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advapi32/tests: Fix a buffer overflow when calling GetEventLogInformation.

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Thomas Faber 2014-08-11 20:01:53 +02:00 committed by Alexandre Julliard
parent d1749b548b
commit d6cc12d139
1 changed files with 10 additions and 9 deletions
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19
dlls/advapi32/tests/eventlog.c
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@ -130,7 +130,8 @@ static void test_info(void)
HANDLE handle;
BOOL ret;
DWORD needed;
EVENTLOG_FULL_INFORMATION efi;
BYTE buffer[2 * sizeof(EVENTLOG_FULL_INFORMATION)];
EVENTLOG_FULL_INFORMATION *efi = (void *)buffer;
if (!pGetEventLogInformation)
{
@ -161,26 +162,26 @@ static void test_info(void)
ok(GetLastError() == RPC_X_NULL_REF_POINTER, "Expected RPC_X_NULL_REF_POINTER, got %d\n", GetLastError());
SetLastError(0xdeadbeef);
ret = pGetEventLogInformation(handle, EVENTLOG_FULL_INFO, (LPVOID)&efi, 0, NULL);
ret = pGetEventLogInformation(handle, EVENTLOG_FULL_INFO, efi, 0, NULL);
ok(!ret, "Expected failure\n");
ok(GetLastError() == RPC_X_NULL_REF_POINTER, "Expected RPC_X_NULL_REF_POINTER, got %d\n", GetLastError());
SetLastError(0xdeadbeef);
needed = 0xdeadbeef;
efi.dwFull = 0xdeadbeef;
ret = pGetEventLogInformation(handle, EVENTLOG_FULL_INFO, (LPVOID)&efi, 0, &needed);
efi->dwFull = 0xdeadbeef;
ret = pGetEventLogInformation(handle, EVENTLOG_FULL_INFO, efi, 0, &needed);
ok(!ret, "Expected failure\n");
ok(GetLastError() == ERROR_INSUFFICIENT_BUFFER, "Expected ERROR_INSUFFICIENT_BUFFER, got %d\n", GetLastError());
ok(needed == sizeof(EVENTLOG_FULL_INFORMATION), "Expected sizeof(EVENTLOG_FULL_INFORMATION), got %d\n", needed);
ok(efi.dwFull == 0xdeadbeef, "Expected no change to the dwFull member\n");
ok(efi->dwFull == 0xdeadbeef, "Expected no change to the dwFull member\n");
/* Not that we care, but on success last error is set to ERROR_IO_PENDING */
efi.dwFull = 0xdeadbeef;
needed *= 2;
ret = pGetEventLogInformation(handle, EVENTLOG_FULL_INFO, (LPVOID)&efi, needed, &needed);
efi->dwFull = 0xdeadbeef;
needed = sizeof(buffer);
ret = pGetEventLogInformation(handle, EVENTLOG_FULL_INFO, efi, needed, &needed);
ok(ret, "Expected success\n");
ok(needed == sizeof(EVENTLOG_FULL_INFORMATION), "Expected sizeof(EVENTLOG_FULL_INFORMATION), got %d\n", needed);
ok(efi.dwFull == 0 || efi.dwFull == 1, "Expected 0 (not full) or 1 (full), got %d\n", efi.dwFull);
ok(efi->dwFull == 0 || efi->dwFull == 1, "Expected 0 (not full) or 1 (full), got %d\n", efi->dwFull);
CloseEventLog(handle);
}