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From: "jscott at posteo dot net" <sourceware-bugzilla@sourceware.org>
To: glibc-bugs@sourceware.org
Subject: [Bug network/30247] New: all socket options should be available with
 _XOPEN_SOURCE. not merely _GNU_SOURCE
Date: Mon, 20 Mar 2023 00:24:41 +0000
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X-Bugzilla-Product: glibc
X-Bugzilla-Component: network
X-Bugzilla-Version: 2.36
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D30247

            Bug ID: 30247
           Summary: all socket options should be available with
                    _XOPEN_SOURCE. not merely _GNU_SOURCE
           Product: glibc
           Version: 2.36
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: network
          Assignee: unassigned at sourceware dot org
          Reporter: jscott at posteo dot net
  Target Milestone: ---

Hi,

POSIX Issue 7 says that identifiers starting with 'SO' (no underscore requi=
red)
are reserved to the implementation (only if XSI conformance is requested;
_POSIX_C_SOURCE isn't good enough). Thus, that means it is safe to expose
socket options like SO_PROTOCOL, and in fact it would be helpful for
application maintainers who want to use this enhanced functionality (like m=
e!)

Note that SO_PROTOCOL in particular is planned for POSIX Issue 8, but this =
bug
is about unleashing all socket options to XSI applications.

Thanks

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