ypxfr_main.c revision 90298
113007Swpaul/* 213007Swpaul * Copyright (c) 1995 313007Swpaul * Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved. 413007Swpaul * 513007Swpaul * Redistribution and use in source and binary forms, with or without 613007Swpaul * modification, are permitted provided that the following conditions 713007Swpaul * are met: 813007Swpaul * 1. Redistributions of source code must retain the above copyright 913007Swpaul * notice, this list of conditions and the following disclaimer. 1013007Swpaul * 2. Redistributions in binary form must reproduce the above copyright 1113007Swpaul * notice, this list of conditions and the following disclaimer in the 1213007Swpaul * documentation and/or other materials provided with the distribution. 1313007Swpaul * 3. All advertising materials mentioning features or use of this software 1413007Swpaul * must display the following acknowledgement: 1513007Swpaul * This product includes software developed by Bill Paul. 1613007Swpaul * 4. Neither the name of the author nor the names of any co-contributors 1713007Swpaul * may be used to endorse or promote products derived from this software 1813007Swpaul * without specific prior written permission. 1913007Swpaul * 2013007Swpaul * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND 2113007Swpaul * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 2213007Swpaul * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2313007Swpaul * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR CONTRIBUTORS BE LIABLE 2413007Swpaul * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2513007Swpaul * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2613007Swpaul * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2713007Swpaul * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2813007Swpaul * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2913007Swpaul * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 3013007Swpaul * SUCH DAMAGE. 3113007Swpaul */ 3231626Scharnier 3331626Scharnier#ifndef lint 3431626Scharnierstatic const char rcsid[] = 3550476Speter "$FreeBSD: head/libexec/ypxfr/ypxfr_main.c 90298 2002-02-06 15:26:07Z des $"; 3631626Scharnier#endif /* not lint */ 3731626Scharnier 3831626Scharnier#include <errno.h> 3913007Swpaul#include <stdio.h> 4013007Swpaul#include <stdlib.h> 4113007Swpaul#include <string.h> 4213007Swpaul#include <syslog.h> 4331626Scharnier#include <unistd.h> 4413007Swpaul#include <sys/types.h> 4513007Swpaul#include <sys/param.h> 4613007Swpaul#include <sys/socket.h> 4713007Swpaul#include <netinet/in.h> 4813007Swpaul#include <arpa/inet.h> 4913007Swpaul#include <rpc/rpc.h> 5013376Swpaul#include <rpc/clnt.h> 5113007Swpaul#include <rpcsvc/yp.h> 5213007Swpaulstruct dom_binding {}; 5313007Swpaul#include <rpcsvc/ypclnt.h> 5416132Swpaul#include <rpcsvc/ypxfrd.h> 5513007Swpaul#include "ypxfr_extern.h" 5613007Swpaul 5713007Swpaulchar *progname = "ypxfr"; 5813007Swpaulchar *yp_dir = _PATH_YP; 5913007Swpaulint _rpcpmstart = 0; 6013007Swpaulint ypxfr_use_yplib = 0; /* Assume the worst. */ 6113007Swpaulint ypxfr_clear = 1; 6213007Swpaulint ypxfr_prognum = 0; 6313007Swpaulstruct sockaddr_in ypxfr_callback_addr; 6413007Swpaulstruct yppushresp_xfr ypxfr_resp; 6513007SwpaulDB *dbp; 6613007Swpaul 6790298Sdesstatic void 