<p>This is useful to silence output in forked programs:<br>
<a href="https://bugzilla.redhat.com/show_bug.cgi?id=1287918">https://bugzilla.redhat.com/show_bug.cgi?id=1287918</a></p>

<p>Tested with the following scriptlet:</p>

<pre><code>%post -p <lua>
pid = posix.fork()
if pid == 0 then
    assert(posix.exec("/bin/sed"))
elseif pid > 0 then
    posix.wait(pid)
end
pid = posix.fork()
if pid == 0 then
    posix.close(2)
    io.open("/dev/null")
    assert(posix.exec("/bin/awk"))
elseif pid > 0 then
    posix.wait(pid)
end
</code></pre>

<p>As expected, the error message from sed is printed, the error message<br>
from awk is not.</p>

<hr>

<h4>You can view, comment on, or merge this pull request online at:</h4>
<p>  <a href='https://github.com/rpm-software-management/rpm/pull/44'>https://github.com/rpm-software-management/rpm/pull/44</a></p>

<h4>Commit Summary</h4>
<ul>
  <li>Add posix.close</li>
</ul>

<h4>File Changes</h4>
<ul>
  <li>
    <strong>M</strong>
    <a href="https://github.com/rpm-software-management/rpm/pull/44/files#diff-0">luaext/lposix.c</a>
    (8)
  </li>
</ul>

<h4>Patch Links:</h4>
<ul>
  <li><a href='https://github.com/rpm-software-management/rpm/pull/44.patch'>https://github.com/rpm-software-management/rpm/pull/44.patch</a></li>
  <li><a href='https://github.com/rpm-software-management/rpm/pull/44.diff'>https://github.com/rpm-software-management/rpm/pull/44.diff</a></li>
</ul>

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