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-rw-r--r--ldap/c-sdk/libraries/libldap/cldap.c585
1 files changed, 585 insertions, 0 deletions
diff --git a/ldap/c-sdk/libraries/libldap/cldap.c b/ldap/c-sdk/libraries/libldap/cldap.c
new file mode 100644
index 000000000..829d34c28
--- /dev/null
+++ b/ldap/c-sdk/libraries/libldap/cldap.c
@@ -0,0 +1,585 @@
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is Mozilla Communicator client code, released
+ * March 31, 1998.
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communications Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 1998-1999
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either of the GNU General Public License Version 2 or later (the "GPL"),
+ * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+/*
+ * Copyright (c) 1990, 1994 Regents of the University of Michigan.
+ * All rights reserved.
+ */
+/*
+ * cldap.c - synchronous, retrying interface to the cldap protocol
+ */
+
+
+#ifdef CLDAP
+
+XXX not MT-safe XXX
+
+#ifndef lint
+static char copyright[] = "@(#) Copyright (c) 1990, 1994 Regents of the University of Michigan.\nAll rights reserved.\n";
+#endif
+
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#ifdef macintosh
+#include <stdlib.h>
+#include "macos.h"
+#else /* macintosh */
+#ifdef DOS
+#include "msdos.h"
+#else /* DOS */
+#ifdef _WINDOWS
+#include <windows.h>
+#else /* _WINDOWS */
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <netdb.h>
+#endif /* _WINDOWS */
+#endif /* DOS */
+#endif /* macintosh */
+
+#include "ldap-int.h"
+
+#define DEF_CLDAP_TIMEOUT 3
+#define DEF_CLDAP_TRIES 4
+
+#ifndef INADDR_LOOPBACK
+#define INADDR_LOOPBACK ((unsigned long) 0x7f000001)
+#endif
+
+
+struct cldap_retinfo {
+ int cri_maxtries;
+ int cri_try;
+ int cri_useaddr;
+ long cri_timeout;
+};
+
+#ifdef NEEDPROTOS
+static int add_addr( LDAP *ld, struct sockaddr *sap );
+static int cldap_result( LDAP *ld, int msgid, LDAPMessage **res,
+ struct cldap_retinfo *crip, char *base );
+static int cldap_parsemsg( LDAP *ld, int msgid, BerElement *ber,
+ LDAPMessage **res, char *base );
+#else /* NEEDPROTOS */
+static int add_addr();
+static int cldap_result();
+static int cldap_parsemsg();
+#endif /* NEEDPROTOS */
+
+/*
+ * cldap_open - initialize and connect to an ldap server. A magic cookie to
+ * be used for future communication is returned on success, NULL on failure.
+ *
+ * Example:
+ * LDAP *ld;
+ * ld = cldap_open( hostname, port );
+ */
+
+LDAP *
+cldap_open( char *host, int port )
+{
+ int s;
+ ldap_x_in_addr_t address;
+ struct sockaddr_in sock;
+ struct hostent *hp;
+ LDAP *ld;
+ char *p;
+ int i;
+
+ LDAPDebug( LDAP_DEBUG_TRACE, "cldap_open\n", 0, 0, 0 );
+
+ if ( port == 0 ) {
+ port = LDAP_PORT;
+ }
+
+ if ( (s = socket( AF_INET, SOCK_DGRAM, 0 )) < 0 ) {
+ return( NULL );
+ }
+
+ sock.sin_addr.s_addr = 0;
+ sock.sin_family = AF_INET;
+ sock.sin_port = 0;
+ if ( bind(s, (struct sockaddr *) &sock, sizeof(sock)) < 0) {
+ close( s );
+ return( NULL );
+ }
+
+ if (( ld = ldap_init( host, port )) == NULL ) {
+ close( s );
+ return( NULL );
+ }
+ if ( (ld->ld_sbp->sb_fromaddr = (void *)NSLDAPI_CALLOC( 1,
+ sizeof( struct sockaddr ))) == NULL ) {
+ NSLDAPI_FREE( ld );
+ close( s );
+ return( NULL );
+ }
+ ld->ld_sbp->sb_sd = s;
+ ld->ld_sbp->sb_naddr = 0;
+ ld->ld_version = LDAP_VERSION2;
+
+ sock.sin_family = AF_INET;
+ sock.sin_port = htons( port );
+
+ /*
+ * 'host' may be a space-separated list.
