git.sur5r.net Git - openldap/blob - servers/slapd/entry.c

   1 /* entry.c - routines for dealing with entries */
   2 /* $OpenLDAP$ */
   3 /*
   4  * Copyright 1998-2003 The OpenLDAP Foundation, All Rights Reserved.
   5  * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
   6  */
   7
   8 #include "portable.h"
   9
  10 #include <stdio.h>
  11
  12 #include <ac/ctype.h>
  13 #include <ac/errno.h>
  14 #include <ac/socket.h>
  15 #include <ac/string.h>
  16
  17 #include "slap.h"
  18 #include "ldif.h"
  19
  20 static unsigned char    *ebuf;  /* buf returned by entry2str             */
  21 static unsigned char    *ecur;  /* pointer to end of currently used ebuf */
  22 static int              emaxsize;/* max size of ebuf                     */
  23
  24 /*
  25  * Empty root entry
  26  */
  27 const Entry slap_entry_root = {
  28         NOID, { 0, "" }, { 0, "" }, NULL, 0, { 0, "" }, NULL
  29 };
  30
  31 int entry_destroy(void)
  32 {
  33         if ( ebuf ) free( ebuf );
  34         ebuf = NULL;
  35         ecur = NULL;
  36         emaxsize = 0;
  37         return 0;
  38 }
  39
  40
  41 Entry *
  42 str2entry( char *s )
  43 {
  44         int rc;
  45         Entry           *e;
  46         char            *type;
  47         struct berval   vals[2];
  48         struct berval   nvals[2], *nvalsp;
  49         AttributeDescription *ad;
  50         const char *text;
  51         char    *next;
  52
  53         /*
  54          * LDIF is used as the string format.
  55          * An entry looks like this:
  56          *
  57          *      dn: <dn>\n
  58          *      [<attr>:[:] <value>\n]
  59          *      [<tab><continuedvalue>\n]*
  60          *      ...
  61          *
  62          * If a double colon is used after a type, it means the
  63          * following value is encoded as a base 64 string.  This
  64          * happens if the value contains a non-printing character
  65          * or newline.
  66          */
  67
  68 #ifdef NEW_LOGGING
  69         LDAP_LOG( OPERATION, DETAIL1, "str2entry: \"%s\"\n",
  70                 s ? s : "NULL", 0, 0 );
  71 #else
  72         Debug( LDAP_DEBUG_TRACE, "=> str2entry: \"%s\"\n",
  73                 s ? s : "NULL", 0, 0 );
  74 #endif
  75
  76         /* initialize reader/writer lock */
  77         e = (Entry *) ch_calloc( 1, sizeof(Entry) );
  78
  79         if( e == NULL ) {
  80 #ifdef NEW_LOGGING
  81                 LDAP_LOG( OPERATION, ERR, "str2entry: entry allocation failed.\n", 0, 0, 0 );
  82 #else
  83                 Debug( LDAP_DEBUG_ANY,
  84                     "<= str2entry NULL (entry allocation failed)\n",
  85                     0, 0, 0 );
  86 #endif
  87                 return( NULL );
  88         }
  89
  90         /* initialize entry */
  91         e->e_id = NOID;
  92
  93         /* dn + attributes */
  94         vals[1].bv_len = 0;
  95         vals[1].bv_val = NULL;
  96
  97         next = s;
  98         while ( (s = ldif_getline( &next )) != NULL ) {
  99                 if ( *s == '\n' || *s == '\0' ) {
 100                         break;
 101                 }
 102
 103                 if ( ldif_parse_line( s, &type, &vals[0].bv_val, &vals[0].bv_len ) != 0 ) {
 104 #ifdef NEW_LOGGING
 105                         LDAP_LOG( OPERATION, DETAIL1, "str2entry:  NULL (parse_line)\n",0, 0, 0 );
 106 #else
 107                         Debug( LDAP_DEBUG_TRACE,
 108                             "<= str2entry NULL (parse_line)\n", 0, 0, 0 );
 109 #endif
 110                         continue;
 111                 }
 112
 113                 if ( strcasecmp( type, "dn" ) == 0 ) {
 114                         free( type );
 115
 116                         if ( e->e_dn != NULL ) {
 117 #ifdef NEW_LOGGING
 118                                 LDAP_LOG( OPERATION, DETAIL1, "str2entry: "
 119                                         "entry %ld has multiple DNs \"%s\" and \"%s\"\n",
 120                                         (long) e->e_id, e->e_dn, vals[0].bv_val );
 121 #else
 122                                 Debug( LDAP_DEBUG_ANY, "str2entry: "
