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-rw-r--r--ldap/c-sdk/libraries/libldap/search.c1022
1 files changed, 1022 insertions, 0 deletions
diff --git a/ldap/c-sdk/libraries/libldap/search.c b/ldap/c-sdk/libraries/libldap/search.c
new file mode 100644
index 000000000..648d739e6
--- /dev/null
+++ b/ldap/c-sdk/libraries/libldap/search.c
@@ -0,0 +1,1022 @@
+/* ***** 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 Regents of the University of Michigan.
+ * All rights reserved.
+ */
+/*
+ * search.c
+ */
+
+#if 0
+#ifndef lint
+static char copyright[] = "@(#) Copyright (c) 1990 Regents of the University of Michigan.\nAll rights reserved.\n";
+#endif
+#endif
+
+#include "ldap-int.h"
+
+static int nsldapi_timeval2ldaplimit( struct timeval *timeoutp,
+ int defaultvalue );
+static int nsldapi_search( LDAP *ld, const char *base, int scope,
+ const char *filter, char **attrs, int attrsonly,
+ LDAPControl **serverctrls, LDAPControl **clientctrls,
+ int timelimit, int sizelimit, int *msgidp );
+static char *find_right_paren( char *s );
+static char *put_complex_filter( BerElement *ber, char *str,
+ unsigned long tag, int not );
+static int put_filter( BerElement *ber, char *str );
+static int unescape_filterval( char *str );
+static int hexchar2int( char c );
+static int is_valid_attr( char *a );
+static int put_simple_filter( BerElement *ber, char *str );
+static int put_substring_filter( BerElement *ber, char *type,
+ char *str );
+static int put_filter_list( BerElement *ber, char *str );
+static int nsldapi_search_s( LDAP *ld, const char *base, int scope,
+ const char *filter, char **attrs, int attrsonly,
+ LDAPControl **serverctrls, LDAPControl **clientctrls,
+ struct timeval *localtimeoutp, int timelimit, int sizelimit,
+ LDAPMessage **res );
+
+/*
+ * ldap_search - initiate an ldap search operation. Parameters:
+ *
+ * ld LDAP descriptor
+ * base DN of the base object
+ * scope the search scope - one of LDAP_SCOPE_BASE,
+ * LDAP_SCOPE_ONELEVEL, LDAP_SCOPE_SUBTREE
+ * filter a string containing the search filter
+ * (e.g., "(|(cn=bob)(sn=bob))")
+ * attrs list of attribute types to return for matches
+ * attrsonly 1 => attributes only 0 => attributes and values
+ *
+ * Example:
+ * char *attrs[] = { "mail", "title", 0 };
+ * msgid = ldap_search( ld, "c=us@o=UM", LDAP_SCOPE_SUBTREE, "cn~=bob",
+ * attrs, attrsonly );
+ */
+int
+LDAP_CALL
+ldap_search(
+ LDAP *ld,
+ const char *base,
+ int scope,
+ const char *filter,
+ char **attrs,
+ int attrsonly
+)
+{
+ int msgid;
+
+ LDAPDebug( LDAP_DEBUG_TRACE, "ldap_search\n", 0, 0, 0 );
+
+ if ( ldap_search_ext( ld, base, scope, filter, attrs, attrsonly, NULL,
+ NULL, NULL, -1, &msgid ) == LDAP_SUCCESS ) {
+ return( msgid );
+ } else {
+ return( -1 ); /* error is in ld handle */
+ }
+}
+
+
+/*
+ * LDAPv3 extended search.
+ * Returns an LDAP error code.
+ */
+int
+LDAP_CALL
+ldap_search_ext(
+ LDAP *ld,
+ const char *base,
+ int scope,
+ const char *filter,
+ char **attrs,
+ int attrsonly,
+ LDAPControl **serverctrls,
+ LDAPControl **clientctrls,
+ struct timeval *timeoutp, /* NULL means use ld->ld_timelimit */
+ int sizelimit,
+ int *msgidp
+)
+{
+ /*
+ * It is an error to pass in a zero'd timeval.
