openldap/libraries/libldap/open.c
Kurt Zeilenga a3ac3be6a7 Added lber_get/set_option. Removed lber_debug/ldap_debug.
Updated other codes as needed.
1998-12-22 01:34:01 +00:00

268 lines
6.4 KiB
C

/*
* Copyright (c) 1995 Regents of the University of Michigan.
* All rights reserved.
*
* open.c
*/
#include "portable.h"
#ifndef lint
static char copyright[] = "@(#) Copyright (c) 1995 Regents of the University of Michigan.\nAll rights reserved.\n";
#endif
#include <stdio.h>
#include <stdlib.h>
#include <ac/socket.h>
#include <ac/string.h>
#include <ac/time.h>
#ifdef HAVE_SYS_PARAM_H
#include <sys/param.h>
#endif
#include "ldap-int.h"
/*
* ldap_open - initialize and connect to an ldap server. A magic cookie to
* be used for future communication is returned on success, NULL on failure.
* "host" may be a space-separated list of hosts or IP addresses
*
* Example:
* LDAP *ld;
* ld = ldap_open( hostname, port );
*/
LDAP *
ldap_open( char *host, int port )
{
LDAP *ld;
#ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS
LDAPServer *srv;
#endif /* LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS */
Debug( LDAP_DEBUG_TRACE, "ldap_open\n", 0, 0, 0 );
if (( ld = ldap_init( host, port )) == NULL ) {
return( NULL );
}
/* we'll assume we're talking version 2 for now */
ld->ld_version = LDAP_VERSION2;
#ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS
if (( srv = (LDAPServer *)calloc( 1, sizeof( LDAPServer ))) ==
NULL || ( ld->ld_defhost != NULL && ( srv->lsrv_host =
ldap_strdup( ld->ld_defhost )) == NULL )) {
ldap_ld_free( ld, 0 );
return( NULL );
}
srv->lsrv_port = ld->ld_defport;
if (( ld->ld_defconn = ldap_new_connection( ld, &srv, 1,1,0 )) == NULL ) {
if ( ld->ld_defhost != NULL ) free( srv->lsrv_host );
free( (char *)srv );
ldap_ld_free( ld, 0 );
return( NULL );
}
++ld->ld_defconn->lconn_refcnt; /* so it never gets closed/freed */
#else /* LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS */
if ( open_ldap_connection( ld, &ld->ld_sb, ld->ld_defhost,
ld->ld_defport, &ld->ld_host, 0 ) < 0 ) {
ldap_ld_free( ld, 0 );
return( NULL );
}
#endif /* LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS */
Debug( LDAP_DEBUG_TRACE, "ldap_open successful, ld_host is %s\n",
( ld->ld_host == NULL ) ? "(null)" : ld->ld_host, 0, 0 );
return( ld );
}
/*
* ldap_init - initialize the LDAP library. A magic cookie to be used for
* future communication is returned on success, NULL on failure.
