libexec/rpc.rstatd/rstatd.c

   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  * $FreeBSD: src/libexec/rpc.rstatd/rstatd.c,v 1.8 1999/08/28 00:09:54 peter Exp $
  30  */
  31
  32 #include <stdlib.h>
  33 #include <rpc/rpc.h>
  34 #include <signal.h>
  35 #include <syslog.h>
  36 #include <rpcsvc/rstat.h>
  37
  38 extern void rstat_service();
  39
  40 int from_inetd = 1;     /* started from inetd ? */
  41 int closedown = 20;     /* how long to wait before going dormant */
  42
  43 void __dead2
  44 cleanup(int sig)
  45 {
  46         (void) rpcb_unset(RSTATPROG, RSTATVERS_TIME, NULL);
  47         (void) rpcb_unset(RSTATPROG, RSTATVERS_SWTCH, NULL);
  48         (void) rpcb_unset(RSTATPROG, RSTATVERS_ORIG, NULL);
  49         exit(0);
  50 }
  51
  52 int
  53 main(int argc, char *argv[])
  54 {
  55         SVCXPRT *transp;
  56         int ok;
  57         struct sockaddr_storage from;
  58         int fromlen;
  59
  60         if (argc == 2)
  61                 closedown = atoi(argv[1]);
  62         if (closedown <= 0)
  63                 closedown = 20;
  64
  65         /*
  66          * See if inetd started us
  67          */
  68         fromlen = sizeof(from);
  69         if (getsockname(0, (struct sockaddr *)&from, &fromlen) < 0) {
  70                 from_inetd = 0;
  71         }
  72
  73         if (!from_inetd) {
  74                 daemon(0, 0);
  75
  76                 (void)rpcb_unset(RSTATPROG, RSTATVERS_TIME, NULL);
  77                 (void)rpcb_unset(RSTATPROG, RSTATVERS_SWTCH, NULL);
  78                 (void)rpcb_unset(RSTATPROG, RSTATVERS_ORIG, NULL);
  79
  80                 (void) signal(SIGINT, cleanup);
  81                 (void) signal(SIGTERM, cleanup);
  82                 (void) signal(SIGHUP, cleanup);
  83         }
  84
  85         openlog("rpc.rstatd", 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, RSTATPROG, RSTATVERS_TIME,
  94                              rstat_service, NULL);
  95         } else
  96                 ok = svc_create(rstat_service,
  97                                 RSTATPROG, RSTATVERS_TIME, "udp");
  98         if (!ok) {
  99                 syslog(LOG_ERR, "unable to register (RSTATPROG, RSTATVERS_TIME, %s)", (!from_inetd)?"udp":"(inetd)");
 100                 exit(1);
 101         }
 102         if (from_inetd)
 103                 ok = svc_reg(transp, RSTATPROG, RSTATVERS_SWTCH,
 104                              rstat_service, NULL);
 105         else
 106                 ok = svc_create(rstat_service,
 107                                 RSTATPROG, RSTATVERS_SWTCH, "udp");
 108         if (!ok) {
 109                 syslog(LOG_ERR, "unable to register (RSTATPROG, RSTATVERS_SWTCH, %s)", (!from_inetd)?"udp":"(inetd)");
 110                 exit(1);
 111         }
 112         if (from_inetd)
 113                 ok = svc_reg(transp, RSTATPROG, RSTATVERS_ORIG,
 114                              rstat_service, NULL);
 115         else
 116                 ok = svc_create(rstat_service,
 117                                 RSTATPROG, RSTATVERS_ORIG, "udp");
 118         if (!ok) {
 119                 syslog(LOG_ERR, "unable to register (RSTATPROG, RSTATVERS_ORIG, %s)", (!from_inetd)?"udp":"(inetd)");
 120                 exit(1);
 121         }
 122
 123         svc_run();
 124         syslog(LOG_ERR, "svc_run returned");
 125         exit(1);
 126 }