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[Bug libc/4671] New: gethostbyname() cant resolve names starting/ending with "-"


gethostbyname() fails to resolve domain names with minus sign at beginning or end of domain name,
in example -kol.deviantart.com, while it can be resolved using host and nslookup.

example sessiong:

insa@devel:~$ ping -- -kol.deviantart.com
ping: unknown host -kol.deviantart.com

insa@devel:~$ host -- -kol.deviantart.com
-kol.deviantart.com has address 69.28.181.43

Breif look at linux iputils/ping.c shows that it's using gethostbyname() function.
So i wrote C test example that can be found at http://insa.pp.ru/files/bugs/gethost.c

Tested on Debian 3.1, Debian 4, FreeBSD 5.4. All i386.
Mac OS X not affected.

-- 
           Summary: gethostbyname() cant resolve names starting/ending with
                    "-"
           Product: glibc
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: libc
        AssignedTo: drepper at redhat dot com
        ReportedBy: nikolaeff at gmail dot com
                CC: glibc-bugs at sources dot redhat dot com


http://sourceware.org/bugzilla/show_bug.cgi?id=4671

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