| | |
| | | fd = open(pidFile, O_RDWR | O_CREAT, S_IRUSR | S_IWUSR); |
| | | if (fd == -1){ |
| | | ts_fprintf(stderr,"Could not open PID file %s", pidFile); |
| | | fatal("Cannot continue",1); |
| | | fatal("Cannot continue (1)",1); |
| | | } |
| | | if (flags & CPF_CLOEXEC) { |
| | | |
| | |
| | | flags = fcntl(fd, F_GETFD); /* Fetch flags */ |
| | | if (flags == -1){ |
| | | ts_fprintf(stderr,"Could not get flags for PID file %s", pidFile); |
| | | fatal("Cannot continue",1); |
| | | fatal("Cannot continue (2)",1); |
| | | } |
| | | flags |= FD_CLOEXEC; /* Turn on FD_CLOEXEC */ |
| | | |
| | | if (fcntl(fd, F_SETFD, flags) == -1) /* Update flags */ |
| | | ts_fprintf(stderr,"Could not set flags for PID file %s", pidFile); |
| | | fatal("Cannot continue",1); |
| | | fatal("Cannot continue (3)",1); |
| | | |
| | | } |
| | | |
| | |
| | | if (errno == EAGAIN || errno == EACCES){ |
| | | ts_fprintf(stderr,"PID file '%s' is locked; probably " |
| | | "'%s' is already running", pidFile, progName); |
| | | fatal("Cannot continue",1); |
| | | fatal("Cannot continue (4)",1); |
| | | } |
| | | else{ |
| | | ts_fprintf(stderr,"Unable to lock PID file '%s'", pidFile); |
| | | fatal("Cannot continue",1); |
| | | fatal("Cannot continue (5)",1); |
| | | } |
| | | } |
| | | |
| | | if (ftruncate(fd, 0) == -1){ |
| | | ts_fprintf(stderr,"Could not truncate PID file '%s'", pidFile); |
| | | fatal("Cannot continue",1); |
| | | fatal("Cannot continue (6)",1); |
| | | } |
| | | |
| | | snprintf(buf, BUF_SIZE, "%ld\n", (long) getpid()); |
| | | if (write(fd, buf, strlen(buf)) != strlen(buf)){ |
| | | |
| | | ts_fprintf(stderr,"Writing to PID file '%s'", pidFile); |
| | | fatal("Cannot continue",1); |
| | | fatal("Cannot continue (7)",1); |
| | | } |
| | | return fd; |
| | | } |