=?UTF-8?Q?Gabriel=20Iv=C4=83ncescu=20?=: kernel32/tests: Test partially overlapping buffers for MultiByteToWideChar.
Alexandre Julliard
julliard at winehq.org
Thu Jan 24 14:42:53 CST 2019
Module: wine
Branch: master
Commit: ec89a9302834938aa9620227591760d30b1791b3
URL: https://source.winehq.org/git/wine.git/?a=commit;h=ec89a9302834938aa9620227591760d30b1791b3
Author: Gabriel Ivăncescu <gabrielopcode at 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 at gmail.com>
Signed-off-by: Alexandre Julliard <julliard at 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)
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