1 /* 2 * Copyright (c) 1995 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 * $Id: yp_dbwrite.c,v 1.9 1996/02/04 04:08:11 wpaul Exp wpaul $ 33 * 34 */ 35 #include <stdio.h> 36 #include <stdlib.h> 37 #include <fcntl.h> 38 #include <string.h> 39 #include <limits.h> 40 #include <unistd.h> 41 #include <db.h> 42 #include <sys/stat.h> 43 #include <errno.h> 44 #include <paths.h> 45 #include <rpcsvc/yp.h> 46 #include "ypxfr_extern.h" 47 48 #ifndef lint 49 static const char rcsid[] = "$Id: yp_dbwrite.c,v 1.9 1996/02/04 04:08:11 wpaul Exp wpaul $"; 50 #endif 51 52 #define PERM_SECURE (S_IRUSR|S_IWUSR) 53 54 /* 55 * Open a DB database read/write 56 */ 57 DB *yp_open_db_rw(domain, map) 58 const char *domain; 59 const char *map; 60 { 61 DB *dbp; 62 char buf[1025]; 63 64 65 yp_errno = YP_TRUE; 66 67 if (map[0] == '.' || strchr(map, '/')) { 68 yp_errno = YP_BADARGS; 69 return (NULL); 70 } 71 72 snprintf(buf, sizeof(buf), "%s/%s/%s", yp_dir, domain, map); 73 74 dbp = dbopen(buf,O_RDWR|O_EXLOCK|O_EXCL|O_CREAT, PERM_SECURE, DB_HASH, &openinfo); 75 76 if (dbp == NULL) { 77 switch(errno) { 78 case ENOENT: 79 yp_errno = YP_NOMAP; 80 break; 81 case EFTYPE: 82 yp_errno = YP_BADDB; 83 break; 84 default: 85 yp_errno = YP_YPERR; 86 break; 87 } 88 } 89 90 return (dbp); 91 } 92 93 int yp_put_record(dbp,key,data) 94 DB *dbp; 95 DBT *key; 96 DBT *data; 97 { 98 int rval; 99 100 if ((rval = (dbp->put)(dbp,key,data,R_NOOVERWRITE))) { 101 switch(rval) { 102 case 1: 103 return(YP_FALSE); 104 break; 105 case -1: 106 default: 107 (void)(dbp->close)(dbp); 108 return(YP_BADDB); 109 break; 110 } 111 } 112 113 return(YP_TRUE); 114 } 115