git.sur5r.net Git - openldap/blob - libraries/libldap/init.c

   1 /* $OpenLDAP$ */
   2 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   3  *
   4  * Copyright 1998-2011 The OpenLDAP Foundation.
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted only as authorized by the OpenLDAP
   9  * Public License.
  10  *
  11  * A copy of this license is available in the file LICENSE in the
  12  * top-level directory of the distribution or, alternatively, at
  13  * <http://www.OpenLDAP.org/license.html>.
  14  */
  15
  16 #include "portable.h"
  17
  18 #include <stdio.h>
  19 #include <ac/stdlib.h>
  20
  21 #ifdef HAVE_GETEUID
  22 #include <ac/unistd.h>
  23 #endif
  24
  25 #include <ac/socket.h>
  26 #include <ac/string.h>
  27 #include <ac/ctype.h>
  28 #include <ac/time.h>
  29
  30 #ifdef HAVE_LIMITS_H
  31 #include <limits.h>
  32 #endif
  33
  34 #include "ldap-int.h"
  35 #include "ldap_defaults.h"
  36 #include "lutil.h"
  37
  38 struct ldapoptions ldap_int_global_options =
  39         { LDAP_UNINITIALIZED, LDAP_DEBUG_NONE LDAP_LDO_MUTEX_NULLARG };
  40
  41 #define ATTR_NONE       0
  42 #define ATTR_BOOL       1
  43 #define ATTR_INT        2
  44 #define ATTR_KV         3
  45 #define ATTR_STRING     4
  46 #define ATTR_OPTION     5
  47
  48 #define ATTR_SASL       6
  49 #define ATTR_TLS        7
  50
  51 #define ATTR_OPT_TV     8
  52 #define ATTR_OPT_INT    9
  53
  54 #define ATTR_GSSAPI     10
  55
  56 struct ol_keyvalue {
  57         const char *            key;
  58         int                     value;
  59 };
  60
  61 static const struct ol_keyvalue deref_kv[] = {
  62         {"never", LDAP_DEREF_NEVER},
  63         {"searching", LDAP_DEREF_SEARCHING},
  64         {"finding", LDAP_DEREF_FINDING},
  65         {"always", LDAP_DEREF_ALWAYS},
  66         {NULL, 0}
  67 };
  68
  69 static const struct ol_attribute {
  70         int                     useronly;
  71         int                     type;
  72         const char *    name;
  73         const void *    data;
  74         size_t          offset;
  75 } attrs[] = {
  76         {0, ATTR_OPT_TV,        "TIMEOUT",              NULL,   LDAP_OPT_TIMEOUT},
  77         {0, ATTR_OPT_TV,        "NETWORK_TIMEOUT",      NULL,   LDAP_OPT_NETWORK_TIMEOUT},
  78         {0, ATTR_OPT_INT,       "VERSION",              NULL,   LDAP_OPT_PROTOCOL_VERSION},
  79         {0, ATTR_KV,            "DEREF",        deref_kv, /* or &deref_kv[0] */
  80                 offsetof(struct ldapoptions, ldo_deref)},
  81         {0, ATTR_INT,           "SIZELIMIT",    NULL,
  82                 offsetof(struct ldapoptions, ldo_sizelimit)},
  83         {0, ATTR_INT,           "TIMELIMIT",    NULL,
  84                 offsetof(struct ldapoptions, ldo_timelimit)},
  85         {1, ATTR_STRING,        "BINDDN",               NULL,
  86                 offsetof(struct ldapoptions, ldo_defbinddn)},
  87         {0, ATTR_STRING,        "BASE",                 NULL,
  88                 offsetof(struct ldapoptions, ldo_defbase)},
  89         {0, ATTR_INT,           "PORT",                 NULL,           /* deprecated */
  90                 offsetof(struct ldapoptions, ldo_defport)},
  91         {0, ATTR_OPTION,        "HOST",                 NULL,   LDAP_OPT_HOST_NAME}, /* deprecated */
  92         {0, ATTR_OPTION,        "URI",                  NULL,   LDAP_OPT_URI}, /* replaces HOST/PORT */
  93         {0, ATTR_BOOL,          "REFERRALS",    NULL,   LDAP_BOOL_REFERRALS},
  94 #if 0
  95         /* This should only be allowed via ldap_set_option(3) */
  96         {0, ATTR_BOOL,          "RESTART",              NULL,   LDAP_BOOL_RESTART},
  97 #endif
  98
  99 #ifdef HAVE_CYRUS_SASL
 100         {0, ATTR_STRING,        "SASL_MECH",            NULL,
 101                 offsetof(struct ldapoptions, ldo_def_sasl_mech)},
 102         {0, ATTR_STRING,        "SASL_REALM",           NULL,
 103                 offsetof(struct ldapoptions, ldo_def_sasl_realm)},
 104         {1, ATTR_STRING,        "SASL_AUTHCID",         NULL,
 105                 offsetof(struct ldapoptions, ldo_def_sasl_authcid)},
 106         {1, ATTR_STRING,        "SASL_AUTHZID",         NULL,
