root/source3/lib/ldb/include/ldb.h

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   1 /* 
   2    ldb database library
   3 
   4    Copyright (C) Andrew Tridgell  2004
   5    Copyright (C) Stefan Metzmacher  2004
   6    Copyright (C) Simo Sorce  2005-2006
   7 
   8      ** NOTE! The following LGPL license applies to the ldb
   9      ** library. This does NOT imply that all of Samba is released
  10      ** under the LGPL
  11    
  12    This library is free software; you can redistribute it and/or
  13    modify it under the terms of the GNU Lesser General Public
  14    License as published by the Free Software Foundation; either
  15    version 3 of the License, or (at your option) any later version.
  16 
  17    This library is distributed in the hope that it will be useful,
  18    but WITHOUT ANY WARRANTY; without even the implied warranty of
  19    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  20    Lesser General Public License for more details.
  21 
  22    You should have received a copy of the GNU Lesser General Public
  23    License along with this library; if not, see <http://www.gnu.org/licenses/>.
  24 */
  25 
  26 /*
  27  *  Name: ldb
  28  *
  29  *  Component: ldb header
  30  *
  31  *  Description: defines for base ldb API
  32  *
  33  *  Author: Andrew Tridgell
  34  *  Author: Stefan Metzmacher
  35  */
  36 
  37 /**
  38    \file ldb.h Samba's ldb database
  39 
  40    This header file provides the main API for ldb.
  41 */
  42 
  43 #ifndef _LDB_H_
  44 
  45 /*! \cond DOXYGEN_IGNORE */
  46 #define _LDB_H_ 1
  47 /*! \endcond */
  48 
  49 /*
  50   major restrictions as compared to normal LDAP:
  51 
  52      - no async calls.
  53      - each record must have a unique key field
  54      - the key must be representable as a NULL terminated C string and may not 
  55        contain a comma or braces
  56 
  57   major restrictions as compared to tdb:
  58 
  59      - no explicit locking calls
  60      UPDATE: we have transactions now, better than locking --SSS.
  61 
  62 */
  63 
  64 #ifndef ldb_val
  65 /**
  66    Result value
  67 
  68    An individual lump of data in a result comes in this format. The
  69    pointer will usually be to a UTF-8 string if the application is
  70    sensible, but it can be to anything you like, including binary data
  71    blobs of arbitrary size.
  72 
  73    \note the data is null (0x00) terminated, but the length does not
  74    include the terminator. 
  75 */
  76 struct ldb_val {
  77         uint8_t *data; /*!< result data */
  78         size_t length; /*!< length of data */
  79 };
  80 #endif
  81 
  82 /*! \cond DOXYGEN_IGNORE */
  83 #ifndef PRINTF_ATTRIBUTE
  84 #define PRINTF_ATTRIBUTE(a,b)
  85 #endif
  86 /*! \endcond */
  87 
  88 /* opaque ldb_dn structures, see ldb_dn.c for internals */
  89 struct ldb_dn_component;
  90 struct ldb_dn;
  91 
  92 /**
  93  There are a number of flags that are used with ldap_modify() in
  94  ldb_message_element.flags fields. The LDA_FLAGS_MOD_ADD,
  95  LDA_FLAGS_MOD_DELETE and LDA_FLAGS_MOD_REPLACE flags are used in
  96  ldap_modify() calls to specify whether attributes are being added,
  97  deleted or modified respectively.
  98 */
  99 #define LDB_FLAG_MOD_MASK  0x3
 100 
 101 /**
 102    Flag value used in ldap_modify() to indicate that attributes are
 103    being added.
 104 
 105    \sa LDB_FLAG_MOD_MASK
 106 */
 107 #define LDB_FLAG_MOD_ADD     1
 108 
 109 /**
 110    Flag value used in ldap_modify() to indicate that attributes are
 111    being replaced.
 112 
 113    \sa LDB_FLAG_MOD_MASK
 114 */
 115 #define LDB_FLAG_MOD_REPLACE 2
 116 
 117 /**
 118    Flag value used in ldap_modify() to indicate that attributes are
 119    being deleted.
 120 
 121    \sa LDB_FLAG_MOD_MASK
 122 */
 123 #define LDB_FLAG_MOD_DELETE  3
 124 
 125 /**
 126   OID for logic AND comaprison.
 127 
 128   This is the well known object ID for a logical AND comparitor.
 129 */
 130 #define LDB_OID_COMPARATOR_AND  "1.2.840.113556.1.4.803"
 131 
 132 /**
 133   OID for logic OR comparison.
 134 
 135   This is the well known object ID for a logical OR comparitor.
 136 */
 137 #define LDB_OID_COMPARATOR_OR   "1.2.840.113556.1.4.804"
 138 
 139 /**
 140   results are given back as arrays of ldb_message_element
 141 */
 142 struct ldb_message_element {
 143         unsigned int flags;
 144         const char *name;
 145         unsigned int num_values;
 146         struct ldb_val *values;
 147 };
 148 
 149 
 150 /**
 151   a ldb_message represents all or part of a record. It can contain an arbitrary
 152   number of elements. 
 153 */
 154 struct ldb_message {
 155         struct ldb_dn *dn;
 156         unsigned int num_elements;
 157         struct ldb_message_element *elements;
 158         void *private_data; /* private to the backend */
 159 };
 160 
 161 enum ldb_changetype {
 162         LDB_CHANGETYPE_NONE=0,
 163         LDB_CHANGETYPE_ADD,
 164         LDB_CHANGETYPE_DELETE,
 165         LDB_CHANGETYPE_MODIFY
 166 };
 167 
 168 /**
 169   LDIF record
 170 
 171   This structure contains a LDIF record, as returned from ldif_read()
 172   and equivalent functions.
 173 */
 174 struct ldb_ldif {
 175         enum ldb_changetype changetype; /*!< The type of change */
 176         struct ldb_message *msg;  /*!< The changes */
 177 };
 178 
 179 enum ldb_scope {LDB_SCOPE_DEFAULT=-1, 
 180                 LDB_SCOPE_BASE=0, 
 181                 LDB_SCOPE_ONELEVEL=1,
 182                 LDB_SCOPE_SUBTREE=2};
 183 
 184 struct ldb_context;
 185 
 186 /* debugging uses one of the following levels */
 187 enum ldb_debug_level {LDB_DEBUG_FATAL, LDB_DEBUG_ERROR, 
 188                       LDB_DEBUG_WARNING, LDB_DEBUG_TRACE};
 189 
 190 /**
 191   the user can optionally supply a debug function. The function
 192   is based on the vfprintf() style of interface, but with the addition
 193   of a severity level
 194 */
 195 struct ldb_debug_ops {
 196         void (*debug)(void *context, enum ldb_debug_level level, 
 197                       const char *fmt, va_list ap) PRINTF_ATTRIBUTE(3,0);
 198         void *context;
 199 };
 200 
 201 /**
 202   The user can optionally supply a custom utf8 functions,
 203   to handle comparisons and casefolding.
 204 */
 205 struct ldb_utf8_fns {
 206         void *context;
 207         char *(*casefold)(void *context, void *mem_ctx, const char *s);
 208 };
 209 
 210 /**
 211    Flag value for database connection mode.
 212 
 213    If LDB_FLG_RDONLY is used in ldb_connect, then the database will be
 214    opened read-only, if possible.
