1331722Seadler/* 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 33114626Sobrien#include <sys/cdefs.h> 34114626Sobrien__FBSDID("$FreeBSD: stable/11/libexec/ypxfr/ypxfr_main.c 359754 2020-04-09 20:38:36Z kevans $"); 3531626Scharnier 3631626Scharnier#include <errno.h> 3713007Swpaul#include <stdio.h> 3813007Swpaul#include <stdlib.h> 3913007Swpaul#include <string.h> 4013007Swpaul#include <syslog.h> 4131626Scharnier#include <unistd.h> 4213007Swpaul#include <sys/types.h> 4313007Swpaul#include <sys/param.h> 4413007Swpaul#include <sys/socket.h> 4513007Swpaul#include <netinet/in.h> 4613007Swpaul#include <arpa/inet.h> 4713007Swpaul#include <rpc/rpc.h> 4813376Swpaul#include <rpc/clnt.h> 4913007Swpaul#include <rpcsvc/yp.h> 5013007Swpaul#include <rpcsvc/ypclnt.h> 5116132Swpaul#include <rpcsvc/ypxfrd.h> 5213007Swpaul#include "ypxfr_extern.h" 5313007Swpaul 54359754Skevansint debug = 1; 55359754Skevans 5613007Swpaulchar *progname = "ypxfr"; 5713007Swpaulchar *yp_dir = _PATH_YP; 5813007Swpaulint _rpcpmstart = 0; 59285926Saraujostatic int ypxfr_use_yplib = 0; /* Assume the worst. */ 60285926Saraujostatic int ypxfr_clear = 1; 61285926Saraujostatic int ypxfr_prognum = 0; 62285926Saraujostatic struct sockaddr_in ypxfr_callback_addr; 63285926Saraujostatic struct yppushresp_xfr ypxfr_resp; 64285926Saraujostatic DB *dbp; 6513007Swpaul 6690298Sdesstatic void 6790298Sdesypxfr_exit(ypxfrstat retval, char *temp) 6813007Swpaul{ 6913007Swpaul CLIENT *clnt; 7013007Swpaul int sock = RPC_ANYSOCK; 7113007Swpaul struct timeval timeout; 7213007Swpaul 7313007Swpaul /* Clean up no matter what happened previously. */ 7413007Swpaul if (temp != NULL) { 7513276Swpaul if (dbp != NULL) 7613276Swpaul (void)(dbp->close)(dbp); 7713007Swpaul if (unlink(temp) == -1) { 7813007Swpaul yp_error("failed to unlink %s",strerror(errno)); 7913007Swpaul } 8013007Swpaul } 8113007Swpaul 8246929Swpaul if (ypxfr_prognum) { 8313007Swpaul timeout.tv_sec = 20; 8413007Swpaul timeout.tv_usec = 0; 8513007Swpaul 8613007Swpaul if ((clnt = clntudp_create(&ypxfr_callback_addr, ypxfr_prognum, 8713007Swpaul 1, timeout, &sock)) == NULL) { 8846929Swpaul yp_error("%s", clnt_spcreateerror("failed to " 8946929Swpaul "establish callback handle")); 9013007Swpaul exit(1); 9113007Swpaul } 9213007Swpaul 93228600Sdim ypxfr_resp.status = (yppush_status)retval; 9413007Swpaul 9513007Swpaul if (yppushproc_xfrresp_1(&ypxfr_resp, clnt) == NULL) { 9613007Swpaul yp_error("%s", clnt_sperror(clnt, "callback failed")); 9713007Swpaul clnt_destroy(clnt); 9813007Swpaul exit(1); 9913007Swpaul } 10013007Swpaul clnt_destroy(clnt); 10113007Swpaul } else { 10213007Swpaul yp_error("Exiting: %s", ypxfrerr_string(retval)); 10313007Swpaul } 10413007Swpaul 10513007Swpaul exit(0); 10613007Swpaul} 10713007Swpaul 10890298Sdesstatic void 10990298Sdesusage(void) 11013007Swpaul{ 11113007Swpaul if (_rpcpmstart) { 11213007Swpaul ypxfr_exit(YPXFR_BADARGS,NULL); 11313007Swpaul } else { 11431626Scharnier fprintf(stderr, "%s\n%s\n%s\n", 11531626Scharnier "usage: ypxfr [-f] [-c] [-d