+ */
+ if ( timeoutp != NULL && timeoutp->tv_sec == 0 &&
+ timeoutp->tv_usec == 0 ) {
+ if ( ld != NULL ) {
+ LDAP_SET_LDERRNO( ld, LDAP_PARAM_ERROR, NULL, NULL );
+ }
+ return( LDAP_PARAM_ERROR );
+ }
+
+ return( nsldapi_search( ld, base, scope, filter, attrs, attrsonly,
+ serverctrls, clientctrls,
+ nsldapi_timeval2ldaplimit( timeoutp, -1 ), sizelimit, msgidp ));
+}
+
+
+/*
+ * Like ldap_search_ext() except an integer timelimit is passed instead of
+ * using the overloaded struct timeval *timeoutp.
+ */
+static int
+nsldapi_search(
+ LDAP *ld,
+ const char *base,
+ int scope,
+ const char *filter,
+ char **attrs,
+ int attrsonly,
+ LDAPControl **serverctrls,
+ LDAPControl **clientctrls,
+ int timelimit, /* -1 means use ld->ld_timelimit */
+ int sizelimit, /* -1 means use ld->ld_sizelimit */
+ int *msgidp
+)
+{
+ BerElement *ber;
+ int rc, rc_key;
+ unsigned long key; /* XXXmcs: memcache */
+
+ LDAPDebug( LDAP_DEBUG_TRACE, "ldap_search_ext\n", 0, 0, 0 );
+
+ if ( !NSLDAPI_VALID_LDAP_POINTER( ld )) {
+ return( LDAP_PARAM_ERROR );
+ }
+
+ if ( base == NULL ) {
+ base = "";
+ }
+
+ if ( filter == NULL ) {
+ filter = "(objectclass=*)";
+ }
+
+ if ( msgidp == NULL || ( scope != LDAP_SCOPE_BASE
+ && scope != LDAP_SCOPE_ONELEVEL && scope != LDAP_SCOPE_SUBTREE )
+ || ( sizelimit < -1 )) {
+ LDAP_SET_LDERRNO( ld, LDAP_PARAM_ERROR, NULL, NULL );
+ return( LDAP_PARAM_ERROR );
+ }
+ LDAP_MUTEX_LOCK( ld, LDAP_MSGID_LOCK );
+ *msgidp = ++ld->ld_msgid;
+ LDAP_MUTEX_UNLOCK( ld, LDAP_MSGID_LOCK );
+
+ /*
+ * XXXmcs: should use cache function pointers to hook in memcache
+ */
+ if ( ld->ld_memcache == NULL ) {
+ rc_key = LDAP_NOT_SUPPORTED;
+ } else if (( rc_key = ldap_memcache_createkey( ld, base, scope, filter,
+ attrs, attrsonly, serverctrls, clientctrls, &key)) == LDAP_SUCCESS
+ && ldap_memcache_result( ld, *msgidp, key ) == LDAP_SUCCESS ) {
+ return LDAP_SUCCESS;
+ }
+
+ /* check the cache */
+ if ( ld->ld_cache_on && ld->ld_cache_search != NULL ) {
+ LDAP_MUTEX_LOCK( ld, LDAP_CACHE_LOCK );
+ if ( (rc = (ld->ld_cache_search)( ld, *msgidp, LDAP_REQ_SEARCH,
+ base, scope, filter, attrs, attrsonly )) != 0 ) {
+ *msgidp = rc;
+ LDAP_MUTEX_UNLOCK( ld, LDAP_CACHE_LOCK );
+ return( LDAP_SUCCESS );
+ }
+ LDAP_MUTEX_UNLOCK( ld, LDAP_CACHE_LOCK );
+ }
+
+ /* caching off or did not find it in the cache - check the net */
+ if (( rc = nsldapi_build_search_req( ld, base, scope, filter, attrs,
+ attrsonly, serverctrls, clientctrls, timelimit, sizelimit,
+ *msgidp, &ber )) != LDAP_SUCCESS ) {
+ return( rc );
+ }
+
+ /* send the message */
+ rc = nsldapi_send_initial_request( ld, *msgidp, LDAP_REQ_SEARCH,
+ (char *) base, ber );
+
+ /*
+ * XXXmcs: should use cache function pointers to hook in memcache
+ */
+ if ( (rc_key == LDAP_SUCCESS) && (rc >= 0) ) {
+ ldap_memcache_new( ld, rc, key, base );
+ }
+
+ *msgidp = rc;
+ return( rc < 0 ? LDAP_GET_LDERRNO( ld, NULL, NULL ) : LDAP_SUCCESS );
+}
+
+
+/*
+ * Convert a non-NULL timeoutp to a value in seconds that is appropriate to
+ * send in an LDAP search request. If timeoutp is NULL, return defaultvalue.
