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msvcrt: Added support for _TRUNCATE flag in wcsncpy_s.

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This commit is contained in:
Piotr Caban 2012-04-12 16:19:31 +02:00 committed by Alexandre Julliard
parent f900ed1474
commit a80aec4c56
2 changed files with 14 additions and 3 deletions
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6
dlls/msvcrt/tests/string.c
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@ -682,6 +682,12 @@ static void test_wcscpy_s(void)
ret = p_wcsncpy_s(szDestShort, 8, szLongText, sizeof(szLongText)/sizeof(WCHAR));
ok(ret == ERANGE || ret == EINVAL, "expected ERANGE/EINVAL got %d\n", ret);
ok(szDestShort[0] == 0, "szDestShort[0] not 0\n");
szDest[0] = 'A';
ret = p_wcsncpy_s(szDest, 5, szLongText, -1);
ok(ret == STRUNCATE, "expected STRUNCATE got %d\n", ret);
ok(szDest[4] == 0, "szDest[4] not 0\n");
ok(!memcmp(szDest, szLongText, 4*sizeof(WCHAR)), "szDest = %s\n", wine_dbgstr_w(szDest));
}
static void test__wcsupr_s(void)

11
dlls/msvcrt/wcs.c
View File

@ -1230,6 +1230,7 @@ INT CDECL MSVCRT_wcsncpy_s( MSVCRT_wchar_t* wcDest, MSVCRT_size_t numElement, co
MSVCRT_size_t count )
{
MSVCRT_size_t size = 0;
INT ret = 0;
if (!wcDest || !numElement)
return MSVCRT_EINVAL;
@ -1242,8 +1243,12 @@ INT CDECL MSVCRT_wcsncpy_s( MSVCRT_wchar_t* wcDest, MSVCRT_size_t numElement, co
}
size = min(strlenW(wcSrc), count);
if (size >= numElement)
if (count==MSVCRT__TRUNCATE && size>=numElement)
{
ret = MSVCRT_STRUNCATE;
size = numElement-1;
}
else if (size >= numElement)
{
return MSVCRT_ERANGE;
}
@ -1251,7 +1256,7 @@ INT CDECL MSVCRT_wcsncpy_s( MSVCRT_wchar_t* wcDest, MSVCRT_size_t numElement, co
memcpy( wcDest, wcSrc, size*sizeof(WCHAR) );
wcDest[size] = '\0';
return 0;
return ret;
}
/******************************************************************