source4/lib/ldb/tools/ldbsearch.c

   1 /*
   2    ldb database library
   3
   4    Copyright (C) Andrew Tridgell  2004
   5
   6      ** NOTE! The following LGPL license applies to the ldb
   7      ** library. This does NOT imply that all of Samba is released
   8      ** under the LGPL
   9
  10    This library is free software; you can redistribute it and/or
  11    modify it under the terms of the GNU Lesser General Public
  12    License as published by the Free Software Foundation; either
  13    version 3 of the License, or (at your option) any later version.
  14
  15    This library is distributed in the hope that it will be useful,
  16    but WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18    Lesser General Public License for more details.
  19
  20    You should have received a copy of the GNU Lesser General Public
  21    License along with this library; if not, see <http://www.gnu.org/licenses/>.
  22 */
  23
  24 /*
  25  *  Name: ldb
  26  *
  27  *  Component: ldbsearch
  28  *
  29  *  Description: utility for ldb search - modelled on ldapsearch
  30  *
  31  *  Author: Andrew Tridgell
  32  */
  33
  34 #include "ldb.h"
  35 #include "tools/cmdline.h"
  36
  37 static void usage(void)
  38 {
  39         printf("Usage: ldbsearch <options> <expression> <attrs...>\n");
  40         printf("Options:\n");
  41         printf("  -H ldb_url       choose the database (or $LDB_URL)\n");
  42         printf("  -s base|sub|one  choose search scope\n");
  43         printf("  -b basedn        choose baseDN\n");
  44         printf("  -i               read search expressions from stdin\n");
  45         printf("  -S               sort returned attributes\n");
  46         printf("  -o options       pass options like modules to activate\n");
  47         printf("              e.g: -o modules:timestamps\n");
  48         exit(1);
  49 }
  50
  51 static int do_compare_msg(struct ldb_message **el1,
  52                           struct ldb_message **el2,
  53                           void *opaque)
  54 {
  55         return ldb_dn_compare((*el1)->dn, (*el2)->dn);
  56 }
  57
  58 struct search_context {
  59         struct ldb_context *ldb;
  60         struct ldb_control **req_ctrls;
  61
  62         int sort;
  63         int num_stored;
  64         struct ldb_message **store;
  65         int refs_stored;
  66         char **refs_store;
  67
  68         int entries;
  69         int refs;
  70
  71         int pending;
  72         int status;
  73 };
  74
  75 static int store_message(struct ldb_message *msg, struct search_context *sctx) {
  76
  77         sctx->store = talloc_realloc(sctx, sctx->store, struct ldb_message *, sctx->num_stored + 2);
  78         if (!sctx->store) {
  79                 fprintf(stderr, "talloc_realloc failed while storing messages\n");
  80                 return -1;
  81         }
  82
  83         sctx->store[sctx->num_stored] = talloc_move(sctx->store, &msg);
  84         sctx->num_stored++;
  85         sctx->store[sctx->num_stored] = NULL;
  86
  87         return 0;
  88 }
  89
  90 static int store_referral(char *referral, struct search_context *sctx) {
  91
  92         sctx->refs_store = talloc_realloc(sctx, sctx->refs_store, char *, sctx->refs_stored + 2);
  93         if (!sctx->refs_store) {
  94                 fprintf(stderr, "talloc_realloc failed while storing referrals\n");
  95                 return -1;
  96         }
  97
  98         sctx->refs_store[sctx->refs_stored] = talloc_move(sctx->refs_store, &referral);
  99         sctx->refs_stored++;
 100         sctx->refs_store[sctx->refs_stored] = NULL;
 101
 102         return 0;
 103 }
 104
 105 static int display_message(struct ldb_message *msg, struct search_context *sctx) {
 106         struct ldb_ldif ldif;
 107
 108         sctx->entries++;
 109         printf("# record %d\n", sctx->entries);
 110
 111         ldif.changetype = LDB_CHANGETYPE_NONE;
 112         ldif.msg = msg;
 113
 114         if (sctx->sort) {
 115         /*
 116          * Ensure attributes are always returned in the same
 117          * order.  For testing, this makes comparison of old
 118          * vs. new much easier.