 123                                         "entry %ld has multiple DNs \"%s\" and \"%s\"\n",
 124                                     (long) e->e_id, e->e_dn, vals[0].bv_val );
 125 #endif
 126                                 free( vals[0].bv_val );
 127                                 entry_free( e );
 128                                 return NULL;
 129                         }
 130
 131                         rc = dnPrettyNormal( NULL, &vals[0], &e->e_name, &e->e_nname, NULL );
 132                         if( rc != LDAP_SUCCESS ) {
 133 #ifdef NEW_LOGGING
 134                                 LDAP_LOG( OPERATION, DETAIL1,
 135                                         "str2entry: entry %ld has invalid DN \"%s\"\n",
 136                                         (long) e->e_id, vals[0].bv_val, 0 );
 137 #else
 138                                 Debug( LDAP_DEBUG_ANY, "str2entry: "
 139                                         "entry %ld has invalid DN \"%s\"\n",
 140                                         (long) e->e_id, vals[0].bv_val, 0 );
 141 #endif
 142                                 entry_free( e );
 143                                 free( vals[0].bv_val );
 144                                 return NULL;
 145                         }
 146                         free( vals[0].bv_val );
 147                         continue;
 148                 }
 149
 150                 ad = NULL;
 151                 rc = slap_str2ad( type, &ad, &text );
 152
 153                 if( rc != LDAP_SUCCESS ) {
 154 #ifdef NEW_LOGGING
 155                         LDAP_LOG( OPERATION, DETAIL1,
 156                                 "str2entry:  str2ad(%s): %s\n", type, text, 0 );
 157 #else
 158                         Debug( slapMode & SLAP_TOOL_MODE
 159                                 ? LDAP_DEBUG_ANY : LDAP_DEBUG_TRACE,
 160                                 "<= str2entry: str2ad(%s): %s\n", type, text, 0 );
 161 #endif
 162                         if( slapMode & SLAP_TOOL_MODE ) {
 163                                 entry_free( e );
 164                                 free( vals[0].bv_val );
 165                                 free( type );
 166                                 return NULL;
 167                         }
 168
 169                         rc = slap_str2undef_ad( type, &ad, &text );
 170                         if( rc != LDAP_SUCCESS ) {
 171 #ifdef NEW_LOGGING
 172                                 LDAP_LOG( OPERATION, DETAIL1,
 173                                         "str2entry: str2undef_ad(%s): %s\n", type, text, 0 );
 174 #else
 175                                 Debug( LDAP_DEBUG_ANY,
 176                                         "<= str2entry: str2undef_ad(%s): %s\n",
 177                                                 type, text, 0 );
 178 #endif
 179                                 entry_free( e );
 180                                 free( vals[0].bv_val );
 181                                 free( type );
 182                                 return NULL;
 183                         }
 184                 }
 185
 186                 if( slapMode & SLAP_TOOL_MODE ) {
 187                         struct berval pval;
 188                         slap_syntax_validate_func *validate =
 189                                 ad->ad_type->sat_syntax->ssyn_validate;
 190                         slap_syntax_transform_func *pretty =
 191                                 ad->ad_type->sat_syntax->ssyn_pretty;
 192
 193                         if( pretty ) {
 194                                 rc = pretty( ad->ad_type->sat_syntax,
 195                                         &vals[0], &pval, NULL );
 196
 197                         } else if( validate ) {
 198                                 /*
 199                                  * validate value per syntax
 200                                  */
 201                                 rc = validate( ad->ad_type->sat_syntax, &vals[0] );
 202
 203                         } else {
 204 #ifdef NEW_LOGGING
 205                                 LDAP_LOG( OPERATION, INFO,
 206                                         "str2entry: no validator for syntax %s\n",