+ */
+ if ( host != NULL ) {
+ for ( ; host != NULL; host = p ) {
+ if (( p = strchr( host, ' ' )) != NULL ) {
+ for (*p++ = '\0'; *p == ' '; p++) {
+ ;
+ }
+ }
+
+ if ( (address = inet_addr( host )) == -1 ) {
+/* XXXmcs: need to use DNS callbacks here XXX */
+XXX
+ if ( (hp = gethostbyname( host )) == NULL ) {
+ LDAP_SET_ERRNO( ld, EHOSTUNREACH );
+ continue;
+ }
+
+ for ( i = 0; hp->h_addr_list[ i ] != 0; ++i ) {
+ SAFEMEMCPY( (char *)&sock.sin_addr.s_addr,
+ (char *)hp->h_addr_list[ i ],
+ sizeof(sock.sin_addr.s_addr));
+ if ( add_addr( ld, (struct sockaddr *)&sock ) < 0 ) {
+ close( s );
+ NSLDAPI_FREE( ld );
+ return( NULL );
+ }
+ }
+
+ } else {
+ sock.sin_addr.s_addr = address;
+ if ( add_addr( ld, (struct sockaddr *)&sock ) < 0 ) {
+ close( s );
+ NSLDAPI_FREE( ld );
+ return( NULL );
+ }
+ }
+
+ if ( ld->ld_host == NULL ) {
+ ld->ld_host = nsldapi_strdup( host );
+ }
+ }
+
+ } else {
+ address = INADDR_LOOPBACK;
+ sock.sin_addr.s_addr = htonl( address );
+ if ( add_addr( ld, (struct sockaddr *)&sock ) < 0 ) {
+ close( s );
+ NSLDAPI_FREE( ld );
+ return( NULL );
+ }
+ }
+
+ if ( ld->ld_sbp->sb_addrs == NULL
+ || ( ld->ld_defconn = nsldapi_new_connection( ld, NULL, 1,0,0 )) == NULL ) {
+ NSLDAPI_FREE( ld );
+ return( NULL );
+ }
+
+ ld->ld_sbp->sb_useaddr = ld->ld_sbp->sb_addrs[ 0 ];
+ cldap_setretryinfo( ld, 0, 0 );
+
+#ifdef LDAP_DEBUG
+ putchar( '\n' );
+ for ( i = 0; i < ld->ld_sbp->sb_naddr; ++i ) {
+ LDAPDebug( LDAP_DEBUG_TRACE, "end of cldap_open address %d is %s\n",
+ i, inet_ntoa( ((struct sockaddr_in *)
+ ld->ld_sbp->sb_addrs[ i ])->sin_addr ), 0 );
+ }
+#endif
+
+ return( ld );
+}
+
+
+
+void
+cldap_close( LDAP *ld )
+{
+ ldap_ld_free( ld, NULL, NULL, 0 );
+}
+
+
+void
+cldap_setretryinfo( LDAP *ld, int tries, int timeout )
+{
+ ld->ld_cldaptries = ( tries <= 0 ) ? DEF_CLDAP_TRIES : tries;
+ ld->ld_cldaptimeout = ( timeout <= 0 ) ? DEF_CLDAP_TIMEOUT : timeout;
+}
+
+
+int
+cldap_search_s( LDAP *ld, char *base, int scope, char *filter, char **attrs,
+ int attrsonly, LDAPMessage **res, char *logdn )
+{
+ int ret, msgid;
+ struct cldap_retinfo cri;
+
+ *res = NULLMSG;
+
+ (void) memset( &cri, 0, sizeof( cri ));
+
+ if ( logdn != NULL ) {
+ ld->ld_cldapdn = logdn;
+ } else if ( ld->ld_cldapdn == NULL ) {
+ ld->ld_cldapdn = "";
+ }
+
+ do {
+ if ( cri.cri_try != 0 ) {
+ --ld->ld_msgid; /* use same id as before */
+ }
+ ld->ld_sbp->sb_useaddr = ld->ld_sbp->sb_addrs[ cri.cri_useaddr ];
+
+ LDAPDebug( LDAP_DEBUG_TRACE, "cldap_search_s try %d (to %s)\n",
+ cri.cri_try, inet_ntoa( ((struct sockaddr_in *)
