1/* 2 * Copyright (c) 1997-2014 Erez Zadok 3 * Copyright (c) 1989 Jan-Simon Pendry 4 * Copyright (c) 1989 Imperial College of Science, Technology & Medicine 5 * Copyright (c) 1989 The Regents of the University of California. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to Berkeley by 9 * Jan-Simon Pendry at Imperial College, London. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * 36 * File: am-utils/amd/info_nisplus.c 37 * 38 */ 39 40/* 41 * Get info from NIS+ (version 3) map 42 */ 43 44#ifdef HAVE_CONFIG_H 45# include <config.h> 46#endif /* HAVE_CONFIG_H */ 47#include <am_defs.h> 48#include <amd.h> 49#include <sun_map.h> 50 51#define NISPLUS_KEY "key=" 52#define NISPLUS_ORGDIR ".org_dir" 53 54struct nis_callback_data { 55 mnt_map *ncd_m; 56 char *ncd_map; 57 void (*ncd_fn)(); 58}; 59 60struct nisplus_search_callback_data { 61 nis_name key; 62 char *value; 63}; 64 65 66static int 67nisplus_callback(const nis_name key, const nis_object *value, voidp opaquedata) 68{ 69 char *kp = strnsave(ENTRY_VAL(value, 0), ENTRY_LEN(value, 0)); 70 char *vp = strnsave(ENTRY_VAL(value, 1), ENTRY_LEN(value, 1)); 71 struct nis_callback_data *data = (struct nis_callback_data *) opaquedata; 72 73 dlog("NISplus callback for <%s,%s>", kp, vp); 74 75 (*data->ncd_fn) (data->ncd_m, kp, vp); 76 77 /* 78 * We want more ... 79 */ 80 return FALSE; 81} 82 83 84int 85nisplus_reload(mnt_map *m, char *map, void (*fn) ()) 86{ 87 int error = 0; 88 struct nis_callback_data data; 89 nis_result *result; 90 char *org; /* if map does not have ".org_dir" then append it */ 91 nis_name map_name; 92 size_t l; 93 94 org = strstr(map, NISPLUS_ORGDIR); 95 if (org == NULL) 96 org = NISPLUS_ORGDIR; 97 else 98 org = ""; 99 100 /* make some room for the NIS map_name */ 101 l = strlen(map) + sizeof(NISPLUS_ORGDIR); 102 map_name = xmalloc(l); 103 if (map_name == NULL) { 104 plog(XLOG_ERROR, "Unable to create map_name %s: %s", 105 map, strerror(ENOMEM)); 106 return ENOMEM; 107 } 108 xsnprintf(map_name, l, "%s%s", map, org); 109 110 data.ncd_m = m; 111 data.ncd_map = map_name; 112 data.ncd_fn = fn; 113 114 dlog("NISplus reload for %s", map); 115 116 result = nis_list(map_name, 117 EXPAND_NAME | FOLLOW_LINKS | FOLLOW_PATH, 118 (int (*)()) nisplus_callback, 119 &data); 120 121 /* free off the NIS map_name */ 122 XFREE(map_name); 123 124 if (result->status != NIS_SUCCESS && result->status != NIS_CBRESULTS) 125 error = 1; 126 127 if (error) 128 plog(XLOG_ERROR, "error grabbing nisplus map of %s: %s", 129 map, 130 nis_sperrno(result->status)); 131 132 nis_freeresult(result); 133 return error; 134} 135 136 137static int 138nisplus_search_callback(const nis_name key, const nis_object *value, voidp opaquedata) 139{ 140 struct nisplus_search_callback_data *data = (struct nisplus_search_callback_data *) opaquedata; 141 142 dlog("NISplus search callback for <%s>", ENTRY_VAL(value, 0)); 143 dlog("NISplus search callback value <%s>", ENTRY_VAL(value, 1)); 144 145 data->value = strnsave(ENTRY_VAL(value, 1), ENTRY_LEN(value, 1)); 146 return TRUE; 147} 148 149 150/* 151 * Try to locate a key using NIS+. 