 207                                         ad->ad_type->sat_syntax->ssyn_oid, 0, 0 );
 208 #else
 209                                 Debug( LDAP_DEBUG_ANY,
 210                                         "str2entry: no validator for syntax %s\n",
 211                                         ad->ad_type->sat_syntax->ssyn_oid, 0, 0 );
 212 #endif
 213                                 entry_free( e );
 214                                 free( vals[0].bv_val );
 215                                 free( type );
 216                                 return NULL;
 217                         }
 218
 219                         if( rc != 0 ) {
 220 #ifdef NEW_LOGGING
 221                                 LDAP_LOG( OPERATION, ERR,
 222                                         "str2entry:  invalid value for attribute %s (syntax %s)\n",
 223                                         ad->ad_cname.bv_val, ad->ad_type->sat_syntax->ssyn_oid, 0 );
 224 #else
 225                                 Debug( LDAP_DEBUG_ANY,
 226                                         "str2entry: invalid value for attribute %s (syntax %s)\n",
 227                                         ad->ad_cname.bv_val, ad->ad_type->sat_syntax->ssyn_oid, 0 );
 228 #endif
 229                                 entry_free( e );
 230                                 free( vals[0].bv_val );
 231                                 free( type );
 232                                 return NULL;
 233                         }
 234
 235                         if( pretty ) {
 236                                 free( vals[0].bv_val );
 237                                 vals[0] = pval;
 238                         }
 239                 }
 240
 241                 nvalsp = NULL;
 242                 nvals[0].bv_val = NULL;
 243
 244                 if( ad->ad_type->sat_equality &&
 245                         ad->ad_type->sat_equality->smr_normalize )
 246                 {
 247                         rc = ad->ad_type->sat_equality->smr_normalize(
 248                                 SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
 249                                 ad->ad_type->sat_syntax,
 250                                 ad->ad_type->sat_equality,
 251                                 &vals[0], &nvals[0], NULL );
 252
 253                         if( rc ) {
 254 #ifdef NEW_LOGGING
 255                                 LDAP_LOG( OPERATION, DETAIL1,
 256                                         "str2entry:  NULL (smr_normalize %d)\n" , rc, 0, 0 );
 257 #else
 258                                 Debug( LDAP_DEBUG_ANY,
 259                                         "<= str2entry NULL (smr_normalize %d)\n", rc, 0, 0 );
 260 #endif
 261
 262                                 entry_free( e );
 263                                 free( vals[0].bv_val );
 264                                 free( type );
 265                                 return NULL;
 266                         }
 267
 268                         nvals[1].bv_len = 0;
 269                         nvals[1].bv_val = NULL;
 270
 271                         nvalsp = &nvals[0];
 272                 }
 273
 274                 rc = attr_merge( e, ad, vals, nvalsp );
 275                 if( rc != 0 ) {
 276 #ifdef NEW_LOGGING
 277                         LDAP_LOG( OPERATION, DETAIL1,
 278                                 "str2entry:  NULL (attr_merge)\n" , 0, 0, 0 );
 279 #else
 280                         Debug( LDAP_DEBUG_ANY,
 281                             "<= str2entry NULL (attr_merge)\n", 0, 0, 0 );
 282 #endif
 283                         entry_free( e );
 284                         free( vals[0].bv_val );
 285                         free( type );
 286                         return( NULL );
 287                 }
 288
 289                 free( type );
 290                 free( vals[0].bv_val );
 291                 free( nvals[0].bv_val );
 292         }
 293
 294         /* check to make sure there was a dn: line */
 295         if ( e->e_dn == NULL ) {
 296 #ifdef NEW_LOGGING
 297                 LDAP_LOG( OPERATION, INFO,
 298                         "str2entry:  entry %ld has no dn.\n", (long) e->e_id, 0, 0 );