 215 */
 216 #define LDB_FLG_RDONLY 1
 217 
 218 /**
 219    Flag value for database connection mode.
 220 
 221    If LDB_FLG_NOSYNC is used in ldb_connect, then the database will be
 222    opened without synchronous operations, if possible.
 223 */
 224 #define LDB_FLG_NOSYNC 2
 225 
 226 /**
 227    Flag value to specify autoreconnect mode.
 228 
 229    If LDB_FLG_RECONNECT is used in ldb_connect, then the backend will
 230    be opened in a way that makes it try to auto reconnect if the
 231    connection is dropped (actually make sense only with ldap).
 232 */
 233 #define LDB_FLG_RECONNECT 4
 234 
 235 /**
 236    Flag to tell backends not to use mmap
 237 */
 238 #define LDB_FLG_NOMMAP 8
 239 
 240 /*
 241    structures for ldb_parse_tree handling code
 242 */
 243 enum ldb_parse_op { LDB_OP_AND=1, LDB_OP_OR=2, LDB_OP_NOT=3,
 244                     LDB_OP_EQUALITY=4, LDB_OP_SUBSTRING=5,
 245                     LDB_OP_GREATER=6, LDB_OP_LESS=7, LDB_OP_PRESENT=8,
 246                     LDB_OP_APPROX=9, LDB_OP_EXTENDED=10 };
 247 
 248 struct ldb_parse_tree {
 249         enum ldb_parse_op operation;
 250         union {
 251                 struct {
 252                         struct ldb_parse_tree *child;
 253                 } isnot;
 254                 struct {
 255                         const char *attr;
 256                         struct ldb_val value;
 257                 } equality;
 258                 struct {
 259                         const char *attr;
 260                         int start_with_wildcard;
 261                         int end_with_wildcard;
 262                         struct ldb_val **chunks;
 263                 } substring;
 264                 struct {
 265                         const char *attr;
 266                 } present;
 267                 struct {
 268                         const char *attr;
 269                         struct ldb_val value;
 270                 } comparison;
 271                 struct {
 272                         const char *attr;
 273                         int dnAttributes;
 274                         char *rule_id;
 275                         struct ldb_val value;
 276                 } extended;
 277                 struct {
 278                         unsigned int num_elements;
 279                         struct ldb_parse_tree **elements;
 280                 } list;
 281         } u;
 282 };
 283 
 284 struct ldb_parse_tree *ldb_parse_tree(void *mem_ctx, const char *s);
 285 char *ldb_filter_from_tree(void *mem_ctx, struct ldb_parse_tree *tree);
 286 
 287 /**
 288    Encode a binary blob
 289 
 290    This function encodes a binary blob using the encoding rules in RFC
 291    2254 (Section 4). This function also escapes any non-printable
 292    characters.
 293 
 294    \param ctx the memory context to allocate the return string in.
 295    \param val the (potentially) binary data to be encoded
 296 
 297    \return the encoded data as a null terminated string
 298 
 299    \sa <a href="http://www.ietf.org/rfc/rfc2252.txt">RFC 2252</a>.
 300 */
 301 char *ldb_binary_encode(void *ctx, struct ldb_val val);
 302 
 303 /**
 304    Encode a string
 305 
 306    This function encodes a string using the encoding rules in RFC 2254
 307    (Section 4). This function also escapes any non-printable
 308    characters.
 309 
 310    \param mem_ctx the memory context to allocate the return string in.
 311    \param string the string to be encoded
 312 
 313    \return the encoded data as a null terminated string
 314 
 315    \sa <a href="http://www.ietf.org/rfc/rfc2252.txt">RFC 2252</a>.
 316 */
 317 char *ldb_binary_encode_string(void *mem_ctx, const char *string);
 318 
 319 /*
 320   functions for controlling attribute handling
 321 */
 322 typedef int (*ldb_attr_handler_t)(struct ldb_context *, void *mem_ctx, const struct ldb_val *, struct ldb_val *);
 323 typedef int (*ldb_attr_comparison_t)(struct ldb_context *, void *mem_ctx, const struct ldb_val *, const struct ldb_val *);
 324 
 325 /*
 326   attribute handler structure
 327 
 328   attr                  -> The attribute name
 329   flags                 -> LDB_ATTR_FLAG_*
 330   ldif_read_fn          -> convert from ldif to binary format
 331   ldif_write_fn         -> convert from binary to ldif format
 332   canonicalise_fn       -> canonicalise a value, for use by indexing and dn construction
 333   comparison_fn         -> compare two values
 334 */
 335 
 336 struct ldb_attrib_handler {
 337 
 338         const char *attr;
 339         unsigned flags;
 340 
 341         ldb_attr_handler_t ldif_read_fn;
 342         ldb_attr_handler_t ldif_write_fn;
 343         ldb_attr_handler_t canonicalise_fn;
 344         ldb_attr_comparison_t comparison_fn;
 345 };
 346 
 347 /**
 348    The attribute is not returned by default
 349 */
 350 #define LDB_ATTR_FLAG_HIDDEN       (1<<0) 
 351 
 352 /* the attribute handler name should be freed when released */
 353 #define LDB_ATTR_FLAG_ALLOCATED    (1<<1) 
 354 
 355 /**
 356    The attribute is constructed from other attributes
 357 */
 358 #define LDB_ATTR_FLAG_CONSTRUCTED  (1<<1) 
 359 
 360 /**
 361   LDAP attribute syntax for a DN
 362 
 363   This is the well-known LDAP attribute syntax for a DN.
 364 
 365   See <a href="http://www.ietf.org/rfc/rfc2252.txt">RFC 2252</a>, Section 4.3.2 
 366 */
 367 #define LDB_SYNTAX_DN                   "1.3.6.1.4.1.1466.115.121.1.12"
 368 
 369 /**
 370   LDAP attribute syntax for a Directory String
 371 
 372   This is the well-known LDAP attribute syntax for a Directory String.
 373 
 374   \sa <a href="http://www.ietf.org/rfc/rfc2252.txt">RFC 2252</a>, Section 4.3.2 
 375 */
 376 #define LDB_SYNTAX_DIRECTORY_STRING     "1.3.6.1.4.1.1466.115.121.1.15"
 377 
 378 /**
 379   LDAP attribute syntax for an integer
 380 
 381   This is the well-known LDAP attribute syntax for an integer.
 382 
 383   See <a href="http://www.ietf.org/rfc/rfc2252.txt">RFC 2252</a>, Section 4.3.2 
 384 */
 385 #define LDB_SYNTAX_INTEGER              "1.3.6.1.4.1.1466.115.121.1.27"
 386 
 387 /**
 388   LDAP attribute syntax for an octet string
 389 
 390   This is the well-known LDAP attribute syntax for an octet string.
 391 
 392   See <a href="http://www.ietf.org/rfc/rfc2252.txt">RFC 2252</a>, Section 4.3.2 
 393 */
 394 #define LDB_SYNTAX_OCTET_STRING         "1.3.6.1.4.1.1466.115.121.1.40"
 395 
 396 /**
 397   LDAP attribute syntax for UTC time.
 398 
 399   This is the well-known LDAP attribute syntax for a UTC time.
 400 
 401   See <a href="http://www.ietf.org/rfc/rfc2252.txt">RFC 2252</a>, Section 4.3.2 
 402 */
 403 #define LDB_SYNTAX_UTC_TIME             "1.3.6.1.4.1.1466.115.121.1.53"
 404 
 405 #define LDB_SYNTAX_OBJECTCLASS          "LDB_SYNTAX_OBJECTCLASS"
 406 
 407 /* sorting helpers */
 408 typedef int (*ldb_qsort_cmp_fn_t) (void *v1, void *v2, void *opaque);
 409 
 410 /**
 411    OID for the paged results control. This control is included in the
 412    searchRequest and searchResultDone messages as part of the controls
 413    field of the LDAPMessage, as defined in Section 4.1.12 of
 414    LDAP v3. 
 415 
 416    \sa <a href="http://www.ietf.org/rfc/rfc2696.txt">RFC 2696</a>.
