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
34 static const char rcsid[] =
35 "$FreeBSD: src/usr.sbin/rpc.yppasswdd/yppasswdd_main.c,v 1.14.2.2 2002/02/15 00:46:57 des Exp $";
40 #include <sys/types.h>
41 #include <stdlib.h> /* getenv, exit */
44 #include <sys/param.h>
45 #include <rpc/pmap_clnt.h> /* for pmap_unset */
46 #include <string.h> /* strcmp */
49 #include <sys/ioctl.h>
52 #include <sysent.h> /* getdtablesize, open */
53 #endif /* __cplusplus */
55 #include <sys/socket.h>
56 #include <netinet/in.h>
60 #include <rpcsvc/yp.h>
61 struct dom_binding {};
62 #include <rpcsvc/ypclnt.h>
63 #include "yppasswdd_extern.h"
64 #include "yppasswd_private.h"
65 #include "ypxfr_extern.h"
68 #define SIG_PF void(*)(int)
75 #define _RPCSVC_CLOSEDOWN 120
76 int _rpcpmstart = 0; /* Started by a port monitor ? */
77 static int _rpcfdtype;
78 /* Whether Stream or Datagram ? */
79 /* States a server can be in wrt request */
85 extern int _rpcsvcstate; /* Set when a request is serviced */
86 char *progname = "rpc.yppasswdd";
87 char *yp_dir = _PATH_YP;
88 char *passfile_default = _PATH_YP "master.passwd";
90 char *yppasswd_domain = NULL;
93 int allow_additions = 0;
98 char *sockname = YP_SOCKNAME;
100 static void terminate(sig)
103 svc_unregister(YPPASSWDPROG, YPPASSWDVERS);
104 svc_unregister(MASTER_YPPASSWDPROG, MASTER_YPPASSWDVERS);
109 static void reload(sig)
118 if (_rpcsvcstate == _IDLE) {
119 extern fd_set svc_fdset;
123 if (_rpcfdtype == SOCK_DGRAM) {
128 size = getdtablesize();
130 for (i = 0, openfd = 0; i < size && openfd < 2; i++)
131 if (FD_ISSET(i, &svc_fdset))
138 if (_rpcsvcstate == _SERVED)
139 _rpcsvcstate = _IDLE;
141 (void) signal(SIGALRM, (SIG_PF) closedown);
142 (void) alarm(_RPCSVC_CLOSEDOWN/2);
147 fprintf(stderr, "%s\n%s\n",
148 "usage: rpc.yppasswdd [-t master.passwd file] [-d domain] [-p path] [-s]",
149 " [-f] [-m] [-i] [-a] [-v] [-u] [-h]");
158 register SVCXPRT *transp = NULL;
161 struct sockaddr_in saddr;
162 int asize = sizeof (saddr);
165 char myname[MAXHOSTNAMELEN + 2];
170 while ((ch = getopt(argc, argv, "t:d:p:sfamuivh")) != -1) {
173 passfile_default = optarg;
176 yppasswd_domain = optarg;
209 if (yppasswd_domain == NULL) {
210 if (yp_get_default_domain(&yppasswd_domain)) {
211 yp_error("no domain specified and system domain \
212 name isn't set -- aborting");
219 if (getrpcport("localhost", YPPROG, YPVERS, IPPROTO_UDP) <= 0) {
220 yp_error("no ypserv processes registered with local portmap");
221 yp_error("this host is not an NIS server -- aborting");
225 if ((mastername = ypxfr_get_master(yppasswd_domain, "passwd.byname",
226 "localhost",0)) == NULL) {
227 yp_error("can't get name of NIS master server for domain %s",
232 if (gethostname((char *)&myname, sizeof(myname)) == -1) {
233 yp_error("can't get local hostname: %s", strerror(errno));
237 if (strncasecmp(mastername, (char *)&myname, sizeof(myname))) {
238 yp_error("master of %s is %s, but we are %s",
239 "passwd.byname", mastername, myname);
240 yp_error("this host is not the NIS master server for \
241 the %s domain -- aborting", yppasswd_domain);
247 if (getsockname(0, (struct sockaddr *)&saddr, &asize) == 0) {
248 int ssize = sizeof (int);
250 if (saddr.sin_family != AF_INET)
252 if (getsockopt(0, SOL_SOCKET, SO_TYPE,
253 (char *)&_rpcfdtype, &ssize) == -1)
258 openlog("rpc.yppasswdd", LOG_PID, LOG_DAEMON);
262 err(1,"cannot fork");
265 openlog("rpc.yppasswdd", LOG_PID, LOG_DAEMON);
267 (void) pmap_unset(YPPASSWDPROG, YPPASSWDVERS);
268 (void) pmap_unset(MASTER_YPPASSWDPROG, MASTER_YPPASSWDVERS);
272 if ((_rpcfdtype == 0) || (_rpcfdtype == SOCK_DGRAM)) {
273 transp = svcudp_create(sock);
274 if (transp == NULL) {
275 yp_error("cannot create udp service.");
280 if (!svc_register(transp, YPPASSWDPROG, YPPASSWDVERS, yppasswdprog_1, proto)) {
281 yp_error("unable to register (YPPASSWDPROG, YPPASSWDVERS, udp).");
286 if ((_rpcfdtype == 0) || (_rpcfdtype == SOCK_STREAM)) {
287 transp = svctcp_create(sock, 0, 0);
288 if (transp == NULL) {
289 yp_error("cannot create tcp service.");
294 if (!svc_register(transp, YPPASSWDPROG, YPPASSWDVERS, yppasswdprog_1, proto)) {
295 yp_error("unable to register (YPPASSWDPROG, YPPASSWDVERS, tcp).");
301 transp = svcunix_create(sock, 0, 0, sockname);
302 if (transp == NULL) {
303 yp_error("cannot create AF_LOCAL service.");
306 if (!svc_register(transp, MASTER_YPPASSWDPROG, MASTER_YPPASSWDVERS, master_yppasswdprog_1, 0)) {
307 yp_error("unable to register (MASTER_YPPASSWDPROG, MASTER_YPPASSWDVERS, unix).");
310 /* Only root may connect() to the AF_UNIX link. */
311 if (chmod(sockname, 0))
312 err(1, "chmod of %s failed", sockname);
314 if (transp == (SVCXPRT *)NULL) {
315 yp_error("could not create a handle");
319 (void) signal(SIGALRM, (SIG_PF) closedown);
320 (void) alarm(_RPCSVC_CLOSEDOWN/2);
322 /* set up resource limits and block signals */
325 /* except SIGCHLD, which we need to catch */
327 signal(SIGTERM, (SIG_PF) terminate);
329 signal(SIGHUP, (SIG_PF) reload);
332 yp_error("svc_run returned");