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hooklib/path.c: Hook RemoveDirectory

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- A certain game uses RemoveDirectory to clear out some data in the Y:
This commit is contained in:
Felix Anderson 2021-08-05 21:57:50 +00:00
parent da6879606a
commit 25f5ca944e
Signed by untrusted user: felix
GPG Key ID: 69ADF8AEB6C8B5D1
1 changed files with 52 additions and 0 deletions
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52
hooklib/path.c
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@ -93,6 +93,10 @@ static BOOL WINAPI hook_GetFileAttributesExW(
GET_FILEEX_INFO_LEVELS fInfoLevelId, GET_FILEEX_INFO_LEVELS fInfoLevelId,
void *lpFileInformation); void *lpFileInformation);
static BOOL WINAPI hook_RemoveDirectoryA(const char *lpFileName);
static BOOL WINAPI hook_RemoveDirectoryW(const wchar_t *lpFileName);
/* Link pointers */ /* Link pointers */
static BOOL (WINAPI *next_CreateDirectoryA)( static BOOL (WINAPI *next_CreateDirectoryA)(
@ -169,6 +173,10 @@ static BOOL (WINAPI *next_GetFileAttributesExW)(
GET_FILEEX_INFO_LEVELS fInfoLevelId, GET_FILEEX_INFO_LEVELS fInfoLevelId,
void *lpFileInformation); void *lpFileInformation);
static BOOL (WINAPI *next_RemoveDirectoryA)(const char *lpFileName);
static BOOL (WINAPI *next_RemoveDirectoryW)(const wchar_t *lpFileName);
/* Hook table */ /* Hook table */
static const struct hook_symbol path_hook_syms[] = { static const struct hook_symbol path_hook_syms[] = {
@ -228,6 +236,14 @@ static const struct hook_symbol path_hook_syms[] = {
.name = "GetFileAttributesExW", .name = "GetFileAttributesExW",
.patch = hook_GetFileAttributesExW, .patch = hook_GetFileAttributesExW,
.link = (void **) &next_GetFileAttributesExW, .link = (void **) &next_GetFileAttributesExW,
}, {
.name = "RemoveDirectoryA",
.patch = hook_RemoveDirectoryA,
.link = (void **) &next_RemoveDirectoryA,
}, {
.name = "RemoveDirectoryW",
.patch = hook_RemoveDirectoryW,
.link = (void **) &next_RemoveDirectoryW,
} }
}; };
@ -802,3 +818,39 @@ static BOOL WINAPI hook_GetFileAttributesExW(
return ok; return ok;
} }
static BOOL WINAPI hook_RemoveDirectoryA(const char *lpFileName)
{
char *trans;
BOOL ok;
ok = path_transform_a(&trans, lpFileName);
if (!ok) {
return FALSE;
}
ok = next_RemoveDirectoryA(trans ? trans : lpFileName);
free(trans);
return ok;
}
static BOOL WINAPI hook_RemoveDirectoryW(const wchar_t *lpFileName)
{
wchar_t *trans;
BOOL ok;
ok = path_transform_w(&trans, lpFileName);
if (!ok) {
return FALSE;
}
ok = next_RemoveDirectoryW(trans ? trans : lpFileName);
free(trans);
return ok;
}