+ */
+static int
+nsldapi_timeval2ldaplimit( struct timeval *timeoutp, int defaultvalue )
+{
+ int timelimit;
+
+ if ( NULL == timeoutp ) {
+ timelimit = defaultvalue;
+ } else if ( timeoutp->tv_sec > 0 ) {
+ timelimit = timeoutp->tv_sec;
+ } else if ( timeoutp->tv_usec > 0 ) {
+ timelimit = 1; /* minimum we can express in LDAP */
+ } else {
+ /*
+ * both tv_sec and tv_usec are less than one (zero?) so
+ * to maintain compatiblity with our "zero means no limit"
+ * convention we pass no limit to the server.
+ */
+ timelimit = 0; /* no limit */
+ }
+
+ return( timelimit );
+}
+
+
+/* returns an LDAP error code and also sets it in ld */
+int
+nsldapi_build_search_req(
+ LDAP *ld,
+ const char *base,
+ int scope,
+ const char *filter,
+ char **attrs,
+ int attrsonly,
+ LDAPControl **serverctrls,
+ LDAPControl **clientctrls, /* not used for anything yet */
+ int timelimit, /* if -1, ld->ld_timelimit is used */
+ int sizelimit, /* if -1, ld->ld_sizelimit is used */
+ int msgid,
+ BerElement **berp
+)
+{
+ BerElement *ber;
+ int err;
+ char *fdup;
+
+ /*
+ * Create the search request. It looks like this:
+ * SearchRequest := [APPLICATION 3] SEQUENCE {
+ * baseObject DistinguishedName,
+ * scope ENUMERATED {
+ * baseObject (0),
+ * singleLevel (1),
+ * wholeSubtree (2)
+ * },
+ * derefAliases ENUMERATED {
+ * neverDerefaliases (0),
+ * derefInSearching (1),
+ * derefFindingBaseObj (2),
+ * alwaysDerefAliases (3)
+ * },
+ * sizelimit INTEGER (0 .. 65535),
+ * timelimit INTEGER (0 .. 65535),
+ * attrsOnly BOOLEAN,
+ * filter Filter,
+ * attributes SEQUENCE OF AttributeType
+ * }
+ * wrapped in an ldap message.
