mirror of
https://sourceware.org/git/glibc.git
synced 2025-11-03 20:53:13 +03:00
dab9837091
* sysdeps/unix/bsd/isatty.c (__isatty): Don't save and restore errno. * sysdeps/unix/bsd/ptsname.c (__ptsname_r): Return errno value from isatty unmodified. Reported by Bruno Haible <bruno@clisp.org>.
33 lines
1.1 KiB
C
33 lines
1.1 KiB
C
/* Copyright (C) 1991,95,96,97,2002 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, write to the Free
|
|
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
02111-1307 USA. */
|
|
|
|
#include <errno.h>
|
|
#include <unistd.h>
|
|
#include <sys/ioctl.h>
|
|
|
|
/* Return 1 if FD is a terminal, 0 if not. */
|
|
int
|
|
__isatty (fd)
|
|
int fd;
|
|
{
|
|
struct sgttyb term;
|
|
|
|
return __ioctl (fd, TIOCGETP, &term) == 0;
|
|
}
|
|
weak_alias (__isatty, isatty)
|