target domain] [-h source host]", 11631626Scharnier " [-s source domain] [-p path]", 11731626Scharnier " [-C taskid program-number ipaddr port] mapname"); 11813007Swpaul exit(1); 11913007Swpaul } 12013007Swpaul} 12113007Swpaul 12290298Sdesint 12390298Sdesypxfr_foreach(int status, char *key, int keylen, char *val, int vallen, 12490298Sdes char *data) 12513007Swpaul{ 12613007Swpaul DBT dbkey, dbval; 12713007Swpaul 12813007Swpaul if (status != YP_TRUE) 12913007Swpaul return (status); 13013007Swpaul 13130008Swpaul /* 13230008Swpaul * XXX Do not attempt to write zero-length keys or 13330008Swpaul * data into a Berkeley DB hash database. It causes a 13430008Swpaul * strange failure mode where sequential searches get 13530008Swpaul * caught in an infinite loop. 13630008Swpaul */ 13730008Swpaul if (keylen) { 13830008Swpaul dbkey.data = key; 13930008Swpaul dbkey.size = keylen; 14030008Swpaul } else { 14130008Swpaul dbkey.data = ""; 14230008Swpaul dbkey.size = 1; 14330008Swpaul } 14430008Swpaul if (vallen) { 14530008Swpaul dbval.data = val; 14630008Swpaul dbval.size = vallen; 14730008Swpaul } else { 14830008Swpaul dbval.data = ""; 14930008Swpaul dbval.size = 1; 15030008Swpaul } 15113007Swpaul 15216132Swpaul if (yp_put_record(dbp, &dbkey, &dbval, 0) != YP_TRUE) 15313007Swpaul return(yp_errno); 15413007Swpaul 15513007Swpaul return (0); 15613007Swpaul} 15713007Swpaul 15831626Scharnierint 15990298Sdesmain(int argc, char *argv[]) 16013007Swpaul{ 16113007Swpaul int ch; 16213007Swpaul int ypxfr_force = 0; 16313007Swpaul char *ypxfr_dest_domain = NULL; 16413007Swpaul char *ypxfr_source_host = NULL; 16513007Swpaul char *ypxfr_source_domain = NULL; 16613007Swpaul char *ypxfr_local_domain = NULL; 16713007Swpaul char *ypxfr_master = NULL; 16813007Swpaul unsigned long ypxfr_order = -1, ypxfr_skew_check = -1; 16913007Swpaul char *ypxfr_mapname = NULL; 17013007Swpaul int ypxfr_args = 0; 17113007Swpaul char ypxfr_temp_map[MAXPATHLEN + 2]; 17213007Swpaul char tempmap[MAXPATHLEN + 2]; 17313007Swpaul char buf[MAXPATHLEN + 2]; 17413007Swpaul DBT key, data; 17519065Swpaul int remoteport; 17619181Swpaul int interdom = 0; 17719181Swpaul int secure = 0; 17813007Swpaul 17913007Swpaul if (!isatty(fileno(stderr))) { 18031626Scharnier openlog("ypxfr", LOG_PID, LOG_DAEMON); 18113007Swpaul _rpcpmstart = 1; 18213007Swpaul } 18313007Swpaul 18413007Swpaul if (argc < 2) 18513007Swpaul usage(); 18613007Swpaul 18724349Simp while ((ch = getopt(argc, argv, "fcd:h:s:p:C:")) != -1) { 18813007Swpaul int my_optind; 18990297Sdes switch (ch) { 19013007Swpaul case 'f': 19113007Swpaul ypxfr_force++; 19213007Swpaul ypxfr_args++; 19313007Swpaul break; 19413007Swpaul case 'c': 19513007Swpaul ypxfr_clear = 0; 19613007Swpaul ypxfr_args++; 19713007Swpaul break; 19813007Swpaul case 'd': 19913007Swpaul ypxfr_dest_domain = optarg; 20013007Swpaul ypxfr_args += 2; 20113007Swpaul break; 20213007Swpaul case 'h': 20313007Swpaul ypxfr_source_host = optarg; 20413007Swpaul ypxfr_args += 2; 20513007Swpaul break; 20613007Swpaul case 