+ */
+
+ /* create a message to send */
+ if (( err = nsldapi_alloc_ber_with_options( ld, &ber ))
+ != LDAP_SUCCESS ) {
+ return( err );
+ }
+
+ if ( base == NULL ) {
+ base = "";
+ }
+
+ if ( sizelimit == -1 ) {
+ sizelimit = ld->ld_sizelimit;
+ }
+
+ if ( timelimit == -1 ) {
+ timelimit = ld->ld_timelimit;
+ }
+
+#ifdef CLDAP
+ if ( ld->ld_sbp->sb_naddr > 0 ) {
+ err = ber_printf( ber, "{ist{seeiib", msgid,
+ ld->ld_cldapdn, LDAP_REQ_SEARCH, base, scope, ld->ld_deref,
+ sizelimit, timelimit, attrsonly );
+ } else {
+#endif /* CLDAP */
+ err = ber_printf( ber, "{it{seeiib", msgid,
+ LDAP_REQ_SEARCH, base, scope, ld->ld_deref,
+ sizelimit, timelimit, attrsonly );
+#ifdef CLDAP
+ }
+#endif /* CLDAP */
+
+ if ( err == -1 ) {
+ LDAP_SET_LDERRNO( ld, LDAP_ENCODING_ERROR, NULL, NULL );
+ ber_free( ber, 1 );
+ return( LDAP_ENCODING_ERROR );
+ }
+
+ fdup = nsldapi_strdup( filter );
+ err = put_filter( ber, fdup );
+ NSLDAPI_FREE( fdup );
+
+ if ( err == -1 ) {
+ LDAP_SET_LDERRNO( ld, LDAP_FILTER_ERROR, NULL, NULL );
+ ber_free( ber, 1 );
+ return( LDAP_FILTER_ERROR );
+ }
+
+ if ( ber_printf( ber, "{v}}", attrs ) == -1 ) {
+ LDAP_SET_LDERRNO( ld, LDAP_ENCODING_ERROR, NULL, NULL );
+ ber_free( ber, 1 );
+ return( LDAP_ENCODING_ERROR );
+ }
+
+ if ( (err = nsldapi_put_controls( ld, serverctrls, 1, ber ))
+ != LDAP_SUCCESS ) {
+ ber_free( ber, 1 );
+ return( err );
+ }
+
+ *berp = ber;
+ return( LDAP_SUCCESS );
+}
+
+static char *
+find_right_paren( char *s )
+{
+ int balance, escape;
+
+ balance = 1;
+ escape = 0;
+ while ( *s && balance ) {
+ if ( escape == 0 ) {
+ if ( *s == '(' )
+ balance++;
+ else if ( *s == ')' )
+ balance--;
+ }
+ if ( *s == '\\' && ! escape )
+ escape = 1;
+ else
+ escape = 0;
+ if ( balance )
+ s++;
+ }
+
+ return( *s ? s : NULL );
+}
+
+static char *
+put_complex_filter(
+ BerElement *ber,
+ char *str,
+ unsigned long tag,
+ int not
+)
+{
+ char *next;
+
+ /*
+ * We have (x(filter)...) with str sitting on
+ * the x. We have to find the paren matching
+ * the one before the x and put the intervening
+ * filters by calling put_filter_list().
+ */
+
+ /* put explicit tag */
+ if ( ber_printf( ber, "t{", tag ) == -1 )
+ return( NULL );
+
+ str++;
+ if ( (next = find_right_paren( str )) == NULL )
+ return( NULL );
+
+ *next = '\0';
+ if ( put_filter_list( ber, str ) == -1 )
+ return( NULL );
+ *next++ = ')';
+
+ /* flush explicit tagged thang */
+ if ( ber_printf( ber, "}" ) == -1 )
+ return( NULL );
+
+ return( next );
+}
+
+static int
+put_filter( BerElement *ber, char *str )
+{
+ char *next;
+ int parens, balance, escape;
+
+ /*
+ * A Filter looks like this:
+ * Filter ::= CHOICE {
+ * and [0] SET OF Filter,
+ * or [1] SET OF Filter,
+ * not [2] Filter,
+ * equalityMatch [3] AttributeValueAssertion,
+ * substrings [4] SubstringFilter,
+ * greaterOrEqual [5] AttributeValueAssertion,
+ * lessOrEqual [6] AttributeValueAssertion,
+ * present [7] AttributeType,,
+ * approxMatch [8] AttributeValueAssertion
+ * }
+ *
+ * SubstringFilter ::= SEQUENCE {
+ * type AttributeType,
