 1700 1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1711 1712 1713 1714 1715 1716 1717 1718 1719 1720 1721 1722 1723 1724 1725 1726 1727 1728 1729 1730 1731 1732 1733 1734 1735 1736 1737 1738 1739 1740 1741 1742 1743 1744 1745 1746 1747 1748 1749 1750 1751 1752 1753 1754 1755 1756 1757 1758 1759 1760 1761 1762 1763 1764 1765 1766 1767 1768 1769 1770 1771 1772 1773 1774 1775 1776 1777 1778 1779 1780 1781 1782 1783 1784 1785 1786 1787 1788 1789 1790 1791 1792 1793 1794 1795 1796 1797 1798 1799 1800 1801 1802 1803 1804 1805 1806 1807 1808 1809 1810 1811 1812 1813 1814 1815 1816 1817 1818 1819 1820 1821 1822 1823 1824 1825 1826 1827 1828 1829 1830 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 1854 1855 1856 1857 1858 1859 1860 1861 1862 1863 1864 1865 1866 1867 1868 1869 1870 1871 1872 1873 1874 1875 1876 1877 1878 1879 1880 1881 1882 1883 1884 1885 1886 1887 1888 1889 1890 1891 1892 1893 1894 1895 1896 1897 1898 1899 1900 1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921 1922 1923 1924 1925 1926 1927 1928 1929 1930 1931 1932 1933 1934 1935 1936 1937 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 2046 2047 2048 2049 2050 2051 2052 2053 2054 2055 2056 2057 2058 2059 2060 2061 2062 2063 2064 2065 2066 2067 2068 2069 2070 2071 2072 2073 2074 2075 2076 2077 2078 2079 2080 2081 2082 2083 2084 2085 2086 2087 2088 2089 2090 2091 2092 2093 2094 2095 2096 2097 2098 2099 2100 2101 2102 2103 2104 2105 2106 2107 2108 2109 2110 2111 2112 2113 2114 2115 2116 2117 2118 2119 2120 2121 2122 2123 2124 2125 2126 2127 2128 2129 2130 2131 2132 2133 2134 2135 2136 2137 2138 2139 2140 2141 2142 2143 2144 2145 2146 2147 2148 2149 2150 2151 2152 2153 2154 2155 2156 2157 2158 2159 2160 2161 2162 2163 2164 2165 2166 2167 2168 2169 2170 2171 2172 2173 2174 2175 2176 2177 2178 2179 2180 2181 2182 2183 2184 2185 2186 2187 2188 2189 2190 2191 2192 2193 2194 2195 2196 2197 2198 2199 2200 2201 2202 2203 2204 2205 2206 2207 2208 2209 2210 2211 2212 2213 2214 2215 2216 2217 2218 2219 2220 2221 2222 2223 2224 2225 2226 2227 2228 2229 2230 2231 2232 2233 2234 2235 2236 2237 2238 2239 2240 2241 2242 2243 2244 2245 2246 2247 2248 2249 2250 2251 2252 2253 2254 2255 2256 2257 2258 2259 2260 2261 2262 2263 2264 2265 2266 2267 2268 2269 2270 2271 2272 2273 2274 2275 2276 2277 2278 2279 2280 2281 2282 2283 2284 2285 2286 2287 2288 2289 2290 2291 2292 2293 2294 2295 2296 2297 2298 2299 2300 2301 2302 2303 2304 2305 2306 2307 2308 2309 2310 2311 2312 2313 2314 2315 2316 2317 2318 2319 2320 2321 2322 2323 2324 2325 2326 2327 2328 2329 2330 2331 2332 2333 2334 2335 2336 2337 2338 2339 2340 2341 2342 2343 2344 2345 2346 2347 2348 2349 2350 2351 2352 2353 2354 2355 2356 2357 2358 2359 2360 2361 2362 2363 2364 2365 2366 2367 2368 2369 2370 2371 2372 2373 2374 2375 2376 2377 2378 2379 2380 2381 2382 2383 2384 2385 2386 2387 2388 2389 2390 2391 2392 2393 2394 2395 2396 2397 2398 2399 2400 2401 2402 2403 2404 2405 2406 2407 2408 2409 2410 2411 2412 2413 2414 2415 2416 2417 2418 2419 2420 2421 2422 2423 2424 2425 2426 2427 2428 2429 2430 2431 2432 2433 2434 2435 2436 2437 2438 2439 2440 2441 2442 2443 2444 2445 2446 2447 2448 2449 2450 2451 2452 2453 2454 2455 2456 2457 2458 2459 2460 2461 2462 2463 2464 2465 2466 2467 2468 2469 2470 2471 2472 2473 2474 2475 2476 2477 2478 2479 2480 2481 2482 2483 2484 2485 2486 2487 2488 2489 2490 2491 2492 2493 2494 2495 2496 2497 2498 2499 2500 2501 2502 2503 2504 2505 2506 2507 2508 2509 2510 2511 2512 2513 2514 2515 2516 2517 2518 2519 2520 2521 2522 2523 2524 2525 2526 2527 2528 2529 2530 2531 2532 2533 2534 2535 2536 2537 2538 2539 2540 2541 2542 2543 2544 2545 2546 2547 2548 2549 2550 2551 2552 2553 2554 2555 2556 2557 2558 2559 2560 2561 2562 2563 2564 2565 2566 2567 2568 2569 2570 2571 2572 2573 2574 2575 2576 2577 2578 2579 2580 2581 2582 2583 2584 2585 2586 2587 2588 2589 2590 2591 2592 2593 2594 2595 2596 2597 2598 2599 2600 2601 2602 2603 2604 2605 2606 2607 2608 2609 2610 2611 2612 2613 2614 2615 2616 2617 2618 2619 2620 2621 2622 2623 2624 2625 2626 2627 2628 2629 2630 2631 2632 2633 2634 2635 2636 2637 2638 2639 2640 2641 2642 2643 2644 2645 2646 2647 2648 2649 2650 2651 2652 2653 2654 2655 2656 2657 2658 2659 2660 2661 2662 2663 2664 2665 2666 2667 2668 2669 2670 2671 2672 2673 2674 2675 2676 2677 2678 2679 2680 2681 2682 2683 2684 2685 2686 2687 2688 2689 2690 2691 2692 2693 2694 2695 2696 2697 2698 2699 2700 2701 2702 2703 2704 2705 2706 2707 2708 2709 2710 2711 2712 2713 2714 2715 2716 2717 2718 2719 2720 2721 2722 2723 2724 2725 2726 2727 2728 2729 2730 2731 2732 2733 2734 2735 2736 2737 2738 2739 2740 2741 2742 2743 2744 2745 2746 2747 2748 2749 2750 2751 2752 2753 2754 2755 2756 2757 2758 2759 2760 2761 2762 2763 2764 2765 2766 2767 2768 2769 2770 2771 2772 2773 2774 2775 2776 2777 2778 2779 2780 2781 2782 2783 2784 2785 2786 2787 2788 2789 2790 2791 2792 2793 2794 2795 2796 2797 2798 2799 2800 2801 2802 2803 2804 2805 2806 2807 2808 2809 2810 2811 2812 2813 2814 2815 2816 2817 2818 2819 2820 2821 2822 2823 2824 2825 2826 2827 2828 2829 2830 2831 2832 2833 2834 2835 2836 2837 2838 2839 2840 2841 2842 2843 2844 2845 2846 2847 2848 2849 2850 2851 2852 2853 2854 2855 2856 2857 2858 2859 2860 2861 2862 2863 2864 2865 2866 2867 2868 2869 2870 2871 2872 2873 2874 2875 2876 2877 2878 2879 2880 2881 2882 2883 2884 2885 2886 2887 2888 2889 2890 2891 2892 2893 2894 2895 2896 2897 2898 2899 2900 2901 2902 2903 2904 2905 2906 2907 2908 2909 2910 2911 2912 2913 2914 2915 2916 2917 2918 2919 2920 2921 2922 2923 2924 2925 2926 2927 2928 2929 2930 2931 2932 2933 2934 2935 2936 2937 2938 2939 2940 2941 2942 2943 2944 2945 2946 2947 2948 2949 2950 2951 2952 2953 2954 2955 2956 2957 2958 2959 2960 2961 2962 2963 2964 2965 2966 2967 2968 2969 2970 2971 2972 2973 2974 2975 2976 2977 2978 2979 2980 2981 2982 2983 2984 2985 2986 2987 2988 2989 2990 2991 2992 2993 2994 2995 2996 2997 2998 2999 3000 3001 3002 3003 3004 3005 3006 3007 3008 3009 3010 3011 3012 3013 3014 3015 3016 3017 3018 3019 3020 3021 3022 3023 3024 3025 3026 3027 3028 3029 3030 3031 3032 3033 3034 3035 3036 3037 3038 3039 3040 3041 3042 3043 3044 3045 3046 3047 3048 3049 3050 3051 3052 3053 3054 3055 3056 3057 3058 3059 3060 3061 3062 3063 3064 3065 3066 3067 3068 3069 3070 3071 3072 3073 3074 3075 3076 3077 3078 3079 3080 3081 3082 3083 3084 3085 3086 3087 3088 3089 3090 3091 3092 3093 3094 3095 3096 3097 3098 3099 3100 3101 3102 3103 3104 3105 3106 3107 3108 3109 3110 3111 3112 3113 3114 3115 3116 3117 3118 3119 3120 3121 3122 3123 3124 3125 3126 3127 3128 3129 3130 3131 3132 3133 3134 3135 3136 3137 3138 3139 3140 3141 3142 3143 3144 3145 3146 3147 3148 3149 3150 3151 3152 3153 3154 3155 3156 3157 3158 3159 3160 3161 3162 3163 3164 3165 3166 3167 3168 3169 3170 3171 3172 3173 3174 3175 3176 3177 3178 3179 3180 3181 3182 3183 3184 3185 3186 3187 3188 3189 3190 3191 3192 3193 3194 3195 3196 3197 3198 3199 3200 3201 3202 3203 3204 3205 3206 3207 3208 3209 3210 3211 3212 3213 3214 3215 3216 3217 3218 3219 3220 3221 3222 3223 3224 3225 3226 3227 3228 3229 3230 3231 3232 3233 3234 3235 3236 3237 3238 3239 3240 3241 3242 3243 3244 3245 3246 3247 3248 3249 3250 3251 3252 3253 3254 3255 3256 3257 3258 3259 3260 3261 3262 3263 3264 3265 3266 3267 3268 3269 3270 3271 3272 3273 3274 3275 3276 3277 3278 3279 3280 3281 3282 3283 3284 3285 3286 3287 3288 3289 3290 3291 3292 3293 3294 3295 3296 3297 3298 3299 3300 3301 3302 3303 3304 3305 3306 3307 3308 3309 3310 3311 3312 3313 3314 3315 3316 3317 3318 3319 3320 3321 3322 3323 3324 3325 3326 3327 3328 3329 3330 3331 3332 3333 3334 3335 3336 3337 3338 3339 3340 3341 3342 3343 3344 3345 3346 3347 3348 3349 3350 3351 3352 3353 3354 3355 3356 3357 3358 3359 3360 3361 3362 3363 3364 3365 3366 3367 3368 3369 3370 3371 3372 3373 3374 3375 3376 3377 3378 3379 3380 3381 3382 3383 3384 3385 3386 3387 3388 3389 3390 3391 3392 3393 3394 3395 3396 3397 3398 3399 3400 3401 3402 3403 3404 3405 3406 3407 3408 3409 3410 3411 3412 3413 3414 3415 3416 3417 3418 3419 3420 3421 3422 3423 3424 3425 3426 3427 3428 3429 3430 3431 3432 3433 3434 3435 3436 3437 3438 3439 3440 3441 3442 3443 3444 3445 3446 3447 3448 3449 3450 3451 3452 3453 3454 3455 3456 3457 3458 3459 3460 3461 3462 3463 3464 3465 3466 3467 3468 3469 3470 3471 3472 3473 3474 3475 3476 3477 3478 3479 3480 3481 3482 3483 3484 3485 3486 3487 3488 3489 3490 3491 3492 3493 3494 3495 3496 3497 3498 3499 3500 3501 3502 3503 3504 3505 3506 3507 3508 3509 3510 3511 3512 3513 3514 3515 3516 3517 3518 3519 3520 3521 3522 3523 3524 3525 3526 3527 3528 3529 3530 3531 3532 3533 3534 3535 3536 3537 3538 3539 3540 3541 3542 3543 3544 3545 3546 3547 3548 3549 3550 3551 3552 3553 3554 3555 3556 3557 3558 3559 3560 3561 3562 3563 3564 3565 3566 3567 3568 3569 3570 3571 3572 3573 3574 3575 3576 3577 3578 3579 3580 3581 3582 3583 3584 3585 3586 3587 3588 3589 3590 3591 3592 3593 3594 3595 3596 3597 3598 3599 3600 3601 3602 3603 3604 3605 3606 3607 3608 3609 3610 3611 3612 3613 3614 3615 3616 3617 3618 3619 3620 3621 3622 3623 3624 3625 3626 3627 3628 3629 3630 3631 3632 3633 3634 3635 3636 3637 3638 3639 3640 3641 3642 3643 3644 3645 3646 3647 3648 3649 3650 3651 3652 3653 3654 3655 3656 3657 3658 3659 3660 3661 3662 3663 3664 3665 3666 3667 3668 3669 3670 3671 3672 3673 3674 3675 3676 3677 3678 3679 3680 3681 3682 3683 3684 3685 3686 3687 3688 3689 3690 3691 3692 3693 3694 3695 3696 3697 3698 3699 3700 3701 3702 3703 3704 3705 3706 3707 3708 3709 3710 3711 3712 3713 3714 3715 3716 3717 3718 3719 3720 3721 3722 3723 3724 3725 3726 3727 3728 3729 3730 3731 3732 3733 3734 3735 3736 3737 3738 3739 3740 3741 3742 3743 3744 3745 3746 3747 3748 3749 3750 3751 3752 3753 3754 3755 3756 3757 3758 3759 3760 3761 3762 3763 3764 3765 3766 3767 3768 3769 3770 3771 3772 3773 3774 3775 3776 3777 3778 3779 3780 3781 3782 3783 3784 3785 3786 3787 3788 3789 3790 3791 3792 3793 3794 3795 3796 3797 3798 3799 3800 3801 3802 3803 3804 3805 3806 3807 3808 3809 3810 3811 3812 3813 3814 3815 3816 3817 3818 3819 3820 3821 3822 3823 3824 3825 3826 3827 3828 3829 3830 3831 3832 3833 3834 3835 3836 3837 3838 3839 3840 3841 3842 3843 3844 3845 3846 3847 3848 3849 3850 3851 3852 3853 3854 3855 3856 3857 3858 3859 3860 3861 3862 3863 3864 3865 3866 3867 3868 3869 3870 3871 3872 3873 3874 3875 3876 3877 3878 3879 3880 3881 3882 3883 3884 3885 3886 3887 3888 3889 3890 3891 3892 3893 3894 3895 3896 3897 3898 3899 3900 3901 3902 3903 3904 3905 3906 3907 3908 3909 3910 3911 3912 3913 3914 3915 3916 3917 3918 3919 3920 3921 3922 3923 3924 3925 3926 3927 3928 3929 3930 3931 3932 3933 3934 3935 3936 3937 3938 3939 3940 3941 3942 3943 3944 3945 3946 3947 3948 3949 3950 3951 3952 3953 3954 3955 3956 3957 3958 3959 3960 3961 3962 3963 3964 3965 3966 3967 3968 3969 3970 3971 3972 3973 3974 3975 3976 3977 3978 3979 3980 3981 3982 3983 3984 3985 3986 3987 3988 3989 3990 3991 3992 3993 3994 3995 3996 3997 3998 3999 4000 4001 4002 4003 4004 4005 4006 4007 4008 4009 4010 4011 4012 4013 4014 4015 4016 4017 4018 4019 4020 4021 4022 4023 4024 4025 4026 4027 4028 4029 4030 4031 4032 4033 4034 4035 4036 4037 4038 4039 4040 4041 4042 4043 4044 4045 4046 4047 4048 4049 4050 4051 4052 4053 4054 4055 4056 4057 4058 4059 4060 4061 4062 4063 4064 4065 4066 4067 4068 4069 4070 4071 4072 4073 4074 4075 4076 4077 4078 4079 4080 4081 4082 4083 4084 4085 4086 4087 4088 4089 4090 4091 4092 4093 4094 4095 4096 4097 4098 4099 4100 4101 4102 4103 4104 4105 4106 4107 4108 4109 4110 4111 4112 4113 4114 4115 4116 4117 4118 4119 4120 4121 4122 4123 4124 4125 4126 4127 4128 4129 4130 4131 4132 4133 4134 4135 4136 4137 4138 4139 4140 4141 4142 4143 4144 4145 4146 4147 4148 4149 4150 4151 4152 4153 4154 4155 4156 4157 4158 4159 4160 4161 4162 4163 4164 4165 4166 4167 4168 4169 4170 4171 4172 4173 4174 4175 4176 4177 4178 4179 4180 4181 4182 4183 4184 4185 4186 4187 4188 4189 4190 4191 4192 4193 4194 4195 4196 4197 4198 4199 4200 4201 4202 4203 4204 4205 4206 4207 4208 4209 4210 4211 4212 4213 4214 4215 4216 4217 4218 4219 4220 4221 4222 4223 4224 4225 4226 4227 4228 4229 4230 4231 4232 4233 4234 4235 4236 4237 4238 4239 4240 4241 4242 4243 4244 4245 4246 4247 4248 4249 4250 4251 4252 4253 4254 4255 4256 4257 4258 4259 4260 4261 4262 4263 4264 4265 4266 4267 4268 4269 4270 4271 4272 4273 4274 4275 4276 4277 4278 4279 4280 4281 4282 4283 4284 4285 4286 4287 4288 4289 4290 4291 4292 4293 4294 4295 4296 4297 4298 4299 4300 4301 4302 4303 4304 4305 4306 4307 4308 4309 4310 4311 4312 4313 4314 4315 4316 4317 4318 4319 4320 4321 4322 4323 4324 4325 4326 4327 4328 4329 4330 4331 4332 4333 4334 4335 4336 4337 4338 4339 4340 4341 4342 4343 4344 4345 4346 4347 4348 4349 4350 4351 4352 4353 4354 4355 4356 4357 4358 4359 4360 4361 4362 4363 4364 4365 4366 4367 4368 4369 4370 4371 4372 4373 4374 4375 4376 4377 4378 4379 4380 4381 4382 4383 4384 4385 4386 4387 4388 4389 4390 4391 4392 4393 4394 4395 4396 4397 4398 4399 4400 4401 4402 4403 4404 4405 4406 4407 4408 4409 4410 4411 4412 4413 4414 4415 4416 4417 4418 4419 4420 4421 4422 4423 4424 4425 4426 4427 4428 4429 4430 4431 4432 4433 4434 4435 4436 4437 4438 4439 4440 4441 4442 4443 4444 4445 4446 4447 4448 4449 4450 4451 4452 4453 4454 4455 4456 4457 4458 4459 4460 4461 4462 4463 4464 4465 4466 4467 4468 4469 4470 4471 4472 4473 4474 4475 4476 4477 4478 4479 4480 4481 4482 4483 4484 4485 4486 4487 4488 4489 4490 4491 4492 4493 4494 4495 4496 4497 4498 4499 4500 4501 4502 4503 4504 4505 4506 4507 4508 4509 4510 4511 4512 4513 4514 4515 4516 4517 4518 4519 4520 4521 4522 4523 4524 4525 4526 4527 4528 4529 4530 4531 4532 4533 4534 4535 4536 4537 4538 4539 4540 4541 4542 4543 4544 4545 4546 4547 4548 4549 4550 4551 4552 4553 4554 4555 4556 4557 4558 4559 4560 4561 4562 4563 4564 4565 4566 4567 4568 4569 4570 4571 4572 4573 4574 4575 4576 4577 4578 4579 4580 4581 4582 4583 4584 4585 4586 4587 4588 4589 4590 4591 4592 4593 4594 4595 4596 4597 4598 4599 4600 4601 4602 4603 4604 4605 4606 4607 4608 4609 4610 4611 4612 4613 4614 4615 4616 4617 4618 4619 4620 4621 4622 4623 4624 4625 4626 4627 4628 4629 4630 4631 4632 4633 4634 4635 4636 4637 4638 4639 4640 4641 4642 4643 4644 4645 4646 4647 4648 4649 4650 4651 4652 4653 4654 4655 4656 4657 4658 4659 4660 4661 4662 4663 4664 4665 4666 4667 4668 4669 4670 4671 4672 4673 4674 4675 4676 4677 4678 4679 4680 4681 4682 4683 4684 4685 4686 4687 4688 4689 4690 4691 4692 4693 4694 4695 4696 4697 4698 4699 4700 4701 4702 4703 4704 4705 4706 4707 4708 4709 4710 4711 4712 4713 4714 4715 4716 4717 4718 4719 4720 4721 4722 4723 4724 4725 4726 4727 4728 4729 4730 4731 4732 4733 4734 4735 4736 4737 4738 4739 4740 4741 4742 4743 4744 4745 4746 4747 4748 4749 4750 4751 4752 4753 4754 4755 4756 4757 4758 4759 4760 4761 4762 4763 4764 4765 4766 4767 4768 4769 4770 4771 4772 4773 4774 4775 4776 4777 4778 4779 4780 4781 4782 4783 4784 4785 4786 4787 4788 4789 4790 4791 4792 4793 4794 4795 4796 4797 4798 4799 4800 4801 4802 4803 4804 4805 4806 4807 4808 4809 4810 4811 4812 4813 4814 4815 4816 4817 4818 4819 4820 4821 4822 4823 4824 4825 4826 4827 4828 4829 4830 4831 4832 4833 4834 4835 4836 4837 4838 4839 4840 4841 4842 4843 4844 4845 4846 4847 4848 4849 4850 4851 4852 4853 4854 4855 4856 4857 4858 4859 4860 4861 4862 4863 4864 4865 4866 4867 4868 4869 4870 4871 4872 4873 4874 4875 4876 4877 4878 4879 4880 4881 4882 4883 4884 4885 4886 4887 4888 4889 4890 4891 4892 4893 4894 4895 4896 4897 4898 4899 4900 4901 4902 4903 4904 4905 4906 4907 4908 4909 4910 4911 4912 4913 4914 4915 4916 4917 4918 4919 4920 4921 4922 4923 4924 4925 4926 4927 4928 4929 4930 4931 4932 4933 4934 4935 4936 4937 4938 4939 4940 4941 4942 4943 4944 4945 4946 4947 4948 4949 4950 4951 4952 4953 4954 4955 4956 4957 4958 4959 4960 4961 4962 4963 4964 4965 4966 4967 4968 4969 4970 4971 4972 4973 4974 4975 4976 4977 4978 4979 4980 4981 4982 4983 4984 4985 4986 4987 4988 4989 4990 4991 4992 4993 4994 4995 4996 4997 4998 4999 5000 5001 5002 5003 5004 5005 5006 5007 5008 5009 5010 5011 5012 5013 5014 5015 5016 5017 5018 5019 5020 5021 5022 5023 5024 5025 5026 5027 5028 5029 5030 5031 5032 5033 5034 5035 5036 5037 5038 5039 5040 5041 5042 5043 5044 5045 5046 5047 5048 5049 5050 5051 5052 5053 5054 5055 5056 5057 5058 5059 5060 5061 5062 5063 5064 5065 5066 5067 5068 5069 5070 5071 5072 5073 5074 5075 5076 5077 5078 5079 5080 5081 5082 5083 5084 5085 5086 5087 5088 5089 5090 5091 5092 5093 5094 5095 5096 5097 5098 5099 5100 5101 5102 5103 5104 5105 5106 5107 5108 5109 5110 5111 5112 5113 5114 5115 5116 5117 5118 5119 5120 5121 5122 5123 5124 5125 5126 5127 5128 5129 5130 5131 5132 5133 5134 5135 5136 5137 5138 5139 5140 5141 5142 5143 5144 5145 5146 5147 5148 5149 5150 5151 5152 5153 5154 5155 5156 5157 5158 5159 5160 5161 5162 5163 5164 5165 5166 5167 5168 5169 5170 5171 5172 5173 5174 5175 5176 5177 5178 5179 5180 5181 5182 5183 5184 5185 5186 5187 5188 5189 5190 5191 5192 5193 5194 5195 5196 5197 5198 5199 5200 5201 5202 5203 5204 5205 5206 5207 5208 5209 5210 5211 5212 5213 5214 5215 5216 5217 5218 5219 5220 5221 5222 5223 5224 5225 5226 5227 5228 5229 5230 5231 5232 5233 5234 5235 5236 5237 5238 5239 5240 5241 5242 5243 5244 5245 5246 5247 5248 5249 5250 5251 5252 5253 5254 5255 5256 5257 5258 5259 5260 5261 5262 5263 5264 5265 5266 5267 5268 5269 5270 5271 5272 5273 5274 5275 5276 5277 5278 5279 5280 5281 5282 5283 5284 5285 5286 5287 5288 5289 5290 5291 5292 5293 5294 5295 5296 5297 5298 5299 5300 5301 5302 5303 5304 5305 5306 5307 5308 5309 5310 5311 5312 5313 5314 5315 5316 5317 5318 5319 5320 5321 5322 5323 5324 5325 5326 5327 5328 5329 5330 5331 5332 5333 5334 5335 5336 5337 5338 5339 5340 5341 5342 5343 5344 5345 5346 5347 5348 5349 5350 5351 5352 5353 5354 5355 5356 5357 5358 5359 5360 5361 5362 5363 5364 5365 5366 5367 5368 5369 5370 5371 5372 5373 5374 5375 5376 5377 5378 5379 5380 5381 5382 5383 5384 5385 5386 5387 5388 5389 5390 5391 5392 5393 5394 5395 5396 5397 5398 5399 5400 5401 5402 5403 5404 5405 5406 5407 5408 5409 5410 5411 5412 5413 5414 5415 5416 5417 5418 5419 5420 5421 5422 5423 5424 5425 5426 5427 5428 5429 5430 5431 5432 5433 5434 5435 5436 5437 5438 5439 5440 5441 5442 5443 5444 5445 5446 5447 5448 5449 5450 5451 5452 5453 5454 5455 5456 5457 5458 5459 5460 5461 5462 5463 5464 5465 5466 5467 5468 5469 5470 5471 5472 5473 5474 5475 5476 5477 5478 5479 5480 5481 5482 5483 5484 5485 5486 5487 5488 5489 5490 5491 5492 5493 5494 5495 5496 5497 5498 5499 5500 5501 5502 5503 5504 5505 5506 5507 5508 5509 5510 5511 5512 5513 5514 5515 5516 5517 5518 5519 5520 5521 5522 5523 5524 5525 5526 5527 5528 5529 5530 5531 5532 5533 5534 5535 5536 5537 5538 5539 5540 5541 5542 5543 5544 5545 5546 5547 5548 5549 5550 5551 5552 5553 5554 5555 5556 5557 5558 5559 5560 5561 5562 5563 5564 5565 5566 5567 5568 5569 5570 5571 5572 5573 5574 5575 5576 5577 5578 5579 5580 5581 5582 5583 5584 5585 5586 5587 5588 5589 5590 5591 5592 5593 5594 5595 5596 5597 5598 5599 5600 5601 5602 5603 5604 5605 5606 5607 5608 5609 5610 5611 5612 5613 5614 5615 5616 5617 5618 5619 5620 5621 5622 5623 5624 5625 5626 5627 5628 5629 5630 5631 5632 5633 5634 5635 5636 5637 5638 5639 5640 5641 5642 5643 5644 5645 5646 5647 5648 5649 5650 5651 5652 5653 5654 5655 5656 5657 5658 5659 5660 5661 5662 5663 5664 5665 5666 5667 5668 5669 5670 5671 5672 5673 5674 5675 5676 5677 5678 5679 5680 5681 5682 5683 5684 5685 5686 5687 5688 5689 5690 5691 5692 5693 5694 5695 5696 5697 5698 5699 5700 5701 5702 5703 5704 5705 5706 5707 5708 5709 5710 5711 5712 5713 5714 5715 5716 5717 5718 5719 5720 5721 5722 5723 5724 5725 5726 5727 5728 5729 5730 5731 5732 5733 5734 5735 5736 5737 5738 5739 5740 5741 5742 5743 5744 5745 5746 5747 5748 5749 5750 5751 5752 5753 5754 5755 5756 5757 5758 5759 5760 5761 5762 5763 5764 5765 5766 5767 5768 5769 5770 5771 5772 5773 5774 5775 5776 5777 5778 5779 5780 5781 5782 5783 5784 5785 5786 5787 5788 5789 5790 5791 5792 5793 5794 5795 5796 5797 5798 5799 5800 5801 5802 5803 5804 5805 5806 5807 5808 5809 5810 5811 5812 5813 5814 5815 5816 5817 5818 5819 5820 5821 5822 5823 5824 5825 5826 5827 5828 5829 5830 5831 5832 5833 5834 5835 5836 5837 5838 5839 5840 5841 5842 5843 5844 5845 5846 5847 5848 5849 5850 5851 5852 5853 5854 5855 5856 5857 5858 5859 5860 5861 5862 5863 5864 5865 5866 5867 5868 5869 5870 5871 5872 5873 5874 5875 5876 5877 5878 5879 5880 5881 5882 5883 5884 5885 5886 5887 5888 5889 5890 5891 5892 5893 5894 5895 5896 5897 5898 5899 5900 5901 5902 5903 5904 5905 5906 5907 5908 5909 5910 5911 5912 5913 5914 5915 5916 5917 5918 5919 5920 5921 5922 5923 5924 5925 5926 5927 5928 5929 5930 5931 5932 5933 5934 5935 5936 5937 5938 5939 5940 5941 5942 5943 5944 5945 5946 5947 5948 5949 5950 5951 5952 5953 5954 5955 5956 5957 5958 5959 5960 5961 5962 5963 5964 5965 5966 5967 5968 5969 5970 5971 5972 5973 5974 5975 5976 5977 5978 5979 5980 5981 5982 5983 5984 5985 5986 5987 5988 5989 5990 5991 5992 5993 5994 5995 5996 5997 5998 5999 6000 6001 6002 6003 6004 6005 6006 6007 6008 6009 6010 6011 6012 6013 6014 6015 6016 6017 6018 6019 6020 6021 6022 6023 6024 6025 6026 6027 6028 6029 6030 6031 6032 6033 6034 6035 6036 6037 6038 6039 6040 6041 6042 6043 6044 6045 6046 6047 6048 6049 6050 6051 6052 6053 6054 6055 6056 6057 6058 6059 6060 6061 6062 6063 6064 6065 6066 6067 6068 6069 6070 6071 6072 6073 6074 6075 6076 6077 6078 6079 6080 6081 6082 6083 6084 6085 6086 6087 6088 6089 6090 6091 6092 6093 6094 6095 6096 6097 6098 6099 6100 6101 6102 6103 6104 6105 6106 6107 6108 6109 6110 6111 6112 6113 6114 6115 6116 6117 6118 6119 6120 6121 6122 6123 6124 6125 6126 6127 6128 6129 6130 6131 6132 6133 6134 6135 6136 6137 6138 6139 6140 6141 6142 6143 6144 6145 6146 6147 6148 6149 6150 6151 6152 6153 6154 6155 6156 6157 6158 6159 6160 6161 6162 6163 6164 6165 6166 6167 6168 6169 6170 6171 6172 6173 6174 
/**
 * \brief This is the main file of the rsyslogd daemon.
 *
 * Please visit the rsyslog project at
 *
 * http://www.rsyslog.com
 *
 * to learn more about it and discuss any questions you may have.
 *
 * Please note that as of now, a lot of the code in this file stems
 * from the sysklogd project. To learn more over this project, please
 * visit
 *
 * http://www.infodrom.org/projects/sysklogd/
 *
 * I would like to express my thanks to the developers of the sysklogd
 * package - without it, I would have had a much harder start...
 *
 * Please note that I made quite some changes to the orignal package.
 * I expect to do even more changes - up
 * to a full rewrite - to meet my design goals, which among others
 * contain a (at least) dual-thread design with a memory buffer for
 * storing received bursts of data. This is also the reason why I 
 * kind of "forked" a completely new branch of the package. My intension
 * is to do many changes and only this initial release will look
 * similar to sysklogd (well, one never knows...).
 *
 * As I have made a lot of modifications, please assume that all bugs
 * in this package are mine and not those of the sysklogd team.
 *
 * As of this writing, there already exist heavy
 * modifications to the orginal sysklogd package. I suggest to no
 * longer rely too much on code knowledge you eventually have with
 * sysklogd - rgerhards 2005-07-05
 * The code is now almost completely different. Be careful!
 * rgerhards, 2006-11-30
 * 
 * I have decided to put my code under the GPL. The sysklog package
 * is distributed under the BSD license. As such, this package here
 * currently comes with two licenses. Both are given below. As it is
 * probably hard for you to see what was part of the sysklogd package
 * and what is part of my code, I suggest that you visit the 
 * sysklogd site on the URL above if you would like to base your
 * development on a version that is not under the GPL.
 *
 * This Project was intiated and is maintained by
 * Rainer Gerhards <rgerhards@hq.adiscon.com>. See
 * AUTHORS to learn who helped make it become a reality.
 *
 * If you have questions about rsyslogd in general, please email
 * info@adiscon.com. To learn more about rsyslogd, please visit
 * http://www.rsyslog.com.
 *
 * \author Rainer Gerhards <rgerhards@adiscon.com>
 * \date 2003-10-17
 *       Some initial modifications on the sysklogd package to support
 *       liblogging. These have actually not yet been merged to the
 *       source you see currently (but they hopefully will)
 *
 * \date 2004-10-28
 *       Restarted the modifications of sysklogd. This time, we
 *       focus on a simpler approach first. The initial goal is to
 *       provide MySQL database support (so that syslogd can log
 *       to the database).
 *
 * rsyslog - An Enhanced syslogd Replacement.
 * Copyright 2003-2007 Rainer Gerhards and Adiscon GmbH.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 * A copy of the GPL can be found in the file "COPYING" in this distribution.
 */
#include "config.h"
#include "rsyslog.h"