6890298Sdesypxfr_exit(ypxfrstat retval, char *temp) 6913007Swpaul{ 7013007Swpaul CLIENT *clnt; 7113007Swpaul int sock = RPC_ANYSOCK; 7213007Swpaul struct timeval timeout; 7313007Swpaul 7413007Swpaul /* Clean up no matter what happened previously. */ 7513007Swpaul if (temp != NULL) { 7613276Swpaul if (dbp != NULL) 7713276Swpaul (void)(dbp->close)(dbp); 7813007Swpaul if (unlink(temp) == -1) { 7913007Swpaul yp_error("failed to unlink %s",strerror(errno)); 8013007Swpaul } 8113007Swpaul } 8213007Swpaul 8346929Swpaul if (ypxfr_prognum) { 8413007Swpaul timeout.tv_sec = 20; 8513007Swpaul timeout.tv_usec = 0; 8613007Swpaul 8713007Swpaul if ((clnt = clntudp_create(&ypxfr_callback_addr, ypxfr_prognum, 8813007Swpaul 1, timeout, &sock)) == NULL) { 8946929Swpaul yp_error("%s", clnt_spcreateerror("failed to " 9046929Swpaul "establish callback handle")); 9113007Swpaul exit(1); 9213007Swpaul } 9313007Swpaul 9413007Swpaul ypxfr_resp.status = retval; 9513007Swpaul 9613007Swpaul if (yppushproc_xfrresp_1(&ypxfr_resp, clnt) == NULL) { 9713007Swpaul yp_error("%s", clnt_sperror(clnt, "callback failed")); 9813007Swpaul clnt_destroy(clnt); 9913007Swpaul exit(1); 10013007Swpaul } 10113007Swpaul clnt_destroy(clnt); 10213007Swpaul } else { 10313007Swpaul yp_error("Exiting: %s", ypxfrerr_string(retval)); 10413007Swpaul } 10513007Swpaul 10613007Swpaul exit(0); 10713007Swpaul} 10813007Swpaul 10990298Sdesstatic void 11090298Sdesusage(void) 11113007Swpaul{ 11213007Swpaul if (_rpcpmstart) { 11313007Swpaul ypxfr_exit(YPXFR_BADARGS,NULL); 11413007Swpaul } else { 11531626Scharnier fprintf(stderr, "%s\n%s\n%s\n", 11631626Scharnier "usage: ypxfr [-f] [-c] [-d target domain] [-h source host]", 11731626Scharnier " [-s source domain] [-p path]", 11831626Scharnier " [-C taskid program-number ipaddr port] mapname"); 11913007Swpaul exit(1); 12013007Swpaul } 12113007Swpaul} 12213007Swpaul 12390298Sdesint 12490298Sdesypxfr_foreach(int status, char *key, int keylen, char *val, int vallen, 12590298Sdes char *data) 12613007Swpaul{ 12713007Swpaul DBT dbkey, dbval; 12813007Swpaul 12913007Swpaul if (status != YP_TRUE) 13013007Swpaul return (status); 13113007Swpaul 13230008Swpaul /* 13330008Swpaul * XXX Do not attempt to write zero-length keys or 13430008Swpaul * data into a Berkeley DB hash database. It causes a 13530008Swpaul * strange failure mode where sequential searches get 13630008Swpaul * caught in an infinite loop. 13730008Swpaul */ 13830008Swpaul if (keylen) { 13930008Swpaul dbkey.data = key; 14030008Swpaul dbkey.size = keylen; 14130008Swpaul } else { 14230008Swpaul dbkey.data = ""; 14330008Swpaul dbkey.size = 1; 14430008Swpaul } 14530008Swpaul if (vallen) { 14630008Swpaul dbval.data = val; 14730008Swpaul dbval.size = vallen; 14830008Swpaul } else { 14930008Swpaul dbval.data = ""; 15030008Swpaul dbval.size = 1; 15130008Swpaul } 15213007Swpaul 15316132Swpaul if (yp_put_record(dbp, &dbkey, &dbval, 0) != YP_TRUE) 15413007Swpaul return(yp_errno); 15513007Swpaul 15613007Swpaul return (0); 15713007Swpaul} 15813007Swpaul 15931626Scharnierint 16090298Sdesmain(int argc, char *argv[]) 16113007Swpaul{ 16213007Swpaul int ch; 16313007Swpaul int ypxfr_force = 0; 16413007Swpaul char *ypxfr_dest_domain = NULL; 16513007Swpaul char *ypxfr_source_host = NULL; 16613007Swpaul char *ypxfr_source_domain = NULL; 16713007Swpaul char *ypxfr_local_domain = NULL; 16813007Swpaul char *ypxfr_master = NULL; 16913007Swpaul unsigned long ypxfr_order = -1, ypxfr_skew_check = -1; 17013007Swpaul char *ypxfr_mapname = NULL; 17113007Swpaul int ypxfr_args = 0; 17213007Swpaul char ypxfr_temp_map[MAXPATHLEN + 2]; 17313007Swpaul char tempmap[MAXPATHLEN + 2]; 17413007Swpaul char buf[MAXPATHLEN + 2]; 17513007Swpaul DBT key, data; 17619065Swpaul int remoteport; 17719181Swpaul int interdom = 0; 17819181Swpaul int secure = 0; 17913007Swpaul 18013007Swpaul debug = 1; 18113007Swpaul 18213007Swpaul if (!isatty(fileno(stderr))) { 18331626Scharnier openlog("ypxfr", LOG_PID, LOG_DAEMON); 18413007Swpaul _rpcpmstart = 1; 18513007Swpaul } 18613007Swpaul 18713007Swpaul if (argc < 2) 18813007Swpaul usage(); 18913007Swpaul 19024349Simp while ((ch = getopt(argc, argv, "fcd:h:s:p:C:")) != -1) { 19113007Swpaul int my_optind; 19290297Sdes switch (ch) { 19313007Swpaul case 'f': 19413007Swpaul ypxfr_force++; 19513007Swpaul ypxfr_args++; 19613007Swpaul break; 19713007Swpaul case 'c': 19813007Swpaul ypxfr_clear = 0; 19913007Swpaul ypxfr_args++; 20013007Swpaul break; 20113007Swpaul case 'd': 20213007Swpaul ypxfr_dest_domain = optarg; 20313007Swpaul ypxfr_args += 2; 20413007Swpaul break; 20513007Swpaul case 'h': 20613007Swpaul ypxfr_source_host = optarg; 20713007Swpaul ypxfr_args += 2; 20813007Swpaul break; 20913007Swpaul case 's': 21013007Swpaul ypxfr_source_domain = optarg; 21113007Swpaul ypxfr_args += 2; 21213007Swpaul break; 21313007Swpaul case 'p': 21413007Swpaul yp_dir = optarg; 21513007Swpaul ypxfr_args += 2; 21613007Swpaul break; 21713007Swpaul case 'C': 21813007Swpaul /* 21913007Swpaul * Whoever decided that the -C flag should take 22013007Swpaul * four arguments is a twit. 22113007Swpaul */ 22213007Swpaul my_optind = optind - 1; 22313007Swpaul if (argv[my_optind] == NULL || !strlen(argv[my_optind])) { 22413007Swpaul yp_error("transaction ID not specified"); 22513007Swpaul usage(); 22613007Swpaul } 22713007Swpaul ypxfr_resp.transid = atol(argv[my_optind]); 22813007Swpaul my_optind++; 22913007Swpaul if (argv[my_optind] == NULL || !strlen(argv[my_optind])) { 23013007Swpaul yp_error("RPC program number not specified"); 23113007Swpaul usage(); 23213007Swpaul } 23313007Swpaul ypxfr_prognum = atol(argv[my_optind]); 23413007Swpaul my_optind++; 23513007Swpaul if (argv[my_optind] == NULL || !strlen(argv[my_optind])) { 23613007Swpaul yp_error("address not specified"); 23713007Swpaul usage(); 23813007Swpaul } 23913007Swpaul if (!inet_aton(argv[my_optind], &ypxfr_callback_addr.sin_addr)) { 24013007Swpaul yp_error("failed to convert '%s' to IP addr", 24113007Swpaul argv[my_optind]); 24213007Swpaul exit(1); 24313007Swpaul } 24413007Swpaul my_optind++; 24513007Swpaul if (argv[my_optind] == NULL || !strlen(argv[my_optind])) { 24613007Swpaul yp_error("port not specified"); 24713007Swpaul usage(); 24813007Swpaul } 24913007Swpaul ypxfr_callback_addr.sin_port = htons((u_short)atoi(argv[my_optind])); 25013007Swpaul ypxfr_args += 5; 25113007Swpaul break; 25213007Swpaul default: 25313007Swpaul usage(); 25413007Swpaul break; 25513007Swpaul } 25613007Swpaul } 25713007Swpaul 25813007Swpaul ypxfr_mapname = argv[ypxfr_args + 1]; 25913007Swpaul 26013007Swpaul if (ypxfr_mapname == NULL) { 