along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- $Id: tincd.c,v 1.10.4.75 2003/07/22 12:58:34 guus Exp $
+ $Id: tincd.c,v 1.10.4.83 2003/08/03 09:55:20 guus Exp $
*/
#include "system.h"
#include <lzo1x.h>
+#include <getopt.h>
+
#include "conf.h"
+#include "device.h"
#include "logger.h"
#include "net.h"
#include "netutl.h"
char *program_name = NULL;
/* If nonzero, display usage information and exit. */
-int show_help = 0;
+bool show_help = false;
/* If nonzero, print the version on standard output and exit. */
-int show_version = 0;
+bool show_version = false;
/* If nonzero, it will attempt to kill a running tincd and exit. */
int kill_tincd = 0;
int generate_keys = 0;
/* If nonzero, use null ciphers and skip all key exchanges. */
-int bypass_security = 0;
+bool bypass_security = false;
/* If nonzero, disable swapping for this process. */
-int do_mlock = 0;
+bool do_mlock = false;
/* If nonzero, write log entries to a separate file. */
-int use_logfile = 0;
+bool use_logfile = false;
char *identname = NULL; /* program name for syslog */
char *pidfilename = NULL; /* pid file location */
char *logfilename = NULL; /* log file location */
char **g_argv; /* a copy of the cmdline arguments */
-char **environment; /* A pointer to the environment on
- startup */
+
+static int status;
static struct option const long_options[] = {
{"config", required_argument, NULL, 'c'},
{"kill", optional_argument, NULL, 'k'},
{"net", required_argument, NULL, 'n'},
- {"help", no_argument, &show_help, 1},
- {"version", no_argument, &show_version, 1},
- {"no-detach", no_argument, &do_detach, 0},
+ {"help", no_argument, NULL, 1},
+ {"version", no_argument, NULL, 2},
+ {"no-detach", no_argument, NULL, 'D'},
{"generate-keys", optional_argument, NULL, 'K'},
{"debug", optional_argument, NULL, 'd'},
- {"bypass-security", no_argument, &bypass_security, 1},
- {"mlock", no_argument, &do_mlock, 1},
- {"logfile", optional_argument, NULL, 'F'},
- {"pidfile", required_argument, NULL, 'P'},
+ {"bypass-security", no_argument, NULL, 3},
+ {"mlock", no_argument, NULL, 'L'},
+ {"logfile", optional_argument, NULL, 4},
+ {"pidfile", required_argument, NULL, 5},
{NULL, 0, NULL, 0}
};
-static void usage(int status)
+#ifdef HAVE_MINGW
+static struct WSAData wsa_state;
+#endif
+
+static void usage(bool status)
{
- if(status != 0)
+ if(status)
fprintf(stderr, _("Try `%s --help\' for more information.\n"),
program_name);
else {
" --version Output version information and exit.\n\n"));
printf(_("Report bugs to tinc@nl.linux.org.\n"));
}
-
- exit(status);
}
-static void parse_options(int argc, char **argv, char **envp)
+static bool parse_options(int argc, char **argv)
{
int r;
int option_index = 0;
break;
case 'D': /* no detach */
- do_detach = 0;
+ do_detach = false;
break;
case 'L': /* no detach */
- do_mlock = 1;
+ do_mlock = true;
break;
case 'd': /* inc debug level */
break;
case 'k': /* kill old tincds */
+#ifndef HAVE_MINGW
if(optarg) {
if(!strcasecmp(optarg, "HUP"))
kill_tincd = SIGHUP;
if(!kill_tincd) {
fprintf(stderr, _("Invalid argument `%s'; SIGNAL must be a number or one of HUP, TERM, KILL, USR1, USR2, WINCH, INT or ALRM.\n"),
optarg);
- usage(1);
+ usage(true);
+ return false;
}
}
} else
kill_tincd = SIGTERM;
+#else
+ kill_tincd = 1;
+#endif
break;
case 'n': /* net name given */
if(generate_keys < 512) {
fprintf(stderr, _("Invalid argument `%s'; BITS must be a number equal to or greater than 512.\n"),
optarg);
- usage(1);
+ usage(true);
+ return false;
}
generate_keys &= ~7; /* Round it to bytes */
generate_keys = 1024;
break;
- case 'F': /* write log entries to a file */
- use_logfile = 1;
+ case 1: /* show help */
+ show_help = true;
+ break;
+
+ case 2: /* show version */
+ show_version = true;
+ break;
+
+ case 3: /* bypass security */
+ bypass_security = true;
+ break;
+
+ case 4: /* write log entries to a file */
+ use_logfile = true;
if(optarg)
logfilename = xstrdup(optarg);
break;
- case 'P': /* write PID to a file */
+ case 5: /* write PID to a file */
pidfilename = xstrdup(optarg);
break;
case '?':
- usage(1);
+ usage(true);
+ return false;
default:
break;
}
}
+
+ return true;
}
/* This function prettyprints the key generation process */
Generate a public/private RSA keypair, and ask for a file to store
them in.