+ ld->ld_sbp->sb_useaddr)->sin_addr ), 0 );
+
+ if ( (msgid = ldap_search( ld, base, scope, filter, attrs,
+ attrsonly )) == -1 ) {
+ return( LDAP_GET_LDERRNO( ld, NULL, NULL ) );
+ }
+#ifndef NO_CACHE
+ if ( ld->ld_cache != NULL && ld->ld_responses != NULL ) {
+ LDAPDebug( LDAP_DEBUG_TRACE, "cldap_search_s res from cache\n",
+ 0, 0, 0 );
+ *res = ld->ld_responses;
+ ld->ld_responses = ld->ld_responses->lm_next;
+ return( ldap_result2error( ld, *res, 0 ));
+ }
+#endif /* NO_CACHE */
+ ret = cldap_result( ld, msgid, res, &cri, base );
+ } while (ret == -1);
+
+ return( ret );
+}
+
+
+static int
+add_addr( LDAP *ld, struct sockaddr *sap )
+{
+ struct sockaddr *newsap, **addrs;
+
+ if (( newsap = (struct sockaddr *)NSLDAPI_MALLOC(
+ sizeof( struct sockaddr ))) == NULL ) {
+ LDAP_SET_LDERRNO( ld, LDAP_NO_MEMORY, NULL, NULL );
+ return( -1 );
+ }
+
+ if ( ld->ld_sbp->sb_naddr == 0 ) {
+ addrs = (struct sockaddr **)NSLDAPI_MALLOC( sizeof(struct sockaddr *));
+ } else {
+ addrs = (struct sockaddr **)NSLDAPI_REALLOC( ld->ld_sbp->sb_addrs,
+ ( ld->ld_sbp->sb_naddr + 1 ) * sizeof(struct sockaddr *));
+ }
+
+ if ( addrs == NULL ) {
+ NSLDAPI_FREE( newsap );
+ LDAP_SET_LDERRNO( ld, LDAP_NO_MEMORY, NULL, NULL );
+ return( -1 );
+ }
+
+ SAFEMEMCPY( (char *)newsap, (char *)sap, sizeof( struct sockaddr ));
+ addrs[ ld->ld_sbp->sb_naddr++ ] = newsap;
+ ld->ld_sbp->sb_addrs = (void **)addrs;
+ return( 0 );
+}
+
+
+static int
+cldap_result( LDAP *ld, int msgid, LDAPMessage **res,
+ struct cldap_retinfo *crip, char *base )
+{
+ Sockbuf *sb = ld->ld_sbp;
+ BerElement ber;
+ char *logdn;
+ int ret, fromaddr, i;
+ ber_int_t id;
+ struct timeval tv;
+
+ fromaddr = -1;
+
+ if ( crip->cri_try == 0 ) {
+ crip->cri_maxtries = ld->ld_cldaptries * sb->sb_naddr;
+ crip->cri_timeout = ld->ld_cldaptimeout;
+ crip->cri_useaddr = 0;
+ LDAPDebug( LDAP_DEBUG_TRACE, "cldap_result tries %d timeout %d\n",
+ ld->ld_cldaptries, ld->ld_cldaptimeout, 0 );
+ }
+
+ if ((tv.tv_sec = crip->cri_timeout / sb->sb_naddr) < 1 ) {
+ tv.tv_sec = 1;
+ }
+ tv.tv_usec = 0;
+
+ LDAPDebug( LDAP_DEBUG_TRACE,
+ "cldap_result waiting up to %d seconds for a response\n",
+ tv.tv_sec, 0, 0 );
+ ber_init_w_nullchar( &ber, 0 );
+ nsldapi_set_ber_options( ld, &ber );
+
+ if ( cldap_getmsg( ld, &tv, &ber ) == -1 ) {
+ ret = LDAP_GET_LDERRNO( ld, NULL, NULL );
+ LDAPDebug( LDAP_DEBUG_TRACE, "cldap_getmsg returned -1 (%d)\n",
+ ret, 0, 0 );
+ } else if ( LDAP_GET_LDERRNO( ld, NULL, NULL ) == LDAP_TIMEOUT ) {
+ LDAPDebug( LDAP_DEBUG_TRACE,
+ "cldap_result timed out\n", 0, 0, 0 );
+ /*
+ * It timed out; is it time to give up?
