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/*
ldb database library
Copyright (C) Andrew Tridgell 2004
** NOTE! The following LGPL license applies to the ldb
** library. This does NOT imply that all of Samba is released
** under the LGPL
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*
* Name: ldb
*
* Component: ldb utf8 handling
*
* Description: case folding and case comparison for UTF8 strings
*
* Author: Andrew Tridgell
*/
#include "includes.h"
#include "ldb/include/ldb.h"
#include "ldb/include/ldb_private.h"
#include <ctype.h>
/*
TODO:
a simple case folding function - will be replaced by a UTF8 aware function later
*/
char *ldb_casefold(void *mem_ctx, const char *s)
{
int i;
char *ret = talloc_strdup(mem_ctx, s);
if (!s) {
errno = ENOMEM;
return NULL;
}
for (i=0;ret[i];i++) {
ret[i] = toupper((unsigned char)ret[i]);
}
return ret;
}
/*
a caseless compare, optimised for 7 bit
TODO: doesn't yet handle UTF8
*/
int ldb_caseless_cmp(const char *s1, const char *s2)
{
int i;
for (i=0;s1[i] != 0;i++) {
int c1 = toupper((unsigned char)s1[i]),
c2 = toupper((unsigned char)s2[i]);
if (c1 != c2) {
return c1 - c2;
}
}
return s2[i];
}
/*
compare two attributes
return 0 for match
*/
int ldb_attr_cmp(const char *attr1, const char *attr2)
{
return ldb_caseless_cmp(attr1, attr2);
}
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