File: init.c

package info (click to toggle)
openldap 2.4.44+dfsg-5+deb9u3
  • links: PTS, VCS
  • area: main
  • in suites: stretch
  • size: 27,140 kB
  • sloc: ansic: 286,761; sh: 42,918; cpp: 11,224; makefile: 2,793; sql: 1,714; perl: 527; tcl: 45
file content (723 lines) | stat: -rw-r--r-- 17,556 bytes parent folder | download | duplicates (2)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
/* $OpenLDAP$ */
/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
 *
 * Copyright 1998-2016 The OpenLDAP Foundation.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted only as authorized by the OpenLDAP
 * Public License.
 *
 * A copy of this license is available in the file LICENSE in the
 * top-level directory of the distribution or, alternatively, at
 * <http://www.OpenLDAP.org/license.html>.
 */

#include "portable.h"

#include <stdio.h>
#include <ac/stdlib.h>

#ifdef HAVE_GETEUID
#include <ac/unistd.h>
#endif

#include <ac/socket.h>
#include <ac/string.h>
#include <ac/ctype.h>
#include <ac/time.h>

#ifdef HAVE_LIMITS_H
#include <limits.h>
#endif

#include "ldap-int.h"
#include "ldap_defaults.h"
#include "lutil.h"

struct ldapoptions ldap_int_global_options =
	{ LDAP_UNINITIALIZED, LDAP_DEBUG_NONE
		LDAP_LDO_NULLARG
		LDAP_LDO_CONNECTIONLESS_NULLARG
		LDAP_LDO_TLS_NULLARG
		LDAP_LDO_SASL_NULLARG
		LDAP_LDO_GSSAPI_NULLARG
		LDAP_LDO_MUTEX_NULLARG };

#define ATTR_NONE	0
#define ATTR_BOOL	1
#define ATTR_INT	2
#define ATTR_KV		3
#define ATTR_STRING	4
#define ATTR_OPTION	5

#define ATTR_SASL	6
#define ATTR_TLS	7

#define ATTR_OPT_TV	8
#define ATTR_OPT_INT	9

#define ATTR_GSSAPI	10

struct ol_keyvalue {
	const char *		key;
	int			value;
};

static const struct ol_keyvalue deref_kv[] = {
	{"never", LDAP_DEREF_NEVER},
	{"searching", LDAP_DEREF_SEARCHING},
	{"finding", LDAP_DEREF_FINDING},
	{"always", LDAP_DEREF_ALWAYS},
	{NULL, 0}
};

static const struct ol_attribute {
	int			useronly;
	int			type;
	const char *	name;
	const void *	data;
	size_t		offset;
} attrs[] = {
	{0, ATTR_OPT_TV,	"TIMEOUT",		NULL,	LDAP_OPT_TIMEOUT},
	{0, ATTR_OPT_TV,	"NETWORK_TIMEOUT",	NULL,	LDAP_OPT_NETWORK_TIMEOUT},
	{0, ATTR_OPT_INT,	"VERSION",		NULL,	LDAP_OPT_PROTOCOL_VERSION},
	{0, ATTR_KV,		"DEREF",	deref_kv, /* or &deref_kv[0] */
		offsetof(struct ldapoptions, ldo_deref)},
	{0, ATTR_INT,		"SIZELIMIT",	NULL,
		offsetof(struct ldapoptions, ldo_sizelimit)},
	{0, ATTR_INT,		"TIMELIMIT",	NULL,
		offsetof(struct ldapoptions, ldo_timelimit)},
	{1, ATTR_STRING,	"BINDDN",		NULL,
		offsetof(struct ldapoptions, ldo_defbinddn)},
	{0, ATTR_STRING,	"BASE",			NULL,
		offsetof(struct ldapoptions, ldo_defbase)},
	{0, ATTR_INT,		"PORT",			NULL,		/* deprecated */
		offsetof(struct ldapoptions, ldo_defport)},
	{0, ATTR_OPTION,	"HOST",			NULL,	LDAP_OPT_HOST_NAME}, /* deprecated */
	{0, ATTR_OPTION,	"URI",			NULL,	LDAP_OPT_URI}, /* replaces HOST/PORT */
	{0, ATTR_BOOL,		"REFERRALS",	NULL,	LDAP_BOOL_REFERRALS},
#if 0
	/* This should only be allowed via ldap_set_option(3) */
	{0, ATTR_BOOL,		"RESTART",		NULL,	LDAP_BOOL_RESTART},
#endif

