/* $OpenBSD: rstatd.c,v 1.7 2001/11/18 23:45:39 deraadt Exp $ */ /*- * Copyright (c) 1993, John Brezak * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #ifndef lint static char rcsid[] = "$OpenBSD: rstatd.c,v 1.7 2001/11/18 23:45:39 deraadt Exp $"; #endif /* not lint */ #include #include #include #include #include #include #include #include #include #include #include extern int __svc_fdsetsize; extern fd_set *__svc_fdset; extern void svc_getreqset2 __P((fd_set *, int)); extern void rstat_service(struct svc_req *, SVCXPRT *); void my_svc_run(void); int from_inetd = 1; /* started from inetd ? */ int closedown = 20; /* how long to wait before going dormant */ void cleanup() { (void) pmap_unset(RSTATPROG, RSTATVERS_TIME); /* XXX signal races */ (void) pmap_unset(RSTATPROG, RSTATVERS_SWTCH); (void) pmap_unset(RSTATPROG, RSTATVERS_ORIG); _exit(0); } int main(argc, argv) int argc; char *argv[]; { int sock = 0, proto = 0, fromlen; struct sockaddr_in from; SVCXPRT *transp; if (argc == 2) closedown = atoi(argv[1]); if (closedown <= 0) closedown = 20; /* * See if inetd started us */ fromlen = sizeof(from); if (getsockname(0, (struct sockaddr *)&from, &fromlen) < 0) { from_inetd = 0; sock = RPC_ANYSOCK; proto = IPPROTO_UDP; } if (!from_inetd) { daemon(0, 0); (void)pmap_unset(RSTATPROG, RSTATVERS_TIME); (void)pmap_unset(RSTATPROG, RSTATVERS_SWTCH); (void)pmap_unset(RSTATPROG, RSTATVERS_ORIG); (void) signal(SIGINT, cleanup); (void) signal(SIGTERM, cleanup); (void) signal(SIGHUP, cleanup); } openlog("rpc.rstatd", LOG_CONS|LOG_PID, LOG_DAEMON); transp = svcudp_create(sock); if (transp == NULL) { syslog(LOG_ERR, "cannot create udp service."); exit(1); } if (!svc_register(transp, RSTATPROG, RSTATVERS_TIME, rstat_service, proto)) { syslog(LOG_ERR, "unable to register (RSTATPROG, RSTATVERS_TIME, udp)."); exit(1); } if (!svc_register(transp, RSTATPROG, RSTATVERS_SWTCH, rstat_service, proto)) { syslog(LOG_ERR, "unable to register (RSTATPROG, RSTATVERS_SWTCH, udp)."); exit(1); } if (!svc_register(transp, RSTATPROG, RSTATVERS_ORIG, rstat_service, proto)) { syslog(LOG_ERR, "unable to register (RSTATPROG, RSTATVERS_ORIG, udp)."); exit(1); } my_svc_run(); syslog(LOG_ERR, "svc_run returned"); exit(1); } void my_svc_run() { extern volatile sig_atomic_t wantupdatestat; extern void updatestat(void); fd_set *fds; for (;;) { if (wantupdatestat) { updatestat(); wantupdatestat = 0; } if (__svc_fdset) { int bytes = howmany(__svc_fdsetsize, NFDBITS) * sizeof(fd_mask); fds = (fd_set *)malloc(bytes); /* XXX */ memcpy(fds, __svc_fdset, bytes); } else fds = NULL; switch (select(svc_maxfd+1, fds, 0, 0, (struct timeval *)0)) { case -1: if (errno == EINTR) { if (fds) free(fds); continue; } perror("svc_run: - select failed"); if (fds) free(fds); return; case 0: if (fds) free(fds); continue; default: svc_getreqset2(fds, svc_maxfd+1); free(fds); } } }