summary: Test for bz501595 ([RHEL4] getnameinfo() should return EAI_NONAME)
description: |
    Bug summary: [RHEL4] getnameinfo() should return EAI_NONAME when both nodename and servname are set to null and flag is set to NI_NAMEREQD
    Bugzilla link: https://bugzilla.redhat.com/show_bug.cgi?id=501595

    Description:

    +++ This bug was initially created as a clone of Bug #489419 +++

    Description of Problem:
    glibc getnameinfo() returns 0 when both nodename and servname are set to null and flag is set to 'NI_NAMEREQD'.

    The synopsis of function getnameinfo is:
           int getnameinfo(const struct sockaddr *sa, socklen_t salen, char *node, socklen_t nodelen, char *service, socklen_t servicelen, int flags);

    RFC3493 tells that getnameinfo() should returns 'EAI_NONAME' when both nodename and servname are null.  So when use getnameinfo() with both nodename and servname are null and the NI_NAMEREQD flag is set, glibc should return 'EAI_NONAME' rather than 0.


    Version-Release number of selected component:
    glibc-2.3.4-2.43


    How reproducible:
    every time


    Step to Reproduce:
    1. gcc function-nodename-servname-null.c
    2. ./a.out


    Actual Results:
    # ./a.out
    ==Both nodename and servname are null if the NI_NAMEREQD flag is set==
    ERROR:return 0, expect error EAI_NONAME
    <=== NG ===>


    Expected Results:
    # ./a.out
    ==Both nodename and servname are null if the NI_NAMEREQD flag is set==
    <=== OK ===>


    Additional Info:
    Upstream patch:
    http://sourceware.org/cgi-bin/cvsweb.cgi/libc/inet/getnameinfo.c.diff?r1=1.36&r2=1.37&cvsroot=glibc
contact: Petr Muller <pmuller@redhat.com>
component:
  - glibc
test: ./runtest.sh
framework: beakerlib
require:
  - gcc
  - glibc
duration: 30m
link:
  - relates: https://bugzilla.redhat.com/show_bug.cgi?id=501595
extra-summary: /tools/glibc/Regression/bz501595-RHEL4-getnameinfo-should-return-EAI-NONAME
extra-task: /tools/glibc/Regression/bz501595-RHEL4-getnameinfo-should-return-EAI-NONAME