source/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 2 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, write to the Free Software
  22    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  23 */
  24
  25 /*
  26  *  Name: ldb
  27  *
  28  *  Component: ldbsearch
  29  *
  30  *  Description: utility for ldb search - modelled on ldapsearch
  31  *
  32  *  Author: Andrew Tridgell
  33  */
  34
  35 #include "includes.h"
  36 #include "ldb/include/includes.h"
  37 #include "ldb/tools/cmdline.h"
  38
  39 static void usage(void)
  40 {
  41         printf("Usage: ldbsearch <options> <expression> <attrs...>\n");
  42         printf("Options:\n");
  43         printf("  -H ldb_url       choose the database (or $LDB_URL)\n");
  44         printf("  -s base|sub|one  choose search scope\n");
  45         printf("  -b basedn        choose baseDN\n");
  46         printf("  -i               read search expressions from stdin\n");
  47         printf("  -S               sort returned attributes\n");
  48         printf("  -o options       pass options like modules to activate\n");
  49         printf("              e.g: -o modules:timestamps\n");
  50         exit(1);
  51 }
  52
  53 static int do_compare_msg(struct ldb_message **el1,
  54                           struct ldb_message **el2,
  55                           void *opaque)
  56 {
  57         struct ldb_context *ldb = talloc_get_type(opaque, struct ldb_context);
  58         return ldb_dn_compare(ldb, (*el1)->dn, (*el2)->dn);
  59 }
  60
  61 struct search_context {
  62         struct ldb_control **req_ctrls;
  63
  64         int sort;
  65         int num_stored;
  66         struct ldb_message **store;
  67         char **refs_store;
  68
  69         int entries;
  70         int refs;
  71
  72         int pending;
  73         int status;
  74 };
  75
  76 static int store_message(struct ldb_message *msg, struct search_context *sctx) {
  77
  78         sctx->store = talloc_realloc(sctx, sctx->store, struct ldb_message *, sctx->num_stored + 2);
  79         if (!sctx->store) {
  80                 fprintf(stderr, "talloc_realloc failed while storing messages\n");
  81                 return -1;
  82         }
  83
  84         sctx->store[sctx->num_stored] = talloc_move(sctx->store, &msg);
  85         sctx->num_stored++;
  86         sctx->store[sctx->num_stored] = NULL;
  87
  88         return 0;
  89 }
  90
  91 static int store_referral(char *referral, struct search_context *sctx) {
  92
  93         sctx->refs_store = talloc_realloc(sctx, sctx->refs_store, char *, sctx->refs + 2);
  94         if (!sctx->refs_store) {
  95                 fprintf(stderr, "talloc_realloc failed while storing referrals\n");
  96                 return -1;
  97         }
  98
  99         sctx->refs_store[sctx->refs] = talloc_move(sctx->refs_store, &referral);
 100         sctx->refs++;
 101         sctx->refs_store[sctx->refs] = NULL;
 102
 103         return 0;
 104 }
 105
 106 static int display_message(struct ldb_context *ldb, struct ldb_message *msg, struct search_context *sctx) {
 107         struct ldb_ldif ldif;
 108
 109         sctx->entries++;
 110         printf("# record %d\n", sctx->entries);
 111
 112         ldif.changetype = LDB_CHANGETYPE_NONE;
 113         ldif.msg = msg;
 114
 115         if (sctx->sort) {
 116         /*
 117          * Ensure attributes are always returned in the same
 118          * order.  For testing, this makes comparison of old
 119          * vs. new much easier.
 120          */
 121                 ldb_msg_sort_elements(ldif.msg);
 122         }
 123
 124         ldb_ldif_write_file(ldb, stdout, &ldif);
 125
 126         return 0;
 127 }
 128
 129 static int display_referral(char *referral, struct search_context *sctx)
 130 {
 131
 132         sctx->refs++;
 133         printf("# Referral\nref: %s\n\n", referral);
 134
 135         return 0;
 136 }
 137
 138 static int search_callback(struct ldb_context *ldb, void *context, struct ldb_reply *ares)
 139 {
 140         struct search_context *sctx = talloc_get_type(context, struct search_context);
 141         int ret;
 142
 143         switch (ares->type) {
 144
 145         case LDB_REPLY_ENTRY:
 146                 if (sctx->sort) {
 147                         ret = store_message(ares->message, sctx);
 148                 } else {
 149                         ret = display_message(ldb, ares->message, sctx);
 150                 }
 151                 break;
 152
 153         case LDB_REPLY_REFERRAL:
 154                 if (sctx->sort) {
 155                         ret = store_referral(ares->referral, sctx);
 156                 } else {
 157                         ret = display_referral(ares->referral, sctx);
 158                 }
 159                 break;
 160
 161         case LDB_REPLY_DONE:
 162                 if (ares->controls) {
 163                         if (handle_controls_reply(ares->controls, sctx->req_ctrls) == 1)
 164                                 sctx->pending = 1;
 165                 }
 166                 ret = 0;
 167                 break;
 168
 169         default:
 170                 fprintf(stderr, "unknown Reply Type\n");
 171                 return LDB_ERR_OTHER;