#ifdef HAVE_CYRUS_SASL
	{0, ATTR_STRING,	"SASL_MECH",		NULL,
		offsetof(struct ldapoptions, ldo_def_sasl_mech)},
	{0, ATTR_STRING,	"SASL_REALM",		NULL,
		offsetof(struct ldapoptions, ldo_def_sasl_realm)},
	{1, ATTR_STRING,	"SASL_AUTHCID",		NULL,
		offsetof(struct ldapoptions, ldo_def_sasl_authcid)},
	{1, ATTR_STRING,	"SASL_AUTHZID",		NULL,
		offsetof(struct ldapoptions, ldo_def_sasl_authzid)},
	{0, ATTR_SASL,		"SASL_SECPROPS",	NULL,	LDAP_OPT_X_SASL_SECPROPS},
	{0, ATTR_BOOL,		"SASL_NOCANON",	NULL,	LDAP_BOOL_SASL_NOCANON},
#endif

#ifdef HAVE_GSSAPI
	{0, ATTR_GSSAPI,"GSSAPI_SIGN",			NULL,	LDAP_OPT_SIGN},
	{0, ATTR_GSSAPI,"GSSAPI_ENCRYPT",		NULL,	LDAP_OPT_ENCRYPT},
	{0, ATTR_GSSAPI,"GSSAPI_ALLOW_REMOTE_PRINCIPAL",NULL,	LDAP_OPT_X_GSSAPI_ALLOW_REMOTE_PRINCIPAL},
#endif

#ifdef HAVE_TLS
	{1, ATTR_TLS,	"TLS_CERT",			NULL,	LDAP_OPT_X_TLS_CERTFILE},
	{1, ATTR_TLS,	"TLS_KEY",			NULL,	LDAP_OPT_X_TLS_KEYFILE},
  	{0, ATTR_TLS,	"TLS_CACERT",		NULL,	LDAP_OPT_X_TLS_CACERTFILE},
  	{0, ATTR_TLS,	"TLS_CACERTDIR",	NULL,	LDAP_OPT_X_TLS_CACERTDIR},
  	{0, ATTR_TLS,	"TLS_REQCERT",		NULL,	LDAP_OPT_X_TLS_REQUIRE_CERT},
	{0, ATTR_TLS,	"TLS_RANDFILE",		NULL,	LDAP_OPT_X_TLS_RANDOM_FILE},
	{0, ATTR_TLS,	"TLS_CIPHER_SUITE",	NULL,	LDAP_OPT_X_TLS_CIPHER_SUITE},
	{0, ATTR_TLS,	"TLS_PROTOCOL_MIN",	NULL,	LDAP_OPT_X_TLS_PROTOCOL_MIN},

#ifdef HAVE_OPENSSL_CRL
	{0, ATTR_TLS,	"TLS_CRLCHECK",		NULL,	LDAP_OPT_X_TLS_CRLCHECK},
#endif
#ifdef HAVE_GNUTLS
	{0, ATTR_TLS,	"TLS_CRLFILE",			NULL,	LDAP_OPT_X_TLS_CRLFILE},
#endif
        
#endif

	{0, ATTR_NONE,		NULL,		NULL,	0}
};

#define MAX_LDAP_ATTR_LEN  sizeof("GSSAPI_ALLOW_REMOTE_PRINCIPAL")
#define MAX_LDAP_ENV_PREFIX_LEN 8

static void openldap_ldap_init_w_conf(
	const char *file, int userconf )
{
	char linebuf[ AC_LINE_MAX ];
	FILE *fp;
	int i;
	char *cmd, *opt;
	char *start, *end;
	struct ldapoptions *gopts;

	if ((gopts = LDAP_INT_GLOBAL_OPT()) == NULL) {
		return;			/* Could not allocate mem for global options */
	}

	if (file == NULL) {
		/* no file name */
		return;
	}

	Debug(LDAP_DEBUG_TRACE, "ldap_init: trying %s\n", file, 0, 0);

	fp = fopen(file, "r");
	if(fp == NULL) {
		/* could not open file */
		return;
	}

	Debug(LDAP_DEBUG_TRACE, "ldap_init: using %s\n", file, 0, 0);

	while((start = fgets(linebuf, sizeof(linebuf), fp)) != NULL) {
		/* skip lines starting with '#' */
		if(*start == '#') continue;

