summaryrefslogtreecommitdiffstats
path: root/tools/smfile.c
diff options
context:
space:
mode:
Diffstat (limited to 'tools/smfile.c')
-rw-r--r--tools/smfile.c136
1 files changed, 136 insertions, 0 deletions
diff --git a/tools/smfile.c b/tools/smfile.c
new file mode 100644
index 00000000..9ad01421
--- /dev/null
+++ b/tools/smfile.c
@@ -0,0 +1,136 @@
+/* smfile.c
+ * This is a strgen module for the traditional file format.
+ *
+ * Format generated:
+ * "%TIMESTAMP:::date-rfc3339% %HOSTNAME% %syslogtag%%msg:::sp-if-no-1st-sp%%msg:::drop-last-lf%\n"
+ * Note that this is the same as smtradfile.c, except that we do have a RFC3339 timestamp. However,
+ * we have copied over the code from there, it is too simple to go through all the hassle
+ * of having a single code base.
+ *
+ * NOTE: read comments in module-template.h to understand how this file
+ * works!
+ *
+ * File begun on 2010-06-01 by RGerhards
+ *
+ * Copyright 2010 Rainer Gerhards and Adiscon GmbH.
+ *
+ * This file is part of rsyslog.
+ *
+ * Rsyslog 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Rsyslog 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 Rsyslog. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * A copy of the GPL can be found in the file "COPYING" in this distribution.
+ */
+#include "config.h"
+#include "rsyslog.h"
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+#include <errno.h>
+#include "syslogd.h"
+#include "conf.h"
+#include "syslogd-types.h"
+#include "template.h"
+#include "msg.h"
+#include "module-template.h"
+#include "unicode-helper.h"
+
+MODULE_TYPE_STRGEN
+STRGEN_NAME("RSYSLOG_FileFormat")
+
+/* internal structures
+ */
+DEF_SMOD_STATIC_DATA
+
+
+/* config data */
+
+
+/* This strgen tries to minimize the amount of reallocs be first obtaining pointers to all strings
+ * needed (including their length) and then calculating the actual space required. So when we
+ * finally copy, we know exactly what we need. So we do at most one alloc.
+ */
+BEGINstrgen
+ register int iBuf;
+ uchar *pTimeStamp;
+ size_t lenTimeStamp;
+ uchar *pHOSTNAME;
+ size_t lenHOSTNAME;
+ uchar *pTAG;
+ int lenTAG;
+ uchar *pMSG;
+ size_t lenMSG;
+ size_t lenTotal;
+CODESTARTstrgen
+ DBGPRINTF("XXX: smfile strgen called\n");
+ /* first obtain all strings and their length (if not fixed) */
+ pTimeStamp = (uchar*) getTimeReported(pMsg, tplFmtRFC3339Date);
+ lenTimeStamp = ustrlen(pTimeStamp);
+ pHOSTNAME = (uchar*) getHOSTNAME(pMsg);
+ lenHOSTNAME = getHOSTNAMELen(pMsg);
+ getTAG(pMsg, &pTAG, &lenTAG);
+ pMSG = getMSG(pMsg);
+ lenMSG = getMSGLen(pMsg);
+
+ /* calculate len, constants for spaces and similar fixed strings */
+ lenTotal = lenTimeStamp + 1 + lenHOSTNAME + 1 + lenTAG + lenMSG + 2;
+ if(pMSG[0] != ' ')
+ ++lenTotal; /* then we need to introduce one additional space */
+
+ /* now make sure buffer is large enough */
+ if(lenTotal >= *pLenBuf)
+ CHKiRet(ExtendBuf(ppBuf, pLenBuf, lenTotal));
+
+ /* and concatenate the resulting string */
+ memcpy(*ppBuf, pTimeStamp, lenTimeStamp);
+ iBuf = lenTimeStamp;
+ *(*ppBuf + iBuf++) = ' ';
+
+ memcpy(*ppBuf + iBuf, pHOSTNAME, lenHOSTNAME);
+ iBuf += lenHOSTNAME;
+ *(*ppBuf + iBuf++) = ' ';
+
+ memcpy(*ppBuf + iBuf, pTAG, lenTAG);
+ iBuf += lenTAG;
+
+ if(pMSG[0] != ' ')
+ *(*ppBuf + iBuf++) = ' ';
+ memcpy(*ppBuf + iBuf, pMSG, lenMSG);
+ iBuf += lenMSG;
+
+ /* trailer */
+ *(*ppBuf + iBuf++) = '\n';
+ *(*ppBuf + iBuf) = '\0';
+
+finalize_it:
+ENDstrgen
+
+
+BEGINmodExit
+CODESTARTmodExit
+ENDmodExit
+
+
+BEGINqueryEtryPt
+CODESTARTqueryEtryPt
+CODEqueryEtryPt_STD_SMOD_QUERIES
+ENDqueryEtryPt
+
+
+BEGINmodInit(smfile)
+CODESTARTmodInit
+ *ipIFVersProvided = CURR_MOD_IF_VERSION; /* we only support the current interface specification */
+CODEmodInit_QueryRegCFSLineHdlr
+
+ dbgprintf("rsyslog standard file format strgen init called, compiled with version %s\n", VERSION);
+ENDmodInit