's': 20713007Swpaul ypxfr_source_domain = optarg; 20813007Swpaul ypxfr_args += 2; 20913007Swpaul break; 21013007Swpaul case 'p': 21113007Swpaul yp_dir = optarg; 21213007Swpaul ypxfr_args += 2; 21313007Swpaul break; 21413007Swpaul case 'C': 21513007Swpaul /* 21613007Swpaul * Whoever decided that the -C flag should take 21713007Swpaul * four arguments is a twit. 21813007Swpaul */ 21913007Swpaul my_optind = optind - 1; 22013007Swpaul if (argv[my_optind] == NULL || !strlen(argv[my_optind])) { 22113007Swpaul yp_error("transaction ID not specified"); 22213007Swpaul usage(); 22313007Swpaul } 22413007Swpaul ypxfr_resp.transid = atol(argv[my_optind]); 22513007Swpaul my_optind++; 22613007Swpaul if (argv[my_optind] == NULL || !strlen(argv[my_optind])) { 22713007Swpaul yp_error("RPC program number not specified"); 22813007Swpaul usage(); 22913007Swpaul } 23013007Swpaul ypxfr_prognum = atol(argv[my_optind]); 23113007Swpaul my_optind++; 23213007Swpaul if (argv[my_optind] == NULL || !strlen(argv[my_optind])) { 23313007Swpaul yp_error("address not specified"); 23413007Swpaul usage(); 23513007Swpaul } 23613007Swpaul if (!inet_aton(argv[my_optind], &ypxfr_callback_addr.sin_addr)) { 23713007Swpaul yp_error("failed to convert '%s' to IP addr", 23813007Swpaul argv[my_optind]); 23913007Swpaul exit(1); 24013007Swpaul } 24113007Swpaul my_optind++; 24213007Swpaul if (argv[my_optind] == NULL || !strlen(argv[my_optind])) { 24313007Swpaul yp_error("port not specified"); 24413007Swpaul usage(); 24513007Swpaul } 24613007Swpaul ypxfr_callback_addr.sin_port = htons((u_short)atoi(argv[my_optind])); 24713007Swpaul ypxfr_args += 5; 24813007Swpaul break; 24913007Swpaul default: 25013007Swpaul usage(); 25113007Swpaul break; 25213007Swpaul } 25313007Swpaul } 25413007Swpaul 25513007Swpaul ypxfr_mapname = argv[ypxfr_args + 1]; 25613007Swpaul 25713007Swpaul if (ypxfr_mapname == NULL) { 25813007Swpaul yp_error("no map name specified"); 25913007Swpaul usage(); 26013007Swpaul } 26113007Swpaul 26213007Swpaul /* Always the case. */ 26313007Swpaul ypxfr_callback_addr.sin_family = AF_INET; 26413007Swpaul 26513007Swpaul /* Determine if local NIS client facilities are turned on. */ 26613007Swpaul if (!yp_get_default_domain(&ypxfr_local_domain) && 26713007Swpaul _yp_check(&ypxfr_local_domain)) 26813007Swpaul ypxfr_use_yplib = 1; 26913007Swpaul 27013007Swpaul /* 27113007Swpaul * If no destination domain is specified, assume that the 27213007Swpaul * local default domain is to be used and try to obtain it. 27313007Swpaul * Fails if NIS client facilities are turned off. 27413007Swpaul */ 27513007Swpaul if (ypxfr_dest_domain == NULL) { 27613007Swpaul if (ypxfr_use_yplib) { 27713007Swpaul yp_get_default_domain(&ypxfr_dest_domain); 27813007Swpaul } else { 27913007Swpaul yp_error("no destination domain specified and \ 28013007Swpaulthe local domain name isn't set"); 28113007Swpaul ypxfr_exit(YPXFR_BADARGS,NULL); 28213007Swpaul } 28313007Swpaul } 28413007Swpaul 28513007Swpaul /* 28613007Swpaul * If a source domain is not specified, assume it to 28713007Swpaul * be the same as the destination domain. 