[Bug network/18529] New: netdb.h addrinfo namespace

[Bug network/18529] New: netdb.h addrinfo namespace

[jsm28 at gcc dot gnu.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=18529

            Bug ID: 18529
           Summary: netdb.h addrinfo namespace
           Product: glibc
           Version: 2.21
            Status: NEW
          Severity: normal
          Priority: P2
         Component: network
          Assignee: unassigned at sourceware dot org
          Reporter: jsm28 at gcc dot gnu.org
  Target Milestone: ---

netdb.h declares interfaces such as getaddrinfo if __USE_POSIX, i.e.
POSIX.1:1990 or later.  However, these interfaces were new in the 2001 edition
of POSIX, although the header was in XPG4 and UNIX98, so they should not be
declared for XPG4 or UNIX98.  (This produces spurious linknamespace test
failures, although there are other failures for this header as well for the
same standards.)

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[Bug network/18529] netdb.h addrinfo namespace

[cvs-commit at gcc dot gnu.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=18529

--- Comment #1 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot gnu.org> ---
This is an automated email from the git hooks/post-receive script. It was
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the project "GNU C Library master sources".

The branch, master has been updated
       via  8737be806407be51f046b358d8824c4c968912de (commit)
      from  b400fdefc71ccc2a118ddfa78d3658d3ea3af7a2 (commit)

Those revisions listed above that are new to this repository have
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- Log -----------------------------------------------------------------
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=8737be806407be51f046b358d8824c4c968912de

commit 8737be806407be51f046b358d8824c4c968912de
Author: Joseph Myers <joseph@codesourcery.com>
Date:   Fri Jun 12 22:35:07 2015 +0000

    Fix netdb.h addrinfo namespace (bug 18529).

    netdb.h declares interfaces such as getaddrinfo if __USE_POSIX,
    i.e. POSIX.1:1990 or later.  However, these interfaces were new in the
    2001 edition of POSIX, although the header was in XPG4 and UNIX98, so
    they should not be declared for XPG4 or UNIX98.  (This produces
    spurious linknamespace test failures, although there are other
    failures for this header as well for the same standards so this patch
    doesn't remove any XFAILs.)  This patch corrects the condition, and
    the conform/ test expectations which were similarly wrong.

    Tested for x86_64 and x86 (testsuite, and that installed stripped
    shared libraries are unchanged by the patch).

        [BZ #18529]
        * resolv/netdb.h [__USE_POSIX]: Change condition to
        [__USE_XOPEN2K].
        * conform/data/netdb.h-data [XPG4 || UNIX98] (struct addrinfo): Do
        not expect.
        [XPG4 || UNIX98] (AI_PASSIVE): Likewise.
        [XPG4 || UNIX98] (AI_CANONNAME): Likewise.
        [XPG4 || UNIX98] (AI_NUMERICHOST): Likewise.
        [XPG4 || UNIX98] (AI_V4MAPPED): Likewise.
        [XPG4 || UNIX98] (AI_ALL): Likewise.
        [XPG4 || UNIX98] (AI_ADDRCONFIG): Likewise.
        [XPG4 || UNIX98] (AI_NUMERICSERV): Likewise.
        [XPG4 || UNIX98] (NI_NOFQDN): Likewise.
        [XPG4 || UNIX98] (NI_NUMERICHOST): Likewise.
        [XPG4 || UNIX98] (NI_NAMEREQD): Likewise.
        [XPG4 || UNIX98] (NI_NUMERICSERV): Likewise.
        [XPG4 || UNIX98] (NI_DGRAM): Likewise.
        [XPG4 || UNIX98] (EAI_AGAIN): Likewise.
        [XPG4 || UNIX98] (EAI_BADFLAGS): Likewise.
        [XPG4 || UNIX98] (EAI_FAIL): Likewise.
        [XPG4 || UNIX98] (EAI_FAMILY): Likewise.
        [XPG4 || UNIX98] (EAI_MEMORY): Likewise.
        [XPG4 || UNIX98] (EAI_NONAME): Likewise.
        [XPG4 || UNIX98] (EAI_SERVICE): Likewise.
        [XPG4 || UNIX98] (EAI_SOCKTYPE): Likewise.
        [XPG4 || UNIX98] (EAI_SYSTEM): Likewise.
        [XPG4 || UNIX98] (EAI_SYSTEM): Likewise.
        [XPG4 || UNIX98] (freeaddrinfo): Likewise.
        [XPG4 || UNIX98] (gai_strerror): Likewise.
        [XPG4 || UNIX98] (getaddrinfo): Likewise.
        [XPG4 || UNIX98] (getnameinfo): Likewise.

-----------------------------------------------------------------------

Summary of changes:
 ChangeLog                 |   32 ++++++++++++++++++++++++++++++++
 NEWS                      |    2 +-
 conform/data/netdb.h-data |    6 ++++++
 resolv/netdb.h            |    4 ++--
 4 files changed, 41 insertions(+), 3 deletions(-)

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[Bug network/18529] netdb.h addrinfo namespace

[jsm28 at gcc dot gnu.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=18529

Joseph Myers <jsm28 at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

--- Comment #2 from Joseph Myers <jsm28 at gcc dot gnu.org> ---
Fixed for 2.22.

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[Bug network/18529] netdb.h addrinfo namespace

[orion at cora dot nwra.com]

https://sourceware.org/bugzilla/show_bug.cgi?id=18529

Orion Poplawski <orion at cora dot nwra.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |orion at cora dot nwra.com

--- Comment #4 from Orion Poplawski <orion at cora dot nwra.com> ---
The man page for getaddrinfo() states:

   Feature Test Macro Requirements for glibc (see feature_test_macros(7)):

       getaddrinfo(), freeaddrinfo(), gai_strerror():
           _POSIX_C_SOURCE >= 1 || _XOPEN_SOURCE || _POSIX_SOURCE

Should _POSIX_SOURCE then be removed from that list as it no longer exposes
getaddrinfo()?

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[Bug network/18529] netdb.h addrinfo namespace

[orion at cora dot nwra.com]

https://sourceware.org/bugzilla/show_bug.cgi?id=18529

--- Comment #5 from Orion Poplawski <orion at cora dot nwra.com> ---
To get __USE_XOPEN2K looks like you need:

 _POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600

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[Bug network/18529] netdb.h addrinfo namespace

[orion at cora dot nwra.com]

https://sourceware.org/bugzilla/show_bug.cgi?id=18529

--- Comment #6 from Orion Poplawski <orion at cora dot nwra.com> ---
I've sent an email to the man-pages folks giving them the update.

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