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 1998-2015 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
  40                 LDAP_LDO_NULLARG
  41                 LDAP_LDO_CONNECTIONLESS_NULLARG
  42                 LDAP_LDO_TLS_NULLARG
  43                 LDAP_LDO_SASL_NULLARG
  44                 LDAP_LDO_GSSAPI_NULLARG
  45                 LDAP_LDO_MUTEX_NULLARG };
  46
  47 #define ATTR_NONE       0
  48 #define ATTR_BOOL       1
  49 #define ATTR_INT        2
  50 #define ATTR_KV         3
  51 #define ATTR_STRING     4
  52 #define ATTR_OPTION     5
  53
  54 #define ATTR_SASL       6
  55 #define ATTR_TLS        7
  56
  57 #define ATTR_OPT_TV     8
  58 #define ATTR_OPT_INT    9
  59
  60 #define ATTR_GSSAPI     10
  61
  62 struct ol_keyvalue {
  63         const char *            key;
  64         int                     value;
  65 };
  66
  67 static const struct ol_keyvalue deref_kv[] = {
  68         {"never", LDAP_DEREF_NEVER},
  69         {"searching", LDAP_DEREF_SEARCHING},
  70         {"finding", LDAP_DEREF_FINDING},
  71         {"always", LDAP_DEREF_ALWAYS},
  72         {NULL, 0}
  73 };
  74
  75 static const struct ol_attribute {
  76         int                     useronly;
  77         int                     type;
  78         const char *    name;
  79         const void *    data;
  80         size_t          offset;
  81 } attrs[] = {
  82         {0, ATTR_OPT_TV,        "TIMEOUT",              NULL,   LDAP_OPT_TIMEOUT},
  83         {0, ATTR_OPT_TV,        "NETWORK_TIMEOUT",      NULL,   LDAP_OPT_NETWORK_TIMEOUT},
  84         {0, ATTR_OPT_INT,       "VERSION",              NULL,   LDAP_OPT_PROTOCOL_VERSION},
  85         {0, ATTR_KV,            "DEREF",        deref_kv, /* or &deref_kv[0] */
  86                 offsetof(struct ldapoptions, ldo_deref)},
  87         {0, ATTR_INT,           "SIZELIMIT",    NULL,
  88                 offsetof(struct ldapoptions, ldo_sizelimit)},
  89         {0, ATTR_INT,           "TIMELIMIT",    NULL,
  90                 offsetof(struct ldapoptions, ldo_timelimit)},
  91         {1, ATTR_STRING,        "BINDDN",               NULL,
  92                 offsetof(struct ldapoptions, ldo_defbinddn)},
  93         {0, ATTR_STRING,        "BASE",                 NULL,
  94                 offsetof(struct ldapoptions, ldo_defbase)},
  95         {0, ATTR_INT,           "PORT",                 NULL,           /* deprecated */
  96                 offsetof(struct ldapoptions, ldo_defport)},
  97         {0, ATTR_OPTION,        "HOST",                 NULL,   LDAP_OPT_HOST_NAME}, /* deprecated */
  98         {0, ATTR_OPTION,        "URI",                  NULL,   LDAP_OPT_URI}, /* replaces HOST/PORT */
  99         {0, ATTR_BOOL,          "REFERRALS",    NULL,   LDAP_BOOL_REFERRALS},
 100 #if 0
 101         /* This should only be allowed via ldap_set_option(3) */
 102         {0, ATTR_BOOL,          "RESTART",              NULL,   LDAP_BOOL_RESTART},
 103 #endif
 104
 105 #ifdef HAVE_CYRUS_SASL
 106         {0, ATTR_STRING,        "SASL_MECH",            NULL,
 107                 offsetof(struct ldapoptions, ldo_def_sasl_mech)},
 108         {0, ATTR_STRING,        "SASL_REALM",           NULL,
 109                 offsetof(struct ldapoptions, ldo_def_sasl_realm)},
 110         {1, ATTR_STRING,        "SASL_AUTHCID",         NULL,
 111                 offsetof(struct ldapoptions, ldo_def_sasl_authcid)},
 112         {1, ATTR_STRING,        "SASL_AUTHZID",         NULL,
 113                 offsetof(struct ldapoptions, ldo_def_sasl_authzid)},
 114         {0, ATTR_SASL,          "SASL_SECPROPS",        NULL,   LDAP_OPT_X_SASL_SECPROPS},
 115         {0, ATTR_BOOL,          "SASL_NOCANON", NULL,   LDAP_BOOL_SASL_NOCANON},
 116 #endif
 117
 118 #ifdef HAVE_GSSAPI
 119         {0, ATTR_GSSAPI,"GSSAPI_SIGN",                  NULL,   LDAP_OPT_SIGN},
 120         {0, ATTR_GSSAPI,"GSSAPI_ENCRYPT",               NULL,   LDAP_OPT_ENCRYPT},
 121         {0, ATTR_GSSAPI,"GSSAPI_ALLOW_REMOTE_PRINCIPAL",NULL,   LDAP_OPT_X_GSSAPI_ALLOW_REMOTE_PRINCIPAL},
