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fix sigwaitinfo/sigtimedwait:

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-allow NULL "info" pointer
-return signal number
This commit is contained in:
drochner 2010-05-20 17:10:42 +00:00
parent 8cfbddcc72
commit 8239dc73b5
1 changed files with 5 additions and 3 deletions
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8
sys/kern/sys_sig.c
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@ -1,4 +1,4 @@
/* $NetBSD: sys_sig.c,v 1.26 2010/01/19 22:28:31 pooka Exp $ */
/* $NetBSD: sys_sig.c,v 1.27 2010/05/20 17:10:42 drochner Exp $ */
/*-
* Copyright (c) 2006, 2007, 2008 The NetBSD Foundation, Inc.
@ -66,7 +66,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: sys_sig.c,v 1.26 2010/01/19 22:28:31 pooka Exp $");
__KERNEL_RCSID(0, "$NetBSD: sys_sig.c,v 1.27 2010/05/20 17:10:42 drochner Exp $");
#include <sys/param.h>
#include <sys/kernel.h>
@ -742,9 +742,11 @@ out:
* Copy only the used part of siginfo, the padding part is
* left unchanged (userland is not supposed to touch it anyway).
*/
if (error == 0) {
if (error == 0 && SCARG(uap, info)) {
error = (*storeinf)(&ksi.ksi_info, SCARG(uap, info),
sizeof(ksi.ksi_info));
}
if (error == 0)
*retval = ksi.ksi_info._signo;
return error;
}