 107                 offsetof(struct ldapoptions, ldo_def_sasl_authzid)},
 108         {0, ATTR_SASL,          "SASL_SECPROPS",        NULL,   LDAP_OPT_X_SASL_SECPROPS},
 109         {0, ATTR_BOOL,          "SASL_NOCANON", NULL,   LDAP_BOOL_SASL_NOCANON},
 110 #endif
 111
 112 #ifdef HAVE_GSSAPI
 113         {0, ATTR_GSSAPI,"GSSAPI_SIGN",                  NULL,   LDAP_OPT_SIGN},
 114         {0, ATTR_GSSAPI,"GSSAPI_ENCRYPT",               NULL,   LDAP_OPT_ENCRYPT},
 115         {0, ATTR_GSSAPI,"GSSAPI_ALLOW_REMOTE_PRINCIPAL",NULL,   LDAP_OPT_X_GSSAPI_ALLOW_REMOTE_PRINCIPAL},
 116 #endif
 117
 118 #ifdef HAVE_TLS
 119         {1, ATTR_TLS,   "TLS_CERT",                     NULL,   LDAP_OPT_X_TLS_CERTFILE},
 120         {1, ATTR_TLS,   "TLS_KEY",                      NULL,   LDAP_OPT_X_TLS_KEYFILE},
 121         {0, ATTR_TLS,   "TLS_CACERT",           NULL,   LDAP_OPT_X_TLS_CACERTFILE},
 122         {0, ATTR_TLS,   "TLS_CACERTDIR",        NULL,   LDAP_OPT_X_TLS_CACERTDIR},
 123         {0, ATTR_TLS,   "TLS_REQCERT",          NULL,   LDAP_OPT_X_TLS_REQUIRE_CERT},
 124         {0, ATTR_TLS,   "TLS_RANDFILE",         NULL,   LDAP_OPT_X_TLS_RANDOM_FILE},
 125         {0, ATTR_TLS,   "TLS_CIPHER_SUITE",     NULL,   LDAP_OPT_X_TLS_CIPHER_SUITE},
 126         {0, ATTR_TLS,   "TLS_PROTOCOL_MIN",     NULL,   LDAP_OPT_X_TLS_PROTOCOL_MIN},
 127
 128 #ifdef HAVE_OPENSSL_CRL
 129         {0, ATTR_TLS,   "TLS_CRLCHECK",         NULL,   LDAP_OPT_X_TLS_CRLCHECK},
 130 #endif
 131 #ifdef HAVE_GNUTLS
 132         {0, ATTR_TLS,   "TLS_CRLFILE",                  NULL,   LDAP_OPT_X_TLS_CRLFILE},
 133 #endif
 134
 135 #endif
 136
 137         {0, ATTR_NONE,          NULL,           NULL,   0}
 138 };
 139
 140 #define MAX_LDAP_ATTR_LEN  sizeof("GSSAPI_ALLOW_REMOTE_PRINCIPAL")
 141 #define MAX_LDAP_ENV_PREFIX_LEN 8
 142
 143 static void openldap_ldap_init_w_conf(
 144         const char *file, int userconf )
 145 {
 146         char linebuf[ AC_LINE_MAX ];
 147         FILE *fp;
 148         int i;
 149         char *cmd, *opt;
 150         char *start, *end;
 151         struct ldapoptions *gopts;
 152
 153         if ((gopts = LDAP_INT_GLOBAL_OPT()) == NULL) {
 154                 return;                 /* Could not allocate mem for global options */
 155         }
 156
 157         if (file == NULL) {
 158                 /* no file name */
 159                 return;
 160         }
 161
 162         Debug(LDAP_DEBUG_TRACE, "ldap_init: trying %s\n", file, 0, 0);
 163
 164         fp = fopen(file, "r");
 165         if(fp == NULL) {
 166                 /* could not open file */
 167                 return;
 168         }
 169
 170         Debug(LDAP_DEBUG_TRACE, "ldap_init: using %s\n", file, 0, 0);
 171
 172         while((start = fgets(linebuf, sizeof(linebuf), fp)) != NULL) {
 173                 /* skip lines starting with '#' */
 174                 if(*start == '#') continue;
 175
 176                 /* trim leading white space */
 177                 while((*start != '\0') && isspace((unsigned char) *start))
 178                         start++;
 179
 180                 /* anything left? */
 181                 if(*start == '\0') continue;
 182
 183                 /* trim trailing white space */
 184                 end = &start[strlen(start)-1];
 185                 while(isspace((unsigned char)*end)) end--;
 186                 end[1] = '\0';
 187
 188                 /* anything left? */
 189                 if(*start == '\0') continue;
 190
 191
 192                 /* parse the command */
 193                 cmd=start;
 194                 while((*start != '\0') && !isspace((unsigned char)*start)) {
 195                         start++;
 196                 }
 197                 if(*start == '\0') {
 198                         /* command has no argument */
 199                         continue;
 200                 }
 201
 202                 *start++ = '\0';
 203
 204                 /* we must have some whitespace to skip */
 205                 while(isspace((unsigned char)*start)) start++;
 206                 opt = start;
 207
 208                 for(i=0; attrs[i].type != ATTR_NONE; i++) {
