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/* signal.c - Generic signal implementation.
Copyright (C) 2008 Free Software Foundation, Inc.
Written by Neal H. Walfield <neal@gnu.org>.
This file is part of the GNU Hurd.
The GNU Hurd 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 3 of
the License, or (at your option) any later version.
The GNU Hurd 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 this program. If not, see
<http://www.gnu.org/licenses/>. */
#include "sig-internal.h"
void (*signal (int sig, void (*handler)(int)))(int)
{
struct sigaction sa;
sa.sa_handler = handler;
sa.sa_flags = SA_RESTART;
if (sigemptyset (&sa.sa_mask) < 0
|| sigaddset (&sa.sa_mask, sig) < 0)
return SIG_ERR;
struct sigaction osa;
if (sigaction (sig, &sa, &osa) < 0)
return SIG_ERR;
return osa.sa_handler;
}
void (*bsd_signal (int sig, void (*func)(int)))(int)
{
return signal (sig, func);
}
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