diff options
Diffstat (limited to 'src/windows/leashdll/timesync.c')
| -rw-r--r-- | src/windows/leashdll/timesync.c | 297 |
1 files changed, 297 insertions, 0 deletions
diff --git a/src/windows/leashdll/timesync.c b/src/windows/leashdll/timesync.c new file mode 100644 index 0000000000..c9feadb3e8 --- /dev/null +++ b/src/windows/leashdll/timesync.c @@ -0,0 +1,297 @@ +/* timesync stuff for leash - 7/28/94 - evanr */ + +#include <windows.h> +#include "leashdll.h" + +#include <time.h> +#include <sys\timeb.h> +#include <stdlib.h> +#include <string.h> + +#include <winkrbid.h> + +#ifdef WSHELPER +#include <wshelper.h> +#endif + +#include <stdio.h> +#include "leasherr.h" +#include "leashids.h" + +int ProcessTimeSync(char *, int, char *); + +#define TM_OFFSET 2208988800 + +/* timezone.h has a winsock.h conflict */ +struct timezone { + int tz_minuteswest; + int tz_dsttime; +}; + +/************************************/ +/* settimeofday(): */ +/************************************/ +int +settimeofday( + struct timeval *tv, + struct timezone *tz + ) +{ + SYSTEMTIME systime; + struct tm *newtime; + + newtime = gmtime((time_t *)&(tv->tv_sec)); + systime.wYear = 1900+newtime->tm_year; + systime.wMonth = 1+newtime->tm_mon; + systime.wDay = newtime->tm_mday; + systime.wHour = newtime->tm_hour; + systime.wMinute = newtime->tm_min; + systime.wSecond = newtime->tm_sec; + systime.wMilliseconds = 0; + return SetSystemTime(&systime); +} + +/************************************/ +/* gettimeofday(): */ +/************************************/ +int +gettimeofday( + struct timeval *tv, + struct timezone *tz + ) +{ + struct _timeb tb; + _tzset(); + _ftime(&tb); + if (tv) { + tv->tv_sec = tb.time; + tv->tv_usec = tb.millitm * 1000; + } + if (tz) { + tz->tz_minuteswest = tb.timezone; + tz->tz_dsttime = tb.dstflag; + } + return 0; +} + + +LONG +not_an_API_LeashGetTimeServerName( + char *timeServerName, + const char *valueName + ) +{ + HMODULE hmLeash; + char hostname[128]; + char value[80]; + DWORD dwType; + DWORD dwCount; + int check = 0; + HKEY hKey; + HKEY rKey1; + HKEY rKey2; + LONG lResult; + BOOL bEnv; + + memset(value, '\0', sizeof(value)); + memset(hostname, '\0', sizeof(hostname)); + + GetEnvironmentVariable("TIMEHOST", hostname, sizeof(hostname)); + bEnv = (GetLastError() == ERROR_ENVVAR_NOT_FOUND); + + if (!(bEnv && hostname[0])) + { + // Check registry for TIMEHOST + rKey1 = HKEY_CURRENT_USER; + rKey2 = HKEY_LOCAL_MACHINE; + + for (check = 0; check < 2; check++) + { + if (ERROR_SUCCESS == RegOpenKeyEx(check == 0 ? rKey1 : rKey2, + "Software\\MIT\\Leash32\\Settings", + 0, KEY_QUERY_VALUE, &hKey)) + { + memset(value, '\0', sizeof(value)); + lResult = RegQueryValueEx(hKey, (LPTSTR)valueName, NULL, + &dwType, NULL, &dwCount); + if (lResult == ERROR_SUCCESS) + { + lResult = RegQueryValueEx(hKey, (LPTSTR)valueName, + NULL, &dwType, + (LPTSTR)value, &dwCount); + if (lResult == ERROR_SUCCESS && *value) + { + // found + strcpy(hostname, value); + break; + } + } + } + } + + if (!*hostname) + { + // Check resource string for TIMEHOST + if ((hmLeash = GetModuleHandle(LEASH_DLL)) != NULL) + { + if (!LoadString(hmLeash, LSH_TIME_HOST, hostname, + sizeof(hostname))) + memset(hostname, '\0', sizeof(hostname)); + } + } + if (!