 122 #endif
 123
 124 #ifdef HAVE_TLS
 125         {1, ATTR_TLS,   "TLS_CERT",                     NULL,   LDAP_OPT_X_TLS_CERTFILE},
 126         {1, ATTR_TLS,   "TLS_KEY",                      NULL,   LDAP_OPT_X_TLS_KEYFILE},
 127         {0, ATTR_TLS,   "TLS_CACERT",           NULL,   LDAP_OPT_X_TLS_CACERTFILE},
 128         {0, ATTR_TLS,   "TLS_CACERTDIR",        NULL,   LDAP_OPT_X_TLS_CACERTDIR},
 129         {0, ATTR_TLS,   "TLS_REQCERT",          NULL,   LDAP_OPT_X_TLS_REQUIRE_CERT},
 130         {0, ATTR_TLS,   "TLS_RANDFILE",         NULL,   LDAP_OPT_X_TLS_RANDOM_FILE},
 131         {0, ATTR_TLS,   "TLS_CIPHER_SUITE",     NULL,   LDAP_OPT_X_TLS_CIPHER_SUITE},
 132         {0, ATTR_TLS,   "TLS_PROTOCOL_MIN",     NULL,   LDAP_OPT_X_TLS_PROTOCOL_MIN},
 133
 134 #ifdef HAVE_OPENSSL_CRL
 135         {0, ATTR_TLS,   "TLS_CRLCHECK",         NULL,   LDAP_OPT_X_TLS_CRLCHECK},
 136 #endif
 137 #ifdef HAVE_GNUTLS
 138         {0, ATTR_TLS,   "TLS_CRLFILE",                  NULL,   LDAP_OPT_X_TLS_CRLFILE},
 139 #endif
 140
 141 #endif
 142
 143         {0, ATTR_NONE,          NULL,           NULL,   0}
 144 };
 145
 146 #define MAX_LDAP_ATTR_LEN  sizeof("GSSAPI_ALLOW_REMOTE_PRINCIPAL")
 147 #define MAX_LDAP_ENV_PREFIX_LEN 8
 148
 149 static void openldap_ldap_init_w_conf(
 150         const char *file, int userconf )
 151 {
 152         char linebuf[ AC_LINE_MAX ];
 153         FILE *fp;
 154         int i;
 155         char *cmd, *opt;
 156         char *start, *end;
 157         struct ldapoptions *gopts;
 158
 159         if ((gopts = LDAP_INT_GLOBAL_OPT()) == NULL) {
 160                 return;                 /* Could not allocate mem for global options */
 161         }
 162
 163         if (file == NULL) {
 164                 /* no file name */
 165                 return;
 166         }
 167
 168         Debug(LDAP_DEBUG_TRACE, "ldap_init: trying %s\n", file, 0, 0);
 169
 170         fp = fopen(file, "r");
 171         if(fp == NULL) {
 172                 /* could not open file */
 173                 return;
 174         }
 175
 176         Debug(LDAP_DEBUG_TRACE, "ldap_init: using %s\n", file, 0, 0);
 177
 178         while((start = fgets(linebuf, sizeof(linebuf), fp)) != NULL) {
 179                 /* skip lines starting with '#' */
 180                 if(*start == '#') continue;
 181
 182                 /* trim leading white space */
 183                 while((*start != '\0') && isspace((unsigned char) *start))
 184                         start++;
 185
 186                 /* anything left? */
 187                 if(*start == '\0') continue;
 188
 189                 /* trim trailing white space */
 190                 end = &start[strlen(start)-1];
 191                 while(isspace((unsigned char)*end)) end--;
 192                 end[1] = '\0';
 193
 194                 /* anything left? */
 195                 if(*start == '\0') continue;
 196
 197
 198                 /* parse the command */
 199                 cmd=start;
 200                 while((*start != '\0') && !isspace((unsigned char)*start)) {
 201                         start++;
 202                 }
 203                 if(*start == '\0') {
 204                         /* command has no argument */
 205                         continue;
 206                 }
 207
 208                 *start++ = '\0';
 209
 210                 /* we must have some whitespace to skip */
 211                 while(isspace((unsigned char)*start)) start++;
 212                 opt = start;
 213
 214                 for(i=0; attrs[i].type != ATTR_NONE; i++) {
 215                         void *p;
 216
 217                         if( !userconf && attrs[i].useronly ) {
 218                                 continue;
 219                         }
 220
 221                         if(strcasecmp(cmd, attrs[i].name) != 0) {
 222                                 continue;
 223                         }
 224
 225                         switch(attrs[i].type) {
