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socket: bump listen() backlog to INT_MAX everywhere

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This is a rework of #24764 by Cristian Rodríguez
<crodriguez@owncloud.com>, which stalled.

Instead of assigning -1 we'll use a macro defined to INT_MAX however.
This commit is contained in:
Lennart Poettering
2023-06-13 10:15:59 +02:00
parent 39b5f49f28
commit 768fcd779f
12 changed files with 28 additions and 20 deletions
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13
man/systemd.socket.xml
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@@ -341,12 +341,13 @@
<varlistentry>
<term><varname>Backlog=</varname></term>
<listitem><para>Takes an unsigned integer argument. Specifies
the number of connections to queue that have not been accepted
yet. This setting matters only for stream and sequential
packet sockets. See
<citerefentry><refentrytitle>listen</refentrytitle><manvolnum>2</manvolnum></citerefentry>
for details. Defaults to SOMAXCONN (128).</para></listitem>
<listitem><para>Takes an unsigned 32bit integer argument. Specifies the number of connections to
queue that have not been accepted yet. This setting matters only for stream and sequential packet
sockets. See
<citerefentry><refentrytitle>listen</refentrytitle><manvolnum>2</manvolnum></citerefentry> for
details. Note that this value is silently capped by the <literal>net.core.somaxconn</literal> sysctl,
which typically defaults to 4096. By default this is set to 4294967295, so that the sysctl takes full
effect.</para></listitem>
</varlistentry>
<varlistentry>