		/* trim leading white space */
		while((*start != '\0') && isspace((unsigned char) *start))
			start++;

		/* anything left? */
		if(*start == '\0') continue;

		/* trim trailing white space */
		end = &start[strlen(start)-1];
		while(isspace((unsigned char)*end)) end--;
		end[1] = '\0';

		/* anything left? */
		if(*start == '\0') continue;
		

		/* parse the command */
		cmd=start;
		while((*start != '\0') && !isspace((unsigned char)*start)) {
			start++;
		}
		if(*start == '\0') {
			/* command has no argument */
			continue;
		} 

		*start++ = '\0';

		/* we must have some whitespace to skip */
		while(isspace((unsigned char)*start)) start++;
		opt = start;

		for(i=0; attrs[i].type != ATTR_NONE; i++) {
			void *p;

			if( !userconf && attrs[i].useronly ) {
				continue;
			}

			if(strcasecmp(cmd, attrs[i].name) != 0) {
				continue;
			}

			switch(attrs[i].type) {
			case ATTR_BOOL:
				if((strcasecmp(opt, "on") == 0) 
					|| (strcasecmp(opt, "yes") == 0)
					|| (strcasecmp(opt, "true") == 0))
				{
					LDAP_BOOL_SET(gopts, attrs[i].offset);

				} else {
					LDAP_BOOL_CLR(gopts, attrs[i].offset);
				}

				break;

			case ATTR_INT: {
				char *next;
				long l;
				p = &((char *) gopts)[attrs[i].offset];
				l = strtol( opt, &next, 10 );
				if ( next != opt && next[ 0 ] == '\0' ) {
					* (int*) p = l;
				}
				} break;

			case ATTR_KV: {
					const struct ol_keyvalue *kv;

					for(kv = attrs[i].data;
						kv->key != NULL;
						kv++) {

						if(strcasecmp(opt, kv->key) == 0) {
							p = &((char *) gopts)[attrs[i].offset];
							* (int*) p = kv->value;
							break;
						}
					}
				} break;

			case ATTR_STRING:
				p = &((char *) gopts)[attrs[i].offset];
				if (* (char**) p != NULL) LDAP_FREE(* (char**) p);
				* (char**) p = LDAP_STRDUP(opt);
				break;
			case ATTR_OPTION:
				ldap_set_option( NULL, attrs[i].offset, opt );
				break;
			case ATTR_SASL:
#ifdef HAVE_CYRUS_SASL
			   	ldap_int_sasl_config( gopts, attrs[i].offset, opt );
#endif
				break;
			case ATTR_GSSAPI:
#ifdef HAVE_GSSAPI
				ldap_int_gssapi_config( gopts, attrs[i].offset, opt );
#endif
				break;
			case ATTR_TLS:
#ifdef HAVE_TLS
			   	ldap_int_tls_config( NULL, attrs[i].offset, opt );
#endif
				break;
			case ATTR_OPT_TV: {
				struct timeval tv;
				char *next;
				tv.tv_usec = 0;
				tv.tv_sec = strtol( opt, &next, 10 );
				if ( next != opt && next[ 0 ] == '\0' && tv.tv_sec > 0 ) {
					(void)ldap_set_option( NULL, attrs[i].offset, (const void *)&tv );
				}
				} break;
			case ATTR_OPT_INT: {
				long l;
				char *next;
				l = strtol( opt, &next, 10 );
				if ( next != opt && next[ 0 ] == '\0' && l > 0 && (long)((int)l) == l ) {
					int v = (int)l;
					(void)ldap_set_option( NULL, attrs[i].offset, (const void *)&v );
				}
				} break;
			}

			break;
		}
	}

	fclose(fp);
}

static void openldap_ldap_init_w_sysconf(const char *file)
{
	openldap_ldap_init_w_conf( file, 0 );
}

static void openldap_ldap_init_w_userconf(const char *file)
{
	char *home;
	char *path = NULL;

	if (file == NULL) {
		/* no file name */
		return;
	}

	home = getenv("HOME");

	if (home != NULL) {
		Debug(LDAP_DEBUG_TRACE, "ldap_init: HOME env is %s\n",
		      home, 0, 0);
		path = LDAP_MALLOC(strlen(home) + strlen(file) + sizeof( LDAP_DIRSEP "."));
	} else {
		Debug(LDAP_DEBUG_TRACE, "ldap_init: HOME env is NULL\n",
		      0, 0, 0);
	}

	if(home != NULL && path != NULL) {
		/* we assume UNIX path syntax is used... */

		/* try ~/file */
		sprintf(path, "%s" LDAP_DIRSEP "%s", home, file);
		openldap_ldap_init_w_conf(path, 1);