152 */ 153int 154nisplus_search(mnt_map *m, char *map, char *key, char **val, time_t *tp) 155{ 156 nis_result *result; 157 int error = 0; 158 struct nisplus_search_callback_data data; 159 nis_name index; 160 char *org; /* if map does not have ".org_dir" then append it */ 161 size_t l; 162 163 org = strstr(map, NISPLUS_ORGDIR); 164 if (org == NULL) 165 org = NISPLUS_ORGDIR; 166 else 167 org = ""; 168 169 /* make some room for the NIS index */ 170 l = sizeof('[') /* for opening selection criteria */ 171 + sizeof(NISPLUS_KEY) 172 + strlen(key) 173 + sizeof(']') /* for closing selection criteria */ 174 + sizeof(',') /* + 1 for , separator */ 175 + strlen(map) 176 + sizeof(NISPLUS_ORGDIR); 177 index = xmalloc(l); 178 if (index == NULL) { 179 plog(XLOG_ERROR, 180 "Unable to create index %s: %s", 181 map, 182 strerror(ENOMEM)); 183 return ENOMEM; 184 } 185 xsnprintf(index, l, "[%s%s],%s%s", NISPLUS_KEY, key, map, org); 186 187 data.key = key; 188 data.value = NULL; 189 190 dlog("NISplus search for %s", index); 191 192 result = nis_list(index, 193 EXPAND_NAME | FOLLOW_LINKS | FOLLOW_PATH, 194 (int (*)()) nisplus_search_callback, 195 &data); 196 197 /* free off the NIS index */ 198 XFREE(index); 199 200 if (result == NULL) { 201 plog(XLOG_ERROR, "nisplus_search: %s: %s", map, strerror(ENOMEM)); 202 return ENOMEM; 203 } 204 205 /* 206 * Do something interesting with the return code 207 */ 208 switch (result->status) { 209 case NIS_SUCCESS: 210 case NIS_CBRESULTS: 211 212 if (data.value == NULL) { 213 nis_object *value = result->objects.objects_val; 214 dlog("NISplus search found <nothing>"); 215 dlog("NISplus search for %s: %s(%d)", 216 map, nis_sperrno(result->status), result->status); 217 218 if (value != NULL) 219 data.value = strnsave(ENTRY_VAL(value, 1), ENTRY_LEN(value, 1)); 220 } 221 222 if (m->cfm && (m->cfm->cfm_flags & CFM_SUN_MAP_SYNTAX)) { 223 *val = sun_entry2amd(key, data.value); 224 XFREE(data.value); /* strnsave malloc'ed it above */ 225 } else 226 *val = data.value; 227 228 if (*val) { 229 error = 0; 230 dlog("NISplus search found %s", *val); 231 } else { 232 error = ENOENT; 233 dlog("NISplus search found nothing"); 234 } 235 236 *tp = 0; 237 break; 238 239 case NIS_NOSUCHNAME: 240 dlog("NISplus search returned %d", result->status); 241 error = ENOENT; 242 break; 243 244 default: 245 plog(XLOG_ERROR, "nisplus_search: %s: %s", map, nis_sperrno(result->status)); 246 error = EIO; 247 break; 248 } 249 nis_freeresult(result); 250 251 return error; 252} 253 254 255int 256nisplus_init(mnt_map *m, char *map, time_t *tp) 257{ 258 nis_result *result; 259 char *org; /* if map does not have ".org_dir" then append it */ 260 nis_name map_name; 261 int error = 0; 262 size_t l; 263 264 org = strstr(map, NISPLUS_ORGDIR); 265 if (org == NULL) 266 org = NISPLUS_ORGDIR; 267 else 268 org = ""; 269 270 /* make some room for the NIS map_name */ 271 l = strlen(map) + sizeof(NISPLUS_ORGDIR); 272 map_name = xmalloc(l); 273 if (map_name == NULL) { 274 plog(XLOG_ERROR, 275 "Unable to create map_name %s: %s", 276 map, 277 strerror(ENOMEM)); 278 return ENOMEM; 279 } 280 xsnprintf(map_name, l, "%s%s", map, org); 281 282 result = nis_lookup(map_name, (EXPAND_NAME | FOLLOW_LINKS | FOLLOW_PATH)); 283 284 /* free off the NIS map_name */ 285 XFREE(map_name); 286 287 if (result == NULL) { 288 plog(XLOG_ERROR, "NISplus init <%s>: %s", map, strerror(ENOMEM)); 289 return ENOMEM; 290 } 291 292 if (result->status != NIS_SUCCESS) { 293 dlog("NISplus init <%s>: %s (%d)", 294 map, nis_sperrno(result->status), result->status); 295 296 error = ENOENT; 297 } 298 299 *tp = 0; /* no time */ 300 nis_freeresult(result); 301 return error; 302} 303 304 305int 306nisplus_mtime(mnt_map *m, char *map, time_t *tp) 307{ 308 return nisplus_init(m,map, tp); 309} 310