yp_dbupdate.c revision 79452
176612Stshiozak/* 276612Stshiozak * Copyright (c) 1996 376612Stshiozak * Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved. 476612Stshiozak * 576612Stshiozak * Redistribution and use in source and binary forms, with or without 676612Stshiozak * modification, are permitted provided that the following conditions 776612Stshiozak * are met: 876612Stshiozak * 1. Redistributions of source code must retain the above copyright 976612Stshiozak * notice, this list of conditions and the following disclaimer. 1076612Stshiozak * 2. Redistributions in binary form must reproduce the above copyright 1176612Stshiozak * notice, this list of conditions and the following disclaimer in the 1276612Stshiozak * documentation and/or other materials provided with the distribution. 1376612Stshiozak * 3. All advertising materials mentioning features or use of this software 1476612Stshiozak * must display the following acknowledgement: 1576612Stshiozak * This product includes software developed by Bill Paul. 1676612Stshiozak * 4. Neither the name of the author nor the names of any co-contributors 1776612Stshiozak * may be used to endorse or promote products derived from this software 1876612Stshiozak * without specific prior written permission. 1976612Stshiozak * 2076612Stshiozak * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND 2176612Stshiozak * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 2276612Stshiozak * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2376612Stshiozak * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR CONTRIBUTORS BE LIABLE 2476612Stshiozak * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2576612Stshiozak * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2676612Stshiozak * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2776612Stshiozak * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2876612Stshiozak * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2976612Stshiozak * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 3076612Stshiozak * SUCH DAMAGE. 3176612Stshiozak */ 3276612Stshiozak 3386170Sobrien#ifndef lint 3476612Stshiozakstatic const char rcsid[] = 3576612Stshiozak "$FreeBSD: head/usr.sbin/rpc.ypupdated/yp_dbupdate.c 79452 2001-07-09 09:24:06Z brian $"; 3676612Stshiozak#endif /* not lint */ 3776612Stshiozak 3876612Stshiozak#include <sys/fcntl.h> 3976612Stshiozak 4076612Stshiozak#include <stdio.h> 4176612Stshiozak#include <string.h> 4276612Stshiozak#include <errno.h> 4376612Stshiozak#include <limits.h> 4476612Stshiozak#include <db.h> 4576612Stshiozak#include <unistd.h> 4676612Stshiozakstruct dom_binding {}; 4776612Stshiozak#include <rpcsvc/ypclnt.h> 4876612Stshiozak#include <rpcsvc/ypupdate_prot.h> 4976612Stshiozak#include "ypxfr_extern.h" 5076612Stshiozak#include "ypupdated_extern.h" 5176612Stshiozak 5276612Stshiozakstatic int yp_domake(map, domain) 5376612Stshiozak char *map; 5476612Stshiozak char *domain; 5576612Stshiozak{ 5676612Stshiozak int pid; 5776612Stshiozak 5876612Stshiozak switch((pid = fork())) { 5976612Stshiozak case 0: 6076612Stshiozak execlp(MAP_UPDATE_PATH, MAP_UPDATE, map, domain, (char *)NULL); 6176612Stshiozak yp_error("couldn't exec map update process: %s", 6276612Stshiozak strerror(errno)); 6376612Stshiozak exit(1); 6476612Stshiozak break; 6576612Stshiozak case -1: 6676612Stshiozak yp_error("fork() failed: %s", strerror(errno)); 6776612Stshiozak return(YPERR_YPERR); 6876612Stshiozak break; 6976612Stshiozak default: 7076612Stshiozak children++; 7176612Stshiozak break; 7276612Stshiozak } 73 74 return(0); 75} 76 77int ypmap_update(netname, map, op, keylen, keyval, datlen, datval) 78 char *netname; 79 char *map; 80 unsigned int op; 81 unsigned int keylen; 82 char *keyval; 83 unsigned int datlen; 84 char *datval; 85{ 86 DB *dbp; 87 DBT key = { NULL, 0 }, data = { NULL, 0 }; 88 char *yp_last = "YP_LAST_MODIFIED"; 89 char yplastbuf[YPMAXRECORD]; 90 char *domptr; 91 int rval = 0; 92 93 if ((domptr = strchr(netname, '@')) == NULL) 94 return(ERR_ACCESS); 95 domptr++; 96 97 98 dbp = yp_open_db_rw(domptr, map, O_RDWR); 99 if (dbp == NULL) 100 return(ERR_DBASE); 101 102 key.data = keyval; 103 key.size = keylen; 104 data.data = datval; 105 data.size = datlen; 106 107 switch(op) { 108 case YPOP_DELETE: /* delete this entry */ 109 rval = yp_del_record(dbp, &key); 110 if (rval == YP_TRUE) 111 rval = 0; 112 break; 113 case YPOP_INSERT: /* add, do not change */ 114 rval = yp_put_record(dbp, &key, &data, 0); 115 if (rval == YP_TRUE) 116 rval = 0; 117 break; 118 case YPOP_STORE: /* add, or change */ 119 rval = yp_put_record(dbp, &key, &data, 1); 120 if (rval == YP_TRUE) 121 rval = 0; 122 break; 123 case YPOP_CHANGE: /* change, do not add */ 124 if (yp_get_record(domptr, map, &key, &data, 0) != YP_TRUE) { 125 rval = ERR_KEY; 126 break; 127 } 128 rval = yp_put_record(dbp, &key, &data, 1); 129 if (rval == YP_TRUE) 130 rval = 0; 131 break; 132 default: 133 yp_error("unknown update command: (%d)", op); 134 } 135 136 if (rval) { 137 (void)(dbp->close)(dbp); 138 return(rval); 139 } 140 141 snprintf(yplastbuf, sizeof(yplastbuf), "%lu", time(NULL)); 142 key.data = yp_last; 143 key.size = strlen(yp_last); 144 data.data = (char *)&yplastbuf; 145 data.size = strlen(yplastbuf); 146 if (yp_put_record(dbp, &key, &data, 1) != YP_TRUE) { 147 yp_error("failed to update timestamp in %s/%s", domptr, map); 148 (void)(dbp->close)(dbp); 149 return(ERR_DBASE); 150 } 151 152 (void)(dbp->close)(dbp); 153 return(yp_domake(map, domptr)); 154} 155