 119          */
 120                 ldb_msg_sort_elements(ldif.msg);
 121         }
 122
 123         ldb_ldif_write_file(sctx->ldb, stdout, &ldif);
 124
 125         return 0;
 126 }
 127
 128 static int display_referral(char *referral, struct search_context *sctx)
 129 {
 130
 131         sctx->refs++;
 132         printf("# Referral\nref: %s\n\n", referral);
 133
 134         return 0;
 135 }
 136
 137 static int search_callback(struct ldb_request *req, struct ldb_reply *ares)
 138 {
 139         struct search_context *sctx;
 140         int ret;
 141
 142         sctx = talloc_get_type(req->context, struct search_context);
 143
 144         if (!ares) {
 145                 return ldb_request_done(req, LDB_ERR_OPERATIONS_ERROR);
 146         }
 147         if (ares->error != LDB_SUCCESS) {
 148                 return ldb_request_done(req, ares->error);
 149         }
 150
 151         switch (ares->type) {
 152         case LDB_REPLY_ENTRY:
 153                 if (sctx->sort) {
 154                         ret = store_message(ares->message, sctx);
 155                 } else {
 156                         ret = display_message(ares->message, sctx);
 157                 }
 158                 break;
 159
 160         case LDB_REPLY_REFERRAL:
 161                 if (sctx->sort) {
 162                         ret = store_referral(ares->referral, sctx);
 163                 } else {
 164                         ret = display_referral(ares->referral, sctx);
 165                 }
 166                 if (ret) {
 167                         return ldb_request_done(req, LDB_ERR_OPERATIONS_ERROR);
 168                 }
 169                 break;
 170
 171         case LDB_REPLY_DONE:
 172                 if (ares->controls) {
 173                         if (handle_controls_reply(ares->controls, sctx->req_ctrls) == 1)
 174                                 sctx->pending = 1;
 175                 }
 176                 talloc_free(ares);
 177                 return ldb_request_done(req, LDB_SUCCESS);
 178         }
 179
 180         talloc_free(ares);
 181         if (ret) {
 182                 return ldb_request_done(req, LDB_ERR_OPERATIONS_ERROR);
 183         }
 184
 185         return LDB_SUCCESS;
 186 }
 187
 188 static int do_search(struct ldb_context *ldb,
 189                      struct ldb_dn *basedn,
 190                      struct ldb_cmdline *options,
 191                      const char *expression,
 192                      const char * const *attrs)
 193 {
 194         struct ldb_request *req;
 195         struct search_context *sctx;
 196         int ret;
 197
 198         req = NULL;
 199
 200         sctx = talloc(ldb, struct search_context);
 201         if (!sctx) return -1;
 202
 203         sctx->ldb = ldb;
 204         sctx->sort = options->sorted;
 205         sctx->num_stored = 0;
 206         sctx->refs_stored = 0;
 207         sctx->store = NULL;
 208         sctx->req_ctrls = ldb_parse_control_strings(ldb, sctx, (const char **)options->controls);
 209         if (options->controls != NULL &&  sctx->req_ctrls== NULL) {
 210                 printf("parsing controls failed: %s\n", ldb_errstring(ldb));
 211                 return -1;
 212         }
 213         sctx->entries = 0;
 214         sctx->refs = 0;
 215
 216         if (basedn == NULL) {
 217                 basedn = ldb_get_default_basedn(ldb);
 218         }
 219
 220 again:
 221         /* free any previous requests */
 222         if (req) talloc_free(req);
 223
 224         ret = ldb_build_search_req(&req, ldb, ldb,
 225                                    basedn, options->scope,
 226                                    expression, attrs,
 227                                    sctx->req_ctrls,
 228                                    sctx, search_callback,
 229                                    NULL);
 230         if (ret != LDB_SUCCESS) {
 231                 talloc_free(sctx);
 232                 printf("allocating request failed: %s\n", ldb_errstring(ldb));
 233                 return -1;
 234         }
 235
 236         sctx->pending = 0;
 237
 238         ret = ldb_request(ldb, req);
 239         if (ret != LDB_SUCCESS) {
 240                 printf("search failed - %s\n", ldb_errstring(ldb));
 241                 return -1;
 242         }
 243
 244         ret = ldb_wait(req->handle, LDB_WAIT_ALL);
 245         if (ret != LDB_SUCCESS) {
 246                 printf("search error - %s\n", ldb_errstring(ldb));
 247                 return -1;
 248         }
 249
 250         if (sctx->pending)
 251                 goto again;
 252
 253         if (sctx->sort && (sctx->num_stored != 0 || sctx->refs != 0)) {
 254                 int i;
 255
 256                 if (sctx->num_stored) {
 257                         ldb_qsort(sctx->store, sctx->num_stored, sizeof(struct ldb_message *),
 258                                   ldb, (ldb_qsort_cmp_fn_t)do_compare_msg);
 259                 }
 260                 for (i = 0; i < sctx->num_stored; i++) {
 261                         display_message(sctx->store[i], sctx);
 262                 }
 263
 264                 for (i = 0; i < sctx->refs_stored; i++) {
 265                         display_referral(sctx->refs_store[i], sctx);
 266                 }
 267         }
 268
 269         printf("# returned %d records\n# %d entries\n# %d referrals\n",
 270                 sctx->entries + sctx->refs, sctx->entries, sctx->refs);
 271
 272         talloc_free(sctx);
 273         talloc_free(req);
 274
 275         return 0;
 276 }
 277
 278 int main(int argc, const char **argv)
 279 {
 280         struct ldb_context *ldb;
 281         struct ldb_dn *basedn = NULL;
 282         const char * const * attrs = NULL;
 283         struct ldb_cmdline *options;
 284         int ret = -1;
 285         const char *expression = "(|(objectClass=*)(distinguishedName=*))";
 286
 287         ldb = ldb_init(NULL, NULL);
 288         if (ldb == NULL) {
 289                 return -1;
 290         }
 291
 292         options = ldb_cmdline_process(ldb, argc, argv, usage);
 293
 294         /* the check for '=' is for compatibility with ldapsearch */
 295         if (!options->interactive &&
 296             options->argc > 0 &&
 297             strchr(options->argv[0], '=')) {
 298                 expression = options->argv[0];
 299                 options->argv++;
 300                 options->argc--;
 301         }
 302
 303         if (options->argc > 0) {
 304                 attrs = (const char * const *)(options->argv);
 305         }
 306
 307         if (options->basedn != NULL) {
 308                 basedn = ldb_dn_new(ldb, ldb, options->basedn);
 309                 if ( ! ldb_dn_validate(basedn)) {
 310                         fprintf(stderr, "Invalid Base DN format\n");
 311                         exit(1);
 312                 }
 313         }
 314
 315         if (options->interactive) {
 316                 char line[1024];
 317                 while (fgets(line, sizeof(line), stdin)) {
 318                         if (do_search(ldb, basedn, options, line, attrs) == -1) {
 319                                 ret = -1;
 320                         }
 321                 }
 322         } else {
 323                 ret = do_search(ldb, basedn, options, expression, attrs);
 324         }
 325
 326         talloc_free(ldb);
 327         return ret;
 328 }