1 /* 2 * Copyright (c) 1996 3 * Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by Bill Paul. 16 * 4. Neither the name of the author nor the names of any co-contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33 #ifndef lint 34 static const char rcsid[] = 35 "$FreeBSD$"; 36 #endif /* not lint */ 37 38 #include <sys/fcntl.h> 39 40 #include <stdio.h> 41 #include <string.h> 42 #include <errno.h> 43 #include <limits.h> 44 #include <db.h> 45 #include <unistd.h> 46 struct dom_binding {}; 47 #include <rpcsvc/ypclnt.h> 48 #include <rpcsvc/ypupdate_prot.h> 49 #include "ypxfr_extern.h" 50 #include "ypupdated_extern.h" 51 52 static int 53 yp_domake(char *map, char *domain) 54 { 55 int pid; 56 57 switch ((pid = fork())) { 58 case 0: 59 execlp(MAP_UPDATE_PATH, MAP_UPDATE, map, domain, (char *)NULL); 60 yp_error("couldn't exec map update process: %s", 61 strerror(errno)); 62 exit(1); 63 break; 64 case -1: 65 yp_error("fork() failed: %s", strerror(errno)); 66 return(YPERR_YPERR); 67 break; 68 default: 69 children++; 70 break; 71 } 72 73 return(0); 74 } 75 76 int 77 ypmap_update(char *netname, char *map, unsigned int op, unsigned int keylen, 78 char *keyval, unsigned int datlen, char *datval) 79 { 80 DB *dbp; 81 DBT key = { NULL, 0 }, data = { NULL, 0 }; 82 char *yp_last = "YP_LAST_MODIFIED"; 83 char yplastbuf[YPMAXRECORD]; 84 char *domptr; 85 int rval = 0; 86 87 if ((domptr = strchr(netname, '@')) == NULL) 88 return(ERR_ACCESS); 89 domptr++; 90 91 92 dbp = yp_open_db_rw(domptr, map, O_RDWR); 93 if (dbp == NULL) 94 return(ERR_DBASE); 95 96 key.data = keyval; 97 key.size = keylen; 98 data.data = datval; 99 data.size = datlen; 100 101 switch (op) { 102 case YPOP_DELETE: /* delete this entry */ 103 rval = yp_del_record(dbp, &key); 104 if (rval == YP_TRUE) 105 rval = 0; 106 break; 107 case YPOP_INSERT: /* add, do not change */ 108 rval = yp_put_record(dbp, &key, &data, 0); 109 if (rval == YP_TRUE) 110 rval = 0; 111 break; 112 case YPOP_STORE: /* add, or change */ 113 rval = yp_put_record(dbp, &key, &data, 1); 114 if (rval == YP_TRUE) 115 rval = 0; 116 break; 117 case YPOP_CHANGE: /* change, do not add */ 118 if (yp_get_record(domptr, map, &key, &data, 0) != YP_TRUE) { 119 rval = ERR_KEY; 120 break; 121 } 122 rval = yp_put_record(dbp, &key, &data, 1); 123 if (rval == YP_TRUE) 124 rval = 0; 125 break; 126 default: 127 yp_error("unknown update command: (%d)", op); 128 } 129 130 if (rval) { 131 (void)(dbp->close)(dbp); 132 return(rval); 133 } 134 135 snprintf(yplastbuf, sizeof(yplastbuf), "%lu", time(NULL)); 136 key.data = yp_last; 137 key.size = strlen(yp_last); 138 data.data = (char *)&yplastbuf; 139 data.size = strlen(yplastbuf); 140 if (yp_put_record(dbp, &key, &data, 1) != YP_TRUE) { 141 yp_error("failed to update timestamp in %s/%s", domptr, map); 142 (void)(dbp->close)(dbp); 143 return(ERR_DBASE); 144 } 145 146 (void)(dbp->close)(dbp); 147 return(yp_domake(map, domptr)); 148 } 149