1 /*- 2 * Copyright (c) 1993, John Brezak 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 #ifndef lint 31 static const char rcsid[] = 32 "$FreeBSD$"; 33 #endif /* not lint */ 34 35 #include <stdlib.h> 36 #include <rpc/rpc.h> 37 #include <sys/socket.h> 38 #include <signal.h> 39 #include <syslog.h> 40 #include <rpcsvc/rnusers.h> 41 42 #include "extern.h" 43 44 int from_inetd = 1; 45 46 static void 47 cleanup(int sig __unused) 48 { 49 (void) rpcb_unset(RUSERSPROG, RUSERSVERS_IDLE, NULL); 50 (void) rpcb_unset(RUSERSPROG, RUSERSVERS_ORIG, NULL); 51 exit(0); 52 } 53 54 int 55 main(int argc __unused, char *argv[] __unused) 56 { 57 SVCXPRT *transp = NULL; /* Keep compiler happy. */ 58 int ok; 59 struct sockaddr_storage from; 60 socklen_t fromlen; 61 62 /* 63 * See if inetd started us 64 */ 65 fromlen = sizeof(from); 66 if (getsockname(0, (struct sockaddr *)&from, &fromlen) < 0) { 67 from_inetd = 0; 68 } 69 70 if (!from_inetd) { 71 daemon(0, 0); 72 73 (void) rpcb_unset(RUSERSPROG, RUSERSVERS_IDLE, NULL); 74 (void) rpcb_unset(RUSERSPROG, RUSERSVERS_ORIG, NULL); 75 76 (void) signal(SIGINT, cleanup); 77 (void) signal(SIGTERM, cleanup); 78 (void) signal(SIGHUP, cleanup); 79 } 80 81 openlog("rpc.rusersd", LOG_CONS|LOG_PID, LOG_DAEMON); 82 83 if (from_inetd) { 84 transp = svc_tli_create(0, NULL, NULL, 0, 0); 85 if (transp == NULL) { 86 syslog(LOG_ERR, "cannot create udp service."); 87 exit(1); 88 } 89 ok = svc_reg(transp, RUSERSPROG, RUSERSVERS_IDLE, 90 rusers_service, NULL); 91 } else 92 ok = svc_create(rusers_service, 93 RUSERSPROG, RUSERSVERS_IDLE, "udp"); 94 if (!ok) { 95 syslog(LOG_ERR, "unable to register (RUSERSPROG, RUSERSVERS_IDLE, %s)", (!from_inetd)?"udp":"(inetd)"); 96 exit(1); 97 } 98 if (from_inetd) 99 ok = svc_reg(transp, RUSERSPROG, RUSERSVERS_ORIG, 100 rusers_service, NULL); 101 else 102 ok = svc_create(rusers_service, 103 RUSERSPROG, RUSERSVERS_ORIG, "udp"); 104 if (!ok) { 105 syslog(LOG_ERR, "unable to register (RUSERSPROG, RUSERSVERS_ORIG, %s)", (!from_inetd)?"udp":"(inetd)"); 106 exit(1); 107 } 108 109 svc_run(); 110 syslog(LOG_ERR, "svc_run returned"); 111 exit(1); 112 } 113