		/* try ~/.file */
		sprintf(path, "%s" LDAP_DIRSEP ".%s", home, file);
		openldap_ldap_init_w_conf(path, 1);
	}

	if(path != NULL) {
		LDAP_FREE(path);
	}

	/* try file */
	openldap_ldap_init_w_conf(file, 1);
}

static void openldap_ldap_init_w_env(
		struct ldapoptions *gopts,
		const char *prefix)
{
	char buf[MAX_LDAP_ATTR_LEN+MAX_LDAP_ENV_PREFIX_LEN];
	int len;
	int i;
	void *p;
	char *value;

	if (prefix == NULL) {
		prefix = LDAP_ENV_PREFIX;
	}

	strncpy(buf, prefix, MAX_LDAP_ENV_PREFIX_LEN);
	buf[MAX_LDAP_ENV_PREFIX_LEN] = '\0';
	len = strlen(buf);

	for(i=0; attrs[i].type != ATTR_NONE; i++) {
		strcpy(&buf[len], attrs[i].name);
		value = getenv(buf);

		if(value == NULL) {
			continue;
		}

		switch(attrs[i].type) {
		case ATTR_BOOL:
			if((strcasecmp(value, "on") == 0) 
				|| (strcasecmp(value, "yes") == 0)
				|| (strcasecmp(value, "true") == 0))
			{
				LDAP_BOOL_SET(gopts, attrs[i].offset);

			} else {
				LDAP_BOOL_CLR(gopts, attrs[i].offset);
			}
			break;

		case ATTR_INT:
			p = &((char *) gopts)[attrs[i].offset];
			* (int*) p = atoi(value);
			break;

		case ATTR_KV: {
				const struct ol_keyvalue *kv;

				for(kv = attrs[i].data;
					kv->key != NULL;
					kv++) {

					if(strcasecmp(value, kv->key) == 0) {
						p = &((char *) gopts)[attrs[i].offset];
						* (int*) p = kv->value;
						break;
					}
				}
			} break;

		case ATTR_STRING:
			p = &((char *) gopts)[attrs[i].offset];
			if (* (char**) p != NULL) LDAP_FREE(* (char**) p);
			if (*value == '\0') {
				* (char**) p = NULL;
			} else {
				* (char**) p = LDAP_STRDUP(value);
			}
			break;
		case ATTR_OPTION:
			ldap_set_option( NULL, attrs[i].offset, value );
			break;
		case ATTR_SASL:
#ifdef HAVE_CYRUS_SASL
		   	ldap_int_sasl_config( gopts, attrs[i].offset, value );
#endif			 	
		   	break;
		case ATTR_GSSAPI:
#ifdef HAVE_GSSAPI
			ldap_int_gssapi_config( gopts, attrs[i].offset, value );
#endif
			break;
		case ATTR_TLS:
#ifdef HAVE_TLS
		   	ldap_int_tls_config( NULL, attrs[i].offset, value );
#endif			 	
		   	break;
		case ATTR_OPT_TV: {
			struct timeval tv;
			char *next;
			tv.tv_usec = 0;
			tv.tv_sec = strtol( value, &next, 10 );
			if ( next != value && next[ 0 ] == '\0' && tv.tv_sec > 0 ) {
				(void)ldap_set_option( NULL, attrs[i].offset, (const void *)&tv );
			}
			} break;
		case ATTR_OPT_INT: {
			long l;
			char *next;
			l = strtol( value, &next, 10 );
			if ( next != value && next[ 0 ] == '\0' && l > 0 && (long)((int)l) == l ) {
				int v = (int)l;
				(void)ldap_set_option( NULL, attrs[i].offset, (const void *)&v );
			}
			} break;
		}
	}
}

