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msvcrt: Handle NULL arguments in _mbscmp.

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Hans Leidekker 2015-04-24 14:48:04 +02:00 committed by Alexandre Julliard
parent 07520fbf12
commit bbd0e56a58
2 changed files with 34 additions and 0 deletions
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3
dlls/msvcrt/mbcs.c
View File

@ -24,6 +24,7 @@
*/
#include <stdio.h>
#include <limits.h>
#include "msvcrt.h"
#include "wine/unicode.h"
@ -769,6 +770,8 @@ unsigned char* CDECL _mbsnbcpy(unsigned char* dst, const unsigned char* src, MSV
*/
int CDECL _mbscmp(const unsigned char* str, const unsigned char* cmp)
{
if (!str || !cmp) return INT_MAX;
if(get_mbcinfo()->ismbcodepage)
{
unsigned int strc, cmpc;

31
dlls/msvcrt/tests/string.c
View File

@ -2874,6 +2874,36 @@ static void test__wcsset_s(void)
ok(str[2] == 'b', "str[2] = %d\n", str[2]);
}
static void test__mbscmp(void)
{
static const unsigned char a[] = {'a',0}, b[] = {'b',0};
int ret;
if (!p_mbrlen)
{
win_skip("_mbscmp tests\n");
return;
}
ret = _mbscmp(NULL, NULL);
ok(ret == INT_MAX, "got %d\n", ret);
ret = _mbscmp(a, NULL);
ok(ret == INT_MAX, "got %d\n", ret);
ret = _mbscmp(NULL, a);
ok(ret == INT_MAX, "got %d\n", ret);
ret = _mbscmp(a, a);
ok(!ret, "got %d\n", ret);
ret = _mbscmp(a, b);
ok(ret == -1, "got %d\n", ret);
ret = _mbscmp(b, a);
ok(ret == 1, "got %d\n", ret);
}
START_TEST(string)
{
char mem[100];
@ -2981,4 +3011,5 @@ START_TEST(string)
test_strxfrm();
test__strnset_s();
test__wcsset_s();
test__mbscmp();
}