26113007Swpaul yp_error("no map name specified"); 26213007Swpaul usage(); 26313007Swpaul } 26413007Swpaul 26513007Swpaul /* Always the case. */ 26613007Swpaul ypxfr_callback_addr.sin_family = AF_INET; 26713007Swpaul 26813007Swpaul /* Determine if local NIS client facilities are turned on. */ 26913007Swpaul if (!yp_get_default_domain(&ypxfr_local_domain) && 27013007Swpaul _yp_check(&ypxfr_local_domain)) 27113007Swpaul ypxfr_use_yplib = 1; 27213007Swpaul 27313007Swpaul /* 27413007Swpaul * If no destination domain is specified, assume that the 27513007Swpaul * local default domain is to be used and try to obtain it. 27613007Swpaul * Fails if NIS client facilities are turned off. 27713007Swpaul */ 27813007Swpaul if (ypxfr_dest_domain == NULL) { 27913007Swpaul if (ypxfr_use_yplib) { 28013007Swpaul yp_get_default_domain(&ypxfr_dest_domain); 28113007Swpaul } else { 28213007Swpaul yp_error("no destination domain specified and \ 28313007Swpaulthe local domain name isn't set"); 28413007Swpaul ypxfr_exit(YPXFR_BADARGS,NULL); 28513007Swpaul } 28613007Swpaul } 28713007Swpaul 28813007Swpaul /* 28913007Swpaul * If a source domain is not specified, assume it to 29013007Swpaul * be the same as the destination domain. 29113007Swpaul */ 29213007Swpaul if (ypxfr_source_domain == NULL) { 29313007Swpaul ypxfr_source_domain = ypxfr_dest_domain; 29413007Swpaul } 29513007Swpaul 29613007Swpaul /* 29713007Swpaul * If the source host is not specified, assume it to be the 29813007Swpaul * master for the specified map. If local NIS client facilities 29913007Swpaul * are turned on, we can figure this out using yp_master(). 30013007Swpaul * If not, we have to see if a local copy of the map exists 30113007Swpaul * and extract its YP_MASTER_NAME record. If _that_ fails, 30213007Swpaul * we are stuck and must ask the user for more information. 30313007Swpaul */ 30413007Swpaul if (ypxfr_source_host == NULL) { 30513007Swpaul if (!ypxfr_use_yplib) { 30613007Swpaul /* 30713007Swpaul * Double whammy: NIS isn't turned on and the user 30813007Swpaul * didn't specify a source host. 30913007Swpaul */ 31013007Swpaul char *dptr; 31113007Swpaul key.data = "YP_MASTER_NAME"; 31213007Swpaul key.size = sizeof("YP_MASTER_NAME") - 1; 31313007Swpaul 31413007Swpaul if (yp_get_record(ypxfr_dest_domain, ypxfr_mapname, 31513007Swpaul &key, &data, 1) != YP_TRUE) { 31613007Swpaul yp_error("no source host specified"); 31713007Swpaul ypxfr_exit(YPXFR_BADARGS,NULL); 31813007Swpaul } 31913007Swpaul dptr = data.data; 32013007Swpaul dptr[data.size] = '\0'; 32113007Swpaul ypxfr_master = ypxfr_source_host = strdup(dptr); 32213007Swpaul } 32313007Swpaul } else { 32413007Swpaul if (ypxfr_use_yplib) 32513007Swpaul ypxfr_use_yplib = 0; 32613007Swpaul } 32713007Swpaul 32813007Swpaul if (ypxfr_master == NULL) { 32913007Swpaul if ((ypxfr_master = ypxfr_get_master(ypxfr_source_domain, 33013007Swpaul ypxfr_mapname, 33113007Swpaul ypxfr_source_host, 33213007Swpaul ypxfr_use_yplib)) == NULL) { 33313276Swpaul yp_error("failed to find master of %s in domain %s: %s", 33413276Swpaul ypxfr_mapname, ypxfr_source_domain, 33513276Swpaul ypxfrerr_string(yp_errno)); 33613007Swpaul ypxfr_exit(YPXFR_MADDR,NULL); 33713007Swpaul } 33813007Swpaul } 33913007Swpaul 34013007Swpaul /* 34113007Swpaul * If we got here and ypxfr_source_host is still undefined, 34213007Swpaul * it means we had to resort to using yp_master() to find the 34313007Swpaul * master server for the map. The source host and master should 34413007Swpaul * be identical. 