#ifdef __FreeBSD__
#define	BSD
#endif

/* change the following setting to e.g. 32768 if you would like to
 * support large message sizes for IHE (32k is the current maximum
 * needed for IHE). I was initially tempted to increase it to 32k,
 * but there is a large memory footprint with the current
 * implementation in rsyslog. This will change as the processing
 * changes, but I have re-set it to 1k, because the vast majority
 * of messages is below that and the memory savings is huge, at
 * least compared to the overall memory footprint.
 *
 * If you intend to receive Windows Event Log data (e.g. via
 * EventReporter - www.eventreporter.com), you might want to 
 * increase this number to an even higher value, as event
 * log messages can be very lengthy.
 * rgerhards, 2005-07-05
 *
 * during my recent testing, it showed that 4k seems to be
 * the typical maximum for UDP based syslog. This is a IP stack
 * restriction. Not always ... but very often. If you go beyond
 * that value, be sure to test that rsyslogd actually does what
 * you think it should do ;) Also, it is a good idea to check the
 * doc set for anything on IHE - it most probably has information on
 * message sizes.
 * rgerhards, 2005-08-05
 * 
 * I have increased the default message size to 2048 to be in sync
 * with recent IETF syslog standardization efforts.
 * rgerhards, 2006-11-30
 *
 * I have removed syslogdPanic(). That function was supposed to be used
 * for logging in low-memory conditons. Ever since it was introduced, it
 * was a wrapper for dprintf(). A more intelligent choice was hard to
 * find. After all, if we are short on memory, doing anything fance will
 * again cause memory problems. I have now modified the code so that
 * those elements for which we do not get memory are simply discarded.
 * That might be a single property like the TAG, but it might also be
 * a complete message. The overall goal of this code change is to keep
 * rsyslogd up and running, while we sacrifice some messages to reach
 * that goal. It also keeps the code cleaner. A real out of memory
 * condition is highly unlikely. If it happens, there will probably be
 * much more trouble on the system in question. Anyhow - rsyslogd will
 * most probably be able to survive it and carry on with processing
 * once the situation has been resolved.
 */
#define DEFUPRI		(LOG_USER|LOG_NOTICE)
#define DEFSPRI		(LOG_KERN|LOG_CRIT)
#define TIMERINTVL	30		/* interval for checking flush, mark */

#define CONT_LINE	1		/* Allow continuation lines */

#ifdef MTRACE
#include <mcheck.h>
#endif
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <stddef.h>
#include <ctype.h>
#define GNU_SOURCE
#include <string.h>
#include <stdarg.h>
#include <time.h>

#include <sys/syslog.h>
#include <sys/param.h>
#ifdef	__sun
#include <errno.h>
#else
#include <sys/errno.h>
#endif
#include <sys/ioctl.h>
#include <sys/wait.h>
#include <sys/socket.h>
#include <sys/file.h>
#include <sys/un.h>
#include <sys/time.h>
#ifdef BSD
# include <sys/timespec.h>
#endif
#include <sys/resource.h>
#include <signal.h>

#include <netinet/in.h>
#include <netdb.h>
#include <fnmatch.h>
#include <dirent.h>

#ifndef __sun
#endif
#include <arpa/nameser.h>
#include <arpa/inet.h>
#include <resolv.h>
#include "pidfile.h"

#include <assert.h>

#ifdef USE_PTHREADS
#include <pthread.h>
#endif

#if	HAVE_PATHS_H
#include <paths.h>
#endif


/* handle some defines missing on more than one platform */
#ifndef SUN_LEN
#define SUN_LEN(su) \
   (sizeof(*(su)) - sizeof((su)->sun_path) + strlen((su)->sun_path))
#endif

#include "srUtils.h"
#include "stringbuf.h"
#include "syslogd-types.h"
#include "template.h"
#include "outchannel.h"
#include "syslogd.h"
#include "net.h" /* struct NetAddr */

#include "parse.h"
#include "msg.h"
#include "modules.h"
#include "action.h"
#include "tcpsyslog.h"
#include "iminternal.h"
#include "cfsysline.h"
#include "omshell.h"
#include "omusrmsg.h"
#include "ommysql.h"
#include "omfwd.h"
#include "omfile.h"
#include "omdiscard.h"

/* We define our own set of syslog defintions so that we
 * do not need to rely on (possibly different) implementations.
 * 2007-07-19 rgerhards
 */
/* missing definitions for solaris
 * 2006-02-16 Rger
 */
#ifdef __sun
#	define LOG_AUTHPRIV LOG_AUTH
#endif
#define	LOG_MAKEPRI(fac, pri)	(((fac) << 3) | (pri))
#define	LOG_PRI(p)	((p) & LOG_PRIMASK)
#define	LOG_FAC(p)	(((p) & LOG_FACMASK) >> 3)
#define INTERNAL_NOPRI  0x10    /* the "no priority" priority */
#define LOG_FTP         (11<<3) /* ftp daemon */
#define INTERNAL_MARK   LOG_MAKEPRI((LOG_NFACILITIES<<3), 0)

syslogCODE rs_prioritynames[] =
  {
    { "alert", LOG_ALERT },
    { "crit", LOG_CRIT },
    { "debug", LOG_DEBUG },
    { "emerg", LOG_EMERG },
    { "err", LOG_ERR },
    { "error", LOG_ERR },               /* DEPRECATED */
    { "info", LOG_INFO },
    { "none", INTERNAL_NOPRI },         /* INTERNAL */
    { "notice", LOG_NOTICE },
    { "panic", LOG_EMERG },             /* DEPRECATED */
    { "warn", LOG_WARNING },            /* DEPRECATED */
    { "warning", LOG_WARNING },
    { NULL, -1 }
  };

syslogCODE rs_facilitynames[] =
  {
    { "auth", LOG_AUTH },
    { "authpriv", LOG_AUTHPRIV },
    { "cron", LOG_CRON },
    { "daemon", LOG_DAEMON },
    { "ftp", LOG_FTP },
    { "kern", LOG_KERN },
    { "lpr", LOG_LPR },
    { "mail", LOG_MAIL },
    { "mark", INTERNAL_MARK },          /* INTERNAL */
    { "news", LOG_NEWS },
    { "security", LOG_AUTH },           /* DEPRECATED */
    { "syslog", LOG_SYSLOG },
    { "user", LOG_USER },
    { "uucp", LOG_UUCP },
    { "local0", LOG_LOCAL0 },
    { "local1", LOG_LOCAL1 },
    { "local2", LOG_LOCAL2 },
    { "local3", LOG_LOCAL3 },
    { "local4", LOG_LOCAL4 },
    { "local5", LOG_LOCAL5 },
    { "local6", LOG_LOCAL6 },
    { "local7", LOG_LOCAL7 },
    { NULL, -1 }
  };


#ifndef UTMP_FILE
#ifdef UTMP_FILENAME
#define UTMP_FILE UTMP_FILENAME
#else
#ifdef _PATH_UTMP
#define UTMP_FILE _PATH_UTMP
#else
#define UTMP_FILE "/etc/utmp"
#endif
#endif
#endif

#ifndef _PATH_LOGCONF 
#define _PATH_LOGCONF	"/etc/rsyslog.conf"
#endif

#if defined(SYSLOGD_PIDNAME)
#undef _PATH_LOGPID
#if defined(FSSTND)
#ifdef BSD
#define _PATH_VARRUN "/var/run/"
#endif
#ifdef __sun
#define _PATH_VARRUN "/var/run/"
#endif
#define _PATH_LOGPID _PATH_VARRUN SYSLOGD_PIDNAME
#else
#define _PATH_LOGPID "/etc/" SYSLOGD_PIDNAME
#endif
#else
#ifndef _PATH_LOGPID
#if defined(FSSTND)
#define _PATH_LOGPID _PATH_VARRUN "rsyslogd.pid"
#else
#define _PATH_LOGPID "/etc/rsyslogd.pid"
#endif
#endif
#endif

#ifndef _PATH_DEV
#define _PATH_DEV	"/dev/"
#endif

#ifndef _PATH_CONSOLE
#define _PATH_CONSOLE	"/dev/console"
#endif

#ifndef _PATH_TTY
#define _PATH_TTY	"/dev/tty"
#endif

#ifndef _PATH_LOG
#ifdef BSD
#define _PATH_LOG	"/var/run/log"
#else
#define _PATH_LOG	"/dev/log"
#endif
#endif


/* IPv6 compatibility layer for older platforms
 * We need to handle a few things different if we are running
 * on an older platform which does not support all the glory
 * of IPv6. We try to limit toll on features and reliability,
 * but obviously it is better to run rsyslog on a platform that
 * supports everything...
 * rgerhards, 2007-06-22
 */
#ifndef AI_NUMERICSERV
#  define AI_NUMERICSERV 0
#endif


static uchar	*ConfFile = (uchar*) _PATH_LOGCONF; /* read-only after startup */
static char	*PidFile = _PATH_LOGPID; /* read-only after startup */
char	ctty[] = _PATH_CONSOLE;	/* this is read-only */

int bModMySQLLoaded = 0; /* was a $ModLoad MySQL done? */
static pid_t myPid;	/* our pid for use in self-generated messages, e.g. on startup */
/* mypid is read-only after the initial fork() */
static int debugging_on = 0; /* read-only, except on sig USR1 */
static int restart = 0; /* do restart (config read) - multithread safe */

static int bRequestDoMark = 0; /* do mark processing? (multithread safe) */
#define MAXFUNIX	20

int glblHadMemShortage = 0; /* indicates if we had memory shortage some time during the run */
int startIndexUxLocalSockets = 0; /* process funix from that index on (used to 
 				   * suppress local logging. rgerhards 2005-08-01
				   * read-only after startup
				   */
int funixParseHost[MAXFUNIX] = { 0, }; /* should parser parse host name?  read-only after startup */
char *funixn[MAXFUNIX] = { _PATH_LOG }; /* read-only after startup */
int funix[MAXFUNIX] = { -1, }; /* read-only after startup */

#define INTERNAL_NOPRI	0x10	/* the "no priority" priority */
#define TABLE_NOPRI	0	/* Value to indicate no priority in f_pmask */
#define TABLE_ALLPRI    0xFF    /* Value to indicate all priorities in f_pmask */
#define	LOG_MARK	LOG_MAKEPRI(LOG_NFACILITIES, 0)	/* mark "facility" */

/* definitions used for doNameLine to differentiate between different command types
 * (with otherwise identical code). This is a left-over from the previous config
 * system. It stays, because it is still useful. So do not wonder why it looks
 * somewhat strange (at least its name). -- rgerhards, 2007-08-01
 */
enum eDirective { DIR_TEMPLATE = 0, DIR_OUTCHANNEL = 1, DIR_ALLOWEDSENDER = 2};

/* The following global variables are used for building
 * tag and host selector lines during startup and config reload.
 * This is stored as a global variable pool because of its ease. It is
 * also fairly compatible with multi-threading as the stratup code must
 * be run in a single thread anyways. So there can be no race conditions. These
 * variables are no longer used once the configuration has been loaded (except,
 * of course, during a reload). rgerhards 2005-10-18
 */
static EHostnameCmpMode eDfltHostnameCmpMode;
static rsCStrObj *pDfltHostnameCmp;
static rsCStrObj *pDfltProgNameCmp;

/* supporting structures for multithreading */
#ifdef USE_PTHREADS
/* this is the first approach to a queue, this time with static
 * memory.
 */
typedef struct {
	void** pbuf;
	long head, tail;
	int full, empty;
	pthread_mutex_t *mut;
	pthread_cond_t *notFull, *notEmpty;
} msgQueue;

int iMainMsgQueueSize;
int bRunningMultithreaded = 0;	/* Is this program running in multithreaded mode? */
msgQueue *pMsgQueue = NULL;
static pthread_t thrdWorker;
static int bGlblDone = 0;
#endif
/* END supporting structures for multithreading */

static int bParseHOSTNAMEandTAG = 1; /* global config var: should the hostname and tag be
                                      * parsed inside message - rgerhards, 2006-03-13 */
static int bFinished = 0;	/* used by termination signal handler, read-only except there
				 * is either 0 or the number of the signal that requested the
 				 * termination.
				 */

/*
 * Intervals at which we flush out "message repeated" messages,
 * in seconds after previous message is logged.  After each flush,
 * we move to the next interval until we reach the largest.
 */
int	repeatinterval[] = { 30, 60 };	/* # of secs before flush */
#define	MAXREPEAT ((int)((sizeof(repeatinterval) / sizeof(repeatinterval[0])) - 1))
#define	REPEATTIME(f)	((f)->f_time + repeatinterval[(f)->f_repeatcount])
#define	BACKOFF(f)	{ if (++(f)->f_repeatcount > MAXREPEAT) \
				 (f)->f_repeatcount = MAXREPEAT; \
			}
#ifdef SYSLOG_INET
union sockunion {
	struct sockinet {
		u_char si_len;
		u_char si_family;
		} su_si;
	struct sockaddr_in  su_sin;
	struct sockaddr_in6 su_sin6;
};
#endif

#define LIST_DELIMITER	':'		/* delimiter between two hosts */

struct	filed *Files = NULL; /* read-only after init() (but beware of sigusr1!) */

struct code {
	char	*c_name;
	int	c_val;
};

static struct code	PriNames[] = {
	{"alert",	LOG_ALERT},
	{"crit",	LOG_CRIT},
	{"debug",	LOG_DEBUG},
	{"emerg",	LOG_EMERG},
	{"err",		LOG_ERR},
	{"error",	LOG_ERR},		/* DEPRECATED */
	{"info",	LOG_INFO},
	{"none",	INTERNAL_NOPRI},	/* INTERNAL */
	{"notice",	LOG_NOTICE},
	{"panic",	LOG_EMERG},		/* DEPRECATED */
	{"warn",	LOG_WARNING},		/* DEPRECATED */
	{"warning",	LOG_WARNING},
	{"*",		TABLE_ALLPRI},
	{NULL,		-1}
};

static struct code	FacNames[] = {
	{"auth",         LOG_AUTH},
	{"authpriv",     LOG_AUTHPRIV},
	{"cron",         LOG_CRON},
	{"daemon",       LOG_DAEMON},
	{"kern",         LOG_KERN},
	{"lpr",          LOG_LPR},
	{"mail",         LOG_MAIL},
	{"mark",         LOG_MARK},		/* INTERNAL */
	{"news",         LOG_NEWS},
	{"security",     LOG_AUTH},		/* DEPRECATED */
	{"syslog",       LOG_SYSLOG},
	{"user",         LOG_USER},
	{"uucp",         LOG_UUCP},
#if defined(LOG_FTP)
	{"ftp",          LOG_FTP},
#endif
	{"local0",       LOG_LOCAL0},
	{"local1",       LOG_LOCAL1},
	{"local2",       LOG_LOCAL2},
	{"local3",       LOG_LOCAL3},
	{"local4",       LOG_LOCAL4},
	{"local5",       LOG_LOCAL5},
	{"local6",       LOG_LOCAL6},
	{"local7",       LOG_LOCAL7},
	{NULL,           -1},
};

/* global variables for config file state */
static int	bDropTrailingLF = 1; /* drop trailing LF's on reception? */
int	Debug;		/* debug flag  - read-only after startup */
static int	bDebugPrintTemplateList = 1;/* output template list in debug mode? */
static int	bDebugPrintCfSysLineHandlerList = 1;/* output cfsyslinehandler list in debug mode? */
static int	bDebugPrintModuleList = 1;/* output module list in debug mode? */
int	bDropMalPTRMsgs = 0;/* Drop messages which have malicious PTR records during DNS lookup */
static uchar	cCCEscapeChar = '\\';/* character to be used to start an escape sequence for control chars */
static int 	bEscapeCCOnRcv; /* escape control characters on reception: 0 - no, 1 - yes */
static int 	bReduceRepeatMsgs; /* reduce repeated message - 0 - no, 1 - yes */
static int	bActExecWhenPrevSusp; /* execute action only when previous one was suspended? */
static int	logEveryMsg = 0;/* no repeat message processing  - read-only after startup
				 * 0 - suppress duplicate messages
				 * 1 - do NOT suppress duplicate messages
				 */
/* end global config file state variables */

static unsigned int Forwarding = 0;
static int nfunix = 1; /* number of Unix sockets open / read-only after startup */
char	LocalHostName[MAXHOSTNAMELEN+1];/* our hostname  - read-only after startup */
char	*LocalDomain;	/* our local domain name  - read-only after startup */
int	*finet = NULL;	/* Internet datagram sockets, first element is nbr of elements
				 * read-only after init(), but beware of restart! */
static char     *LogPort = "514";    /* port number for INET connections */
static int	MarkInterval = 20 * 60;	/* interval between marks in seconds - read-only after startup */
int      family = PF_UNSPEC;     /* protocol family (IPv4, IPv6 or both), set via cmdline */
int      send_to_all = 0;        /* send message to all IPv4/IPv6 addresses */
static int	MarkSeq = 0;	/* mark sequence number - modified in domark() only */
static int	NoFork = 0; 	/* don't fork - don't run in daemon mode - read-only after startup */
static int	AcceptRemote = 0;/* receive messages that come via UDP - read-only after startup */
int	DisableDNS = 0; /* don't look up IP addresses of remote messages */
char	**StripDomains = NULL;/* these domains may be stripped before writing logs  - r/o after s.u.*/
char	**LocalHosts = NULL;/* these hosts are logged with their hostname  - read-only after startup*/
int	NoHops = 1;	/* Can we bounce syslog messages through an
				   intermediate host.  Read-only after startup */
static int     Initialized = 0; /* set when we have initialized ourselves
                                 * rgerhards 2004-11-09: and by initialized, we mean that
                                 * the configuration file could be properly read AND the
                                 * syslog/udp port could be obtained (the later is debatable).
                                 * It is mainly a setting used for emergency logging: if
                                 * something really goes wild, we can not do as indicated in
                                 * the log file, but we still log messages to the system
                                 * console. This is probably the best that can be done in
                                 * such a case.
				 * read-only after startup, but modified during restart
                                 */

extern	int errno;


/* This structure represents the files that will have log
 * copies printed.
 * RGerhards 2004-11-08: Each instance of the filed structure 
 * describes what I call an "output channel". This is important
 * to mention as we now allow database connections to be
 * present in the filed structure. If helps immensely, if we
 * think of it as the abstraction of an output channel.
 * rgerhards, 2005-10-26: The structure below provides ample
 * opportunity for non-thread-safety. Each of the variable
 * accesses must be carefully evaluated, many of them probably
 * be guarded by mutexes. But beware of deadlocks...
 * rgerhards, 2007-08-01: as you can see, the structure has shrunk pretty much. I will
 * remove some of the comments some time. It's still the structure that controls much
 * of the processing that goes on in syslogd, but it now has lots of helpers.
 */
struct filed {
	struct	filed *f_next;		/* next in linked list */
	/* filter properties */
	enum {
		FILTER_PRI = 0,		/* traditional PRI based filer */
		FILTER_PROP = 1		/* extended filter, property based */
	} f_filter_type;
	EHostnameCmpMode eHostnameCmpMode;
	rsCStrObj *pCSHostnameComp;	/* hostname to check */
	rsCStrObj *pCSProgNameComp;	/* tag to check or NULL, if not to be checked */
	union {
		u_char	f_pmask[LOG_NFACILITIES+1];	/* priority mask */
		struct {
			rsCStrObj *pCSPropName;
			enum {
				FIOP_NOP = 0,		/* do not use - No Operation */
				FIOP_CONTAINS  = 1,	/* contains string? */
				FIOP_ISEQUAL  = 2,	/* is (exactly) equal? */
				FIOP_STARTSWITH = 3,	/* starts with a string? */
 				FIOP_REGEX = 4		/* matches a regular expression? */
			} operation;
			rsCStrObj *pCSCompValue;	/* value to "compare" against */
			char isNegated;			/* actually a boolean ;) */
		} prop;
	} f_filterData;

	linkedList_t llActList;	/* list of configured actions */
};
typedef struct filed selector_t;	/* new type name */


/* support for simple textual representation of FIOP names
 * rgerhards, 2005-09-27
 */
static char* getFIOPName(unsigned iFIOP)
{
	char *pRet;
	switch(iFIOP) {
		case FIOP_CONTAINS:
			pRet = "contains";
			break;
		case FIOP_ISEQUAL:
			pRet = "isequal";
			break;
		case FIOP_STARTSWITH:
			pRet = "startswith";
			break;
		case FIOP_REGEX:
			pRet = "regex";
			break;
		default:
			pRet = "NOP";
			break;
	}
	return pRet;
}


/* Reset config variables to default values.
 * rgerhards, 2007-07-17
 */
static rsRetVal resetConfigVariables(uchar __attribute__((unused)) *pp, void __attribute__((unused)) *pVal)
{
	cCCEscapeChar = '#';
	bActExecWhenPrevSusp = 0;
	bDebugPrintTemplateList = 1;
	bDebugPrintCfSysLineHandlerList = 1;
	bDebugPrintModuleList = 1;
	bEscapeCCOnRcv = 1; /* default is to escape control characters */
	bReduceRepeatMsgs = (logEveryMsg == 1) ? 0 : 1;
#ifdef USE_PTHREADS
	iMainMsgQueueSize = 10000;
#endif

	return RS_RET_OK;
}


/* support for defining allowed TCP and UDP senders. We use the same
 * structure to implement this (a linked list), but we define two different
 * list roots, one for UDP and one for TCP.
 * rgerhards, 2005-09-26
 */
#ifdef SYSLOG_INET
/* All of the five below are read-only after startup */
static struct AllowedSenders *pAllowedSenders_UDP = NULL; /* the roots of the allowed sender */
struct AllowedSenders *pAllowedSenders_TCP = NULL; /* lists. If NULL, all senders are ok! */
static struct AllowedSenders *pLastAllowedSenders_UDP = NULL; /* and now the pointers to the last */
static struct AllowedSenders *pLastAllowedSenders_TCP = NULL; /* element in the respective list */
#endif /* #ifdef SYSLOG_INET */

int option_DisallowWarning = 1;	/* complain if message from disallowed sender is received */


/* hardcoded standard templates (used for defaults) */
static uchar template_TraditionalFormat[] = "\"%TIMESTAMP% %HOSTNAME% %syslogtag%%msg:::drop-last-lf%\n\"";
static uchar template_WallFmt[] = "\"\r\n\7Message from syslogd@%HOSTNAME% at %timegenerated% ...\r\n %syslogtag%%msg%\n\r\"";
static uchar template_StdFwdFmt[] = "\"<%PRI%>%TIMESTAMP% %HOSTNAME% %syslogtag%%msg%\"";
static uchar template_StdUsrMsgFmt[] = "\" %syslogtag%%msg%\n\r\"";
static uchar template_StdDBFmt[] = "\"insert into SystemEvents (Message, Facility, FromHost, Priority, DeviceReportedTime, ReceivedAt, InfoUnitID, SysLogTag) values ('%msg%', %syslogfacility%, '%HOSTNAME%', %syslogpriority%, '%timereported:::date-mysql%', '%timegenerated:::date-mysql%', %iut%, '%syslogtag%')\",SQL";
/* end template */


/* up to the next comment, prototypes that should be removed by reordering */
#ifdef USE_PTHREADS
static msgQueue *queueInit (void);
static void *singleWorker(); /* REMOVEME later 2005-10-24 */
#endif
/* Function prototypes. */
static char **crunch_list(char *list);
static void printline(char *hname, char *msg, int iSource);
static void logmsg(int pri, msg_t*, int flags);
static rsRetVal fprintlog(action_t *pAction);
static void reapchild();
static void debug_switch();
static rsRetVal cfline(uchar *line, selector_t **pfCurr);
static int decode(uchar *name, struct code *codetab);
static void sighup_handler();
static void die(int sig);
static void freeSelectors(void);
static rsRetVal processConfFile(uchar *pConfFile);
static rsRetVal selectorAddList(selector_t *f);
static void processImInternal(void);

/* Access functions for the selector_t. These functions are primarily
 * necessary to make things thread-safe. Consequently, they are slim
 * if we compile without pthread support.
 * rgerhards 2005-10-24
 */

/* END Access functions for the selector_t */

/* Code for handling allowed/disallowed senders
 */
#ifdef SYSLOG_INET
static inline void MaskIP6 (struct in6_addr *addr, uint8_t bits) {
	register uint8_t i;
	
	assert (addr != NULL);
	assert (bits <= 128);
	
	i = bits/32;
	if (bits%32)
		addr->s6_addr32[i++] &= htonl(0xffffffff << (32 - (bits % 32)));
	for (; i < (sizeof addr->s6_addr32)/4; i++)
		addr->s6_addr32[i] = 0;
}

static inline void MaskIP4 (struct in_addr  *addr, uint8_t bits) {
	
	assert (addr != NULL);
	assert (bits <=32 );
	
	addr->s_addr &= htonl(0xffffffff << (32 - bits));
}

#define SIN(sa)  ((struct sockaddr_in  *)(sa))
#define SIN6(sa) ((struct sockaddr_in6 *)(sa))

/* This function adds an allowed sender entry to the ACL linked list.
 * In any case, a single entry is added. If an error occurs, the
 * function does its error reporting itself. All validity checks
 * must already have been done by the caller.
 * This is a helper to AddAllowedSender().
 * rgerhards, 2007-07-17
 */
static rsRetVal AddAllowedSenderEntry(struct AllowedSenders **ppRoot, struct AllowedSenders **ppLast,
		     		      struct NetAddr *iAllow, uint8_t iSignificantBits)
{
	struct AllowedSenders *pEntry = NULL;

	assert(ppRoot != NULL);
	assert(ppLast != NULL);
	assert(iAllow != NULL);

	if((pEntry = (struct AllowedSenders*) calloc(1, sizeof(struct AllowedSenders))) == NULL) {
		glblHadMemShortage = 1;
		return RS_RET_OUT_OF_MEMORY; /* no options left :( */
	}
	
	memcpy(&(pEntry->allowedSender), iAllow, sizeof (struct NetAddr));
	pEntry->pNext = NULL;
	pEntry->SignificantBits = iSignificantBits;
	
