diff options
Diffstat (limited to 'sysdeps/posix/sysv_signal.c')
-rw-r--r-- | sysdeps/posix/sysv_signal.c | 58 |
1 files changed, 0 insertions, 58 deletions
diff --git a/sysdeps/posix/sysv_signal.c b/sysdeps/posix/sysv_signal.c deleted file mode 100644 index 6893ec23e4..0000000000 --- a/sysdeps/posix/sysv_signal.c +++ /dev/null @@ -1,58 +0,0 @@ -/* Copyright (C) 1991-2017 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, see - <http://www.gnu.org/licenses/>. */ - -#include <errno.h> -#include <signal.h> -#include <string.h> /* For the real memset prototype. */ -#include <sigsetops.h> - -/* Tolerate non-threads versions of Posix */ -#ifndef SA_ONESHOT -#define SA_ONESHOT 0 -#endif -#ifndef SA_NOMASK -#define SA_NOMASK 0 -#endif -#ifndef SA_INTERRUPT -#define SA_INTERRUPT 0 -#endif - -/* Set the handler for the signal SIG to HANDLER, - returning the old handler, or SIG_ERR on error. */ -__sighandler_t -__sysv_signal (int sig, __sighandler_t handler) -{ - struct sigaction act, oact; - - /* Check signal extents to protect __sigismember. */ - if (handler == SIG_ERR || sig < 1 || sig >= NSIG) - { - __set_errno (EINVAL); - return SIG_ERR; - } - - act.sa_handler = handler; - __sigemptyset (&act.sa_mask); - act.sa_flags = SA_ONESHOT | SA_NOMASK | SA_INTERRUPT; - act.sa_flags &= ~SA_RESTART; - if (__sigaction (sig, &act, &oact) < 0) - return SIG_ERR; - - return oact.sa_handler; -} - -weak_alias (__sysv_signal, sysv_signal) |