+ */
+ if ( ++crip->cri_try >= crip->cri_maxtries ) {
+ ret = LDAP_TIMEOUT;
+ --crip->cri_try;
+ } else {
+ if ( ++crip->cri_useaddr >= sb->sb_naddr ) {
+ /*
+ * new round: reset address to first one and
+ * double the timeout
+ */
+ crip->cri_useaddr = 0;
+ crip->cri_timeout <<= 1;
+ }
+ ret = -1;
+ }
+
+ } else {
+ /*
+ * Got a response. It should look like:
+ * { msgid, logdn, { searchresponse...}}
+ */
+ logdn = NULL;
+
+ if ( ber_scanf( &ber, "ia", &id, &logdn ) == LBER_ERROR ) {
+ NSLDAPI_FREE( ber.ber_buf ); /* gack! */
+ ret = LDAP_DECODING_ERROR;
+ LDAPDebug( LDAP_DEBUG_TRACE,
+ "cldap_result: ber_scanf returned LBER_ERROR (%d)\n",
+ ret, 0, 0 );
+ } else if ( id != msgid ) {
+ NSLDAPI_FREE( ber.ber_buf ); /* gack! */
+ LDAPDebug( LDAP_DEBUG_TRACE,
+ "cldap_result: looking for msgid %d; got %ld\n",
+ msgid, id, 0 );
+ ret = -1; /* ignore and keep looking */
+ } else {
+ /*
+ * got a result: determine which server it came from
+ * decode into ldap message chain
+ */
+ for ( fromaddr = 0; fromaddr < sb->sb_naddr; ++fromaddr ) {
+ if ( memcmp( &((struct sockaddr_in *)
+ sb->sb_addrs[ fromaddr ])->sin_addr,
+ &((struct sockaddr_in *)sb->sb_fromaddr)->sin_addr,
+ sizeof( struct in_addr )) == 0 ) {
+ break;
+ }
+ }
+ ret = cldap_parsemsg( ld, msgid, &ber, res, base );
+ NSLDAPI_FREE( ber.ber_buf ); /* gack! */
+ LDAPDebug( LDAP_DEBUG_TRACE,
+ "cldap_result got result (%d)\n", ret, 0, 0 );
+ }
+
+ if ( logdn != NULL ) {
+ NSLDAPI_FREE( logdn );
+ }
+ }
+
+
+ /*
+ * If we are giving up (successfully or otherwise) then
+ * abandon any outstanding requests.
+ */
+ if ( ret != -1 ) {
+ i = crip->cri_try;
+ if ( i >= sb->sb_naddr ) {
+ i = sb->sb_naddr - 1;
+ }
+
+ for ( ; i >= 0; --i ) {
+ if ( i == fromaddr ) {
+ continue;
+ }
+ sb->sb_useaddr = sb->sb_addrs[ i ];
+ LDAPDebug( LDAP_DEBUG_TRACE, "cldap_result abandoning id %d (to %s)\n",
+ msgid, inet_ntoa( ((struct sockaddr_in *)
+ sb->sb_useaddr)->sin_addr ), 0 );
+ (void) ldap_abandon( ld, msgid );
+ }
+ }
+
+ LDAP_SET_LDERRNO( ld, ret, NULL, NULL );
+ return( ret );
+}
+
+
+static int
+cldap_parsemsg( LDAP *ld, int msgid, BerElement *ber,
+ LDAPMessage **res, char *base )
+{
+ ber_tag_t tag;
+ ber_len_t len;
+ int baselen, slen, rc;
+ char *dn, *p, *cookie;
+ LDAPMessage *chain, *prev, *ldm;
+ struct berval *bv;
+
+ rc = LDAP_DECODING_ERROR; /* pessimistic */
+ ldm = chain = prev = NULLMSG;
+ baselen = ( base == NULL ) ? 0 : strlen( base );
+ bv = NULL;
+
+ for ( tag = ber_first_element( ber, &len, &cookie );
+ tag != LBER_ERROR && tag != LBER_END_OF_SEQOFSET
+ && rc != LDAP_SUCCESS;
+ tag = ber_next_element( ber, &len, cookie )) {
+ if (( ldm = (LDAPMessage *)NSLDAPI_CALLOC( 1, sizeof(LDAPMessage)))
