Merge 'mingw-getcwd' into HEAD

This commit is contained in:
Johannes Schindelin
2018-06-08 13:42:30 +02:00
committed by Jameson Miller

View File

@@ -1101,8 +1101,32 @@ struct tm *localtime_r(const time_t *timep, struct tm *result)
char *mingw_getcwd(char *pointer, int len)
{
wchar_t wpointer[MAX_PATH];
if (!_wgetcwd(wpointer, ARRAY_SIZE(wpointer)))
wchar_t cwd[MAX_PATH], wpointer[MAX_PATH];
DECLARE_PROC_ADDR(kernel32.dll, DWORD, GetFinalPathNameByHandleW,
HANDLE, LPWSTR, DWORD, DWORD);
DWORD ret = GetCurrentDirectoryW(ARRAY_SIZE(cwd), cwd);
if (!ret || ret >= ARRAY_SIZE(cwd)) {
errno = ret ? ENAMETOOLONG : err_win_to_posix(GetLastError());
return NULL;
}
ret = GetLongPathNameW(cwd, wpointer, ARRAY_SIZE(wpointer));
if (!ret && GetLastError() == ERROR_ACCESS_DENIED &&
INIT_PROC_ADDR(GetFinalPathNameByHandleW)) {
HANDLE hnd = CreateFileW(cwd, 0,
FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, NULL,
OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, NULL);
if (hnd == INVALID_HANDLE_VALUE)
return NULL;
ret = GetFinalPathNameByHandleW(hnd, wpointer, ARRAY_SIZE(wpointer), 0);
CloseHandle(hnd);
if (!ret || ret >= ARRAY_SIZE(wpointer))
return NULL;
if (xwcstoutf(pointer, normalize_ntpath(wpointer), len) < 0)
return NULL;
return pointer;
}
if (!ret || ret >= ARRAY_SIZE(wpointer))
return NULL;
if (xwcstoutf(pointer, wpointer, len) < 0)
return NULL;