info_nisplus.c revision 174295
1174698Sdas/* 2174698Sdas * Copyright (c) 1997-2006 Erez Zadok 3174698Sdas * Copyright (c) 1989 Jan-Simon Pendry 4174698Sdas * Copyright (c) 1989 Imperial College of Science, Technology & Medicine 5174698Sdas * Copyright (c) 1989 The Regents of the University of California. 6174698Sdas * All rights reserved. 7174698Sdas * 8174698Sdas * This code is derived from software contributed to Berkeley by 9174698Sdas * Jan-Simon Pendry at Imperial College, London. 10174698Sdas * 11174698Sdas * Redistribution and use in source and binary forms, with or without 12174698Sdas * modification, are permitted provided that the following conditions 13174698Sdas * are met: 14174698Sdas * 1. Redistributions of source code must retain the above copyright 15174698Sdas * notice, this list of conditions and the following disclaimer. 16174698Sdas * 2. Redistributions in binary form must reproduce the above copyright 17174698Sdas * notice, this list of conditions and the following disclaimer in the 18174698Sdas * documentation and/or other materials provided with the distribution. 19174698Sdas * 3. All advertising materials mentioning features or use of this software 20174698Sdas * must display the following acknowledgment: 21174698Sdas * This product includes software developed by the University of 22174698Sdas * California, Berkeley and its contributors. 23174698Sdas * 4. Neither the name of the University nor the names of its contributors 24174698Sdas * may be used to endorse or promote products derived from this software 25174698Sdas * without specific prior written permission. 26174698Sdas * 27174698Sdas * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 28174698Sdas * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 29174698Sdas * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 30174698Sdas * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 31174698Sdas * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 32174698Sdas * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 33174698Sdas * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 34174698Sdas * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 35174698Sdas * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 36174698Sdas * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 37213337Sdim * SUCH DAMAGE. 38174698Sdas * 39174698Sdas * 40174719Sbde * File: am-utils/amd/info_nisplus.c 41174698Sdas * 42174698Sdas */ 43174698Sdas 44217108Skib/* 45217108Skib * Get info from NIS+ (version 3) map 46 */ 47 48#ifdef HAVE_CONFIG_H 49# include <config.h> 50#endif /* HAVE_CONFIG_H */ 51#include <am_defs.h> 52#include <amd.h> 53 54#define NISPLUS_KEY "key=" 55#define NISPLUS_ORGDIR ".org_dir" 56 57struct nis_callback_data { 58 mnt_map *ncd_m; 59 char *ncd_map; 60 void (*ncd_fn)(); 61}; 62 63struct nisplus_search_callback_data { 64 nis_name key; 65 char *value; 66}; 67 68 69static int 70nisplus_callback(const nis_name key, const nis_object *value, voidp opaquedata) 71{ 72 char *kp = strnsave(ENTRY_VAL(value, 0), ENTRY_LEN(value, 0)); 73 char *vp = strnsave(ENTRY_VAL(value, 1), ENTRY_LEN(value, 1)); 74 struct nis_callback_data *data = (struct nis_callback_data *) opaquedata; 75 76 dlog("NISplus callback for <%s,%s>", kp, vp); 77 78 (*data->ncd_fn) (data->ncd_m, kp, vp); 79 80 /* 81 * We want more ... 82 */ 83 return FALSE; 84} 85 86 87int 88nisplus_reload(mnt_map *m, char *map, void (*fn) ()) 89{ 90 int error = 0; 91 struct nis_callback_data data; 92 nis_result *result; 93 char *org; /* if map does not have ".org_dir" then append it */ 94 nis_name map_name; 95 size_t l; 96 97 org = strstr(map, NISPLUS_ORGDIR); 98 if (org == NULL) 99 org = NISPLUS_ORGDIR; 100 else 101 org = ""; 102 103 /* make some room for the NIS map_name */ 104 l = strlen(map) + sizeof(NISPLUS_ORGDIR); 105 map_name = xmalloc(l); 106 if (map_name == NULL) { 107 plog(XLOG_ERROR, "Unable to create map_name %s: %s", 108 map, strerror(ENOMEM)); 109 return ENOMEM; 110 } 111 xsnprintf(map_name, l, "%s%s", map, org); 112 113 data.ncd_m = m; 114 data.ncd_map = map_name; 115 data.ncd_fn = fn; 116 117 dlog("NISplus reload for %s", map); 118 119 result = nis_list(map_name, 120 EXPAND_NAME | FOLLOW_LINKS | FOLLOW_PATH, 121 (int (*)()) nisplus_callback, 122 &data); 123 124 /* free off the NIS map_name */ 125 XFREE(map_name); 126 127 if (result->status != NIS_SUCCESS && result->status != NIS_CBRESULTS) 128 error = 1; 129 130 if (error) 131 plog(XLOG_ERROR, "error grabbing nisplus map of %s: %s", 132 map, 133 nis_sperrno(result->status)); 134 135 nis_freeresult(result); 136 return error; 137} 138 139 140static int 141nisplus_search_callback(const nis_name key, const nis_object *value, voidp opaquedata) 142{ 143 struct nisplus_search_callback_data *data = (struct nisplus_search_callback_data *) opaquedata; 144 145 dlog("NISplus search callback for <%s>", ENTRY_VAL(value, 0)); 146 dlog("NISplus search callback value <%s>", ENTRY_VAL(value, 1)); 147 148 data->value = strnsave(ENTRY_VAL(value, 1), ENTRY_LEN(value, 1)); 149 return TRUE; 150} 151 152 153/* 154 * Try to locate a key using NIS+. 155 */ 156int 157nisplus_search(mnt_map *m, char *map, char *key, char **val, time_t *tp) 158{ 159 nis_result *result; 160 int error = 0; 161 struct nisplus_search_callback_data data; 162 nis_name index; 163 char *org; /* if map does not have ".org_dir" then append it */ 164 size_t l; 165 166 org = strstr(map, NISPLUS_ORGDIR); 167 if (org == NULL) 168 org = NISPLUS_ORGDIR; 169 else 170 org = ""; 171 172 /* make some room for the NIS index */ 173 l = sizeof('[') /* for opening selection criteria */ 174 + sizeof(NISPLUS_KEY) 175 + strlen(key) 176 + sizeof(']') /* for closing selection criteria */ 177 + sizeof(',') /* + 1 for , separator */ 178 + strlen(map) 179 + sizeof(NISPLUS_ORGDIR); 180 index = xmalloc(l); 181 if (index == NULL) { 182 plog(XLOG_ERROR, 183 "Unable to create index %s: %s", 184 map, 185 strerror(ENOMEM)); 186 return ENOMEM; 187 } 188 xsnprintf(index, l, "[%s%s],%s%s", NISPLUS_KEY, key, map, org); 189 190 data.key = key; 191 data.value = NULL; 192 193 dlog("NISplus search for %s", index); 194 195 result = nis_list(index, 196 EXPAND_NAME | FOLLOW_LINKS | FOLLOW_PATH, 197 (int (*)()) nisplus_search_callback, 198 &data); 199 200 /* free off the NIS index */ 201 XFREE(index); 202 203 if (result == NULL) { 204 plog(XLOG_ERROR, "nisplus_search: %s: %s", map, strerror(ENOMEM)); 205 return ENOMEM; 206 } 207 208 /* 209 * Do something interesting with the return code 210 */ 211 switch (result->status) { 212 case NIS_SUCCESS: 213 case NIS_CBRESULTS: 214 215 if (data.value == NULL) { 216 nis_object *value = result->objects.objects_val; 217 dlog("NISplus search found <nothing>"); 218 dlog("NISplus search for %s: %s(%d)", 219 map, nis_sperrno(result->status), result->status); 220 221 if (value != NULL) 222 data.value = strnsave(ENTRY_VAL(value, 1), ENTRY_LEN(value, 1)); 223 } 224 *val = data.value; 225 226 if (*val) { 227 error = 0; 228 dlog("NISplus search found %s", *val); 229 } else { 230 error = ENOENT; 231 dlog("NISplus search found nothing"); 232 } 233 234 *tp = 0; 235 break; 236 237 case NIS_NOSUCHNAME: 238 dlog("NISplus search returned %d", result->status); 239 error = ENOENT; 240 break; 241 242 default: 243 plog(XLOG_ERROR, "nisplus_search: %s: %s", map, nis_sperrno(result->status)); 244 error = EIO; 245 break; 246 } 247 nis_freeresult(result); 248 249 return error; 250} 251 252 253int 254nisplus_init(mnt_map *m, char *map, time_t *tp) 255{ 256 nis_result *result; 257 char *org; /* if map does not have ".org_dir" then append it */ 258 nis_name map_name; 259 int error = 0; 260 size_t l; 261 262 org = strstr(map, NISPLUS_ORGDIR); 263 if (org == NULL) 264 org = NISPLUS_ORGDIR; 265 else 266 org = ""; 267 268 /* make some room for the NIS map_name */ 269 l = strlen(map) + sizeof(NISPLUS_ORGDIR); 270 map_name = xmalloc(l); 271 if (map_name == NULL) { 272 plog(XLOG_ERROR, 273 "Unable to create map_name %s: %s", 274 map, 275 strerror(ENOMEM)); 276 return ENOMEM; 277 } 278 xsnprintf(map_name, l, "%s%s", map, org); 279 280 result = nis_lookup(map_name, (EXPAND_NAME | FOLLOW_LINKS | FOLLOW_PATH)); 281 282 /* free off the NIS map_name */ 283 XFREE(map_name); 284 285 if (result == NULL) { 286 plog(XLOG_ERROR, "NISplus init <%s>: %s", map, strerror(ENOMEM)); 287 return ENOMEM; 288 } 289 290 if (result->status != NIS_SUCCESS) { 291 dlog("NISplus init <%s>: %s (%d)", 292 map, nis_sperrno(result->status), result->status); 293 294 error = ENOENT; 295 } 296 297 *tp = 0; /* no time */ 298 nis_freeresult(result); 299 return error; 300} 301 302 303int 304nisplus_mtime(mnt_map *m, char *map, time_t *tp) 305{ 306 return nisplus_init(m,map, tp); 307} 308