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64 lines
2.1 KiB
C
64 lines
2.1 KiB
C
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/* Copyright (C) 1997 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include <signal.h>
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/* The difference here is that the sigaction structure used in the
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kernel is not the same as we use in the libc. Therefore we must
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translate it here. */
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#include <kernel_sigaction.h>
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extern int __syscall_sigaction (int, const struct kernel_sigaction *,
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struct kernel_sigaction *);
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/* If ACT is not NULL, change the action for SIG to *ACT.
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If OACT is not NULL, put the old action for SIG in *OACT. */
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int
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__sigaction (sig, act, oact)
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int sig;
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const struct sigaction *act;
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struct sigaction *oact;
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{
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struct kernel_sigaction k_sigact, k_osigact;
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int error;
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if (act)
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{
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k_sigact.sa_handler = act->sa_handler;
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k_sigact.sa_mask = act->sa_mask.__val[0];
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k_sigact.sa_flags = act->sa_flags;
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#ifdef HAVE_SA_RESTORER
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k_sigact.sa_restorer = act->sa_restorer;
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#endif
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}
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error = __syscall_sigaction (sig, act ? &k_sigact : 0,
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oact ? &k_osigact : 0);
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if (oact && error >= 0)
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{
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oact->sa_handler = k_osigact.sa_handler;
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oact->sa_mask.__val[0] = k_osigact.sa_mask;
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oact->sa_flags = k_osigact.sa_flags;
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#ifdef HAVE_SA_RESTORER
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oact->sa_restorer = k_osigact.sa_restorer;
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#endif
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}
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return error;
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}
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weak_alias (__sigaction, sigaction)
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