 226                         case ATTR_BOOL:
 227                                 if((strcasecmp(opt, "on") == 0)
 228                                         || (strcasecmp(opt, "yes") == 0)
 229                                         || (strcasecmp(opt, "true") == 0))
 230                                 {
 231                                         LDAP_BOOL_SET(gopts, attrs[i].offset);
 232
 233                                 } else {
 234                                         LDAP_BOOL_CLR(gopts, attrs[i].offset);
 235                                 }
 236
 237                                 break;
 238
 239                         case ATTR_INT: {
 240                                 char *next;
 241                                 long l;
 242                                 p = &((char *) gopts)[attrs[i].offset];
 243                                 l = strtol( opt, &next, 10 );
 244                                 if ( next != opt && next[ 0 ] == '\0' ) {
 245                                         * (int*) p = l;
 246                                 }
 247                                 } break;
 248
 249                         case ATTR_KV: {
 250                                         const struct ol_keyvalue *kv;
 251
 252                                         for(kv = attrs[i].data;
 253                                                 kv->key != NULL;
 254                                                 kv++) {
 255
 256                                                 if(strcasecmp(opt, kv->key) == 0) {
 257                                                         p = &((char *) gopts)[attrs[i].offset];
 258                                                         * (int*) p = kv->value;
 259                                                         break;
 260                                                 }
 261                                         }
 262                                 } break;
 263
 264                         case ATTR_STRING:
 265                                 p = &((char *) gopts)[attrs[i].offset];
 266                                 if (* (char**) p != NULL) LDAP_FREE(* (char**) p);
 267                                 * (char**) p = LDAP_STRDUP(opt);
 268                                 break;
 269                         case ATTR_OPTION:
 270                                 ldap_set_option( NULL, attrs[i].offset, opt );
 271                                 break;
 272                         case ATTR_SASL:
 273 #ifdef HAVE_CYRUS_SASL
 274                                 ldap_int_sasl_config( gopts, attrs[i].offset, opt );
 275 #endif
 276                                 break;
 277                         case ATTR_GSSAPI:
 278 #ifdef HAVE_GSSAPI
 279                                 ldap_int_gssapi_config( gopts, attrs[i].offset, opt );
 280 #endif
 281                                 break;
 282                         case ATTR_TLS:
 283 #ifdef HAVE_TLS
 284                                 ldap_pvt_tls_config( NULL, attrs[i].offset, opt );
 285 #endif
 286                                 break;
 287                         case ATTR_OPT_TV: {
 288                                 struct timeval tv;
 289                                 char *next;
 290                                 tv.tv_usec = 0;
 291                                 tv.tv_sec = strtol( opt, &next, 10 );
 292                                 if ( next != opt && next[ 0 ] == '\0' && tv.tv_sec > 0 ) {
 293                                         (void)ldap_set_option( NULL, attrs[i].offset, (const void *)&tv );
 294                                 }
 295                                 } break;
 296                         case ATTR_OPT_INT: {
 297                                 long l;
 298                                 char *next;
 299                                 l = strtol( opt, &next, 10 );
 300                                 if ( next != opt && next[ 0 ] == '\0' && l > 0 && (long)((int)l) == l ) {
