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/** BEGIN COPYRIGHT BLOCK
* This Program is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License as published by the Free Software
* Foundation; version 2 of the License.
*
* This Program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with
* this Program; if not, write to the Free Software Foundation, Inc., 59 Temple
* Place, Suite 330, Boston, MA 02111-1307 USA.
*
* In addition, as a special exception, Red Hat, Inc. gives You the additional
* right to link the code of this Program with code not covered under the GNU
* General Public License ("Non-GPL Code") and to distribute linked combinations
* including the two, subject to the limitations in this paragraph. Non-GPL Code
* permitted under this exception must only link to the code of this Program
* through those well defined interfaces identified in the file named EXCEPTION
* found in the source code files (the "Approved Interfaces"). The files of
* Non-GPL Code may instantiate templates or use macros or inline functions from
* the Approved Interfaces without causing the resulting work to be covered by
* the GNU General Public License. Only Red Hat, Inc. may make changes or
* additions to the list of Approved Interfaces. You must obey the GNU General
* Public License in all respects for all of the Program code and other code used
* in conjunction with the Program except the Non-GPL Code covered by this
* exception. If you modify this file, you may extend this exception to your
* version of the file, but you are not obligated to do so. If you do not wish to
* provide this exception without modification, you must delete this exception
* statement from your version and license this file solely under the GPL without
* exception.
*
*
* Copyright (C) 2001 Sun Microsystems, Inc. Used by permission.
* Copyright (C) 2005 Red Hat, Inc.
* All rights reserved.
* END COPYRIGHT BLOCK **/
/* int.c - integer syntax routines */
#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include "syntax.h"
static int int_filter_ava( Slapi_PBlock *pb, struct berval *bvfilter,
Slapi_Value **bvals, int ftype, Slapi_Value **retVal );
static int int_values2keys( Slapi_PBlock *pb, Slapi_Value **val,
Slapi_Value ***ivals );
static int int_assertion2keys( Slapi_PBlock *pb, Slapi_Value *val,
Slapi_Value ***ivals, int ftype );
static int int_compare(struct berval *v1, struct berval *v2);
static long int_to_canonical( long num );
/* the first name is the official one from RFC 2252 */
static char *names[] = { "INTEGER", "int", INTEGER_SYNTAX_OID, 0 };
static Slapi_PluginDesc pdesc = { "int-syntax", PLUGIN_MAGIC_VENDOR_STR,
PRODUCTTEXT, "integer attribute syntax plugin" };
int
int_init( Slapi_PBlock *pb )
{
int rc, flags;
LDAPDebug( LDAP_DEBUG_PLUGIN, "=> int_init\n", 0, 0, 0 );
rc = slapi_pblock_set( pb, SLAPI_PLUGIN_VERSION,
(void *) SLAPI_PLUGIN_VERSION_01 );
rc |= slapi_pblock_set( pb, SLAPI_PLUGIN_DESCRIPTION,
(void *)&pdesc );
rc |= slapi_pblock_set( pb, SLAPI_PLUGIN_SYNTAX_FILTER_AVA,
(void *) int_filter_ava );
rc |= slapi_pblock_set( pb, SLAPI_PLUGIN_SYNTAX_VALUES2KEYS,