28813007Swpaul */ 28913007Swpaul if (ypxfr_source_domain == NULL) { 29013007Swpaul ypxfr_source_domain = ypxfr_dest_domain; 29113007Swpaul } 29213007Swpaul 29313007Swpaul /* 29413007Swpaul * If the source host is not specified, assume it to be the 29513007Swpaul * master for the specified map. If local NIS client facilities 29613007Swpaul * are turned on, we can figure this out using yp_master(). 29713007Swpaul * If not, we have to see if a local copy of the map exists 29813007Swpaul * and extract its YP_MASTER_NAME record. If _that_ fails, 29913007Swpaul * we are stuck and must ask the user for more information. 30013007Swpaul */ 30113007Swpaul if (ypxfr_source_host == NULL) { 30213007Swpaul if (!ypxfr_use_yplib) { 30313007Swpaul /* 30413007Swpaul * Double whammy: NIS isn't turned on and the user 30513007Swpaul * didn't specify a source host. 30613007Swpaul */ 30713007Swpaul char *dptr; 30813007Swpaul key.data = "YP_MASTER_NAME"; 30913007Swpaul key.size = sizeof("YP_MASTER_NAME") - 1; 31013007Swpaul 31113007Swpaul if (yp_get_record(ypxfr_dest_domain, ypxfr_mapname, 31213007Swpaul &key, &data, 1) != YP_TRUE) { 31313007Swpaul yp_error("no source host specified"); 31413007Swpaul ypxfr_exit(YPXFR_BADARGS,NULL); 31513007Swpaul } 31613007Swpaul dptr = data.data; 31713007Swpaul dptr[data.size] = '\0'; 31813007Swpaul ypxfr_master = ypxfr_source_host = strdup(dptr); 31913007Swpaul } 32013007Swpaul } else { 32113007Swpaul if (ypxfr_use_yplib) 32213007Swpaul ypxfr_use_yplib = 0; 32313007Swpaul } 32413007Swpaul 32513007Swpaul if (ypxfr_master == NULL) { 32613007Swpaul if ((ypxfr_master = ypxfr_get_master(ypxfr_source_domain, 32713007Swpaul ypxfr_mapname, 32813007Swpaul ypxfr_source_host, 32913007Swpaul ypxfr_use_yplib)) == NULL) { 33013276Swpaul yp_error("failed to find master of %s in domain %s: %s", 33113276Swpaul ypxfr_mapname, ypxfr_source_domain, 332228600Sdim ypxfrerr_string((ypxfrstat)yp_errno)); 33313007Swpaul ypxfr_exit(YPXFR_MADDR,NULL); 33413007Swpaul } 33513007Swpaul } 33613007Swpaul 33713007Swpaul /* 33813007Swpaul * If we got here and ypxfr_source_host is still undefined, 33913007Swpaul * it means we had to resort to using yp_master() to find the 34013007Swpaul * master server for the map. The source host and master should 34113007Swpaul * be identical. 34213007Swpaul */ 34313007Swpaul if (ypxfr_source_host == NULL) 34413007Swpaul ypxfr_source_host = ypxfr_master; 34513007Swpaul 34619065Swpaul /* 34719065Swpaul * Don't talk to ypservs on unprivileged ports. 34819065Swpaul */ 34919065Swpaul remoteport = getrpcport(ypxfr_source_host, YPPROG, YPVERS, IPPROTO_UDP); 35019065Swpaul if (remoteport >= IPPORT_RESERVED) { 35119065Swpaul yp_error("ypserv on %s not running on reserved port", 35219065Swpaul ypxfr_source_host); 35319065Swpaul ypxfr_exit(YPXFR_REFUSED, NULL); 35419065Swpaul } 35519065Swpaul 35613007Swpaul if ((ypxfr_order = ypxfr_get_order(ypxfr_source_domain, 35713007Swpaul ypxfr_mapname, 35813007Swpaul ypxfr_master, 0)) == 0) { 35913276Swpaul yp_error("failed to get order number of %s: %s", 360283844Srodrigc ypxfr_mapname, yp_errno == YP_TRUE ? 