Module: wine Branch: master Commit: ec89a9302834938aa9620227591760d30b1791b3 URL: https://source.winehq.org/git/wine.git/?a=commit;h=ec89a9302834938aa96202275...
Author: Gabriel Ivăncescu gabrielopcode@gmail.com Date: Wed Jan 23 13:29:55 2019 +0200
kernel32/tests: Test partially overlapping buffers for MultiByteToWideChar.
Signed-off-by: Gabriel Ivăncescu gabrielopcode@gmail.com Signed-off-by: Alexandre Julliard julliard@winehq.org
---
dlls/kernel32/tests/codepage.c | 10 ++++++++++ 1 file changed, 10 insertions(+)
diff --git a/dlls/kernel32/tests/codepage.c b/dlls/kernel32/tests/codepage.c index b15a3a1..38f094f 100644 --- a/dlls/kernel32/tests/codepage.c +++ b/dlls/kernel32/tests/codepage.c @@ -314,12 +314,22 @@ static void test_overlapped_buffers(void) char buf[256]; int ret;
+ /* limit such that strA's NUL terminator overlaps strW's NUL */ + size_t overlap_limit = (sizeof(strW)-sizeof(strA)) - (sizeof(strW[0])-sizeof(strA[0])); + SetLastError(0xdeadbeef); memcpy(buf + 1, strW, sizeof(strW)); ret = WideCharToMultiByte(CP_ACP, 0, (WCHAR *)(buf + 1), -1, buf, sizeof(buf), NULL, NULL); ok(ret == sizeof(strA), "unexpected ret %d\n", ret); ok(!memcmp(buf, strA, sizeof(strA)), "conversion failed: %s\n", buf); ok(GetLastError() == 0xdeadbeef, "GetLastError() is %u\n", GetLastError()); + + SetLastError(0xdeadbeef); + memcpy(buf + overlap_limit, strA, sizeof(strA)); + ret = MultiByteToWideChar(CP_ACP, 0, buf + overlap_limit, -1, (WCHAR *)buf, sizeof(buf) / sizeof(WCHAR)); + ok(ret == ARRAY_SIZE(strW), "unexpected ret %d\n", ret); + ok(!memcmp(buf, strW, sizeof(strW)), "conversion failed: %s\n", wine_dbgstr_wn((WCHAR *)buf, ARRAY_SIZE(strW))); + ok(GetLastError() == 0xdeadbeef, "GetLastError() is %u\n", GetLastError()); }
static void test_string_conversion(LPBOOL bUsedDefaultChar)