 417 */
 418 #define LDB_CONTROL_PAGED_RESULTS_OID   "1.2.840.113556.1.4.319"
 419 
 420 /**
 421    OID for specifying the returned elements of the ntSecurityDescriptor
 422 
 423    \sa <a href="http://msdn.microsoft.com/library/default.asp?url=/library/en-us/ldap/ldap/ldap_server_sd_flags_oid.asp">Microsoft documentation of this OID</a>
 424 */
 425 #define LDB_CONTROL_SD_FLAGS_OID        "1.2.840.113556.1.4.801"
 426 
 427 /**
 428    OID for specifying an advanced scope for the search (one partition)
 429 
 430    \sa <a href="http://msdn.microsoft.com/library/default.asp?url=/library/en-us/ldap/ldap/ldap_server_domain_scope_oid.asp">Microsoft documentation of this OID</a>
 431 */
 432 #define LDB_CONTROL_DOMAIN_SCOPE_OID    "1.2.840.113556.1.4.1339"
 433 
 434 /**
 435    OID for specifying an advanced scope for a search
 436 
 437    \sa <a href="http://msdn.microsoft.com/library/default.asp?url=/library/en-us/ldap/ldap/ldap_server_search_options_oid.asp">Microsoft documentation of this OID</a>
 438 */
 439 #define LDB_CONTROL_SEARCH_OPTIONS_OID  "1.2.840.113556.1.4.1340"
 440 
 441 /**
 442    OID for notification
 443 
 444    \sa <a href="http://msdn.microsoft.com/library/default.asp?url=/library/en-us/ldap/ldap/ldap_server_notification_oid.asp">Microsoft documentation of this OID</a>
 445 */
 446 #define LDB_CONTROL_NOTIFICATION_OID    "1.2.840.113556.1.4.528"
 447 
 448 /**
 449    OID for getting deleted objects
 450 
 451    \sa <a href="http://msdn.microsoft.com/library/default.asp?url=/library/en-us/ldap/ldap/ldap_server_show_deleted_oid.asp">Microsoft documentation of this OID</a>
 452 */
 453 #define LDB_CONTROL_SHOW_DELETED_OID    "1.2.840.113556.1.4.417"
 454 
 455 /**
 456    OID for extended DN
 457 
 458    \sa <a href="http://msdn.microsoft.com/library/default.asp?url=/library/en-us/ldap/ldap/ldap_server_extended_dn_oid.asp">Microsoft documentation of this OID</a>
 459 */
 460 #define LDB_CONTROL_EXTENDED_DN_OID     "1.2.840.113556.1.4.529"
 461 
 462 /**
 463    OID for LDAP server sort result extension.
 464 
 465    This control is included in the searchRequest message as part of
 466    the controls field of the LDAPMessage, as defined in Section 4.1.12
 467    of LDAP v3. The controlType is set to
 468    "1.2.840.113556.1.4.473". The criticality MAY be either TRUE or
 469    FALSE (where absent is also equivalent to FALSE) at the client's
 470    option.
 471 
 472    \sa <a href="http://www.ietf.org/rfc/rfc2891.txt">RFC 2891</a>.
 473 */
 474 #define LDB_CONTROL_SERVER_SORT_OID     "1.2.840.113556.1.4.473"
 475 
 476 /**
 477    OID for LDAP server sort result response extension.
 478 
 479    This control is included in the searchResultDone message as part of
 480    the controls field of the LDAPMessage, as defined in Section 4.1.12 of
 481    LDAP v3.
 482 
 483    \sa <a href="http://www.ietf.org/rfc/rfc2891.txt">RFC 2891</a>.
 484 */
 485 #define LDB_CONTROL_SORT_RESP_OID       "1.2.840.113556.1.4.474"
 486 
 487 /**
 488    OID for LDAP Attribute Scoped Query extension.
 489 
 490    This control is included in SearchRequest or SearchResponse
 491    messages as part of the controls field of the LDAPMessage.
 492 */
 493 #define LDB_CONTROL_ASQ_OID             "1.2.840.113556.1.4.1504"
 494 
 495 /**
 496    OID for LDAP Directory Sync extension. 
 497 
 498    This control is included in SearchRequest or SearchResponse
 499    messages as part of the controls field of the LDAPMessage.
 500 */
 501 #define LDB_CONTROL_DIRSYNC_OID         "1.2.840.113556.1.4.841"
 502 
 503 
 504 /**
 505    OID for LDAP Virtual List View Request extension.
 506 
 507    This control is included in SearchRequest messages
 508    as part of the controls field of the LDAPMessage.
 509 */
 510 #define LDB_CONTROL_VLV_REQ_OID         "2.16.840.1.113730.3.4.9"
 511 
 512 /**
 513    OID for LDAP Virtual List View Response extension.
 514 
 515    This control is included in SearchResponse messages
 516    as part of the controls field of the LDAPMessage.
 517 */
 518 #define LDB_CONTROL_VLV_RESP_OID        "2.16.840.1.113730.3.4.10"
 519 
 520 /**
 521    OID to let modifies don't give an error when adding an existing
 522    attribute with the same value or deleting an nonexisting one attribute
 523 
 524    \sa <a href="http://msdn.microsoft.com/library/default.asp?url=/library/en-us/ldap/ldap/ldap_server_permissive_modify_oid.asp">Microsoft documentation of this OID</a>
 525 */
 526 #define LDB_CONTROL_PERMISSIVE_MODIFY_OID       "1.2.840.113556.1.4.1413"
 527 
 528 /**
 529    OID for LDAP Extended Operation START_TLS.
 530 
 531    This Extended operation is used to start a new TLS
 532    channel on top of a clear text channel.
 533 */
 534 #define LDB_EXTENDED_START_TLS_OID      "1.3.6.1.4.1.1466.20037"
 535 
 536 /**
 537    OID for LDAP Extended Operation START_TLS.
 538 
 539    This Extended operation is used to start a new TLS
 540    channel on top of a clear text channel.
 541 */
 542 #define LDB_EXTENDED_DYNAMIC_OID        "1.3.6.1.4.1.1466.101.119.1"
 543 
 544 /**
 545    OID for LDAP Extended Operation START_TLS.
 546 
 547    This Extended operation is used to start a new TLS
 548    channel on top of a clear text channel.
 549 */
 550 #define LDB_EXTENDED_FAST_BIND_OID      "1.2.840.113556.1.4.1781"
 551 
 552 struct ldb_sd_flags_control {
 553         /*
 554          * request the owner    0x00000001
 555          * request the group    0x00000002
 556          * request the DACL     0x00000004
 557          * request the SACL     0x00000008
 558          */
 559         unsigned secinfo_flags;
 560 };
 561 
 562 struct ldb_search_options_control {
 563         /*
 564          * DOMAIN_SCOPE         0x00000001
 565          * this limits the search to one partition,
 566          * and no referrals will be returned.
