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. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 #ifndef lint 35 static const char rcsid[] = 36 "$FreeBSD$"; 37 #endif /* not lint */ 38 39 #include <stdlib.h> 40 #include <rpc/rpc.h> 41 #include <sys/socket.h> 42 #include <signal.h> 43 #include <syslog.h> 44 #include <rpcsvc/rnusers.h> 45 46 #include "extern.h" 47 48 int from_inetd = 1; 49 50 static void 51 cleanup(int sig __unused) 52 { 53 (void) rpcb_unset(RUSERSPROG, RUSERSVERS_IDLE, NULL); 54 (void) rpcb_unset(RUSERSPROG, RUSERSVERS_ORIG, NULL); 55 exit(0); 56 } 57 58 int 59 main(int argc __unused, char *argv[] __unused) 60 { 61 SVCXPRT *transp = NULL; /* Keep compiler happy. */ 62 int ok; 63 struct sockaddr_storage from; 64 socklen_t fromlen; 65 66 /* 67 * See if inetd started us 68 */ 69 fromlen = sizeof(from); 70 if (getsockname(0, (struct sockaddr *)&from, &fromlen) < 0) { 71 from_inetd = 0; 72 } 73 74 if (!from_inetd) { 75 daemon(0, 0); 76 77 (void) rpcb_unset(RUSERSPROG, RUSERSVERS_IDLE, NULL); 78 (void) rpcb_unset(RUSERSPROG, RUSERSVERS_ORIG, NULL); 79 80 (void) signal(SIGINT, cleanup); 81 (void) signal(SIGTERM, cleanup); 82 (void) signal(SIGHUP, cleanup); 83 } 84 85 openlog("rpc.rusersd", LOG_CONS|LOG_PID, LOG_DAEMON); 86 87 if (from_inetd) { 88 transp = svc_tli_create(0, NULL, NULL, 0, 0); 89 if (transp == NULL) { 90 syslog(LOG_ERR, "cannot create udp service."); 91 exit(1); 92 } 93 ok = svc_reg(transp, RUSERSPROG, RUSERSVERS_IDLE, 94 rusers_service, NULL); 95 } else 96 ok = svc_create(rusers_service, 97 RUSERSPROG, RUSERSVERS_IDLE, "udp"); 98 if (!ok) { 99 syslog(LOG_ERR, "unable to register (RUSERSPROG, RUSERSVERS_IDLE, %s)", (!from_inetd)?"udp":"(inetd)"); 100 exit(1); 101 } 102 if (from_inetd) 103 ok = svc_reg(transp, RUSERSPROG, RUSERSVERS_ORIG, 104 rusers_service, NULL); 105 else 106 ok = svc_create(rusers_service, 107 RUSERSPROG, RUSERSVERS_ORIG, "udp"); 108 if (!ok) { 109 syslog(LOG_ERR, "unable to register (RUSERSPROG, RUSERSVERS_ORIG, %s)", (!from_inetd)?"udp":"(inetd)"); 110 exit(1); 111 } 112 113 svc_run(); 114 syslog(LOG_ERR, "svc_run returned"); 115 exit(1); 116 } 117