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-rw-r--r--libc/signal/signal.c54
1 files changed, 29 insertions, 25 deletions
diff --git a/libc/signal/signal.c b/libc/signal/signal.c
index 463de1e50..7df88eff0 100644
--- a/libc/signal/signal.c
+++ b/libc/signal/signal.c
@@ -1,49 +1,53 @@
/* BSD-like signal function.
- Copyright (C) 1991, 1992, 1996, 1997, 2000 Free Software Foundation, Inc.
+ Copyright (C) 1991,1992,1996,1997,2000,2002,2005
+ 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 Library General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version.
+ 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
- Library General Public License for more details.
+ Lesser General Public License for more details.
- You should have received a copy of the GNU Library General Public
- License along with the GNU C Library; see the file COPYING.LIB. If not,
- write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ 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 <signal.h>
+#include <string.h> /* For the real memset prototype. */
-sigset_t _sigintr; /* Set by siginterrupt. */
+sigset_t _sigintr attribute_hidden; /* Set by siginterrupt. */
/* Set the handler for the signal SIG to HANDLER,
returning the old handler, or SIG_ERR on error. */
-__sighandler_t bsd_signal (int sig, __sighandler_t handler)
+__sighandler_t
+__bsd_signal (int sig, __sighandler_t handler)
{
- struct sigaction act, oact;
+ struct sigaction act, oact;
- /* Check signal extents to protect __sigismember. */
- if (handler == SIG_ERR || sig < 1 || sig >= NSIG)
+ /* Check signal extents to protect __sigismember. */
+ if (handler == SIG_ERR || sig < 1 || sig >= NSIG)
{
- __set_errno (EINVAL);
- return SIG_ERR;
+ __set_errno (EINVAL);
+ return SIG_ERR;
}
- act.sa_handler = handler;
- if (__sigemptyset (&act.sa_mask) < 0
- || __sigaddset (&act.sa_mask, sig) < 0)
- return SIG_ERR;
- act.sa_flags = __sigismember (&_sigintr, sig) ? 0 : SA_RESTART;
- if (sigaction (sig, &act, &oact) < 0)
- return SIG_ERR;
+ act.sa_handler = handler;
+ if (__sigemptyset (&act.sa_mask) < 0
+ || __sigaddset (&act.sa_mask, sig) < 0)
+ return SIG_ERR;
+ act.sa_flags = __sigismember (&_sigintr, sig) ? 0 : SA_RESTART;
+ if (sigaction (sig, &act, &oact) < 0)
+ return SIG_ERR;
- return oact.sa_handler;
+ return oact.sa_handler;
}
-weak_alias (bsd_signal, signal)
+weak_alias (__bsd_signal, bsd_signal)
+weak_alias (__bsd_signal, signal)