1 /* $NetBSD: info_nisplus.c,v 1.1.1.3 2015/01/17 16:34:15 christos Exp $ */ 2 3 /* 4 * Copyright (c) 1997-2014 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. Neither the name of the University nor the names of its contributors 22 * may be used to endorse or promote products derived from this software 23 * without specific prior written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 28 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 35 * SUCH DAMAGE. 36 * 37 * 38 * File: am-utils/amd/info_nisplus.c 39 * 40 */ 41 42 /* 43 * Get info from NIS+ (version 3) map 44 */ 45 46 #ifdef HAVE_CONFIG_H 47 # include <config.h> 48 #endif /* HAVE_CONFIG_H */ 49 #include <am_defs.h> 50 #include <amd.h> 51 #include <sun_map.h> 52 53 #define NISPLUS_KEY "key=" 54 #define NISPLUS_ORGDIR ".org_dir" 55 56 struct nis_callback_data { 57 mnt_map *ncd_m; 58 char *ncd_map; 59 void (*ncd_fn)(); 60 }; 61 62 struct nisplus_search_callback_data { 63 nis_name key; 64 char *value; 65 }; 66 67 68 static int 69 nisplus_callback(const nis_name key, const nis_object *value, voidp opaquedata) 70 { 71 char *kp = strnsave(ENTRY_VAL(value, 0), ENTRY_LEN(value, 0)); 72 char *vp = strnsave(ENTRY_VAL(value, 1), ENTRY_LEN(value, 1)); 73 struct nis_callback_data *data = (struct nis_callback_data *) opaquedata; 74 75 dlog("NISplus callback for <%s,%s>", kp, vp); 76 77 (*data->ncd_fn) (data->ncd_m, kp, vp); 78 79 /* 80 * We want more ... 81 */ 82 return FALSE; 83 } 84 85 86 int 87 nisplus_reload(mnt_map *m, char *map, void (*fn) ()) 88 { 89 int error = 0; 90 struct nis_callback_data data; 91 nis_result *result; 92 char *org; /* if map does not have ".org_dir" then append it */ 93 nis_name map_name; 94 size_t l; 95 96 org = strstr(map, NISPLUS_ORGDIR); 97 if (org == NULL) 98 org = NISPLUS_ORGDIR; 99 else 100 org = ""; 101 102 /* make some room for the NIS map_name */ 103 l = strlen(map) + sizeof(NISPLUS_ORGDIR); 104 map_name = xmalloc(l); 105 if (map_name == NULL) { 106 plog(XLOG_ERROR, "Unable to create map_name %s: %s", 107 map, strerror(ENOMEM)); 108 return ENOMEM; 109 } 110 xsnprintf(map_name, l, "%s%s", map, org); 111 112 data.ncd_m = m; 113 data.ncd_map = map_name; 114 data.ncd_fn = fn; 115 116 dlog("NISplus reload for %s", map); 117 118 result = nis_list(map_name, 119 EXPAND_NAME | FOLLOW_LINKS | FOLLOW_PATH, 120 (int (*)()) nisplus_callback, 121 &data); 122 123 /* free off the NIS map_name */ 124 XFREE(map_name); 125 126 if (result->status != NIS_SUCCESS && result->status != NIS_CBRESULTS) 127 error = 1; 128 129 if (error) 130 plog(XLOG_ERROR, "error grabbing nisplus map of %s: %s", 131 map, 132 nis_sperrno(result->status)); 133 134 nis_freeresult(result); 135 return error; 136 } 137 138 139 static int 140 nisplus_search_callback(const nis_name key, const nis_object *value, voidp opaquedata) 141 { 142 struct nisplus_search_callback_data *data = (struct nisplus_search_callback_data *) opaquedata; 143 144 dlog("NISplus search callback for <%s>", ENTRY_VAL(value, 0)); 145 dlog("NISplus search callback value <%s>", ENTRY_VAL(value, 1)); 146 147 data->value = strnsave(ENTRY_VAL(value, 1), ENTRY_LEN(value, 1)); 148 return TRUE; 149 } 150 151 152 /* 153 * Try to locate a key using NIS+. 