 567          * (Note this doesn't limit the entries by there
 568          *  objectSid belonging to a domain! Builtin and Foreign Sids
 569          *  are still returned)
 570          *
 571          * PHANTOM_ROOT         0x00000002
 572          * this search on the whole tree on a domain controller
 573          * over multiple partitions without referrals.
 574          * (This is the default behavior on the Global Catalog Port)
 575          */
 576         unsigned search_options;
 577 };
 578 
 579 struct ldb_paged_control {
 580         int size;
 581         int cookie_len;
 582         char *cookie;
 583 };
 584 
 585 struct ldb_extended_dn_control {
 586         int type;
 587 };
 588 
 589 struct ldb_server_sort_control {
 590         char *attributeName;
 591         char *orderingRule;
 592         int reverse;
 593 };
 594 
 595 struct ldb_sort_resp_control {
 596         int result;
 597         char *attr_desc;
 598 };
 599 
 600 struct ldb_asq_control {
 601         int request;
 602         char *source_attribute;
 603         int src_attr_len;
 604         int result;
 605 };
 606 
 607 struct ldb_dirsync_control {
 608         int flags;
 609         int max_attributes;
 610         int cookie_len;
 611         char *cookie;
 612 };
 613 
 614 struct ldb_vlv_req_control {
 615         int beforeCount;
 616         int afterCount;
 617         int type;
 618         union {
 619                 struct {
 620                         int offset;
 621                         int contentCount;
 622                 } byOffset;
 623                 struct {
 624                         int value_len;
 625                         char *value;
 626                 } gtOrEq;
 627         } match;
 628         int ctxid_len;
 629         char *contextId;
 630 };
 631 
 632 struct ldb_vlv_resp_control {
 633         int targetPosition;
 634         int contentCount;
 635         int vlv_result;
 636         int ctxid_len;
 637         char *contextId;
 638 };
 639 
 640 struct ldb_control {
 641         const char *oid;
 642         int critical;
 643         void *data;
 644 };
 645 
 646 enum ldb_request_type {
 647         LDB_SEARCH,
 648         LDB_ADD,
 649         LDB_MODIFY,
 650         LDB_DELETE,
 651         LDB_RENAME,
 652         LDB_EXTENDED,
 653         LDB_REQ_REGISTER_CONTROL,
 654         LDB_REQ_REGISTER_PARTITION,
 655         LDB_SEQUENCE_NUMBER
 656 };
 657 
 658 enum ldb_reply_type {
 659         LDB_REPLY_ENTRY,
 660         LDB_REPLY_REFERRAL,
 661         LDB_REPLY_EXTENDED,
 662         LDB_REPLY_DONE
 663 };
 664 
 665 enum ldb_wait_type {
 666         LDB_WAIT_ALL,
 667         LDB_WAIT_NONE
 668 };
 669 
 670 enum ldb_state {
 671         LDB_ASYNC_INIT,
 672         LDB_ASYNC_PENDING,
 673         LDB_ASYNC_DONE
 674 };
 675 
 676 struct ldb_result {
 677         unsigned int count;
 678         struct ldb_message **msgs;
 679         char **refs;
 680         struct ldb_control **controls;
 681 };
 682 
 683 struct ldb_extended {
 684         const char *oid;
 685         const char *value;
 686         int value_len;
 687 };
 688 
 689 struct ldb_reply {
 690         enum ldb_reply_type type;
 691         struct ldb_message *message;
 692         struct ldb_extended *response;
 693         char *referral;
 694         struct ldb_control **controls;
 695 };
 696 
 697 struct ldb_handle {
 698         int status;
 699         enum ldb_state state;
 700         void *private_data;
 701         struct ldb_module *module;
 702 };
 703 
 704 struct ldb_search {
 705         const struct ldb_dn *base;
 706         enum ldb_scope scope;
 707         const struct ldb_parse_tree *tree;
 708         const char * const *attrs;
 709         struct ldb_result *res;
 710 };
 711 
 712 struct ldb_add {
 713         const struct ldb_message *message;
 714 };
 715 
 716 struct  ldb_modify {
 717         const struct ldb_message *message;
 718 };
 719 
 720 struct ldb_delete {
 721         const struct ldb_dn *dn;
 722 };
 723 
 724 struct ldb_rename {
 725         const struct ldb_dn *olddn;
 726         const struct ldb_dn *newdn;
 727 };
 728 
 729 struct ldb_register_control {
 730         const char *oid;
 731 };
 732 
 733 struct ldb_register_partition {
 734         const struct ldb_dn *dn;
 735 };
 736 
 737 struct ldb_sequence_number {
 738         enum ldb_sequence_type {
 739                 LDB_SEQ_HIGHEST_SEQ,
 740                 LDB_SEQ_HIGHEST_TIMESTAMP,
 741                 LDB_SEQ_NEXT
 742         } type;
 743         uint64_t seq_num;
 744         uint32_t flags;
 745 };
 746 
 747 typedef int (*ldb_request_callback_t)(struct ldb_context *, void *, struct ldb_reply *);
 748 struct ldb_request {
 749 
 750         enum ldb_request_type operation;
 751 
 752         union {
 753                 struct ldb_search search;
 754                 struct ldb_add    add;
 755                 struct ldb_modify mod;
 756                 struct ldb_delete del;
 757                 struct ldb_rename rename;
 758                 struct ldb_register_control reg_control;
 759                 struct ldb_register_partition reg_partition;
 760                 struct ldb_sequence_number seq_num;
 761         } op;
 762 
 763         struct ldb_control **controls;
 764 
 765         void *context;
 766         ldb_request_callback_t callback;
 767 
 768         int timeout;
 769         time_t starttime;
 770         struct ldb_handle *handle;
 771 };
 772 
 773 int ldb_request(struct ldb_context *ldb, struct ldb_request *request);
 774 
 775 int ldb_wait(struct ldb_handle *handle, enum ldb_wait_type type);
 776 
 777 int ldb_set_timeout(struct ldb_context *ldb, struct ldb_request *req, int timeout);
 778 int ldb_set_timeout_from_prev_req(struct ldb_context *ldb, struct ldb_request *oldreq, struct ldb_request *newreq);
 779 void ldb_set_create_perms(struct ldb_context *ldb, unsigned int perms);
 780 
 781 /**
 782   Initialise ldbs' global information
 783 
 784   This is required before any other LDB call
 785 
 786   \return 0 if initialisation succeeded, -1 otherwise
 787 */
 788 int ldb_global_init(void);
 789 
 790 /**
 791   Initialise an ldb context
 792 
 793   This is required before any other LDB call.
 794 
 795   \param mem_ctx pointer to a talloc memory context. Pass NULL if there is
 796   no suitable context available.
 797 
 798   \return pointer to ldb_context that should be free'd (using talloc_free())
 799   at the end of the program.
 800 */
 801 struct ldb_context *ldb_init(void *mem_ctx);
 802 
 803 /**
 804    Connect to a database.
 805 
 806    This is typically called soon after ldb_init(), and is required prior to
 807    any search or database modification operations.
