[Bug libc/12714] New: getaddrinfo(AF_INET6) does not return scope_id info provided by NSS modules

[Bug libc/12714] New: getaddrinfo(AF_INET6) does not return scope_id info provided by NSS modules

[mbabinski at google dot com]

http://sourceware.org/bugzilla/show_bug.cgi?id=12714

           Summary: getaddrinfo(AF_INET6) does not return scope_id info
                    provided by NSS modules
           Product: glibc
           Version: 2.13
            Status: NEW
          Severity: normal
          Priority: P2
         Component: libc
        AssignedTo: drepper.fsp@gmail.com
        ReportedBy: mbabinski@google.com


It looks like this is a problem caused by overeager optimization: gaih_inet()
falls back to using the faster _nss_*_gethostbyname2_r when the address family
is specified explicitly. This function is incapable of returning scope_id info,
so _gethostbyname4_r should be used whenever the NSS module implements it, and
there is a possibility that an AF_INET6 address needs to be returned.

Patch attached.

-- 
Configure bugmail: http://sourceware.org/bugzilla/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are on the CC list for the bug.

[Bug libc/12714] getaddrinfo(AF_INET6) does not return scope_id info provided by NSS modules

[mbabinski at google dot com]

http://sourceware.org/bugzilla/show_bug.cgi?id=12714

--- Comment #1 from Maciej Babinski <mbabinski at google dot com> 2011-04-28 19:58:55 UTC ---
Created attachment 5694
  --> http://sourceware.org/bugzilla/attachment.cgi?id=5694
Patch to resolve the issue.

-- 
Configure bugmail: http://sourceware.org/bugzilla/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are on the CC list for the bug.

[Bug libc/12714] getaddrinfo(AF_INET6) does not return scope_id info provided by NSS modules

[ppluzhnikov at google dot com]

http://sourceware.org/bugzilla/show_bug.cgi?id=12714

Paul Pluzhnikov <ppluzhnikov at google dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |ppluzhnikov at google dot
                   |                            |com

-- 
Configure bugmail: http://sourceware.org/bugzilla/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are on the CC list for the bug.

[Bug libc/12714] getaddrinfo(AF_INET6) does not return scope_id info provided by NSS modules

[drepper.fsp at gmail dot com]

http://sourceware.org/bugzilla/show_bug.cgi?id=12714

Ulrich Drepper <drepper.fsp at gmail dot com> changed:

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

--- Comment #2 from Ulrich Drepper <drepper.fsp at gmail dot com> 2011-05-03 01:11:59 UTC ---
I applied the patch with one more change.

-- 
Configure bugmail: http://sourceware.org/bugzilla/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are on the CC list for the bug.

[Bug libc/12714] getaddrinfo(AF_INET6) does not return scope_id info provided by NSS modules

[fweimer at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=12714

Florian Weimer <fweimer at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
              Flags|                            |security-

-- 
You are receiving this mail because:
You are on the CC list for the bug.