diff options
Diffstat (limited to 'win32/win32.c')
-rw-r--r-- | win32/win32.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/win32/win32.c b/win32/win32.c index abe3949600..944ff3a931 100644 --- a/win32/win32.c +++ b/win32/win32.c @@ -4088,6 +4088,10 @@ rb_w32_unlink(const char *path) int rb_w32_isatty(int fd) { + // validate fd by using _get_osfhandle() because we cannot access _nhandle + if (_get_osfhandle(fd) == -1) { + return 0; + } if (!(_osfile(fd) & FOPEN)) { errno = EBADF; return 0; |