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 1999-2003 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 #include <stdlib.h> 30 #include <libintl.h> 31 #include <stdio.h> 32 #include <errno.h> 33 #include <strings.h> 34 #include "ns_sldap.h" 35 #include "ns_internal.h" 36 37 /* 38 * getldaplaliasbyname() retrieves the aliases information from the LDAP server. 39 * This is requires that the LDAP naming information (ie. LDAP_CLIENT_CACHE 40 * file) is configured properly on the client machine. 41 * 42 * Return value: 43 * 0 = success; 44 * 1 = alias not found; 45 * -1 = other failure. Contents in answer are undefined. 46 */ 47 48 #define ALIAS_FILTER "(&(objectclass=mailgroup)(|(cn=%s)(mail=%s)))" 49 #define ALIAS_FILTER_SSD "(&(%%s)(|(cn=%s)(mail=%s)))" 50 #define MAIL_CN "cn" 51 #define MAIL_ATTRIBUTE "mail" 52 #define MAIL_MEMBER "mgrpRFC822MailMember" 53 54 /* 55 * This is a generic filter call back function for 56 * merging the filter from service search descriptor with 57 * an existing search filter. This routine expects userdata 58 * contain a format string with a single %s in it, and will 59 * use the format string with sprintf() to insert the SSD filter. 60 * 61 * This routine is passed to the __ns_ldap_list() API as the 62 * filter call back together with filter and userdata. For example, 63 * "(&(objectclass=mailgroup)(|(cn=abc)(mail=abc)))" as filter 64 * and "(&(%s)(|(cn=abc)(mail=abc)))" as userdata. 65 * This routine will then be called by __ns_ldap_list() to output 66 * "(&(dept=sds)(|(cn=abc)(mail=abc)))" as the real search 67 * filter, if the input SSD contains a filter "dpet=sds". 68 */ 69 int 70 __s_api_merge_SSD_filter(const ns_ldap_search_desc_t *desc, 71 char **realfilter, 72 const void *userdata) 73 { 74 int len; 75 76 /* sanity check */ 77 if (realfilter == NULL) 78 return (NS_LDAP_INVALID_PARAM); 79 *realfilter = NULL; 80 81 if (desc == NULL || desc->filter == NULL || 82 userdata == NULL) 83 return (NS_LDAP_INVALID_PARAM); 84 85 len = strlen(userdata) + strlen(desc->filter) + 1; 86 87 *realfilter = (char *)malloc(len); 88 if (*realfilter == NULL) 89 return (NS_LDAP_MEMORY); 90 91 (void) sprintf(*realfilter, (char *)userdata, 92 desc->filter); 93 94 return (NS_LDAP_SUCCESS); 95 } 96 int 97 __getldapaliasbyname(char *alias, char *answer, size_t ans_len) 98 { 99 char *service = "aliases"; 100 char filter[BUFSIZE]; 101 char userdata[BUFSIZE]; 102 char *attribute[2]; 103 ns_ldap_result_t *result = NULL; 104 ns_ldap_error_t *errorp = NULL; 105 int rc, i, j, len, comma; 106 ns_ldap_entry_t *entry = NULL; 107 char **attr_value = NULL; 108 109 if (!alias || !*alias || !answer || ans_len == 0) { 110 errno = EINVAL; 111 return (-1); 112 } 113 114 answer[0] = '\0'; 115 116 /* get the aliases */ 117 if (snprintf(filter, sizeof (filter), ALIAS_FILTER, alias, alias) < 0) { 118 errno = EINVAL; 119 return (-1); 120 } 121 122 /* get the userdata for __ns_ldap_list filter call back */ 123 if (snprintf(userdata, sizeof (userdata), ALIAS_FILTER_SSD, 124 alias, alias) < 0) { 125 errno = EINVAL; 126 return (-1); 127 } 128 129 attribute[0] = MAIL_MEMBER; 130 attribute[1] = NULL; 131 132 /* should we do hardlookup */ 133 rc = __ns_ldap_list(service, (const char *)filter, 134 __s_api_merge_SSD_filter, 135 (const char **)attribute, NULL, 0, &result, 136 &errorp, NULL, userdata); 137 138 if (rc == NS_LDAP_NOTFOUND) { 139 errno = ENOENT; 140 return (1); 141 } else if (rc != NS_LDAP_SUCCESS) { 142 #ifdef DEBUG 143 char *p; 144 (void) __ns_ldap_err2str(rc, &p); 145 if (errorp) { 146 if (errorp->message) 147 (void) fprintf(stderr, "%s (%s)\n", p, 148 errorp->message); 149 } else 150 (void) fprintf(stderr, "%s\n", p); 151 #endif /* DEBUG */ 152 (void) __ns_ldap_freeError(&errorp); 153 return (-1); 154 } 155 156 /* build the return value */ 157 answer[0] = '\0'; 158 len = 0; 159 comma = 0; 160 entry = result->entry; 161 for (i = 0; i < result->entries_count; i++) { 162 attr_value = __ns_ldap_getAttr(entry, MAIL_MEMBER); 163 if (attr_value == NULL) { 164 errno = ENOENT; 165 return (-1); 166 } 167 for (j = 0; attr_value[j]; j++) { 168 char *tmp, *newhead; 169 170 tmp = attr_value[j]; 171 while (*tmp == ' ' || *tmp == '\t' && *tmp != '\0') 172 tmp++; 173 newhead = tmp; 174 while (*tmp != '\0') tmp++; 175 while (*tmp == ' ' || *tmp == '\t' || *tmp == '\0' && 176 tmp != newhead) { 177 *tmp-- = '\0'; 178 } 179 len = len + comma + strlen(newhead); 180 if ((len + 1) > ans_len) { 181 (void) __ns_ldap_freeResult(&result); 182 errno = EOVERFLOW; 183 return (-1); 184 } 185 if (comma) 186 (void) strcat(answer, ","); 187 else 188 comma = 1; 189 (void) strcat(answer, newhead); 190 } 191 } 192 193 (void) __ns_ldap_freeResult(&result); 194 errno = 0; 195 return (0); 196 } 197