cstrcasecmp.c
1.52 KB
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/* This file is part of GNU Mailutils
Copyright (C) 2009-2012 Free Software Foundation, Inc.
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 3 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, see
<http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <stddef.h>
#include <mailutils/cctype.h>
int
mu_c_strcasecmp (const char *a, const char *b)
{
int d = 0;
for (; d == 0; a++, b++)
{
int ac = (int) *a;
int bc = (int) *b;
if (ac == 0 || bc == 0)
return ac - bc;
if (mu_isascii (ac) && mu_isascii (bc))
d = mu_toupper (ac) - mu_toupper (bc);
else
d = ac - bc;
}
return d;
}
int
mu_c_strncasecmp (const char *a, const char *b, size_t n)
{
int d = 0;
for (; d == 0 && n > 0; a++, b++, n--)
{
int ac = (int) *a;
int bc = (int) *b;
if (ac == 0 || bc == 0)
return ac - bc;
if (mu_isascii (ac) && mu_isascii (bc))
d = mu_toupper (ac) - mu_toupper (bc);
else
d = ac - bc;
}
return d;
}