From: Rich Felker <dalias@aerifal.cx>
Date: Sun, 3 Jun 2012 00:04:27 +0000 (-0400)
Subject: remove implementation-reserved bits when saving signal mask
X-Git-Url: http://nsz.repo.hu/git/?a=commitdiff_plain;ds=sidebyside;h=40bd1726b6aa93a8311a77a1fec6da0fe0489fd0;hp=40bd1726b6aa93a8311a77a1fec6da0fe0489fd0;p=musl

remove implementation-reserved bits when saving signal mask

this fix is necessary because a program could be started with some of
the implementation-reserved signals masked (e.g. due to exec having
been called from a signal handler, or from a non-musl program) and
then could obtain an invalid-to-use-later sigset_t as the old/saved
signal mask.
---