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https://github.com/freebsd/freebsd-src
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3d497e17eb
Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/
Similar commit in main:
(cherry picked from commit 1d386b48a5)
352 lines
8.8 KiB
C
352 lines
8.8 KiB
C
/*
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* SPDX-License-Identifier: BSD-4-Clause
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*
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* Copyright (c) 1995, 1996
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* Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Bill Paul.
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* 4. Neither the name of the author nor the names of any co-contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#include <sys/param.h>
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#include <sys/ioctl.h>
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#include <sys/stat.h>
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#include <sys/socket.h>
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#include <sys/time.h>
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#include <sys/resource.h>
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#include <netinet/in.h>
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#include <err.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <memory.h>
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#include <signal.h>
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#include <stdio.h>
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#include <stdlib.h> /* getenv, exit */
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#include <string.h> /* strcmp */
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#include <syslog.h>
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#include <unistd.h>
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#include <rpc/rpc.h>
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#include <rpc/rpc_com.h>
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#include <rpc/pmap_clnt.h> /* for pmap_unset */
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#include <rpcsvc/yp.h>
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#include <rpcsvc/ypclnt.h>
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#include "yppasswd.h"
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#include "yppasswdd_extern.h"
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#include "yppasswd_private.h"
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#include "ypxfr_extern.h"
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#include "yp_extern.h"
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#ifndef SIG_PF
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#define SIG_PF void(*)(int)
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#endif
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#ifdef DEBUG
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#define RPC_SVC_FG
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#endif
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#define _RPCSVC_CLOSEDOWN 120
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int _rpcpmstart = 0; /* Started by a port monitor ? */
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static int _rpcfdtype;
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/* Whether Stream or Datagram ? */
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/* States a server can be in wrt request */
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#define _IDLE 0
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#define _SERVED 1
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#define _SERVING 2
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int debug;
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static char _localhost[] = "localhost";
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static char _passwd_byname[] = "passwd.byname";
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extern int _rpcsvcstate; /* Set when a request is serviced */
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static char _progname[] = "rpc.yppasswdd";
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char *progname = _progname;
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static char _yp_dir[] = _PATH_YP;
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char *yp_dir = _yp_dir;
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static char _passfile_default[] = _PATH_YP "master.passwd";
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char *passfile_default = _passfile_default;
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char *passfile;
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char *yppasswd_domain = NULL;
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int no_chsh = 0;
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int no_chfn = 0;
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int allow_additions = 0;
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int multidomain = 0;
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int verbose = 0;
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int resvport = 1;
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int inplace = 0;
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char sockname[] = YP_SOCKNAME;
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static void
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terminate(int sig __unused)
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{
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rpcb_unset(YPPASSWDPROG, YPPASSWDVERS, NULL);
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rpcb_unset(MASTER_YPPASSWDPROG, MASTER_YPPASSWDVERS, NULL);
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unlink(sockname);
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exit(0);
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}
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static void
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reload(int sig __unused)
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{
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load_securenets();
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}
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static void
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closedown(int sig __unused)
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{
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if (_rpcsvcstate == _IDLE) {
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extern fd_set svc_fdset;
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static int size;
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int i, openfd;
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if (_rpcfdtype == SOCK_DGRAM) {
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unlink(sockname);
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exit(0);
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}
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if (size == 0) {
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size = getdtablesize();
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}
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for (i = 0, openfd = 0; i < size && openfd < 2; i++)
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if (FD_ISSET(i, &svc_fdset))
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openfd++;
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if (openfd <= 1) {
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unlink(sockname);
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exit(0);
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}
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}
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if (_rpcsvcstate == _SERVED)
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_rpcsvcstate = _IDLE;
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(void) signal(SIGALRM, (SIG_PF) closedown);
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(void) alarm(_RPCSVC_CLOSEDOWN/2);
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}
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static void
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usage(void)
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{
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fprintf(stderr, "%s\n%s\n",
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"usage: rpc.yppasswdd [-t master.passwd file] [-d domain] [-p path] [-s]",
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" [-f] [-m] [-i] [-a] [-v] [-u] [-h]");
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exit(1);
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}
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int
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main(int argc, char *argv[])
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{
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struct rlimit rlim;
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SVCXPRT *transp = NULL;
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struct sockaddr_in saddr;
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socklen_t asize = sizeof (saddr);
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struct netconfig *nconf;
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struct sigaction sa;
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void *localhandle;
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int ch;
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char *mastername;
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char myname[MAXHOSTNAMELEN + 2];
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int maxrec = RPC_MAXDATASIZE;
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debug = 1;
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while ((ch = getopt(argc, argv, "t:d:p:sfamuivh")) != -1) {
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switch (ch) {
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case 't':
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passfile_default = optarg;
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break;
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case 'd':
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yppasswd_domain = optarg;
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break;
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case 's':
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no_chsh++;
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break;
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case 'f':
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no_chfn++;
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break;
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case 'p':
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yp_dir = optarg;
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break;
