-/* str2filter.c - parse an rfc 1588 string filter */
+/* str2filter.c - parse an RFC 2554 string filter */
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1998-2008 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>.
+ */
+/* Portions Copyright (c) 1995 Regents of the University of Michigan.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms are permitted
+ * provided that this notice is preserved and that due credit is given
+ * to the University of Michigan at Ann Arbor. The name of the University
+ * may not be used to endorse or promote products derived from this
+ * software without specific prior written permission. This software
+ * is provided ``as is'' without express or implied warranty.
+ */
#include "portable.h"
#include <stdio.h>
-#include <string.h>
-#include <sys/types.h>
-#include <sys/socket.h>
+
+#include <ac/string.h>
+#include <ac/ctype.h>
+#include <ac/socket.h>
+
#include "slap.h"
-static char *find_matching_paren();
-static Filter *str2list();
-static Filter *str2simple();
-static int str2subvals();
Filter *
-str2filter( char *str )
+str2filter_x( Operation *op, const char *str )
{
- Filter *f;
- char *end;
+ int rc;
+ Filter *f = NULL;
+ BerElementBuffer berbuf;
+ BerElement *ber = (BerElement *)&berbuf;
+ const char *text = NULL;
Debug( LDAP_DEBUG_FILTER, "str2filter \"%s\"\n", str, 0, 0 );
if ( str == NULL || *str == '\0' ) {
- return( NULL );
+ return NULL;
}
- switch ( *str ) {
- case '(':
- if ( (end = find_matching_paren( str )) == NULL ) {
- filter_free( f );
- return( NULL );
- }
- *end = '\0';
-
- str++;
- switch ( *str ) {
- case '&':
- Debug( LDAP_DEBUG_FILTER, "str2filter: AND\n",
- 0, 0, 0 );
-
- str++;
- f = str2list( str, LDAP_FILTER_AND );
- break;
-
- case '|':
- Debug( LDAP_DEBUG_FILTER, "put_filter: OR\n",
- 0, 0, 0 );
-
- str++;
- f = str2list( str, LDAP_FILTER_OR );
- break;
-
- case '!':
- Debug( LDAP_DEBUG_FILTER, "put_filter: NOT\n",
- 0, 0, 0 );
-
- str++;
- f = str2list( str, LDAP_FILTER_NOT );
- break;
-
- default:
- Debug( LDAP_DEBUG_FILTER, "str2filter: simple\n",
- 0, 0, 0 );
-
- f = str2simple( str );
- break;
- }
- *end = ')';
- break;
-
- default: /* assume it's a simple type=value filter */
- Debug( LDAP_DEBUG_FILTER, "str2filter: default\n", 0, 0,
- 0 );
-
- f = str2simple( str );
- break;
+ ber_init2( ber, NULL, LBER_USE_DER );
+ if ( op->o_tmpmemctx ) {
+ ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
}
- return( f );
-}
-
-/*
- * Put a list of filters like this "(filter1)(filter2)..."