 808 
 809    The URL can be one of the following forms:
 810     - tdb://path
 811     - ldapi://path
 812     - ldap://host
 813     - sqlite://path
 814 
 815    \param ldb the context associated with the database (from ldb_init())
 816    \param url the URL of the database to connect to, as noted above
 817    \param flags a combination of LDB_FLG_* to modify the connection behaviour
 818    \param options backend specific options - passed uninterpreted to the backend
 819 
 820    \return result code (LDB_SUCCESS on success, or a failure code)
 821 
 822    \note It is an error to connect to a database that does not exist in readonly mode
 823    (that is, with LDB_FLG_RDONLY). However in read-write mode, the database will be
 824    created if it does not exist.
 825 */
 826 int ldb_connect(struct ldb_context *ldb, const char *url, unsigned int flags, const char *options[]);
 827 
 828 /*
 829   return an automatic baseDN from the defaultNamingContext of the rootDSE
 830   This value have been set in an opaque pointer at connection time
 831 */
 832 const struct ldb_dn *ldb_get_default_basedn(struct ldb_context *ldb);
 833 
 834 
 835 /**
 836   The Default iasync search callback function 
 837 
 838   \param ldb the context associated with the database (from ldb_init())
 839   \param context the callback context
 840   \param ares a single reply from the async core
 841 
 842   \return result code (LDB_SUCCESS on success, or a failure code)
 843 
 844   \note this function expects the context to always be an struct ldb_result pointer
 845   AND a talloc context, this function will steal on the context each message
 846   from the ares reply passed on by the async core so that in the end all the
 847   messages will be in the context (ldb_result)  memory tree.
 848   Freeing the passed context (ldb_result tree) will free all the resources
 849   (the request need to be freed separately and the result doe not depend on the
 850   request that can be freed as sson as the search request is finished)
 851 */
 852 
 853 int ldb_search_default_callback(struct ldb_context *ldb, void *context, struct ldb_reply *ares);
 854 
 855 /**
 856   Helper function to build a search request
 857 
 858   \param ret_req the request structure is returned here (talloced on mem_ctx)
 859   \param ldb the context associated with the database (from ldb_init())
 860   \param mem_ctx a talloc emmory context (used as parent of ret_req)
 861   \param base the Base Distinguished Name for the query (use ldb_dn_new() for an empty one)
 862   \param scope the search scope for the query
 863   \param expression the search expression to use for this query
 864   \param attrs the search attributes for the query (pass NULL if none required)
 865   \param controls an array of controls
 866   \param context the callback function context
 867   \param the callback function to handle the async replies
 868 
 869   \return result code (LDB_SUCCESS on success, or a failure code)
 870 */
 871 
 872 int ldb_build_search_req(struct ldb_request **ret_req,
 873                         struct ldb_context *ldb,
 874                         void *mem_ctx,
 875                         const struct ldb_dn *base,
 876                         enum ldb_scope scope,
 877                         const char *expression,
 878                         const char * const *attrs,
 879                         struct ldb_control **controls,
 880                         void *context,
 881                         ldb_request_callback_t callback);
 882 
 883 /**
 884   Helper function to build an add request
 885 
 886   \param ret_req the request structure is returned here (talloced on mem_ctx)
 887   \param ldb the context associated with the database (from ldb_init())
 888   \param mem_ctx a talloc emmory context (used as parent of ret_req)
 889   \param message contains the entry to be added 
 890   \param controls an array of controls
 891   \param context the callback function context
 892   \param the callback function to handle the async replies
 893 
 894   \return result code (LDB_SUCCESS on success, or a failure code)
 895 */
 896 
 897 int ldb_build_add_req(struct ldb_request **ret_req,
 898                         struct ldb_context *ldb,
 899                         void *mem_ctx,
 900                         const struct ldb_message *message,
 901                         struct ldb_control **controls,
 902                         void *context,
 903                         ldb_request_callback_t callback);
 904 
 905 /**
 906   Helper function to build a modify request
 907 
 908   \param ret_req the request structure is returned here (talloced on mem_ctx)
 909   \param ldb the context associated with the database (from ldb_init())
 910   \param mem_ctx a talloc emmory context (used as parent of ret_req)
 911   \param message contains the entry to be modified
 912   \param controls an array of controls
 913   \param context the callback function context
 914   \param the callback function to handle the async replies
 915 
 916   \return result code (LDB_SUCCESS on success, or a failure code)
 917 */
 918 
 919 int ldb_build_mod_req(struct ldb_request **ret_req,
 920                         struct ldb_context *ldb,
 921                         void *mem_ctx,
 922                         const struct ldb_message *message,
 923                         struct ldb_control **controls,
 924                         void *context,
 925                         ldb_request_callback_t callback);
 926 
 927 /**
 928   Helper function to build a delete request
 929 
 930   \param ret_req the request structure is returned here (talloced on mem_ctx)
 931   \param ldb the context associated with the database (from ldb_init())
 932   \param mem_ctx a talloc emmory context (used as parent of ret_req)
 933   \param dn the DN to be deleted
 934   \param controls an array of controls
 935   \param context the callback function context
 936   \param the callback function to handle the async replies
 937 
 938   \return result code (LDB_SUCCESS on success, or a failure code)
 939 */
 940 
 941 int ldb_build_del_req(struct ldb_request **ret_req,
 942                         struct ldb_context *ldb,
 943                         void *mem_ctx,
 944                         const struct ldb_dn *dn,
 945                         struct ldb_control **controls,
 946                         void *context,
 947                         ldb_request_callback_t callback);
 948 
 949 /**
 950   Helper function to build a rename request
 951 
 952   \param ret_req the request structure is returned here (talloced on mem_ctx)
 953   \param ldb the context associated with the database (from ldb_init())
 954   \param mem_ctx a talloc emmory context (used as parent of ret_req)
 955   \param olddn the old DN
 956   \param newdn the new DN
 957   \param controls an array of controls
 958   \param context the callback function context
 959   \param the callback function to handle the async replies
 960 
 961   \return result code (LDB_SUCCESS on success, or a failure code)
 962 */
 963 
 964 int ldb_build_rename_req(struct ldb_request **ret_req,
 965                         struct ldb_context *ldb,
 966                         void *mem_ctx,
 967                         const struct ldb_dn *olddn,
 968                         const struct ldb_dn *newdn,
 969                         struct ldb_control **controls,
 970                         void *context,
 971                         ldb_request_callback_t callback);
 972 
 973 /**
 974   Search the database
 975 
 976   This function searches the database, and returns 
 977   records that match an LDAP-like search expression
 978 
 979   \param ldb the context associated with the database (from ldb_init())
 980   \param base the Base Distinguished Name for the query (use ldb_dn_new() for an empty one)
 981   \param scope the search scope for the query
 982   \param expression the search expression to use for this query
 983   \param attrs the search attributes for the query (pass NULL if none required)
 984   \param res the return result
 985 
 986   \return result code (LDB_SUCCESS on success, or a failure code)
 987 
 988   \note use talloc_free() to free the ldb_result returned
 989 */
 990 int ldb_search(struct ldb_context *ldb, TALLOC_CTX *mem_ctx,
 991                        struct ldb_result **result, struct ldb_dn *base,
 992                        enum ldb_scope scope, const char * const *attrs,
 993                        const char *exp_fmt, ...);
 994 
 995 /*
 996   like ldb_search() but takes a parse tree
 997 */
 998 int ldb_search_bytree(struct ldb_context *ldb, 
 999                       const struct ldb_dn *base,
1000                       enum ldb_scope scope,
1001                       struct ldb_parse_tree *tree,
1002                       const char * const *attrs, struct ldb_result **res);
1003 
1004 /**
1005   Add a record to the database.
1006 
1007   This function adds a record to the database. This function will fail
1008   if a record with the specified class and key already exists in the
1009   database. 