 299 #else
 300                 Debug( LDAP_DEBUG_ANY, "str2entry: entry %ld has no dn\n",
 301                     (long) e->e_id, 0, 0 );
 302 #endif
 303                 entry_free( e );
 304                 return NULL;
 305         }
 306
 307 #ifdef NEW_LOGGING
 308         LDAP_LOG( OPERATION, DETAIL2,
 309                 "str2entry(%s) -> 0x%lx\n", e->e_dn, (unsigned long)e, 0 );
 310 #else
 311         Debug(LDAP_DEBUG_TRACE, "<= str2entry(%s) -> 0x%lx\n",
 312                 e->e_dn, (unsigned long) e, 0 );
 313 #endif
 314         return( e );
 315 }
 316
 317
 318 #define GRABSIZE        BUFSIZ
 319
 320 #define MAKE_SPACE( n ) { \
 321                 while ( ecur + (n) > ebuf + emaxsize ) { \
 322                         ptrdiff_t       offset; \
 323                         offset = (int) (ecur - ebuf); \
 324                         ebuf = (unsigned char *) ch_realloc( (char *) ebuf, \
 325                             emaxsize + GRABSIZE ); \
 326                         emaxsize += GRABSIZE; \
 327                         ecur = ebuf + offset; \
 328                 } \
 329         }
 330
 331 char *
 332 entry2str(
 333     Entry       *e,
 334     int         *len )
 335 {
 336         Attribute       *a;
 337         struct berval   *bv;
 338         int             i;
 339         ber_len_t tmplen;
 340
 341         assert( e != NULL );
 342
 343         /*
 344          * In string format, an entry looks like this:
 345          *      dn: <dn>\n
 346          *      [<attr>: <value>\n]*
 347          */
 348
 349         ecur = ebuf;
 350
 351         /* put the dn */
 352         if ( e->e_dn != NULL ) {
 353                 /* put "dn: <dn>" */
 354                 tmplen = e->e_name.bv_len;
 355                 MAKE_SPACE( LDIF_SIZE_NEEDED( 2, tmplen ));
 356                 ldif_sput( (char **) &ecur, LDIF_PUT_VALUE, "dn", e->e_dn, tmplen );
 357         }
 358
 359         /* put the attributes */
 360         for ( a = e->e_attrs; a != NULL; a = a->a_next ) {
 361                 /* put "<type>:[:] <value>" line for each value */
 362                 for ( i = 0; a->a_vals[i].bv_val != NULL; i++ ) {
 363                         bv = &a->a_vals[i];
 364                         tmplen = a->a_desc->ad_cname.bv_len;
 365                         MAKE_SPACE( LDIF_SIZE_NEEDED( tmplen, bv->bv_len ));
 366                         ldif_sput( (char **) &ecur, LDIF_PUT_VALUE,
 367                                 a->a_desc->ad_cname.bv_val,
 368                             bv->bv_val, bv->bv_len );
 369                 }
 370         }
 371         MAKE_SPACE( 1 );
 372         *ecur = '\0';
 373         *len = ecur - ebuf;
 374
 375         return( (char *) ebuf );
 376 }
 377
 378 void
 379 entry_free( Entry *e )
 380 {
 381         /* free an entry structure */
 382         assert( e != NULL );
 383
 384         /* e_private must be freed by the caller */
 385         assert( e->e_private == NULL );
 386         e->e_private = NULL;
 387
 388         /* free DNs */
 389         if ( e->e_dn != NULL ) {
 390                 free( e->e_dn );
 391                 e->e_dn = NULL;
 392         }
 393         if ( e->e_ndn != NULL ) {
 394                 free( e->e_ndn );
 395                 e->e_ndn = NULL;
 396         }
 397
 398         if ( e->e_bv.bv_val != NULL ) {
 399                 free( e->e_bv.bv_val );
 400                 e->e_bv.bv_val = NULL;
 401         }
 402
 403         /* free attributes */
 404         attrs_free( e->e_attrs );
 405         e->e_attrs = NULL;
 406
 407         free( e );
 408 }
 409
 410 /*
 411  * These routines are used only by Backend.
 412  *
 413  * the Entry has three entry points (ways to find things):
 414  *
 415  *      by entry        e.g., if you already have an entry from the cache
 416  *                      and want to delete it. (really by entry ptr)
 417  *      by dn           e.g., when looking for the base object of a search
 418  *      by id           e.g., for search candidates
 419  *
 420  * these correspond to three different avl trees that are maintained.