 301                                         int v = (int)l;
 302                                         (void)ldap_set_option( NULL, attrs[i].offset, (const void *)&v );
 303                                 }
 304                                 } break;
 305                         }
 306
 307                         break;
 308                 }
 309         }
 310
 311         fclose(fp);
 312 }
 313
 314 static void openldap_ldap_init_w_sysconf(const char *file)
 315 {
 316         openldap_ldap_init_w_conf( file, 0 );
 317 }
 318
 319 static void openldap_ldap_init_w_userconf(const char *file)
 320 {
 321         char *home;
 322         char *path = NULL;
 323
 324         if (file == NULL) {
 325                 /* no file name */
 326                 return;
 327         }
 328
 329         home = getenv("HOME");
 330
 331         if (home != NULL) {
 332                 Debug(LDAP_DEBUG_TRACE, "ldap_init: HOME env is %s\n",
 333                       home, 0, 0);
 334                 path = LDAP_MALLOC(strlen(home) + strlen(file) + sizeof( LDAP_DIRSEP "."));
 335         } else {
 336                 Debug(LDAP_DEBUG_TRACE, "ldap_init: HOME env is NULL\n",
 337                       0, 0, 0);
 338         }
 339
 340         if(home != NULL && path != NULL) {
 341                 /* we assume UNIX path syntax is used... */
 342
 343                 /* try ~/file */
 344                 sprintf(path, "%s" LDAP_DIRSEP "%s", home, file);
 345                 openldap_ldap_init_w_conf(path, 1);
 346
 347                 /* try ~/.file */
 348                 sprintf(path, "%s" LDAP_DIRSEP ".%s", home, file);
 349                 openldap_ldap_init_w_conf(path, 1);
 350         }
 351
 352         if(path != NULL) {
 353                 LDAP_FREE(path);
 354         }
 355
 356         /* try file */
 357         openldap_ldap_init_w_conf(file, 1);
 358 }
 359
 360 static void openldap_ldap_init_w_env(
 361                 struct ldapoptions *gopts,
 362                 const char *prefix)
 363 {
 364         char buf[MAX_LDAP_ATTR_LEN+MAX_LDAP_ENV_PREFIX_LEN];
 365         int len;
 366         int i;
 367         void *p;
 368         char *value;
 369
 370         if (prefix == NULL) {
 371                 prefix = LDAP_ENV_PREFIX;
 372         }
 373
 374         strncpy(buf, prefix, MAX_LDAP_ENV_PREFIX_LEN);
 375         buf[MAX_LDAP_ENV_PREFIX_LEN] = '\0';
 376         len = strlen(buf);
 377
 378         for(i=0; attrs[i].type != ATTR_NONE; i++) {
 379                 strcpy(&buf[len], attrs[i].name);
 380                 value = getenv(buf);
 381
 382                 if(value == NULL) {
 383                         continue;
 384                 }
 385
 386                 switch(attrs[i].type) {
 387                 case ATTR_BOOL:
 388                         if((strcasecmp(value, "on") == 0)
 389                                 || (strcasecmp(value, "yes") == 0)
 390                                 || (strcasecmp(value, "true") == 0))
 391                         {
 392                                 LDAP_BOOL_SET(gopts, attrs[i].offset);
 393
 394                         } else {
 395                                 LDAP_BOOL_CLR(gopts, attrs[i].offset);
 396                         }
 397                         break;
 398
 399                 case ATTR_INT:
 400                         p = &((char *) gopts)[attrs[i].offset];
 401                         * (int*) p = atoi(value);
 402                         break;
 403
 404                 case ATTR_KV: {
 405                                 const struct ol_keyvalue *kv;
 406
 407                                 for(kv = attrs[i].data;
 408                                         kv->key != NULL;
 409                                         kv++) {
 410
 411                                         if(strcasecmp(value, kv->key) == 0) {
 412                                                 p = &((char *) gopts)[attrs[i].offset];
 413                                                 * (int*) p = kv->value;