	/* enqueue */
	if(*ppRoot == NULL) {
		*ppRoot = pEntry;
	} else {
		(*ppLast)->pNext = pEntry;
	}
	*ppLast = pEntry;
	
	return RS_RET_OK;
}

/* function to clear the allowed sender structure in cases where
 * it must be freed (occurs most often when HUPed.
 * TODO: reconsider recursive implementation
 */
static void clearAllowedSenders (struct AllowedSenders *pAllow) {
	if (pAllow != NULL) {
		if (pAllow->pNext != NULL)
			clearAllowedSenders (pAllow->pNext);
		else {
			if (F_ISSET(pAllow->allowedSender.flags, ADDR_NAME))
				free (pAllow->allowedSender.addr.HostWildcard);
			else
				free (pAllow->allowedSender.addr.NetAddr);
			
			free (pAllow);
		}
	}
}

/* function to add an allowed sender to the allowed sender list. The
 * root of the list is caller-provided, so it can be used for all
 * supported lists. The caller must provide a pointer to the root,
 * as it eventually needs to be updated. Also, a pointer to the
 * pointer to the last element must be provided (to speed up adding
 * list elements).
 * rgerhards, 2005-09-26
 * If a hostname is given there are possible multiple entries
 * added (all addresses from that host).
 */
static rsRetVal AddAllowedSender(struct AllowedSenders **ppRoot, struct AllowedSenders **ppLast,
		     		 struct NetAddr *iAllow, uint8_t iSignificantBits)
{
	DEFiRet;

	assert(ppRoot != NULL);
	assert(ppLast != NULL);
	assert(iAllow != NULL);

	if (!F_ISSET(iAllow->flags, ADDR_NAME)) {
		if(iSignificantBits == 0)
			/* we handle this seperatly just to provide a better
			 * error message.
			 */
			logerror("You can not specify 0 bits of the netmask, this would "
				 "match ALL systems. If you really intend to do that, "
				 "remove all $AllowedSender directives.");
		
		switch (iAllow->addr.NetAddr->sa_family) {
		case AF_INET:
			if((iSignificantBits < 1) || (iSignificantBits > 32)) {
				logerrorInt("Invalid bit number in IPv4 address - adjusted to 32",
					    (int)iSignificantBits);
				iSignificantBits = 32;
			}
			
			MaskIP4 (&(SIN(iAllow->addr.NetAddr)->sin_addr), iSignificantBits);
			break;
		case AF_INET6:
			if((iSignificantBits < 1) || (iSignificantBits > 128)) {
				logerrorInt("Invalid bit number in IPv6 address - adjusted to 128",
					    iSignificantBits);
				iSignificantBits = 128;
			}

			MaskIP6 (&(SIN6(iAllow->addr.NetAddr)->sin6_addr), iSignificantBits);
			break;
		default:
			/* rgerhards, 2007-07-16: We have an internal program error in this
			 * case. However, there is not much we can do against it right now. Of
			 * course, we could abort, but that would probably cause more harm
			 * than good. So we continue to run. We simply do not add this line - the
			 * worst thing that happens is that one host will not be allowed to
			 * log.
			 */
			logerrorInt("Internal error caused AllowedSender to be ignored, AF = %d",
				    iAllow->addr.NetAddr->sa_family);
			return RS_RET_ERR;
		}
		/* OK, entry constructed, now lets add it to the ACL list */
		iRet = AddAllowedSenderEntry(ppRoot, ppLast, iAllow, iSignificantBits);
	} else {
		/* we need to process a hostname ACL */
		if (DisableDNS) {
			logerror ("Ignoring hostname based ACLs because DNS is disabled.");
			return RS_RET_OK;
		}
		
		if (!strchr (iAllow->addr.HostWildcard, '*') &&
		    !strchr (iAllow->addr.HostWildcard, '?')) {
			/* single host - in this case, we pull its IP addresses from DNS
			* and add IP-based ACLs.
			*/
			struct addrinfo hints, *res, *restmp;
			struct NetAddr allowIP;
			
			memset (&hints, 0, sizeof (struct addrinfo));
			hints.ai_family = AF_UNSPEC;
			hints.ai_flags  = AI_ADDRCONFIG;
			hints.ai_socktype = SOCK_DGRAM;

			if (getaddrinfo (iAllow->addr.HostWildcard, NULL, &hints, &res) != 0) {
				logerrorSz("DNS error: Can't resolve \"%s\", not added as allowed sender", iAllow->addr.HostWildcard);
				/* We could use the text name in this case - maybe this could become
				 * a user-defined option at some stage.
				 */
				return RS_RET_ERR;
			}
			
			for (restmp = res ; res != NULL ; res = res->ai_next) {
				switch (res->ai_family) {
				case AF_INET: /* add IPv4 */
					iSignificantBits = 32;
					allowIP.flags = 0;
					if((allowIP.addr.NetAddr = malloc(res->ai_addrlen)) == NULL) {
						glblHadMemShortage = 1;
						return RS_RET_OUT_OF_MEMORY;
					}
					memcpy(allowIP.addr.NetAddr, res->ai_addr, res->ai_addrlen);
					
					if((iRet = AddAllowedSenderEntry(ppRoot, ppLast, &allowIP, iSignificantBits))
						!= RS_RET_OK)
						return(iRet);
					break;
				case AF_INET6: /* IPv6 - but need to check if it is a v6-mapped IPv4 */
					if(IN6_IS_ADDR_V4MAPPED (&SIN6(res->ai_addr)->sin6_addr)) {
						/* extract & add IPv4 */
						
						iSignificantBits = 32;
						allowIP.flags = 0;
						if((allowIP.addr.NetAddr = malloc(sizeof(struct sockaddr_in)))
						    == NULL) {
							glblHadMemShortage = 1;
							return RS_RET_OUT_OF_MEMORY;
						}
						SIN(allowIP.addr.NetAddr)->sin_family = AF_INET;
#ifdef HAVE_STRUCT_SOCKADDR_SA_LEN    
                                                SIN(allowIP.addr.NetAddr)->sin_len    = sizeof (struct sockaddr_in);
#endif
						SIN(allowIP.addr.NetAddr)->sin_port   = 0;
						memcpy(&(SIN(allowIP.addr.NetAddr)->sin_addr.s_addr),
							&(SIN6(res->ai_addr)->sin6_addr.s6_addr32[3]),
							sizeof (struct sockaddr_in));

						if((iRet = AddAllowedSenderEntry(ppRoot, ppLast, &allowIP,
								iSignificantBits))
							!= RS_RET_OK)
							return(iRet);
					} else {
						/* finally add IPv6 */
						
						iSignificantBits = 128;
						allowIP.flags = 0;
						if((allowIP.addr.NetAddr = malloc(res->ai_addrlen)) == NULL) {
							glblHadMemShortage = 1;
							return RS_RET_OUT_OF_MEMORY;
						}
						memcpy(allowIP.addr.NetAddr, res->ai_addr, res->ai_addrlen);
						
						if((iRet = AddAllowedSenderEntry(ppRoot, ppLast, &allowIP,
								iSignificantBits))
							!= RS_RET_OK)
							return(iRet);
					}
					break;
				}
			}
			freeaddrinfo (restmp);
		} else {
			/* wildcards in hostname - we need to add a text-based ACL.
			 * For this, we already have everything ready and just need
			 * to pass it along...
			 */
			iRet =  AddAllowedSenderEntry(ppRoot, ppLast, iAllow, iSignificantBits);
		}
	}

	return iRet;
}
#endif /* #ifdef SYSLOG_INET */


#ifdef SYSLOG_INET
/* Print an allowed sender list. The caller must tell us which one.
 * iListToPrint = 1 means UDP, 2 means TCP
 * rgerhards, 2005-09-27
 */
static void PrintAllowedSenders(int iListToPrint)
{
	struct AllowedSenders *pSender;
	uchar szIP[64];
	
	assert((iListToPrint == 1) || (iListToPrint == 2));

	printf("\nAllowed %s Senders:\n",
	       (iListToPrint == 1) ? "UDP" : "TCP");
	pSender = (iListToPrint == 1) ?
		  pAllowedSenders_UDP : pAllowedSenders_TCP;
	if(pSender == NULL) {
		printf("\tNo restrictions set.\n");
	} else {
		while(pSender != NULL) {
			if (F_ISSET(pSender->allowedSender.flags, ADDR_NAME))
				printf ("\t%s\n", pSender->allowedSender.addr.HostWildcard);
			else {
				if(getnameinfo (pSender->allowedSender.addr.NetAddr,
						     SALEN(pSender->allowedSender.addr.NetAddr),
						     (char*)szIP, 64, NULL, 0, NI_NUMERICHOST) == 0) {
					printf ("\t%s/%u\n", szIP, pSender->SignificantBits);
				} else {
					/* getnameinfo() failed - but as this is only a
					 * debug function, we simply spit out an error and do
					 * not care much about it.
					 */
					dprintf("\tERROR in getnameinfo() - something may be wrong "
						"- ignored for now\n");
				}
			}
			pSender = pSender->pNext;
		}
	}
}


/* compares a host to an allowed sender list entry. Handles all subleties
 * including IPv4/v6 as well as domain name wildcards.
 * This is a helper to isAllowedSender. As it is only called once, it is
 * declared inline.
 * Returns 0 if they do not match, something else otherwise.
 * contributed 1007-07-16 by mildew@gmail.com
 */
static inline int MaskCmp(struct NetAddr *pAllow, uint8_t bits, struct sockaddr *pFrom, const char *pszFromHost)
{
	assert(pAllow != NULL);
	assert(pFrom != NULL);

	if(F_ISSET(pAllow->flags, ADDR_NAME)) {
		dprintf ("MaskCmp: host=\"%s\"; pattern=\"%s\"\n", pszFromHost, pAllow->addr.HostWildcard);
		
		return(fnmatch(pAllow->addr.HostWildcard, pszFromHost, FNM_NOESCAPE|FNM_CASEFOLD) == 0);
	} else {/* We need to compare an IP address */
		switch (pFrom->sa_family) {
		case AF_INET:
			if (AF_INET == pAllow->addr.NetAddr->sa_family)
				return(( SIN(pFrom)->sin_addr.s_addr & htonl(0xffffffff << (32 - bits)) )
				       == SIN(pAllow->addr.NetAddr)->sin_addr.s_addr);
			else
				return 0;
			break;
		case AF_INET6:
			switch (pAllow->addr.NetAddr->sa_family) {
			case AF_INET6: {
				struct in6_addr ip, net;
				register uint8_t i;
				
				memcpy (&ip,  &(SIN6(pFrom))->sin6_addr, sizeof (struct in6_addr));
				memcpy (&net, &(SIN6(pAllow->addr.NetAddr))->sin6_addr, sizeof (struct in6_addr));
				
				i = bits/32;
				if (bits % 32)
					ip.s6_addr32[i++] &= htonl(0xffffffff << (32 - (bits % 32)));
				for (; i < (sizeof ip.s6_addr32)/4; i++)
					ip.s6_addr32[i] = 0;
				
				return (memcmp (ip.s6_addr, net.s6_addr, sizeof ip.s6_addr) == 0 &&
					(SIN6(pAllow->addr.NetAddr)->sin6_scope_id != 0 ?
					 SIN6(pFrom)->sin6_scope_id == SIN6(pAllow->addr.NetAddr)->sin6_scope_id : 1));
			}
			case AF_INET: {
				struct in6_addr *ip6 = &(SIN6(pFrom))->sin6_addr;
				struct in_addr  *net = &(SIN(pAllow->addr.NetAddr))->sin_addr;
				
				if ((ip6->s6_addr32[3] & (u_int32_t) htonl((0xffffffff << (32 - bits)))) == net->s_addr &&
#if BYTE_ORDER == LITTLE_ENDIAN
				    (ip6->s6_addr32[2] == (u_int32_t)0xffff0000) &&
#else
				    (ip6->s6_addr32[2] == (u_int32_t)0x0000ffff) &&
#endif
				    (ip6->s6_addr32[1] == 0) && (ip6->s6_addr32[0] == 0))
					return 1;
				else
					return 0;
			}
			default:
				/* Unsupported AF */
				return 0;
			}
		default:
			/* Unsupported AF */
			return 0;
		}
	}
}


/* check if a sender is allowed. The root of the the allowed sender.
 * list must be proveded by the caller. As such, this function can be
 * used to check both UDP and TCP allowed sender lists.
 * returns 1, if the sender is allowed, 0 otherwise.
 * rgerhards, 2005-09-26
 */
int isAllowedSender(struct AllowedSenders *pAllowRoot, struct sockaddr *pFrom, const char *pszFromHost)
{
	struct AllowedSenders *pAllow;
	
	assert(pFrom != NULL);

	if(pAllowRoot == NULL)
		return 1; /* checking disabled, everything is valid! */
	
	/* now we loop through the list of allowed senders. As soon as
	 * we find a match, we return back (indicating allowed). We loop
	 * until we are out of allowed senders. If so, we fall through the
	 * loop and the function's terminal return statement will indicate
	 * that the sender is disallowed.
	 */
	for(pAllow = pAllowRoot ; pAllow != NULL ; pAllow = pAllow->pNext) {
		if (MaskCmp (&(pAllow->allowedSender), pAllow->SignificantBits, pFrom, pszFromHost))
			return 1;
	}
	dprintf("%s is not an allowed sender\n", pszFromHost);
	return 0;
}
#endif /* #ifdef SYSLOG_INET */


/* code to free all sockets within a socket table.
 * A socket table is a descriptor table where the zero
 * element has the count of elements. This is used for
 * listening sockets. The socket table itself is also
 * freed.
 * A POINTER to this structure must be provided, thus
 * double indirection!
 * rgerhards, 2007-06-28
 */
void freeAllSockets(int **socks)
{
	assert(socks != NULL);
	assert(*socks != NULL);
	while(**socks) {
		dprintf("Closing socket %d.\n", (*socks)[**socks]);
		close((*socks)[**socks]);
		(**socks)--;
	}
	free(*socks);
	socks = NULL;
}




/*******************************************************************
 * BEGIN CODE-LIBLOGGING                                           *
 *******************************************************************
 * Code in this section is borrowed from liblogging. This is an
 * interim solution. Once liblogging is fully integrated, this is
 * to be removed (see http://www.monitorware.com/liblogging for
 * more details. 2004-11-16 rgerhards
 *
 * Please note that the orginal liblogging code is modified so that
 * it fits into the context of the current version of syslogd.c.
 *
 * DO NOT PUT ANY OTHER CODE IN THIS BEGIN ... END BLOCK!!!!
 */

/**
 * Parse a 32 bit integer number from a string.
 *
 * \param ppsz Pointer to the Pointer to the string being parsed. It
 *             must be positioned at the first digit. Will be updated 
 *             so that on return it points to the first character AFTER
 *             the integer parsed.
 * \retval The number parsed.
 */

static int srSLMGParseInt32(char** ppsz)
{
	int i;

	i = 0;
	while(isdigit((int) **ppsz))
	{
		i = i * 10 + **ppsz - '0';
		++(*ppsz);
	}

	return i;
}


/**
 * Parse a TIMESTAMP-3339.
 * updates the parse pointer position.
 */
static int srSLMGParseTIMESTAMP3339(struct syslogTime *pTime, char** ppszTS)
{
	char *pszTS = *ppszTS;

	assert(pTime != NULL);
	assert(ppszTS != NULL);
	assert(pszTS != NULL);

	pTime->year = srSLMGParseInt32(&pszTS);

	/* We take the liberty to accept slightly malformed timestamps e.g. in 
	 * the format of 2003-9-1T1:0:0. This doesn't hurt on receiving. Of course,
	 * with the current state of affairs, we would never run into this code
	 * here because at postion 11, there is no "T" in such cases ;)
	 */
	if(*pszTS++ != '-')
		return FALSE;
	pTime->month = srSLMGParseInt32(&pszTS);
	if(pTime->month < 1 || pTime->month > 12)
		return FALSE;

	if(*pszTS++ != '-')
		return FALSE;
	pTime->day = srSLMGParseInt32(&pszTS);
	if(pTime->day < 1 || pTime->day > 31)
		return FALSE;

	if(*pszTS++ != 'T')
		return FALSE;

	pTime->hour = srSLMGParseInt32(&pszTS);
	if(pTime->hour < 0 || pTime->hour > 23)
		return FALSE;

	if(*pszTS++ != ':')
		return FALSE;
	pTime->minute = srSLMGParseInt32(&pszTS);
	if(pTime->minute < 0 || pTime->minute > 59)
		return FALSE;

	if(*pszTS++ != ':')
		return FALSE;
	pTime->second = srSLMGParseInt32(&pszTS);
	if(pTime->second < 0 || pTime->second > 60)
		return FALSE;

	/* Now let's see if we have secfrac */
	if(*pszTS == '.')
	{
		char *pszStart = ++pszTS;
		pTime->secfrac = srSLMGParseInt32(&pszTS);
		pTime->secfracPrecision = (int) (pszTS - pszStart);
	}
	else
	{
		pTime->secfracPrecision = 0;
		pTime->secfrac = 0;
	}

	/* check the timezone */
	if(*pszTS == 'Z')
	{
		pszTS++; /* eat Z */
		pTime->OffsetMode = 'Z';
		pTime->OffsetHour = 0;
		pTime->OffsetMinute = 0;
	}
	else if((*pszTS == '+') || (*pszTS == '-'))
	{
		pTime->OffsetMode = *pszTS;
		pszTS++;

		pTime->OffsetHour = srSLMGParseInt32(&pszTS);
		if(pTime->OffsetHour < 0 || pTime->OffsetHour > 23)
			return FALSE;

		if(*pszTS++ != ':')
			return FALSE;
		pTime->OffsetMinute = srSLMGParseInt32(&pszTS);
		if(pTime->OffsetMinute < 0 || pTime->OffsetMinute > 59)
			return FALSE;
	}
	else
		/* there MUST be TZ information */
		return FALSE;

	/* OK, we actually have a 3339 timestamp, so let's indicated this */
	if(*pszTS == ' ')
		++pszTS;
	else
		return FALSE;

	/* update parse pointer */
	*ppszTS = pszTS;

	return TRUE;
}


/**
 * Parse a TIMESTAMP-3164.
 * Returns TRUE on parse OK, FALSE on parse error.
 */
static int srSLMGParseTIMESTAMP3164(struct syslogTime *pTime, char* pszTS)
{
	assert(pTime != NULL);
	assert(pszTS != NULL);

	getCurrTime(pTime);	/* obtain the current year and UTC offsets! */

	/* If we look at the month (Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec),
	 * we may see the following character sequences occur:
	 *
	 * J(an/u(n/l)), Feb, Ma(r/y), A(pr/ug), Sep, Oct, Nov, Dec
	 *
	 * We will use this for parsing, as it probably is the
	 * fastest way to parse it.
	 *
	 * 2005-07-18, well sometimes it pays to be a bit more verbose, even in C...
	 * Fixed a bug that lead to invalid detection of the data. The issue was that
	 * we had an if(++pszTS == 'x') inside of some of the consturcts below. However,
	 * there were also some elseifs (doing the same ++), which than obviously did not
	 * check the orginal character but the next one. Now removed the ++ and put it
	 * into the statements below. Was a really nasty bug... I didn't detect it before
	 * june, when it first manifested. This also lead to invalid parsing of the rest
	 * of the message, as the time stamp was not detected to be correct. - rgerhards
	 */
	switch(*pszTS++)
	{
	case 'J':
		if(*pszTS == 'a') {
			++pszTS;
			if(*pszTS == 'n') {
				++pszTS;
				pTime->month = 1;
			} else
				return FALSE;
		} else if(*pszTS == 'u') {
			++pszTS;
			if(*pszTS == 'n') {
				++pszTS;
				pTime->month = 6;
			} else if(*pszTS == 'l') {
				++pszTS;
				pTime->month = 7;
			} else
				return FALSE;
		} else
			return FALSE;
		break;
	case 'F':
		if(*pszTS == 'e') {
			++pszTS;
			if(*pszTS == 'b') {
				++pszTS;
				pTime->month = 2;
			} else
				return FALSE;
		} else
			return FALSE;
		break;
	case 'M':
		if(*pszTS == 'a') {
			++pszTS;
			if(*pszTS == 'r') {
				++pszTS;
				pTime->month = 3;
			} else if(*pszTS == 'y') {
				++pszTS;
				pTime->month = 5;
			} else
				return FALSE;
		} else
			return FALSE;
		break;
	case 'A':
		if(*pszTS == 'p') {
			++pszTS;
			if(*pszTS == 'r') {
				++pszTS;
				pTime->month = 4;
			} else
				return FALSE;
		} else if(*pszTS == 'u') {
			++pszTS;
			if(*pszTS == 'g') {
				++pszTS;
				pTime->month = 8;
			} else
				return FALSE;
		} else
			return FALSE;
		break;
	case 'S':
		if(*pszTS == 'e') {
			++pszTS;
			if(*pszTS == 'p') {
				++pszTS;
				pTime->month = 9;
			} else
				return FALSE;
		} else
			return FALSE;
		break;
	case 'O':
		if(*pszTS == 'c') {
			++pszTS;
			if(*pszTS == 't') {
				++pszTS;
				pTime->month = 10;
			} else
				return FALSE;
		} else
			return FALSE;
		break;
	case 'N':
		if(*pszTS == 'o') {
			++pszTS;
			if(*pszTS == 'v') {
				++pszTS;
				pTime->month = 11;
			} else
				return FALSE;
		} else
			return FALSE;
		break;
	case 'D':
		if(*pszTS == 'e') {
			++pszTS;
			if(*pszTS == 'c') {
				++pszTS;
				pTime->month = 12;
			} else
				return FALSE;
		} else
			return FALSE;
		break;
	default:
		return FALSE;
	}

	/* done month */

	if(*pszTS++ != ' ')
		return FALSE;

	/* we accept a slightly malformed timestamp when receiving. This is
	 * we accept one-digit days
	 */
	if(*pszTS == ' ')
		++pszTS;

	pTime->day = srSLMGParseInt32(&pszTS);
	if(pTime->day < 1 || pTime->day > 31)
		return FALSE;

	if(*pszTS++ != ' ')
		return FALSE;
	pTime->hour = srSLMGParseInt32(&pszTS);
	if(pTime->hour < 0 || pTime->hour > 23)
		return FALSE;

	if(*pszTS++ != ':')
		return FALSE;
	pTime->minute = srSLMGParseInt32(&pszTS);
	if(pTime->minute < 0 || pTime->minute > 59)
		return FALSE;

	if(*pszTS++ != ':')
		return FALSE;
	pTime->second = srSLMGParseInt32(&pszTS);
	if(pTime->second < 0 || pTime->second > 60)
		return FALSE;
	if(*pszTS++ != ':')

	/* OK, we actually have a 3164 timestamp, so let's indicate this
	 * and fill the rest of the properties. */
	pTime->timeType = 1;
 	pTime->secfracPrecision = 0;
	pTime->secfrac = 0;
	return TRUE;
}

/*******************************************************************
 * END CODE-LIBLOGGING                                             *
 *******************************************************************/

/**
 * Format a syslogTimestamp into format required by MySQL.
 * We are using the 14 digits format. For example 20041111122600 
 * is interpreted as '2004-11-11 12:26:00'. 
 * The caller must provide the timestamp as well as a character
 * buffer that will receive the resulting string. The function
 * returns the size of the timestamp written in bytes (without
 * the string terminator). If 0 is returend, an error occured.
 */
int formatTimestampToMySQL(struct syslogTime *ts, char* pDst, size_t iLenDst)
{
	/* currently we do not consider localtime/utc. This may later be
	 * added. If so, I recommend using a property replacer option
	 * and/or a global configuration option. However, we should wait
	 * on user requests for this feature before doing anything.
	 * rgerhards, 2007-06-26
	 */
	assert(ts != NULL);
	assert(pDst != NULL);

	if (iLenDst < 15) /* we need at least 14 bytes
			     14 digits for timestamp + '\n' */
		return(0); 

	return(snprintf(pDst, iLenDst, "%4.4d%2.2d%2.2d%2.2d%2.2d%2.2d", 
		ts->year, ts->month, ts->day, ts->hour, ts->minute, ts->second));

}

/**
 * Format a syslogTimestamp to a RFC3339 timestamp string (as
 * specified in syslog-protocol).
 * The caller must provide the timestamp as well as a character
 * buffer that will receive the resulting string. The function
 * returns the size of the timestamp written in bytes (without
 * the string terminator). If 0 is returend, an error occured.
 */
int formatTimestamp3339(struct syslogTime *ts, char* pBuf, size_t iLenBuf)
{
	int iRet;
	char szTZ[7]; /* buffer for TZ information */

	assert(ts != NULL);
	assert(pBuf != NULL);
	
	if(iLenBuf < 20)
		return(0); /* we NEED at least 20 bytes */

	/* do TZ information first, this is easier to take care of "Z" zone in rfc3339 */
	if(ts->OffsetMode == 'Z') {
		szTZ[0] = 'Z';
		szTZ[1] = '\0';
	} else {
		snprintf(szTZ, sizeof(szTZ) / sizeof(char), "%c%2.2d:%2.2d",
			ts->OffsetMode, ts->OffsetHour, ts->OffsetMinute);
	}

	if(ts->secfracPrecision > 0)
	{	/* we now need to include fractional seconds. While doing so, we must look at
		 * the precision specified. For example, if we have millisec precision (3 digits), a
		 * secFrac value of 12 is not equivalent to ".12" but ".012". Obviously, this
		 * is a huge difference ;). To avoid this, we first create a format string with
		 * the specific precision and *then* use that format string to do the actual
		 * formating (mmmmhhh... kind of self-modifying code... ;)).
		 */
		char szFmtStr[64];
		/* be careful: there is ONE actual %d in the format string below ;) */
		snprintf(szFmtStr, sizeof(szFmtStr),
		         "%%04d-%%02d-%%02dT%%02d:%%02d:%%02d.%%0%dd%%s",
			ts->secfracPrecision);
		iRet = snprintf(pBuf, iLenBuf, szFmtStr, ts->year, ts->month, ts->day,
			        ts->hour, ts->minute, ts->second, ts->secfrac, szTZ);
	}
	else
		iRet = snprintf(pBuf, iLenBuf,
		 		"%4.4d-%2.2d-%2.2dT%2.2d:%2.2d:%2.2d%s",
				ts->year, ts->month, ts->day,
			        ts->hour, ts->minute, ts->second, szTZ);
	return(iRet);
}

/**
 * Format a syslogTimestamp to a RFC3164 timestamp sring.
 * The caller must provide the timestamp as well as a character
 * buffer that will receive the resulting string. The function
 * returns the size of the timestamp written in bytes (without
 * the string termnator). If 0 is returend, an error occured.
 */
int formatTimestamp3164(struct syslogTime *ts, char* pBuf, size_t iLenBuf)
{
	static char* monthNames[13] = {"ERR", "Jan", "Feb", "Mar",
	                               "Apr", "May", "Jun", "Jul",
				       "Aug", "Sep", "Oct", "Nov", "Dec"};
	assert(ts != NULL);
	assert(pBuf != NULL);
	
	if(iLenBuf < 16)
		return(0); /* we NEED 16 bytes */
	return(snprintf(pBuf, iLenBuf, "%s %2d %2.2d:%2.2d:%2.2d",
		monthNames[ts->month], ts->day, ts->hour,
		ts->minute, ts->second
		));
}

/**
 * Format a syslogTimestamp to a text format.
 * The caller must provide the timestamp as well as a character
 * buffer that will receive the resulting string. The function
 * returns the size of the timestamp written in bytes (without
 * the string termnator). If 0 is returend, an error occured.
 */
#if 0 /* This method is currently not called, be we like to preserve it */
static int formatTimestamp(struct syslogTime *ts, char* pBuf, size_t iLenBuf)
{
	assert(ts != NULL);
	assert(pBuf != NULL);
	
	if(ts->timeType == 1) {
		return(formatTimestamp3164(ts, pBuf, iLenBuf));
	}

	if(ts->timeType == 2) {
		return(formatTimestamp3339(ts, pBuf, iLenBuf));
	}

	return(0);
}
#endif


/**
 * Get the current date/time in the best resolution the operating
 * system has to offer (well, actually at most down to the milli-
 * second level.
 *
 * The date and time is returned in separate fields as this is
 * most portable and removes the need for additional structures
 * (but I have to admit it is somewhat "bulky";)).
 *
 * Obviously, all caller-provided pointers must not be NULL...
 */
void getCurrTime(struct syslogTime *t)
{
	struct timeval tp;
	struct tm *tm;
	long lBias;

	assert(t != NULL);
	gettimeofday(&tp, NULL);
	tm = localtime((time_t*) &(tp.tv_sec));

	t->year = tm->tm_year + 1900;
	t->month = tm->tm_mon + 1;
	t->day = tm->tm_mday;
	t->hour = tm->tm_hour;
	t->minute = tm->tm_min;
	t->second = tm->tm_sec;
	t->secfrac = tp.tv_usec;
	t->secfracPrecision = 6;

#	if __sun
		/* Solaris uses a different method of exporting the time zone.
		 * It is UTC - localtime, which is the opposite sign of mins east of GMT.
		 */
		lBias = -(daylight ? altzone : timezone);
#	else
		lBias = tm->tm_gmtoff;
#	endif
	if(lBias < 0)
	{
		t->OffsetMode = '-';
		lBias *= -1;
	}
	else
		t->OffsetMode = '+';
	t->OffsetHour = lBias / 3600;
	t->OffsetMinute = lBias % 3600;
}
/* rgerhards 2004-11-09: end of helper routines. On to the 
 * "real" code ;)
 */


static int usage(void)
{
	fprintf(stderr, "usage: rsyslogd [-46Adhvw] [-l hostlist] [-m markinterval] [-n] [-p path]\n" \
		" [-s domainlist] [-r[port]] [-tport[,max-sessions]] [-f conffile] [-i pidfile] [-x]\n");
	exit(1); /* "good" exit - done to terminate usage() */
}

#ifdef SYSLOG_UNIXAF
static int create_unix_socket(const char *path)
{
	struct sockaddr_un sunx;
	int fd;
	char line[MAXLINE +1];

	if (path[0] == '\0')
		return -1;

	(void) unlink(path);

	memset(&sunx, 0, sizeof(sunx));
	sunx.sun_family = AF_UNIX;
	(void) strncpy(sunx.sun_path, path, sizeof(sunx.sun_path));
	fd = socket(AF_UNIX, SOCK_DGRAM, 0);
	if (fd < 0 || bind(fd, (struct sockaddr *) &sunx,
			   SUN_LEN(&sunx)) < 0 ||
	    chmod(path, 0666) < 0) {
		snprintf(line, sizeof(line), "cannot create %s", path);
		logerror(line);
		dprintf("cannot create %s (%d).\n", path, errno);
		close(fd);
		return -1;
	}
	return fd;
}
#endif

#ifdef SYSLOG_INET
/* closes the UDP listen sockets (if they exist) and frees
 * all dynamically assigned memory. 
 */
static void closeUDPListenSockets()
{
	register int i;

        if(finet != NULL) {
	        for (i = 0; i < *finet; i++)
	                close(finet[i+1]);
		free(finet);
		finet = NULL;
	}
}