 421  */
 422
 423 int
 424 entry_cmp( Entry *e1, Entry *e2 )
 425 {
 426         return SLAP_PTRCMP( e1, e2 );
 427 }
 428
 429 int
 430 entry_dn_cmp( const void *v_e1, const void *v_e2 )
 431 {
 432         /* compare their normalized UPPERCASED dn's */
 433         const Entry *e1 = v_e1, *e2 = v_e2;
 434
 435         return ber_bvcmp( &e1->e_nname, &e2->e_nname );
 436 }
 437
 438 int
 439 entry_id_cmp( const void *v_e1, const void *v_e2 )
 440 {
 441         const Entry *e1 = v_e1, *e2 = v_e2;
 442         return( e1->e_id < e2->e_id ? -1 : (e1->e_id > e2->e_id ? 1 : 0) );
 443 }
 444
 445 #define entry_lenlen(l) ((l) < 0x80) ? 1 : ((l) < 0x100) ? 2 : \
 446         ((l) < 0x10000) ? 3 : ((l) < 0x1000000) ? 4 : 5
 447 #if 0
 448 /* This is like a ber_len */
 449 static ber_len_t
 450 entry_lenlen(ber_len_t len)
 451 {
 452         if (len <= 0x7f)
 453                 return 1;
 454         if (len <= 0xff)
 455                 return 2;
 456         if (len <= 0xffff)
 457                 return 3;
 458         if (len <= 0xffffff)
 459                 return 4;
 460         return 5;
 461 }
 462 #endif
 463
 464 static void
 465 entry_putlen(unsigned char **buf, ber_len_t len)
 466 {
 467         ber_len_t lenlen = entry_lenlen(len);
 468
 469         if (lenlen == 1) {
 470                 **buf = (unsigned char) len;
 471         } else {
 472                 int i;
 473                 **buf = 0x80 | ((unsigned char) lenlen - 1);
 474                 for (i=lenlen-1; i>0; i--) {
 475                         (*buf)[i] = (unsigned char) len;
 476                         len >>= 8;
 477                 }
 478         }
 479         *buf += lenlen;
 480 }
 481
 482 static ber_len_t
 483 entry_getlen(unsigned char **buf)
 484 {
 485         ber_len_t len;
 486         int i;
 487
 488         len = *(*buf)++;
 489         if (len <= 0x7f)
 490                 return len;
 491         i = len & 0x7f;
 492         len = 0;
 493         for (;i > 0; i--) {
 494                 len <<= 8;
 495                 len |= *(*buf)++;
 496         }
 497         return len;
 498 }
 499
 500 /* Add up the size of the entry for a flattened buffer */
 501 void entry_flatsize(Entry *e, ber_len_t *psiz, ber_len_t *plen, int norm)
 502 {
 503         ber_len_t siz = sizeof(Entry);
 504         ber_len_t len, dnlen, ndnlen;
 505         int i;
 506         Attribute *a;
 507
 508         dnlen = e->e_name.bv_len;
 509         len = dnlen + 1;        /* trailing NUL byte */
 510         len += entry_lenlen(dnlen);
 511         if (norm) {
 512                 ndnlen = e->e_nname.bv_len;
 513                 len += ndnlen + 1;
 514                 len += entry_lenlen(ndnlen);
 515         }
 516         for (a=e->e_attrs; a; a=a->a_next) {
 517                 /* For AttributeDesc, we only store the attr name */
 518                 siz += sizeof(Attribute);
 519                 len += a->a_desc->ad_cname.bv_len+1;
 520                 len += entry_lenlen(a->a_desc->ad_cname.bv_len);
 521                 for (i=0; a->a_vals[i].bv_val; i++) {
 522                         siz += sizeof(struct berval);
 523                         len += a->a_vals[i].bv_len + 1;
 524                         len += entry_lenlen(a->a_vals[i].bv_len);
 525                 }
 526                 len += entry_lenlen(i);
 527                 siz += sizeof(struct berval);   /* empty berval at end */
 528                 if (norm && a->a_nvals != a->a_vals) {
 529                         for (i=0; a->a_nvals[i].bv_val; i++) {
 530                                 siz += sizeof(struct berval);
 531                                 len += a->a_nvals[i].bv_len + 1;
 532                                 len += entry_lenlen(a->a_nvals[i].bv_len);
 533                         }
 534                         len += entry_lenlen(i); /* i nvals */
 535                         siz += sizeof(struct berval);
 536                 } else {
 537                         len += entry_lenlen(0); /* 0 nvals */
 538                 }
 539         }
 540         len += 1;       /* NUL byte at end */
 541         len += entry_lenlen(siz);
 542         *psiz = siz;
 543         *plen = len;
 544 }
 545
 546 /* Flatten an Entry into a buffer. The buffer is filled with just the
 547  * strings/bervals of all the entry components. Each field is preceded
 548  * by its length, encoded the way ber_put_len works. Every field is NUL
 549  * terminated.  The entire buffer size is precomputed so that a single
 550  * malloc can be performed. The entry size is also recorded,
 551  * to aid in entry_decode.
