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("$FreeBSD$");
43 #include <stdlib.h> /* getenv, exit */
45 #include <rpc/pmap_clnt.h> /* for pmap_unset */
46 #include <rpc/rpc_com.h>
47 #include <string.h> /* strcmp */
49 #include <sys/ttycom.h> /* TIOCNOTTY */
51 #include <sysent.h> /* getdtablesize, open */
52 #endif /* __cplusplus */
54 #include <sys/socket.h>
55 #include <netinet/in.h>
57 #include "ypxfrd_extern.h"
62 #define SIG_PF void(*)(int)
69 #define _RPCSVC_CLOSEDOWN 120
70 int _rpcpmstart; /* Started by a port monitor ? */
71 static int _rpcfdtype;
72 /* Whether Stream or Datagram ? */
73 /* States a server can be in wrt request */
79 extern int _rpcsvcstate; /* Set when a request is serviced */
81 char *progname = "rpc.ypxfrd";
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);
131 #endif /* def FD_SETSIZE */
134 int fd_setsize = _rpc_dtablesize();
136 /* Establish the identity of the parent ypserv process. */
144 #endif /* def FD_SETSIZE */
145 switch (select(fd_setsize, &readfds, NULL, NULL,
146 (struct timeval *)0)) {
148 if (errno == EINTR) {
151 warn("svc_run: - select failed");
156 svc_getreqset(&readfds);
157 if (forked && pid != getpid())
163 static void reaper(int sig)
176 if (sig == SIGCHLD) {
177 while (wait3(&status, WNOHANG, NULL) > 0)
180 (void) pmap_unset(YPXFRD_FREEBSD_PROG, YPXFRD_FREEBSD_VERS);
191 fprintf(stderr, "usage: rpc.ypxfrd [-p path]\n");
196 main(int argc, char *argv[])
198 register SVCXPRT *transp = NULL;
201 struct sockaddr_in saddr;
202 int asize = sizeof (saddr);
205 while ((ch = getopt(argc, argv, "p:h")) != -1) {
218 if (getsockname(0, (struct sockaddr *)&saddr, &asize) == 0) {
219 int ssize = sizeof (int);
221 if (saddr.sin_family != AF_INET)
223 if (getsockopt(0, SOL_SOCKET, SO_TYPE,
224 (char *)&_rpcfdtype, &ssize) == -1)
229 openlog("rpc.ypxfrd", LOG_PID, LOG_DAEMON);
240 size = getdtablesize();
241 for (i = 0; i < size; i++)
243 i = open(_PATH_CONSOLE, 2);
246 i = open(_PATH_TTY, 2);
248 (void) ioctl(i, TIOCNOTTY, (char *)NULL);
251 openlog("rpc.ypxfrd", LOG_PID, LOG_DAEMON);
254 (void) pmap_unset(YPXFRD_FREEBSD_PROG, YPXFRD_FREEBSD_VERS);
257 if ((_rpcfdtype == 0) || (_rpcfdtype == SOCK_DGRAM)) {
258 transp = svcudp_create(sock);
259 if (transp == NULL) {
260 _msgout("cannot create udp service.");
265 if (!svc_register(transp, YPXFRD_FREEBSD_PROG, YPXFRD_FREEBSD_VERS, ypxfrd_freebsd_prog_1, proto)) {
266 _msgout("unable to register (YPXFRD_FREEBSD_PROG, YPXFRD_FREEBSD_VERS, udp).");
271 if ((_rpcfdtype == 0) || (_rpcfdtype == SOCK_STREAM)) {
272 transp = svctcp_create(sock, 0, 0);
273 if (transp == NULL) {
274 _msgout("cannot create tcp service.");
279 if (!svc_register(transp, YPXFRD_FREEBSD_PROG, YPXFRD_FREEBSD_VERS, ypxfrd_freebsd_prog_1, proto)) {
280 _msgout("unable to register (YPXFRD_FREEBSD_PROG, YPXFRD_FREEBSD_VERS, tcp).");
285 if (transp == (SVCXPRT *)NULL) {
286 _msgout("could not create a handle");
290 (void) signal(SIGALRM, (SIG_PF) closedown);
291 (void) alarm(_RPCSVC_CLOSEDOWN/2);
294 (void) signal(SIGPIPE, SIG_IGN);
295 (void) signal(SIGCHLD, (SIG_PF) reaper);
296 (void) signal(SIGTERM, (SIG_PF) reaper);
297 (void) signal(SIGINT, (SIG_PF) reaper);
298 (void) signal(SIGHUP, (SIG_PF) reaper);
301 _msgout("svc_run returned");