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Add bsd_signal as required by POSIX (from GSoC 2016, Charles Cui)

This commit is contained in:
christos 2016-06-03 23:57:37 +00:00
parent 56a6d73206
commit 0762ef8b4d
2 changed files with 20 additions and 3 deletions
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20
lib/libc/gen/signal.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: signal.c,v 1.13 2012/06/25 22:32:44 abs Exp $ */
/* $NetBSD: signal.c,v 1.14 2016/06/03 23:57:37 christos Exp $ */
/*
* Copyright (c) 1985, 1989, 1993
@ -34,7 +34,7 @@
#if 0
static char sccsid[] = "@(#)signal.c 8.1 (Berkeley) 6/4/93";
#else
__RCSID("$NetBSD: signal.c,v 1.13 2012/06/25 22:32:44 abs Exp $");
__RCSID("$NetBSD: signal.c,v 1.14 2016/06/03 23:57:37 christos Exp $");
#endif
#endif /* LIBC_SCCS and not lint */
@ -64,3 +64,19 @@ signal(int s, sig_t a)
return (SIG_ERR);
return (osa.sa_handler);
}
void
(*bsd_signal(int sig, void (*func)(int)))(int)
{
struct sigaction act, oact;
act.sa_handler = func;
act.sa_flags = SA_RESTART;
sigemptyset(&act.sa_mask);
sigaddset(&act.sa_mask, sig);
if (sigaction(sig, &act, &oact) < 0)
return (SIG_ERR);
return (oact.sa_handler);
}

3
sys/sys/signal.h
View File

@ -1,4 +1,4 @@
/* $NetBSD: signal.h,v 1.67 2011/01/10 13:56:44 christos Exp $ */
/* $NetBSD: signal.h,v 1.68 2016/06/03 23:57:37 christos Exp $ */
/*
* Copyright (c) 1982, 1986, 1989, 1991, 1993
@ -235,6 +235,7 @@ struct sigevent {
*/
__BEGIN_DECLS
void (*signal(int, void (*)(int)))(int);
void (*bsd_signal(int, void (*)(int)))(int);
#if (_POSIX_C_SOURCE - 0) >= 200112L || defined(_NETBSD_SOURCE)
int sigqueue(pid_t, int, const union sigval);
#endif