+ * SEQUENCE OF CHOICE {
+ * initial [0] IA5String,
+ * any [1] IA5String,
+ * final [2] IA5String
+ * }
+ * }
+ * Note: tags in a choice are always explicit
+ */
+
+ LDAPDebug( LDAP_DEBUG_TRACE, "put_filter \"%s\"\n", str, 0, 0 );
+
+ parens = 0;
+ while ( *str ) {
+ switch ( *str ) {
+ case '(':
+ str++;
+ parens++;
+ switch ( *str ) {
+ case '&':
+ LDAPDebug( LDAP_DEBUG_TRACE, "put_filter: AND\n",
+ 0, 0, 0 );
+
+ if ( (str = put_complex_filter( ber, str,
+ LDAP_FILTER_AND, 0 )) == NULL )
+ return( -1 );
+
+ parens--;
+ break;
+
+ case '|':
+ LDAPDebug( LDAP_DEBUG_TRACE, "put_filter: OR\n",
+ 0, 0, 0 );
+
+ if ( (str = put_complex_filter( ber, str,
+ LDAP_FILTER_OR, 0 )) == NULL )
+ return( -1 );
+
+ parens--;
+ break;
+
+ case '!':
+ LDAPDebug( LDAP_DEBUG_TRACE, "put_filter: NOT\n",
+ 0, 0, 0 );
+
+ if ( (str = put_complex_filter( ber, str,
+ LDAP_FILTER_NOT, 1 )) == NULL )
+ return( -1 );
+
+ parens--;
+ break;
+
+ default:
+ LDAPDebug( LDAP_DEBUG_TRACE,
+ "put_filter: simple\n", 0, 0, 0 );
+
+ balance = 1;
+ escape = 0;
+ next = str;
+ while ( *next && balance ) {
+ if ( escape == 0 ) {
+ if ( *next == '(' )
+ balance++;
+ else if ( *next == ')' )
+ balance--;
+ }
+ if ( *next == '\\' && ! escape )
+ escape = 1;
+ else
+ escape = 0;
+ if ( balance )
+ next++;
+ }
+ if ( balance != 0 )
+ return( -1 );
+
+ *next = '\0';
+ if ( put_simple_filter( ber, str ) == -1 ) {
+ return( -1 );
+ }
+ *next++ = ')';
+ str = next;
+ parens--;
+ break;
+ }
+ break;
+
+ case ')':
+ LDAPDebug( LDAP_DEBUG_TRACE, "put_filter: end\n", 0, 0,
+ 0 );
+ if ( ber_printf( ber, "]" ) == -1 )
+ return( -1 );
+ str++;
+ parens--;
+ break;
+
+ case ' ':
+ str++;
+ break;
+
+ default: /* assume it's a simple type=value filter */
+ LDAPDebug( LDAP_DEBUG_TRACE, "put_filter: default\n", 0, 0,
+ 0 );
+ next = strchr( str, '\0' );
+ if ( put_simple_filter( ber, str ) == -1 ) {
+ return( -1 );
+ }
+ str = next;
+ break;
+ }
+ }
+
+ return( parens ? -1 : 0 );
+}
+
+
+/*
+ * Put a list of filters like this "(filter1)(filter2)..."
+ */
+
+static int
+put_filter_list( BerElement *ber, char *str )
+{
+ char *next;
+ char save;
+
+ LDAPDebug( LDAP_DEBUG_TRACE, "put_filter_list \"%s\"\n", str, 0, 0 );
+
+ while ( *str ) {
+ while ( *str && isspace( *str ) )
+ str++;
+ if ( *str == '\0' )
+ break;
+
+ if ( (next = find_right_paren( str + 1 )) == NULL )
+ return( -1 );
+ save = *++next;
+
+ /* now we have "(filter)" with str pointing to it */
+ *next = '\0';
+ if ( put_filter( ber, str ) == -1 )
+ return( -1 );
+ *next = save;
+
+ str = next;
+ }
+
+ return( 0 );
+}
+
+
+/*
+ * is_valid_attr - returns 1 if a is a syntactically valid left-hand side
+ * of a filter expression, 0 otherwise. A valid string may contain only
+ * letters, numbers, hyphens, semi-colons, colons and periods. examples:
+ * cn
+ * cn;lang-fr
+ * 1.2.3.4;binary;dynamic
+ * mail;dynamic
+ * cn:dn:1.2.3.4
+ *
+ * For compatibility with older servers, we also allow underscores in
+ * attribute types, even through they are not allowed by the LDAPv3 RFCs.