*/
-static int keygen(int bits)
+static bool keygen(int bits)
{
RSA *rsa_key;
FILE *f;
if(!rsa_key) {
fprintf(stderr, _("Error during key generation!\n"));
- return -1;
+ return false;
} else
fprintf(stderr, _("Done.\n"));
- get_config_string(lookup_config(config_tree, "Name"), &name);
-
- if(name)
- asprintf(&filename, "%s/hosts/%s", confbase, name);
- else
- asprintf(&filename, "%s/rsa_key.pub", confbase);
-
- f = ask_and_safe_open(filename, _("public RSA key"), "a");
+ asprintf(&filename, "%s/rsa_key.priv", confbase);
+ f = ask_and_safe_open(filename, _("private RSA key"), true, "a");
if(!f)
- return -1;
+ return false;
if(ftell(f))
fprintf(stderr, _("Appending key to existing contents.\nMake sure only one key is stored in the file.\n"));
- PEM_write_RSAPublicKey(f, rsa_key);
+ PEM_write_RSAPrivateKey(f, rsa_key, NULL, NULL, 0, NULL, NULL);
fclose(f);
free(filename);
- asprintf(&filename, "%s/rsa_key.priv", confbase);
- f = ask_and_safe_open(filename, _("private RSA key"), "a");
+ get_config_string(lookup_config(config_tree, "Name"), &name);
+
+ if(name)
+ asprintf(&filename, "%s/hosts/%s", confbase, name);
+ else
+ asprintf(&filename, "%s/rsa_key.pub", confbase);
+
+ f = ask_and_safe_open(filename, _("public RSA key"), false, "a");
if(!f)
- return -1;
+ return false;
if(ftell(f))
fprintf(stderr, _("Appending key to existing contents.\nMake sure only one key is stored in the file.\n"));
- PEM_write_RSAPrivateKey(f, rsa_key, NULL, NULL, 0, NULL, NULL);
+ PEM_write_RSAPublicKey(f, rsa_key);
fclose(f);
free(filename);
- return 0;
+ return true;
}
/*
}
}
-int main(int argc, char **argv, char **envp)
+int main(int argc, char **argv)
{
program_name = argv[0];
bindtextdomain(PACKAGE, LOCALEDIR);
textdomain(PACKAGE);
- environment = envp;
- parse_options(argc, argv, envp);
+ if(!parse_options(argc, argv))
+ return 1;
+
make_names();
if(show_version) {
return 0;
}
- if(show_help)
- usage(0);
+ if(show_help) {
+ usage(false);
+ return 0;
+ }
if(kill_tincd)
- exit(kill_other(kill_tincd));
+ return !kill_other(kill_tincd);
openlogger("tinc", LOGMODE_STDERR);
if(generate_keys) {
read_server_config();
- exit(keygen(generate_keys));
+ return !keygen(generate_keys);
}
- if(read_server_config())
- exit(1);
+ if(!read_server_config())
+ return 1;
if(lzo_init() != LZO_E_OK) {
logger(LOG_ERR, _("Error initializing LZO compressor!"));
- exit(1);
+ return 1;
+ }
+
+#ifdef HAVE_MINGW
+ if(WSAStartup(MAKEWORD(2, 2), &wsa_state)) {
+ logger(LOG_ERR, _("System call `%s' failed: %s"), "WSAStartup", winerror(GetLastError()));
+ return 1;
}
- if(detach())
- exit(0);
+ if(!do_detach || !init_service())
+ return main2(argc, argv);
+ else
+ return 1;
+}
+
+int main2(int argc, char **argv)
+{
+#endif
+
+ if(!detach())
+ return 1;
- for(;;) {
- if(!setup_network_connections()) {
- main_loop();
- cleanup_and_exit(1);
- }
- logger(LOG_ERR, _("Unrecoverable error"));
- cp_trace();
+ /* Setup sockets and open device. If it doesn't work, don't give up but try again. */
+ while(!setup_network_connections()) {
if(do_detach) {
logger(LOG_NOTICE, _("Restarting in %d seconds!"), maxtimeout);
sleep(maxtimeout);
} else {
logger(LOG_ERR, _("Not restarting."));
- exit(1);
+ return 1;
}
}
+
+ /* Start main loop. It only exits when tinc is killed. */
+
+ status = main_loop();
+
+ /* Shutdown properly. */
+
+ close_network_connections();
+
+ ifdebug(CONNECTIONS)
+ dump_device_stats();
+
+ logger(LOG_NOTICE, _("Terminating"));
+ return status;
}