34513007Swpaul */ 34613007Swpaul if (ypxfr_source_host == NULL) 34713007Swpaul ypxfr_source_host = ypxfr_master; 34813007Swpaul 34919065Swpaul /* 35019065Swpaul * Don't talk to ypservs on unprivileged ports. 35119065Swpaul */ 35219065Swpaul remoteport = getrpcport(ypxfr_source_host, YPPROG, YPVERS, IPPROTO_UDP); 35319065Swpaul if (remoteport >= IPPORT_RESERVED) { 35419065Swpaul yp_error("ypserv on %s not running on reserved port", 35519065Swpaul ypxfr_source_host); 35619065Swpaul ypxfr_exit(YPXFR_REFUSED, NULL); 35719065Swpaul } 35819065Swpaul 35913007Swpaul if ((ypxfr_order = ypxfr_get_order(ypxfr_source_domain, 36013007Swpaul ypxfr_mapname, 36113007Swpaul ypxfr_master, 0)) == 0) { 36213276Swpaul yp_error("failed to get order number of %s: %s", 36313376Swpaul ypxfr_mapname, yp_errno == YPXFR_SUCC ? 36413376Swpaul "map has order 0" : ypxfrerr_string(yp_errno)); 36513007Swpaul ypxfr_exit(YPXFR_YPERR,NULL); 36613007Swpaul } 36713007Swpaul 36819181Swpaul if (ypxfr_match(ypxfr_master, ypxfr_source_domain, ypxfr_mapname, 36919181Swpaul "YP_INTERDOMAIN", sizeof("YP_INTERDOMAIN") - 1)) 37019181Swpaul interdom++; 37119181Swpaul 37219181Swpaul if (ypxfr_match(ypxfr_master, ypxfr_source_domain, ypxfr_mapname, 37319181Swpaul "YP_SECURE", sizeof("YP_SECURE") - 1)) 37419181Swpaul secure++; 37519181Swpaul 37613007Swpaul key.data = "YP_LAST_MODIFIED"; 37713007Swpaul key.size = sizeof("YP_LAST_MODIFIED") - 1; 37890297Sdes 37913007Swpaul /* The order number is immaterial when the 'force' flag is set. */ 38013007Swpaul 38113007Swpaul if (!ypxfr_force) { 38213007Swpaul int ignore = 0; 38313007Swpaul if (yp_get_record(ypxfr_dest_domain,ypxfr_mapname,&key,&data,1) != YP_TRUE) { 38490297Sdes switch (yp_errno) { 38513007Swpaul case YP_NOKEY: 38613007Swpaul ypxfr_exit(YPXFR_FORCE,NULL); 38713007Swpaul break; 38813007Swpaul case YP_NOMAP: 38913007Swpaul /* 39013007Swpaul * If the map doesn't exist, we're 39113007Swpaul * creating it. Ignore the error. 39213007Swpaul */ 39313007Swpaul ignore++; 39413007Swpaul break; 39513007Swpaul case YP_BADDB: 39613007Swpaul default: 39713007Swpaul ypxfr_exit(YPXFR_DBM,NULL); 39813007Swpaul break; 39913007Swpaul } 40013007Swpaul } 40113007Swpaul if (!ignore && ypxfr_order <= atoi(data.data)) 40213007Swpaul ypxfr_exit(YPXFR_AGE, NULL); 40313007Swpaul 40413007Swpaul } 40513007Swpaul 40613007Swpaul /* Construct a temporary map file name */ 40713007Swpaul snprintf(tempmap, sizeof(tempmap), "%s.%d",ypxfr_mapname, getpid()); 40813007Swpaul snprintf(ypxfr_temp_map, sizeof(ypxfr_temp_map), "%s/%s/%s", yp_dir, 40913007Swpaul ypxfr_dest_domain, tempmap); 41013007Swpaul 41119065Swpaul if ((remoteport = getrpcport(ypxfr_source_host, YPXFRD_FREEBSD_PROG, 41219065Swpaul YPXFRD_FREEBSD_VERS, IPPROTO_TCP))) { 41319065Swpaul 41419065Swpaul /* Don't talk to rpc.ypxfrds on unprovileged ports. */ 41519065Swpaul if (remoteport >= IPPORT_RESERVED) { 41619065Swpaul yp_error("rpc.ypxfrd on %s not using privileged port", 41719065Swpaul ypxfr_source_host); 41819065Swpaul ypxfr_exit(YPXFR_REFUSED, NULL); 41919065Swpaul } 42019065Swpaul 