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<h3>
Samuel Thibault pushed to branch master
at <a href="https://gitlab.freedesktop.org/slirp/libslirp">slirp / libslirp</a>
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<h4>
Commits:
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<strong><a href="https://gitlab.freedesktop.org/slirp/libslirp/-/commit/eee9db9d115d91aa82f33685c4e76d656db92976">eee9db9d</a></strong>
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<span>by Nathaniel Wesley Filardo</span>
<i>at 2021-01-20T17:09:48+00:00</i>
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<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">fork_exec_child_setup: improve signal handling
Blocked signal state is inherited across exec(), so let's zero that out rather
than inherit whatever it was when we spawned the child.
POSIX has some strange rules about SIG_IGN'd SIGCHLD across exec, so let's not
do that, just for consistency.
</pre>
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<strong><a href="https://gitlab.freedesktop.org/slirp/libslirp/-/commit/72654d84113c8b241028342b1b79d70220ff92bd">72654d84</a></strong>
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<span>by Samuel Thibault</span>
<i>at 2021-01-20T17:23:18+00:00</i>
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<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Merge branch 'master' into 'master'
fork_exec_child_setup: improve signal handling
See merge request slirp/libslirp!61</pre>
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<h4>1 changed file:</h4>
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<a href="#abdff8f039f1188a43bb283419da1b8c604958f7">
src/misc.c
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<h4>Changes:</h4>
<li id="abdff8f039f1188a43bb283419da1b8c604958f7">
<a href="https://gitlab.freedesktop.org/slirp/libslirp/-/compare/bacb71f1c3ed5f40e393afd8be81bedfba13a401...72654d84113c8b241028342b1b79d70220ff92bd#abdff8f039f1188a43bb283419da1b8c604958f7"><strong>src/misc.c</strong></a>
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<td class="diff-line-num unfold js-unfold new_line" data-linenumber="136" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -136,6 +136,14 @@ static void fork_exec_child_setup(gpointer data)</td>
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<pre style="margin: 0;"> <span id="LC136" class="line" lang="c"><span class="p">{</span></span>
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<td class="diff-line-num new_line" data-linenumber="137" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
137
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<pre style="margin: 0;"> <span id="LC137" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#ifndef _WIN32</span></span>
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<td class="diff-line-num old_line" data-linenumber="138" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
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<td class="diff-line-num new_line" data-linenumber="138" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
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<pre style="margin: 0;"> <span id="LC138" class="line" lang="c"> <span class="n" style="color: #333;">setsid</span><span class="p">();</span></span>
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<td class="diff-line-num new old_line" data-linenumber="139" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
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<td class="diff-line-num new new_line" data-linenumber="139" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
139
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<pre style="margin: 0;">+<span id="LC139" class="line" lang="c"></span>
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<td class="diff-line-num new old_line" data-linenumber="139" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
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<td class="diff-line-num new new_line" data-linenumber="140" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
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<pre style="margin: 0;">+<span id="LC140" class="line" lang="c"> <span class="cm" style="color: #998; font-style: italic;">/* Unblock all signals and leave our exec()-ee to block what it wants */</span></span>
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<td class="diff-line-num new old_line" data-linenumber="139" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
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<td class="diff-line-num new new_line" data-linenumber="141" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
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<pre style="margin: 0;">+<span id="LC141" class="line" lang="c"> <span class="n" style="color: #333;">sigset_t</span> <span class="n" style="color: #333;">ss</span><span class="p">;</span></span>
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<td class="diff-line-num new new_line" data-linenumber="142" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
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<pre style="margin: 0;">+<span id="LC142" class="line" lang="c"> <span class="n" style="color: #333;">sigemptyset</span><span class="p">(</span><span class="o" style="font-weight: 600;">&</span><span class="n" style="color: #333;">ss</span><span class="p">);</span></span>
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<td class="diff-line-num new new_line" data-linenumber="143" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
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<pre style="margin: 0;">+<span id="LC143" class="line" lang="c"> <span class="n" style="color: #333;">sigprocmask</span><span class="p">(</span><span class="n" style="color: #333;">SIG_SETMASK</span><span class="p">,</span> <span class="o" style="font-weight: 600;">&</span><span class="n" style="color: #333;">ss</span><span class="p">,</span> <span class="nb" style="color: #0086b3;">NULL</span><span class="p">);</span></span>
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<td class="diff-line-num new new_line" data-linenumber="144" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
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<pre style="margin: 0;">+<span id="LC144" class="line" lang="c"></span>
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<td class="diff-line-num new new_line" data-linenumber="145" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
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<pre style="margin: 0;">+<span id="LC145" class="line" lang="c"> <span class="cm" style="color: #998; font-style: italic;">/* POSIX is obnoxious about SIGCHLD specifically across exec() */</span></span>
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<td class="diff-line-num new new_line" data-linenumber="146" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
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<pre style="margin: 0;">+<span id="LC146" class="line" lang="c"> <span class="n" style="color: #333;">signal</span><span class="p">(</span><span class="n" style="color: #333;">SIGCHLD</span><span class="p">,</span> <span class="n" style="color: #333;">SIG_DFL</span><span class="p">);</span></span>
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<td class="diff-line-num new_line" data-linenumber="147" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
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<pre style="margin: 0;"> <span id="LC147" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#endif</span></span>
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<pre style="margin: 0;"> <span id="LC148" class="line" lang="c"><span class="p">}</span></span>
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<pre style="margin: 0;"> <span id="LC149" class="line" lang="c"></span>
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