 414                                                 break;
 415                                         }
 416                                 }
 417                         } break;
 418
 419                 case ATTR_STRING:
 420                         p = &((char *) gopts)[attrs[i].offset];
 421                         if (* (char**) p != NULL) LDAP_FREE(* (char**) p);
 422                         if (*value == '\0') {
 423                                 * (char**) p = NULL;
 424                         } else {
 425                                 * (char**) p = LDAP_STRDUP(value);
 426                         }
 427                         break;
 428                 case ATTR_OPTION:
 429                         ldap_set_option( NULL, attrs[i].offset, value );
 430                         break;
 431                 case ATTR_SASL:
 432 #ifdef HAVE_CYRUS_SASL
 433                         ldap_int_sasl_config( gopts, attrs[i].offset, value );
 434 #endif
 435                         break;
 436                 case ATTR_GSSAPI:
 437 #ifdef HAVE_GSSAPI
 438                         ldap_int_gssapi_config( gopts, attrs[i].offset, value );
 439 #endif
 440                         break;
 441                 case ATTR_TLS:
 442 #ifdef HAVE_TLS
 443                         ldap_pvt_tls_config( NULL, attrs[i].offset, value );
 444 #endif
 445                         break;
 446                 case ATTR_OPT_TV: {
 447                         struct timeval tv;
 448                         char *next;
 449                         tv.tv_usec = 0;
 450                         tv.tv_sec = strtol( value, &next, 10 );
 451                         if ( next != value && next[ 0 ] == '\0' && tv.tv_sec > 0 ) {
 452                                 (void)ldap_set_option( NULL, attrs[i].offset, (const void *)&tv );
 453                         }
 454                         } break;
 455                 case ATTR_OPT_INT: {
 456                         long l;
 457                         char *next;
 458                         l = strtol( value, &next, 10 );
 459                         if ( next != value && next[ 0 ] == '\0' && l > 0 && (long)((int)l) == l ) {
 460                                 int v = (int)l;
 461                                 (void)ldap_set_option( NULL, attrs[i].offset, (const void *)&v );
 462                         }
 463                         } break;
 464                 }
 465         }
 466 }
 467
 468 #if defined(__GNUC__)
 469 /* Declare this function as a destructor so that it will automatically be
 470  * invoked either at program exit (if libldap is a static library) or
 471  * at unload time (if libldap is a dynamic library).
 472  *
 473  * Sorry, don't know how to handle this for non-GCC environments.
 474  */
 475 static void ldap_int_destroy_global_options(void)
 476         __attribute__ ((destructor));
 477 #endif
 478
 479 static void
 480 ldap_int_destroy_global_options(void)
 481 {
 482         struct ldapoptions *gopts = LDAP_INT_GLOBAL_OPT();
 483
 484         if ( gopts == NULL )
 485                 return;
 486
 487         gopts->ldo_valid = LDAP_UNINITIALIZED;
 488
 489         if ( gopts->ldo_defludp ) {
 490                 ldap_free_urllist( gopts->ldo_defludp );
 491                 gopts->ldo_defludp = NULL;
 492         }
 493 #if defined(HAVE_WINSOCK) || defined(HAVE_WINSOCK2)
 494         WSACleanup( );
 495 #endif
 496
 497 #if defined(HAVE_TLS) || defined(HAVE_CYRUS_SASL)
 498         if ( ldap_int_hostname ) {
 499                 LDAP_FREE( ldap_int_hostname );
 500                 ldap_int_hostname = NULL;
 501         }
 502 #endif
 503 #ifdef HAVE_CYRUS_SASL
 504         if ( gopts->ldo_def_sasl_authcid ) {
 505                 LDAP_FREE( gopts->ldo_def_sasl_authcid );
 506                 gopts->ldo_def_sasl_authcid = NULL;
 507         }
 508 #endif
 509 #ifdef HAVE_TLS
 510         ldap_int_tls_destroy( gopts );
 511 #endif
 512 }
 513
 514 /*
 515  * Initialize the global options structure with default values.