361228600Sdim "map has order 0" : 362228600Sdim ypxfrerr_string((ypxfrstat)yp_errno)); 36313007Swpaul ypxfr_exit(YPXFR_YPERR,NULL); 36413007Swpaul } 36513007Swpaul 36619181Swpaul if (ypxfr_match(ypxfr_master, ypxfr_source_domain, ypxfr_mapname, 36719181Swpaul "YP_INTERDOMAIN", sizeof("YP_INTERDOMAIN") - 1)) 36819181Swpaul interdom++; 36919181Swpaul 37019181Swpaul if (ypxfr_match(ypxfr_master, ypxfr_source_domain, ypxfr_mapname, 37119181Swpaul "YP_SECURE", sizeof("YP_SECURE") - 1)) 37219181Swpaul secure++; 37319181Swpaul 37413007Swpaul key.data = "YP_LAST_MODIFIED"; 37513007Swpaul key.size = sizeof("YP_LAST_MODIFIED") - 1; 37690297Sdes 37713007Swpaul /* The order number is immaterial when the 'force' flag is set. */ 37813007Swpaul 37913007Swpaul if (!ypxfr_force) { 38013007Swpaul int ignore = 0; 38113007Swpaul if (yp_get_record(ypxfr_dest_domain,ypxfr_mapname,&key,&data,1) != YP_TRUE) { 38290297Sdes switch (yp_errno) { 38313007Swpaul case YP_NOKEY: 38413007Swpaul ypxfr_exit(YPXFR_FORCE,NULL); 38513007Swpaul break; 38613007Swpaul case YP_NOMAP: 38713007Swpaul /* 38813007Swpaul * If the map doesn't exist, we're 38913007Swpaul * creating it. Ignore the error. 39013007Swpaul */ 39113007Swpaul ignore++; 39213007Swpaul break; 39313007Swpaul case YP_BADDB: 39413007Swpaul default: 39513007Swpaul ypxfr_exit(YPXFR_DBM,NULL); 39613007Swpaul break; 39713007Swpaul } 39813007Swpaul } 39913007Swpaul if (!ignore && ypxfr_order <= atoi(data.data)) 40013007Swpaul ypxfr_exit(YPXFR_AGE, NULL); 40113007Swpaul 40213007Swpaul } 40313007Swpaul 40413007Swpaul /* Construct a temporary map file name */ 40513007Swpaul snprintf(tempmap, sizeof(tempmap), "%s.%d",ypxfr_mapname, getpid()); 40613007Swpaul snprintf(ypxfr_temp_map, sizeof(ypxfr_temp_map), "%s/%s/%s", yp_dir, 40713007Swpaul ypxfr_dest_domain, tempmap); 40813007Swpaul 40919065Swpaul if ((remoteport = getrpcport(ypxfr_source_host, YPXFRD_FREEBSD_PROG, 41019065Swpaul YPXFRD_FREEBSD_VERS, IPPROTO_TCP))) { 41119065Swpaul 41219065Swpaul /* Don't talk to rpc.ypxfrds on unprovileged ports. */ 41319065Swpaul if (remoteport >= IPPORT_RESERVED) { 41419065Swpaul yp_error("rpc.ypxfrd on %s not using privileged port", 41519065Swpaul ypxfr_source_host); 41619065Swpaul ypxfr_exit(YPXFR_REFUSED, NULL); 41719065Swpaul } 41819065Swpaul 41916132Swpaul /* Try to send using ypxfrd. If it fails, use old method. */ 42019065Swpaul if (!ypxfrd_get_map(ypxfr_source_host, ypxfr_mapname, 42116132Swpaul ypxfr_source_domain, ypxfr_temp_map)) 42216132Swpaul goto leave; 42316132Swpaul } 42416132Swpaul 42513007Swpaul /* Open the temporary map read/write. */ 42616132Swpaul if ((dbp = yp_open_db_rw(ypxfr_dest_domain, tempmap, 0)) == NULL) { 42713007Swpaul yp_error("failed to open temporary map file"); 42813007Swpaul ypxfr_exit(YPXFR_DBM,NULL); 42913007Swpaul } 43013007Swpaul 43113007Swpaul /* 