 552  */
 553 int entry_encode(Entry *e, struct berval *bv)
 554 {
 555         ber_len_t siz = sizeof(Entry);
 556         ber_len_t len, dnlen, ndnlen;
 557         int i;
 558         Attribute *a;
 559         unsigned char *ptr;
 560
 561 #ifdef NEW_LOGGING
 562         LDAP_LOG( OPERATION, DETAIL1, "entry_encode: id: 0x%08lx  \"%s\"\n",
 563                 (long) e->e_id, e->e_dn, 0 );
 564 #else
 565         Debug( LDAP_DEBUG_TRACE, "=> entry_encode(0x%08lx): %s\n",
 566                 (long) e->e_id, e->e_dn, 0 );
 567 #endif
 568         dnlen = e->e_name.bv_len;
 569         ndnlen = e->e_nname.bv_len;
 570
 571         entry_flatsize( e, &siz, &len, 1 );
 572
 573         bv->bv_len = len;
 574         bv->bv_val = ch_malloc(len);
 575         ptr = (unsigned char *)bv->bv_val;
 576         entry_putlen(&ptr, siz);
 577         entry_putlen(&ptr, dnlen);
 578         AC_MEMCPY(ptr, e->e_dn, dnlen);
 579         ptr += dnlen;
 580         *ptr++ = '\0';
 581         entry_putlen(&ptr, ndnlen);
 582         AC_MEMCPY(ptr, e->e_ndn, ndnlen);
 583         ptr += ndnlen;
 584         *ptr++ = '\0';
 585
 586         for (a=e->e_attrs; a; a=a->a_next) {
 587                 entry_putlen(&ptr, a->a_desc->ad_cname.bv_len);
 588                 AC_MEMCPY(ptr, a->a_desc->ad_cname.bv_val,
 589                         a->a_desc->ad_cname.bv_len);
 590                 ptr += a->a_desc->ad_cname.bv_len;
 591                 *ptr++ = '\0';
 592                 if (a->a_vals) {
 593                     for (i=0; a->a_vals[i].bv_val; i++);
 594                     entry_putlen(&ptr, i);
 595                     for (i=0; a->a_vals[i].bv_val; i++) {
 596                         entry_putlen(&ptr, a->a_vals[i].bv_len);
 597                         AC_MEMCPY(ptr, a->a_vals[i].bv_val,
 598                                 a->a_vals[i].bv_len);
 599                         ptr += a->a_vals[i].bv_len;
 600                         *ptr++ = '\0';
 601                     }
 602                     if (a->a_nvals != a->a_vals) {
 603                         entry_putlen(&ptr, i);
 604                         for (i=0; a->a_nvals[i].bv_val; i++) {
 605                             entry_putlen(&ptr, a->a_nvals[i].bv_len);
 606                             AC_MEMCPY(ptr, a->a_nvals[i].bv_val,
 607                                 a->a_nvals[i].bv_len);
 608                             ptr += a->a_nvals[i].bv_len;
 609                             *ptr++ = '\0';
 610                         }
 611                     } else {
 612                         entry_putlen(&ptr, 0);
 613                     }
 614                 }
 615         }
 616         *ptr = '\0';
 617         return 0;
 618 }
 619
 620 /* Retrieve an Entry that was stored using entry_encode above.
 621  * We malloc a single block with the size stored above for the Entry
 622  * and all of its Attributes. We also must lookup the stored
 623  * attribute names to get AttributeDescriptions. To detect if the
 624  * attributes of an Entry are later modified, we note that e->e_attr
 625  * is always a constant offset from (e).
 626  *
 627  * Note: everything is stored in a single contiguous block, so
 628  * you can not free individual attributes or names from this
 629  * structure. Attempting to do so will likely corrupt memory.