/* creates the UDP listen sockets
 */
static int *create_udp_socket()
{
        struct addrinfo hints, *res, *r;
        int error, maxs, *s, *socks, on = 1;
	int sockflags;

        memset(&hints, 0, sizeof(hints));
        hints.ai_flags = AI_PASSIVE | AI_NUMERICSERV;
        hints.ai_family = family;
        hints.ai_socktype = SOCK_DGRAM;
        error = getaddrinfo(NULL, LogPort, &hints, &res);
        if(error) {
               logerror((char*) gai_strerror(error));
	       logerror("UDP message reception disabled due to error logged in last message.\n");
	       return NULL;
	}

        /* Count max number of sockets we may open */
        for (maxs = 0, r = res; r != NULL ; r = r->ai_next, maxs++)
		/* EMPTY */;
        socks = malloc((maxs+1) * sizeof(int));
        if (socks == NULL) {
               logerror("couldn't allocate memory for UDP sockets, suspending UDP message reception");
               freeaddrinfo(res);
               return NULL;
        }

        *socks = 0;   /* num of sockets counter at start of array */
        s = socks + 1;
	for (r = res; r != NULL ; r = r->ai_next) {
               *s = socket(r->ai_family, r->ai_socktype, r->ai_protocol);
        	if (*s < 0) {
			if(!(r->ai_family == PF_INET6 && errno == EAFNOSUPPORT))
				logerror("create_udp_socket(), socket");
				/* it is debatable if PF_INET with EAFNOSUPPORT should
				 * also be ignored...
				 */
                        continue;
                }

#		ifdef IPV6_V6ONLY
                if (r->ai_family == AF_INET6) {
                	int ion = 1;
			if (setsockopt(*s, IPPROTO_IPV6, IPV6_V6ONLY,
			      (char *)&ion, sizeof (ion)) < 0) {
			logerror("setsockopt");
			close(*s);
			*s = -1;
			continue;
                	}
                }
#		endif

		/* if we have an error, we "just" suspend that socket. Eventually
		 * other sockets will work. At the end of this function, we check
		 * if we managed to open at least one socket. If not, we'll write
		 * a "inet suspended" message and declare failure. Else we use
		 * what we could obtain.
		 * rgerhards, 2007-06-22
		 */
       		if (setsockopt(*s, SOL_SOCKET, SO_REUSEADDR,
			       (char *) &on, sizeof(on)) < 0 ) {
			logerror("setsockopt(REUSEADDR)");
                        close(*s);
			*s = -1;
			continue;
		}

		/* We need to enable BSD compatibility. Otherwise an attacker
		 * could flood our log files by sending us tons of ICMP errors.
		 */
#ifndef BSD	
		if (should_use_so_bsdcompat()) {
			if (setsockopt(*s, SOL_SOCKET, SO_BSDCOMPAT,
					(char *) &on, sizeof(on)) < 0) {
				logerror("setsockopt(BSDCOMPAT)");
                                close(*s);
				*s = -1;
				continue;
			}
		}
#endif
		/* We must not block on the network socket, in case a packet
		 * gets lost between select and recv, otherwise the process
		 * will stall until the timeout, and other processes trying to
		 * log will also stall.
		 * Patch vom Colin Phipps <cph@cph.demon.co.uk> to the original
		 * sysklogd source. Applied to rsyslogd on 2005-10-19.
		 */
		if ((sockflags = fcntl(*s, F_GETFL)) != -1) {
			sockflags |= O_NONBLOCK;
			/* SETFL could fail too, so get it caught by the subsequent
			 * error check.
			 */
			sockflags = fcntl(*s, F_SETFL, sockflags);
		}
		if (sockflags == -1) {
			logerror("fcntl(O_NONBLOCK)");
                        close(*s);
			*s = -1;
			continue;
		}

		/* rgerhards, 2007-06-22: if we run on a kernel that does not support
		 * the IPV6_V6ONLY socket option, we need to use a work-around. On such
		 * systems the IPv6 socket does also accept IPv4 sockets. So an IPv4
		 * socket can not listen on the same port as an IPv6 socket. The only
		 * workaround is to ignore the "socket in use" error. This is what we
		 * do if we have to.
		 */
	        if(     (bind(*s, r->ai_addr, r->ai_addrlen) < 0)
#		ifndef IPV6_V6ONLY
		     && (errno != EADDRINUSE)
#		endif
	           ) {
                        logerror("bind");
                	close(*s);
			*s = -1;
                        continue;
                }

                (*socks)++;
                s++;
	}

        if(res != NULL)
               freeaddrinfo(res);

	if(Debug && *socks != maxs)
		dprintf("We could initialize %d UDP listen sockets out of %d we received "
		 	"- this may or may not be an error indication.\n", *socks, maxs);

        if(*socks == 0) {
		logerror("No UDP listen socket could successfully be initialized, "
			 "message reception via UDP disabled.\n");
		/* we do NOT need to free any sockets, because there were none... */
        	free(socks);
		return(NULL);
	}

	return(socks);
}
#endif


/* function to destruct a selector_t object
 * rgerhards, 2007-08-01
 */
static rsRetVal selectorDestruct(void *pVal)
{
	selector_t *pThis = (selector_t *) pVal;

	assert(pThis != NULL);

	llDestroy(&pThis->llActList);
	free(pThis);
	
	return RS_RET_OK;
}


/* function to construct a selector_t object
 * rgerhards, 2007-08-01
 */
static rsRetVal selectorConstruct(selector_t **ppThis)
{
	DEFiRet;
	selector_t *pThis;

	assert(ppThis != NULL);
	
	if((pThis = (selector_t*) calloc(1, sizeof(selector_t))) == NULL) {
		glblHadMemShortage = 1;
		ABORT_FINALIZE(RS_RET_OUT_OF_MEMORY);
	}
	CHKiRet(llInit(&pThis->llActList, actionDestruct, NULL, NULL));

finalize_it:
	if(iRet != RS_RET_OK) {
		if(pThis != NULL) {
			selectorDestruct(pThis);
		}
	}
	*ppThis = pThis;
	return iRet;
}


/* rgerhards, 2005-10-24: crunch_list is called only during option processing. So
 * it is never called once rsyslogd is running (not even when HUPed). This code
 * contains some exits, but they are considered safe because they only happen
 * during startup. Anyhow, when we review the code here, we might want to
 * reconsider the exit()s.
 */
static char **crunch_list(char *list)
{
	int count, i;
	char *p, *q;
	char **result = NULL;

	p = list;
	
	/* strip off trailing delimiters */
	while (p[strlen(p)-1] == LIST_DELIMITER) {
		count--;
		p[strlen(p)-1] = '\0';
	}
	/* cut off leading delimiters */
	while (p[0] == LIST_DELIMITER) {
		count--;
		p++; 
	}
	
	/* count delimiters to calculate elements */
	for (count=i=0; p[i]; i++)
		if (p[i] == LIST_DELIMITER) count++;
	
	if ((result = (char **)malloc(sizeof(char *) * (count+2))) == NULL) {
		printf ("Sorry, can't get enough memory, exiting.\n");
		exit(0); /* safe exit, because only called during startup */
	}
	
	/*
	 * We now can assume that the first and last
	 * characters are different from any delimiters,
	 * so we don't have to care about this.
	 */
	count = 0;
	while ((q=strchr(p, LIST_DELIMITER))) {
		result[count] = (char *) malloc((q - p + 1) * sizeof(char));
		if (result[count] == NULL) {
			printf ("Sorry, can't get enough memory, exiting.\n");
			exit(0); /* safe exit, because only called during startup */
		}
		strncpy(result[count], p, q - p);
		result[count][q - p] = '\0';
		p = q; p++;
		count++;
	}
	if ((result[count] = \
	     (char *)malloc(sizeof(char) * strlen(p) + 1)) == NULL) {
		printf ("Sorry, can't get enough memory, exiting.\n");
		exit(0); /* safe exit, because only called during startup */
	}
	strcpy(result[count],p);
	result[++count] = NULL;

#if 0
	count=0;
	while (result[count])
		dprintf ("#%d: %s\n", count, StripDomains[count++]);
#endif
	return result;
}


void untty(void)
#ifdef HAVE_SETSID
{
	if ( !Debug ) {
		setsid();
	}
	return;
}
#else
{
	int i;

	if ( !Debug ) {
		i = open(_PATH_TTY, O_RDWR);
		if (i >= 0) {
			(void) ioctl(i, (int) TIOCNOTTY, (char *)0);
			(void) close(i);
		}
	}
}
#endif


/* rgerhards, 2006-11-30: I have greatly changed this function. Formerly,
 * it tried to reassemble multi-part messages, which is a legacy stock
 * sysklogd concept. In essence, that was that messages not ending with
 * \0 were glued together. As far as I can see, this is a sysklogd
 * specific feature and, from looking at the code, seems to be used
 * pretty seldom (if at all). I remove this now, not the least because it is totally
 * incompatible with upcoming IETF syslog standards. If you experience
 * strange behaviour with messages beeing split across multiple lines,
 * this function here might be the place to look at.
 *
 * Some previous history worth noting:
 * I added the "iSource" parameter. This is needed to distinguish between
 * messages that have a hostname in them (received from the internet) and
 * those that do not have (most prominently /dev/log).  rgerhards 2004-11-16
 * And now I removed the "iSource" parameter and changed it to be "bParseHost",
 * because all that it actually controls is whether the host is parsed or not.
 * For rfc3195 support, we needed to modify the algo for host parsing, so we can
 * no longer rely just on the source (rfc3195d forwarded messages arrive via
 * unix domain sockets but contain the hostname). rgerhards, 2005-10-06
 */
void printchopped(char *hname, char *msg, int len, int fd, int bParseHost)
{
	register int iMsg;
	char *pMsg;
	char *pData;
	char *pEnd;
	char tmpline[MAXLINE + 1];
#	ifdef USE_NETZIP
	char deflateBuf[MAXLINE + 1];
	uLongf iLenDefBuf;
#	endif

	assert(hname != NULL);
	assert(msg != NULL);
	assert(len >= 0);

	dprintf("Message length: %d, File descriptor: %d.\n", len, fd);

	/* we first check if we need to drop trailing LFs, which often make
	 * their way into syslog messages unintentionally. In order to remain
	 * compatible to recent IETF developments, we allow the user to
	 * turn on/off this handling.  rgerhards, 2007-07-23
	 */
	if(bDropTrailingLF && *(msg + len - 1) == '\n') {
		*(msg + len - 1) = '\0';
		len--;
	}

	iMsg = 0;	/* initialize receiving buffer index */
	pMsg = tmpline; /* set receiving buffer pointer */
	pData = msg;	/* set source buffer pointer */
	pEnd = msg + len; /* this is one off, which is intensional */

#	ifdef USE_NETZIP
	/* we first need to check if we have a compressed record. If so,
	 * we must decompress it.
	 */
	if(len > 0 && *msg == 'z') { /* compressed data present? (do NOT change order if conditions!) */
		/* we have compressed data, so let's deflate it. We support a maximum
		 * message size of MAXLINE. If it is larger, an error message is logged
		 * and the message is dropped. We do NOT try to decompress larger messages
		 * as such might be used for denial of service. It might happen to later
		 * builds that such functionality be added as an optional, operator-configurable
		 * feature.
		 */
		int ret;
		iLenDefBuf = MAXLINE;
		ret = uncompress((uchar *) deflateBuf, &iLenDefBuf, (uchar *) msg+1, len-1);
		dprintf("Compressed message uncompressed with status %d, length: new %d, old %d.\n",
		        ret, iLenDefBuf, len-1);
		/* Now check if the uncompression worked. If not, there is not much we can do. In
		 * that case, we log an error message but ignore the message itself. Storing the
		 * compressed text is dangerous, as it contains control characters. So we do
		 * not do this. If someone would like to have a copy, this code here could be
		 * modified to do a hex-dump of the buffer in question. We do not include
		 * this functionality right now.
		 * rgerhards, 2006-12-07
		 */
		if(ret != Z_OK) {
			logerrorInt("Uncompression of a message failed with return code %d "
			            "- enable debug logging if you need further information. "
				    "Message ignored.", ret);
			return; /* unconditional exit, nothing left to do... */
		}
		pData = deflateBuf;
		pEnd = deflateBuf + iLenDefBuf;
	}
#	else /* ifdef USE_NETZIP */
	/* in this case, we still need to check if the message is compressed. If so, we must
	 * tell the user we can not accept it.
	 */
	if(len > 0 && *msg == 'z') {
		logerror("Received a compressed message, but rsyslogd does not have compression "
		         "support enabled. The message will be ignored.");
		return;
	}	
#	endif /* ifdef USE_NETZIP */

	while(pData < pEnd) {
		if(iMsg >= MAXLINE) {
			/* emergency, we now need to flush, no matter if
			 * we are at end of message or not...
			 */
			*(pMsg + iMsg) = '\0'; /* space *is* reserved for this! */
			printline(hname, tmpline, bParseHost);
			return; /* in this case, we are done... nothing left we can do */
		}
		if(*pData == '\0') { /* guard against \0 characters... */
			/* changed to the sequence (somewhat) proposed in
			 * draft-ietf-syslog-protocol-19. rgerhards, 2006-11-30
			 */
			if(iMsg + 3 < MAXLINE) { /* do we have space? */
				*(pMsg + iMsg++) =  cCCEscapeChar;
				*(pMsg + iMsg++) = '0';
				*(pMsg + iMsg++) = '0';
				*(pMsg + iMsg++) = '0';
			} /* if we do not have space, we simply ignore the '\0'... */
			  /* log an error? Very questionable... rgerhards, 2006-11-30 */
			  /* decided: we do not log an error, it won't help... rger, 2007-06-21 */
			++pData;
		} else if(bEscapeCCOnRcv && iscntrl((int) *pData)) {
			/* we are configured to escape control characters. Please note
			 * that this most probably break non-western character sets like
			 * Japanese, Korean or Chinese. rgerhards, 2007-07-17
			 * Note: sysklogd logs octal values only for DEL and CCs above 127.
			 * For others, it logs ^n where n is the control char converted to an
			 * alphabet character. We like consistency and thus escape it to octal
			 * in all cases. If someone complains, we may change the mode. At least
			 * we known now what's going on.
			 * rgerhards, 2007-07-17
			 */
			if(iMsg + 3 < MAXLINE) { /* do we have space? */
				*(pMsg + iMsg++) = cCCEscapeChar;
				*(pMsg + iMsg++) = '0' + ((*pData & 0300) >> 6);
				*(pMsg + iMsg++) = '0' + ((*pData & 0070) >> 3);
				*(pMsg + iMsg++) = '0' + ((*pData & 0007));
			} /* again, if we do not have space, we ignore the char - see comment at '\0' */
			++pData;
		} else {
			*(pMsg + iMsg++) = *pData++;
		}
	}

	*(pMsg + iMsg) = '\0'; /* space *is* reserved for this! */

	/* typically, we should end up here! */
	printline(hname, tmpline, bParseHost);

	return;
}

/* Take a raw input line, decode the message, and print the message
 * on the appropriate log files.
 * rgerhards 2004-11-08: Please note
 * that this function does only a partial decoding. At best, it splits 
 * the PRI part. No further decode happens. The rest is done in 
 * logmsg(). Please note that printsys() calls logmsg() directly, so
 * this is something we need to restructure once we are moving the
 * real decoder in here. I now (2004-11-09) found that printsys() seems
 * not to be called from anywhere. So we might as well decode the full
 * message here.
 * Added the iSource parameter so that we know if we have to parse
 * HOSTNAME or not. rgerhards 2004-11-16.
 * changed parameter iSource to bParseHost. For details, see comment in
 * printchopped(). rgerhards 2005-10-06
 */
void printline(char *hname, char *msg, int bParseHost)
{
	register char *p;
	int pri;
	msg_t *pMsg;

	/* Now it is time to create the message object (rgerhards)
	*/
	if((pMsg = MsgConstruct()) == NULL){
		/* rgerhards, 2007-06-21: if we can not get memory, we discard this
		 * message but continue to run (in the hope that things improve)
		 */
		glblHadMemShortage = 1;
		dprintf("Memory shortage in printline(): Could not construct Msg object.\n");
		return;
	}
	MsgSetRawMsg(pMsg, msg);
	
	pMsg->bParseHOSTNAME  = bParseHost;
	/* test for special codes */
	pri = DEFUPRI;
	p = msg;
	if (*p == '<') {
		pri = 0;
		while (isdigit((int) *++p))
		{
		   pri = 10 * pri + (*p - '0');
		}
		if (*p == '>')
			++p;
	}
	if (pri &~ (LOG_FACMASK|LOG_PRIMASK))
		pri = DEFUPRI;
	pMsg->iFacility = LOG_FAC(pri);
	pMsg->iSeverity = LOG_PRI(pri);

	/* Now we look at the HOSTNAME. That is a bit complicated...
	 * If we have a locally received message, it does NOT
	 * contain any hostname information in the message itself.
	 * As such, the HOSTNAME is the same as the system that
	 * the message was received from (that, for obvious reasons,
	 * being the local host).  rgerhards 2004-11-16
	 */
	if(bParseHost == 0)
		MsgSetHOSTNAME(pMsg, hname);
	MsgSetRcvFrom(pMsg, hname);

	/* rgerhards 2004-11-19: well, well... we've now seen that we
	 * have the "hostname problem" also with the traditional Unix
	 * message. As we like to emulate it, we need to add the hostname
	 * to it.
	 */
	if(MsgSetUxTradMsg(pMsg, p) != 0) return;

	logmsg(pri, pMsg, SYNC_FILE);

	/* rgerhards 2004-11-11:
	 * we are done with the message object. If it still is
	 * stored somewhere, we can call discard anyhow. This
	 * is handled via the reference count - see description
	 * of msg_t for details.
	 */
	MsgDestruct(pMsg);
	return;
}

time_t	now;

/* rgerhards 2004-11-09: the following is a function that can be used
 * to log a message orginating from the syslogd itself. In sysklogd code,
 * this is done by simply calling logmsg(). However, logmsg() is changed in
 * rsyslog so that it takes a msg "object". So it can no longer be called
 * directly. This method here solves the need. It provides an interface that
 * allows to construct a locally-generated message. Please note that this
 * function here probably is only an interim solution and that we need to
 * think on the best way to do this.
 */
static void logmsgInternal(int pri, char *msg, int flags)
{
	msg_t *pMsg;

	if((pMsg = MsgConstruct()) == NULL){
		/* rgerhards 2004-11-09: calling panic might not be the
		 * brightest idea - however, it is the best I currently have
		 * (think a bit more about this).
		 * rgehards, 2007-06-21: I have now thought a bit more about
		 * it. If we are so low on memory, there is few we can do. calling
		 * panic so far only write a debug line - this is seomthing we keep.
		 * Other than that, however, we ignore the error and hope that 
		 * memory shortage will be resolved while we continue to run. In any
		 * case, there is no valid point in aborting the syslogd for this
		 * reason - that would be counter-productive. So we ignore the
		 * to be logged message.
		 */
		glblHadMemShortage = 1;
		dprintf("Memory shortage in logmsgInternal: could not construct Msg object.\n");
		return;
	}

	MsgSetUxTradMsg(pMsg, msg);
	MsgSetRawMsg(pMsg, msg);
	MsgSetHOSTNAME(pMsg, LocalHostName);
	MsgSetTAG(pMsg, "rsyslogd:");
	pMsg->iFacility = LOG_FAC(pri);
	pMsg->iSeverity = LOG_PRI(pri);
	pMsg->bParseHOSTNAME = 0;
	getCurrTime(&(pMsg->tTIMESTAMP)); /* use the current time! */
	flags |= INTERNAL_MSG;

#ifdef USE_PTHREADS
	if(bRunningMultithreaded == 0) { /* not yet in queued mode */
		iminternalAddMsg(pri, pMsg, flags);
	} else {
		/* we have the queue, so we can simply provide the 
		 * message to the queue engine.
		 */
		logmsg(pri, pMsg, flags);
		MsgDestruct(pMsg);
	}
#else
	iminternalAddMsg(pri, pMsg, flags);
#endif
}

/*
 * This functions looks at the given message and checks if it matches the
 * provided filter condition. If so, it returns true, else it returns
 * false. This is a helper to logmsg() and meant to drive the decision
 * process if a message is to be processed or not. As I expect this
 * decision code to grow more complex over time AND logmsg() is already
 * a very lengthe function, I thought a separate function is more appropriate.
 * 2005-09-19 rgerhards
 */
int shouldProcessThisMessage(selector_t *f, msg_t *pMsg)
{
	unsigned short pbMustBeFreed;
	char *pszPropVal;
	int iRet = 0;

	assert(f != NULL);
	assert(pMsg != NULL);

	/* we first have a look at the global, BSD-style block filters (for tag
	 * and host). Only if they match, we evaluate the actual filter.
	 * rgerhards, 2005-10-18
	 */
	if(f->eHostnameCmpMode == HN_NO_COMP) {
		/* EMPTY BY INTENSION - we check this value first, because
		 * it is the one most often used, so this saves us time!
		 */
	} else if(f->eHostnameCmpMode == HN_COMP_MATCH) {
		if(rsCStrSzStrCmp(f->pCSHostnameComp, (uchar*) getHOSTNAME(pMsg), getHOSTNAMELen(pMsg))) {
			/* not equal, so we are already done... */
			dprintf("hostname filter '+%s' does not match '%s'\n", 
				rsCStrGetSzStr(f->pCSHostnameComp), getHOSTNAME(pMsg));
			return 0;
		}
	} else { /* must be -hostname */
		if(!rsCStrSzStrCmp(f->pCSHostnameComp, (uchar*) getHOSTNAME(pMsg), getHOSTNAMELen(pMsg))) {
			/* not equal, so we are already done... */
			dprintf("hostname filter '-%s' does not match '%s'\n", 
				rsCStrGetSzStr(f->pCSHostnameComp), getHOSTNAME(pMsg));
			return 0;
		}
	}
	
	if(f->pCSProgNameComp != NULL) {
		if(rsCStrSzStrCmp(f->pCSProgNameComp, (uchar*) getProgramName(pMsg), getProgramNameLen(pMsg))) {
			/* not equal, so we are already done... */
			dprintf("programname filter '%s' does not match '%s'\n", 
				rsCStrGetSzStr(f->pCSProgNameComp), getProgramName(pMsg));
			return 0;
		}
	}
	
	/* done with the BSD-style block filters */

	if(f->f_filter_type == FILTER_PRI) {
		/* skip messages that are incorrect priority */
		if ( (f->f_filterData.f_pmask[pMsg->iFacility] == TABLE_NOPRI) || \
		    ((f->f_filterData.f_pmask[pMsg->iFacility] & (1<<pMsg->iSeverity)) == 0) )
			iRet = 0;
		else
			iRet = 1;
	} else {
		assert(f->f_filter_type == FILTER_PROP); /* assert() just in case... */
		pszPropVal = MsgGetProp(pMsg, NULL,
			        f->f_filterData.prop.pCSPropName, &pbMustBeFreed);

		/* Now do the compares (short list currently ;)) */
		switch(f->f_filterData.prop.operation ) {
		case FIOP_CONTAINS:
			if(rsCStrLocateInSzStr(f->f_filterData.prop.pCSCompValue, (uchar*) pszPropVal) != -1)
				iRet = 1;
			break;
		case FIOP_ISEQUAL:
			if(rsCStrSzStrCmp(f->f_filterData.prop.pCSCompValue,
					  (uchar*) pszPropVal, strlen(pszPropVal)) == 0)
				iRet = 1; /* process message! */
			break;
		case FIOP_STARTSWITH:
			if(rsCStrSzStrStartsWithCStr(f->f_filterData.prop.pCSCompValue,
					  (uchar*) pszPropVal, strlen(pszPropVal)) == 0)
				iRet = 1; /* process message! */
			break;
		case FIOP_REGEX:
			if(rsCStrSzStrMatchRegex(f->f_filterData.prop.pCSCompValue,
					  (unsigned char*) pszPropVal) == 0)
				iRet = 1;
			break;
		default:
			/* here, it handles NOP (for performance reasons) */
			assert(f->f_filterData.prop.operation == FIOP_NOP);
			iRet = 1; /* as good as any other default ;) */
			break;
		}

		/* now check if the value must be negated */
		if(f->f_filterData.prop.isNegated)
			iRet = (iRet == 1) ?  0 : 1;

		/* cleanup */
		if(pbMustBeFreed)
			free(pszPropVal);
		
		if(Debug) {
			char *pszPropValDeb;
			unsigned short pbMustBeFreedDeb;
			pszPropValDeb = MsgGetProp(pMsg, NULL,
					f->f_filterData.prop.pCSPropName, &pbMustBeFreedDeb);
			printf("Filter: check for property '%s' (value '%s') ",
			        rsCStrGetSzStr(f->f_filterData.prop.pCSPropName),
			        pszPropValDeb);
			if(f->f_filterData.prop.isNegated)
				printf("NOT ");
			printf("%s '%s': %s\n",
			       getFIOPName(f->f_filterData.prop.operation),
			       rsCStrGetSzStr(f->f_filterData.prop.pCSCompValue),
			       iRet ? "TRUE" : "FALSE");
			if(pbMustBeFreedDeb)
				free(pszPropValDeb);
		}
	}

	return(iRet);
}


/* doEmergencyLoggin()
 * ... does exactly do that. It logs messages when the subsystem has not yet
 * been initialized. This almost always happens during initial startup or
 * during HUPing.  -- rgerhards, 2007-07-25
 * rgerhards, 2007-08-03: as of now, this can normally no longer happen. All
 * startup messages are now buffered until the system is ready to run. I leave
 * this minimal implementation here in in the very remote case that it might
 * be needed in the future or due to a program bug. Do *not* excpect this
 * code to be called.
 */
static void doEmergencyLogging(msg_t *pMsg)
{
	assert(pMsg != NULL);
	fprintf(stderr, "rsyslog: %s\n", pMsg->pszMSG);
}


/* call the configured action. Does all necessary housekeeping.
 * rgerhards, 2007-08-01
 */
static rsRetVal callAction(msg_t *pMsg, action_t *pAction)
{
	DEFiRet;

	assert(pMsg != NULL);
	assert(pAction != NULL);

	/* first, we need to check if this is a disabled
	 * entry. If so, we must not further process it.
	 * rgerhards 2005-09-26
	 * In the future, disabled modules may be re-probed from time
	 * to time. They are in a perfectly legal state, except that the
	 * doAction method indicated that it wanted to be disabled - but
	 * we do not consider this is a solution for eternity... So we
	 * should check from time to time if affairs have improved.
	 * rgerhards, 2007-07-24
	 */
	if(pAction->bEnabled == 0) {
		ABORT_FINALIZE(RS_RET_OK);
	}

	if(actionIsSuspended(pAction)) {
		CHKiRet(actionTryResume(pAction));
	}

	/* don't output marks to recently written files */
	if ((pMsg->msgFlags & MARK) && (now - pAction->f_time) < MarkInterval / 2) {
		ABORT_FINALIZE(RS_RET_OK);
	}

	/* suppress duplicate lines to this file
	 */
	if ((pAction->f_ReduceRepeated == 1) &&
	    (pMsg->msgFlags & MARK) == 0 && getMSGLen(pMsg) == getMSGLen(pAction->f_pMsg) &&
	    !strcmp(getMSG(pMsg), getMSG(pAction->f_pMsg)) &&
	    !strcmp(getHOSTNAME(pMsg), getHOSTNAME(pAction->f_pMsg))) {
		pAction->f_prevcount++;
		dprintf("msg repeated %d times, %ld sec of %d.\n",
		    pAction->f_prevcount, now - pAction->f_time,
		    repeatinterval[pAction->f_repeatcount]);
		/* If domark would have logged this by now, flush it now (so we don't hold
		 * isolated messages), but back off so we'll flush less often in the future.
		 */
		if (now > REPEATTIME(pAction)) {
			iRet = fprintlog(pAction);
			BACKOFF(pAction);
		}
	} else {
		/* new line, save it */
		/* first check if we have a previous message stored
		 * if so, emit and then discard it first
		 */
		if(pAction->f_pMsg != NULL) {
			if(pAction->f_prevcount > 0)
				fprintlog(pAction);
				/* we do not care about iRet above - I think it's right but if we have
				 * some troubles, you know where to look at ;) -- rgerhards, 2007-08-01
				 */
			MsgDestruct(pAction->f_pMsg);
		}
		pAction->f_pMsg = MsgAddRef(pMsg);
		/* call the output driver */
		iRet = fprintlog(pAction);
	}

finalize_it:
	return iRet;
}


/* helper to processMsg(), used to call the configured actions. It is
 * executed from within llExecFunc() of the action list.
 * rgerhards, 2007-08-02
 */
typedef struct processMsgDoActions_s {
	int bPrevWasSuspended; /* was the previous action suspended? */
	msg_t *pMsg;
} processMsgDoActions_t;
DEFFUNC_llExecFunc(processMsgDoActions)
{
	DEFiRet;
	rsRetVal iRetMod;	/* return of module - we do not always pass that */
	action_t *pAction = (action_t*) pData;
	processMsgDoActions_t *pDoActData = (processMsgDoActions_t*) pParam;

	assert(pAction != NULL);

	if((pAction->bExecWhenPrevSusp  == 1) && (pDoActData->bPrevWasSuspended == 0)) {
		dprintf("not calling action because the previous one is not suspended\n");
		ABORT_FINALIZE(RS_RET_OK);
	}

	iRetMod = callAction(pDoActData->pMsg, pAction);
	if(iRetMod == RS_RET_DISCARDMSG) {
		ABORT_FINALIZE(RS_RET_DISCARDMSG);
	} else if(iRetMod == RS_RET_SUSPENDED) {
		/* indicate suspension for next module to be called */
		pDoActData->bPrevWasSuspended = 1;
	} else {
		pDoActData->bPrevWasSuspended = 0;
	}

finalize_it:
	return iRet;
}


/* Process (consume) a received message. Calls the actions configured.
 * Can some time later run in its own thread. To aid this, the calling
 * parameters should be reduced to just pMsg.
 * See comment dated 2005-10-13 in logmsg() on multithreading.
 * rgerhards, 2005-10-13
 */
static void processMsg(msg_t *pMsg)
{
	selector_t *f;
	int bContinue;
	processMsgDoActions_t DoActData;

	assert(pMsg != NULL);