1010 
1011   \param ldb the context associated with the database (from
1012   ldb_init())
1013   \param message the message containing the record to add.
1014 
1015   \return result code (LDB_SUCCESS if the record was added, otherwise
1016   a failure code)
1017 */
1018 int ldb_add(struct ldb_context *ldb, 
1019             const struct ldb_message *message);
1020 
1021 /**
1022   Modify the specified attributes of a record
1023 
1024   This function modifies a record that is in the database.
1025 
1026   \param ldb the context associated with the database (from
1027   ldb_init())
1028   \param message the message containing the changes required.
1029 
1030   \return result code (LDB_SUCCESS if the record was modified as
1031   requested, otherwise a failure code)
1032 */
1033 int ldb_modify(struct ldb_context *ldb, 
1034                const struct ldb_message *message);
1035 
1036 /**
1037   Rename a record in the database
1038 
1039   This function renames a record in the database.
1040 
1041   \param ldb the context associated with the database (from
1042   ldb_init())
1043   \param olddn the DN for the record to be renamed.
1044   \param newdn the new DN 
1045 
1046   \return result code (LDB_SUCCESS if the record was renamed as
1047   requested, otherwise a failure code)
1048 */
1049 int ldb_rename(struct ldb_context *ldb, const struct ldb_dn *olddn, const struct ldb_dn *newdn);
1050 
1051 /**
1052   Delete a record from the database
1053 
1054   This function deletes a record from the database.
1055 
1056   \param ldb the context associated with the database (from
1057   ldb_init())
1058   \param dn the DN for the record to be deleted.
1059 
1060   \return result code (LDB_SUCCESS if the record was deleted,
1061   otherwise a failure code)
1062 */
1063 int ldb_delete(struct ldb_context *ldb, const struct ldb_dn *dn);
1064 
1065 /**
1066   start a transaction
1067 */
1068 int ldb_transaction_start(struct ldb_context *ldb);
1069 
1070 /**
1071   commit a transaction
1072 */
1073 int ldb_transaction_commit(struct ldb_context *ldb);
1074 
1075 /**
1076   cancel a transaction
1077 */
1078 int ldb_transaction_cancel(struct ldb_context *ldb);
1079 
1080 
1081 /**
1082   return extended error information from the last call
1083 */
1084 const char *ldb_errstring(struct ldb_context *ldb);
1085 
1086 /**
1087   return a string explaining what a ldb error constant meancs
1088 */
1089 const char *ldb_strerror(int ldb_err);
1090 
1091 /**
1092   setup the default utf8 functions
1093   FIXME: these functions do not yet handle utf8
1094 */
1095 void ldb_set_utf8_default(struct ldb_context *ldb);
1096 
1097 /**
1098    Casefold a string
1099 
1100    \param ldb the ldb context
1101    \param mem_ctx the memory context to allocate the result string
1102    memory from. 
1103    \param s the string that is to be folded
1104    \return a copy of the string, converted to upper case
1105 
1106    \note The default function is not yet UTF8 aware. Provide your own
1107          set of functions through ldb_set_utf8_fns()
1108 */
1109 char *ldb_casefold(struct ldb_context *ldb, void *mem_ctx, const char *s);
1110 
1111 /**
1112    Check the attribute name is valid according to rfc2251
1113    \param s tthe string to check
1114 
1115    \return 1 if the name is ok
1116 */
1117 int ldb_valid_attr_name(const char *s);
1118 
1119 /*
1120   ldif manipulation functions
1121 */
1122 /**
1123    Write an LDIF message
1124 
1125    This function writes an LDIF message using a caller supplied  write
1126    function.
1127 
1128    \param ldb the ldb context (from ldb_init())
1129    \param fprintf_fn a function pointer for the write function. This must take
1130    a private data pointer, followed by a format string, and then a variable argument
1131    list. 
1132    \param private_data pointer that will be provided back to the write
1133    function. This is useful for maintaining state or context.
1134    \param ldif the message to write out
1135 
1136    \return the total number of bytes written, or an error code as returned
1137    from the write function.
1138 
1139    \sa ldb_ldif_write_file for a more convenient way to write to a
1140    file stream.
1141 
1142    \sa ldb_ldif_read for the reader equivalent to this function.
1143 */
1144 int ldb_ldif_write(struct ldb_context *ldb,
1145                    int (*fprintf_fn)(void *, const char *, ...) PRINTF_ATTRIBUTE(2,3), 
1146                    void *private_data,
1147                    const struct ldb_ldif *ldif);
1148 
1149 /**
1150    Clean up an LDIF message
1151 
1152    This function cleans up a LDIF message read using ldb_ldif_read()
1153    or related functions (such as ldb_ldif_read_string() and
1154    ldb_ldif_read_file().
1155 
1156    \param ldb the ldb context (from ldb_init())
1157    \param msg the message to clean up and free
1158 
1159 */
1160 void ldb_ldif_read_free(struct ldb_context *ldb, struct ldb_ldif *msg);
1161 
1162 /**
1163    Read an LDIF message
1164 
1165    This function creates an LDIF message using a caller supplied read
1166    function. 
1167 
1168    \param ldb the ldb context (from ldb_init())
1169    \param fgetc_fn a function pointer for the read function. This must
1170    take a private data pointer, and must return a pointer to an
1171    integer corresponding to the next byte read (or EOF if there is no
1172    more data to be read).
1173    \param private_data pointer that will be provided back to the read
1174    function. This is udeful for maintaining state or context.
1175 
1176    \return the LDIF message that has been read in
1177 
1178    \note You must free the LDIF message when no longer required, using
1179    ldb_ldif_read_free().
1180 
1181    \sa ldb_ldif_read_file for a more convenient way to read from a
1182    file stream.
1183 
1184    \sa ldb_ldif_read_string for a more convenient way to read from a
1185    string (char array).
1186 
1187    \sa ldb_ldif_write for the writer equivalent to this function.
1188 */
1189 struct ldb_ldif *ldb_ldif_read(struct ldb_context *ldb, 
1190                                int (*fgetc_fn)(void *), void *private_data);
1191 
1192 /**
1193    Read an LDIF message from a file
1194 
1195    This function reads the next LDIF message from the contents of a
1196    file stream. If you want to get all of the LDIF messages, you will
1197    need to repeatedly call this function, until it returns NULL.
1198 
1199    \param ldb the ldb context (from ldb_init())
1200    \param f the file stream to read from (typically from fdopen())
1201 
1202    \sa ldb_ldif_read_string for an equivalent function that will read
1203    from a string (char array).
1204 
1205    \sa ldb_ldif_write_file for the writer equivalent to this function.
1206 
1207 */
1208 struct ldb_ldif *ldb_ldif_read_file(struct ldb_context *ldb, FILE *f);
1209 
1210 /**
1211    Read an LDIF message from a string
1212 
1213    This function reads the next LDIF message from the contents of a char
1214    array. If you want to get all of the LDIF messages, you will need
1215    to repeatedly call this function, until it returns NULL.
1216 
1217    \param ldb the ldb context (from ldb_init())
1218    \param s pointer to the char array to read from
1219 
1220    \sa ldb_ldif_read_file for an equivalent function that will read
1221    from a file stream.
1222 
1223    \sa ldb_ldif_write for a more general (arbitrary read function)
1224    version of this function.