154 */ 155 int 156 nisplus_search(mnt_map *m, char *map, char *key, char **val, time_t *tp) 157 { 158 nis_result *result; 159 int error = 0; 160 struct nisplus_search_callback_data data; 161 nis_name index; 162 char *org; /* if map does not have ".org_dir" then append it */ 163 size_t l; 164 165 org = strstr(map, NISPLUS_ORGDIR); 166 if (org == NULL) 167 org = NISPLUS_ORGDIR; 168 else 169 org = ""; 170 171 /* make some room for the NIS index */ 172 l = sizeof('[') /* for opening selection criteria */ 173 + sizeof(NISPLUS_KEY) 174 + strlen(key) 175 + sizeof(']') /* for closing selection criteria */ 176 + sizeof(',') /* + 1 for , separator */ 177 + strlen(map) 178 + sizeof(NISPLUS_ORGDIR); 179 index = xmalloc(l); 180 if (index == NULL) { 181 plog(XLOG_ERROR, 182 "Unable to create index %s: %s", 183 map, 184 strerror(ENOMEM)); 185 return ENOMEM; 186 } 187 xsnprintf(index, l, "[%s%s],%s%s", NISPLUS_KEY, key, map, org); 188 189 data.key = key; 190 data.value = NULL; 191 192 dlog("NISplus search for %s", index); 193 194 result = nis_list(index, 195 EXPAND_NAME | FOLLOW_LINKS | FOLLOW_PATH, 196 (int (*)()) nisplus_search_callback, 197 &data); 198 199 /* free off the NIS index */ 200 XFREE(index); 201 202 if (result == NULL) { 203 plog(XLOG_ERROR, "nisplus_search: %s: %s", map, strerror(ENOMEM)); 204 return ENOMEM; 205 } 206 207 /* 208 * Do something interesting with the return code 209 */ 210 switch (result->status) { 211 case NIS_SUCCESS: 212 case NIS_CBRESULTS: 213 214 if (data.value == NULL) { 215 nis_object *value = result->objects.objects_val; 216 dlog("NISplus search found <nothing>"); 217 dlog("NISplus search for %s: %s(%d)", 218 map, nis_sperrno(result->status), result->status); 219 220 if (value != NULL) 221 data.value = strnsave(ENTRY_VAL(value, 1), ENTRY_LEN(value, 1)); 222 } 223 224 if (m->cfm && (m->cfm->cfm_flags & CFM_SUN_MAP_SYNTAX)) { 225 *val = sun_entry2amd(key, data.value); 226 XFREE(data.value); /* strnsave malloc'ed it above */ 227 } else 228 *val = data.value; 229 230 if (*val) { 231 error = 0; 232 dlog("NISplus search found %s", *val); 233 } else { 234 error = ENOENT; 235 dlog("NISplus search found nothing"); 236 } 237 238 *tp = 0; 239 break; 240 241 case NIS_NOSUCHNAME: 242 dlog("NISplus search returned %d", result->status); 243 error = ENOENT; 244 break; 245 246 default: 247 plog(XLOG_ERROR, "nisplus_search: %s: %s", map, nis_sperrno(result->status)); 248 error = EIO; 249 break; 250 } 251 nis_freeresult(result); 252 253 return error; 254 } 255 256 257 int 258 nisplus_init(mnt_map *m, char *map, time_t *tp) 259 { 260 nis_result *result; 261 char *org; /* if map does not have ".org_dir" then append it */ 262 nis_name map_name; 263 int error = 0; 264 size_t l; 265 266 org = strstr(map, NISPLUS_ORGDIR); 267 if (org == NULL) 268 org = NISPLUS_ORGDIR; 269 else 270 org = ""; 271 272 /* make some room for the NIS map_name */ 273 l = strlen(map) + sizeof(NISPLUS_ORGDIR); 274 map_name = xmalloc(l); 275 if (map_name == NULL) { 276 plog(XLOG_ERROR, 277 "Unable to create map_name %s: %s", 278 map, 279 strerror(ENOMEM)); 280 return ENOMEM; 281 } 282 xsnprintf(map_name, l, "%s%s", map, org); 283 284 result = nis_lookup(map_name, (EXPAND_NAME | FOLLOW_LINKS | FOLLOW_PATH)); 285 286 /* free off the NIS map_name */ 287 XFREE(map_name); 288 289 if (result == NULL) { 290 plog(XLOG_ERROR, "NISplus init <%s>: %s", map, strerror(ENOMEM)); 291 return ENOMEM; 292 } 293 294 if (result->status != NIS_SUCCESS) { 295 dlog("NISplus init <%s>: %s (%d)", 296 map, nis_sperrno(result->status), result->status); 297 298 error = ENOENT; 299 } 300 301 *tp = 0; /* no time */ 302 nis_freeresult(result); 303 return error; 304 } 305 306 307 int 308 nisplus_mtime(mnt_map *m, char *map, time_t *tp) 309 { 310 return nisplus_init(m,map, tp); 311 } 312