int main (int argc, char **argv)
{
int s;
#ifdef WIN32
int err;
if ((err = InitWinsock()) != 0)
{
printf("InitWinsock: Unable to initialize winsock 1.1 (%u)\n", err);
return 1;
}
#endif
if ((argc < 3) || (argc > 4))
{
printf("Usage: failover <port> <mainip> [failoverip]\n");
return 1;
}
// connect to the mainip's port
if ((s = opentcp(argv[2], atoi(argv[1]), 10)) == -1)
{
// connection failed, return the error or failoverip
if (argc == 3)
printf("%s\n", strserr());
else
printf("%s\n", argv[3]);
}
else
{
closetcp(s);
// connection succeeded, return the mainip
printf("%s\n", argv[2]);
}
return 0;
}
// syslogdtcp( )
//
// Entry into syslogdipc.cpp to setup and start UDP listening
//
void syslogdtcp( )
{
bool firststart = TRUE;
int msgrecv;
int seterr;
int i;
char recv_buffer[1024];
char *ptr_recv_buffer = recv_buffer;
// setup for running, if error bug out - don't worry about main
// will timeout waiting for TCPSEM1.
seterr = setuptcp( );
if(seterr)
{
if(seterr == 1)
{
psock_errno( NULL );
closetcp( );
}
if(seterr == 3) printf("DosGetSharedMem failed\n");
}
// main working loop **********************
while(TRUE)
{
// Just my play. Set SEM1 (SYSLOGD is waiting), delay 1 sec
// (let SYSLOGD reset), and start now FALSE - continue -
// sleep 1.5 sec for SEM sets or thread will shutdown
if(firststart)
{
DosPostEventSem(hevTCPSEM1); // tell main I am up!!
DosSleep(1500);
firststart = FALSE;
}
// clear recv_buffer
for(i = 0; i < 1024; i++) recv_buffer[i] = 0;
msgrecv = recv(tcpsocket, ptr_recv_buffer, 1024, 0); // read socket
// have a message msgrecv > 0 and not blocked
if(msgrecv > 0 && prgoptions->securemode)
{
if(DosRequestMutexSem(mtxMEMMUX, 60000L) != 0)
{
printf("SYSLOGTCP: Timeout waiting for MUX\n");
}
else
{
if(pShareMem->slotstat[pShareMem->index])
{
printf("SYSLOGTCP: Buffer full!!\n");
stats.tcpoverflows++;
}
else
{
// clear the slot
strnset(pShareMem->data[pShareMem->index], '\0 ',
sizeof(pShareMem->data[pShareMem->index]));
// write message into slot replace any character < 32 or > 126
// with a space RFC 3164 characters must be in this range
for(i = 0; i < strlen(recv_buffer); i++)
{
if(((int)recv_buffer[i] < 32) || ((int)recv_buffer[i] > 126))
pShareMem->data[pShareMem->index][i] = ' ';
else pShareMem->data[pShareMem->index][i] = recv_buffer[i];
}
// set flag slot has message
pShareMem->slotstat[pShareMem->index] = 1;
++pShareMem->index; // increment index to next slot
++stats.systcprecvmsg;
// ++tcpatcount;
// if reached top of buffer reset index to 0 or bottom
if(pShareMem->index == (BUFFER_SLOTS)) pShareMem->index = 0;
DosPostEventSem(hevIDLESEM); // wakeup MAIN if IDE
}
DosReleaseMutexSem(mtxMEMMUX);
}
} // end of msg recv
// check for shutdown signal from main
DosQueryEventSem(hevTCPSEM2, &TCPSEM2Ct);
if(TCPSEM2Ct && !firststart)
{
DosResetEventSem(hevTCPSEM1, &TCPSEM1Ct);
closetcp( );
}
// sleep 1 minute if blocked so do not suckup the CPU
if(!prgoptions->securemode) DosSleep(60000L);
} //$* end working loop
} //$* end of syslogdtcp