	/* log the message to the particular outputs */
	if (!Initialized) {
		doEmergencyLogging(pMsg);
		return;
	}

	bContinue = 1;
	for (f = Files; f != NULL && bContinue ; f = f->f_next) {
		/* This is actually the "filter logic". Looks like we need
		 * to improve it a little for complex selector line conditions. We
		 * won't do that for now, but at least we now know where
		 * to look at.
		 * 2005-09-09 rgerhards
		 * ok, we are now ready to move to something more advanced. Because
		 * of this, I am moving the actual decision code to outside this function.
		 * 2005-09-19 rgerhards
		 */
		if(!shouldProcessThisMessage(f, pMsg)) {
			continue;
		}

		/* ok -- from here, we have action-specific code, nothing really selector-specific -- rger 2007-08-01 */
		DoActData.pMsg = pMsg;
		DoActData.bPrevWasSuspended = 0;
		if(llExecFunc(&f->llActList, processMsgDoActions, (void*)&DoActData) == RS_RET_DISCARDMSG)
			bContinue = 0;
	}
}


#ifdef	USE_PTHREADS
/* This block contains code that is only present when USE_PTHREADS is
 * enabled. I plan to move it to some other file, but for the time
 * being, I include it here because that saves me from the need to
 * do so many external definitons.
 * rgerhards, 2005-10-24
 */

/* shuts down the worker process. The worker will first finish
 * with the message queue. Control returns, when done.
 * This function is intended to be called during syslogd shutdown
 * AND restart (init()!).
 * rgerhards, 2005-10-25
 */
static void stopWorker(void)
{
	if(bRunningMultithreaded) {
		/* we could run single-threaded if there was an error
		 * during startup. Then, we obviously do not need to
		 * do anything to stop the worker ;)
		 */
		dprintf("Initiating worker thread shutdown sequence...\n");
		/* We are now done with all messages, so we need to wake up the
		 * worker thread and then wait for it to finish.
		 */
		bGlblDone = 1;
		/* It's actually not "not empty" below but awaking the worker. The worker
		 * then finds out that it shall terminate and does so.
		 */
		pthread_cond_signal(pMsgQueue->notEmpty);
		pthread_join(thrdWorker, NULL);
		bRunningMultithreaded = 0;
		dprintf("Worker thread terminated.\n");
	}
}


/* starts the worker thread. It must be made sure that the queue is
 * already existing and the worker is NOT already running.
 * rgerhards 2005-10-25
 */
static void startWorker(void)
{
	int i;
	if(pMsgQueue != NULL) {
		bGlblDone = 0; /* we are NOT done (else worker would immediately terminate) */
		i = pthread_create(&thrdWorker, NULL, singleWorker, NULL);
		dprintf("Worker thread started with state %d.\n", i);
		bRunningMultithreaded = 1;
	} else {
		dprintf("message queue not existing, remaining single-threaded.\n");
	}
}


static msgQueue *queueInit (void)
{
	msgQueue *q;

	q = (msgQueue *)malloc(sizeof(msgQueue));
	if (q == NULL) return (NULL);
	if((q->pbuf = malloc(sizeof(void *) * iMainMsgQueueSize)) == NULL) {
		free(q);
		return NULL;
	}

	q->empty = 1;
	q->full = 0;
	q->head = 0;
	q->tail = 0;
	q->mut = (pthread_mutex_t *) malloc (sizeof (pthread_mutex_t));
	pthread_mutex_init (q->mut, NULL);
	q->notFull = (pthread_cond_t *) malloc (sizeof (pthread_cond_t));
	pthread_cond_init (q->notFull, NULL);
	q->notEmpty = (pthread_cond_t *) malloc (sizeof (pthread_cond_t));
	pthread_cond_init (q->notEmpty, NULL);
	
	return (q);
}

static void queueDelete (msgQueue *q)
{
	pthread_mutex_destroy (q->mut);
	free (q->mut);	
	pthread_cond_destroy (q->notFull);
	free (q->notFull);
	pthread_cond_destroy (q->notEmpty);
	free (q->notEmpty);
	free(q->pbuf);
	free (q);
}

static void queueAdd (msgQueue *q, void* in)
{
	q->pbuf[q->tail] = in;
	q->tail++;
	if (q->tail == iMainMsgQueueSize)
		q->tail = 0;
	if (q->tail == q->head)
		q->full = 1;
	q->empty = 0;

	return;
}

static void queueDel (msgQueue *q, msg_t **out)
{
	*out = (msg_t*) q->pbuf[q->head];

	q->head++;
	if (q->head == iMainMsgQueueSize)
		q->head = 0;
	if (q->head == q->tail)
		q->empty = 1;
	q->full = 0;

	return;
}


/* The worker thread (so far, we have dual-threading, so only one
 * worker thread. Having more than one worker requires considerable
 * additional code review in regard to thread-safety.
 */
static void *singleWorker()
{
	msgQueue *fifo = pMsgQueue;
	msg_t *pMsg;

	assert(fifo != NULL);

	while(!bGlblDone || !fifo->empty) {
		pthread_mutex_lock(fifo->mut);
		while (fifo->empty && !bGlblDone) {
			dprintf ("singleWorker: queue EMPTY, waiting for next message.\n");
			pthread_cond_wait (fifo->notEmpty, fifo->mut);
		}
		if(!fifo->empty) {
			/* dequeue element (still protected from mutex) */
			queueDel(fifo, &pMsg);
			assert(pMsg != NULL);
			pthread_mutex_unlock(fifo->mut);
			pthread_cond_signal (fifo->notFull);
			/* do actual processing (the lengthy part, runs in parallel) */
			dprintf("Lone worker is running...\n");
			processMsg(pMsg);
			MsgDestruct(pMsg);
			/* If you need a delay for testing, here do a */
			/* sleep(1); */
		} else { /* the mutex must be unlocked in any case (important for termination) */
			pthread_mutex_unlock(fifo->mut);
		}
		
		if(debugging_on && bGlblDone && !fifo->empty)
			dprintf("Worker does not yet terminate because it still has messages to process.\n");
	}

	dprintf("Worker thread terminates\n");
	pthread_exit(0);
}

/* END threads-related code */
#endif /* #ifdef USE_PTHREADS */


/* This method enqueues a message into the the message buffer. It also
 * the worker thread, so that the message will be processed. If we are
 * compiled without PTHREADS support, we simply use this method as
 * an alias for processMsg().
 * See comment dated 2005-10-13 in logmsg() on multithreading.
 * rgerhards, 2005-10-24
 */
#ifndef	USE_PTHREADS
#define enqueueMsg(x) processMsg((x))
#else
static void enqueueMsg(msg_t *pMsg)
{
	int iRet;
	msgQueue *fifo = pMsgQueue;
	struct timespec t;

	assert(pMsg != NULL);

	if(bRunningMultithreaded == 0) {
		/* multi-threading is not yet initialized, happens e.g.
		 * during startup and restart. rgerhards, 2005-10-25
		 */
		 dprintf("enqueueMsg: not yet running on multiple threads\n");
		 processMsg(pMsg);
	} else {
		/* "normal" mode, threading initialized */
		pthread_mutex_lock(fifo->mut);
			
		while (fifo->full) {
			dprintf ("enqueueMsg: queue FULL.\n");
			
			clock_gettime (CLOCK_REALTIME, &t);
			t.tv_sec += 2;
			
			if(pthread_cond_timedwait (fifo->notFull,
						   fifo->mut, &t) != 0) {
				dprintf("enqueueMsg: cond timeout, dropping message!\n");
				goto unlock;
			}
		}
		queueAdd(fifo, MsgAddRef(pMsg));
	unlock:
		/* now activate the worker thread */
		pthread_mutex_unlock(fifo->mut);
		iRet = pthread_cond_signal(fifo->notEmpty);
		dprintf("EnqueueMsg signaled condition (%d)\n", iRet);
	}
}
#endif /* #ifndef USE_PTHREADS */


/* Helper to parseRFCSyslogMsg. This function parses a field up to
 * (and including) the SP character after it. The field contents is
 * returned in a caller-provided buffer. The parsepointer is advanced
 * to after the terminating SP. The caller must ensure that the 
 * provided buffer is large enough to hold the to be extracted value.
 * Returns 0 if everything is fine or 1 if either the field is not
 * SP-terminated or any other error occurs.
 * rger, 2005-11-24
 */
static int parseRFCField(char **pp2parse, char *pResult)
{
	char *p2parse;
	int iRet = 0;

	assert(pp2parse != NULL);
	assert(*pp2parse != NULL);
	assert(pResult != NULL);

	p2parse = *pp2parse;

	/* this is the actual parsing loop */
	while(*p2parse && *p2parse != ' ') {
		*pResult++ = *p2parse++;
	}

	if(*p2parse == ' ')
		++p2parse; /* eat SP, but only if not at end of string */
	else
		iRet = 1; /* there MUST be an SP! */
	*pResult = '\0';

	/* set the new parse pointer */
	*pp2parse = p2parse;
	return 0;
}


/* Helper to parseRFCSyslogMsg. This function parses the structured
 * data field of a message. It does NOT parse inside structured data,
 * just gets the field as whole. Parsing the single entities is left
 * to other functions. The parsepointer is advanced
 * to after the terminating SP. The caller must ensure that the 
 * provided buffer is large enough to hold the to be extracted value.
 * Returns 0 if everything is fine or 1 if either the field is not
 * SP-terminated or any other error occurs.
 * rger, 2005-11-24
 */
static int parseRFCStructuredData(char **pp2parse, char *pResult)
{
	char *p2parse;
	int bCont = 1;
	int iRet = 0;

	assert(pp2parse != NULL);
	assert(*pp2parse != NULL);
	assert(pResult != NULL);

	p2parse = *pp2parse;

	/* this is the actual parsing loop
	 * Remeber: structured data starts with [ and includes any characters
	 * until the first ] followed by a SP. There may be spaces inside
	 * structured data. There may also be \] inside the structured data, which
	 * do NOT terminate an element.
	 */
	if(*p2parse != '[')
		return 1; /* this is NOT structured data! */

	while(bCont) {
		if(*p2parse == '\0') {
			iRet = 1; /* this is not valid! */
			bCont = 0;
		} else if(*p2parse == '\\' && *(p2parse+1) == ']') {
			/* this is escaped, need to copy both */
			*pResult++ = *p2parse++;
			*pResult++ = *p2parse++;
		} else if(*p2parse == ']' && *(p2parse+1) == ' ') {
			/* found end, just need to copy the ] and eat the SP */
			*pResult++ = *p2parse;
			p2parse += 2;
			bCont = 0;
		} else {
			*pResult++ = *p2parse++;
		}
	}

	if(*p2parse == ' ')
		++p2parse; /* eat SP, but only if not at end of string */
	else
		iRet = 1; /* there MUST be an SP! */
	*pResult = '\0';

	/* set the new parse pointer */
	*pp2parse = p2parse;
	return 0;
}

/* parse a RFC-formatted syslog message. This function returns
 * 0 if processing of the message shall continue and 1 if something
 * went wrong and this messe should be ignored. This function has been
 * implemented in the effort to support syslog-protocol. Please note that
 * the name (parse *RFC*) stems from the hope that syslog-protocol will
 * some time become an RFC. Do not confuse this with informational
 * RFC 3164 (which is legacy syslog).
 *
 * currently supported format:
 *
 * <PRI>VERSION SP TIMESTAMP SP HOSTNAME SP APP-NAME SP PROCID SP MSGID SP [SD-ID]s SP MSG
 *
 * <PRI> is already stripped when this function is entered. VERSION already
 * has been confirmed to be "1", but has NOT been stripped from the message.
 *
 * rger, 2005-11-24
 */
static int parseRFCSyslogMsg(msg_t *pMsg, int flags)
{
	char *p2parse;
	char *pBuf;
	int bContParse = 1;

	assert(pMsg != NULL);
	assert(pMsg->pszUxTradMsg != NULL);
	p2parse = (char*) pMsg->pszUxTradMsg;

	/* do a sanity check on the version and eat it */
	assert(p2parse[0] == '1' && p2parse[1] == ' ');
	p2parse += 2;

	/* Now get us some memory we can use as a work buffer while parsing.
	 * We simply allocated a buffer sufficiently large to hold all of the
	 * message, so we can not run into any troubles. I think this is
	 * more wise then to use individual buffers.
	 */
	if((pBuf = malloc(sizeof(char)* strlen(p2parse) + 1)) == NULL)
		return 1;
		
	/* IMPORTANT NOTE:
	 * Validation is not actually done below nor are any errors handled. I have
	 * NOT included this for the current proof of concept. However, it is strongly
	 * advisable to add it when this code actually goes into production.
	 * rgerhards, 2005-11-24
	 */

	/* TIMESTAMP */
	if(srSLMGParseTIMESTAMP3339(&(pMsg->tTIMESTAMP),  &p2parse) == FALSE) {
		dprintf("no TIMESTAMP detected!\n");
		bContParse = 0;
		flags |= ADDDATE;
	}

	if (flags & ADDDATE) {
		getCurrTime(&(pMsg->tTIMESTAMP)); /* use the current time! */
	}

	/* HOSTNAME */
	if(bContParse) {
		parseRFCField(&p2parse, pBuf);
		MsgSetHOSTNAME(pMsg, pBuf);
	} else {
		/* we can not parse, so we get the system we
		 * received the data from.
		 */
		MsgSetHOSTNAME(pMsg, getRcvFrom(pMsg));
	}

	/* APP-NAME */
	if(bContParse) {
		parseRFCField(&p2parse, pBuf);
		MsgSetAPPNAME(pMsg, pBuf);
	}

	/* PROCID */
	if(bContParse) {
		parseRFCField(&p2parse, pBuf);
		MsgSetPROCID(pMsg, pBuf);
	}

	/* MSGID */
	if(bContParse) {
		parseRFCField(&p2parse, pBuf);
		MsgSetMSGID(pMsg, pBuf);
	}

	/* STRUCTURED-DATA */
	if(bContParse) {
		parseRFCStructuredData(&p2parse, pBuf);
		MsgSetStructuredData(pMsg, pBuf);
	}

	/* MSG */
	MsgSetMSG(pMsg, p2parse);

	return 0; /* all ok */
}
/* parse a legay-formatted syslog message. This function returns
 * 0 if processing of the message shall continue and 1 if something
 * went wrong and this messe should be ignored. This function has been
 * implemented in the effort to support syslog-protocol.
 * rger, 2005-11-24
 * As of 2006-01-10, I am removing the logic to continue parsing only
 * when a valid TIMESTAMP is detected. Validity of other fields already
 * is ignored. This is due to the fact that the parser has grown smarter
 * and is now more able to understand different dialects of the syslog
 * message format. I do not expect any bad side effects of this change,
 * but I thought I log it in this comment.
 * rgerhards, 2006-01-10
 */
static int parseLegacySyslogMsg(msg_t *pMsg, int flags)
{
	char *p2parse;
	char *pBuf;
	char *pWork;
	rsCStrObj *pStrB;
	int iCnt;
	int bTAGCharDetected;

	assert(pMsg != NULL);
	assert(pMsg->pszUxTradMsg != NULL);
	p2parse = (char*) pMsg->pszUxTradMsg;

	/*
	 * Check to see if msg contains a timestamp
	 */
	if(srSLMGParseTIMESTAMP3164(&(pMsg->tTIMESTAMP), p2parse) == TRUE)
		p2parse += 16;
	else {
		flags |= ADDDATE;
	}

	/* here we need to check if the timestamp is valid. If it is not,
	 * we can not continue to parse but must treat the rest as the 
	 * MSG part of the message (as of RFC 3164).
	 * rgerhards 2004-12-03
	 */
	(void) time(&now);
	if (flags & ADDDATE) {
		getCurrTime(&(pMsg->tTIMESTAMP)); /* use the current time! */
	}

	/* rgerhards, 2006-03-13: next, we parse the hostname and tag. But we 
	 * do this only when the user has not forbidden this. I now introduce some
	 * code that allows a user to configure rsyslogd to treat the rest of the
	 * message as MSG part completely. In this case, the hostname will be the
	 * machine that we received the message from and the tag will be empty. This
	 * is meant to be an interim solution, but for now it is in the code.
	 */

	if(bParseHOSTNAMEandTAG && !(flags & INTERNAL_MSG)) {
		/* parse HOSTNAME - but only if this is network-received!
		 * rger, 2005-11-14: we still have a problem with BSD messages. These messages
		 * do NOT include a host name. In most cases, this leads to the TAG to be treated
		 * as hostname and the first word of the message as the TAG. Clearly, this is not
		 * of advantage ;) I think I have now found a way to handle this situation: there
		 * are certain characters which are frequently used in TAG (e.g. ':'), which are
		 * *invalid* in host names. So while parsing the hostname, I check for these characters.
		 * If I find them, I set a simple flag but continue. After parsing, I check the flag.
		 * If it was set, then we most probably do not have a hostname but a TAG. Thus, I change
		 * the fields. I think this logic shall work with any type of syslog message.
		 */
		bTAGCharDetected = 0;
		if(pMsg->bParseHOSTNAME) {
			/* TODO: quick and dirty memory allocation */
			if((pBuf = malloc(sizeof(char)* strlen(p2parse) +1)) == NULL)
				return 1;
			pWork = pBuf;
			/* this is the actual parsing loop */
			while(*p2parse && *p2parse != ' ' && *p2parse != ':') {
				if(   *p2parse == '[' || *p2parse == ']' || *p2parse == '/')
					bTAGCharDetected = 1;
				*pWork++ = *p2parse++;
			}
			/* we need to handle ':' seperately, because it terminates the
			 * TAG - so we also need to terminate the parser here!
			 */
			if(*p2parse == ':') {
				bTAGCharDetected = 1;
				++p2parse;
			} else if(*p2parse == ' ')
				++p2parse;
			*pWork = '\0';
			MsgAssignHOSTNAME(pMsg, pBuf);
		}
		/* check if we seem to have a TAG */
		if(bTAGCharDetected) {
			/* indeed, this smells like a TAG, so lets use it for this. We take
			 * the HOSTNAME from the sender system instead.
			 */
			dprintf("HOSTNAME contains invalid characters, assuming it to be a TAG.\n");
			moveHOSTNAMEtoTAG(pMsg);
			MsgSetHOSTNAME(pMsg, getRcvFrom(pMsg));
		}

		/* now parse TAG - that should be present in message from
		 * all sources.
		 * This code is somewhat not compliant with RFC 3164. As of 3164,
		 * the TAG field is ended by any non-alphanumeric character. In
		 * practice, however, the TAG often contains dashes and other things,
		 * which would end the TAG. So it is not desirable. As such, we only
		 * accept colon and SP to be terminators. Even there is a slight difference:
		 * a colon is PART of the TAG, while a SP is NOT part of the tag
		 * (it is CONTENT). Finally, we allow only up to 32 characters for
		 * TAG, as it is specified in RFC 3164.
		 */
		/* The following code in general is quick & dirty - I need to get
		 * it going for a test, rgerhards 2004-11-16 */
		/* lol.. we tried to solve it, just to remind ourselfs that 32 octets
		 * is the max size ;) we need to shuffle the code again... Just for 
		 * the records: the code is currently clean, but we could optimize it! */
		if(!bTAGCharDetected) {
			char *pszTAG;
			if((pStrB = rsCStrConstruct()) == NULL) 
				return 1;
			rsCStrSetAllocIncrement(pStrB, 33);
			pWork = pBuf;
			iCnt = 0;
			while(*p2parse && *p2parse != ':' && *p2parse != ' ' && iCnt < 32) {
				rsCStrAppendChar(pStrB, *p2parse++);
				++iCnt;
			}
			if(*p2parse == ':') {
				++p2parse; 
				rsCStrAppendChar(pStrB, ':');
			}
			rsCStrFinish(pStrB);

			pszTAG = (char*) rsCStrConvSzStrAndDestruct(pStrB);
			if(pszTAG == NULL)
			{	/* rger, 2005-11-10: no TAG found - this implies that what
				 * we have considered to be the HOSTNAME is most probably the
				 * TAG. We consider it so probable, that we now adjust it
				 * that way. So we pick up the previously set hostname, assign
				 * it to tag and use the sender system (from IP stack) as
				 * the hostname. This situation is the standard case with
				 * stock BSD syslogd.
				 */
				dprintf("No TAG in message, assuming that HOSTNAME is missing.\n");
				moveHOSTNAMEtoTAG(pMsg);
				MsgSetHOSTNAME(pMsg, getRcvFrom(pMsg));
			}
			else
			{ /* we have a TAG, so we can happily set it ;) */
				MsgAssignTAG(pMsg, pszTAG);
			}
		} else {
			/* we have no TAG, so we ... */
			/*DO NOTHING*/;
		}
	} else {
		/* we enter this code area when the user has instructed rsyslog NOT
		 * to parse HOSTNAME and TAG - rgerhards, 2006-03-13
		 */
		if(!(flags & INTERNAL_MSG))
		{
			dprintf("HOSTNAME and TAG not parsed by user configuraton.\n");
			MsgSetHOSTNAME(pMsg, getRcvFrom(pMsg));
		}
	}

	/* The rest is the actual MSG */
	MsgSetMSG(pMsg, p2parse);

	return 0; /* all ok */
}


/*
 * Log a message to the appropriate log files, users, etc. based on
 * the priority.
 * rgerhards 2004-11-08: actually, this also decodes all but the PRI part.
 * rgerhards 2004-11-09: ... but only, if syslogd could properly be initialized
 *			 if not, we use emergency logging to the console and in
 *                       this case, no further decoding happens.
 * changed to no longer receive a plain message but a msg object instead.
 * rgerhards-2004-11-16: OK, we are now up to another change... This method
 * actually needs to PARSE the message. How exactly this needs to happen depends on
 * a number of things. Most importantly, it depends on the source. For example,
 * locally received messages (SOURCE_UNIXAF) do NOT have a hostname in them. So
 * we need to treat them differntly form network-received messages which have.
 * Well, actually not all network-received message really have a hostname. We
 * can just hope they do, but we can not be sure. So this method tries to find
 * whatever can be found in the message and uses that... Obviously, there is some
 * potential for misinterpretation, which we simply can not solve under the
 * circumstances given.
 */
void logmsg(int pri, msg_t *pMsg, int flags)
{
	char *msg;
	char PRItext[20];

	assert(pMsg != NULL);
	assert(pMsg->pszUxTradMsg != NULL);
	msg = (char*) pMsg->pszUxTradMsg;
	dprintf("logmsg: %s, flags %x, from '%s', msg %s\n",
	        textpri(PRItext, sizeof(PRItext) / sizeof(char), pri),
		flags, getRcvFrom(pMsg), msg);

	/* rger 2005-11-24 (happy thanksgiving!): we now need to check if we have
	 * a traditional syslog message or one formatted according to syslog-protocol.
	 * We need to apply different parsers depending on that. We use the
	 * -protocol VERSION field for the detection.
	 */
	if(msg[0] == '1' && msg[1] == ' ') {
		dprintf("Message has syslog-protocol format.\n");
		setProtocolVersion(pMsg, 1);
		if(parseRFCSyslogMsg(pMsg, flags) == 1)
			return;
	} else { /* we have legacy syslog */
		dprintf("Message has legacy syslog format.\n");
		setProtocolVersion(pMsg, 0);
		if(parseLegacySyslogMsg(pMsg, flags) == 1)
			return;
	}

	/* ---------------------- END PARSING ---------------- */

	/* rgerhards, 2005-10-13: if we consider going multi-threaded, this
	 * is probably the best point to split between a producer and a consumer
	 * thread. In general, with the first multi-threaded approach, we should
	 * NOT try to do more than have a single producer and consumer, at least
	 * if both are from the current code base. The issue is that this code
	 * was definitely not written with reentrancy in mind and uses a lot of
	 * global variables. So it is very dangerous to simply go ahead and multi
	 * thread it. However, I think there is a clear distinction between
	 * producer (where data is received) and consumer (where the actions are).
	 * It should be fairly safe to create a single thread for each and run them
	 * concurrently, thightly coupled via an in-memory queue. Even with this 
	 * limited multithraeding, benefits are immediate: the lengthy actions
	 * (database writes!) are de-coupled from the receivers, what should result
	 * in less likely message loss (loss due to receiver overrun). It also allows
	 * us to utilize 2-cpu systems, which will soon be common given the current
	 * advances in multicore CPU hardware. So this is well worth trying.
	 * Another plus of this two-thread-approach would be that it can easily be configured,
	 * so if there are compatibility issues with the threading libs, we could simply
	 * disable it (as a makefile feature).
	 * There is one important thing to keep in mind when doing this basic
	 * multithreading. The syslog/tcp message forwarder manipulates a structutre
	 * that is used by the main thread, which actually sends the data. This
	 * structure must be guarded by a mutex, else we will have race conditions and
	 * some very bad things could happen.
	 *
	 * Additional consumer threads might be added relatively easy for new receivers,
	 * e.g. if we decide to move RFC 3195 via liblogging natively into rsyslogd.
	 *
	 * To aid this functionality, I am moving the rest of the code (the actual
	 * consumer) to its own method, now called "processMsg()".
	 *
	 * rgerhards, 2005-10-25: as of now, the dual-threading code is now in place.
	 * It is an optional feature and even when enabled, rsyslogd will run single-threaded
	 * if it gets any errors during thread creation.
	 */
	
	pMsg->msgFlags = flags;
	enqueueMsg(pMsg);
}


/* rgerhards 2004-11-09: fprintlog() is the actual driver for
 * the output channel. It receives the channel description (f) as
 * well as the message and outputs them according to the channel
 * semantics. The message is typically already contained in the
 * channel save buffer (f->f_prevline). This is not only the case
 * when a message was already repeated but also when a new message
 * arrived.
 * rgerhards 2007-08-01: interface changed to use action_t
 */
rsRetVal fprintlog(action_t *pAction)
{
	msg_t *pMsgSave;	/* to save current message pointer, necessary to restore
				   it in case it needs to be updated (e.g. repeated msgs) */
	pMsgSave = NULL;	/* indicate message poiner not saved */
	DEFiRet;
	int i;

	/* first check if this is a regular message or the repeation of
	 * a previous message. If so, we need to change the message text
	 * to "last message repeated n times" and then go ahead and write
	 * it. Please note that we can not modify the message object, because
	 * that would update it in other selectors as well. As such, we first
	 * need to create a local copy of the message, which we than can update.
	 * rgerhards, 2007-07-10
	 */
	if(pAction->f_prevcount > 1) {
		msg_t *pMsg;
		uchar szRepMsg[64];
		snprintf((char*)szRepMsg, sizeof(szRepMsg), "last message repeated %d times",
		    pAction->f_prevcount);

		if((pMsg = MsgDup(pAction->f_pMsg)) == NULL) {
			/* it failed - nothing we can do against it... */
			dprintf("Message duplication failed, dropping repeat message.\n");
			return RS_RET_ERR;
		}

		/* We now need to update the other message properties.
		 * ... RAWMSG is a problem ... Please note that digital
		 * signatures inside the message are also invalidated.
		 */
		getCurrTime(&(pMsg->tRcvdAt));
		getCurrTime(&(pMsg->tTIMESTAMP));
		MsgSetMSG(pMsg, (char*)szRepMsg);
		MsgSetRawMsg(pMsg, (char*)szRepMsg);

		pMsgSave = pAction->f_pMsg;	/* save message pointer for later restoration */
		pAction->f_pMsg = pMsg;	/* use the new msg (pointer will be restored below) */
	}

	dprintf("Called fprintlog, logging to %s", modGetStateName(pAction->pMod));

	pAction->f_time = now; /* we need this for message repeation processing TODO: why must "now" be global? */

	/* When we reach this point, we have a valid, non-disabled action.
	 * So let's execute it. -- rgerhards, 2007-07-24
	 */
	/* here we must loop to process all requested strings */

	for(i = 0 ; i < pAction->iNumTpls ; ++i) {
		if((pAction->ppMsgs[i] = tplToString(pAction->ppTpl[i], pAction->f_pMsg)) == NULL) {
			dprintf("memory alloc failed while generating message strings - message ignored\n");
			glblHadMemShortage = 1;
			iRet = RS_RET_OUT_OF_MEMORY;
			goto finalize_it;
		}
	}
	/* call configured action */
	iRet = pAction->pMod->mod.om.doAction(pAction->ppMsgs, pAction->f_pMsg->msgFlags, pAction->pModData);

	if(iRet == RS_RET_DISABLE_ACTION) {
		dprintf("Action requested to be disabled, done that.\n");
		pAction->bEnabled = 0; /* that's it... */
	}

	if(iRet == RS_RET_SUSPENDED) {
		dprintf("Action requested to be suspended, done that.\n");
		actionSuspend(pAction);
	}

	if(iRet == RS_RET_OK)
		pAction->f_prevcount = 0; /* message process, so we start a new cycle */

finalize_it:
	/* cleanup */
	for(i = 0 ; i < pAction->iNumTpls ; ++i) {
		if(pAction->ppMsgs[i] != NULL) {
			free(pAction->ppMsgs[i]);
			pAction->ppMsgs[i] = NULL;
		}
	}

	if(pMsgSave != NULL) {
		/* we had saved the original message pointer. That was
		 * done because we needed to create a temporary one
		 * (most often for "message repeated n time" handling. If so,
		 * we need to restore the original one now, so that procesing
		 * can continue as normal. We also need to discard the temporary
		 * one, as we do not like memory leaks ;) Please note that the original
		 * message object will be discarded by our callers, so this is nothing
		 * of our buisiness. rgerhards, 2007-07-10
		 */
		MsgDestruct(pAction->f_pMsg);
		pAction->f_pMsg = pMsgSave;	/* restore it */
	}

	return iRet;
}


static void reapchild()
{
	int saved_errno = errno;
	signal(SIGCHLD, reapchild);	/* reset signal handler -ASP */
	while(waitpid(-1, NULL, WNOHANG) > 0);
	errno = saved_errno;
}


/* helper to domark to flush the individual action links via llExecFunc
 * rgerhards, 2007-08-02
 */
DEFFUNC_llExecFunc(domarkActions)
{
	action_t *pAction = (action_t*) pData;

	assert(pAction != NULL);

	if (pAction->f_prevcount && now >= REPEATTIME(pAction)) {
		dprintf("flush %s: repeated %d times, %d sec.\n",
		    modGetStateName(pAction->pMod), pAction->f_prevcount,
		    repeatinterval[pAction->f_repeatcount]);
		fprintlog(pAction);
		BACKOFF(pAction);
	}

	return RS_RET_OK; /* we ignore errors, we can not do anything either way */
}


/* This method writes mark messages and - some time later - flushes reapeat
 * messages.
 * This method was initially called by an alarm handler. As such, it could potentially
 * have  race-conditons. For details, see
 * http://lkml.org/lkml/2005/3/26/37
 * http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=301511
 * I have now changed it so that the alarm handler only sets a global variable, telling
 * the main thread that it must do mark processing. So domark() is now called from the
 * main thread itself, which is the only thing to make sure rsyslogd will not do
 * strange things. The way it originally was seemed to work because mark occurs very
 * seldom. However, the code called was anything else but reentrant, so it was like
 * russian roulette.
 * rgerhards, 2005-10-20
 */
static void domark(void)
{
	register selector_t *f;

	if (MarkInterval > 0) {
		now = time(NULL);
		MarkSeq += TIMERINTVL;
		if (MarkSeq >= MarkInterval) {
			logmsgInternal(LOG_INFO, "-- MARK --", ADDDATE|MARK);
			MarkSeq = 0;
		}

