Commit 3cb43a08 authored by Andrew Nguyen's avatar Andrew Nguyen Committed by Alexandre Julliard

kernel32: Fail if a format placeholder is present without a format specifier in FormatMessageA/W.

parent b3350899
......@@ -297,8 +297,9 @@ static LPWSTR format_message( BOOL unicode_caller, DWORD dwFlags, LPCWSTR fmtstr
f++;
if (!*f) {
ADD_TO_T('%');
continue;
SetLastError(ERROR_INVALID_PARAMETER);
HeapFree(GetProcessHeap(), 0, target);
return NULL;
}
switch (*f) {
......@@ -433,6 +434,8 @@ DWORD WINAPI FormatMessageA(
}
target = format_message( FALSE, dwFlags, from, &format_args );
if (!target)
goto failure;
TRACE("-- %s\n", debugstr_w(target));
destlength = WideCharToMultiByte(CP_ACP, 0, target, -1, NULL, 0, NULL, NULL);
......@@ -522,6 +525,8 @@ DWORD WINAPI FormatMessageW(
}
target = format_message( TRUE, dwFlags, from, &format_args );
if (!target)
goto failure;
talloced = strlenW(target)+1;
TRACE("-- %s\n",debugstr_w(target));
......
......@@ -58,6 +58,8 @@ static void test_message_from_string_wide(void)
static const WCHAR t[] = {'t',0};
static const WCHAR e[] = {'e',0};
static const WCHAR s[] = {'s',0};
static const WCHAR fmt_null[] = {'%',0};
static const WCHAR fmt_tnull[] = {'t','e','s','t','%',0};
static const WCHAR fmt_1[] = {'%','1',0};
static const WCHAR fmt_12[] = {'%','1','%','2',0};
static const WCHAR fmt_123[] = {'%','1','%','3','%','2','%','1',0};
......@@ -121,6 +123,9 @@ static void test_message_from_string_wide(void)
static const WCHAR s_sp002sp003[] = {' ',' ','0','0','0','2',',',' ','0','0','0','0','3',0};
static const WCHAR s_sp001004[] = {' ',' ','0','0','1',',','0','0','0','0','0','4',0};
static const WCHAR init_buf[] = {'x', 'x', 'x', 'x', 'x', 'x'};
static const WCHAR broken_buf[] = {'t','e','s','t','x','x'};
WCHAR out[0x100] = {0};
DWORD r, error;
......@@ -139,6 +144,29 @@ static void test_message_from_string_wide(void)
ok(!lstrcmpW(test, out), "failed out=%s\n", wine_dbgstr_w(out));
ok(r==4, "failed: r=%d\n", r);
/* format placeholder with no specifier */
SetLastError(0xdeadbeef);
memcpy(out, init_buf, sizeof(init_buf));
r = FormatMessageW(FORMAT_MESSAGE_FROM_STRING, fmt_null, 0,
0, out, sizeof(out)/sizeof(WCHAR), NULL);
error = GetLastError();
ok(!memcmp(out, init_buf, sizeof(init_buf)),
"Expected the buffer to be unchanged\n");
ok(r==0, "succeeded: r=%d\n", r);
ok(error==ERROR_INVALID_PARAMETER, "last error %u\n", error);
/* test string with format placeholder with no specifier */
SetLastError(0xdeadbeef);
memcpy(out, init_buf, sizeof(init_buf));
r = FormatMessageW(FORMAT_MESSAGE_FROM_STRING, fmt_tnull, 0,
0, out, sizeof(out)/sizeof(WCHAR), NULL);
error = GetLastError();
ok(!memcmp(out, init_buf, sizeof(init_buf)) ||
broken(!memcmp(out, broken_buf, sizeof(broken_buf))), /* W2K3+ */
"Expected the buffer to be unchanged\n");
ok(r==0, "succeeded: r=%d\n", r);
ok(error==ERROR_INVALID_PARAMETER, "last error %u\n", error);
/* using the format feature */
r = doitW(FORMAT_MESSAGE_FROM_STRING, fmt_1s, 0,
0, out, sizeof(out)/sizeof(WCHAR), test);
......@@ -383,6 +411,7 @@ static void test_message_from_string(void)
{
CHAR out[0x100] = {0};
DWORD r;
static const char init_buf[] = {'x', 'x', 'x', 'x', 'x', 'x'};
static const WCHAR szwTest[] = { 't','e','s','t',0};
/* the basics */
......@@ -391,6 +420,28 @@ static void test_message_from_string(void)
ok(!strcmp("test", out),"failed out=[%s]\n",out);
ok(r==4,"failed: r=%d\n",r);
/* format placeholder with no specifier */
SetLastError(0xdeadbeef);
memcpy(out, init_buf, sizeof(init_buf));
r = FormatMessageA(FORMAT_MESSAGE_FROM_STRING, "%", 0,
0, out, sizeof(out)/sizeof(CHAR), NULL);
ok(!memcmp(out, init_buf, sizeof(init_buf)),
"Expected the buffer to be untouched\n");
ok(r==0, "succeeded: r=%d\n", r);
ok(GetLastError()==ERROR_INVALID_PARAMETER,
"last error %u\n", GetLastError());
/* test string with format placeholder with no specifier */
SetLastError(0xdeadbeef);
memcpy(out, init_buf, sizeof(init_buf));
r = FormatMessageA(FORMAT_MESSAGE_FROM_STRING, "test%", 0,
0, out, sizeof(out)/sizeof(CHAR), NULL);
ok(!memcmp(out, init_buf, sizeof(init_buf)),
"Expected the buffer to be untouched\n");
ok(r==0, "succeeded: r=%d\n", r);
ok(GetLastError()==ERROR_INVALID_PARAMETER,
"last error %u\n", GetLastError());
/* using the format feature */
r = doit(FORMAT_MESSAGE_FROM_STRING, "%1!s!", 0,
0, out, sizeof(out)/sizeof(CHAR), "test");
......
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