 172         }
 173
 174         if (talloc_free(ares) == -1) {
 175                 fprintf(stderr, "talloc_free failed\n");
 176                 sctx->pending = 0;
 177                 return LDB_ERR_OPERATIONS_ERROR;
 178         }
 179
 180         if (ret) {
 181                 return LDB_ERR_OPERATIONS_ERROR;
 182         }
 183
 184         return LDB_SUCCESS;
 185 }
 186
 187 static int do_search(struct ldb_context *ldb,
 188                      const struct ldb_dn *basedn,
 189                      struct ldb_cmdline *options,
 190                      const char *expression,
 191                      const char * const *attrs)
 192 {
 193         struct ldb_request *req;
 194         struct search_context *sctx;
 195         int ret;
 196
 197         req = talloc(ldb, struct ldb_request);
 198         if (!req) return -1;
 199
 200         sctx = talloc(req, struct search_context);
 201         if (!sctx) return -1;
 202
 203         sctx->sort = options->sorted;
 204         sctx->num_stored = 0;
 205         sctx->store = NULL;
 206         sctx->req_ctrls = parse_controls(ldb, options->controls);
 207         if (options->controls != NULL &&  sctx->req_ctrls== NULL) return -1;
 208         sctx->entries = 0;
 209         sctx->refs = 0;
 210
 211         if (basedn == NULL) {
 212                 basedn = ldb_get_default_basedn(ldb);
 213         }
 214
 215         req->operation = LDB_SEARCH;
 216         req->op.search.base = basedn;
 217         req->op.search.scope = options->scope;
 218         req->op.search.tree = ldb_parse_tree(req, expression);
 219         if (req->op.search.tree == NULL) return -1;
 220         req->op.search.attrs = attrs;
 221         req->controls = sctx->req_ctrls;
 222         req->context = sctx;
 223         req->callback = &search_callback;
 224         ldb_set_timeout(ldb, req, 0); /* TODO: make this settable by command line */
 225
 226 again:
 227         sctx->pending = 0;
 228
 229         ret = ldb_request(ldb, req);
 230         if (ret != LDB_SUCCESS) {
 231                 printf("search failed - %s\n", ldb_errstring(ldb));
 232                 return -1;
 233         }
 234
 235         ret = ldb_wait(req->handle, LDB_WAIT_ALL);
 236         if (ret != LDB_SUCCESS) {
 237                 printf("search error - %s\n", ldb_errstring(ldb));
 238                 return -1;
 239         }
 240
 241         if (sctx->pending)
 242                 goto again;
 243
 244         if (sctx->sort && sctx->num_stored != 0) {
 245                 int i;
 246
 247                 ldb_qsort(sctx->store, ret, sizeof(struct ldb_message *),
 248                           ldb, (ldb_qsort_cmp_fn_t)do_compare_msg);
 249
 250                 if (ret != 0) {
 251                         fprintf(stderr, "An error occurred while sorting messages\n");
 252                         exit(1);
 253                 }
 254
 255                 for (i = 0; i < sctx->num_stored; i++) {
 256                         display_message(ldb, sctx->store[i], sctx);
 257                 }
 258
 259                 for (i = 0; i < sctx->refs; i++) {
 260                         display_referral(sctx->refs_store[i], sctx);
 261                 }
 262         }
 263
 264         printf("# returned %d records\n# %d entries\n# %d referrals\n",
 265                 sctx->entries + sctx->refs, sctx->entries, sctx->refs);
 266
 267         talloc_free(req);
 268
 269         return 0;
 270 }
 271
 272 int main(int argc, const char **argv)
 273 {
 274         struct ldb_context *ldb;
 275         struct ldb_dn *basedn = NULL;
 276         const char * const * attrs = NULL;
 277         struct ldb_cmdline *options;
 278         int ret = -1;
 279         const char *expression = "(|(objectClass=*)(distinguishedName=*))";
 280
 281         ldb_global_init();
 282
 283         ldb = ldb_init(NULL);
 284
 285         options = ldb_cmdline_process(ldb, argc, argv, usage);
 286
 287         /* the check for '=' is for compatibility with ldapsearch */
 288         if (!options->interactive &&
 289             options->argc > 0 &&
 290             strchr(options->argv[0], '=')) {
 291                 expression = options->argv[0];
 292                 options->argv++;
 293                 options->argc--;
 294         }
 295
 296         if (options->argc > 0) {
 297                 attrs = (const char * const *)(options->argv);
 298         }
 299
 300         if (options->basedn != NULL) {
 301                 basedn = ldb_dn_explode(ldb, options->basedn);
 302                 if (basedn == NULL) {
 303                         fprintf(stderr, "Invalid Base DN format\n");
 304                         exit(1);
 305                 }
 306         }
 307
 308         if (options->interactive) {
 309                 char line[1024];
 310                 while (fgets(line, sizeof(line), stdin)) {
 311                         if (do_search(ldb, basedn, options, line, attrs) == -1) {
 312                                 ret = -1;
 313                         }
 314                 }
 315         } else {
 316                 ret = do_search(ldb, basedn, options, expression, attrs);
 317         }
 318
 319         talloc_free(ldb);
 320         return ret;
 321 }