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hooklib/path.c: Hook FindFirstFileEx

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This commit is contained in:
Tau 2019-09-02 17:11:32 -04:00
parent 5c99ef1988
commit 3902757427
1 changed files with 102 additions and 0 deletions
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102
hooklib/path.c
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@ -45,6 +45,22 @@ static HANDLE WINAPI hook_CreateFileW(
uint32_t dwFlagsAndAttributes,
HANDLE hTemplateFile);
static HANDLE WINAPI hook_FindFirstFileExA(
const char *lpFileName,
FINDEX_INFO_LEVELS fInfoLevelId,
void *lpFindFileData,
FINDEX_SEARCH_OPS fSearchOp,
void *lpSearchFilter,
DWORD dwAdditionalFlags);
static HANDLE WINAPI hook_FindFirstFileExW(
const wchar_t *lpFileName,
FINDEX_INFO_LEVELS fInfoLevelId,
void *lpFindFileData,
FINDEX_SEARCH_OPS fSearchOp,
void *lpSearchFilter,
DWORD dwAdditionalFlags);
static DWORD WINAPI hook_GetFileAttributesA(const char *lpFileName);
static DWORD WINAPI hook_GetFileAttributesW(const wchar_t *lpFileName);
@ -87,6 +103,22 @@ static HANDLE WINAPI (*next_CreateFileW)(
uint32_t dwFlagsAndAttributes,
HANDLE hTemplateFile);
static HANDLE WINAPI (*next_FindFirstFileExA)(
const char *lpFileName,
FINDEX_INFO_LEVELS fInfoLevelId,
void *lpFindFileData,
FINDEX_SEARCH_OPS fSearchOp,
void *lpSearchFilter,
DWORD dwAdditionalFlags);
static HANDLE WINAPI (*next_FindFirstFileExW)(
const wchar_t *lpFileName,
FINDEX_INFO_LEVELS fInfoLevelId,
void *lpFindFileData,
FINDEX_SEARCH_OPS fSearchOp,
void *lpSearchFilter,
DWORD dwAdditionalFlags);
static DWORD WINAPI (*next_GetFileAttributesA)(const char *lpFileName);
static DWORD WINAPI (*next_GetFileAttributesW)(const wchar_t *lpFileName);
@ -120,6 +152,14 @@ static const struct hook_symbol path_hook_syms[] = {
.name = "CreateFileW",
.patch = hook_CreateFileW,
.link = (void **) &next_CreateFileW,
}, {
.name = "FindFirstFileExA",
.patch = hook_FindFirstFileExA,
.link = (void **) &next_FindFirstFileExA,
}, {
.name = "FindFirstFileExW",
.patch = hook_FindFirstFileExW,
.link = (void **) &next_FindFirstFileExW,
}, {
.name = "GetFileAttributesA",
.patch = hook_GetFileAttributesA,
@ -440,6 +480,68 @@ static HANDLE WINAPI hook_CreateFileW(
return result;
}
static HANDLE WINAPI hook_FindFirstFileExA(
const char *lpFileName,
FINDEX_INFO_LEVELS fInfoLevelId,
void *lpFindFileData,
FINDEX_SEARCH_OPS fSearchOp,
void *lpSearchFilter,
DWORD dwAdditionalFlags)
{
char *trans;
HANDLE result;
BOOL ok;
ok = path_transform_a(&trans, lpFileName);
if (!ok) {
return INVALID_HANDLE_VALUE;
}
result = next_FindFirstFileExA(
trans ? trans : lpFileName,
fInfoLevelId,
lpFindFileData,
fSearchOp,
lpSearchFilter,
dwAdditionalFlags);
free(trans);
return result;
}
static HANDLE WINAPI hook_FindFirstFileExW(
const wchar_t *lpFileName,
FINDEX_INFO_LEVELS fInfoLevelId,
void *lpFindFileData,
FINDEX_SEARCH_OPS fSearchOp,
void *lpSearchFilter,
DWORD dwAdditionalFlags)
{
wchar_t *trans;
HANDLE result;
BOOL ok;
ok = path_transform_w(&trans, lpFileName);
if (!ok) {
return INVALID_HANDLE_VALUE;
}
result = next_FindFirstFileExW(
trans ? trans : lpFileName,
fInfoLevelId,
lpFindFileData,
fSearchOp,
lpSearchFilter,
dwAdditionalFlags);
free(trans);
return result;
}
static DWORD WINAPI hook_GetFileAttributesA(const char *lpFileName)
{
char *trans;