2 * Copyright (c) 1995, 1996
3 * Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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 Bill Paul.
16 * 4. Neither the name of the author nor the names of any co-contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * $FreeBSD: src/usr.sbin/rpc.ypxfrd/ypxfrd_main.c,v 1.8.2.3 2002/02/15 00:46:58 des Exp $
33 * $DragonFly: src/usr.sbin/rpc.ypxfrd/ypxfrd_main.c,v 1.3 2004/05/20 19:24:43 cpressey Exp $
41 #include <stdlib.h> /* getenv, exit */
43 #include <rpc/pmap_clnt.h> /* for pmap_unset */
44 #include <string.h> /* strcmp */
46 #include <sys/ttycom.h> /* TIOCNOTTY */
48 #include <sysent.h> /* getdtablesize, open */
49 #endif /* __cplusplus */
51 #include <sys/socket.h>
52 #include <netinet/in.h>
54 #include "ypxfrd_extern.h"
59 #define SIG_PF void(*)(int)
66 #define _RPCSVC_CLOSEDOWN 120
67 int _rpcpmstart; /* Started by a port monitor ? */
68 static int _rpcfdtype;
69 /* Whether Stream or Datagram ? */
70 /* States a server can be in wrt request */
76 extern int _rpcsvcstate; /* Set when a request is serviced */
78 char *progname = "rpc.ypxfrd";
79 char *yp_dir = "/var/yp/";
82 void _msgout(char* msg)
86 syslog(LOG_ERR, "%s", msg);
90 syslog(LOG_ERR, "%s", msg);
97 if (_rpcsvcstate == _IDLE) {
98 extern fd_set svc_fdset;
102 if (_rpcfdtype == SOCK_DGRAM)
105 size = getdtablesize();
107 for (i = 0, openfd = 0; i < size && openfd < 2; i++)
108 if (FD_ISSET(i, &svc_fdset))
113 if (_rpcsvcstate == _SERVED)
114 _rpcsvcstate = _IDLE;
116 (void) signal(SIGALRM, (SIG_PF) closedown);
117 (void) alarm(_RPCSVC_CLOSEDOWN/2);
128 #endif /* def FD_SETSIZE */
131 int fd_setsize = _rpc_dtablesize();
133 /* Establish the identity of the parent ypserv process. */
141 #endif /* def FD_SETSIZE */
142 switch (select(fd_setsize, &readfds, NULL, NULL,
143 (struct timeval *)0)) {
145 if (errno == EINTR) {
148 warn("svc_run: - select failed");
153 svc_getreqset(&readfds);
154 if (forked && pid != getpid())
160 static void reaper(sig)
174 if (sig == SIGCHLD) {
175 while (wait3(&status, WNOHANG, NULL) > 0)
178 (void) pmap_unset(YPXFRD_FREEBSD_PROG, YPXFRD_FREEBSD_VERS);
188 fprintf(stderr, "usage: rpc.ypxfrd [-p path]\n");
197 SVCXPRT *transp = NULL;
200 struct sockaddr_in saddr;
201 int asize = sizeof (saddr);
204 while ((ch = getopt(argc, argv, "p:h")) != -1) {
217 if (getsockname(0, (struct sockaddr *)&saddr, &asize) == 0) {
218 int ssize = sizeof (int);
220 if (saddr.sin_family != AF_INET)
222 if (getsockopt(0, SOL_SOCKET, SO_TYPE,
223 (char *)&_rpcfdtype, &ssize) == -1)
228 openlog("rpc.ypxfrd", LOG_PID, LOG_DAEMON);
239 size = getdtablesize();
240 for (i = 0; i < size; i++)
242 i = open(_PATH_CONSOLE, 2);
245 i = open(_PATH_TTY, 2);
247 (void) ioctl(i, TIOCNOTTY, (char *)NULL);
250 openlog("rpc.ypxfrd", LOG_PID, LOG_DAEMON);
253 (void) pmap_unset(YPXFRD_FREEBSD_PROG, YPXFRD_FREEBSD_VERS);
256 if ((_rpcfdtype == 0) || (_rpcfdtype == SOCK_DGRAM)) {
257 transp = svcudp_create(sock);
258 if (transp == NULL) {
259 _msgout("cannot create udp service.");
264 if (!svc_register(transp, YPXFRD_FREEBSD_PROG, YPXFRD_FREEBSD_VERS, ypxfrd_freebsd_prog_1, proto)) {
265 _msgout("unable to register (YPXFRD_FREEBSD_PROG, YPXFRD_FREEBSD_VERS, udp).");
270 if ((_rpcfdtype == 0) || (_rpcfdtype == SOCK_STREAM)) {
271 transp = svctcp_create(sock, 0, 0);
272 if (transp == NULL) {
273 _msgout("cannot create tcp service.");
278 if (!svc_register(transp, YPXFRD_FREEBSD_PROG, YPXFRD_FREEBSD_VERS, ypxfrd_freebsd_prog_1, proto)) {
279 _msgout("unable to register (YPXFRD_FREEBSD_PROG, YPXFRD_FREEBSD_VERS, tcp).");
284 if (transp == (SVCXPRT *)NULL) {
285 _msgout("could not create a handle");
289 (void) signal(SIGALRM, (SIG_PF) closedown);
290 (void) alarm(_RPCSVC_CLOSEDOWN/2);
293 (void) signal(SIGPIPE, SIG_IGN);
294 (void) signal(SIGCHLD, (SIG_PF) reaper);
295 (void) signal(SIGTERM, (SIG_PF) reaper);
296 (void) signal(SIGINT, (SIG_PF) reaper);
297 (void) signal(SIGHUP, (SIG_PF) reaper);
300 _msgout("svc_run returned");