+ */
+static int
+is_valid_attr( char *a )
+{
+ for ( ; *a; a++ ) {
+ if ( !isascii( *a ) ) {
+ return( 0 );
+ } else if ( !isalnum( *a ) ) {
+ switch ( *a ) {
+ case '-':
+ case '.':
+ case ';':
+ case ':':
+ case '_':
+ break; /* valid */
+ default:
+ return( 0 );
+ }
+ }
+ }
+
+ return( 1 );
+}
+
+static char *
+find_star( char *s )
+{
+ for ( ; *s; ++s ) {
+ switch ( *s ) {
+ case '*': return s;
+ case '\\':
+ ++s;
+ if ( hexchar2int(s[0]) >= 0 && hexchar2int(s[1]) >= 0 ) ++s;
+ default: break;
+ }
+ }
+ return NULL;
+}
+
+static int
+put_simple_filter( BerElement *ber, char *str )
+{
+ char *s, *s2, *s3, filterop;
+ char *value;
+ unsigned long ftype;
+ int rc, len;
+ char *oid; /* for v3 extended filter */
+ int dnattr; /* for v3 extended filter */
+
+ LDAPDebug( LDAP_DEBUG_TRACE, "put_simple_filter \"%s\"\n", str, 0, 0 );
+
+ rc = -1; /* pessimistic */
+
+ if (( str = nsldapi_strdup( str )) == NULL ) {
+ return( rc );
+ }
+
+ if ( (s = strchr( str, '=' )) == NULL ) {
+ goto free_and_return;
+ }
+ value = s + 1;
+ *s-- = '\0';
+ filterop = *s;
+ if ( filterop == '<' || filterop == '>' || filterop == '~' ||
+ filterop == ':' ) {
+ *s = '\0';
+ }
+
+ if ( ! is_valid_attr( str ) ) {
+ goto free_and_return;
+ }
+
+ switch ( filterop ) {
+ case '<':
+ ftype = LDAP_FILTER_LE;
+ break;
+ case '>':
+ ftype = LDAP_FILTER_GE;
+ break;
+ case '~':
+ ftype = LDAP_FILTER_APPROX;
+ break;
+ case ':': /* extended filter - v3 only */
+ /*
+ * extended filter looks like this:
+ *
+ * [type][':dn'][':'oid]':='value
+ *
+ * where one of type or :oid is required.
+ *
+ */
+ ftype = LDAP_FILTER_EXTENDED;
+ s2 = s3 = NULL;
+ if ( (s2 = strrchr( str, ':' )) == NULL ) {
+ goto free_and_return;
+ }
+ if ( strcasecmp( s2, ":dn" ) == 0 ) {
+ oid = NULL;
+ dnattr = 1;
+ *s2 = '\0';
+ } else {
+ oid = s2 + 1;
+ dnattr = 0;
+ *s2 = '\0';
+ if ( (s3 = strrchr( str, ':' )) != NULL ) {
+ if ( strcasecmp( s3, ":dn" ) == 0 ) {
+ dnattr = 1;
+ } else {
+ goto free_and_return;
+ }
+ *s3 = '\0';
+ }
+ }
+ if ( (rc = ber_printf( ber, "t{", ftype )) == -1 ) {
+ goto free_and_return;
+ }
+ if ( oid != NULL ) {
+ if ( (rc = ber_printf( ber, "ts", LDAP_TAG_MRA_OID,
+ oid )) == -1 ) {
+ goto free_and_return;
+ }
+ }
+ if ( *str != '\0' ) {
+ if ( (rc = ber_printf( ber, "ts",
+ LDAP_TAG_MRA_TYPE, str )) == -1 ) {
+ goto free_and_return;
+ }
+ }
+ if (( len = unescape_filterval( value )) < 0 ||
+ ( rc = ber_printf( ber, "totb}", LDAP_TAG_MRA_VALUE,
+ value, len, LDAP_TAG_MRA_DNATTRS, dnattr )) == -1 ) {
+ goto free_and_return;
+ }
+ rc = 0;
+ goto free_and_return;
+ break;
+ default:
+ if ( find_star( value ) == NULL ) {
+ ftype = LDAP_FILTER_EQUALITY;
+ } else if ( strcmp( value, "*" ) == 0 ) {
+ ftype = LDAP_FILTER_PRESENT;
+ } else {
+ rc = put_substring_filter( ber, str, value );
+ goto free_and_return;
+ }
+ break;
+ }
+
+ if ( ftype == LDAP_FILTER_PRESENT ) {
+ rc = ber_printf( ber, "ts", ftype, str );
+ } else if (( len = unescape_filterval( value )) >= 0 ) {
+ rc = ber_printf( ber, "t{so}", ftype, str, value, len );
+ }
+ if ( rc != -1 ) {
+ rc = 0;
+ }
+
+free_and_return:
+ NSLDAPI_FREE( str );
+ return( rc );
+}
+
+
+/*
+ * Undo in place both LDAPv2 (RFC-1960) and LDAPv3 (hexadecimal) escape
+ * sequences within the null-terminated string 'val'. The resulting value
+ * may contain null characters.