 516  */
 517 void ldap_int_initialize_global_options( struct ldapoptions *gopts, int *dbglvl )
 518 {
 519 #ifdef LDAP_R_COMPILE
 520         LDAP_PVT_MUTEX_FIRSTCREATE(gopts->ldo_mutex);
 521 #endif
 522         LDAP_MUTEX_LOCK( &gopts->ldo_mutex );
 523         if (gopts->ldo_valid == LDAP_INITIALIZED) {
 524                 /* someone else got here first */
 525                 LDAP_MUTEX_UNLOCK( &gopts->ldo_mutex );
 526                 return;
 527         }
 528         if (dbglvl)
 529             gopts->ldo_debug = *dbglvl;
 530         else
 531                 gopts->ldo_debug = 0;
 532
 533         gopts->ldo_version   = LDAP_VERSION2;
 534         gopts->ldo_deref     = LDAP_DEREF_NEVER;
 535         gopts->ldo_timelimit = LDAP_NO_LIMIT;
 536         gopts->ldo_sizelimit = LDAP_NO_LIMIT;
 537
 538         gopts->ldo_tm_api.tv_sec = -1;
 539         gopts->ldo_tm_net.tv_sec = -1;
 540
 541         /* ldo_defludp will be freed by the termination handler
 542          */
 543         ldap_url_parselist(&gopts->ldo_defludp, "ldap://localhost/");
 544         gopts->ldo_defport = LDAP_PORT;
 545 #if !defined(__GNUC__) && !defined(PIC)
 546         /* Do this only for a static library, and only if we can't
 547          * arrange for it to be executed as a library destructor
 548          */
 549         atexit(ldap_int_destroy_global_options);
 550 #endif
 551
 552         gopts->ldo_refhoplimit = LDAP_DEFAULT_REFHOPLIMIT;
 553         gopts->ldo_rebind_proc = NULL;
 554         gopts->ldo_rebind_params = NULL;
 555
 556         LDAP_BOOL_ZERO(gopts);
 557
 558         LDAP_BOOL_SET(gopts, LDAP_BOOL_REFERRALS);
 559
 560 #ifdef LDAP_CONNECTIONLESS
 561         gopts->ldo_peer = NULL;
 562         gopts->ldo_cldapdn = NULL;
 563         gopts->ldo_is_udp = 0;
 564 #endif
 565
 566 #ifdef HAVE_CYRUS_SASL
 567         gopts->ldo_def_sasl_mech = NULL;
 568         gopts->ldo_def_sasl_realm = NULL;
 569         gopts->ldo_def_sasl_authcid = NULL;
 570         gopts->ldo_def_sasl_authzid = NULL;
 571
 572         memset( &gopts->ldo_sasl_secprops,
 573                 '\0', sizeof(gopts->ldo_sasl_secprops) );
 574
 575         gopts->ldo_sasl_secprops.max_ssf = INT_MAX;
 576         gopts->ldo_sasl_secprops.maxbufsize = SASL_MAX_BUFF_SIZE;
 577         gopts->ldo_sasl_secprops.security_flags =
 578                 SASL_SEC_NOPLAINTEXT | SASL_SEC_NOANONYMOUS;
 579 #endif
 580
 581 #ifdef HAVE_TLS
 582         gopts->ldo_tls_connect_cb = NULL;
 583         gopts->ldo_tls_connect_arg = NULL;
 584         gopts->ldo_tls_require_cert = LDAP_OPT_X_TLS_DEMAND;
 585 #endif
 586         gopts->ldo_keepalive_probes = 0;
 587         gopts->ldo_keepalive_interval = 0;
 588         gopts->ldo_keepalive_idle = 0;
 589
 590         gopts->ldo_valid = LDAP_INITIALIZED;
 591         LDAP_MUTEX_UNLOCK( &gopts->ldo_mutex );
 592         return;
 593 }
 594
 595 #if defined(HAVE_TLS) || defined(HAVE_CYRUS_SASL)
 596 char * ldap_int_hostname = NULL;
 597 #endif
 598
 599 #ifdef LDAP_R_COMPILE
 600 int     ldap_int_stackguard;
 601 #endif
 602
 603 void ldap_int_initialize( struct ldapoptions *gopts, int *dbglvl )
 604 {
 605         if ( gopts->ldo_valid == LDAP_INITIALIZED ) {
 606                 return;
 607         }
 608
 609         ldap_int_error_init();
 610
 611         ldap_int_utils_init();
 612
 613 #ifdef HAVE_WINSOCK2
 614 {       WORD wVersionRequested;
 615         WSADATA wsaData;
 616
 617         wVersionRequested = MAKEWORD( 2, 0 );
 618         if ( WSAStartup( wVersionRequested, &wsaData ) != 0 ) {
 619                 /* Tell the user that we couldn't find a usable */
 620                 /* WinSock DLL.                                  */
 621                 return;
 622         }
 623
