384 lines
8.5 KiB
C
384 lines
8.5 KiB
C
/* $NetBSD: yppush.c,v 1.6 1997/10/13 07:38:09 lukem Exp $ */
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/*
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* Copyright (c) 1995 Mats O Jansson <moj@stacken.kth.se>
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* 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 Mats O Jansson
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* 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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#ifndef lint
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__RCSID("$NetBSD: yppush.c,v 1.6 1997/10/13 07:38:09 lukem Exp $");
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#endif
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <sys/resource.h>
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#include <sys/wait.h>
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#include <ctype.h>
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#include <errno.h>
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#include <err.h>
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#include <fcntl.h>
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#include <netdb.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <signal.h>
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#include <unistd.h>
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#include <rpc/rpc.h>
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#include <rpc/xdr.h>
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#include <rpcsvc/yp_prot.h>
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#include <rpcsvc/ypclnt.h>
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#include "protos.h"
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#include "yplib_host.h"
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#include "ypdef.h"
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#include "ypdb.h"
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#include "yppush.h"
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extern char *__progname; /* from crt0.o */
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int main __P((int, char *[]));
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int pushit __P((int, char *, int, char *, int, char *));
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void push __P((int, char *));
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void req_xfr __P((pid_t, u_int, SVCXPRT *, char *, CLIENT *));
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void _svc_run __P((void));
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void cleanup __P((void));
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void usage __P((void));
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int Verbose = 0;
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u_int OrderNum;
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char Domain[YPMAXDOMAIN];
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char Map[YPMAXMAP];
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char LocalHost[YPMAXPEER];
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static DBM *yp_databas;
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int
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main(argc, argv)
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int argc;
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char *argv[];
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{
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struct ypall_callback ypcb;
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char *master, *domain, *map, *hostname;
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int c, r, i;
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datum o;
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char *ypmap = "ypservers";
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CLIENT *client;
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struct stat finfo;
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char order_key[YP_LAST_LEN] = YP_LAST_KEY;
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static char map_path[MAXPATHLEN];
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if (atexit(cleanup))
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err(1, "can't register cleanup function");
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domain = NULL;
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hostname = NULL;
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while ((c = getopt(argc, argv, "d:h:v")) != -1) {
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switch(c) {
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case 'd':
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domain = optarg;
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break;
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case 'h':
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hostname = optarg;
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break;
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case 'v':
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Verbose = 1;
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break;
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default:
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usage();
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/*NOTREACHED*/
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}
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}
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argv += optind; argc -= optind;
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if (argc != 1)
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usage();
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map = argv[0];
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if (domain == NULL)
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if ((c = yp_get_default_domain(&domain)))
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errx(1, "can't get YP domain name. Reason: %s",
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yperr_string(c));
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memset(Domain, 0, sizeof(Domain));
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snprintf(Domain, sizeof(Domain), "%s", domain);
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memset(Map, 0, sizeof(Map));
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snprintf(Map, sizeof(Map), "%s", map);
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/* Set up the hostname to be used for the xfr */
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localhostname(LocalHost, sizeof(LocalHost));
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/* Check domain */
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sprintf(map_path,"%s/%s",YP_DB_PATH,domain);
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if (!((stat(map_path, &finfo) == 0) &&
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((finfo.st_mode & S_IFMT) == S_IFDIR))) {
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fprintf(stderr,"yppush: Map does not exists.\n");
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exit(1);
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}
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/* Check map */
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memset(map_path, 0, sizeof(map_path));
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snprintf(map_path, sizeof(map_path), "%s/%s/%s%s", YP_DB_PATH,
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Domain, Map, YPDB_SUFFIX);
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if (stat(map_path, &finfo) != 0)
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errx(1, "map does not exist");
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/* Open the database */
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memset(map_path, 0, sizeof(map_path));
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snprintf(map_path, sizeof(map_path), "%s/%s/%s", YP_DB_PATH,
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Domain, Map);
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yp_databas = ypdb_open(map_path, 0, O_RDONLY);
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OrderNum=0xffffffff;
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if (yp_databas == NULL)
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err(1, "%s%s: cannot open database", map_path, YPDB_SUFFIX);
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else {
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o.dptr = (char *) &order_key;
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o.dsize = YP_LAST_LEN;
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o = ypdb_fetch(yp_databas, o);
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if (o.dptr == NULL)
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errx(1, "%s: cannot determine order number", Map);
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else {
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OrderNum = 0;
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for (i = 0; i < o.dsize - 1; i++)
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if (!isdigit(o.dptr[i]))
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OrderNum=0xffffffff;
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if (OrderNum != 0)
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errx(1, "%s: invalid order number `%s'",
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Map, o.dptr);
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else
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OrderNum = atoi(o.dptr);
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}
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}
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/* No longer need YP map. */
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ypdb_close(yp_databas);
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yp_databas = NULL;
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r = yp_bind(Domain);
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if (r != 0)
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errx(1, "%s", yperr_string(r));
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if (hostname != NULL)
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push(strlen(hostname), hostname);
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else {
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r = yp_master(Domain, ypmap, &master);
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if (r != 0)
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errx(1, "%s (map = %s)", yperr_string(r), ypmap);
