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* [Bug libc/16208] New: getaddrinfo() does not detect invalid numeric services
@ 2013-11-23 15:59 shawnlandden at gmail dot com
  2013-11-23 16:24 ` [Bug libc/16208] " shawnlandden at gmail dot com
                   ` (4 more replies)
  0 siblings, 5 replies; 6+ messages in thread
From: shawnlandden at gmail dot com @ 2013-11-23 15:59 UTC (permalink / raw)
  To: glibc-bugs

https://sourceware.org/bugzilla/show_bug.cgi?id=16208

            Bug ID: 16208
           Summary: getaddrinfo() does not detect invalid numeric services
           Product: glibc
           Version: 2.17
            Status: NEW
          Severity: normal
          Priority: P2
         Component: libc
          Assignee: unassigned at sourceware dot org
          Reporter: shawnlandden at gmail dot com
                CC: drepper.fsp at gmail dot com

forwarded from Debian bug 192876

From: Martin Pool <mbp@sourcefrog.net>
To: Debian Bug Tracking System <submit@bugs.debian.org>
Subject: libc6: getaddrinfo() does not detect invalid numeric services
Date: Sun, 11 May 2003 13:00:17 +1000

Package: libc6
Version: 2.3.1-16
Severity: normal

By my reading of the getaddrinfo() manual (and also the Solaris
manpage) getaddrinfo() ought to return EAI_SERVICE when the requested
service is not available.  However, it does not seem to do this when
the service is a number, but out of the valid range 1-65535 for TCP
ports.

Here is a reproduction case:

------------------
#include <string.h>
#include <stdio.h>
#include <stdlib.h>

#include <sys/types.h>
#include <sys/socket.h>
#include <netdb.h>

/* try getaddrinfo */
int main(void)
{
    int err;
    struct addrinfo *res;
    struct addrinfo hints;

    bzero(&hints, sizeof hints);
     hints.ai_family = AF_INET; 
    hints.ai_socktype = SOCK_STREAM;
    hints.ai_flags = AI_PASSIVE;

    err = getaddrinfo(NULL, "80000", &hints, &res);
    printf("err=%d, %s\n", err, gai_strerror(err));

    return 0;
}
------------------

On my machine this returns 0, rather than the expected -8 "servname
not supported".

If I change "80000" to an invalid non-numeric string then the error
is flagged as expected.

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* [Bug libc/16208] getaddrinfo() does not detect invalid numeric services
  2013-11-23 15:59 [Bug libc/16208] New: getaddrinfo() does not detect invalid numeric services shawnlandden at gmail dot com
@ 2013-11-23 16:24 ` shawnlandden at gmail dot com
  2013-11-23 16:25 ` shawnlandden at gmail dot com
                   ` (3 subsequent siblings)
  4 siblings, 0 replies; 6+ messages in thread
From: shawnlandden at gmail dot com @ 2013-11-23 16:24 UTC (permalink / raw)
  To: glibc-bugs

https://sourceware.org/bugzilla/show_bug.cgi?id=16208

--- Comment #1 from Shawn Landden <shawnlandden at gmail dot com> ---
Created attachment 7299
  --> https://sourceware.org/bugzilla/attachment.cgi?id=7299&action=edit
proposed patch

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* [Bug libc/16208] getaddrinfo() does not detect invalid numeric services
  2013-11-23 15:59 [Bug libc/16208] New: getaddrinfo() does not detect invalid numeric services shawnlandden at gmail dot com
  2013-11-23 16:24 ` [Bug libc/16208] " shawnlandden at gmail dot com
@ 2013-11-23 16:25 ` shawnlandden at gmail dot com
  2013-12-04 13:33 ` neleai at seznam dot cz
                   ` (2 subsequent siblings)
  4 siblings, 0 replies; 6+ messages in thread
From: shawnlandden at gmail dot com @ 2013-11-23 16:25 UTC (permalink / raw)
  To: glibc-bugs

https://sourceware.org/bugzilla/show_bug.cgi?id=16208

Shawn Landden <shawnlandden at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Attachment #7299|0                           |1
        is obsolete|                            |

--- Comment #2 from Shawn Landden <shawnlandden at gmail dot com> ---
Created attachment 7300
  --> https://sourceware.org/bugzilla/attachment.cgi?id=7300&action=edit
proposed patch

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* [Bug libc/16208] getaddrinfo() does not detect invalid numeric services
  2013-11-23 15:59 [Bug libc/16208] New: getaddrinfo() does not detect invalid numeric services shawnlandden at gmail dot com
  2013-11-23 16:24 ` [Bug libc/16208] " shawnlandden at gmail dot com
  2013-11-23 16:25 ` shawnlandden at gmail dot com
@ 2013-12-04 13:33 ` neleai at seznam dot cz
  2014-02-07  2:53 ` [Bug network/16208] " jsm28 at gcc dot gnu.org
  2014-06-13 11:53 ` fweimer at redhat dot com
  4 siblings, 0 replies; 6+ messages in thread
From: neleai at seznam dot cz @ 2013-12-04 13:33 UTC (permalink / raw)
  To: glibc-bugs

https://sourceware.org/bugzilla/show_bug.cgi?id=16208

Ondrej Bilka <neleai at seznam dot cz> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |neleai at seznam dot cz

--- Comment #3 from Ondrej Bilka <neleai at seznam dot cz> ---
Could you send patch to libc-alpha@sourceware.org

You need to follow
https://sourceware.org/glibc/wiki/Contribution%20checklist

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* [Bug network/16208] getaddrinfo() does not detect invalid numeric services
  2013-11-23 15:59 [Bug libc/16208] New: getaddrinfo() does not detect invalid numeric services shawnlandden at gmail dot com
                   ` (2 preceding siblings ...)
  2013-12-04 13:33 ` neleai at seznam dot cz
@ 2014-02-07  2:53 ` jsm28 at gcc dot gnu.org
  2014-06-13 11:53 ` fweimer at redhat dot com
  4 siblings, 0 replies; 6+ messages in thread
From: jsm28 at gcc dot gnu.org @ 2014-02-07  2:53 UTC (permalink / raw)
  To: glibc-bugs

https://sourceware.org/bugzilla/show_bug.cgi?id=16208

Joseph Myers <jsm28 at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|libc                        |network

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* [Bug network/16208] getaddrinfo() does not detect invalid numeric services
  2013-11-23 15:59 [Bug libc/16208] New: getaddrinfo() does not detect invalid numeric services shawnlandden at gmail dot com
                   ` (3 preceding siblings ...)
  2014-02-07  2:53 ` [Bug network/16208] " jsm28 at gcc dot gnu.org
@ 2014-06-13 11:53 ` fweimer at redhat dot com
  4 siblings, 0 replies; 6+ messages in thread
From: fweimer at redhat dot com @ 2014-06-13 11:53 UTC (permalink / raw)
  To: glibc-bugs

https://sourceware.org/bugzilla/show_bug.cgi?id=16208

Florian Weimer <fweimer at redhat dot com> changed:

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

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end of thread, other threads:[~2014-06-13 11:53 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2013-11-23 15:59 [Bug libc/16208] New: getaddrinfo() does not detect invalid numeric services shawnlandden at gmail dot com
2013-11-23 16:24 ` [Bug libc/16208] " shawnlandden at gmail dot com
2013-11-23 16:25 ` shawnlandden at gmail dot com
2013-12-04 13:33 ` neleai at seznam dot cz
2014-02-07  2:53 ` [Bug network/16208] " jsm28 at gcc dot gnu.org
2014-06-13 11:53 ` fweimer at redhat dot com

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