/** read configuration options from the command line */
static void parse_cmdline(struct config *config,
int argc, char **argv) {
int ret;
#ifdef __GLIBC__
static const struct option long_options[] = {
{"help", 0, 0, 'h'},
{"version", 0, 0, 'V'},
{"verbose", 0, 0, 'v'},
{"quiet", 1, 0, 'q'},
{"output", 1, 0, 'o'},
{"decode", 0, 0, 'd'},
{"map", 0, 0, 'm'},
{0,0,0,0}
};
#endif
memset(config, 0, sizeof(*config));
config->verbose = 1;
while (1) {
#ifdef __GLIBC__
int option_index = 0;
ret = getopt_long(argc, argv, "hVvqo:dm",
long_options, &option_index);
#else
ret = getopt(argc, argv, "hVvqo:dm");
#endif
if (ret == -1)
break;
switch (ret) {
case 'h':
usage();
exit(0);
case 'V':
puts("loggertools v" VERSION " (C) 2004-2007 Max Kellermann <*****@*****.**>\n"
"http://max.kellermann.name/projects/loggertools/\n");
exit(0);
case 'v':
++config->verbose;
break;
case 'q':
config->verbose = 0;
break;
case 'o':
config->output_path = optarg;
break;
case 'd':
config->map = 0;
config->decode = 1;
break;
case 'm':
config->decode = 0;
config->map = 1;
break;
default:
exit(1);
}
}
if (optind == argc)
arg_error("No input file specified");
if (optind < argc - 1)
arg_error("Too many arguments");
config->input_path = argv[optind];
if (strcmp(config->input_path, "-") == 0)
config->input_path = NULL;
if (config->output_path != NULL && strcmp(config->output_path, "-") == 0)
config->output_path = NULL;
if (config->decode && config->output_path == NULL)
arg_error("Cannot decode to stdout, please specify a file with the '-o' option");
}
int
main(int argc, char *argv[])
{
int i;
int err;
err = sel_alloc_selector(&ser2net_sel);
if (err) {
fprintf(stderr,
"Could not initialize ser2net selector: '%s'\n",
strerror(err));
return -1;
}
for (i=1; i<argc; i++) {
if ((argv[i][0] != '-') || (strlen(argv[i]) != 2)) {
fprintf(stderr, "Invalid argument: '%s'\n", argv[i]);
arg_error(argv[0]);
}
switch (argv[i][1]) {
case 'n':
detach = 0;
break;
case 'd':
detach = 0;
debug = 1;
break;
case 'b':
cisco_ios_baud_rates = 1;
break;
case 'C':
/* Get a config line. */
i++;
if (i == argc) {
fprintf(stderr, "No config line specified with -C\n");
arg_error(argv[0]);
}
handle_config_line(argv[i]);
config_file = NULL;
break;
case 'c':
/* Get a config file. */
i++;
if (i == argc) {
fprintf(stderr, "No config file specified with -c\n");
arg_error(argv[0]);
}
config_file = argv[i];
break;
case 'p':
/* Get the control port. */
i++;
if (i == argc) {
fprintf(stderr, "No control port specified with -p\n");
arg_error(argv[0]);
}
config_port = argv[i];
break;
case 'P':
i++;
if (i == argc) {
fprintf(stderr, "No pid file specified with -P\n");
arg_error(argv[0]);
}
pid_file = argv[i];
break;
#ifdef USE_UUCP_LOCKING
case 'u':
uucp_locking_enabled = 0;
break;
#endif
case 'v':
printf("%s version %s\n", argv[0], VERSION);
exit(0);
default:
fprintf(stderr, "Invalid option: '%s'\n", argv[i]);
arg_error(argv[0]);
}
}
setup_sighup();
if (config_port != NULL) {
if (controller_init(config_port) == -1) {
fprintf(stderr, "Invalid control port specified with -p\n");
arg_error(argv[0]);
}
}
if (debug && !detach)
openlog("ser2net", LOG_PID | LOG_CONS | LOG_PERROR, LOG_DAEMON);
if (config_file) {
if (readconfig(config_file) == -1) {
return 1;
}
}
if (detach) {
int pid;
/* Detach from the calling terminal. */
openlog("ser2net", LOG_PID | LOG_CONS, LOG_DAEMON);
syslog(LOG_NOTICE, "ser2net startup");
if ((pid = fork()) > 0) {
exit(0);
} else if (pid < 0) {
syslog(LOG_ERR, "Error forking first fork");
exit(1);
} else {
/* setsid() is necessary if we really want to demonize */
setsid();
/* Second fork to really deamonize me. */
if ((pid = fork()) > 0) {
exit(0);
} else if (pid < 0) {
syslog(LOG_ERR, "Error forking second fork");
exit(1);
}
}
/* Close all my standard I/O. */
chdir("/");
close(0);
close(1);
close(2);
}
/* write pid file */
make_pidfile(pid_file);
/* Ignore SIGPIPEs so they don't kill us. */
signal(SIGPIPE, SIG_IGN);
set_sighup_handler(reread_config);
sel_select_loop(ser2net_sel);
return 0;
}