*hostname) + { + // OK, _Default_ it will be! :) + strcpy(hostname, "time"); + } + } + strcpy(timeServerName, hostname); + return 0; +} + +/************************************/ +/* Leash_timesync(): */ +/************************************/ +LONG Leash_timesync(int MessageP) +{ + char tmpstr[2048]; + char tmpstr1[2048]; + char hostname[128]; + int Port; + int rc; + struct servent *sp; + WORD wVersionRequested; + WSADATA wsaData; + char name[80]; + + if ((pkrb5_init_context == NULL) +#ifndef NO_KRB4 + && (ptkt_string == NULL) +#endif + ) + return(0); + + wVersionRequested = 0x0101; + memset(name, '\0', sizeof(name)); + memset(hostname, '\0', sizeof(hostname)); + memset(tmpstr, '\0', sizeof(tmpstr)); + + if ((rc = WSAStartup(wVersionRequested, &wsaData))) + { + wsprintf(tmpstr, "Couldn't initialize WinSock to synchronize time\n\rError Number: %d", rc); + WSACleanup(); + return(LSH_BADWINSOCK); + } + + sp = getservbyname("time", "udp"); + if (sp == 0) + Port = htons(IPPORT_TIMESERVER); + else + Port = sp->s_port; + + not_an_API_LeashGetTimeServerName(hostname, TIMEHOST); + + rc = ProcessTimeSync(hostname, Port, tmpstr); + + if(MessageP != 0) + { + if (rc && !*tmpstr) + { + strcpy(tmpstr, "Unable to syncronize time!\n\n"); + if (*hostname) + { + memset(tmpstr1, '\0', sizeof(tmpstr1)); + sprintf(tmpstr1, "Unreachable server: %s\n", hostname); + strcat(tmpstr, tmpstr1); + } + } + + MessageBox(NULL, tmpstr, "Time Server", + MB_ICONERROR | MB_OK); + } + WSACleanup(); + return(rc); +} + + +/************************************/ +/* ProcessTimeSync(): */ +/************************************/ +int ProcessTimeSync(char *hostname, int Port, char *tmpstr) +{ + char buffer[512]; + int cc; + register long *nettime; + register int s; + long hosttime; + struct hostent *host; + struct timeval tv; + struct timezone tz; + u_long argp; + struct sockaddr_in sin; + int i; + + if ((host = gethostbyname(hostname)) == NULL) + return(LSH_BADTIMESERV); + + sin.sin_port = (short)Port; + sin.sin_family = host->h_addrtype; + memcpy((struct sockaddr *)&sin.sin_addr, host->h_addr, host->h_length); + if ((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0) + { + return(LSH_NOSOCKET); + } + + argp = 1; + if (ioctlsocket(s, FIONBIO, &argp) != 0) + { + closesocket(s); + return(LSH_NOCONNECT); + } + + if (connect(s, (struct sockaddr *)&sin, sizeof(sin)) < 0) + { + closesocket(s); + return(LSH_NOCONNECT); + } + send(s, buffer, 40, 0); + if (gettimeofday (&tv, &tz) < 0) + { + closesocket(s); + return(LSH_GETTIMEOFDAY); + } + + for (i = 0; i < 4; i++) + { + if ((cc = recv(s, buffer, 512, 0)) > 0) + break; + Sleep(500); + } + if (i == 4) + { + closesocket(s); + return(LSH_RECVTIME); + } + + if (cc != 4) + { + closesocket(s); + return(LSH_RECVBYTES); + } + + nettime = (long *)buffer; + hosttime = (long) ntohl (*nettime) - TM_OFFSET; + (&tv)->tv_sec = hosttime; + if (settimeofday(&tv, &tz) < 0) + { + closesocket(s); + return(LSH_SETTIMEOFDAY); + } + + sprintf(tmpstr, "The time has been syncronized with the server: %s\n\n", hostname); + strcat(tmpstr, "To be able to use the Kerberos server, it was necessary to \nset the system time to: ") ; + strcat(tmpstr, ctime((time_t *)&hosttime)); + strcat(tmpstr, "\n"); + closesocket(s); + return(0); +} |