1 /* $NetBSD: info_nisplus.c,v 1.1.1.2 2009/03/20 20:26:49 christos Exp $ */ 2 3 /* 4 * Copyright (c) 1997-2009 Erez Zadok 5 * Copyright (c) 1989 Jan-Simon Pendry 6 * Copyright (c) 1989 Imperial College of Science, Technology & Medicine 7 * Copyright (c) 1989 The Regents of the University of California. 8 * All rights reserved. 9 * 10 * This code is derived from software contributed to Berkeley by 11 * Jan-Simon Pendry at Imperial College, London. 12 * 13 * Redistribution and use in source and binary forms, with or without 14 * modification, are permitted provided that the following conditions 15 * are met: 16 * 1. Redistributions of source code must retain the above copyright 17 * notice, this list of conditions and the following disclaimer. 18 * 2. Redistributions in binary form must reproduce the above copyright 19 * notice, this list of conditions and the following disclaimer in the 20 * documentation and/or other materials provided with the distribution. 21 * 3. All advertising materials mentioning features or use of this software 22 * must display the following acknowledgment: 23 * This product includes software developed by the University of 24 * California, Berkeley and its contributors. 25 * 4. Neither the name of the University nor the names of its contributors 26 * may be used to endorse or promote products derived from this software 27 * without specific prior written permission. 28 * 29 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 30 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 31 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 32 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 33 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 34 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 35 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 36 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 37 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 38 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 39 * SUCH DAMAGE. 40 * 41 * 42 * File: am-utils/amd/info_nisplus.c 43 * 44 */ 45 46 /* 47 * Get info from NIS+ (version 3) map 48 */ 49 50 #ifdef HAVE_CONFIG_H 51 # include <config.h> 52 #endif /* HAVE_CONFIG_H */ 53 #include <am_defs.h> 54 #include <amd.h> 55 #include <sun_map.h> 56 57 #define NISPLUS_KEY "key=" 58 #define NISPLUS_ORGDIR ".org_dir" 59 60 struct nis_callback_data { 61 mnt_map *ncd_m; 62 char *ncd_map; 63 void (*ncd_fn)(); 64 }; 65 66 struct nisplus_search_callback_data { 67 nis_name key; 68 char *value; 69 }; 70 71 72 static int 73 nisplus_callback(const nis_name key, const nis_object *value, voidp opaquedata) 74 { 75 char *kp = strnsave(ENTRY_VAL(value, 0), ENTRY_LEN(value, 0)); 76 char *vp = strnsave(ENTRY_VAL(value, 1), ENTRY_LEN(value, 1)); 77 struct nis_callback_data *data = (struct nis_callback_data *) opaquedata; 78 79 dlog("NISplus callback for <%s,%s>", kp, vp); 80 81 (*data->ncd_fn) (data->ncd_m, kp, vp); 82 83 /* 84 * We want more ... 85 */ 86 return FALSE; 87 } 88 89 90 int 91 nisplus_reload(mnt_map *m, char *map, void (*fn) ()) 92 { 93 int error = 0; 94 struct nis_callback_data data; 95 nis_result *result; 96 char *org; /* if map does not have ".org_dir" then append it */ 97 nis_name map_name; 98 size_t l; 99 100 org = strstr(map, NISPLUS_ORGDIR); 101 if (org == NULL) 102 org = NISPLUS_ORGDIR; 103 else 104 org = ""; 105 106 /* make some room for the NIS map_name */ 107 l = strlen(map) + sizeof(NISPLUS_ORGDIR); 108 map_name = xmalloc(l); 109 if (map_name == NULL) { 110 plog(XLOG_ERROR, "Unable to create map_name %s: %s", 111 map, strerror(ENOMEM)); 112 return ENOMEM; 113 } 114 xsnprintf(map_name, l, "%s%s", map, org); 115 116 data.ncd_m = m; 117 data.ncd_map = map_name; 118 data.ncd_fn = fn; 119 120 dlog("NISplus reload for %s", map); 121 122 result = nis_list(map_name, 123 EXPAND_NAME | FOLLOW_LINKS | FOLLOW_PATH, 124 (int (*)()) nisplus_callback, 125 &data); 126 127 /* free off the NIS map_name */ 128 XFREE(map_name); 129 130 if (result->status != NIS_SUCCESS && result->status != NIS_CBRESULTS) 131 error = 1; 132 133 if (error) 134 plog(XLOG_ERROR, "error grabbing nisplus map of %s: %s", 135 map, 136 nis_sperrno(result->status)); 137 138 nis_freeresult(result); 139 return error; 140 } 141 142 143 static int 144 nisplus_search_callback(const nis_name key, const nis_object *value, voidp opaquedata) 145 { 146 struct nisplus_search_callback_data *data = (struct nisplus_search_callback_data *) opaquedata; 147 148 dlog("NISplus search callback for <%s>", ENTRY_VAL(value, 0)); 149 dlog("NISplus search callback value <%s>", ENTRY_VAL(value, 1)); 150 151 data->value = strnsave(ENTRY_VAL(value, 1), ENTRY_LEN(value, 1)); 152 return TRUE; 153 } 154 155 156 /* 157 * Try to locate a key using NIS+. 