diff options
Diffstat (limited to 'ext/POSIX/POSIX.xs')
| -rw-r--r-- | ext/POSIX/POSIX.xs | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/ext/POSIX/POSIX.xs b/ext/POSIX/POSIX.xs index 83f6452f9a..ce4c12cdb5 100644 --- a/ext/POSIX/POSIX.xs +++ b/ext/POSIX/POSIX.xs @@ -3499,8 +3499,13 @@ tcdrain(fd) close = 1 dup = 2 CODE: - RETVAL = ix == 1 ? close(fd) - : (ix < 1 ? tcdrain(fd) : dup(fd)); + if (fd >= 0) { + RETVAL = ix == 1 ? close(fd) + : (ix < 1 ? tcdrain(fd) : dup(fd)); + } else { + SETERRNO(EBADF,RMS_IFI); + RETVAL = -1; + } OUTPUT: RETVAL |