1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1993, John Brezak 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #ifndef lint 33 static const char rcsid[] = 34 "$FreeBSD$"; 35 #endif /* not lint */ 36 37 #include <stdlib.h> 38 #include <rpc/rpc.h> 39 #include <signal.h> 40 #include <syslog.h> 41 #include <rpcsvc/rstat.h> 42 43 extern void rstat_service(struct svc_req *, SVCXPRT *); 44 45 int from_inetd = 1; /* started from inetd ? */ 46 int closedown = 20; /* how long to wait before going dormant */ 47 48 void 49 cleanup(int sig __unused) 50 { 51 (void) rpcb_unset(RSTATPROG, RSTATVERS_TIME, NULL); 52 (void) rpcb_unset(RSTATPROG, RSTATVERS_SWTCH, NULL); 53 (void) rpcb_unset(RSTATPROG, RSTATVERS_ORIG, NULL); 54 exit(0); 55 } 56 57 int 58 main(int argc, char *argv[]) 59 { 60 SVCXPRT *transp; 61 int ok; 62 struct sockaddr_storage from; 63 socklen_t fromlen; 64 65 if (argc == 2) 66 closedown = atoi(argv[1]); 67 if (closedown <= 0) 68 closedown = 20; 69 70 /* 71 * See if inetd started us 72 */ 73 fromlen = sizeof(from); 74 if (getsockname(0, (struct sockaddr *)&from, &fromlen) < 0) { 75 from_inetd = 0; 76 } 77 78 if (!from_inetd) { 79 daemon(0, 0); 80 81 (void)rpcb_unset(RSTATPROG, RSTATVERS_TIME, NULL); 82 (void)rpcb_unset(RSTATPROG, RSTATVERS_SWTCH, NULL); 83 (void)rpcb_unset(RSTATPROG, RSTATVERS_ORIG, NULL); 84 85 (void) signal(SIGINT, cleanup); 86 (void) signal(SIGTERM, cleanup); 87 (void) signal(SIGHUP, cleanup); 88 } 89 90 openlog("rpc.rstatd", LOG_CONS|LOG_PID, LOG_DAEMON); 91 92 if (from_inetd) { 93 transp = svc_tli_create(0, NULL, NULL, 0, 0); 94 if (transp == NULL) { 95 syslog(LOG_ERR, "cannot create udp service."); 96 exit(1); 97 } 98 ok = svc_reg(transp, RSTATPROG, RSTATVERS_TIME, 99 rstat_service, NULL); 100 } else 101 ok = svc_create(rstat_service, 102 RSTATPROG, RSTATVERS_TIME, "udp"); 103 if (!ok) { 104 syslog(LOG_ERR, "unable to register (RSTATPROG, RSTATVERS_TIME, %s)", (!from_inetd)?"udp":"(inetd)"); 105 exit(1); 106 } 107 if (from_inetd) 108 ok = svc_reg(transp, RSTATPROG, RSTATVERS_SWTCH, 109 rstat_service, NULL); 110 else 111 ok = svc_create(rstat_service, 112 RSTATPROG, RSTATVERS_SWTCH, "udp"); 113 if (!ok) { 114 syslog(LOG_ERR, "unable to register (RSTATPROG, RSTATVERS_SWTCH, %s)", (!from_inetd)?"udp":"(inetd)"); 115 exit(1); 116 } 117 if (from_inetd) 118 ok = svc_reg(transp, RSTATPROG, RSTATVERS_ORIG, 119 rstat_service, NULL); 120 else 121 ok = svc_create(rstat_service, 122 RSTATPROG, RSTATVERS_ORIG, "udp"); 123 if (!ok) { 124 syslog(LOG_ERR, "unable to register (RSTATPROG, RSTATVERS_ORIG, %s)", (!from_inetd)?"udp":"(inetd)"); 125 exit(1); 126 } 127 128 svc_run(); 129 syslog(LOG_ERR, "svc_run returned"); 130 exit(1); 131 } 132