+ == NULL ) {
+ rc = LDAP_NO_MEMORY;
+ break; /* return with error */
+ } else if (( rc = nsldapi_alloc_ber_with_options( ld, &ldm->lm_ber ))
+ != LDAP_SUCCESS ) {
+ break; /* return with error*/
+ }
+ ldm->lm_msgid = msgid;
+ ldm->lm_msgtype = tag;
+
+ if ( tag == LDAP_RES_SEARCH_RESULT ) {
+ LDAPDebug( LDAP_DEBUG_TRACE, "cldap_parsemsg got search result\n",
+ 0, 0, 0 );
+
+ if ( ber_get_stringal( ber, &bv ) == LBER_DEFAULT ) {
+ break; /* return w/error */
+ }
+
+ if ( ber_printf( ldm->lm_ber, "to", tag, bv->bv_val,
+ bv->bv_len ) == -1 ) {
+ break; /* return w/error */
+ }
+ ber_bvfree( bv );
+ bv = NULL;
+ rc = LDAP_SUCCESS;
+
+ } else if ( tag == LDAP_RES_SEARCH_ENTRY ) {
+ if ( ber_scanf( ber, "{aO", &dn, &bv ) == LBER_ERROR ) {
+ break; /* return w/error */
+ }
+ LDAPDebug( LDAP_DEBUG_TRACE, "cldap_parsemsg entry %s\n", dn, 0, 0 );
+ if ( dn != NULL && *(dn + ( slen = strlen(dn)) - 1) == '*' &&
+ baselen > 0 ) {
+ /*
+ * substitute original searchbase for trailing '*'
+ */
+ if (( p = (char *)NSLDAPI_MALLOC( slen + baselen )) == NULL ) {
+ rc = LDAP_NO_MEMORY;
+ NSLDAPI_FREE( dn );
+ break; /* return w/error */
+ }
+ strcpy( p, dn );
+ strcpy( p + slen - 1, base );
+ NSLDAPI_FREE( dn );
+ dn = p;
+ }
+
+ if ( ber_printf( ldm->lm_ber, "t{so}", tag, dn, bv->bv_val,
+ bv->bv_len ) == -1 ) {
+ break; /* return w/error */
+ }
+ NSLDAPI_FREE( dn );
+ ber_bvfree( bv );
+ bv = NULL;
+
+ } else {
+ LDAPDebug( LDAP_DEBUG_TRACE, "cldap_parsemsg got unknown tag %d\n",
+ tag, 0, 0 );
+ rc = LDAP_PROTOCOL_ERROR;
+ break; /* return w/error */
+ }
+
+ /* Reset message ber so we can read from it later. Gack! */
+ ldm->lm_ber->ber_end = ldm->lm_ber->ber_ptr;
+ ldm->lm_ber->ber_ptr = ldm->lm_ber->ber_buf;
+
+#ifdef LDAP_DEBUG
+ if ( ldap_debug & LDAP_DEBUG_PACKETS ) {
+ char msg[80];
+ sprintf( msg, "cldap_parsemsg add message id %d type %d:\n",
+ ldm->lm_msgid, ldm->lm_msgtype );
+ ber_err_print( msg );
+ ber_dump( ldm->lm_ber, 1 );
+ }
+#endif /* LDAP_DEBUG */
+
+#ifndef NO_CACHE
+ if ( ld->ld_cache != NULL ) {
+ nsldapi_add_result_to_cache( ld, ldm );
+ }
+#endif /* NO_CACHE */
+
+ if ( chain == NULL ) {
+ chain = ldm;
+ } else {
+ prev->lm_chain = ldm;
+ }
+ prev = ldm;
+ ldm = NULL;
+ }
+
+ /* dispose of any leftovers */
+ if ( ldm != NULL ) {
+ if ( ldm->lm_ber != NULLBER ) {
+ ber_free( ldm->lm_ber, 1 );
+ }
+ NSLDAPI_FREE( ldm );
+ }
+ if ( bv != NULL ) {
+ ber_bvfree( bv );
+ }
+
+ /* return chain, calling result2error if we got anything at all */
+ *res = chain;
+ return(( *res == NULLMSG ) ? rc : ldap_result2error( ld, *res, 0 ));
+}
+#endif /* CLDAP */
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-07 12:29:30 +0000