1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 /* 30 * DESCRIPTION: Contains helper functions for N2L 31 */ 32 33 /* 34 * Includes. WE WANT TO USE REAL DBM FUNCTIONS SO DO NOT INCLUDE SHIM_HOOKS.H. 35 */ 36 #include <unistd.h> 37 #include <syslog.h> 38 #include <ndbm.h> 39 #include <sys/systeminfo.h> 40 #include <errno.h> 41 #include <strings.h> 42 #include "ypsym.h" 43 #include "ypdefs.h" 44 #include "shim.h" 45 #include "yptol.h" 46 #include "stdio.h" 47 #include "../ldap_util.h" 48 49 /* Enable standard YP code features defined in ypdefs.h */ 50 USE_YP_PREFIX 51 USE_YP_MASTER_NAME 52 USE_YP_LAST_MODIFIED 53 USE_YP_INPUT_FILE 54 USE_YP_OUTPUT_NAME 55 USE_YP_DOMAIN_NAME 56 USE_YP_SECURE 57 USE_YP_INTERDOMAIN 58 USE_DBM 59 60 /* 61 * FUNCTION : alloc_temp_names() 62 * 63 * DESCRIPTION: Creates the set of temporary names for update files. It is 64 * the caller responsibility to free these. 65 * 66 * GIVEN : Name of map (fully qualified) 67 * 68 * RETURNS : SUCCESS with all names allocated. 69 * FAILURE with no names allocated. 70 */ 71 suc_code 72 alloc_temp_names(char *name, char **temp_entries, char **temp_ttl) 73 { 74 char *myself = "alloc_temp_names"; 75 76 *temp_entries = (char *)am(myself, strlen(name) + 77 strlen(TEMP_POSTFIX) + 1); 78 if (NULL == *temp_entries) { 79 return (FAILURE); 80 } 81 82 *temp_ttl = (char *)am(myself, strlen(TEMP_POSTFIX) + strlen(name) + 83 strlen(TTL_POSTFIX) + 1); 84 if (NULL == *temp_ttl) { 85 sfree(*temp_entries); 86 return (FAILURE); 87 } 88 89 strcpy(*temp_entries, name); 90 strcat(*temp_entries, TEMP_POSTFIX); 91 92 strcpy(*temp_ttl, name); 93 strcat(*temp_ttl, TTL_POSTFIX); 94 strcat(*temp_ttl, TEMP_POSTFIX); 95 96 return (SUCCESS); 97 } 98 99 /* 100 * FUNCTION : addpair() 101 * 102 * DESCRIPTION: Adds a single string entry to a dbm database. This is a copy of 103 * a function from makedbm but is useful enough to be put into 104 * shared code. 105 * 106 * GIVEN: Database handle 107 * Key 108 * Value 109 * 110 * RETURNS : SUCCESS = Value written 111 * FAILURE = Value not written. 112 */ 113 suc_code 114 addpair(DBM *fdb, char *str1, char *str2) 115 { 116 datum key; 117 datum content; 118 119 key.dptr = str1; 120 key.dsize = strlen(str1); 121 content.dptr = str2; 122 content.dsize = strlen(str2); 123 errno = 0; 124 if (dbm_store(fdb, key, content, DBM_REPLACE) != 0) { 125 logmsg(MSG_NOTIMECHECK, LOG_ERR, "Problem storing %.*s %.*s " 126 "(errno=%d)", 127 key.dptr, content.dptr, errno); 128 return (FAILURE); 129 } 130 return (SUCCESS); 131 } 132 133 /* 134 * FUNCTION : dump_datum() 135 * 136 * DESCRIPTION: Prints out a datum as a text string with no line feed. 137 */ 138 void 139 dump_datum(datum *dat) 140 { 141 int i; 142 143 if (NULL == dat) { 144 printf("NULL datum"); 145 return; 146 } 147 148 if (NULL == dat->dptr) { 149 printf("NULL dptr"); 150 return; 151 } 152 for (i = 0; i < dat->dsize; i++) 153 putchar(dat->dptr[i]); 154 } 155 156 /* 157 * FUNCTION : update_timestamp() 158 * 159 * DESCRIPTION: Adds, or updates, a maps last modified timestamp. 160 * 161 * GIVEN : Pointer to an open DBM file. 162 * 163 * RETURNS : SUCCESS = Entry created 164 * FAILURE = Entry not created 165 */ 166 suc_code 167 update_timestamp(DBM *db) 168 { 169 char time_string[MAX_ASCII_ORDER_NUMBER_LENGTH]; 170 struct timeval now; 171 172 if (0 != gettimeofday(&now, NULL)) { 173 logmsg(MSG_NOTIMECHECK, LOG_ERR, "Could not get time of day"); 174 return (FAILURE); 175 } 176 sprintf(time_string, "%010ld", (long)now.tv_sec); 177 if (SUCCESS != addpair(db, yp_last_modified, time_string)) 178 return (FAILURE); 179 180 return (SUCCESS); 181 } 182