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[Bug libc/9700] New: a means to sort addrinfo list


Although it is not described by any standard I know there should be a way to
sort user provided list of addrinfo structures like getaddrinfo() does. 
It may be available either via a separate function sortaddrinfo() or via
getaddrinfo() with AI_SORT flag.

The former function would take the following arguments:
sortaddrinfo(struct addrinfo* list);
and it could be a short wrapper arount rfc3484_sort just to convert the list to
array and back again.

The latter one could be called like this
getaddrinfo(NULL, NULL, hints, list);

with AI_SORT set in hints.ai_flags and list being a linked list of addrinfo
structures.

There are some situations where such a facility would be very handy. For example
XEP-0065 provides a list of numeric addresses which should be sorted according
to RFC3484.

-- 
           Summary: a means to sort addrinfo list
           Product: glibc
           Version: unspecified
            Status: NEW
          Severity: enhancement
          Priority: P2
         Component: libc
        AssignedTo: drepper at redhat dot com
        ReportedBy: stlman at poczta dot fm
                CC: glibc-bugs at sources dot redhat dot com


http://sourceware.org/bugzilla/show_bug.cgi?id=9700

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