 624         /* Confirm that the WinSock DLL supports 2.0.*/
 625         /* Note that if the DLL supports versions greater    */
 626         /* than 2.0 in addition to 2.0, it will still return */
 627         /* 2.0 in wVersion since that is the version we      */
 628         /* requested.                                        */
 629
 630         if ( LOBYTE( wsaData.wVersion ) != 2 ||
 631                 HIBYTE( wsaData.wVersion ) != 0 )
 632         {
 633             /* Tell the user that we couldn't find a usable */
 634             /* WinSock DLL.                                  */
 635             WSACleanup( );
 636             return;
 637         }
 638 }       /* The WinSock DLL is acceptable. Proceed. */
 639 #elif defined(HAVE_WINSOCK)
 640 {       WSADATA wsaData;
 641         if ( WSAStartup( 0x0101, &wsaData ) != 0 ) {
 642             return;
 643         }
 644 }
 645 #endif
 646
 647 #if defined(HAVE_TLS) || defined(HAVE_CYRUS_SASL)
 648         LDAP_MUTEX_LOCK( &ldap_int_hostname_mutex );
 649         {
 650                 char    *name = ldap_int_hostname;
 651
 652                 ldap_int_hostname = ldap_pvt_get_fqdn( name );
 653
 654                 if ( name != NULL && name != ldap_int_hostname ) {
 655                         LDAP_FREE( name );
 656                 }
 657         }
 658         LDAP_MUTEX_UNLOCK( &ldap_int_hostname_mutex );
 659 #endif
 660
 661 #ifndef HAVE_POLL
 662         if ( ldap_int_tblsize == 0 ) ldap_int_ip_init();
 663 #endif
 664
 665         ldap_int_initialize_global_options(gopts, dbglvl);
 666
 667         if( getenv("LDAPNOINIT") != NULL ) {
 668                 return;
 669         }
 670
 671 #ifdef LDAP_R_COMPILE
 672         if( getenv("LDAPSTACKGUARD") != NULL ) {
 673                 ldap_int_stackguard = 1;
 674         }
 675 #endif
 676
 677 #ifdef HAVE_CYRUS_SASL
 678         {
 679                 /* set authentication identity to current user name */
 680                 char *user = getenv("USER");
 681
 682                 if( user == NULL ) user = getenv("USERNAME");
 683                 if( user == NULL ) user = getenv("LOGNAME");
 684
 685                 if( user != NULL ) {
 686                         gopts->ldo_def_sasl_authcid = LDAP_STRDUP( user );
 687                 }
 688     }
 689 #endif
 690
 691         openldap_ldap_init_w_sysconf(LDAP_CONF_FILE);
 692
 693 #ifdef HAVE_GETEUID
 694         if ( geteuid() != getuid() )
 695                 return;
 696 #endif
 697
 698         openldap_ldap_init_w_userconf(LDAP_USERRC_FILE);
 699
 700         {
 701                 char *altfile = getenv(LDAP_ENV_PREFIX "CONF");
 702
 703                 if( altfile != NULL ) {
 704                         Debug(LDAP_DEBUG_TRACE, "ldap_init: %s env is %s\n",
 705                               LDAP_ENV_PREFIX "CONF", altfile, 0);
 706                         openldap_ldap_init_w_sysconf( altfile );
 707                 }
 708                 else
 709                         Debug(LDAP_DEBUG_TRACE, "ldap_init: %s env is NULL\n",
 710                               LDAP_ENV_PREFIX "CONF", 0, 0);
 711         }
 712
 713         {
 714                 char *altfile = getenv(LDAP_ENV_PREFIX "RC");
 715
 716                 if( altfile != NULL ) {
 717                         Debug(LDAP_DEBUG_TRACE, "ldap_init: %s env is %s\n",
 718                               LDAP_ENV_PREFIX "RC", altfile, 0);
 719                         openldap_ldap_init_w_userconf( altfile );
 720                 }
 721                 else
 722                         Debug(LDAP_DEBUG_TRACE, "ldap_init: %s env is NULL\n",
 723                               LDAP_ENV_PREFIX "RC", 0, 0);
 724         }
 725
 726         openldap_ldap_init_w_env(gopts, NULL);
 727 }