+ *
+ * If 'val' contains invalid escape sequences we return -1.
+ * Otherwise the length of the unescaped value is returned.
+ */
+static int
+unescape_filterval( char *val )
+{
+ int escape, firstdigit, ival;
+ char *s, *d;
+
+ escape = firstdigit = 0;
+ for ( s = d = val; *s; s++ ) {
+ if ( escape ) {
+ /*
+ * first try LDAPv3 escape (hexadecimal) sequence
+ */
+ if (( ival = hexchar2int( *s )) < 0 ) {
+ if ( firstdigit ) {
+ /*
+ * LDAPv2 (RFC1960) escape sequence
+ */
+ *d++ = *s;
+ escape = 0;
+ } else {
+ return(-1);
+ }
+ }
+ if ( firstdigit ) {
+ *d = ( ival<<4 );
+ firstdigit = 0;
+ } else {
+ *d++ |= ival;
+ escape = 0;
+ }
+
+ } else if ( *s != '\\' ) {
+ *d++ = *s;
+ escape = 0;
+
+ } else {
+ escape = 1;
+ firstdigit = 1;
+ }
+ }
+
+ return( d - val );
+}
+
+
+/*
+ * convert character 'c' that represents a hexadecimal digit to an integer.
+ * if 'c' is not a hexidecimal digit [0-9A-Fa-f], -1 is returned.
+ * otherwise the converted value is returned.
+ */
+static int
+hexchar2int( char c )
+{
+ if ( c >= '0' && c <= '9' ) {
+ return( c - '0' );
+ }
+ if ( c >= 'A' && c <= 'F' ) {
+ return( c - 'A' + 10 );
+ }
+ if ( c >= 'a' && c <= 'f' ) {
+ return( c - 'a' + 10 );
+ }
+ return( -1 );
+}
+
+static int
+put_substring_filter( BerElement *ber, char *type, char *val )
+{
+ char *nextstar, gotstar = 0;
+ unsigned long ftype;
+ int len;
+
+ LDAPDebug( LDAP_DEBUG_TRACE, "put_substring_filter \"%s=%s\"\n", type,
+ val, 0 );
+
+ if ( ber_printf( ber, "t{s{", LDAP_FILTER_SUBSTRINGS, type ) == -1 ) {
+ return( -1 );
+ }
+
+ for ( ; val != NULL; val = nextstar ) {
+ if ( (nextstar = find_star( val )) != NULL ) {
+ *nextstar++ = '\0';
+ }
+
+ if ( gotstar == 0 ) {
+ ftype = LDAP_SUBSTRING_INITIAL;
+ } else if ( nextstar == NULL ) {
+ ftype = LDAP_SUBSTRING_FINAL;
+ } else {
+ ftype = LDAP_SUBSTRING_ANY;
+ }
+ if ( *val != '\0' ) {
+ if (( len = unescape_filterval( val )) < 0 ||
+ ber_printf( ber, "to", ftype, val, len ) == -1 ) {
+ return( -1 );
+ }
+ }
+
+ gotstar = 1;
+ }
+
+ if ( ber_printf( ber, "}}" ) == -1 ) {
+ return( -1 );
+ }
+
+ return( 0 );
+}
+
+int
+LDAP_CALL
+ldap_search_st(
+ LDAP *ld,
+ const char *base,
+ int scope,
+ const char *filter,
+ char **attrs,
+ int attrsonly,
+ struct timeval *timeout,
+ LDAPMessage **res