 209                         void *p;
 210
 211                         if( !userconf && attrs[i].useronly ) {
 212                                 continue;
 213                         }
 214
 215                         if(strcasecmp(cmd, attrs[i].name) != 0) {
 216                                 continue;
 217                         }
 218
 219                         switch(attrs[i].type) {
 220                         case ATTR_BOOL:
 221                                 if((strcasecmp(opt, "on") == 0)
 222                                         || (strcasecmp(opt, "yes") == 0)
 223                                         || (strcasecmp(opt, "true") == 0))
 224                                 {
 225                                         LDAP_BOOL_SET(gopts, attrs[i].offset);
 226
 227                                 } else {
 228                                         LDAP_BOOL_CLR(gopts, attrs[i].offset);
 229                                 }
 230
 231                                 break;
 232
 233                         case ATTR_INT: {
 234                                 char *next;
 235                                 long l;
 236                                 p = &((char *) gopts)[attrs[i].offset];
 237                                 l = strtol( opt, &next, 10 );
 238                                 if ( next != opt && next[ 0 ] == '\0' ) {
 239                                         * (int*) p = l;
 240                                 }
 241                                 } break;
 242
 243                         case ATTR_KV: {
 244                                         const struct ol_keyvalue *kv;
 245
 246                                         for(kv = attrs[i].data;
 247                                                 kv->key != NULL;
 248                                                 kv++) {
 249
 250                                                 if(strcasecmp(opt, kv->key) == 0) {
 251                                                         p = &((char *) gopts)[attrs[i].offset];
 252                                                         * (int*) p = kv->value;
 253                                                         break;
 254                                                 }
 255                                         }
 256                                 } break;
 257
 258                         case ATTR_STRING:
 259                                 p = &((char *) gopts)[attrs[i].offset];
 260                                 if (* (char**) p != NULL) LDAP_FREE(* (char**) p);
 261                                 * (char**) p = LDAP_STRDUP(opt);
 262                                 break;
 263                         case ATTR_OPTION:
 264                                 ldap_set_option( NULL, attrs[i].offset, opt );
 265                                 break;
 266                         case ATTR_SASL:
 267 #ifdef HAVE_CYRUS_SASL
 268                                 ldap_int_sasl_config( gopts, attrs[i].offset, opt );
 269 #endif
 270                                 break;
 271                         case ATTR_GSSAPI:
 272 #ifdef HAVE_GSSAPI
 273                                 ldap_int_gssapi_config( gopts, attrs[i].offset, opt );
 274 #endif
 275                                 break;
 276                         case ATTR_TLS:
 277 #ifdef HAVE_TLS
 278                                 ldap_int_tls_config( NULL, attrs[i].offset, opt );
 279 #endif
 280                                 break;
 281                         case ATTR_OPT_TV: {
 282                                 struct timeval tv;
 283                                 char *next;
 284                                 tv.tv_usec = 0;
 285                                 tv.tv_sec = strtol( opt, &next, 10 );
 286                                 if ( next != opt && next[ 0 ] == '\0' && tv.tv_sec > 0 ) {
 287                                         (void)ldap_set_option( NULL, attrs[i].offset, (const void *)&tv );
 288                                 }
 289                                 } break;
 290                         case ATTR_OPT_INT: {
