2 * Copyright (C) 1995, 1997-1999 Jeffrey A. Uphoff
3 * Modified by Olaf Kirch, Oct. 1996.
4 * Modified by H.J. Lu, 1998.
5 * Modified by L. Hohberger of Mission Critical Linux, 2000.
18 #include <rpc/pmap_clnt.h>
23 /* Socket operations */
24 #include <sys/types.h>
25 #include <sys/socket.h>
28 short int restart = 0;
29 int run_mode = 0; /* foreground logging mode */
31 /* LH - I had these local to main, but it seemed silly to have
32 * two copies of each - one in main(), one static in log.c...
33 * It also eliminates the 256-char static in log.c */
35 char *version_p = NULL;
37 static struct option longopts[] =
39 { "foreground", 0, 0, 'F' },
40 { "no-syslog", 0, 0, 'd' },
41 { "help", 0, 0, 'h' },
42 { "version", 0, 0, 'v' },
43 { "outgoing-port", 1, 0, 'o' },
44 { "port", 1, 0, 'p' },
48 extern void sm_prog_1 (struct svc_req *, register SVCXPRT *);
49 extern int statd_get_socket(int port);
52 extern void simulator (int, char **);
56 #ifdef HAVE_TCP_WRAPPER
57 #include "tcpwrapper.h"
60 sm_prog_1_wrapper (struct svc_req *rqstp, register SVCXPRT *transp)
62 /* remote host authorization check */
63 if (!check_default("statd", svc_getcaller(transp),
64 rqstp->rq_proc, SM_PROG)) {
65 svcerr_auth (transp, AUTH_FAILED);
69 sm_prog_1 (rqstp, transp);
72 #define sm_prog_1 sm_prog_1_wrapper
81 log (L_FATAL, "Caught signal %d, un-registering and exiting.", sig);
82 pmap_unset (SM_PROG, SM_VERS);
87 * Startup information.
89 static void log_modes(void)
91 char buf[128]; /* watch stack size... */
93 /* No flags = no message */
94 if (!run_mode) return;
97 sprintf(buf,"Flags: ");
98 if (run_mode & MODE_NODAEMON)
99 strcat(buf,"No-Daemon ");
100 if (run_mode & MODE_LOG_STDERR)
101 strcat(buf,"Log-STDERR ");
102 /* future: IP aliasing
103 if (run_mode & MODE_NOTIFY_ONLY)
105 strcat(buf,"Notify-Only ");
108 /* future: IP aliasing
109 if (run_mode & MODE_NOTIFY_ONLY)
111 dprintf(L_DEBUG,"Notify IP: %s",svr_addr);
116 * Since we do more than standard statd stuff, we might need to
117 * help the occasional admin.
122 fprintf(stderr,"usage: %s [options]\n", name_p);
123 fprintf(stderr," -h, -?, --help Print this help screen.\n");
124 fprintf(stderr," -F, --foreground Foreground (no-daemon mode)\n");
125 fprintf(stderr," -d, --no-syslog Verbose logging to stderr. Foreground mode only.\n");
126 fprintf(stderr," -p, --port Port to listen on\n");
127 fprintf(stderr," -o, --outgoing-port Port for outgoing connections\n");
128 fprintf(stderr," -V, -v, --version Display version information and exit.\n");
132 * Entry routine/main loop.
134 int main (int argc, char **argv)
139 int port = 0, out_port = 0;
141 /* Default: daemon mode, no other options */
144 /* Set the basename */
145 if ((name_p = strrchr(argv[0],'/')) != NULL) {
151 /* Get the version */
152 if ((version_p = strrchr(VERSION,' ')) != NULL) {
158 /* Process command line switches */
159 while ((arg = getopt_long(argc, argv, "h?vVFdp:o:", longopts, NULL)) != EOF) {
161 case 'V': /* Version */
163 printf("%s version %s\n",name_p,version_p);
165 case 'F': /* Foreground/nodaemon mode */
166 run_mode |= MODE_NODAEMON;
168 case 'd': /* No daemon only - log to stderr */
169 run_mode |= MODE_LOG_STDERR;
172 out_port = atoi(optarg);
173 if (out_port < 1 || out_port > 65535) {
174 fprintf(stderr, "%s: bad port number: %s\n",
182 if (port < 1 || port > 65535) {
183 fprintf(stderr, "%s: bad port number: %s\n",
189 case '?': /* heeeeeelllllllpppp? heh */
193 default: /* oh dear ... heh */
199 if (port == out_port && port != 0) {
200 fprintf(stderr, "Listening and outgoing ports cannot be the same!\n");
204 if (!(run_mode & MODE_NODAEMON)) {
205 run_mode &= ~MODE_LOG_STDERR; /* Never log to console in
209 log_init (name_p,version_p);
215 /* LH - I _really_ need to update simulator... */
216 simulator (--argc, ++argv); /* simulator() does exit() */
219 if (!(run_mode & MODE_NODAEMON)) {
220 int filedes, fdmax, tempfd;
222 if ((pid = fork ()) < 0) {
223 perror ("Could not fork");
225 } else if (pid != 0) {
233 tempfd = open("/dev/null", O_RDWR);
234 close(0); dup2(tempfd, 0);
235 close(1); dup2(tempfd, 1);
236 close(2); dup2(tempfd, 2);
237 fdmax = sysconf (_SC_OPEN_MAX);
238 for (filedes = 3; filedes < fdmax; filedes++) {
244 signal (SIGHUP, killer);
245 signal (SIGINT, killer);
246 signal (SIGTERM, killer);
247 /* WARNING: the following works on Linux and SysV, but not BSD! */
248 signal(SIGCHLD, SIG_IGN);
250 /* initialize out_port */
251 statd_get_socket(out_port);
254 pmap_unset (SM_PROG, SM_VERS);
256 shuffle_dirs (); /* Move directory names around */
257 notify_hosts (); /* Send out notify requests */
260 /* future: IP aliasing
261 if (!(run_mode & MODE_NOTIFY_ONLY)) {
262 rpc_init("statd", SM_PROG, SM_VERS, sm_prog_1, port);
264 /* this registers both UDP and TCP services */
265 rpc_init("statd", SM_PROG, SM_VERS, sm_prog_1, port);
268 * Handle incoming requests: SM_NOTIFY socket requests, as
269 * well as callbacks from lockd.
271 my_svc_run(); /* I rolled my own, Olaf made it better... */