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[Bug network/9954] getaddrinfo assertion triggered without reason


http://sourceware.org/bugzilla/show_bug.cgi?id=9954

--- Comment #8 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot gnu.org> ---
       via  894f3f1049135dcbeaab8f18690973663ef3147c (commit)
      from  b85545a67110b236676aec8000f52d8385465660 (commit)

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https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=894f3f1049135dcbeaab8f18690973663ef3147c

commit 894f3f1049135dcbeaab8f18690973663ef3147c
Author: Allan McRae <allan@archlinux.org>
Date:   Fri Oct 25 14:25:38 2013 +1000

    Fix incorrect getaddrinfo assertion trigger

    [BZ #9954]

    With the following /etc/hosts:
    127.0.0.1       www.my-domain.es
    127.0.1.1       www.my-domain.es
    192.168.0.1     www.my-domain.es

    Using getaddrinfo() on www.my-domain.es, trigger the following assertion:
    ../sysdeps/posix/getaddrinfo.c:1473: rfc3484_sort: Assertion
    `src->results[i].native == -1 || src->results[i].native == a1_native'
failed.

    This is due to two different bugs:
    - In rfc3484_sort() rule 7, src->results[i].native is assigned even if
    src->results[i].index is -1, meaning that no interface is associated.
    - In getaddrinfo() the source IP address used with the lo interface needs a
    special case, as it can be any IP within 127.X.Y.Z.

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

Summary of changes:
 ChangeLog                   |    8 ++++++++
 sysdeps/posix/getaddrinfo.c |   13 ++++++++++---
 2 files changed, 18 insertions(+), 3 deletions(-)

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