158 */ 159 int 160 nisplus_search(mnt_map *m, char *map, char *key, char **val, time_t *tp) 161 { 162 nis_result *result; 163 int error = 0; 164 struct nisplus_search_callback_data data; 165 nis_name index; 166 char *org; /* if map does not have ".org_dir" then append it */ 167 size_t l; 168 169 org = strstr(map, NISPLUS_ORGDIR); 170 if (org == NULL) 171 org = NISPLUS_ORGDIR; 172 else 173 org = ""; 174 175 /* make some room for the NIS index */ 176 l = sizeof('[') /* for opening selection criteria */ 177 + sizeof(NISPLUS_KEY) 178 + strlen(key) 179 + sizeof(']') /* for closing selection criteria */ 180 + sizeof(',') /* + 1 for , separator */ 181 + strlen(map) 182 + sizeof(NISPLUS_ORGDIR); 183 index = xmalloc(l); 184 if (index == NULL) { 185 plog(XLOG_ERROR, 186 "Unable to create index %s: %s", 187 map, 188 strerror(ENOMEM)); 189 return ENOMEM; 190 } 191 xsnprintf(index, l, "[%s%s],%s%s", NISPLUS_KEY, key, map, org); 192 193 data.key = key; 194 data.value = NULL; 195 196 dlog("NISplus search for %s", index); 197 198 result = nis_list(index, 199 EXPAND_NAME | FOLLOW_LINKS | FOLLOW_PATH, 200 (int (*)()) nisplus_search_callback, 201 &data); 202 203 /* free off the NIS index */ 204 XFREE(index); 205 206 if (result == NULL) { 207 plog(XLOG_ERROR, "nisplus_search: %s: %s", map, strerror(ENOMEM)); 208 return ENOMEM; 209 } 210 211 /* 212 * Do something interesting with the return code 213 */ 214 switch (result->status) { 215 case NIS_SUCCESS: 216 case NIS_CBRESULTS: 217 218 if (data.value == NULL) { 219 nis_object *value = result->objects.objects_val; 220 dlog("NISplus search found <nothing>"); 221 dlog("NISplus search for %s: %s(%d)", 222 map, nis_sperrno(result->status), result->status); 223 224 if (value != NULL) 225 data.value = strnsave(ENTRY_VAL(value, 1), ENTRY_LEN(value, 1)); 226 } 227 228 if (m->cfm && (m->cfm->cfm_flags & CFM_SUN_MAP_SYNTAX)) { 229 *val = sun_entry2amd(key, data.value); 230 XFREE(data.value); /* strnsave malloc'ed it above */ 231 } else 232 *val = data.value; 233 234 if (*val) { 235 error = 0; 236 dlog("NISplus search found %s", *val); 237 } else { 238 error = ENOENT; 239 dlog("NISplus search found nothing"); 240 } 241 242 *tp = 0; 243 break; 244 245 case NIS_NOSUCHNAME: 246 dlog("NISplus search returned %d", result->status); 247 error = ENOENT; 248 break; 249 250 default: 251 plog(XLOG_ERROR, "nisplus_search: %s: %s", map, nis_sperrno(result->status)); 252 error = EIO; 253 break; 254 } 255 nis_freeresult(result); 256 257 return error; 258 } 259 260 261 int 262 nisplus_init(mnt_map *m, char *map, time_t *tp) 263 { 264 nis_result *result; 265 char *org; /* if map does not have ".org_dir" then append it */ 266 nis_name map_name; 267 int error = 0; 268 size_t l; 269 270 org = strstr(map, NISPLUS_ORGDIR); 271 if (org == NULL) 272 org = NISPLUS_ORGDIR; 273 else 274 org = ""; 275 276 /* make some room for the NIS map_name */ 277 l = strlen(map) + sizeof(NISPLUS_ORGDIR); 278 map_name = xmalloc(l); 279 if (map_name == NULL) { 280 plog(XLOG_ERROR, 281 "Unable to create map_name %s: %s", 282 map, 283 strerror(ENOMEM)); 284 return ENOMEM; 285 } 286 xsnprintf(map_name, l, "%s%s", map, org); 287 288 result = nis_lookup(map_name, (EXPAND_NAME | FOLLOW_LINKS | FOLLOW_PATH)); 289 290 /* free off the NIS map_name */ 291 XFREE(map_name); 292 293 if (result == NULL) { 294 plog(XLOG_ERROR, "NISplus init <%s>: %s", map, strerror(ENOMEM)); 295 return ENOMEM; 296 } 297 298 if (result->status != NIS_SUCCESS) { 299 dlog("NISplus init <%s>: %s (%d)", 300 map, nis_sperrno(result->status), result->status); 301 302 error = ENOENT; 303 } 304 305 *tp = 0; /* no time */ 306 nis_freeresult(result); 307 return error; 308 } 309 310 311 int 312 nisplus_mtime(mnt_map *m, char *map, time_t *tp) 313 { 314 return nisplus_init(m,map, tp); 315 } 316