[PATCH v2 3/4] kernel32: Allow GetModuleFileNameEx() to succeed on a WoW64 process.
Zebediah Figura
zfigura at codeweavers.com
Tue May 29 09:33:05 CDT 2018
From: Zebediah Figura <z.figura12 at gmail.com>
Signed-off-by: Zebediah Figura <z.figura12 at gmail.com>
---
dlls/kernel32/module.c | 29 ++++++++++++++++++++++++-----
dlls/psapi/tests/psapi_main.c | 5 +++++
2 files changed, 29 insertions(+), 5 deletions(-)
diff --git a/dlls/kernel32/module.c b/dlls/kernel32/module.c
index 41080aa..01d28a8 100644
--- a/dlls/kernel32/module.c
+++ b/dlls/kernel32/module.c
@@ -1812,17 +1812,36 @@ DWORD WINAPI K32GetModuleFileNameExW(HANDLE process, HMODULE module,
LPWSTR file_name, DWORD size)
{
LDR_MODULE ldr_module;
+ BOOL wow64;
DWORD len;
if (!size) return 0;
- if(!get_ldr_module(process, module, &ldr_module))
+ if (!IsWow64Process(process, &wow64))
return 0;
- len = ldr_module.FullDllName.Length / sizeof(WCHAR);
- if (!ReadProcessMemory(process, ldr_module.FullDllName.Buffer,
- file_name, min( len, size ) * sizeof(WCHAR), NULL))
- return 0;
+ if (sizeof(void *) == 8 && wow64)
+ {
+ LDR_MODULE32 ldr_module32;
+
+ if (!get_ldr_module32(process, module, &ldr_module32))
+ return 0;
+
+ len = ldr_module32.FullDllName.Length / sizeof(WCHAR);
+ if (!ReadProcessMemory(process, (void *)(DWORD_PTR)ldr_module32.FullDllName.Buffer,
+ file_name, min( len, size ) * sizeof(WCHAR), NULL))
+ return 0;
+ }
+ else
+ {
+ if (!get_ldr_module(process, module, &ldr_module))
+ return 0;
+
+ len = ldr_module.FullDllName.Length / sizeof(WCHAR);
+ if (!ReadProcessMemory(process, ldr_module.FullDllName.Buffer,
+ file_name, min( len, size ) * sizeof(WCHAR), NULL))
+ return 0;
+ }
if (len < size)
{
diff --git a/dlls/psapi/tests/psapi_main.c b/dlls/psapi/tests/psapi_main.c
index 782fb6f..8f65296 100644
--- a/dlls/psapi/tests/psapi_main.c
+++ b/dlls/psapi/tests/psapi_main.c
@@ -202,6 +202,11 @@ static void test_EnumProcessModules(void)
ok(ret, "got error %u\n", GetLastError());
ok(!strcmp(name, "notepad.exe"), "got %s\n", name);
+ ret = GetModuleFileNameExA(pi.hProcess, hMod, name, sizeof(name));
+ ok(ret, "got error %u\n", GetLastError());
+todo_wine
+ ok(!strcmp(name, buffer), "got %s\n", name);
+
TerminateProcess(pi.hProcess, 0);
}
else if (wow64)
--
2.7.4
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