+)
+{
+ return( nsldapi_search_s( ld, base, scope, filter, attrs, attrsonly,
+ NULL, NULL, timeout, -1, -1, res ));
+}
+
+int
+LDAP_CALL
+ldap_search_s(
+ LDAP *ld,
+ const char *base,
+ int scope,
+ const char *filter,
+ char **attrs,
+ int attrsonly,
+ LDAPMessage **res
+)
+{
+ return( nsldapi_search_s( ld, base, scope, filter, attrs, attrsonly,
+ NULL, NULL, NULL, -1, -1, res ));
+}
+
+int LDAP_CALL
+ldap_search_ext_s(
+ LDAP *ld,
+ const char *base,
+ int scope,
+ const char *filter,
+ char **attrs,
+ int attrsonly,
+ LDAPControl **serverctrls,
+ LDAPControl **clientctrls,
+ struct timeval *timeoutp,
+ int sizelimit,
+ LDAPMessage **res
+)
+{
+ return( nsldapi_search_s( ld, base, scope, filter, attrs, attrsonly,
+ serverctrls, clientctrls, timeoutp,
+ nsldapi_timeval2ldaplimit( timeoutp, -1 ), sizelimit, res ));
+}
+
+
+static int
+nsldapi_search_s(
+ LDAP *ld,
+ const char *base,
+ int scope,
+ const char *filter,
+ char **attrs,
+ int attrsonly,
+ LDAPControl **serverctrls,
+ LDAPControl **clientctrls,
+ struct timeval *localtimeoutp,
+ int timelimit, /* -1 means use ld->ld_timelimit */
+ int sizelimit, /* -1 means use ld->ld_sizelimit */
+ LDAPMessage **res
+)
+{
+ int err, msgid;
+
+ /*
+ * It is an error to pass in a zero'd timeval.
+ */
+ if ( localtimeoutp != NULL && localtimeoutp->tv_sec == 0 &&
+ localtimeoutp->tv_usec == 0 ) {
+ if ( ld != NULL ) {
+ LDAP_SET_LDERRNO( ld, LDAP_PARAM_ERROR, NULL, NULL );
+ }
+ if ( res != NULL ) {
+ *res = NULL;
+ }
+ return( LDAP_PARAM_ERROR );
+ }
+
+ if (( err = nsldapi_search( ld, base, scope, filter, attrs, attrsonly,
+ serverctrls, clientctrls, timelimit, sizelimit, &msgid ))
+ != LDAP_SUCCESS ) {
+ if ( res != NULL ) {
+ *res = NULL;
+ }
+ return( err );
+ }
+
+ if ( ldap_result( ld, msgid, 1, localtimeoutp, res ) == -1 ) {
+ /*
+ * Error. ldap_result() sets *res to NULL for us.
+ */
+ return( LDAP_GET_LDERRNO( ld, NULL, NULL ) );
+ }
+
+ if ( LDAP_GET_LDERRNO( ld, NULL, NULL ) == LDAP_TIMEOUT ) {
+ (void) ldap_abandon( ld, msgid );
+ err = LDAP_TIMEOUT;
+ LDAP_SET_LDERRNO( ld, err, NULL, NULL );
+ if ( res != NULL ) {
+ *res = NULL;
+ }
+ return( err );
+ }
+
+ return( ldap_result2error( ld, *res, 0 ) );
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-11 15:59:06 +0000