		/* see if we need to flush any "message repeated n times"... */
		for (f = Files; f != NULL ; f = f->f_next) {
			llExecFunc(&f->llActList, domarkActions, NULL);
		}
	}
}


/* This is the alarm handler setting the global variable for
 * domark request. See domark() comments for further details.
 * rgerhards, 2005-10-20
 */
static void domarkAlarmHdlr()
{
	bRequestDoMark = 1; /* request alarm */
	(void) signal(SIGALRM, domarkAlarmHdlr);
	(void) alarm(TIMERINTVL);
}


static void debug_switch()
{
	dprintf("Switching debugging_on to %s\n", (debugging_on == 0) ? "true" : "false");
	debugging_on = (debugging_on == 0) ? 1 : 0;
	signal(SIGUSR1, debug_switch);
}


/*
 * Add a string to error message and send it to logerror()
 * The error message is passed to snprintf() and must be
 * correctly formatted for it (containing a single %s param).
 * rgerhards 2005-09-19
 */
void logerrorSz(char *type, char *errMsg)
{
	char buf[1024];

	snprintf(buf, sizeof(buf), type, errMsg);
	buf[sizeof(buf)/sizeof(char) - 1] = '\0'; /* just to be on the safe side... */
	logerror(buf);
	return;
}

/*
 * Add an integer to error message and send it to logerror()
 * The error message is passed to snprintf() and must be
 * correctly formatted for it (containing a single %d param).
 * rgerhards 2005-09-19
 */
void logerrorInt(char *type, int errCode)
{
	char buf[1024];

	snprintf(buf, sizeof(buf), type, errCode);
	buf[sizeof(buf)/sizeof(char) - 1] = '\0'; /* just to be on the safe side... */
	logerror(buf);
	return;
}

/* Print syslogd errors some place.
 */
void logerror(char *type)
{
	char buf[1024];

	dprintf("Called logerr, msg: %s\n", type);

	if (errno == 0)
		snprintf(buf, sizeof(buf), "%s", type);
	else
		snprintf(buf, sizeof(buf), "%s: %s", type, strerror(errno));
	buf[sizeof(buf)/sizeof(char) - 1] = '\0'; /* just to be on the safe side... */
	errno = 0;
	logmsgInternal(LOG_SYSLOG|LOG_ERR, buf, ADDDATE);
	return;
}

/* doDie() is a signal handler. If called, it sets the bFinished variable
 * to indicate the program should terminate. However, it does not terminate
 * it itself, because that causes issues with multi-threading. The actual
 * termination is then done on the main thread. This solution might introduce
 * a minimal delay, but it is much cleaner than the approach of doing everything
 * inside the signal handler.
 * rgerhards, 2005-10-26
 */
static void doDie(int sig)
{
	dprintf("DoDie called.\n");
	bFinished = sig;
}


/* die() is called when the program shall end. This typically only occurs
 * during sigterm or during the initialization. If you search for places where
 * it is called, search for "die", not "die(", because the later will not find
 * setting of signal handlers! As die() is intended to shutdown rsyslogd, it is
 * safe to call exit() here. Just make sure that die() itself is not called
 * at inapropriate places. As a general rule of thumb, it is a bad idea to add
 * any calls to die() in new code!
 * rgerhards, 2005-10-24
 */
static void die(int sig)
{
	char buf[256];
	int i;

	if (sig) {
		dprintf(" exiting on signal %d\n", sig);
		(void) snprintf(buf, sizeof(buf) / sizeof(char),
		 " [origin software=\"rsyslogd\" " "swVersion=\"" VERSION \
		 "\" x-pid=\"%d\"]" " exiting on signal %d.",
		 (int) myPid, sig);
		errno = 0;
		logmsgInternal(LOG_SYSLOG|LOG_INFO, buf, ADDDATE);
	}
	
	/* Free ressources and close connections */
	freeSelectors();

#ifdef	USE_PTHREADS
	/* Worker threads are stopped by freeSelectors() */
	queueDelete(pMsgQueue); /* delete fifo here! */
	pMsgQueue = NULL;
#endif
	
	/* now clean up the listener part */
#ifdef SYSLOG_INET
	/* Close the UNIX sockets. */
        for (i = 0; i < nfunix; i++)
		if (funix[i] != -1)
			close(funix[i]);
	/* Close the UDP inet socket. */
	closeUDPListenSockets();
	/* Close the TCP inet socket. */
	if(sockTCPLstn != NULL && *sockTCPLstn) {
		deinit_tcp_listener();
	}
#endif

	/* Clean-up files. */
        for (i = 0; i < nfunix; i++)
		if (funixn[i] && funix[i] != -1)
			(void)unlink(funixn[i]);

	/* rger 2005-02-22
	 * now clean up the in-memory structures. OK, the OS
	 * would also take care of that, but if we do it
	 * ourselfs, this makes finding memory leaks a lot
	 * easier.
	 */
	tplDeleteAll();

	remove_pid(PidFile);
	if(glblHadMemShortage)
		dprintf("Had memory shortage at least once during the run.\n");
	dprintf("Clean shutdown completed, bye.\n");
	exit(0); /* "good" exit, this is the terminator function for rsyslog [die()] */
}

/*
 * Signal handler to terminate the parent process.
 * rgerhards, 2005-10-24: this is only called during forking of the
 * detached syslogd. I consider this method to be safe.
 */
static void doexit()
{
	exit(0); /* "good" exit, only during child-creation */
}


/* parse an allowed sender config line and add the allowed senders
 * (if the line is correct).
 * rgerhards, 2005-09-27
 */
static rsRetVal addAllowedSenderLine(char* pName, uchar** ppRestOfConfLine)
{
#ifdef SYSLOG_INET
	struct AllowedSenders **ppRoot;
	struct AllowedSenders **ppLast;
	rsParsObj *pPars;
	rsRetVal iRet;
	struct NetAddr *uIP = NULL;
	int iBits;
#endif

	assert(pName != NULL);
	assert(ppRestOfConfLine != NULL);
	assert(*ppRestOfConfLine != NULL);

#ifndef SYSLOG_INET
	errno = 0;
	logerror("config file contains allowed sender list, but rsyslogd "
	         "compiled without Internet support - line ignored");
	return RS_RET_ERR;
#else
	if(!strcasecmp(pName, "udp")) {
		ppRoot = &pAllowedSenders_UDP;
		ppLast = &pLastAllowedSenders_UDP;
	} else if(!strcasecmp(pName, "tcp")) {
		ppRoot = &pAllowedSenders_TCP;
		ppLast = &pLastAllowedSenders_TCP;
	} else {
		logerrorSz("Invalid protocol '%s' in allowed sender "
		           "list, line ignored", pName);
		return RS_RET_ERR;
	}

	/* OK, we now know the protocol and have valid list pointers.
	 * So let's process the entries. We are using the parse class
	 * for this.
	 */
	/* create parser object starting with line string without leading colon */
	if((iRet = rsParsConstructFromSz(&pPars, (uchar*) *ppRestOfConfLine) != RS_RET_OK)) {
		logerrorInt("Error %d constructing parser object - ignoring allowed sender list", iRet);
		return(iRet);
	}

	while(!parsIsAtEndOfParseString(pPars)) {
		if(parsPeekAtCharAtParsPtr(pPars) == '#')
			break; /* a comment-sign stops processing of line */
		/* now parse a single IP address */
		if((iRet = parsAddrWithBits(pPars, &uIP, &iBits)) != RS_RET_OK) {
			logerrorInt("Error %d parsing address in allowed sender"
				    "list - ignoring.", iRet);
			rsParsDestruct(pPars);
			return(iRet);
		}
		if((iRet = AddAllowedSender(ppRoot, ppLast, uIP, iBits))
			!= RS_RET_OK) {
			logerrorInt("Error %d adding allowed sender entry "
				    "- ignoring.", iRet);
			rsParsDestruct(pPars);
			return(iRet);
		}
		free (uIP); /* copy stored in AllowedSenders list */ 
	}

	/* cleanup */
	*ppRestOfConfLine += parsGetCurrentPosition(pPars);
	return rsParsDestruct(pPars);
#endif /*#ifndef SYSLOG_INET */
}


/* process a directory and include all of its files into
 * the current config file. There is no specific order of inclusion,
 * files are included in the order they are read from the directory.
 * The caller must have make sure that the provided parameter is
 * indeed a directory.
 * rgerhards, 2007-08-01
 */
static rsRetVal doIncludeDirectory(uchar *pDirName)
{
	DEFiRet;
	int iEntriesDone = 0;
	DIR *pDir;
	union {
              struct dirent d;
              char b[offsetof(struct dirent, d_name) + NAME_MAX + 1];
	} u;
	struct dirent *res;
	size_t iDirNameLen;
	size_t iFileNameLen;
	uchar szFullFileName[MAXFNAME];

	assert(pDirName != NULL);

	if((pDir = opendir((char*) pDirName)) == NULL) {
		logerror("error opening include directory");
		ABORT_FINALIZE(RS_RET_FOPEN_FAILURE);
	}

	/* prepare file name buffer */
	iDirNameLen = strlen((char*) pDirName);
	memcpy(szFullFileName, pDirName, iDirNameLen);

	/* now read the directory */
	iEntriesDone = 0;
	while(readdir_r(pDir, &u.d, &res) == 0) {
		if(res == NULL)
			break; /* this also indicates end of directory */
		if(res->d_type != DT_REG)
			continue; /* we are not interested in special files */
		if(res->d_name[0] == '.')
			continue; /* these files we are also not interested in */
		++iEntriesDone;
		/* construct filename */
		iFileNameLen = strnlen(res->d_name, NAME_MAX);
		memcpy(szFullFileName + iDirNameLen, res->d_name, iFileNameLen);
		*(szFullFileName + iDirNameLen + iFileNameLen) = '\0';
		dprintf("including file '%s'\n", szFullFileName);
		processConfFile(szFullFileName);
		/* we deliberately ignore the iRet of processConfFile() - this is because
		 * failure to process one file does not mean all files will fail. By ignoring,
		 * we retry with the next file, which is the best thing we can do. -- rgerhards, 2007-08-01
		 */
	}

	if(iEntriesDone == 0) {
		/* I just make it a debug output, because I can think of a lot of cases where it
		 * makes sense not to have any files. E.g. a system maintainer may place a $Include
		 * into the config file just in case, when additional modules be installed. When none
		 * are installed, the directory will be empty, which is fine. -- rgerhards 2007-08-01
		 */
		dprintf("warning: the include directory contained no files - this may be ok.\n");
	}

finalize_it:
	if(pDir != NULL)
		closedir(pDir);

	return iRet;
}


/* process a $include config line. That type of line requires
 * inclusion of another file.
 * rgerhards, 2007-08-01
 */
static rsRetVal doIncludeLine(uchar **pp, __attribute__((unused)) void* pVal)
{
	DEFiRet;
	uchar cfgFile[MAXFNAME];

	assert(pp != NULL);
	assert(*pp != NULL);

	if(getSubString(pp, (char*) cfgFile, sizeof(cfgFile) / sizeof(uchar), ' ')  != 0) {
		logerror("could not extract group name");
		ABORT_FINALIZE(RS_RET_NOT_FOUND);
	}

	if(*(cfgFile+strlen((char*) cfgFile) - 1) == '/') {
		dprintf("requested to include directory '%s'\n", cfgFile);
		iRet = doIncludeDirectory(cfgFile);
	} else {
		dprintf("Requested to include config file '%s'\n", cfgFile);
		iRet = processConfFile(cfgFile);
	}

finalize_it:
	return iRet;
}


/* process a $ModLoad config line.
 * As of now, it is a dummy, that will later evolve into the
 * loader for plug-ins.
 * rgerhards, 2007-07-21
 */
static rsRetVal doModLoad(uchar **pp, __attribute__((unused)) void* pVal)
{
	DEFiRet;
	uchar szName[512];

	assert(pp != NULL);
	assert(*pp != NULL);

	if(getSubString(pp, (char*) szName, sizeof(szName) / sizeof(uchar), ' ')  != 0) {
		logerror("could not extract group name");
		ABORT_FINALIZE(RS_RET_NOT_FOUND);
	}

	dprintf("Requested to load module '%s'\n", szName);

	if(!strcmp((char*)szName, "MySQL")) {
		bModMySQLLoaded = 1;
	} else {
		logerrorSz("$ModLoad with invalid module name '%s' - currently 'MySQL' only supported",
			   (char*) szName);
	}

	skipWhiteSpace(pp); /* skip over any whitespace */

finalize_it:
	return iRet;
}

/* parse and interpret a $-config line that starts with
 * a name (this is common code). It is parsed to the name
 * and then the proper sub-function is called to handle
 * the actual directive.
 * rgerhards 2004-11-17
 * rgerhards 2005-06-21: previously only for templates, now 
 *    generalized.
 */
static rsRetVal doNameLine(uchar **pp, void* pVal)
{
	DEFiRet;
	uchar *p;
	enum eDirective eDir;
	char szName[128];

	assert(pp != NULL);
	p = *pp;
	assert(p != NULL);

	eDir = (enum eDirective) pVal;	/* this time, it actually is NOT a pointer! */

	if(getSubString(&p, szName, sizeof(szName) / sizeof(char), ',')  != 0) {
		logerror("Invalid config line: could not extract name - line ignored");
		ABORT_FINALIZE(RS_RET_NOT_FOUND);
	}
	if(*p == ',')
		++p; /* comma was eaten */
	
	/* we got the name - now we pass name & the rest of the string
	 * to the subfunction. It makes no sense to do further
	 * parsing here, as this is in close interaction with the
	 * respective subsystem. rgerhards 2004-11-17
	 */
	
	switch(eDir) {
		case DIR_TEMPLATE: 
			tplAddLine(szName, &p);
			break;
		case DIR_OUTCHANNEL: 
			ochAddLine(szName, &p);
			break;
		case DIR_ALLOWEDSENDER: 
			addAllowedSenderLine(szName, &p);
			break;
		default:/* we do this to avoid compiler warning - not all
			 * enum values call this function, so an incomplete list
			 * is quite ok (but then we should not run into this code,
			 * so at least we log a debug warning).
			 */
			dprintf("INTERNAL ERROR: doNameLine() called with invalid eDir %d.\n",
				eDir);
			break;
	}

	*pp = p;

finalize_it:
	return iRet;
}


/* set the processes umask (upon configuration request)
 */
static rsRetVal setUmask(void __attribute__((unused)) *pVal, int iUmask)
{
	umask(iUmask);
	dprintf("umask set to 0%3.3o.\n", iUmask);

	return RS_RET_OK;
}


/* Parse and interpret a system-directive in the config line
 * A system directive is one that starts with a "$" sign. It offers
 * extended configuration parameters.
 * 2004-11-17 rgerhards
 */
rsRetVal cfsysline(uchar *p)
{
	DEFiRet;
	uchar szCmd[64];
	uchar errMsg[128];	/* for dynamic error messages */

	assert(p != NULL);
	errno = 0;
	if(getSubString(&p, (char*) szCmd, sizeof(szCmd) / sizeof(uchar), ' ')  != 0) {
		logerror("Invalid $-configline - could not extract command - line ignored\n");
		ABORT_FINALIZE(RS_RET_NOT_FOUND);
	}

	/* we now try and see if we can find the command in the registered
	 * list of cfsysline handlers. -- rgerhards, 2007-07-31
	 */
	CHKiRet(processCfSysLineCommand(szCmd, &p));

	/* now check if we have some extra characters left on the line - that
	 * should not be the case. Whitespace is OK, but everything else should
	 * trigger a warning (that may be an indication of undesired behaviour).
	 * An exception, of course, are comments (starting with '#').
	 * rgerhards, 2007-07-04
	 */
	skipWhiteSpace(&p);

	if(*p && *p != '#') { /* we have a non-whitespace, so let's complain */
		snprintf((char*) errMsg, sizeof(errMsg)/sizeof(uchar),
		         "error: extra characters in config line ignored: '%s'", p);
		errno = 0;
		logerror((char*) errMsg);
	}

finalize_it:
	return iRet;
}


/* helper to freeSelectors(), used with llExecFunc() to flush 
 * pending output.  -- rgerhards, 2007-08-02
 */
DEFFUNC_llExecFunc(freeSelectorsActions)
{
	action_t *pAction = (action_t*) pData;

	assert(pAction != NULL);

	/* flush any pending output */
	if(pAction->f_prevcount) {
		fprintlog(pAction);
	}

	return RS_RET_OK; /* never fails ;) */
}


/*  Close all open log files and free selector descriptor array.
 */
static void freeSelectors(void)
{
	selector_t *f;
	selector_t *fPrev;

	if(Files != NULL) {
		dprintf("Freeing log structures.\n");

		/* just in case, we flush the emergency log. If error messages occur after
		 * this stage, we loose them, but that's ok. With multi-threading, this can
		 * never happen.  -- rgerhards, 2007-08-03
		 */
		processImInternal();

		/* we need first to flush, then wait for all messages to be processed
		 * (stopWoker() does that), then we can free the structures.
		 */
		for(f = Files ; f != NULL ; f = f->f_next) {
			llExecFunc(&f->llActList, freeSelectorsActions, NULL);
		}

#		ifdef USE_PTHREADS
		stopWorker();
#		endif

		f = Files;
		while (f != NULL) {
			fPrev = f;
			f = f->f_next;
			selectorDestruct(fPrev);
		}

		/* Reflect the deletion of the selectors linked list. */
		Files = NULL;
		Initialized = 0;
	}
}


/* helper to dbPrintInitInfo, to print out all actions via
 * the llExecFunc() facility.
 * rgerhards, 2007-08-02
 */
DEFFUNC_llExecFunc(dbgPrintInitInfoAction)
{
	DEFiRet;
	iRet = actionDbgPrint((action_t*) pData);
	printf("\n");

	return iRet;
}

/* print debug information as part of init(). This pretty much
 * outputs the whole config of rsyslogd. I've moved this code
 * out of init() to clean it somewhat up.
 * rgerhards, 2007-07-31
 */
static void dbgPrintInitInfo(void)
{
	register selector_t *f;
	int iSelNbr = 1;
	int i;

	printf("\nActive selectors:\n");
	for (f = Files; f != NULL ; f = f->f_next) {
		printf("Selector %d:\n", iSelNbr++);
		if(f->pCSProgNameComp != NULL)
			printf("tag: '%s'\n", rsCStrGetSzStr(f->pCSProgNameComp));
		if(f->eHostnameCmpMode != HN_NO_COMP)
			printf("hostname: %s '%s'\n",
				f->eHostnameCmpMode == HN_COMP_MATCH ?
					"only" : "allbut",
				rsCStrGetSzStr(f->pCSHostnameComp));
		if(f->f_filter_type == FILTER_PRI) {
			for (i = 0; i <= LOG_NFACILITIES; i++)
				if (f->f_filterData.f_pmask[i] == TABLE_NOPRI)
					printf(" X ");
				else
					printf("%2X ", f->f_filterData.f_pmask[i]);
		} else {
			printf("PROPERTY-BASED Filter:\n");
			printf("\tProperty.: '%s'\n",
			       rsCStrGetSzStr(f->f_filterData.prop.pCSPropName));
			printf("\tOperation: ");
			if(f->f_filterData.prop.isNegated)
				printf("NOT ");
			printf("'%s'\n", getFIOPName(f->f_filterData.prop.operation));
			printf("\tValue....: '%s'\n",
			       rsCStrGetSzStr(f->f_filterData.prop.pCSCompValue));
			printf("\tAction...: ");
		}

		printf("\nActions:\n");
		llExecFunc(&f->llActList, dbgPrintInitInfoAction, NULL); /* actions */

		printf("\n");
	}
	printf("\n");
	if(bDebugPrintTemplateList)
		tplPrintList();
	if(bDebugPrintModuleList)
		modPrintList();
	ochPrintList();

	if(bDebugPrintCfSysLineHandlerList)
		dbgPrintCfSysLineHandlers();

#ifdef	SYSLOG_INET
	/* now the allowedSender lists: */
	PrintAllowedSenders(1); /* UDP */
	PrintAllowedSenders(2); /* TCP */
	printf("\n");
#endif 	/* #ifdef SYSLOG_INET */

	printf("Messages with malicious PTR DNS Records are %sdropped.\n",
		bDropMalPTRMsgs	? "" : "not ");

	printf("Control characters are %sreplaced upon reception.\n",
			bEscapeCCOnRcv? "" : "not ");

	if(bEscapeCCOnRcv)
		printf("Control character escape sequence prefix is '%c'.\n",
			cCCEscapeChar);

#ifdef	USE_PTHREADS
	printf("Main queue size %d messages.\n", iMainMsgQueueSize);
#endif
}


/* process a configuration file
 * started with code from init() by rgerhards on 2007-07-31
 */
static rsRetVal processConfFile(uchar *pConfFile)
{
	DEFiRet;
	int iLnNbr = 0;
	FILE *cf;
	selector_t *fCurr = NULL;
	uchar *p;
#ifdef CONT_LINE
	uchar cbuf[BUFSIZ];
	uchar *cline;
#else
	uchar cline[BUFSIZ];
#endif
	assert(pConfFile != NULL);

	if((cf = fopen((char*)pConfFile, "r")) == NULL) {
		ABORT_FINALIZE(RS_RET_FOPEN_FAILURE);
	}

	/* Now process the file.
	 */
#if CONT_LINE
	cline = cbuf;
	while (fgets((char*)cline, sizeof(cbuf) - (cline - cbuf), cf) != NULL) {
#else
	while (fgets(cline, sizeof(cline), cf) != NULL) {
#endif
		++iLnNbr;
		/* drop LF - TODO: make it better, replace fgets(), but its clean as it is */
		if(cline[strlen((char*)cline)-1] == '\n') {
			cline[strlen((char*)cline) -1] = '\0';
		}
		/* check for end-of-section, comments, strip off trailing
		 * spaces and newline character.
		 */
		p = cline;
		skipWhiteSpace(&p);
		if (*p == '\0' || *p == '#')
			continue;

#if CONT_LINE
		strcpy((char*)cline, (char*)p);
#endif
		for (p = (uchar*) strchr((char*)cline, '\0'); isspace((int) *--p););
#if CONT_LINE
		if (*p == '\\') {
			if ((p - cbuf) > BUFSIZ - 30) {
				/* Oops the buffer is full - what now? */
				cline = cbuf;
			} else {
				*p = 0;
				cline = p;
				continue;
			}
		}  else
			cline = cbuf;
#endif
		*++p = '\0'; // TODO: check this

		/* we now have the complete line, and are positioned at the first non-whitespace
		 * character. So let's process it
		 */
#if CONT_LINE
		if(cfline(cbuf, &fCurr) != RS_RET_OK) {
#else
		if(cfline((uchar*)cline, &fCurr) != RS_RET_OK) {
#endif
			/* we log a message, but otherwise ignore the error. After all, the next
			 * line can be correct.  -- rgerhards, 2007-08-02
			 */
			uchar szErrLoc[MAXFNAME + 64];
			dprintf("config line NOT successfully processed\n");
			snprintf((char*)szErrLoc, sizeof(szErrLoc) / sizeof(uchar),
				 "%s, line %d", pConfFile, iLnNbr);
			logerrorSz("the last error occured in %s", (char*)szErrLoc);
		}
	}

	/* we probably have one selector left to be added - so let's do that now */
	CHKiRet(selectorAddList(fCurr));

	/* close the configuration file */
	(void) fclose(cf);

finalize_it:
	if(iRet != RS_RET_OK) {
		if(fCurr != NULL)
			selectorDestruct(fCurr);
		dprintf("error %d processing config file '%s'; os error (if any): %s\n",
			iRet, pConfFile, strerror(errno));
	}
	return iRet;
}


/* INIT -- Initialize syslogd from configuration table
 * init() is called at initial startup AND each time syslogd is HUPed
 */
static void init(void)
{
	DEFiRet;
	register int i;
#ifdef CONT_LINE
	char cbuf[BUFSIZ];
#else
	char cline[BUFSIZ];
#endif
	char bufStartUpMsg[512];
	struct servent *sp;

	/* initialize some static variables */
	pDfltHostnameCmp = NULL;
	pDfltProgNameCmp = NULL;
	eDfltHostnameCmpMode = HN_NO_COMP;
	Forwarding = 0;

#ifdef SYSLOG_INET
	if (restart) {
		if (pAllowedSenders_UDP != NULL) {
			clearAllowedSenders (pAllowedSenders_UDP);
			pAllowedSenders_UDP = NULL;
		}
		
		if (pAllowedSenders_TCP != NULL) {
			clearAllowedSenders (pAllowedSenders_TCP);
			pAllowedSenders_TCP = NULL;
		}
	}

	assert (pAllowedSenders_UDP == NULL &&
		pAllowedSenders_TCP == NULL );
#endif
	/* I was told by an IPv6 expert that calling getservbyname() seems to be
	 * still valid, at least for the use case we have. So I re-enabled that
	 * code. rgerhards, 2007-07-02
	 */
        if(!strcmp(LogPort, "0")) {
                /* we shall use the default syslog/udp port, so let's
                 * look it up.
                 */
                sp = getservbyname("syslog", "udp");
                if (sp == NULL) {
                        errno = 0;
                        logerror("Could not find syslog/udp port in /etc/services. "
                                 "Now using IANA-assigned default of 514.");
                        LogPort = "514";
                } else {
			/* we can dynamically allocate memory here and do NOT need
			 * to care about freeing it because even though init() is
			 * called on each restart, the LogPort can never again be
			 * "0". So we will only once run into this part of the code
			 * here. rgerhards, 2007-07-02
			 * We save ourselfs the hassle of dynamic memory management
			 * for the very same reason.
			 */
			static char defPort[8];
			snprintf(defPort, sizeof(defPort) * sizeof(char), "%d", ntohs(sp->s_port));
                        LogPort = defPort;
		}
        }

	dprintf("Called init.\n");

	/*  Close all open log files and free log descriptor array. */
	freeSelectors();

	dprintf("Clearing templates.\n");
	tplDeleteNew();

#ifdef	USE_PTHREADS
	if(pMsgQueue != NULL) {
		dprintf("deleting message queue\n");
		queueDelete(pMsgQueue); /* delete fifo here! */
		pMsgQueue = NULL;
	}
#endif
	
	
	/* re-setting values to defaults (where applicable) */
	/* TODO: once we have loadable modules, we must re-visit this code. The reason is
	 * that config variables are not re-set, because the module is not yet loaded. On
	 * the other hand, that doesn't matter, because the module got unloaded and is then
	 * re-loaded, so the variables should be re-set via that way. In any case, we should
	 * think about the whole situation when we implement loadable plugins.
	 * rgerhards, 2007-07-31
	 */
	cfsysline((uchar*)"ResetConfigVariables");

	/* open the configuration file */
	if((iRet = processConfFile(ConfFile)) != RS_RET_OK) {
		/* rgerhards: this code is executed to set defaults when the
		 * config file could not be opened. We might think about
		 * abandoning the run in this case - but this, too, is not
		 * very clever... So we stick with what we have.
		 * We ignore any errors while doing this - we would be lost anyhow...
		 */
		selector_t *f = NULL;
		char *pTTY = ttyname(0);
		dprintf("primary config file could not be opened - using emergency definitions.\n");
		cfline((uchar*)"*.ERR\t" _PATH_CONSOLE, &f);
		cfline((uchar*)"*.PANIC\t*", &f);
		if(pTTY != NULL) {
			snprintf(cbuf,sizeof(cbuf), "*.*\t%s", pTTY);
			cfline((uchar*)cbuf, &f);
		}
		selectorAddList(f);
	}

	/* we are now done with reading the configuration. This is the right time to
	 * free some objects that were just needed for loading it. rgerhards 2005-10-19
	 */
	if(pDfltHostnameCmp != NULL) {
		rsCStrDestruct(pDfltHostnameCmp);
		pDfltHostnameCmp = NULL;
	}

	if(pDfltProgNameCmp != NULL) {
		rsCStrDestruct(pDfltProgNameCmp);
		pDfltProgNameCmp = NULL;
	}

#ifdef SYSLOG_UNIXAF
	for (i = startIndexUxLocalSockets ; i < nfunix ; i++) {
		if (funix[i] != -1)
			/* Don't close the socket, preserve it instead
			close(funix[i]);
			*/
			continue;
		if ((funix[i] = create_unix_socket(funixn[i])) != -1)
			dprintf("Opened UNIX socket `%s' (fd %d).\n", funixn[i], funix[i]);
	}
#endif

#ifdef SYSLOG_INET
	/* I have moved initializing UDP sockets before the TCP sockets. This ensures
	 * they are as soon ready for reception as possible. Of course, it is only a 
	 * very small window of exposure, but it doesn't hurt to limit the message
	 * loss risk to as low as possible - especially if it costs nothing...
	 * rgerhards, 2007-06-28
	 */
	if(Forwarding || AcceptRemote) {
		if (finet == NULL) {
			if((finet = create_udp_socket()) != NULL)
				dprintf("Opened %d syslog UDP port(s).\n", *finet);
		}
	}
	else {
		/* this case can happen during HUP processing. */
		closeUDPListenSockets();
	}

	if (bEnableTCP) {
		if(sockTCPLstn == NULL) {
			/* even when doing a re-init, we do not shut down and
			 * re-open the TCP socket. That would break existing TCP
			 * session, which we do not desire. Should at some time arise
			 * need to do that, I recommend controlling that via a
			 * user-selectable option. rgerhards, 2007-06-21
			 */
			if((sockTCPLstn = create_tcp_socket()) != NULL) {
				dprintf("Opened %d syslog TCP port(s).\n", *sockTCPLstn);
			}
		}
	}
#endif