43213007Swpaul * Fill in the keys we already know, such as the order number, 43313007Swpaul * master name, input file name (we actually make up a bogus 43413007Swpaul * name for that) and output file name. 43513007Swpaul */ 43638024Sbde snprintf(buf, sizeof(buf), "%lu", ypxfr_order); 43713007Swpaul data.data = buf; 43813007Swpaul data.size = strlen(buf); 43913007Swpaul 44016132Swpaul if (yp_put_record(dbp, &key, &data, 0) != YP_TRUE) { 44113007Swpaul yp_error("failed to write order number to database"); 44293979Sdes ypxfr_exit(YPXFR_DBM,ypxfr_temp_map); 44313007Swpaul } 44413007Swpaul 44513007Swpaul key.data = "YP_MASTER_NAME"; 44613007Swpaul key.size = sizeof("YP_MASTER_NAME") - 1; 44713007Swpaul data.data = ypxfr_master; 44813007Swpaul data.size = strlen(ypxfr_master); 44913007Swpaul 45016132Swpaul if (yp_put_record(dbp, &key, &data, 0) != YP_TRUE) { 45113007Swpaul yp_error("failed to write master name to database"); 45293979Sdes ypxfr_exit(YPXFR_DBM,ypxfr_temp_map); 45313007Swpaul } 45413007Swpaul 45513007Swpaul key.data = "YP_DOMAIN_NAME"; 45613007Swpaul key.size = sizeof("YP_DOMAIN_NAME") - 1; 45713007Swpaul data.data = ypxfr_dest_domain; 45813007Swpaul data.size = strlen(ypxfr_dest_domain); 45913007Swpaul 46016132Swpaul if (yp_put_record(dbp, &key, &data, 0) != YP_TRUE) { 46113007Swpaul yp_error("failed to write domain name to database"); 46293979Sdes ypxfr_exit(YPXFR_DBM,ypxfr_temp_map); 46313007Swpaul } 46413007Swpaul 46513007Swpaul snprintf (buf, sizeof(buf), "%s:%s", ypxfr_source_host, ypxfr_mapname); 46613007Swpaul 46713007Swpaul key.data = "YP_INPUT_NAME"; 46813007Swpaul key.size = sizeof("YP_INPUT_NAME") - 1; 46913007Swpaul data.data = &buf; 47013007Swpaul data.size = strlen(buf); 47113007Swpaul 47216132Swpaul if (yp_put_record(dbp, &key, &data, 0) != YP_TRUE) { 47313007Swpaul yp_error("failed to write input name to database"); 47493979Sdes ypxfr_exit(YPXFR_DBM,ypxfr_temp_map); 47513007Swpaul 47613007Swpaul } 47713007Swpaul 47813007Swpaul snprintf(buf, sizeof(buf), "%s/%s/%s", yp_dir, ypxfr_dest_domain, 47913007Swpaul ypxfr_mapname); 48013007Swpaul 48113007Swpaul key.data = "YP_OUTPUT_NAME"; 48213007Swpaul key.size = sizeof("YP_OUTPUT_NAME") - 1; 48313007Swpaul data.data = &buf; 48413007Swpaul data.size = strlen(buf); 48513007Swpaul 48616132Swpaul if (yp_put_record(dbp, &key, &data, 0) != YP_TRUE) { 48713007Swpaul yp_error("failed to write output name to database"); 48893979Sdes ypxfr_exit(YPXFR_DBM,ypxfr_temp_map); 48913007Swpaul } 49013007Swpaul 49119181Swpaul if (interdom) { 49219181Swpaul key.data = "YP_INTERDOMAIN"; 49319181Swpaul key.size = sizeof("YP_INTERDOMAIN") - 1; 49419181Swpaul data.data = ""; 49519181Swpaul data.size = 0; 49619181Swpaul 49719181Swpaul if (yp_put_record(dbp, &key, &data, 0) != YP_TRUE) { 49819181Swpaul yp_error("failed to add interdomain flag to database"); 49993979Sdes ypxfr_exit(YPXFR_DBM,ypxfr_temp_map); 50019181Swpaul } 50119181Swpaul } 50219181Swpaul 50319181Swpaul if (secure) { 50419181Swpaul key.data = "YP_SECURE"; 