#if defined(__GNUC__)
/* Declare this function as a destructor so that it will automatically be
 * invoked either at program exit (if libldap is a static library) or
 * at unload time (if libldap is a dynamic library).
 *
 * Sorry, don't know how to handle this for non-GCC environments.
 */
static void ldap_int_destroy_global_options(void)
	__attribute__ ((destructor));
#endif

static void
ldap_int_destroy_global_options(void)
{
	struct ldapoptions *gopts = LDAP_INT_GLOBAL_OPT();

	if ( gopts == NULL )
		return;

	gopts->ldo_valid = LDAP_UNINITIALIZED;

	if ( gopts->ldo_defludp ) {
		ldap_free_urllist( gopts->ldo_defludp );
		gopts->ldo_defludp = NULL;
	}
#if defined(HAVE_WINSOCK) || defined(HAVE_WINSOCK2)
	WSACleanup( );
#endif

#if defined(HAVE_TLS) || defined(HAVE_CYRUS_SASL)
	if ( ldap_int_hostname ) {
		LDAP_FREE( ldap_int_hostname );
		ldap_int_hostname = NULL;
	}
#endif
#ifdef HAVE_CYRUS_SASL
	if ( gopts->ldo_def_sasl_authcid ) {
		LDAP_FREE( gopts->ldo_def_sasl_authcid );
		gopts->ldo_def_sasl_authcid = NULL;
	}
#endif
#ifdef HAVE_TLS
	ldap_int_tls_destroy( gopts );
#endif
}

/* 
 * Initialize the global options structure with default values.
 */
void ldap_int_initialize_global_options( struct ldapoptions *gopts, int *dbglvl )
{
#ifdef LDAP_R_COMPILE
	LDAP_PVT_MUTEX_FIRSTCREATE(gopts->ldo_mutex);
#endif
	LDAP_MUTEX_LOCK( &gopts->ldo_mutex );
	if (gopts->ldo_valid == LDAP_INITIALIZED) {
		/* someone else got here first */
		LDAP_MUTEX_UNLOCK( &gopts->ldo_mutex );
		return;
	}
	if (dbglvl)
	    gopts->ldo_debug = *dbglvl;
	else
		gopts->ldo_debug = 0;

	gopts->ldo_version   = LDAP_VERSION2;
	gopts->ldo_deref     = LDAP_DEREF_NEVER;
	gopts->ldo_timelimit = LDAP_NO_LIMIT;
	gopts->ldo_sizelimit = LDAP_NO_LIMIT;

	gopts->ldo_tm_api.tv_sec = -1;
	gopts->ldo_tm_net.tv_sec = -1;

	/* ldo_defludp will be freed by the termination handler
	 */
	ldap_url_parselist(&gopts->ldo_defludp, "ldap://localhost/");
	gopts->ldo_defport = LDAP_PORT;
#if !defined(__GNUC__) && !defined(PIC)
	/* Do this only for a static library, and only if we can't
	 * arrange for it to be executed as a library destructor
	 */
	atexit(ldap_int_destroy_global_options);
#endif

	gopts->ldo_refhoplimit = LDAP_DEFAULT_REFHOPLIMIT;
	gopts->ldo_rebind_proc = NULL;
	gopts->ldo_rebind_params = NULL;

	LDAP_BOOL_ZERO(gopts);

	LDAP_BOOL_SET(gopts, LDAP_BOOL_REFERRALS);

#ifdef LDAP_CONNECTIONLESS
	gopts->ldo_peer = NULL;
	gopts->ldo_cldapdn = NULL;
	gopts->ldo_is_udp = 0;
#endif

#ifdef HAVE_CYRUS_SASL
	gopts->ldo_def_sasl_mech = NULL;
	gopts->ldo_def_sasl_realm = NULL;
	gopts->ldo_def_sasl_authcid = NULL;
	gopts->ldo_def_sasl_authzid = NULL;

	memset( &gopts->ldo_sasl_secprops,
		'\0', sizeof(gopts->ldo_sasl_secprops) );

	gopts->ldo_sasl_secprops.max_ssf = INT_MAX;
	gopts->ldo_sasl_secprops.maxbufsize = SASL_MAX_BUFF_SIZE;
	gopts->ldo_sasl_secprops.security_flags =
		SASL_SEC_NOPLAINTEXT | SASL_SEC_NOANONYMOUS;
#endif

#ifdef HAVE_TLS
	gopts->ldo_tls_connect_cb = NULL;
	gopts->ldo_tls_connect_arg = NULL;
	gopts->ldo_tls_require_cert = LDAP_OPT_X_TLS_DEMAND;
#endif
	gopts->ldo_keepalive_probes = 0;
	gopts->ldo_keepalive_interval = 0;
	gopts->ldo_keepalive_idle = 0;

	gopts->ldo_valid = LDAP_INITIALIZED;
	LDAP_MUTEX_UNLOCK( &gopts->ldo_mutex );
   	return;
}