42116132Swpaul /* Try to send using ypxfrd. If it fails, use old method. */ 42219065Swpaul if (!ypxfrd_get_map(ypxfr_source_host, ypxfr_mapname, 42316132Swpaul ypxfr_source_domain, ypxfr_temp_map)) 42416132Swpaul goto leave; 42516132Swpaul } 42616132Swpaul 42713007Swpaul /* Open the temporary map read/write. */ 42816132Swpaul if ((dbp = yp_open_db_rw(ypxfr_dest_domain, tempmap, 0)) == NULL) { 42913007Swpaul yp_error("failed to open temporary map file"); 43013007Swpaul ypxfr_exit(YPXFR_DBM,NULL); 43113007Swpaul } 43213007Swpaul 43313007Swpaul /* 43413007Swpaul * Fill in the keys we already know, such as the order number, 43513007Swpaul * master name, input file name (we actually make up a bogus 43613007Swpaul * name for that) and output file name. 43713007Swpaul */ 43838024Sbde snprintf(buf, sizeof(buf), "%lu", ypxfr_order); 43913007Swpaul data.data = buf; 44013007Swpaul data.size = strlen(buf); 44113007Swpaul 44216132Swpaul if (yp_put_record(dbp, &key, &data, 0) != YP_TRUE) { 44313007Swpaul yp_error("failed to write order number to database"); 44413007Swpaul ypxfr_exit(YPXFR_DBM,&ypxfr_temp_map); 44513007Swpaul } 44613007Swpaul 44713007Swpaul key.data = "YP_MASTER_NAME"; 44813007Swpaul key.size = sizeof("YP_MASTER_NAME") - 1; 44913007Swpaul data.data = ypxfr_master; 45013007Swpaul data.size = strlen(ypxfr_master); 45113007Swpaul 45216132Swpaul if (yp_put_record(dbp, &key, &data, 0) != YP_TRUE) { 45313007Swpaul yp_error("failed to write master name to database"); 45413007Swpaul ypxfr_exit(YPXFR_DBM,&ypxfr_temp_map); 45513007Swpaul } 45613007Swpaul 45713007Swpaul key.data = "YP_DOMAIN_NAME"; 45813007Swpaul key.size = sizeof("YP_DOMAIN_NAME") - 1; 45913007Swpaul data.data = ypxfr_dest_domain; 46013007Swpaul data.size = strlen(ypxfr_dest_domain); 46113007Swpaul 46216132Swpaul if (yp_put_record(dbp, &key, &data, 0) != YP_TRUE) { 46313007Swpaul yp_error("failed to write domain name to database"); 46413007Swpaul ypxfr_exit(YPXFR_DBM,&ypxfr_temp_map); 46513007Swpaul } 46613007Swpaul 46713007Swpaul snprintf (buf, sizeof(buf), "%s:%s", ypxfr_source_host, ypxfr_mapname); 46813007Swpaul 46913007Swpaul key.data = "YP_INPUT_NAME"; 47013007Swpaul key.size = sizeof("YP_INPUT_NAME") - 1; 47113007Swpaul data.data = &buf; 47213007Swpaul data.size = strlen(buf); 47313007Swpaul 47416132Swpaul if (yp_put_record(dbp, &key, &data, 0) != YP_TRUE) { 47513007Swpaul yp_error("failed to write input name to database"); 47613007Swpaul ypxfr_exit(YPXFR_DBM,&ypxfr_temp_map); 47713007Swpaul 47813007Swpaul } 47913007Swpaul 48013007Swpaul snprintf(buf, sizeof(buf), "%s/%s/%s", yp_dir, ypxfr_dest_domain, 48113007Swpaul ypxfr_mapname); 48213007Swpaul 48313007Swpaul key.data = "YP_OUTPUT_NAME"; 48413007Swpaul key.size = sizeof("YP_OUTPUT_NAME") - 1; 48513007Swpaul data.data = &buf; 48613007Swpaul data.size = strlen(buf); 48713007Swpaul 48816132Swpaul if (yp_put_record(dbp, &key, &data, 0) != YP_TRUE) { 48913007Swpaul yp_error("failed to write output name to database"); 49013007Swpaul ypxfr_exit(YPXFR_DBM,&ypxfr_temp_map); 49113007Swpaul } 49213007Swpaul 49319181Swpaul if (interdom) { 49419181Swpaul key.data = "YP_INTERDOMAIN"; 49519181Swpaul key.size = sizeof("YP_INTERDOMAIN") - 1; 49619181Swpaul data.data = ""; 49719181Swpaul data.size = 0; 49819181Swpaul 49919181Swpaul