(void *) int_values2keys );
rc |= slapi_pblock_set( pb, SLAPI_PLUGIN_SYNTAX_ASSERTION2KEYS_AVA,
(void *) int_assertion2keys );
flags = SLAPI_PLUGIN_SYNTAX_FLAG_ORDERING;
rc |= slapi_pblock_set( pb, SLAPI_PLUGIN_SYNTAX_FLAGS,
(void *) &flags );
rc |= slapi_pblock_set( pb, SLAPI_PLUGIN_SYNTAX_NAMES,
(void *) names );
rc |= slapi_pblock_set( pb, SLAPI_PLUGIN_SYNTAX_OID,
(void *) INTEGER_SYNTAX_OID );
rc |= slapi_pblock_set( pb, SLAPI_PLUGIN_SYNTAX_COMPARE,
(void *) int_compare );
LDAPDebug( LDAP_DEBUG_PLUGIN, "<= int_init %d\n", rc, 0, 0 );
return( rc );
}
static int
int_filter_ava( Slapi_PBlock *pb, struct berval *bvfilter,
Slapi_Value **bvals, int ftype, Slapi_Value **retVal )
{
int i, rc;
long flong, elong;
if ( ftype == LDAP_FILTER_APPROX ) {
return( LDAP_PROTOCOL_ERROR );
}
if(retVal) {
*retVal=NULL;
}
flong = atol( bvfilter->bv_val );
for ( i = 0; bvals[i] != NULL; i++ ) {
elong = atol ( slapi_value_get_string(bvals[i]) );
rc = elong - flong;
switch ( ftype ) {
case LDAP_FILTER_GE:
if ( rc >= 0 ) {
if(retVal) {
*retVal = bvals[i];
}
return( 0 );
}
break;
case LDAP_FILTER_LE:
if ( rc <= 0 ) {
if(retVal) {
*retVal = bvals[i];
}
return( 0 );
}
break;
case LDAP_FILTER_EQUALITY:
if ( rc == 0 ) {
if(retVal) {
*retVal = bvals[i];
}
return( 0 );
}
break;
}
}
return( -1 );
}
static int
int_values2keys( Slapi_PBlock *pb, Slapi_Value **vals, Slapi_Value ***ivals )
{
long num;
int i;
for ( i = 0; vals[i] != NULL; i++ ) {
/* NULL */
}
*ivals = (Slapi_Value **) slapi_ch_malloc(( i + 1 ) * sizeof(Slapi_Value *) );
for ( i = 0; vals[i] != NULL; i++ )
{
num = atol( slapi_value_get_string(vals[i]) );
num = int_to_canonical( num );
(*ivals)[i] = slapi_value_new();
slapi_value_set((*ivals)[i],&num,sizeof(long));
}
(*ivals)[i] = NULL;
return( 0 );
}
static int
int_assertion2keys( Slapi_PBlock *pb, Slapi_Value *val, Slapi_Value ***ivals, int ftype )
{
long num;
size_t len;
unsigned char *b;
Slapi_Value *tmpval=NULL;
num = atol( slapi_value_get_string(val) );
num = int_to_canonical( num );
/* similar to string.c to optimize equality path: avoid malloc/free */
if(ftype == LDAP_FILTER_EQUALITY_FAST) {
len=sizeof(long);
tmpval=(*ivals)[0];
if ( len > tmpval->bv.bv_len) {
tmpval->bv.bv_val=(char *)slapi_ch_malloc(len);
}
tmpval->bv.bv_len=len;
b = (unsigned char *)#
memcpy(tmpval->bv.bv_val,b,len);
} else {
*ivals = (Slapi_Value **) slapi_ch_malloc( 2 * sizeof(Slapi_Value *) );
(*ivals)[0] = (Slapi_Value *) slapi_ch_malloc( sizeof(Slapi_Value) );
/* XXXSD initialize memory */
memset((*ivals)[0],0,sizeof(Slapi_Value));
slapi_value_set((*ivals)[0],&num,sizeof(long));
(*ivals)[1] = NULL;
}
return( 0 );
}
static int int_compare(
struct berval *v1,
struct berval *v2
)
{
long value1 = atol(v1->bv_val);
long value2 = atol(v2->bv_val);
if (value1 == value2) {
return 0;
}
return ( ((value1 - value2) > 0) ? 1 : -1);
}
static long
int_to_canonical( long num )
{
long ret = 0L;
unsigned char *b = (unsigned char *)&ret;
b[0] = (unsigned char)(num >> 24);
b[1] = (unsigned char)(num >> 16);
b[2] = (unsigned char)(num >> 8);
b[3] = (unsigned char)num;
return ret;
}
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