#	ifdef USE_PTHREADS
	/* create message queue */
	pMsgQueue = queueInit();
	if(pMsgQueue == NULL) {
		errno = 0;
		logerror("error: could not create message queue - running single-threaded!\n");
	}

	startWorker();
#	endif

	Initialized = 1;

	if(Debug) {
		dbgPrintInitInfo();
	}

	/* we now generate the startup message. It now includes everything to
	 * identify this instance. -- rgerhards, 2005-08-17
	 */
	snprintf(bufStartUpMsg, sizeof(bufStartUpMsg)/sizeof(char), 
		 " [origin software=\"rsyslogd\" " "swVersion=\"" VERSION \
		 "\" x-pid=\"%d\"][x-configInfo udpReception=\"%s\" " \
		 "udpPort=\"%s\" tcpReception=\"%s\" tcpPort=\"%s\"]" \
		 " restart",
		 (int) myPid,
#ifdef	SYSLOG_INET
		 AcceptRemote ? "Yes" : "No", LogPort,
		 bEnableTCP   ? "Yes" : "No", TCPLstnPort
#else
		"No", "0", "No", "0"
#endif 	/* #ifdef SYSLOG_INET */
		);
	logmsgInternal(LOG_SYSLOG|LOG_INFO, bufStartUpMsg, ADDDATE);

	(void) signal(SIGHUP, sighup_handler);
	dprintf(" restarted.\n");
}


/* Helper to cfline() and its helpers. Parses a template name
 * from an "action" line. Must be called with the Line pointer
 * pointing to the first character after the semicolon.
 * rgerhards 2004-11-19
 * changed function to work with OMSR. -- rgerhards, 2007-07-27
 * the default template is to be used when no template is specified.
 */
rsRetVal cflineParseTemplateName(uchar** pp, omodStringRequest_t *pOMSR, int iEntry, int iTplOpts, uchar *dfltTplName)
{
	uchar *p;
	uchar *tplName;
	DEFiRet;
	rsCStrObj *pStrB;

	assert(pp != NULL);
	assert(*pp != NULL);
	assert(pOMSR != NULL);

	p =*pp;
	/* a template must follow - search it and complain, if not found
	 */
	skipWhiteSpace(&p);
	if(*p == ';')
		++p; /* eat it */
	else if(*p != '\0' && *p != '#') {
		logerror("invalid character in selector line - ';template' expected");
		iRet = RS_RET_ERR;
		goto finalize_it;
	}

	skipWhiteSpace(&p); /* go to begin of template name */

	if(*p == '\0') {
		/* no template specified, use the default */
		/* TODO: check NULL ptr */
		tplName = (uchar*) strdup((char*)dfltTplName);
	} else {
		/* template specified, pick it up */
		if((pStrB = rsCStrConstruct()) == NULL) {
			glblHadMemShortage = 1;
			iRet = RS_RET_OUT_OF_MEMORY;
			goto finalize_it;
		}

		/* now copy the string */
		while(*p && *p != '#' && !isspace((int) *p)) {
			if((iRet = rsCStrAppendChar(pStrB, *p)) != RS_RET_OK) goto finalize_it;
			++p;
		}
		if((iRet = rsCStrFinish(pStrB)) != RS_RET_OK) goto finalize_it;
		tplName = rsCStrConvSzStrAndDestruct(pStrB);
	}

	iRet = OMSRsetEntry(pOMSR, iEntry, tplName, iTplOpts);
	if(iRet != RS_RET_OK) goto finalize_it;

finalize_it:
	*pp = p;

	return iRet;
}

/* Helper to cfline(). Parses a file name up until the first
 * comma and then looks for the template specifier. Tries
 * to find that template.
 * rgerhards 2004-11-18
 * parameter pFileName must point to a buffer large enough
 * to hold the largest possible filename.
 * rgerhards, 2007-07-25
 * updated to include OMSR pointer -- rgerhards, 2007-07-27
 */
rsRetVal cflineParseFileName(uchar* p, uchar *pFileName, omodStringRequest_t *pOMSR, int iEntry, int iTplOpts)
{
	register uchar *pName;
	int i;
	DEFiRet;

	assert(pOMSR != NULL);

	pName = pFileName;
	i = 1; /* we start at 1 so that we reseve space for the '\0'! */
	while(*p && *p != ';' && i < MAXFNAME) {
		*pName++ = *p++;
		++i;
	}
	*pName = '\0';

	iRet = cflineParseTemplateName(&p, pOMSR, iEntry, iTplOpts, (uchar*) " TradFmt");

	return iRet;
}


/*
 * Helper to cfline(). This function takes the filter part of a traditional, PRI
 * based line and decodes the PRIs given in the selector line. It processed the
 * line up to the beginning of the action part. A pointer to that beginnig is
 * passed back to the caller.
 * rgerhards 2005-09-15
 */
static rsRetVal cflineProcessTradPRIFilter(uchar **pline, register selector_t *f)
{
	uchar *p;
	register uchar *q;
	register int i, i2;
	uchar *bp;
	int pri;
	int singlpri = 0;
	int ignorepri = 0;
	uchar buf[MAXLINE];
	uchar xbuf[200];

	assert(pline != NULL);
	assert(*pline != NULL);
	assert(f != NULL);

	dprintf(" - traditional PRI filter\n");
	errno = 0;	/* keep strerror() stuff out of logerror messages */

	f->f_filter_type = FILTER_PRI;
	/* Note: file structure is pre-initialized to zero because it was
	 * created with calloc()!
	 */
	for (i = 0; i <= LOG_NFACILITIES; i++) {
		f->f_filterData.f_pmask[i] = TABLE_NOPRI;
	}

	/* scan through the list of selectors */
	for (p = *pline; *p && *p != '\t' && *p != ' ';) {

		/* find the end of this facility name list */
		for (q = p; *q && *q != '\t' && *q++ != '.'; )
			continue;

		/* collect priority name */
		for (bp = buf; *q && !strchr("\t ,;", *q); )
			*bp++ = *q++;
		*bp = '\0';

		/* skip cruft */
		while (strchr(",;", *q))
			q++;

		/* decode priority name */
		if ( *buf == '!' ) {
			ignorepri = 1;
			for (bp=buf; *(bp+1); bp++)
				*bp=*(bp+1);
			*bp='\0';
		}
		else {
			ignorepri = 0;
		}
		if ( *buf == '=' )
		{
			singlpri = 1;
			pri = decode(&buf[1], PriNames);
		}
		else {
		        singlpri = 0;
			pri = decode(buf, PriNames);
		}

		if (pri < 0) {
			snprintf((char*) xbuf, sizeof(xbuf), "unknown priority name \"%s\"", buf);
			logerror((char*) xbuf);
			return RS_RET_ERR;
		}

		/* scan facilities */
		while (*p && !strchr("\t .;", *p)) {
			for (bp = buf; *p && !strchr("\t ,;.", *p); )
				*bp++ = *p++;
			*bp = '\0';
			if (*buf == '*') {
				for (i = 0; i <= LOG_NFACILITIES; i++) {
					if ( pri == INTERNAL_NOPRI ) {
						if ( ignorepri )
							f->f_filterData.f_pmask[i] = TABLE_ALLPRI;
						else
							f->f_filterData.f_pmask[i] = TABLE_NOPRI;
					}
					else if ( singlpri ) {
						if ( ignorepri )
				  			f->f_filterData.f_pmask[i] &= ~(1<<pri);
						else
				  			f->f_filterData.f_pmask[i] |= (1<<pri);
					}
					else
					{
						if ( pri == TABLE_ALLPRI ) {
							if ( ignorepri )
								f->f_filterData.f_pmask[i] = TABLE_NOPRI;
							else
								f->f_filterData.f_pmask[i] = TABLE_ALLPRI;
						}
						else
						{
							if ( ignorepri )
								for (i2= 0; i2 <= pri; ++i2)
									f->f_filterData.f_pmask[i] &= ~(1<<i2);
							else
								for (i2= 0; i2 <= pri; ++i2)
									f->f_filterData.f_pmask[i] |= (1<<i2);
						}
					}
				}
			} else {
				i = decode(buf, FacNames);
				if (i < 0) {

					snprintf((char*) xbuf, sizeof(xbuf), "unknown facility name \"%s\"", buf);
					logerror((char*) xbuf);
					return RS_RET_ERR;
				}

				if ( pri == INTERNAL_NOPRI ) {
					if ( ignorepri )
						f->f_filterData.f_pmask[i >> 3] = TABLE_ALLPRI;
					else
						f->f_filterData.f_pmask[i >> 3] = TABLE_NOPRI;
				} else if ( singlpri ) {
					if ( ignorepri )
						f->f_filterData.f_pmask[i >> 3] &= ~(1<<pri);
					else
						f->f_filterData.f_pmask[i >> 3] |= (1<<pri);
				} else {
					if ( pri == TABLE_ALLPRI ) {
						if ( ignorepri )
							f->f_filterData.f_pmask[i >> 3] = TABLE_NOPRI;
						else
							f->f_filterData.f_pmask[i >> 3] = TABLE_ALLPRI;
					} else {
						if ( ignorepri )
							for (i2= 0; i2 <= pri; ++i2)
								f->f_filterData.f_pmask[i >> 3] &= ~(1<<i2);
						else
							for (i2= 0; i2 <= pri; ++i2)
								f->f_filterData.f_pmask[i >> 3] |= (1<<i2);
					}
				}
			}
			while (*p == ',' || *p == ' ')
				p++;
		}

		p = q;
	}

	/* skip to action part */
	while (*p == '\t' || *p == ' ')
		p++;

	*pline = p;
	return RS_RET_OK;
}


/*
 * Helper to cfline(). This function takes the filter part of a property
 * based filter and decodes it. It processes the line up to the beginning
 * of the action part. A pointer to that beginnig is passed back to the caller.
 * rgerhards 2005-09-15
 */
static rsRetVal cflineProcessPropFilter(uchar **pline, register selector_t *f)
{
	rsParsObj *pPars;
	rsCStrObj *pCSCompOp;
	rsRetVal iRet;
	int iOffset; /* for compare operations */

	assert(pline != NULL);
	assert(*pline != NULL);
	assert(f != NULL);

	dprintf(" - property-based filter\n");
	errno = 0;	/* keep strerror() stuff out of logerror messages */

	f->f_filter_type = FILTER_PROP;

	/* create parser object starting with line string without leading colon */
	if((iRet = rsParsConstructFromSz(&pPars, (*pline)+1)) != RS_RET_OK) {
		logerrorInt("Error %d constructing parser object - ignoring selector", iRet);
		return(iRet);
	}

	/* read property */
	iRet = parsDelimCStr(pPars, &f->f_filterData.prop.pCSPropName, ',', 1, 1);
	if(iRet != RS_RET_OK) {
		logerrorInt("error %d parsing filter property - ignoring selector", iRet);
		rsParsDestruct(pPars);
		return(iRet);
	}

	/* read operation */
	iRet = parsDelimCStr(pPars, &pCSCompOp, ',', 1, 1);
	if(iRet != RS_RET_OK) {
		logerrorInt("error %d compare operation property - ignoring selector", iRet);
		rsParsDestruct(pPars);
		return(iRet);
	}

	/* we now first check if the condition is to be negated. To do so, we first
	 * must make sure we have at least one char in the param and then check the
	 * first one.
	 * rgerhards, 2005-09-26
	 */
	if(rsCStrLen(pCSCompOp) > 0) {
		if(*rsCStrGetBufBeg(pCSCompOp) == '!') {
			f->f_filterData.prop.isNegated = 1;
			iOffset = 1; /* ignore '!' */
		} else {
			f->f_filterData.prop.isNegated = 0;
			iOffset = 0;
		}
	} else {
		f->f_filterData.prop.isNegated = 0;
		iOffset = 0;
	}

	if(!rsCStrOffsetSzStrCmp(pCSCompOp, iOffset, (uchar*) "contains", 8)) {
		f->f_filterData.prop.operation = FIOP_CONTAINS;
	} else if(!rsCStrOffsetSzStrCmp(pCSCompOp, iOffset, (uchar*) "isequal", 7)) {
		f->f_filterData.prop.operation = FIOP_ISEQUAL;
	} else if(!rsCStrOffsetSzStrCmp(pCSCompOp, iOffset, (uchar*) "startswith", 10)) {
		f->f_filterData.prop.operation = FIOP_STARTSWITH;
	} else if(!rsCStrOffsetSzStrCmp(pCSCompOp, iOffset, (unsigned char*) "regex", 5)) {
		f->f_filterData.prop.operation = FIOP_REGEX;
	} else {
		logerrorSz("error: invalid compare operation '%s' - ignoring selector",
		           (char*) rsCStrGetSzStr(pCSCompOp));
	}
	rsCStrDestruct (pCSCompOp); /* no longer needed */

	/* read compare value */
	iRet = parsQuotedCStr(pPars, &f->f_filterData.prop.pCSCompValue);
	if(iRet != RS_RET_OK) {
		logerrorInt("error %d compare value property - ignoring selector", iRet);
		rsParsDestruct(pPars);
		return(iRet);
	}

	/* skip to action part */
	if((iRet = parsSkipWhitespace(pPars)) != RS_RET_OK) {
		logerrorInt("error %d skipping to action part - ignoring selector", iRet);
		rsParsDestruct(pPars);
		return(iRet);
	}

	/* cleanup */
	*pline = *pline + rsParsGetParsePointer(pPars) + 1;
		/* we are adding one for the skipped initial ":" */

	return rsParsDestruct(pPars);
}


/*
 * Helper to cfline(). This function interprets a BSD host selector line
 * from the config file ("+/-hostname"). It stores it for further reference.
 * rgerhards 2005-10-19
 */
static rsRetVal cflineProcessHostSelector(uchar **pline)
{
	rsRetVal iRet;

	assert(pline != NULL);
	assert(*pline != NULL);
	assert(**pline == '-' || **pline == '+');

	dprintf(" - host selector line\n");

	/* check include/exclude setting */
	if(**pline == '+') {
		eDfltHostnameCmpMode = HN_COMP_MATCH;
	} else { /* we do not check for '-', it must be, else we wouldn't be here */
		eDfltHostnameCmpMode = HN_COMP_NOMATCH;
	}
	(*pline)++;	/* eat + or - */

	/* the below is somewhat of a quick hack, but it is efficient (this is
	 * why it is in here. "+*" resets the tag selector with BSD syslog. We mimic
	 * this, too. As it is easy to check that condition, we do not fire up a
	 * parser process, just make sure we do not address beyond our space.
	 * Order of conditions in the if-statement is vital! rgerhards 2005-10-18
	 */
	if(**pline != '\0' && **pline == '*' && *(*pline+1) == '\0') {
		dprintf("resetting BSD-like hostname filter\n");
		eDfltHostnameCmpMode = HN_NO_COMP;
		if(pDfltHostnameCmp != NULL) {
			if((iRet = rsCStrSetSzStr(pDfltHostnameCmp, NULL)) != RS_RET_OK)
				return(iRet);
			pDfltHostnameCmp = NULL;
		}
	} else {
		dprintf("setting BSD-like hostname filter to '%s'\n", *pline);
		if(pDfltHostnameCmp == NULL) {
			/* create string for parser */
			if((iRet = rsCStrConstructFromszStr(&pDfltHostnameCmp, *pline)) != RS_RET_OK)
				return(iRet);
		} else { /* string objects exists, just update... */
			if((iRet = rsCStrSetSzStr(pDfltHostnameCmp, *pline)) != RS_RET_OK)
				return(iRet);
		}
	}
	return RS_RET_OK;
}


/*
 * Helper to cfline(). This function interprets a BSD tag selector line
 * from the config file ("!tagname"). It stores it for further reference.
 * rgerhards 2005-10-18
 */
static rsRetVal cflineProcessTagSelector(uchar **pline)
{
	rsRetVal iRet;

	assert(pline != NULL);
	assert(*pline != NULL);
	assert(**pline == '!');

	dprintf(" - programname selector line\n");

	(*pline)++;	/* eat '!' */

	/* the below is somewhat of a quick hack, but it is efficient (this is
	 * why it is in here. "!*" resets the tag selector with BSD syslog. We mimic
	 * this, too. As it is easy to check that condition, we do not fire up a
	 * parser process, just make sure we do not address beyond our space.
	 * Order of conditions in the if-statement is vital! rgerhards 2005-10-18
	 */
	if(**pline != '\0' && **pline == '*' && *(*pline+1) == '\0') {
		dprintf("resetting programname filter\n");
		if(pDfltProgNameCmp != NULL) {
			if((iRet = rsCStrSetSzStr(pDfltProgNameCmp, NULL)) != RS_RET_OK)
				return(iRet);
			pDfltProgNameCmp = NULL;
		}
	} else {
		dprintf("setting programname filter to '%s'\n", *pline);
		if(pDfltProgNameCmp == NULL) {
			/* create string for parser */
			if((iRet = rsCStrConstructFromszStr(&pDfltProgNameCmp, *pline)) != RS_RET_OK)
				return(iRet);
		} else { /* string objects exists, just update... */
			if((iRet = rsCStrSetSzStr(pDfltProgNameCmp, *pline)) != RS_RET_OK)
				return(iRet);
		}
	}
	return RS_RET_OK;
}


/* add an Action to the current selector
 * The pOMSR is freed, as it is not needed after this function.
 * Note: this function pulls global data that specifies action config state.
 * rgerhards, 2007-07-27
 */
rsRetVal addAction(action_t **ppAction, modInfo_t *pMod, void *pModData, omodStringRequest_t *pOMSR, int bSuspended)
{
	DEFiRet;
	int i;
	int iTplOpts;
	uchar *pTplName;
	action_t *pAction;
	char errMsg[512];

	assert(ppAction != NULL);
	assert(pMod != NULL);
	assert(pOMSR != NULL);
	dprintf("Module %s processed this config line.\n", modGetName(pMod));

	CHKiRet(actionConstruct(&pAction)); /* create action object first */
	pAction->pMod = pMod;
	pAction->pModData = pModData;
	pAction->bExecWhenPrevSusp = bActExecWhenPrevSusp;

	/* check if we can obtain the template pointers - TODO: move to separat function? */
	pAction->iNumTpls = OMSRgetEntryCount(pOMSR);
	assert(pAction->iNumTpls >= 0); /* only debug check because this "can not happen" */
	/* please note: iNumTpls may validly be zero. This is the case if the module
	 * does not request any templates. This sounds unlikely, but an actual example is
	 * the discard action, which does not require a string. -- rgerhards, 2007-07-30
	 */
	if(pAction->iNumTpls > 0) {
		/* we first need to create the template pointer array */
		if((pAction->ppTpl = calloc(pAction->iNumTpls, sizeof(struct template *))) == NULL) {
			iRet = RS_RET_OUT_OF_MEMORY;
			glblHadMemShortage = 1;
			goto finalize_it;
		}
		/* and now the array for doAction() message pointers */
		if((pAction->ppMsgs = calloc(pAction->iNumTpls, sizeof(uchar *))) == NULL) {
			iRet = RS_RET_OUT_OF_MEMORY;
			glblHadMemShortage = 1;
			goto finalize_it;
		}
	}
	
	for(i = 0 ; i < pAction->iNumTpls ; ++i) {
		CHKiRet(OMSRgetEntry(pOMSR, i, &pTplName, &iTplOpts));
		/* Ok, we got everything, so it now is time to look up the
		 * template (Hint: templates MUST be defined before they are
		 * used!)
		 */
		if((pAction->ppTpl[i] = tplFind((char*)pTplName, strlen((char*)pTplName))) == NULL) {
			snprintf(errMsg, sizeof(errMsg) / sizeof(char),
				 " Could not find template '%s' - selector line disabled\n",
				 pTplName);
			errno = 0;
			logerror(errMsg);
			iRet = RS_RET_NOT_FOUND;
			goto finalize_it;
		}
		/* check required template options */
		if(   (iTplOpts & OMSR_RQD_TPL_OPT_SQL)
		   && (pAction->ppTpl[i]->optFormatForSQL == 0)) {
			errno = 0;
			logerror("Selector disabled. To use this action, you have to specify "
				"the SQL or stdSQL option in your template!\n");
			iRet = RS_RET_RQD_TPLOPT_MISSING;
			goto finalize_it;
		}

		dprintf("template: '%s' assgined\n", pTplName);
	}

	pAction->pMod = pMod;
	pAction->pModData = pModData;
	/* now check if the module is compatible with select features */
	if(pMod->isCompatibleWithFeature(sFEATURERepeatedMsgReduction) == RS_RET_OK)
		pAction->f_ReduceRepeated = bReduceRepeatMsgs;
	else {
		dprintf("module is incompatible with RepeatedMsgReduction - turned off\n");
		pAction->f_ReduceRepeated = 0;
	}
	pAction->bEnabled = 1; /* action is enabled */

	if(bSuspended)
		actionSuspend(pAction);

	*ppAction = pAction; /* finally store the action pointer */

finalize_it:
	if(iRet == RS_RET_OK)
		iRet = OMSRdestruct(pOMSR);
	else {
		/* do not overwrite error state! */
		OMSRdestruct(pOMSR);
		if(pAction != NULL)
			actionDestruct(pAction);
	}

	return iRet;
}


/* read the filter part of a configuration line and store the filter
 * in the supplied selector_t
 * rgerhards, 2007-08-01
 */
static rsRetVal cflineDoFilter(uchar **pp, selector_t *f)
{
	DEFiRet;

	assert(pp != NULL);
	assert(f != NULL);

	/* check which filter we need to pull... */
	switch(**pp) {
		case ':':
			iRet = cflineProcessPropFilter(pp, f);
			break;
		default:
			iRet = cflineProcessTradPRIFilter(pp, f);
			break;
	}

	/* we now check if there are some global (BSD-style) filter conditions
	 * and, if so, we copy them over. rgerhards, 2005-10-18
	 */
	if(pDfltProgNameCmp != NULL)
		if((iRet = rsCStrConstructFromCStr(&(f->pCSProgNameComp), pDfltProgNameCmp)) != RS_RET_OK)
			return(iRet);

	if(eDfltHostnameCmpMode != HN_NO_COMP) {
		f->eHostnameCmpMode = eDfltHostnameCmpMode;
		if((iRet = rsCStrConstructFromCStr(&(f->pCSHostnameComp), pDfltHostnameCmp)) != RS_RET_OK)
			return(iRet);
	}

	return iRet;
}


/* process the action part of a selector line
 * rgerhards, 2007-08-01
 */
static rsRetVal cflineDoAction(uchar **p, action_t **ppAction)
{
	DEFiRet;
	modInfo_t *pMod;
	omodStringRequest_t *pOMSR;
	action_t *pAction;
	void *pModData;

	assert(p != NULL);
	assert(ppAction != NULL);

	/* loop through all modules and see if one picks up the line */
	pMod = omodGetNxt(NULL);
	while(pMod != NULL) {
		iRet = pMod->mod.om.parseSelectorAct(p, &pModData, &pOMSR);
		dprintf("tried selector action for %s: %d\n", modGetName(pMod), iRet);
		if(iRet == RS_RET_OK || iRet == RS_RET_SUSPENDED) {
			if((iRet = addAction(&pAction, pMod, pModData, pOMSR, (iRet == RS_RET_SUSPENDED)? 1 : 0)) == RS_RET_OK) {
				/* now check if the module is compatible with select features */
				if(pMod->isCompatibleWithFeature(sFEATURERepeatedMsgReduction) == RS_RET_OK)
					pAction->f_ReduceRepeated = bReduceRepeatMsgs;
				else {
					dprintf("module is incompatible with RepeatedMsgReduction - turned off\n");
					pAction->f_ReduceRepeated = 0;
				}
				pAction->bEnabled = 1; /* action is enabled */
			}
			break;
		}
		else if(iRet != RS_RET_CONFLINE_UNPROCESSED) {
			/* In this case, the module would have handled the config
			 * line, but some error occured while doing so. This error should
			 * already by reported by the module. We do not try any other
			 * modules on this line, because we found the right one.
			 * rgerhards, 2007-07-24
			 */
			dprintf("error %d parsing config line\n", (int) iRet);
			break;
		}
		pMod = omodGetNxt(pMod);
	}

	*ppAction = pAction;
	return iRet;
}


/* helper to selectorAddListCheckActions()
 * This is the fucntion to be executed by llExecFunc
 */
DEFFUNC_llExecFunc(selectorAddListCheckActionsChecker)
{
	DEFiRet;
	action_t *pAction = (action_t *) pData;

	assert(pAction != NULL);

	if(pAction->pMod->needUDPSocket(pAction->pModData) == RS_RET_TRUE) {
		Forwarding++;
	}

	return iRet;
}

/* loop through a list of actions and perform necessary checks and
 * housekeeping. This function must only be called when the owning
 * selector_t looks valid and is not likely to be discarded. However,
 * if we do not return RS_RET_OK, the caller MUST discard the
 * owning selector_t. -- rgerhards, 2007-08-02
*/
static rsRetVal selectorAddListCheckActions(selector_t *f)
{
	DEFiRet;

	assert(f != NULL);

	CHKiRet(llExecFunc(&f->llActList, selectorAddListCheckActionsChecker, NULL));

finalize_it:
	return iRet;
}


/* add a completely-processed selector (after config line parsing) to
 * the linked list of selectors. We now need to check
 * if it has any actions associated and, if so, link it to the linked
 * list. If it has nothing associated with it, we can simply discard
 * it.
 * We have one special case during initialization: then, the current
 * selector is NULL, which means we do not need to care about it at
 * all.  -- rgerhards, 2007-08-01
 */
static rsRetVal selectorAddList(selector_t *f)
{
	DEFiRet;
	int iActionCnt;

	static selector_t *nextp = NULL; /* TODO: make this go away (see comment below) */

	if(f != NULL) {
		CHKiRet(llGetNumElts(&f->llActList, &iActionCnt));
		if(iActionCnt == 0) {
			logerror("warning: selector line without actions will be discarded");
			selectorDestruct(f);
		} else {
			if((iRet = selectorAddListCheckActions(f)) != RS_RET_OK) {
				logerror("selector line will be discarded due to error in action(s)");
				selectorDestruct(f);
				goto finalize_it;
			}
			/* successfully created an entry */
			dprintf("selector line successfully processed\n");
			/* TODO: we should use the linked list class for the selector list, else we need to add globals
			 * ... well nextp could be added temporarily...
			 * Thanks to varmojfekoj for having the idea to just use "Files" to make this
			 * code work. I had actually forgotten to fix the code here before moving to 1.18.0.
			 * And, of course, I also did not migrate the selector_t structure to the linked list class.
			 * However, that should still be one of the very next things to happen.
			 * rgerhards, 2007-08-06
			 */
			if(Files == NULL) {
				Files = f;
			} else {
				nextp->f_next = f;
			}
			nextp = f;
		}
	}

finalize_it:
	return iRet;
}


/* Process a configuration file line in traditional "filter selector" format
 */
static rsRetVal cflineClassic(uchar *p, selector_t **pfCurr)
{
	DEFiRet;
	action_t *pAction;
	selector_t *fCurr;

	assert(pfCurr != NULL);

	fCurr = *pfCurr;

	/* lines starting with '&' have no new filters and just add
	 * new actions to the currently processed selector.
	 */
	if(*p == '&') {
		++p; /* eat '&' */
		skipWhiteSpace(&p); /* on to command */
	} else {
		/* we are finished with the current selector. So we now need to check
		 * if it has any actions associated and, if so, link it to the linked
		 * list. If it has nothing associated with it, we can simply discard
		 * it. In any case, we create a fresh selector for our new filter.
		 * We have one special case during initialization: then, the current
		 * selector is NULL, which means we do not need to care about it at
		 * all.  -- rgerhards, 2007-08-01
		 */
		CHKiRet(selectorAddList(fCurr));
		CHKiRet(selectorConstruct(&fCurr)); /* create "fresh" selector */
		CHKiRet(cflineDoFilter(&p, fCurr)); /* pull filters */
	}

	CHKiRet(cflineDoAction(&p, &pAction));
	CHKiRet(llAppend(&fCurr->llActList,  NULL, (void*) pAction));

finalize_it:
	*pfCurr = fCurr;
	return iRet;
}


/* process a configuration line
 * I re-did this functon because it was desperately time to do so
 * rgerhards, 2007-08-01
 */
static rsRetVal cfline(uchar *line, selector_t **pfCurr)
{
	DEFiRet;

	assert(line != NULL);

	dprintf("cfline: '%s'\n", line);

	/* check type of line and call respective processing */
	switch(*line) {
		case '!':
			iRet = cflineProcessTagSelector(&line);
			break;
		case '+':
		case '-':
			iRet = cflineProcessHostSelector(&line);
			break;
		case '$':
			++line; /* eat '$' */
			iRet = cfsysline(line);
			break;
		default:
			iRet = cflineClassic(line, pfCurr);
			break;
	}

	return iRet;
}


/*  Decode a symbolic name to a numeric value
 */
int decode(uchar *name, struct code *codetab)
{
	register struct code *c;
	register uchar *p;
	uchar buf[80];

	assert(name != NULL);
	assert(codetab != NULL);

	dprintf ("symbolic name: %s", name);
	if (isdigit((int) *name))
	{
		dprintf ("\n");
		return (atoi((char*) name));
	}
	strncpy((char*) buf, (char*) name, 79);
	for (p = buf; *p; p++)
		if (isupper((int) *p))
			*p = tolower((int) *p);
	for (c = codetab; c->c_name; c++)
		if (!strcmp((char*) buf, (char*) c->c_name))
		{
			dprintf (" ==> %d\n", c->c_val);
			return (c->c_val);
		}
	return (-1);
}

extern void dprintf(char *fmt, ...) __attribute__((format(printf,1, 2)));
void dprintf(char *fmt, ...)
{
#	ifdef USE_PTHREADS
	static int bWasNL = FALSE;
#	endif
	va_list ap;

	if ( !(Debug && debugging_on) )
		return;
	
#	ifdef USE_PTHREADS
	/* The bWasNL handler does not really work. It works if no thread
	 * switching occurs during non-NL messages. Else, things are messed
	 * up. Anyhow, it works well enough to provide useful help during
	 * getting this up and running. It is questionable if the extra effort
	 * is worth fixing it, giving the limited appliability.
	 * rgerhards, 2005-10-25
	 * I have decided that it is not worth fixing it - especially as it works
	 * pretty well.
	 * rgerhards, 2007-06-15
	 */
	if(bWasNL) {
		fprintf(stdout, "%8.8d: ", (unsigned int) pthread_self());
	}
	bWasNL = (*(fmt + strlen(fmt) - 1) == '\n') ? TRUE : FALSE;
#	endif
	va_start(ap, fmt);
	vfprintf(stdout, fmt, ap);
	va_end(ap);

	fflush(stdout);
	return;
}


/*
 * The following function is resposible for handling a SIGHUP signal.  Since
 * we are now doing mallocs/free as part of init we had better not being
 * doing this during a signal handler.  Instead this function simply sets
 * a flag variable which will tell the main loop to go through a restart.
 */
void sighup_handler()
{
	restart = 1;
	signal(SIGHUP, sighup_handler);
	return;
}