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if (Verbose)
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printf("Contacting master for ypservers (%s).\n",
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master);
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client = yp_bind_host(master, YPPROG, YPVERS, 0, 1);
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ypcb.foreach = pushit;
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ypcb.data = NULL;
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r = yp_all_host(client, Domain, ypmap, &ypcb);
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if (r != 0)
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errx(1, "%s (map = %s)", yperr_string(r), ypmap);
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}
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exit (0);
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}
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void
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usage()
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{
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fprintf(stderr, "usage: %s [-d domainname] [-h host] [-v] mapname\n",
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__progname);
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exit(1);
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}
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void
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_svc_run()
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{
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fd_set readfds;
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struct timeval timeout;
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timeout.tv_sec = 60;
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timeout.tv_usec = 0;
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for(;;) {
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readfds = svc_fdset;
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switch (select(sysconf(_SC_OPEN_MAX), &readfds, NULL, NULL,
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&timeout)) {
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case -1:
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if (errno == EINTR)
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continue;
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warnx("_svc_run: select failed");
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return;
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case 0:
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errx(0, "Callback timed out.");
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default:
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svc_getreqset(&readfds);
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}
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}
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}
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void
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req_xfr(pid, prog, transp, host, client)
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pid_t pid;
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u_int prog;
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SVCXPRT *transp;
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char *host;
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CLIENT *client;
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{
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struct ypreq_xfr request;
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struct timeval tv;
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tv.tv_sec = 0;
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tv.tv_usec = 0;
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request.map_parms.domain = &Domain[0];
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request.map_parms.map = &Map[0];
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request.map_parms.owner = &LocalHost[0];
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request.map_parms.ordernum = OrderNum;
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request.transid = (u_int)pid;
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request.proto = prog;
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request.port = transp->xp_port;
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if (Verbose)
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printf("%d: %s(%d@%s) -> %s@%s\n", request.transid,
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request.map_parms.map, request.map_parms.ordernum,
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host, request.map_parms.owner, request.map_parms.domain);
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switch (clnt_call(client, YPPROC_XFR, xdr_ypreq_xfr, &request,
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xdr_void, NULL, tv)) {
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case RPC_SUCCESS:
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case RPC_TIMEDOUT:
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break;
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default:
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clnt_perror(client, "yppush: Cannot call YPPROC_XFR");
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kill(pid, SIGTERM);
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}
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}
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void
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push(inlen, indata)
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int inlen;
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char *indata;
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{
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char host[YPMAXPEER];
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CLIENT *client;
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SVCXPRT *transp;
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int sock = RPC_ANYSOCK;
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u_int prog;
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bool_t sts;
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pid_t pid;
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int status;
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struct rusage res;
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memset(host, 0, sizeof(host));
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snprintf(host, sizeof(host), "%*.*s", inlen, inlen, indata);
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client = clnt_create(host, YPPROG, YPVERS, "tcp");
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if (client == NULL) {
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if (Verbose)
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fprintf(stderr, "Target host: %s\n", host);
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clnt_pcreateerror("yppush: cannot create client");
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return;
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}
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transp = svcudp_create(sock);
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if (transp == NULL) {
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warnx("cannot create callback transport");
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return;
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}
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for (prog = 0x40000000; prog < 0x5fffffff; prog++) {
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if ((sts = svc_register(transp, prog, 1,
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yppush_xfrrespprog_1, IPPROTO_UDP)))
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break;
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}
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if (sts == FALSE) {
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warnx("cannot register callback");
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return;
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}
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switch ((pid = fork())) {
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case -1:
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err(1, "fork failed");
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case 0:
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_svc_run();
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exit(0);
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default:
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close(transp->xp_sock);
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req_xfr(pid, prog, transp, host, client);
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wait4(pid, &status, 0, &res);
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svc_unregister(prog, 1);
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if (client != NULL)
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clnt_destroy(client);
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}
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}
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int
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pushit(instatus, inkey, inkeylen, inval, invallen, indata)
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int instatus;
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char *inkey;
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int inkeylen;
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char *inval;
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int invallen;
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char *indata;
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{
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if (instatus != YP_TRUE)
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return instatus;
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push(inkeylen, inkey);
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return 0;
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}
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void
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cleanup()
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{
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/* Make sure the map file is closed. */
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if (yp_databas != NULL)
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ypdb_close(yp_databas);
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}
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