* "host" may be a space-separated list of hosts or IP addresses
*
* Example:
* LDAP *ld;
* ld = ldap_open( host, port );
*/
LDAP *
ldap_init( char *defhost, int defport )
{
LDAP *ld;
if(!openldap_ldap_initialized) {
openldap_ldap_initialize();
}
Debug( LDAP_DEBUG_TRACE, "ldap_init\n", 0, 0, 0 );
#ifdef HAVE_WINSOCK2
{ WORD wVersionRequested;
WSADATA wsaData;
int err;
wVersionRequested = MAKEWORD( 2, 0 );
err = WSAStartup( wVersionRequested, &wsaData );
if ( err != 0 ) {
/* Tell the user that we couldn't find a usable */
/* WinSock DLL. */
return NULL;
}
/* 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 NULL;
}
} /* The WinSock DLL is acceptable. Proceed. */
#elif HAVE_WINSOCK
if ( WSAStartup( 0x0101, &wsadata ) != 0 ) {
return( NULL );
}
#endif
if ( (ld = (LDAP *) calloc( 1, sizeof(LDAP) )) == NULL ) {
WSACleanup( );
return( NULL );
}
/* copy the global options */
memcpy(&ld->ld_options, &openldap_ldap_global_options,
sizeof(ld->ld_options));
/* but not pointers to malloc'ed strings */
ld->ld_options.ldo_defbase = NULL;
ld->ld_options.ldo_defhost = NULL;
if ( defhost != NULL ) {
ld->ld_options.ldo_defhost = ldap_strdup( defhost );
} else {
ld->ld_options.ldo_defhost = ldap_strdup(
openldap_ldap_global_options.ldo_defhost);
}
if ( ld->ld_options.ldo_defhost == NULL ) {
free( (char*)ld );
WSACleanup( );
return( NULL );
}
if ( openldap_ldap_global_options.ldo_defbase != NULL ) {
ld->ld_options.ldo_defbase = ldap_strdup(
openldap_ldap_global_options.ldo_defbase);
}
#ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS
if (( ld->ld_selectinfo = ldap_new_select_info()) == NULL ) {
free( (char*) ld->ld_options.ldo_defhost );
if ( ld->ld_options.ldo_defbase == NULL ) {
free( (char*) ld->ld_options.ldo_defbase );
}
free( (char*) ld );
WSACleanup( );
return( NULL );
}
#endif
if(defport != 0) {
ld->ld_defport = defport;
}
ld->ld_lberoptions = LBER_USE_DER;
#if defined( STR_TRANSLATION ) && defined( LDAP_DEFAULT_CHARSET )
ld->ld_lberoptions |= LBER_TRANSLATE_STRINGS;
#if LDAP_CHARSET_8859 == LDAP_DEFAULT_CHARSET
ldap_set_string_translators( ld, ldap_8859_to_t61, ldap_t61_to_8859 );
#endif /* LDAP_CHARSET_8859 == LDAP_DEFAULT_CHARSET */
#endif /* STR_TRANSLATION && LDAP_DEFAULT_CHARSET */
return( ld );
}
int
open_ldap_connection( LDAP *ld, Sockbuf *sb, char *host, int defport,
char **krbinstancep, int async )
{
int rc = -1;
int port;
char *p, *q, *r;
char *curhost, hostname[ 2*MAXHOSTNAMELEN ];
Debug( LDAP_DEBUG_TRACE, "open_ldap_connection\n", 0, 0, 0 );
defport = htons( (short) defport );
if ( host != NULL ) {
for ( p = host; p != NULL && *p != '\0'; p = q ) {
if (( q = strchr( p, ' ' )) != NULL ) {
strncpy( hostname, p, q - p );
hostname[ q - p ] = '\0';
curhost = hostname;
while ( *q == ' ' ) {
++q;
}
} else {
curhost = p; /* avoid copy if possible */
q = NULL;
}
if (( r = strchr( curhost, ':' )) != NULL ) {
if ( curhost != hostname ) {
strcpy( hostname, curhost ); /* now copy */
r = hostname + ( r - curhost );
curhost = hostname;
}
*r++ = '\0';
port = htons( (short) atoi( r ) );
} else {
port = defport;
}
if (( rc = ldap_connect_to_host( sb, curhost, 0L,
port, async )) != -1 ) {
break;
}
}
} else {
rc = ldap_connect_to_host( sb, NULL, htonl( INADDR_LOOPBACK ),
defport, async );
}
if ( rc == -1 ) {
return( rc );
}
if ( krbinstancep != NULL ) {
#ifdef HAVE_KERBEROS
if (( *krbinstancep = ldap_host_connected_to( sb )) != NULL &&
( p = strchr( *krbinstancep, '.' )) != NULL ) {
*p = '\0';
}
#else /* HAVE_KERBEROS */
krbinstancep = NULL;
#endif /* HAVE_KERBEROS */
}
return( 0 );
}