 630  */
 631 int entry_decode(struct berval *bv, Entry **e)
 632 {
 633         int i, j, count;
 634         int rc;
 635         Attribute *a;
 636         Entry *x;
 637         const char *text;
 638         AttributeDescription *ad;
 639         unsigned char *ptr = (unsigned char *)bv->bv_val;
 640         BerVarray bptr;
 641
 642         i = entry_getlen(&ptr);
 643         x = ch_calloc(1, i);
 644         i = entry_getlen(&ptr);
 645         x->e_name.bv_val = (char *) ptr;
 646         x->e_name.bv_len = i;
 647         ptr += i+1;
 648         i = entry_getlen(&ptr);
 649         x->e_nname.bv_val = (char *) ptr;
 650         x->e_nname.bv_len = i;
 651         ptr += i+1;
 652 #ifdef NEW_LOGGING
 653         LDAP_LOG( OPERATION, DETAIL2, "entry_decode: \"%s\"\n", x->e_dn, 0, 0 );
 654 #else
 655         Debug( LDAP_DEBUG_TRACE,
 656             "entry_decode: \"%s\"\n",
 657             x->e_dn, 0, 0 );
 658 #endif
 659         x->e_bv = *bv;
 660
 661         /* A valid entry must have at least one attr, so this
 662          * pointer can never be NULL
 663          */
 664         x->e_attrs = (Attribute *)(x+1);
 665         bptr = (BerVarray)x->e_attrs;
 666         a = NULL;
 667
 668         while ((i = entry_getlen(&ptr))) {
 669                 struct berval bv;
 670                 bv.bv_len = i;
 671                 bv.bv_val = (char *) ptr;
 672                 if (a) {
 673                         a->a_next = (Attribute *)bptr;
 674                 }
 675                 a = (Attribute *)bptr;
 676                 ad = NULL;
 677                 rc = slap_bv2ad( &bv, &ad, &text );
 678
 679                 if( rc != LDAP_SUCCESS ) {
 680 #ifdef NEW_LOGGING
 681                         LDAP_LOG( OPERATION, INFO,
 682                                 "entry_decode: str2ad(%s): %s\n", ptr, text, 0 );
 683 #else
 684                         Debug( LDAP_DEBUG_TRACE,
 685                                 "<= entry_decode: str2ad(%s): %s\n", ptr, text, 0 );
 686 #endif
 687                         rc = slap_bv2undef_ad( &bv, &ad, &text );
 688
 689                         if( rc != LDAP_SUCCESS ) {
 690 #ifdef NEW_LOGGING
 691                                 LDAP_LOG( OPERATION, INFO,
 692                                         "entry_decode:  str2undef_ad(%s): %s\n", ptr, text, 0 );
 693 #else
 694                                 Debug( LDAP_DEBUG_ANY,
 695                                         "<= entry_decode: str2undef_ad(%s): %s\n",
 696                                                 ptr, text, 0 );
 697 #endif
 698                                 return rc;
 699                         }
 700                 }
 701                 ptr += i + 1;
 702                 a->a_desc = ad;
 703                 bptr = (BerVarray)(a+1);
 704                 a->a_vals = bptr;
 705                 a->a_flags = 0;
 706                 count = j = entry_getlen(&ptr);
 707
 708                 while (j) {
 709                         i = entry_getlen(&ptr);
 710                         bptr->bv_len = i;
 711                         bptr->bv_val = (char *)ptr;
 712                         ptr += i+1;
 713                         bptr++;
 714                         j--;
 715                 }
 716                 bptr->bv_val = NULL;
 717                 bptr->bv_len = 0;
 718                 bptr++;
 719
 720                 j = entry_getlen(&ptr);
 721                 if (j) {
 722                         a->a_nvals = bptr;
 723                         while (j) {
 724                                 i = entry_getlen(&ptr);
 725                                 bptr->bv_len = i;
 726                                 bptr->bv_val = (char *)ptr;
 727                                 ptr += i+1;
 728                                 bptr++;
 729                                 j--;
 730                         }
 731                         bptr->bv_val = NULL;
 732                         bptr->bv_len = 0;
 733                         bptr++;
 734                 } else {
 735                         a->a_nvals = a->a_vals;
 736                 }
 737         }
 738
 739         if (a) a->a_next = NULL;
 740 #ifdef NEW_LOGGING
 741         LDAP_LOG( OPERATION, DETAIL1, "entry_decode:  %s\n", x->e_dn, 0, 0 );
 742 #else
 743         Debug(LDAP_DEBUG_TRACE, "<= entry_decode(%s)\n",
 744                 x->e_dn, 0, 0 );
 745 #endif
 746         *e = x;
 747         return 0;
 748 }
 749
 750 Entry *entry_dup( Entry *e )
 751 {
 752         Entry *ret;
 753
 754         ret = (Entry *)ch_calloc( 1, sizeof(*ret) );
 755
 756         ret->e_id = e->e_id;
 757         ber_dupbv( &ret->e_name, &e->e_name );
 758         ber_dupbv( &ret->e_nname, &e->e_nname );
 759         ret->e_attrs = attrs_dup( e->e_attrs );
 760         ret->e_ocflags = e->e_ocflags;
 761         ret->e_bv.bv_val = NULL;
 762         ret->e_bv.bv_len = 0;
 763         ret->e_private = NULL;
 764
 765         return ret;
 766 }
 767