1225 */
1226 struct ldb_ldif *ldb_ldif_read_string(struct ldb_context *ldb, const char **s);
1227 
1228 /**
1229    Write an LDIF message to a file
1230 
1231    \param ldb the ldb context (from ldb_init())
1232    \param f the file stream to write to (typically from fdopen())
1233    \param msg the message to write out
1234 
1235    \return the total number of bytes written, or a negative error code
1236 
1237    \sa ldb_ldif_read_file for the reader equivalent to this function.
1238 */
1239 int ldb_ldif_write_file(struct ldb_context *ldb, FILE *f, const struct ldb_ldif *msg);
1240 
1241 /**
1242    Base64 encode a buffer
1243 
1244    \param mem_ctx the memory context that the result is allocated
1245    from. 
1246    \param buf pointer to the array that is to be encoded
1247    \param len the number of elements in the array to be encoded
1248 
1249    \return pointer to an array containing the encoded data
1250 
1251    \note The caller is responsible for freeing the result
1252 */
1253 char *ldb_base64_encode(void *mem_ctx, const char *buf, int len);
1254 
1255 /**
1256    Base64 decode a buffer
1257 
1258    This function decodes a base64 encoded string in place.
1259 
1260    \param s the string to decode.
1261 
1262    \return the length of the returned (decoded) string.
1263 
1264    \note the string is null terminated, but the null terminator is not
1265    included in the length.
1266 */
1267 int ldb_base64_decode(char *s);
1268 
1269 int ldb_attrib_add_handlers(struct ldb_context *ldb, 
1270                             const struct ldb_attrib_handler *handlers, 
1271                             unsigned num_handlers);
1272 
1273 /* The following definitions come from lib/ldb/common/ldb_dn.c  */
1274 
1275 int ldb_dn_is_special(const struct ldb_dn *dn);
1276 int ldb_dn_check_special(const struct ldb_dn *dn, const char *check);
1277 char *ldb_dn_escape_value(void *mem_ctx, struct ldb_val value);
1278 struct ldb_dn *ldb_dn_new(void *mem_ctx);
1279 struct ldb_dn *ldb_dn_explode(void *mem_ctx, const char *dn);
1280 struct ldb_dn *ldb_dn_explode_or_special(void *mem_ctx, const char *dn);
1281 char *ldb_dn_linearize(void *mem_ctx, const struct ldb_dn *edn);
1282 char *ldb_dn_linearize_casefold(struct ldb_context *ldb, void *mem_ctx, const struct ldb_dn *edn);
1283 int ldb_dn_compare_base(struct ldb_context *ldb, const struct ldb_dn *base, const struct ldb_dn *dn);
1284 int ldb_dn_compare(struct ldb_context *ldb, const struct ldb_dn *edn0, const struct ldb_dn *edn1);
1285 struct ldb_dn *ldb_dn_casefold(struct ldb_context *ldb, void *mem_ctx, const struct ldb_dn *edn);
1286 struct ldb_dn *ldb_dn_explode_casefold(struct ldb_context *ldb, void *mem_ctx, const char *dn);
1287 struct ldb_dn *ldb_dn_copy_partial(void *mem_ctx, const struct ldb_dn *dn, int num_el);
1288 struct ldb_dn *ldb_dn_copy(void *mem_ctx, const struct ldb_dn *dn);
1289 struct ldb_dn *ldb_dn_copy_rebase(void *mem_ctx, const struct ldb_dn *old, const struct ldb_dn *old_base, const struct ldb_dn *new_base);
1290 struct ldb_dn *ldb_dn_get_parent(void *mem_ctx, const struct ldb_dn *dn);
1291 struct ldb_dn_component *ldb_dn_build_component(void *mem_ctx, const char *attr,
1292                                                                const char *val);
1293 struct ldb_dn *ldb_dn_build_child(void *mem_ctx, const char *attr,
1294                                                  const char * value,
1295                                                  const struct ldb_dn *base);
1296 struct ldb_dn *ldb_dn_compose(void *mem_ctx, const struct ldb_dn *dn1, const struct ldb_dn *dn2);
1297 struct ldb_dn *ldb_dn_string_compose(void *mem_ctx, const struct ldb_dn *base, const char *child_fmt, ...) PRINTF_ATTRIBUTE(3,4);
1298 char *ldb_dn_canonical_string(void *mem_ctx, const struct ldb_dn *dn);
1299 char *ldb_dn_canonical_ex_string(void *mem_ctx, const struct ldb_dn *dn);
1300 int ldb_dn_get_comp_num(const struct ldb_dn *dn);
1301 const char *ldb_dn_get_component_name(const struct ldb_dn *dn, unsigned int num);
1302 const struct ldb_val *ldb_dn_get_component_val(const struct ldb_dn *dn, unsigned int num);
1303 const char *ldb_dn_get_rdn_name(const struct ldb_dn *dn);
1304 const struct ldb_val *ldb_dn_get_rdn_val(const struct ldb_dn *dn);
1305 int ldb_dn_set_component(struct ldb_dn *dn, int num, const char *name, const struct ldb_val val);
1306 
1307 
1308 
1309 /* useful functions for ldb_message structure manipulation */
1310 int ldb_dn_cmp(struct ldb_context *ldb, const char *dn1, const char *dn2);
1311 
1312 /**
1313    Compare two attributes
1314 
1315    This function compares to attribute names. Note that this is a
1316    case-insensitive comparison.
1317 
1318    \param attr1 the first attribute name to compare
1319    \param attr2 the second attribute name to compare
1320 
1321    \return 0 if the attribute names are the same, or only differ in
1322    case; non-zero if there are any differences
1323 */
1324 int ldb_attr_cmp(const char *attr1, const char *attr2);
1325 char *ldb_attr_casefold(void *mem_ctx, const char *s);
1326 int ldb_attr_dn(const char *attr);
1327 
1328 /**
1329    Create an empty message
1330 
1331    \param mem_ctx the memory context to create in. You can pass NULL
1332    to get the top level context, however the ldb context (from
1333    ldb_init()) may be a better choice
1334 */
1335 struct ldb_message *ldb_msg_new(void *mem_ctx);
1336 
1337 /**
1338    Find an element within an message
1339 */
1340 struct ldb_message_element *ldb_msg_find_element(const struct ldb_message *msg, 
1341                                                  const char *attr_name);
1342 
1343 /**
1344    Compare two ldb_val values
1345 
1346    \param v1 first ldb_val structure to be tested
1347    \param v2 second ldb_val structure to be tested
1348 
1349    \return 1 for a match, 0 if there is any difference
1350 */
1351 int ldb_val_equal_exact(const struct ldb_val *v1, const struct ldb_val *v2);
1352 
1353 /**
1354    find a value within an ldb_message_element
1355 
1356    \param el the element to search
1357    \param val the value to search for
1358 
1359    \note This search is case sensitive
1360 */
1361 struct ldb_val *ldb_msg_find_val(const struct ldb_message_element *el, 
1362                                  struct ldb_val *val);
1363 
1364 /**
1365    add a new empty element to a ldb_message
1366 */
1367 int ldb_msg_add_empty(struct ldb_message *msg,
1368                 const char *attr_name,
1369                 int flags,
1370                 struct ldb_message_element **return_el);
1371 
1372 /**
1373    add a element to a ldb_message
1374 */
1375 int ldb_msg_add(struct ldb_message *msg, 
1376                 const struct ldb_message_element *el, 
1377                 int flags);
1378 int ldb_msg_add_value(struct ldb_message *msg, 
1379                 const char *attr_name,
1380                 const struct ldb_val *val,
1381                 struct ldb_message_element **return_el);
1382 int ldb_msg_add_steal_value(struct ldb_message *msg, 
1383                       const char *attr_name,
1384                       struct ldb_val *val);
1385 int ldb_msg_add_steal_string(struct ldb_message *msg, 
1386                              const char *attr_name, char *str);
1387 int ldb_msg_add_string(struct ldb_message *msg, 
1388                        const char *attr_name, const char *str);
1389 int ldb_msg_add_fmt(struct ldb_message *msg, 
1390                     const char *attr_name, const char *fmt, ...) PRINTF_ATTRIBUTE(3,4);
1391 
1392 /**
1393    compare two message elements - return 0 on match
1394 */
1395 int ldb_msg_element_compare(struct ldb_message_element *el1, 
1396                             struct ldb_message_element *el2);