 291                                 long l;
 292                                 char *next;
 293                                 l = strtol( opt, &next, 10 );
 294                                 if ( next != opt && next[ 0 ] == '\0' && l > 0 && (long)((int)l) == l ) {
 295                                         int v = (int)l;
 296                                         (void)ldap_set_option( NULL, attrs[i].offset, (const void *)&v );
 297                                 }
 298                                 } break;
 299                         }
 300
 301                         break;
 302                 }
 303         }
 304
 305         fclose(fp);
 306 }
 307
 308 static void openldap_ldap_init_w_sysconf(const char *file)
 309 {
 310         openldap_ldap_init_w_conf( file, 0 );
 311 }
 312
 313 static void openldap_ldap_init_w_userconf(const char *file)
 314 {
 315         char *home;
 316         char *path = NULL;
 317
 318         if (file == NULL) {
 319                 /* no file name */
 320                 return;
 321         }
 322
 323         home = getenv("HOME");
 324
 325         if (home != NULL) {
 326                 Debug(LDAP_DEBUG_TRACE, "ldap_init: HOME env is %s\n",
 327                       home, 0, 0);
 328                 path = LDAP_MALLOC(strlen(home) + strlen(file) + sizeof( LDAP_DIRSEP "."));
 329         } else {
 330                 Debug(LDAP_DEBUG_TRACE, "ldap_init: HOME env is NULL\n",
 331                       0, 0, 0);
 332         }
 333
 334         if(home != NULL && path != NULL) {
 335                 /* we assume UNIX path syntax is used... */
 336
 337                 /* try ~/file */
 338                 sprintf(path, "%s" LDAP_DIRSEP "%s", home, file);
 339                 openldap_ldap_init_w_conf(path, 1);
 340
 341                 /* try ~/.file */
 342                 sprintf(path, "%s" LDAP_DIRSEP ".%s", home, file);
 343                 openldap_ldap_init_w_conf(path, 1);
 344         }
 345
 346         if(path != NULL) {
 347                 LDAP_FREE(path);
 348         }
 349
 350         /* try file */
 351         openldap_ldap_init_w_conf(file, 1);
 352 }
 353
 354 static void openldap_ldap_init_w_env(
 355                 struct ldapoptions *gopts,
 356                 const char *prefix)
 357 {
 358         char buf[MAX_LDAP_ATTR_LEN+MAX_LDAP_ENV_PREFIX_LEN];
 359         int len;
 360         int i;
 361         void *p;
 362         char *value;
 363
 364         if (prefix == NULL) {
 365                 prefix = LDAP_ENV_PREFIX;
 366         }
 367
 368         strncpy(buf, prefix, MAX_LDAP_ENV_PREFIX_LEN);
 369         buf[MAX_LDAP_ENV_PREFIX_LEN] = '\0';
 370         len = strlen(buf);
 371
 372         for(i=0; attrs[i].type != ATTR_NONE; i++) {
 373                 strcpy(&buf[len], attrs[i].name);
 374                 value = getenv(buf);
 375
 376                 if(value == NULL) {
 377                         continue;
 378                 }
 379
 380                 switch(attrs[i].type) {
 381                 case ATTR_BOOL:
 382                         if((strcasecmp(value, "on") == 0)
 383                                 || (strcasecmp(value, "yes") == 0)
 384                                 || (strcasecmp(value, "true") == 0))
 385                         {
 386                                 LDAP_BOOL_SET(gopts, attrs[i].offset);
 387
 388                         } else {
 389                                 LDAP_BOOL_CLR(gopts, attrs[i].offset);
 390                         }
 391                         break;
 392
 393                 case ATTR_INT:
 394                         p = &((char *) gopts)[attrs[i].offset];
 395                         * (int*) p = atoi(value);
 396                         break;
 397
 398                 case ATTR_KV: {
 399                                 const struct ol_keyvalue *kv;
 400
 401                                 for(kv = attrs[i].data;
 402                                         kv->key != NULL;
 403                                         kv++) {
 404
 405                                         if(strcasecmp(value, kv->key) == 0) {
