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