1397 
1398 /**
1399    Find elements in a message.
1400 
1401    This function finds elements and converts to a specific type, with
1402    a give default value if not found. Assumes that elements are
1403    single valued.
1404 */
1405 const struct ldb_val *ldb_msg_find_ldb_val(const struct ldb_message *msg, const char *attr_name);
1406 int ldb_msg_find_attr_as_int(const struct ldb_message *msg, 
1407                              const char *attr_name,
1408                              int default_value);
1409 unsigned int ldb_msg_find_attr_as_uint(const struct ldb_message *msg, 
1410                                        const char *attr_name,
1411                                        unsigned int default_value);
1412 int64_t ldb_msg_find_attr_as_int64(const struct ldb_message *msg, 
1413                                    const char *attr_name,
1414                                    int64_t default_value);
1415 uint64_t ldb_msg_find_attr_as_uint64(const struct ldb_message *msg, 
1416                                      const char *attr_name,
1417                                      uint64_t default_value);
1418 double ldb_msg_find_attr_as_double(const struct ldb_message *msg, 
1419                                    const char *attr_name,
1420                                    double default_value);
1421 int ldb_msg_find_attr_as_bool(const struct ldb_message *msg, 
1422                               const char *attr_name,
1423                               int default_value);
1424 const char *ldb_msg_find_attr_as_string(const struct ldb_message *msg, 
1425                                         const char *attr_name,
1426                                         const char *default_value);
1427 
1428 struct ldb_dn *ldb_msg_find_attr_as_dn(void *mem_ctx,
1429                                        const struct ldb_message *msg,
1430                                         const char *attr_name);
1431 
1432 void ldb_msg_sort_elements(struct ldb_message *msg);
1433 
1434 struct ldb_message *ldb_msg_copy_shallow(void *mem_ctx, 
1435                                          const struct ldb_message *msg);
1436 struct ldb_message *ldb_msg_copy(void *mem_ctx, 
1437                                  const struct ldb_message *msg);
1438 
1439 struct ldb_message *ldb_msg_canonicalize(struct ldb_context *ldb, 
1440                                          const struct ldb_message *msg);
1441 
1442 
1443 struct ldb_message *ldb_msg_diff(struct ldb_context *ldb, 
1444                                  struct ldb_message *msg1,
1445                                  struct ldb_message *msg2);
1446 
1447 int ldb_msg_check_string_attribute(const struct ldb_message *msg,
1448                                    const char *name,
1449                                    const char *value);
1450 
1451 /**
1452    Integrity check an ldb_message
1453 
1454    This function performs basic sanity / integrity checks on an
1455    ldb_message.
1456 
1457    \param msg the message to check
1458 
1459    \return LDB_SUCCESS if the message is OK, or a non-zero error code
1460    (one of LDB_ERR_INVALID_DN_SYNTAX, LDB_ERR_ENTRY_ALREADY_EXISTS or
1461    LDB_ERR_INVALID_ATTRIBUTE_SYNTAX) if there is a problem with a
1462    message.
1463 */
1464 int ldb_msg_sanity_check(struct ldb_context *ldb,
1465                          const struct ldb_message *msg);
1466 
1467 /**
1468    Duplicate an ldb_val structure
1469 
1470    This function copies an ldb value structure. 
1471 
1472    \param mem_ctx the memory context that the duplicated value will be
1473    allocated from
1474    \param v the ldb_val to be duplicated.
1475 
1476    \return the duplicated ldb_val structure.
1477 */
1478 struct ldb_val ldb_val_dup(void *mem_ctx, const struct ldb_val *v);
1479 
1480 /**
1481   this allows the user to set a debug function for error reporting
1482 */
1483 int ldb_set_debug(struct ldb_context *ldb,
1484                   void (*debug)(void *context, enum ldb_debug_level level, 
1485                                 const char *fmt, va_list ap) PRINTF_ATTRIBUTE(3,0),
1486                   void *context);
1487 
1488 /**
1489   this allows the user to set custom utf8 function for error reporting
1490 */
1491 void ldb_set_utf8_fns(struct ldb_context *ldb,
1492                         void *context,
1493                         char *(*casefold)(void *, void *, const char *));
1494 
1495 /**
1496    this sets up debug to print messages on stderr
1497 */
1498 int ldb_set_debug_stderr(struct ldb_context *ldb);
1499 
1500 /* control backend specific opaque values */
1501 int ldb_set_opaque(struct ldb_context *ldb, const char *name, void *value);
1502 void *ldb_get_opaque(struct ldb_context *ldb, const char *name);
1503 
1504 const struct ldb_attrib_handler *ldb_attrib_handler(struct ldb_context *ldb,
1505                                                     const char *attrib);
1506 
1507 
1508 const char **ldb_attr_list_copy(void *mem_ctx, const char * const *attrs);
1509 const char **ldb_attr_list_copy_add(void *mem_ctx, const char * const *attrs, const char *new_attr);
1510 int ldb_attr_in_list(const char * const *attrs, const char *attr);
1511 
1512 
1513 void ldb_parse_tree_attr_replace(struct ldb_parse_tree *tree, 
1514                                  const char *attr, 
1515                                  const char *replace);
1516 
1517 int ldb_msg_rename_attr(struct ldb_message *msg, const char *attr, const char *replace);
1518 int ldb_msg_copy_attr(struct ldb_message *msg, const char *attr, const char *replace);
1519 void ldb_msg_remove_attr(struct ldb_message *msg, const char *attr);
1520 
1521 /**
1522    Convert a time structure to a string
1523 
1524    This function converts a time_t structure to an LDAP formatted time
1525    string.
1526 
1527    \param mem_ctx the memory context to allocate the return string in
1528    \param t the time structure to convert
1529 
1530    \return the formatted string, or NULL if the time structure could
1531    not be converted
1532 */
1533 char *ldb_timestring(void *mem_ctx, time_t t);
1534 
1535 /**
1536    Convert a string to a time structure
1537 
1538    This function converts an LDAP formatted time string to a time_t
1539    structure.
1540 
1541    \param s the string to convert
1542 
1543    \return the time structure, or 0 if the string cannot be converted
1544 */
1545 time_t ldb_string_to_time(const char *s);
1546 
1547 
1548 void ldb_qsort (void *const pbase, size_t total_elems, size_t size, void *opaque, ldb_qsort_cmp_fn_t cmp);
1549 #endif

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