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 #define utmp rutmp 45 #include <rpcsvc/rnusers.h> 46 #undef utmp 47 48 extern void rusers_service(struct svc_req *, SVCXPRT *); 49 50 int from_inetd = 1; 51 52 void 53 cleanup(int sig __unused) 54 { 55 (void) rpcb_unset(RUSERSPROG, RUSERSVERS_IDLE, NULL); 56 (void) rpcb_unset(RUSERSPROG, RUSERSVERS_ORIG, NULL); 57 exit(0); 58 } 59 60 int 61 main(int argc, char *argv[]) 62 { 63 SVCXPRT *transp; 64 int ok; 65 struct sockaddr_storage from; 66 socklen_t fromlen; 67 68 /* 69 * See if inetd started us 70 */ 71 fromlen = sizeof(from); 72 if (getsockname(0, (struct sockaddr *)&from, &fromlen) < 0) { 73 from_inetd = 0; 74 } 75 76 if (!from_inetd) { 77 daemon(0, 0); 78 79 (void) rpcb_unset(RUSERSPROG, RUSERSVERS_IDLE, NULL); 80 (void) rpcb_unset(RUSERSPROG, RUSERSVERS_ORIG, NULL); 81 82 (void) signal(SIGINT, cleanup); 83 (void) signal(SIGTERM, cleanup); 84 (void) signal(SIGHUP, cleanup); 85 } 86 87 openlog("rpc.rusersd", LOG_CONS|LOG_PID, LOG_DAEMON); 88 89 if (from_inetd) { 90 transp = svc_tli_create(0, NULL, NULL, 0, 0); 91 if (transp == NULL) { 92 syslog(LOG_ERR, "cannot create udp service."); 93 exit(1); 94 } 95 ok = svc_reg(transp, RUSERSPROG, RUSERSVERS_IDLE, 96 rusers_service, NULL); 97 } else 98 ok = svc_create(rusers_service, 99 RUSERSPROG, RUSERSVERS_IDLE, "udp"); 100 if (!ok) { 101 syslog(LOG_ERR, "unable to register (RUSERSPROG, RUSERSVERS_IDLE, %s)", (!from_inetd)?"udp":"(inetd)"); 102 exit(1); 103 } 104 if (from_inetd) 105 ok = svc_reg(transp, RUSERSPROG, RUSERSVERS_ORIG, 106 rusers_service, NULL); 107 else 108 ok = svc_create(rusers_service, 109 RUSERSPROG, RUSERSVERS_ORIG, "udp"); 110 if (!ok) { 111 syslog(LOG_ERR, "unable to register (RUSERSPROG, RUSERSVERS_ORIG, %s)", (!from_inetd)?"udp":"(inetd)"); 112 exit(1); 113 } 114 115 svc_run(); 116 syslog(LOG_ERR, "svc_run returned"); 117 exit(1); 118 } 119