#if defined(HAVE_TLS) || defined(HAVE_CYRUS_SASL)
char * ldap_int_hostname = NULL;
#endif

void ldap_int_initialize( struct ldapoptions *gopts, int *dbglvl )
{
	if ( gopts->ldo_valid == LDAP_INITIALIZED ) {
		return;
	}

	ldap_int_error_init();

	ldap_int_utils_init();

#ifdef HAVE_WINSOCK2
{	WORD wVersionRequested;
	WSADATA wsaData;
 
	wVersionRequested = MAKEWORD( 2, 0 );
	if ( WSAStartup( wVersionRequested, &wsaData ) != 0 ) {
		/* Tell the user that we couldn't find a usable */
		/* WinSock DLL.                                  */
		return;
	}
 
	/* Confirm that the WinSock DLL supports 2.0.*/
	/* Note that if the DLL supports versions greater    */
	/* than 2.0 in addition to 2.0, it will still return */
	/* 2.0 in wVersion since that is the version we      */
	/* requested.                                        */
 
	if ( LOBYTE( wsaData.wVersion ) != 2 ||
		HIBYTE( wsaData.wVersion ) != 0 )
	{
	    /* Tell the user that we couldn't find a usable */
	    /* WinSock DLL.                                  */
	    WSACleanup( );
	    return; 
	}
}	/* The WinSock DLL is acceptable. Proceed. */
#elif defined(HAVE_WINSOCK)
{	WSADATA wsaData;
	if ( WSAStartup( 0x0101, &wsaData ) != 0 ) {
	    return;
	}
}
#endif

#if defined(HAVE_TLS) || defined(HAVE_CYRUS_SASL)
	LDAP_MUTEX_LOCK( &ldap_int_hostname_mutex );
	{
		char	*name = ldap_int_hostname;

		ldap_int_hostname = ldap_pvt_get_fqdn( name );

		if ( name != NULL && name != ldap_int_hostname ) {
			LDAP_FREE( name );
		}
	}
	LDAP_MUTEX_UNLOCK( &ldap_int_hostname_mutex );
#endif

#ifndef HAVE_POLL
	if ( ldap_int_tblsize == 0 ) ldap_int_ip_init();
#endif

#ifdef HAVE_CYRUS_SASL
	if ( ldap_int_sasl_init() != 0 ) {
		return;
	}
#endif

	ldap_int_initialize_global_options(gopts, dbglvl);

	if( getenv("LDAPNOINIT") != NULL ) {
		return;
	}

#ifdef HAVE_CYRUS_SASL
	{
		/* set authentication identity to current user name */
		char *user = getenv("USER");

		if( user == NULL ) user = getenv("USERNAME");
		if( user == NULL ) user = getenv("LOGNAME");

		if( user != NULL ) {
			gopts->ldo_def_sasl_authcid = LDAP_STRDUP( user );
		}
    }
#endif

	openldap_ldap_init_w_sysconf(LDAP_CONF_FILE);

#ifdef HAVE_GETEUID
	if ( geteuid() != getuid() )
		return;
#endif

	openldap_ldap_init_w_userconf(LDAP_USERRC_FILE);

	{
		char *altfile = getenv(LDAP_ENV_PREFIX "CONF");

		if( altfile != NULL ) {
			Debug(LDAP_DEBUG_TRACE, "ldap_init: %s env is %s\n",
			      LDAP_ENV_PREFIX "CONF", altfile, 0);
			openldap_ldap_init_w_sysconf( altfile );
		}
		else
			Debug(LDAP_DEBUG_TRACE, "ldap_init: %s env is NULL\n",
			      LDAP_ENV_PREFIX "CONF", 0, 0);
	}

	{
		char *altfile = getenv(LDAP_ENV_PREFIX "RC");

		if( altfile != NULL ) {
			Debug(LDAP_DEBUG_TRACE, "ldap_init: %s env is %s\n",
			      LDAP_ENV_PREFIX "RC", altfile, 0);
			openldap_ldap_init_w_userconf( altfile );
		}
		else
			Debug(LDAP_DEBUG_TRACE, "ldap_init: %s env is NULL\n",
			      LDAP_ENV_PREFIX "RC", 0, 0);
	}

	openldap_ldap_init_w_env(gopts, NULL);
}