50519181Swpaul key.size = sizeof("YP_SECURE") - 1; 50619181Swpaul data.data = ""; 50719181Swpaul data.size = 0; 50819181Swpaul 50919181Swpaul if (yp_put_record(dbp, &key, &data, 0) != YP_TRUE) { 51019181Swpaul yp_error("failed to add secure flag to database"); 51193979Sdes ypxfr_exit(YPXFR_DBM,ypxfr_temp_map); 51219181Swpaul } 51319181Swpaul } 51419181Swpaul 51513007Swpaul /* Now suck over the contents of the map from the master. */ 51613007Swpaul 51713007Swpaul if (ypxfr_get_map(ypxfr_mapname,ypxfr_source_domain, 51813007Swpaul ypxfr_source_host, ypxfr_foreach)){ 51913007Swpaul yp_error("failed to retrieve map from source host"); 52093979Sdes ypxfr_exit(YPXFR_YPERR,ypxfr_temp_map); 52113007Swpaul } 52213007Swpaul 52313007Swpaul (void)(dbp->close)(dbp); 52413276Swpaul dbp = NULL; /* <- yes, it seems this is necessary. */ 52513007Swpaul 52616132Swpaulleave: 52716132Swpaul 52816132Swpaul snprintf(buf, sizeof(buf), "%s/%s/%s", yp_dir, ypxfr_dest_domain, 52916132Swpaul ypxfr_mapname); 53016132Swpaul 53113007Swpaul /* Peek at the order number again and check for skew. */ 53213007Swpaul if ((ypxfr_skew_check = ypxfr_get_order(ypxfr_source_domain, 53313007Swpaul ypxfr_mapname, 53413007Swpaul ypxfr_master, 0)) == 0) { 53513276Swpaul yp_error("failed to get order number of %s: %s", 536283844Srodrigc ypxfr_mapname, yp_errno == YP_TRUE ? 537228600Sdim "map has order 0" : 538228600Sdim ypxfrerr_string((ypxfrstat)yp_errno)); 53993979Sdes ypxfr_exit(YPXFR_YPERR,ypxfr_temp_map); 54013007Swpaul } 54113007Swpaul 54213007Swpaul if (ypxfr_order != ypxfr_skew_check) 54393979Sdes ypxfr_exit(YPXFR_SKEW,ypxfr_temp_map); 54413007Swpaul 54513007Swpaul /* 54613007Swpaul * Send a YPPROC_CLEAR to the local ypserv. 54713007Swpaul */ 54813376Swpaul if (ypxfr_clear) { 54913007Swpaul char in = 0; 55013007Swpaul char *out = NULL; 55113376Swpaul int stat; 55213376Swpaul if ((stat = callrpc("localhost",YPPROG,YPVERS,YPPROC_CLEAR, 553121538Speter (xdrproc_t)xdr_void, (void *)&in, 554121538Speter (xdrproc_t)xdr_void, (void *)out)) != RPC_SUCCESS) { 55513376Swpaul yp_error("failed to send 'clear' to local ypserv: %s", 55613376Swpaul clnt_sperrno((enum clnt_stat) stat)); 55793979Sdes ypxfr_exit(YPXFR_CLEAR, ypxfr_temp_map); 55813007Swpaul } 55913007Swpaul } 56013007Swpaul 56113376Swpaul /* 56213376Swpaul * Put the new map in place immediately. I'm not sure if the 56313376Swpaul * kernel does an unlink() and rename() atomically in the event 56413376Swpaul * that we move a new copy of a map over the top of an existing 56513376Swpaul * one, but there's less chance of a race condition happening 56613376Swpaul * than if we were to do the unlink() ourselves. 56713376Swpaul */ 56813007Swpaul if (rename(ypxfr_temp_map, buf) == -1) { 56913007Swpaul yp_error("rename(%s,%s) failed: %s", ypxfr_temp_map, buf, 57013007Swpaul strerror(errno)); 57113007Swpaul ypxfr_exit(YPXFR_FILE,NULL); 57213007Swpaul } 57313007Swpaul 57413007Swpaul ypxfr_exit(YPXFR_SUCC,NULL); 57513007Swpaul 57613007Swpaul return(1); 57713007Swpaul} 578