 406                                                 p = &((char *) gopts)[attrs[i].offset];
 407                                                 * (int*) p = kv->value;
 408                                                 break;
 409                                         }
 410                                 }
 411                         } break;
 412
 413                 case ATTR_STRING:
 414                         p = &((char *) gopts)[attrs[i].offset];
 415                         if (* (char**) p != NULL) LDAP_FREE(* (char**) p);
 416                         if (*value == '\0') {
 417                                 * (char**) p = NULL;
 418                         } else {
 419                                 * (char**) p = LDAP_STRDUP(value);
 420                         }
 421                         break;
 422                 case ATTR_OPTION:
 423                         ldap_set_option( NULL, attrs[i].offset, value );
 424                         break;
 425                 case ATTR_SASL:
 426 #ifdef HAVE_CYRUS_SASL
 427                         ldap_int_sasl_config( gopts, attrs[i].offset, value );
 428 #endif
 429                         break;
 430                 case ATTR_GSSAPI:
 431 #ifdef HAVE_GSSAPI
 432                         ldap_int_gssapi_config( gopts, attrs[i].offset, value );
 433 #endif
 434                         break;
 435                 case ATTR_TLS:
 436 #ifdef HAVE_TLS
 437                         ldap_int_tls_config( NULL, attrs[i].offset, value );
 438 #endif
 439                         break;
 440                 case ATTR_OPT_TV: {
 441                         struct timeval tv;
 442                         char *next;
 443                         tv.tv_usec = 0;
 444                         tv.tv_sec = strtol( value, &next, 10 );
 445                         if ( next != value && next[ 0 ] == '\0' && tv.tv_sec > 0 ) {
 446                                 (void)ldap_set_option( NULL, attrs[i].offset, (const void *)&tv );
 447                         }
 448                         } break;
 449                 case ATTR_OPT_INT: {
 450                         long l;
 451                         char *next;
 452                         l = strtol( value, &next, 10 );
 453                         if ( next != value && next[ 0 ] == '\0' && l > 0 && (long)((int)l) == l ) {
 454                                 int v = (int)l;
 455                                 (void)ldap_set_option( NULL, attrs[i].offset, (const void *)&v );
 456                         }
 457                         } break;
 458                 }
 459         }
 460 }
 461
 462 #if defined(__GNUC__)
 463 /* Declare this function as a destructor so that it will automatically be
 464  * invoked either at program exit (if libldap is a static library) or
 465  * at unload time (if libldap is a dynamic library).
 466  *
 467  * Sorry, don't know how to handle this for non-GCC environments.
 468  */
 469 static void ldap_int_destroy_global_options(void)
 470         __attribute__ ((destructor));
 471 #endif
 472
 473 static void
 474 ldap_int_destroy_global_options(void)
 475 {
 476         struct ldapoptions *gopts = LDAP_INT_GLOBAL_OPT();
 477
 478         if ( gopts == NULL )
 479                 return;
 480
 481         gopts->ldo_valid = LDAP_UNINITIALIZED;
 482
 483         if ( gopts->ldo_defludp ) {
 484                 ldap_free_urllist( gopts->ldo_defludp );
 485                 gopts->ldo_defludp = NULL;
 486         }
 487 #if defined(HAVE_WINSOCK) || defined(HAVE_WINSOCK2)
 488         WSACleanup( );
 489 #endif
 490
 491 #if defined(HAVE_TLS) || defined(HAVE_CYRUS_SASL)
 492         if ( ldap_int_hostname ) {
 493                 LDAP_FREE( ldap_int_hostname );
 494                 ldap_int_hostname = NULL;
 495         }
 496 #endif
 497 #ifdef HAVE_CYRUS_SASL
 498         if ( gopts->ldo_def_sasl_authcid ) {
 499                 LDAP_FREE( gopts->ldo_def_sasl_authcid );
 500                 gopts->ldo_def_sasl_authcid = NULL;
 501         }
 502 #endif
 503 #ifdef HAVE_TLS
 504         ldap_int_tls_destroy( gopts );
 505 #endif
 506 }
 507
 508 /*
 509  * Initialize the global options structure with default values.