- */
-
-static Filter *
-str2list( char *str, unsigned long ftype )
-{
- Filter *f;
- Filter **fp;
- char *next;
- char save;
-
- Debug( LDAP_DEBUG_FILTER, "str2list \"%s\"\n", str, 0, 0 );
-
- f = (Filter *) ch_calloc( 1, sizeof(Filter) );
- f->f_choice = ftype;
- fp = &f->f_list;
-
- while ( *str ) {
- while ( *str && isspace( *str ) )
- str++;
- if ( *str == '\0' )
- break;
-
- if ( (next = find_matching_paren( str )) == NULL ) {
- filter_free( f );
- return( NULL );
- }
- save = *++next;
- *next = '\0';
-
- /* now we have "(filter)" with str pointing to it */
- if ( (*fp = str2filter( str )) == NULL ) {
- filter_free( f );
- *next = save;
- return( NULL );
- }
- *next = save;
-
- str = next;
- fp = &(*fp)->f_next;
+ rc = ldap_pvt_put_filter( ber, str );
+ if( rc < 0 ) {
+ goto done;
}
- *fp = NULL;
-
- return( f );
-}
-
-static Filter *
-str2simple( char *str )
-{
- Filter *f;
- char *s;
- char *value, savechar;
- Debug( LDAP_DEBUG_FILTER, "str2simple \"%s\"\n", str, 0, 0 );
+ ber_reset( ber, 1 );
- if ( (s = strchr( str, '=' )) == NULL ) {
- return( NULL );
- }
- value = s + 1;
- *s-- = '\0';
- savechar = *s;
-
- f = (Filter *) ch_calloc( 1, sizeof(Filter) );
-
- switch ( *s ) {
- case '<':
- f->f_choice = LDAP_FILTER_LE;
- *s = '\0';
- break;
- case '>':
- f->f_choice = LDAP_FILTER_GE;
- *s = '\0';
- break;
- case '~':
- f->f_choice = LDAP_FILTER_APPROX;
- *s = '\0';
- break;
- default:
- if ( strchr( value, '*' ) == NULL ) {
- f->f_choice = LDAP_FILTER_EQUALITY;
- } else if ( strcmp( value, "*" ) == 0 ) {
- f->f_choice = LDAP_FILTER_PRESENT;
- } else {
- f->f_choice = LDAP_FILTER_SUBSTRINGS;
- f->f_sub_type = strdup( str );
- if ( str2subvals( value, f ) != 0 ) {
- filter_free( f );
- *(value-1) = '=';
- return( NULL );
- }
- *(value-1) = '=';
- return( f );
- }
- break;
- }
+ rc = get_filter( op, ber, &f, &text );
- if ( f->f_choice == LDAP_FILTER_PRESENT ) {
- f->f_type = strdup( str );
- } else {
- f->f_avtype = strdup( str );
- f->f_avvalue.bv_val = strdup( value );
- f->f_avvalue.bv_len = strlen( value );
- }
+done:
+ ber_free_buf( ber );
- *s = savechar;
- *(value-1) = '=';
- return( f );
+ return f;
}
-static int
-str2subvals( char *val, Filter *f )
+Filter *
+str2filter( const char *str )
{
- char *nextstar;
- int gotstar;
-
- Debug( LDAP_DEBUG_FILTER, "str2subvals \"%s\"\n", val, 0, 0 );
-
- gotstar = 0;
- while ( val != NULL && *val ) {
- if ( (nextstar = strchr( val, '*' )) != NULL )
- *nextstar++ = '\0';
-
- if ( gotstar == 0 ) {
- f->f_sub_initial = strdup( val );
- } else if ( nextstar == NULL ) {
- f->f_sub_final = strdup( val );
- } else {
- charray_add( &f->f_sub_any, strdup( val ) );
- }
-
- gotstar = 1;
- if ( nextstar != NULL )
- *(nextstar-1) = '*';
- val = nextstar;
- }
+ Operation op = {0};
+ Opheader ohdr = {0};
- return( 0 );
-}
-
-/*
- * find_matching_paren - return a pointer to the right paren in s matching
- * the left paren to which *s currently points
- */
-
-static char *
-find_matching_paren( char *s )
-{
- int balance, escape;
-
- balance = 0;
- escape = 0;
- for ( ; *s; s++ ) {
- if ( escape == 0 ) {
- if ( *s == '(' )
- balance++;
- else if ( *s == ')' )
- balance--;
- }
- if ( balance == 0 ) {
- return( s );
- }
- if ( *s == '\\' && ! escape )
- escape = 1;
- else
- escape = 0;
- }
+ op.o_hdr = &ohdr;
+ op.o_tmpmemctx = NULL;
+ op.o_tmpmfuncs = &ch_mfuncs;
- return( NULL );
+ return str2filter_x( &op, str );
}
projects / openldap / blobdiff