From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <corinna@sourceware.org>
Received: by sourceware.org (Postfix, from userid 2155)
 id 82F663858423; Tue,  1 Mar 2022 15:24:10 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 82F663858423
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: quoted-printable
From: Corinna Vinschen <corinna@sourceware.org>
To: cygwin-cvs@sourceware.org
Subject: [newlib-cygwin/cygwin-3_3-branch] Cygwin: handle_sigprocmask: If new
 signal set is NULL, ignore "how"
X-Act-Checkin: newlib-cygwin
X-Git-Author: Corinna Vinschen <corinna@vinschen.de>
X-Git-Refname: refs/heads/cygwin-3_3-branch
X-Git-Oldrev: bf815ee399d98f7453a09b8fecdfdeb9c954fe4f
X-Git-Newrev: 4ee19860bd0b926528dd4d8624f43cb87a76273d
Message-Id: <20220301152410.82F663858423@sourceware.org>
Date: Tue,  1 Mar 2022 15:24:10 +0000 (GMT)
X-BeenThere: cygwin-cvs@cygwin.com
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Cygwin core component git logs <cygwin-cvs.cygwin.com>
List-Unsubscribe: <https://cygwin.com/mailman/options/cygwin-cvs>,
 <mailto:cygwin-cvs-request@cygwin.com?subject=unsubscribe>
List-Archive: <https://cygwin.com/pipermail/cygwin-cvs/>
List-Help: <mailto:cygwin-cvs-request@cygwin.com?subject=help>
List-Subscribe: <https://cygwin.com/mailman/listinfo/cygwin-cvs>,
 <mailto:cygwin-cvs-request@cygwin.com?subject=subscribe>
X-List-Received-Date: Tue, 01 Mar 2022 15:24:10 -0000

https://sourceware.org/git/gitweb.cgi?p=3Dnewlib-cygwin.git;h=3D4ee19860bd0=
b926528dd4d8624f43cb87a76273d

commit 4ee19860bd0b926528dd4d8624f43cb87a76273d
Author: Corinna Vinschen <corinna@vinschen.de>
Date:   Tue Mar 1 14:09:56 2022 +0100

    Cygwin: handle_sigprocmask: If new signal set is NULL, ignore "how"
   =20
    The "how" value only makes sense if a new set is given.  If we
    only read the current signal set, ignore the value of "how" per
    POSIX:
   =20
    "If set is a null pointer, the value of the argument how is not
    significant"
   =20
    Signed-off-by: Corinna Vinschen <corinna@vinschen.de>

Diff:
---
 winsup/cygwin/signal.cc | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/winsup/cygwin/signal.cc b/winsup/cygwin/signal.cc
index 2cf750f5c..9b6c2509d 100644
--- a/winsup/cygwin/signal.cc
+++ b/winsup/cygwin/signal.cc
@@ -205,15 +205,15 @@ sigprocmask (int how, const sigset_t *set, sigset_t *=
oldset)
 int __reg3
 handle_sigprocmask (int how, const sigset_t *set, sigset_t *oldset, sigset=
_t& opmask)
 {
-  /* check that how is in right range */
-  if (how !=3D SIG_BLOCK && how !=3D SIG_UNBLOCK && how !=3D SIG_SETMASK)
+  /* check that how is in right range if set is not NULL */
+  if (set && how !=3D SIG_BLOCK && how !=3D SIG_UNBLOCK && how !=3D SIG_SE=
TMASK)
     {
       syscall_printf ("Invalid how value %d", how);
       return EINVAL;
     }
=20
   __try
-	{
+    {
       if (oldset)
 	*oldset =3D opmask;