1 /* $NetBSD: __sigaction14_sigtramp.c,v 1.9 2008/04/28 20:22:56 martin Exp $ */
4 * Copyright (c) 2002 The NetBSD Foundation, Inc.
7 * This code is derived from software contributed to The NetBSD Foundation
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
32 #include <sys/cdefs.h>
33 #if defined(LIBC_SCCS) && !defined(lint)
34 __RCSID("$NetBSD: __sigaction14_sigtramp.c,v 1.9 2008/04/28 20:22:56 martin Exp $");
35 #endif /* LIBC_SCCS and not lint */
37 #include <sys/types.h>
44 __weak_alias(__sigaction14
, __libc_sigaction14
)
45 #ifdef __LIBC12_SOURCE__
46 extern const int __sigtramp_sigcontext_1
[]
47 __weak_reference(__sigtramp_sigcontext_1
);
51 __libc_sigaction14(int sig
, const struct sigaction
*act
, struct sigaction
*oact
)
53 extern const int __sigtramp_siginfo_2
[];
56 * If no sigaction, use the "default" trampoline since it won't
60 return __sigaction_sigtramp(sig
, act
, oact
, NULL
, 0);
62 #ifdef __LIBC12_SOURCE__
64 * We select the non-SA_SIGINFO trampoline if SA_SIGINFO is not
65 * set in the sigaction.
67 if ((act
->sa_flags
& SA_SIGINFO
) == 0) {
69 int rv
= __sigaction_sigtramp(sig
, act
, oact
,
70 __sigtramp_sigcontext_1
, 1);
71 if (rv
>= 0 || errno
!= EINVAL
)
78 * If SA_SIGINFO was specified or the compatibility trampolines
79 * can't be used, use the siginfo trampoline.
81 return __sigaction_sigtramp(sig
, act
, oact
, __sigtramp_siginfo_2
, 2);