diff options
| author |   kurt <kurt@openbsd.org> | 2007-05-23 18:30:07 +0000 |
|---|---|---|
| committer | kurt <kurt@openbsd.org> | 2007-05-23 18:30:07 +0000 |
| commit | 99965f212083ea2e2175eb90a25b5f8eb91191d5 (patch) | |
| tree | 0b90210f9d97339e6dbdc745c6447972c5ff8f99 /lib/libc/gen/isatty.c | |
| parent | Add hack to prevent switching to serial console on four-digit B/C/J class (diff) | |
| download | wireguard-openbsd-99965f212083ea2e2175eb90a25b5f8eb91191d5.tar.xz wireguard-openbsd-99965f212083ea2e2175eb90a25b5f8eb91191d5.zip | |
Remove unnecessary locking. There is no need for serializing calls to
these functions and each use of the fd is already protected. No externally
visible changes. okay marc@ millert@
Diffstat (limited to 'lib/libc/gen/isatty.c')
| -rw-r--r-- | lib/libc/gen/isatty.c | 13 |
1 files changed, 2 insertions, 11 deletions
diff --git a/lib/libc/gen/isatty.c b/lib/libc/gen/isatty.c index a4c34d8b5c3..1915c6c3392 100644 --- a/lib/libc/gen/isatty.c +++ b/lib/libc/gen/isatty.c @@ -1,4 +1,4 @@ -/* $OpenBSD: isatty.c,v 1.6 2005/08/08 08:05:34 espie Exp $ */ +/* $OpenBSD: isatty.c,v 1.7 2007/05/23 18:30:07 kurt Exp $ */ /* * Copyright (c) 1988, 1993 * The Regents of the University of California. All rights reserved. @@ -29,20 +29,11 @@ */ #include <termios.h> -#include <unistd.h> -#include "thread_private.h" int isatty(int fd) { - int retval; struct termios t; - if (_FD_LOCK(fd, FD_READ, NULL) == 0) { - retval = (tcgetattr(fd, &t) != -1); - _FD_UNLOCK(fd, FD_READ); - } else { - retval = 0; - } - return(retval); + return (tcgetattr(fd, &t) != -1); } |