 510  */
 511 void ldap_int_initialize_global_options( struct ldapoptions *gopts, int *dbglvl )
 512 {
 513         LDAP_PVT_MUTEX_FIRSTCREATE(gopts->ldo_mutex);
 514         LDAP_MUTEX_LOCK( &gopts->ldo_mutex );
 515         if (gopts->ldo_valid == LDAP_INITIALIZED) {
 516                 /* someone else got here first */
 517                 LDAP_MUTEX_UNLOCK( &gopts->ldo_mutex );
 518                 return;
 519         }
 520         if (dbglvl)
 521             gopts->ldo_debug = *dbglvl;
 522         else
 523                 gopts->ldo_debug = 0;
 524
 525         gopts->ldo_version   = LDAP_VERSION2;
 526         gopts->ldo_deref     = LDAP_DEREF_NEVER;
 527         gopts->ldo_timelimit = LDAP_NO_LIMIT;
 528         gopts->ldo_sizelimit = LDAP_NO_LIMIT;
 529
 530         gopts->ldo_tm_api.tv_sec = -1;
 531         gopts->ldo_tm_net.tv_sec = -1;
 532
 533         /* ldo_defludp will be freed by the termination handler
 534          */
 535         ldap_url_parselist(&gopts->ldo_defludp, "ldap://localhost/");
 536         gopts->ldo_defport = LDAP_PORT;
 537 #if !defined(__GNUC__) && !defined(PIC)
 538         /* Do this only for a static library, and only if we can't
 539          * arrange for it to be executed as a library destructor
 540          */
 541         atexit(ldap_int_destroy_global_options);
 542 #endif
 543
 544         gopts->ldo_refhoplimit = LDAP_DEFAULT_REFHOPLIMIT;
 545         gopts->ldo_rebind_proc = NULL;
 546         gopts->ldo_rebind_params = NULL;
 547
 548         LDAP_BOOL_ZERO(gopts);
 549
 550         LDAP_BOOL_SET(gopts, LDAP_BOOL_REFERRALS);
 551
 552 #ifdef LDAP_CONNECTIONLESS
 553         gopts->ldo_peer = NULL;
 554         gopts->ldo_cldapdn = NULL;
 555         gopts->ldo_is_udp = 0;
 556 #endif
 557
 558 #ifdef HAVE_CYRUS_SASL
 559         gopts->ldo_def_sasl_mech = NULL;
 560         gopts->ldo_def_sasl_realm = NULL;
 561         gopts->ldo_def_sasl_authcid = NULL;
 562         gopts->ldo_def_sasl_authzid = NULL;
 563
 564         memset( &gopts->ldo_sasl_secprops,
 565                 '\0', sizeof(gopts->ldo_sasl_secprops) );
 566
 567         gopts->ldo_sasl_secprops.max_ssf = INT_MAX;
 568         gopts->ldo_sasl_secprops.maxbufsize = SASL_MAX_BUFF_SIZE;
 569         gopts->ldo_sasl_secprops.security_flags =
 570                 SASL_SEC_NOPLAINTEXT | SASL_SEC_NOANONYMOUS;
 571 #endif
 572
 573 #ifdef HAVE_TLS
 574         gopts->ldo_tls_connect_cb = NULL;
 575         gopts->ldo_tls_connect_arg = NULL;
 576         gopts->ldo_tls_require_cert = LDAP_OPT_X_TLS_DEMAND;
 577 #endif
 578         gopts->ldo_keepalive_probes = 0;
 579         gopts->ldo_keepalive_interval = 0;
 580         gopts->ldo_keepalive_idle = 0;
 581
 582         gopts->ldo_valid = LDAP_INITIALIZED;
 583         LDAP_MUTEX_UNLOCK( &gopts->ldo_mutex );
 584         return;
 585 }
 586
 587 #if defined(HAVE_TLS) || defined(HAVE_CYRUS_SASL)
 588 char * ldap_int_hostname = NULL;
 589 #endif
 590
 591 void ldap_int_initialize( struct ldapoptions *gopts, int *dbglvl )
 592 {
 593         if ( gopts->ldo_valid == LDAP_INITIALIZED ) {
 594                 return;
 595         }
 596
 597         ldap_int_error_init();
 598
 599         ldap_int_utils_init();
 600
 601 #ifdef HAVE_WINSOCK2
 602 {       WORD wVersionRequested;
 603         WSADATA wsaData;
 604
 605         wVersionRequested = MAKEWORD( 2, 0 );
 606         if ( WSAStartup( wVersionRequested, &wsaData ) != 0 ) {
 607                 /* Tell the user that we couldn't find a usable */
 608                 /* WinSock DLL.                                  */
