diff options
Diffstat (limited to 'win32')
-rw-r--r-- | win32/win32.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/win32/win32.c b/win32/win32.c index f55fe9c278..35cb686d1c 100644 --- a/win32/win32.c +++ b/win32/win32.c @@ -5576,11 +5576,13 @@ rb_w32_uchmod(const char *path, int mode) int rb_w32_isatty(int fd) { + DWORD mode; + // validate fd by using _get_osfhandle() because we cannot access _nhandle if (_get_osfhandle(fd) == -1) { return 0; } - if (!(_osfile(fd) & FDEV)) { + if (!GetConsoleMode((HANDLE)_osfhnd(fd), &mode)) { errno = ENOTTY; return 0; } |