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case 'a':
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allow_additions++;
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break;
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case 'm':
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multidomain++;
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break;
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case 'i':
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inplace++;
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break;
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case 'v':
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verbose++;
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break;
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case 'u':
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resvport = 0;
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break;
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default:
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case 'h':
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usage();
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break;
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}
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}
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if (yppasswd_domain == NULL) {
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if (yp_get_default_domain(&yppasswd_domain)) {
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yp_error("no domain specified and system domain \
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name isn't set -- aborting");
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usage();
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}
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}
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load_securenets();
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if (getrpcport(_localhost, YPPROG, YPVERS, IPPROTO_UDP) <= 0) {
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yp_error("no ypserv processes registered with local portmap");
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yp_error("this host is not an NIS server -- aborting");
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exit(1);
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}
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if ((mastername = ypxfr_get_master(yppasswd_domain,
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_passwd_byname, _localhost, 0)) == NULL) {
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yp_error("can't get name of NIS master server for domain %s",
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yppasswd_domain);
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exit(1);
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}
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if (gethostname((char *)&myname, sizeof(myname)) == -1) {
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yp_error("can't get local hostname: %s", strerror(errno));
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exit(1);
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}
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if (strncasecmp(mastername, (char *)&myname, sizeof(myname))) {
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yp_error("master of %s is %s, but we are %s",
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"passwd.byname", mastername, myname);
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yp_error("this host is not the NIS master server for \
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the %s domain -- aborting", yppasswd_domain);
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exit(1);
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}
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debug = 0;
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if (getsockname(0, (struct sockaddr *)&saddr, &asize) == 0) {
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socklen_t ssize = sizeof (int);
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if (saddr.sin_family != AF_INET)
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exit(1);
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if (getsockopt(0, SOL_SOCKET, SO_TYPE,
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(char *)&_rpcfdtype, &ssize) == -1)
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exit(1);
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_rpcpmstart = 1;
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}
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if (!debug && _rpcpmstart == 0) {
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if (daemon(0,0)) {
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err(1,"cannot fork");
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}
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}
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openlog("rpc.yppasswdd", LOG_PID, LOG_DAEMON);
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memset(&sa, 0, sizeof(sa));
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sa.sa_flags = SA_NOCLDWAIT;
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sigaction(SIGCHLD, &sa, NULL);
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rpcb_unset(YPPASSWDPROG, YPPASSWDVERS, NULL);
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rpcb_unset(MASTER_YPPASSWDPROG, MASTER_YPPASSWDVERS, NULL);
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rpc_control(RPC_SVC_CONNMAXREC_SET, &maxrec);
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if (svc_create(yppasswdprog_1, YPPASSWDPROG, YPPASSWDVERS, "netpath") == 0) {
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yp_error("cannot create yppasswd service.");
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exit(1);
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}
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if (svc_create(master_yppasswdprog_1, MASTER_YPPASSWDPROG,
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MASTER_YPPASSWDVERS, "netpath") == 0) {
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yp_error("cannot create master_yppasswd service.");
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exit(1);
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}
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nconf = NULL;
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localhandle = setnetconfig();
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while ((nconf = getnetconfig(localhandle)) != NULL) {
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if (nconf->nc_protofmly != NULL &&
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strcmp(nconf->nc_protofmly, NC_LOOPBACK) == 0)
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break;
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}
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if (nconf == NULL) {
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yp_error("getnetconfigent unix: %s", nc_sperror());
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exit(1);
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}
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unlink(sockname);
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transp = svcunix_create(RPC_ANYSOCK, 0, 0, sockname);
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if (transp == NULL) {
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yp_error("cannot create AF_LOCAL service.");
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exit(1);
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}
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if (!svc_reg(transp, MASTER_YPPASSWDPROG, MASTER_YPPASSWDVERS,
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master_yppasswdprog_1, nconf)) {
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yp_error("unable to register (MASTER_YPPASSWDPROG, \
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MASTER_YPPASSWDVERS, unix).");
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exit(1);
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}
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endnetconfig(localhandle);
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/* Only root may connect() to the AF_UNIX link. */
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if (chmod(sockname, 0))
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err(1, "chmod of %s failed", sockname);
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if (transp == (SVCXPRT *)NULL) {
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yp_error("could not create a handle");
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exit(1);
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}
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if (_rpcpmstart) {
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(void) signal(SIGALRM, (SIG_PF) closedown);
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(void) alarm(_RPCSVC_CLOSEDOWN/2);
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}
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/* Unlimited resource limits. */
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rlim.rlim_cur = rlim.rlim_max = RLIM_INFINITY;
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(void)setrlimit(RLIMIT_CPU, &rlim);
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(void)setrlimit(RLIMIT_FSIZE, &rlim);
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(void)setrlimit(RLIMIT_STACK, &rlim);
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(void)setrlimit(RLIMIT_DATA, &rlim);
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(void)setrlimit(RLIMIT_RSS, &rlim);
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/* Don't drop core (not really necessary, but GP's). */
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rlim.rlim_cur = rlim.rlim_max = 0;
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(void)setrlimit(RLIMIT_CORE, &rlim);
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/* Turn off signals. */
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(void)signal(SIGALRM, SIG_IGN);
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(void)signal(SIGHUP, (SIG_PF) reload);
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(void)signal(SIGINT, SIG_IGN);
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(void)signal(SIGPIPE, SIG_IGN);
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(void)signal(SIGQUIT, SIG_IGN);
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(void)signal(SIGTERM, (SIG_PF) terminate);
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svc_run();
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yp_error("svc_run returned");
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exit(1);
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/* NOTREACHED */
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}
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