 609                 return;
 610         }
 611
 612         /* Confirm that the WinSock DLL supports 2.0.*/
 613         /* Note that if the DLL supports versions greater    */
 614         /* than 2.0 in addition to 2.0, it will still return */
 615         /* 2.0 in wVersion since that is the version we      */
 616         /* requested.                                        */
 617
 618         if ( LOBYTE( wsaData.wVersion ) != 2 ||
 619                 HIBYTE( wsaData.wVersion ) != 0 )
 620         {
 621             /* Tell the user that we couldn't find a usable */
 622             /* WinSock DLL.                                  */
 623             WSACleanup( );
 624             return;
 625         }
 626 }       /* The WinSock DLL is acceptable. Proceed. */
 627 #elif HAVE_WINSOCK
 628 {       WSADATA wsaData;
 629         if ( WSAStartup( 0x0101, &wsaData ) != 0 ) {
 630             return;
 631         }
 632 }
 633 #endif
 634
 635 #if defined(HAVE_TLS) || defined(HAVE_CYRUS_SASL)
 636         {
 637                 char    *name = ldap_int_hostname;
 638
 639                 ldap_int_hostname = ldap_pvt_get_fqdn( name );
 640
 641                 if ( name != NULL && name != ldap_int_hostname ) {
 642                         LDAP_FREE( name );
 643                 }
 644         }
 645 #endif
 646
 647 #ifndef HAVE_POLL
 648         if ( ldap_int_tblsize == 0 ) ldap_int_ip_init();
 649 #endif
 650
 651         ldap_int_initialize_global_options(gopts, NULL);
 652
 653         if( getenv("LDAPNOINIT") != NULL ) {
 654                 return;
 655         }
 656
 657 #ifdef HAVE_CYRUS_SASL
 658         {
 659                 /* set authentication identity to current user name */
 660                 char *user = getenv("USER");
 661
 662                 if( user == NULL ) user = getenv("USERNAME");
 663                 if( user == NULL ) user = getenv("LOGNAME");
 664
 665                 if( user != NULL ) {
 666                         gopts->ldo_def_sasl_authcid = LDAP_STRDUP( user );
 667                 }
 668     }
 669 #endif
 670
 671         openldap_ldap_init_w_sysconf(LDAP_CONF_FILE);
 672
 673 #ifdef HAVE_GETEUID
 674         if ( geteuid() != getuid() )
 675                 return;
 676 #endif
 677
 678         openldap_ldap_init_w_userconf(LDAP_USERRC_FILE);
 679
 680         {
 681                 char *altfile = getenv(LDAP_ENV_PREFIX "CONF");
 682
 683                 if( altfile != NULL ) {
 684                         Debug(LDAP_DEBUG_TRACE, "ldap_init: %s env is %s\n",
 685                               LDAP_ENV_PREFIX "CONF", altfile, 0);
 686                         openldap_ldap_init_w_sysconf( altfile );
 687                 }
 688                 else
 689                         Debug(LDAP_DEBUG_TRACE, "ldap_init: %s env is NULL\n",
 690                               LDAP_ENV_PREFIX "CONF", 0, 0);
 691         }
 692
 693         {
 694                 char *altfile = getenv(LDAP_ENV_PREFIX "RC");
 695
 696                 if( altfile != NULL ) {
 697                         Debug(LDAP_DEBUG_TRACE, "ldap_init: %s env is %s\n",
 698                               LDAP_ENV_PREFIX "RC", altfile, 0);
 699                         openldap_ldap_init_w_userconf( altfile );
 700                 }
 701                 else
 702                         Debug(LDAP_DEBUG_TRACE, "ldap_init: %s env is NULL\n",
 703                               LDAP_ENV_PREFIX "RC", 0, 0);
 704         }
 705
 706         openldap_ldap_init_w_env(gopts, NULL);
 707 }