/**
 * getSubString
 *
 * Copy a string byte by byte until the occurrence  
 * of a given separator.
 *
 * \param ppSrc		Pointer to a pointer of the source array of characters. If a
			separator detected the Pointer points to the next char after the
			separator. Except if the end of the string is dedected ('\n'). 
			Then it points to the terminator char. 
 * \param pDst		Pointer to the destination array of characters. Here the substing
			will be stored.
 * \param DstSize	Maximum numbers of characters to store.
 * \param cSep		Separator char.
 * \ret int		Returns 0 if no error occured.
 */
int getSubString(uchar **ppSrc,  char *pDst, size_t DstSize, char cSep)
{
	uchar *pSrc = *ppSrc;
	int iErr = 0; /* 0 = no error, >0 = error */
	while(*pSrc != cSep && *pSrc != '\n' && *pSrc != '\0' && DstSize>1) {
		*pDst++ = *(pSrc)++;
		DstSize--;
	}
	/* check if the Dst buffer was to small */
	if (*pSrc != cSep && *pSrc != '\n' && *pSrc != '\0')
	{ 
		dprintf("in getSubString, error Src buffer > Dst buffer\n");
		iErr = 1;
	}	
	if (*pSrc == '\0' || *pSrc == '\n')
		/* this line was missing, causing ppSrc to be invalid when it
		 * was returned in case of end-of-string. rgerhards 2005-07-29
		 */
		*ppSrc = pSrc;
	else
		*ppSrc = pSrc+1;
	*pDst = '\0';
	return iErr;
}


/* print out which socket we are listening on. This is only
 * a debug aid. rgerhards, 2007-07-02
 */
static void debugListenInfo(int fd, char *type)
{
	char *szFamily;
	int port;
	struct sockaddr sa;
	struct sockaddr_in *ipv4;
	struct sockaddr_in6 *ipv6;
	socklen_t saLen = sizeof(sa);

	if(getsockname(fd, &sa, &saLen) == 0) {
		switch(sa.sa_family) {
		case PF_INET:
			szFamily = "IPv4";
			ipv4 = (struct sockaddr_in*) &sa;
			port = ntohs(ipv4->sin_port);
			break;
		case PF_INET6:
			szFamily = "IPv6";
			ipv6 = (struct sockaddr_in6*) &sa;
			port = ntohs(ipv6->sin6_port);
			break;
		default:
			szFamily = "other";
			port = -1;
			break;
		}
		dprintf("Listening on %s syslogd socket %d (%s/port %d).\n",
			type, fd, szFamily, port);
		return;
	}

	/* we can not obtain peer info. We are just providing
	 * debug info, so this is no reason to break the program
	 * or do any serious error reporting.
	 */
	dprintf("Listening on syslogd socket %d - could not obtain peer info.\n", fd);
}


/* this function pulls all internal messages from the buffer
 * and puts them into the processing engine.
 * We can only do limited error handling, as this would not
 * really help us. TODO: add error messages?
 * rgerhards, 2007-08-03
 */
static void processImInternal(void)
{
	int iPri;
	int iFlags;
	msg_t *pMsg;

	while(iminternalRemoveMsg(&iPri, &pMsg, &iFlags) == RS_RET_OK) {
		logmsg(iPri, pMsg, iFlags);
		MsgDestruct(pMsg);
	}
}


/* helper function for mainloop(). This is used to add all module
 * writeFDsfor Select via llExecFunc().
 * rgerhards, 2007-08-02
 */
typedef struct selectHelperWriteFDSInfo_s { /* struct for pParam */
	fd_set *pWritefds;
	int *pMaxfds;
} selectHelperWriteFDSInfo_t;
DEFFUNC_llExecFunc(mainloopAddModWriteFDSforSelect)
{
	DEFiRet;
	action_t *pAction = (action_t*) pData;
	selectHelperWriteFDSInfo_t *pState = (selectHelperWriteFDSInfo_t*) pParam;
	short fdMod;

	assert(pAction != NULL);
	assert(pState != NULL);

	if(pAction->pMod->getWriteFDForSelect(pAction->pModData, &fdMod) == RS_RET_OK) {
	   FD_SET(fdMod, pState->pWritefds);
		if(fdMod > *pState->pMaxfds)
			*pState->pMaxfds = fdMod;
		}

	return iRet;
}


/* helper function for mainloop(). This is used to call module action
 * handlers after select if a fd is writable.
 * HINT: when we change to the new threading model, this function
 * is probably no longer needed.
 * rgerhards, 2007-08-02
 */
DEFFUNC_llExecFunc(mainloopCallWithWritableFDsActions)
{
	DEFiRet;
	action_t *pAction = (action_t*) pData;
	selectHelperWriteFDSInfo_t *pState = (selectHelperWriteFDSInfo_t*) pParam;
	short fdMod;

	assert(pAction != NULL);
	assert(pState != NULL);

	if(pAction->pMod->getWriteFDForSelect(pAction->pModData, &fdMod) == RS_RET_OK) {
		if(FD_ISSET(fdMod, pState->pWritefds)) {
			if((iRet = pAction->pMod->onSelectReadyWrite(pAction->pModData))
			   != RS_RET_OK) {
				dprintf("error %d from onSelectReadyWrite() - continuing\n", iRet);
			}
			if(--(pState->pMaxfds) == 0) {
				ABORT_FINALIZE(RS_RET_FINISHED); /* all processed, nothing left to do */
			}
		}
	   }

finalize_it:
	return iRet;
}


/* process the select() selector array after the successful select.
 * processing is completed as soon as all selectors needing attention
 * are processed.
 * rgerhards, 2007-08-08
 */
static rsRetVal processSelectAfter(int maxfds, int nfds, fd_set *pReadfds, fd_set *pWritefds)
{
	DEFiRet;
	rsRetVal iRetLL;
	int i;
	int fd;
	char line[MAXLINE +1];
	selectHelperWriteFDSInfo_t writeFDSInfo;
#ifdef  SYSLOG_INET
	selector_t *f;
	struct sockaddr_storage frominet;
	socklen_t socklen;
	uchar fromHost[NI_MAXHOST];
	uchar fromHostFQDN[NI_MAXHOST];
	int iTCPSess;
	ssize_t l;
#endif	/* #ifdef SYSLOG_INET */

	/* the following macro is used to decrement the number of to-be-probed
	 * fds and abort this function when we are done with all.
	 */
#	define FDPROCESSED() if(--nfds == 0) { dprintf("nfds == 0, aborting\n");ABORT_FINALIZE(RS_RET_OK); }

	if (nfds < 0) {
		if (errno != EINTR)
			logerror("select");
		dprintf("Select interrupted.\n");
		ABORT_FINALIZE(RS_RET_OK); /* we are done in any case */
	}

	if(debugging_on) {
		dprintf("\nSuccessful select, descriptor count = %d, Activity on: ", nfds);
		for (i = 0; i <= maxfds; ++i)
			if ( FD_ISSET(i, pReadfds) )
				dprintf("%d ", i);
		dprintf(("\n"));
	}

#ifdef SYSLOG_INET
	/* Now check the TCP send sockets. So far, we only see if they become
	 * writable and then change their internal status. No real async
	 * writing is currently done. This code will be replaced once liblogging
	 * is used, thus we try not to focus too much on it.
	 *
	 * IMPORTANT: With the current code, the writefds must be checked first,
	 * because the readfds might have messages to be forwarded, which
	 * rely on the status setting that is done here!
	 * rgerhards 2005-07-20
	 *
	 * liblogging implementation will not happen as anticipated above. So
	 * this code here will stay for quite a while.
	 * rgerhards, 2006-12-07
	 */
	writeFDSInfo.pWritefds = pWritefds;
	writeFDSInfo.pMaxfds = &nfds;
	for(f = Files; f != NULL ; f = f->f_next) {
		iRetLL = llExecFunc(&f->llActList, mainloopCallWithWritableFDsActions, &writeFDSInfo);
		if(iRetLL == RS_RET_FINISHED) {
			ABORT_FINALIZE(RS_RET_OK); /* we are done in this case */
		}
	}
#endif /* #ifdef SYSLOG_INET */
#ifdef SYSLOG_UNIXAF
	for (i = 0; i < nfunix; i++) {
		if ((fd = funix[i]) != -1 && FD_ISSET(fd, pReadfds)) {
			int iRcvd;
			iRcvd = recv(fd, line, MAXLINE - 1, 0);
			dprintf("Message from UNIX socket: #%d\n", fd);
			if (iRcvd > 0) {
				printchopped(LocalHostName, line, iRcvd,  fd, funixParseHost[i]);
			} else if (iRcvd < 0 && errno != EINTR) {
				dprintf("UNIX socket error: %d = %s.\n", \
					errno, strerror(errno));
				logerror("recvfrom UNIX");
			}
		FDPROCESSED();
		}
	}
#endif

#ifdef SYSLOG_INET
       if (finet != NULL && AcceptRemote) {
	       for (i = 0; i < *finet; i++) {
		       if (FD_ISSET(finet[i+1], pReadfds)) {
			       socklen = sizeof(frominet);
			       memset(line, '\0', sizeof(line));
			       l = recvfrom(finet[i+1], line, MAXLINE - 1, 0,
			       		    (struct sockaddr *)&frominet, &socklen);
			       if (l > 0) {
				       line[l] = '\0';
				       if(cvthname(&frominet, fromHost, fromHostFQDN) == 1) {
					       dprintf("Message from inetd socket: #%d, host: %s\n",
						       finet[i+1], fromHost);
					       /* Here we check if a host is permitted to send us
						* syslog messages. If it isn't, we do not further
						* process the message but log a warning (if we are
						* configured to do this).
						* rgerhards, 2005-09-26
						*/
					       if(isAllowedSender(pAllowedSenders_UDP,
						  (struct sockaddr *)&frominet, (char*)fromHostFQDN)) {
						       printchopped((char*)fromHost, line, l,  finet[i+1], 1);
					       } else {
						       if(option_DisallowWarning) {
							       logerrorSz("UDP message from disallowed sender %s discarded",
									  (char*)fromHost);
						       }	
					       }
				       }
			       }
			       else if (l < 0 && errno != EINTR && errno != EAGAIN) {
				       dprintf("INET socket error: %d = %s.\n",
							errno, strerror(errno));
					       logerror("recvfrom inet");
					       /* should be harmless */
					       sleep(1);
				       }
			FDPROCESSED();
			}
	       }
	}

	if(sockTCPLstn != NULL && *sockTCPLstn) {
		for (i = 0; i < *sockTCPLstn; i++) {
			if (FD_ISSET(sockTCPLstn[i+1], pReadfds)) {
				dprintf("New connect on TCP inetd socket: #%d\n", sockTCPLstn[i+1]);
				TCPSessAccept(sockTCPLstn[i+1]);
				FDPROCESSED();
			}
		}

		/* now check the sessions */
		iTCPSess = TCPSessGetNxtSess(-1);
		while(iTCPSess != -1) {
			int fdSess;
			int state;
			fdSess = pTCPSessions[iTCPSess].sock;
			if(FD_ISSET(fdSess, pReadfds)) {
				char buf[MAXLINE];
				dprintf("tcp session socket with new data: #%d\n", fdSess);

				/* Receive message */
				state = recv(fdSess, buf, sizeof(buf), 0);
				if(state == 0) {
					/* process any incomplete frames left over */
					TCPSessPrepareClose(iTCPSess);
					/* Session closed */
					TCPSessClose(iTCPSess);
				} else if(state == -1) {
					logerrorInt("TCP session %d will be closed, error ignored\n",
						    fdSess);
					TCPSessClose(iTCPSess);
				} else {
					/* valid data received, process it! */
					if(TCPSessDataRcvd(iTCPSess, buf, state) == 0) {
						/* in this case, something went awfully wrong.
						 * We are instructed to terminate the session.
						 */
						logerrorInt("Tearing down TCP Session %d - see "
							    "previous messages for reason(s)\n",
							    iTCPSess);
						TCPSessClose(iTCPSess);
					}
				}
				FDPROCESSED();
			}
			iTCPSess = TCPSessGetNxtSess(iTCPSess);
		}
	}

#endif
finalize_it:
	return iRet;
}


static void mainloop(void)
{
	fd_set readfds;
	int i;
	int maxfds;
	int nfds;
#ifdef  SYSLOG_INET
	selectHelperWriteFDSInfo_t writeFDSInfo;
	fd_set writefds;
	selector_t *f;
	int iTCPSess;
#endif	/* #ifdef SYSLOG_INET */
#ifdef	BSD
#ifdef	USE_PTHREADS
	struct timeval tvSelectTimeout;
#endif
#endif

	errno = 0;
	FD_ZERO(&readfds);
	maxfds = 0;

	while(!bFinished){
		/* first check if we have any internal messages queued and spit them out */
		processImInternal();

#ifdef SYSLOG_UNIXAF
		/* Add the Unix Domain Sockets to the list of read
		 * descriptors.
		 * rgerhards 2005-08-01: we must now check if there are
		 * any local sockets to listen to at all. If the -o option
		 * is given without -a, we do not need to listen at all..
		 */
		/* Copy master connections */
		for (i = startIndexUxLocalSockets; i < nfunix; i++) {
			if (funix[i] != -1) {
				FD_SET(funix[i], &readfds);
				if (funix[i]>maxfds) maxfds=funix[i];
			}
		}
#endif
#ifdef SYSLOG_INET
		/* Add the UDP listen sockets to the list of read descriptors.
		 */
		if(finet != NULL && AcceptRemote) {
                        for (i = 0; i < *finet; i++) {
                                if (finet[i+1] != -1) {
					if(Debug)
						debugListenInfo(finet[i+1], "UDP");
                                        FD_SET(finet[i+1], &readfds);
					if(finet[i+1]>maxfds) maxfds=finet[i+1];
				}
                        }
		}

		/* Add the TCP listen sockets to the list of read descriptors.
	    	 */
		if(sockTCPLstn != NULL && *sockTCPLstn) {
			for (i = 0; i < *sockTCPLstn; i++) {
				/* The if() below is theoretically not needed, but I leave it in
				 * so that a socket may become unsuable during execution. That
				 * feature is not yet supported by the current code base.
				 */
				if (sockTCPLstn[i+1] != -1) {
					if(Debug)
						debugListenInfo(sockTCPLstn[i+1], "TCP");
					FD_SET(sockTCPLstn[i+1], &readfds);
					if(sockTCPLstn[i+1]>maxfds) maxfds=sockTCPLstn[i+1];
				}
			}
			/* do the sessions */
			iTCPSess = TCPSessGetNxtSess(-1);
			while(iTCPSess != -1) {
				int fdSess;
				fdSess = pTCPSessions[iTCPSess].sock;
				dprintf("Adding TCP Session %d\n", fdSess);
				FD_SET(fdSess, &readfds);
				if (fdSess>maxfds) maxfds=fdSess;
				/* now get next... */
				iTCPSess = TCPSessGetNxtSess(iTCPSess);
			}
		}

		/* TODO: activate the code below only if we actually need to check
		 * for outstanding writefds.
		 */
		if(1) {
			/* Now add the TCP output sockets to the writefds set. This implementation
			 * is not optimal (performance-wise) and it should be replaced with something
			 * better in the longer term. I've not yet done this, as this code is
			 * scheduled to be replaced after the liblogging integration.
			 * rgerhards 2005-07-20
			 */
			FD_ZERO(&writefds);
			writeFDSInfo.pWritefds = &writefds;
			writeFDSInfo.pMaxfds = &maxfds;
			for (f = Files; f != NULL ; f = f->f_next) {
				llExecFunc(&f->llActList, mainloopAddModWriteFDSforSelect, &writeFDSInfo);
			}
		}
#endif

		if ( debugging_on ) {
			dprintf("----------------------------------------\n");
			dprintf("Calling select, active file descriptors (max %d): ", maxfds);
			for (nfds= 0; nfds <= maxfds; ++nfds)
				if ( FD_ISSET(nfds, &readfds) )
					dprintf("%d ", nfds);
			dprintf("\n");
		}

#define  MAIN_SELECT_TIMEVAL NULL
#ifdef BSD
#ifdef USE_PTHREADS
		/* There seems to be a problem with BSD and threads. When running on
		 * multiple threads, a signal will not cause the select call to be
		 * interrrupted. I am not sure if this is by design or an bug (some
		 * information on the web let's me think it is a bug), but that really
		 * does not matter. The issue with our code is that we will not gain
		 * control when rsyslogd is terminated or huped. What I am doing now is
		 * make the select call timeout after 10 seconds, so that we can check
		 * the condition then. Obviously, this causes some sluggish behaviour and
		 * also the loss of some (very few) cpu cycles. Both, I think, are
		 * absolutely acceptable.
		 * rgerhards, 2005-10-26
		 * TODO: I got some information: this seems to be expected signal() behaviour
		 * we should investigate the use of sigaction() (see klogd.c for an sample).
		 * rgerhards, 2007-06-22
		 */
		tvSelectTimeout.tv_sec = 10;
		tvSelectTimeout.tv_usec = 0;
#		undef MAIN_SELECT_TIMEVAL 
#		define MAIN_SELECT_TIMEVAL &tvSelectTimeout
#endif
#endif
#ifdef SYSLOG_INET
#define MAIN_SELECT_WRITEFDS (fd_set *) &writefds
#else
#define MAIN_SELECT_WRITEFDS NULL
#endif
		nfds = select(maxfds+1, (fd_set *) &readfds, MAIN_SELECT_WRITEFDS,
				  (fd_set *) NULL, MAIN_SELECT_TIMEVAL);

		if(bRequestDoMark) {
			domark();
			bRequestDoMark = 0;
			/* We do not use continue, because domark() is carried out
			 * only when something else happened.
			 */
		}
		if(restart) {
			dprintf("\nReceived SIGHUP, reloading rsyslogd.\n");
			/* worker thread is stopped as part of init() */
			init();
			restart = 0;
			continue;
		}
		if (nfds == 0) {
			dprintf("No select activity.\n");
			continue;
		}

		processSelectAfter(maxfds, nfds, &readfds, MAIN_SELECT_WRITEFDS);

#undef MAIN_SELECT_TIMEVAL 
#undef MAIN_SELECT_WRITEFDS
	}
}

/* If user is not root, prints warnings or even exits 
 * TODO: check all dynafiles for write permission
 * ... but it is probably better to wait here until we have
 * a module interface - rgerhards, 2007-07-23
 */
static void checkPermissions()
{
	/* we are not root */
	if (geteuid() != 0)
	{
		fputs("WARNING: Local messages will not be logged! If you want to log them, run rsyslog as root.\n",stderr); 
#ifdef SYSLOG_INET	
		/* udp enabled and port number less than or equal to 1024 */
		if ( AcceptRemote && (atoi(LogPort) <= 1024) )
			fprintf(stderr, "WARNING: Will not listen on UDP port %s. Use port number higher than 1024 or run rsyslog as root!\n", LogPort);
		
		/* tcp enabled and port number less or equal to 1024 */
		if( bEnableTCP   && (atoi(TCPLstnPort) <= 1024) )
			fprintf(stderr, "WARNING: Will not listen on TCP port %s. Use port number higher than 1024 or run rsyslog as root!\n", TCPLstnPort);

		/* Neither explicit high UDP port nor explicit high TCP port.
                 * It is useless to run anymore */
		if( !(AcceptRemote && (atoi(LogPort) > 1024)) && !( bEnableTCP && (atoi(TCPLstnPort) > 1024)) )
		{
#endif
			fprintf(stderr, "ERROR: Nothing to log, no reason to run. Please run rsyslog as root.\n");
			exit(EXIT_FAILURE);
#ifdef SYSLOG_INET
		}
#endif
	}
}


/* load build-in modules
 * very first version begun on 2007-07-23 by rgerhards
 */
static rsRetVal loadBuildInModules(void)
{
	DEFiRet;

	if((iRet = doModInit(modInitFile, (uchar*) "builtin-file")) != RS_RET_OK)
		return iRet;
#ifdef SYSLOG_INET
	if((iRet = doModInit(modInitFwd, (uchar*) "builtin-fwd")) != RS_RET_OK)
		return iRet;
#endif
	if((iRet = doModInit(modInitShell, (uchar*) "builtin-shell")) != RS_RET_OK)
		return iRet;
#	ifdef WITH_DB
	if((iRet = doModInit(modInitMySQL, (uchar*) "builtin-mysql")) != RS_RET_OK)
		return iRet;
#	endif
	if((iRet = doModInit(modInitDiscard, (uchar*) "builtin-discard")) != RS_RET_OK)
		return iRet;

	/* dirty, but this must be for the time being: the usrmsg module must always be
	 * loaded as last module. This is because it processes any time of action selector.
	 * If we load it before other modules, these others will never have a chance of
	 * working with the config file. We may change that implementation so that a user name
	 * must start with an alnum, that would definitely help (but would it break backwards
	 * compatibility?). * rgerhards, 2007-07-23
	 */
	if((iRet = doModInit(modInitUsrMsg, (uchar*) "builtin-usrmsg")) != RS_RET_OK)
		return iRet;

	/* ok, initialization of the command handler probably does not 100% belong right in
	 * this space here. However, with the current design, this is actually quite a good
	 * place to put it. We might decide to shuffle it around later, but for the time
	 * being, the code has found its home here. A not-just-sideeffect of this decision
	 * is that rsyslog will terminate if we can not register our built-in config commands.
	 * This, I think, is the right thing to do. -- rgerhards, 2007-07-31
	 */
#ifdef	USE_PTHREADS
	CHKiRet(regCfSysLineHdlr((uchar *)"mainmsgqueuesize", 0, eCmdHdlrInt, NULL, &iMainMsgQueueSize));
#endif
	CHKiRet(regCfSysLineHdlr((uchar *)"repeatedmsgreduction", 0, eCmdHdlrBinary, NULL, &bReduceRepeatMsgs));
	CHKiRet(regCfSysLineHdlr((uchar *)"actionexeconlywhenpreviousissuspended", 0, eCmdHdlrBinary, NULL, &bActExecWhenPrevSusp));
	CHKiRet(regCfSysLineHdlr((uchar *)"controlcharacterescapeprefix", 0, eCmdHdlrGetChar, NULL, &cCCEscapeChar));
	CHKiRet(regCfSysLineHdlr((uchar *)"escapecontrolcharactersonreceive", 0, eCmdHdlrBinary, NULL, &bEscapeCCOnRcv));
	CHKiRet(regCfSysLineHdlr((uchar *)"dropmsgswithmaliciousdnsptrrecords", 0, eCmdHdlrBinary, NULL, &bDropMalPTRMsgs));
	CHKiRet(regCfSysLineHdlr((uchar *)"droptrailinglfonreception", 0, eCmdHdlrBinary, NULL, &bDropTrailingLF));
	CHKiRet(regCfSysLineHdlr((uchar *)"template", 0, eCmdHdlrCustomHandler, doNameLine, (void*)DIR_TEMPLATE));
	CHKiRet(regCfSysLineHdlr((uchar *)"outchannel", 0, eCmdHdlrCustomHandler, doNameLine, (void*)DIR_OUTCHANNEL));
	CHKiRet(regCfSysLineHdlr((uchar *)"allowedsender", 0, eCmdHdlrCustomHandler, doNameLine, (void*)DIR_ALLOWEDSENDER));
	CHKiRet(regCfSysLineHdlr((uchar *)"modload", 0, eCmdHdlrCustomHandler, doModLoad, NULL));
	CHKiRet(regCfSysLineHdlr((uchar *)"includeconfig", 0, eCmdHdlrCustomHandler, doIncludeLine, NULL));
	CHKiRet(regCfSysLineHdlr((uchar *)"umask", 0, eCmdHdlrFileCreateMode, setUmask, NULL));
	CHKiRet(regCfSysLineHdlr((uchar *)"debugprinttemplatelist", 0, eCmdHdlrBinary, NULL, &bDebugPrintTemplateList));
	CHKiRet(regCfSysLineHdlr((uchar *)"debugprintmodulelist", 0, eCmdHdlrBinary, NULL, &bDebugPrintModuleList));
	CHKiRet(regCfSysLineHdlr((uchar *)"debugprintcfsyslinehandlerlist", 0, eCmdHdlrBinary,
		 NULL, &bDebugPrintCfSysLineHandlerList));
	CHKiRet(regCfSysLineHdlr((uchar *)"resetconfigvariables", 1, eCmdHdlrCustomHandler, resetConfigVariables, NULL));

finalize_it:
	return iRet;
}


int main(int argc, char **argv)
{	register int i;
	register char *p;
	int num_fds;
	rsRetVal iRet;

#ifdef	MTRACE
	mtrace(); /* this is a debug aid for leak detection - either remove
	           * or put in conditional compilation. 2005-01-18 RGerhards */
#endif

	pid_t ppid = getpid();
	int ch;
	struct hostent *hent;

	extern int optind;
	extern char *optarg;
	uchar *pTmp;

	if(chdir ("/") != 0)
		fprintf(stderr, "Can not do 'cd /' - still trying to run\n");
	for (i = 1; i < MAXFUNIX; i++) {
		funixn[i] = "";
		funix[i]  = -1;
	}

	/* doing some core initializations */
	if((iRet = modInitIminternal()) != RS_RET_OK) {
		fprintf(stderr, "fatal error: could not initialize errbuf object (error code %d).\n",
			iRet);
		exit(1); /* "good" exit, leaving at init for fatal error */
	}

	if((iRet = loadBuildInModules()) != RS_RET_OK) {
		fprintf(stderr, "fatal error: could not activate built-in modules. Error code %d.\n",
			iRet);
		exit(1); /* "good" exit, leaving at init for fatal error */
	}

	/* END core initializations */

	while ((ch = getopt(argc, argv, "46Aa:dehi:f:l:m:nop:r::s:t:u:vwx")) != EOF) {
		switch((char)ch) {
                case '4':
	                family = PF_INET;
                        break;
                case '6':
                        family = PF_INET6;
                        break;
                case 'A':
                        send_to_all++;
                        break;
		case 'a':
			if (nfunix < MAXFUNIX)
				if(*optarg == ':') {
					funixParseHost[nfunix] = 1;
					funixn[nfunix++] = optarg+1;
				}
				else {
					funixParseHost[nfunix] = 0;
					funixn[nfunix++] = optarg;
				}
			else
				fprintf(stderr, "rsyslogd: Out of descriptors, ignoring %s\n", optarg);
			break;
		case 'd':		/* debug */
			Debug = 1;
			break;
		case 'e':		/* log every message (no repeat message supression) */
			logEveryMsg = 1;
			break;
		case 'f':		/* configuration file */
			ConfFile = (uchar*) optarg;
			break;
		case 'h':
			NoHops = 0;
			break;
		case 'i':		/* pid file name */
			PidFile = optarg;
			break;
		case 'l':
			if (LocalHosts) {
				fprintf (stderr, "rsyslogd: Only one -l argument allowed," \
					"the first one is taken.\n");
				break;
			}
			LocalHosts = crunch_list(optarg);
			break;
		case 'm':		/* mark interval */
			MarkInterval = atoi(optarg) * 60;
			break;
		case 'n':		/* don't fork */
			NoFork = 1;
			break;
		case 'o':		/* omit local logging (/dev/log) */
			startIndexUxLocalSockets = 1;
			break;
		case 'p':		/* path to regular log socket */
			funixn[0] = optarg;
			break;
		case 'r':		/* accept remote messages */
			AcceptRemote = 1;
			if(optarg == NULL)
				LogPort = "0";
			else
				LogPort = optarg;
			break;
		case 's':
			if (StripDomains) {
				fprintf (stderr, "rsyslogd: Only one -s argument allowed," \
					"the first one is taken.\n");
				break;
			}
			StripDomains = crunch_list(optarg);
			break;
		case 't':		/* enable tcp logging */
#ifdef SYSLOG_INET
			configureTCPListen(optarg);
#else
			fprintf(stderr, "rsyslogd: -t not valid - not compiled for network support");
#endif
			break;
		case 'u':		/* misc user settings */
			if(atoi(optarg) == 1)
				bParseHOSTNAMEandTAG = 0;
			break;
		case 'v':
			printf("rsyslogd %s, ", VERSION);
			printf("compiled with:\n");
#ifdef USE_PTHREADS
			printf("\tFEATURE_PTHREADS (dual-threading)\n");
#endif
#ifdef FEATURE_REGEXP
			printf("\tFEATURE_REGEXP\n");
#endif
#ifdef WITH_DB
			printf("\tFEATURE_DB\n");
#endif
#ifndef	NOLARGEFILE
			printf("\tFEATURE_LARGEFILE\n");
#endif
#ifdef	USE_NETZIP
			printf("\tFEATURE_NETZIP (syslog message compression)\n");
#endif
#ifdef	SYSLOG_INET
			printf("\tSYSLOG_INET (Internet/remote support)\n");
#endif
#ifndef	NDEBUG
			printf("\tFEATURE_DEBUG (debug build, slow code)\n");
#endif
			printf("\nSee http://www.rsyslog.com for more information.\n");
			exit(0); /* exit for -v option - so this is a "good one" */
		case 'w':		/* disable disallowed host warnigs */
			option_DisallowWarning = 0;
			break;
		case 'x':		/* disable dns for remote messages */
			DisableDNS = 1;
			break;
		case '?':              
		default:
			usage();
		}
	}

	if ((argc -= optind))
		usage();

	checkPermissions();

	if ( !(Debug || NoFork) )
	{
		dprintf("Checking pidfile.\n");
		if (!check_pid(PidFile))
		{
			signal (SIGTERM, doexit);
			if (fork()) {
				/*
				 * Parent process
				 */
				sleep(300);
				/*
				 * Not reached unless something major went wrong.  5
				 * minutes should be a fair amount of time to wait.
				 * Please note that this procedure is important since
				 * the father must not exit before syslogd isn't
				 * initialized or the klogd won't be able to flush its
				 * logs.  -Joey
				 */
				exit(1); /* "good" exit - after forking, not diasabling anything */
			}
			num_fds = getdtablesize();
			for (i= 0; i < num_fds; i++)
				(void) close(i);
			untty();
		}
		else
		{
			fputs(" Already running.\n", stderr);
			exit(1); /* "good" exit, done if syslogd is already running */
		}
	}
	else