Adding upstream version 2.4.57+dfsg.upstream/2.4.57+dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 728 insertions, 0 deletions

diff --git a/libraries/libldap/init.c b/libraries/libldap/init.c
new file mode 100644
index 0000000..182ef7d
--- /dev/null
+++ b/libraries/libldap/init.c
@@ -0,0 +1,728 @@
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1998-2021 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_REQSAN",		NULL,	LDAP_OPT_X_TLS_REQUIRE_SAN},
+	{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},
+	{0, ATTR_TLS,	"TLS_ECNAME",		NULL,	LDAP_OPT_X_TLS_ECNAME},
+
+#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 )
+{
+	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;
+	gopts->ldo_tls_require_san = LDAP_OPT_X_TLS_ALLOW;
+#endif
+	gopts->ldo_keepalive_probes = 0;
+	gopts->ldo_keepalive_interval = 0;
+	gopts->ldo_keepalive_idle = 0;
+
+	gopts->ldo_valid = LDAP_INITIALIZED;
+   	return;
+}
+
+#if defined(HAVE_TLS) || defined(HAVE_CYRUS_SASL)
+char * ldap_int_hostname = NULL;
+#endif
+
+void ldap_int_initialize( struct ldapoptions *gopts, int *dbglvl )
+{
+#ifdef LDAP_R_COMPILE
+	static ldap_pvt_thread_mutex_t init_mutex;
+	LDAP_PVT_MUTEX_FIRSTCREATE( init_mutex );
+
+	LDAP_MUTEX_LOCK( &init_mutex );
+#endif
+	if ( gopts->ldo_valid == LDAP_INITIALIZED ) {
+		/* someone else got here first */
+		goto done;
+	}
+
+	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.                                  */
+		goto done;
+	}
+ 
+	/* 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( );
+	    goto done;
+	}
+}	/* The WinSock DLL is acceptable. Proceed. */
+#elif defined(HAVE_WINSOCK)
+{	WSADATA wsaData;
+	if ( WSAStartup( 0x0101, &wsaData ) != 0 ) {
+	    goto done;
+	}
+}
+#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 ) {
+		goto done;
+	}
+#endif
+
+	ldap_int_initialize_global_options(gopts, dbglvl);
+
+	if( getenv("LDAPNOINIT") != NULL ) {
+		goto done;
+	}
+
+#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() )
+		goto done;
+#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);
+
+done:;
+#ifdef LDAP_R_COMPILE
+	LDAP_MUTEX_UNLOCK( &init_mutex );
+#endif
+}