if (yp_put_record(dbp, &key, &data, 0) != YP_TRUE) { 50019181Swpaul yp_error("failed to add interdomain flag to database"); 50119181Swpaul ypxfr_exit(YPXFR_DBM,&ypxfr_temp_map); 50219181Swpaul } 50319181Swpaul } 50419181Swpaul 50519181Swpaul if (secure) { 50619181Swpaul key.data = "YP_SECURE"; 50719181Swpaul key.size = sizeof("YP_SECURE") - 1; 50819181Swpaul data.data = ""; 50919181Swpaul data.size = 0; 51019181Swpaul 51119181Swpaul if (yp_put_record(dbp, &key, &data, 0) != YP_TRUE) { 51219181Swpaul yp_error("failed to add secure flag to database"); 51319181Swpaul ypxfr_exit(YPXFR_DBM,&ypxfr_temp_map); 51419181Swpaul } 51519181Swpaul } 51619181Swpaul 51713007Swpaul /* Now suck over the contents of the map from the master. */ 51813007Swpaul 51913007Swpaul if (ypxfr_get_map(ypxfr_mapname,ypxfr_source_domain, 52013007Swpaul ypxfr_source_host, ypxfr_foreach)){ 52113007Swpaul yp_error("failed to retrieve map from source host"); 52213007Swpaul ypxfr_exit(YPXFR_YPERR,&ypxfr_temp_map); 52313007Swpaul } 52413007Swpaul 52513007Swpaul (void)(dbp->close)(dbp); 52613276Swpaul dbp = NULL; /* <- yes, it seems this is necessary. */ 52713007Swpaul 52816132Swpaulleave: 52916132Swpaul 53016132Swpaul snprintf(buf, sizeof(buf), "%s/%s/%s", yp_dir, ypxfr_dest_domain, 53116132Swpaul ypxfr_mapname); 53216132Swpaul 53313007Swpaul /* Peek at the order number again and check for skew. */ 53413007Swpaul if ((ypxfr_skew_check = ypxfr_get_order(ypxfr_source_domain, 53513007Swpaul ypxfr_mapname, 53613007Swpaul ypxfr_master, 0)) == 0) { 53713276Swpaul yp_error("failed to get order number of %s: %s", 53813376Swpaul ypxfr_mapname, yp_errno == YPXFR_SUCC ? 53913376Swpaul "map has order 0" : ypxfrerr_string(yp_errno)); 54013007Swpaul ypxfr_exit(YPXFR_YPERR,&ypxfr_temp_map); 54113007Swpaul } 54213007Swpaul 54313007Swpaul if (ypxfr_order != ypxfr_skew_check) 54413007Swpaul ypxfr_exit(YPXFR_SKEW,&ypxfr_temp_map); 54513007Swpaul 54613007Swpaul /* 54713007Swpaul * Send a YPPROC_CLEAR to the local ypserv. 54813007Swpaul */ 54913376Swpaul if (ypxfr_clear) { 55013007Swpaul char in = 0; 55113007Swpaul char *out = NULL; 55213376Swpaul int stat; 55313376Swpaul if ((stat = callrpc("localhost",YPPROG,YPVERS,YPPROC_CLEAR, 55413376Swpaul xdr_void, (void *)&in, 55513376Swpaul xdr_void, (void *)out)) != RPC_SUCCESS) { 55613376Swpaul yp_error("failed to send 'clear' to local ypserv: %s", 55713376Swpaul clnt_sperrno((enum clnt_stat) stat)); 55813376Swpaul ypxfr_exit(YPXFR_CLEAR, &ypxfr_temp_map); 55913007Swpaul } 56013007Swpaul } 56113007Swpaul 56213376Swpaul /* 56313376Swpaul * Put the new map in place immediately. I'm not sure if the 56413376Swpaul * kernel does an unlink() and rename() atomically in the event 56513376Swpaul * that we move a new copy of a map over the top of an existing 56613376Swpaul * one, but there's less chance of a race condition happening 56713376Swpaul * than if we were to do the unlink() ourselves. 56813376Swpaul */ 56913007Swpaul if (rename(ypxfr_temp_map, buf) == -1) { 57013007Swpaul yp_error("rename(%s,%s) failed: %s", ypxfr_temp_map, buf, 57113007Swpaul strerror(errno)); 57213007Swpaul ypxfr_exit(YPXFR_FILE,NULL); 57313007Swpaul } 57413007Swpaul 57513007Swpaul ypxfr_exit(YPXFR_SUCC,NULL); 57613007Swpaul 57713007Swpaul return(1); 57813007Swpaul} 579