2 * SPDX-License-Identifier: BSD-4-Clause
4 * Copyright (c) 1995, 1996
5 * Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
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. All advertising materials mentioning features or use of this software
16 * must display the following acknowledgement:
17 * This product includes software developed by Bill Paul.
18 * 4. Neither the name of the author nor the names of any co-contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
22 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 #include <sys/cdefs.h>
36 __FBSDID("$FreeBSD$");
38 #include "ypupdate_prot.h"
40 #include <stdlib.h> /* getenv, exit */
41 #include <rpc/pmap_clnt.h> /* for pmap_unset */
42 #include <rpc/rpc_com.h>
43 #include <string.h> /* strcmp */
46 #include <sysent.h> /* getdtablesize, open */
47 #endif /* __cplusplus */
49 #include <sys/socket.h>
50 #include <netinet/in.h>
56 #include "ypupdated_extern.h"
57 #include "yp_extern.h"
60 #define SIG_PF void(*)(int)
67 #define _RPCSVC_CLOSEDOWN 120
68 int _rpcpmstart; /* Started by a port monitor ? */
69 static int _rpcfdtype;
70 /* Whether Stream or Datagram ? */
71 /* States a server can be in wrt request */
77 extern int _rpcsvcstate; /* Set when a request is serviced */
81 char *progname = "rpc.ypupdated";
82 char *yp_dir = "/var/yp/";
89 syslog(LOG_ERR, "%s", msg);
93 syslog(LOG_ERR, "%s", msg);
100 if (_rpcsvcstate == _IDLE) {
101 extern fd_set svc_fdset;
105 if (_rpcfdtype == SOCK_DGRAM)
108 size = getdtablesize();
110 for (i = 0, openfd = 0; i < size && openfd < 2; i++)
111 if (FD_ISSET(i, &svc_fdset))
116 if (_rpcsvcstate == _SERVED)
117 _rpcsvcstate = _IDLE;
119 (void) signal(SIGALRM, (SIG_PF) closedown);
120 (void) alarm(_RPCSVC_CLOSEDOWN/2);
124 ypupdated_svc_run(void)
130 #endif /* def FD_SETSIZE */
133 int fd_setsize = _rpc_dtablesize();
135 /* Establish the identity of the parent ypupdated process. */
143 #endif /* def FD_SETSIZE */
144 switch (select(fd_setsize, &readfds, NULL, NULL,
145 (struct timeval *)0)) {
147 if (errno == EINTR) {
150 warn("svc_run: - select failed");
155 svc_getreqset(&readfds);
156 if (forked && pid != getpid())
174 if (sig == SIGCHLD) {
175 while (wait3(&status, WNOHANG, NULL) > 0)
178 (void) pmap_unset(YPU_PROG, YPU_VERS);
186 fprintf(stderr, "rpc.ypupdatedd [-p path]\n");
191 main(int argc, char *argv[])
193 register SVCXPRT *transp = NULL;
196 struct sockaddr_in saddr;
197 int asize = sizeof (saddr);
200 while ((ch = getopt(argc, argv, "p:h")) != -1) {
214 if (svc_auth_reg(AUTH_DES, _svcauth_des) == -1) {
215 yp_error("failed to register AUTH_DES flavor");
219 if (getsockname(0, (struct sockaddr *)&saddr, &asize) == 0) {
220 int ssize = sizeof (int);
222 if (saddr.sin_family != AF_INET)
224 if (getsockopt(0, SOL_SOCKET, SO_TYPE,
225 (char *)&_rpcfdtype, &ssize) == -1)
230 openlog("rpc.ypupdatedd", LOG_PID, LOG_DAEMON);
234 err(1, "cannot fork");
236 openlog("rpc.ypupdated", LOG_PID, LOG_DAEMON);
239 (void) pmap_unset(YPU_PROG, YPU_VERS);
242 if ((_rpcfdtype == 0) || (_rpcfdtype == SOCK_DGRAM)) {
243 transp = svcudp_create(sock);
244 if (transp == NULL) {
245 _msgout("cannot create udp service.");
250 if (!svc_register(transp, YPU_PROG, YPU_VERS, ypu_prog_1, proto)) {
251 _msgout("unable to register (YPU_PROG, YPU_VERS, udp).");
256 if ((_rpcfdtype == 0) || (_rpcfdtype == SOCK_STREAM)) {
257 transp = svctcp_create(sock, 0, 0);
258 if (transp == NULL) {
259 _msgout("cannot create tcp service.");
264 if (!svc_register(transp, YPU_PROG, YPU_VERS, ypu_prog_1, proto)) {
265 _msgout("unable to register (YPU_PROG, YPU_VERS, tcp).");
270 if (transp == (SVCXPRT *)NULL) {
271 _msgout("could not create a handle");
275 (void) signal(SIGALRM, (SIG_PF) closedown);
276 (void) alarm(_RPCSVC_CLOSEDOWN/2);
279 (void) signal(SIGPIPE, SIG_IGN);
280 (void) signal(SIGCHLD, (SIG_PF) reaper);
281 (void) signal(SIGTERM, (SIG_PF) reaper);
282 (void) signal(SIGINT, (SIG_PF) reaper);
283 (void) signal(SIGHUP, (SIG_PF) reaper);
286 _msgout("svc_run returned");