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getaddrinfo emulation does not support AI_NUMERICSERV #74969

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getaddrinfo emulation does not support AI_NUMERICSERV#74969
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3.7 (EOL)end of lifeextension-modulesC modules in the Modules dirtype-bugAn unexpected behavior, bug, or error

Description

@smejkar
smejkar
mannequin
opened on Jun 27, 2017
BPO 30786
Nosy @benjaminp, @csabella, @smejkar
PRs
  • bpo-30786: getaddrinfo emulation does not support AI_NUMERICSERV #2437
    		•

    Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.

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    GitHub fields:

    assignee = None
closed_at = <Date 2019-06-02.16:04:29.076>
created_at = <Date 2017-06-27.10:40:08.523>
labels = ['extension-modules', 'type-bug', '3.7']
title = 'getaddrinfo emulation does not support AI_NUMERICSERV'
updated_at = <Date 2019-06-02.16:04:29.074>
user = 'https://github.com/smejkar'

    bugs.python.org fields:

    activity = <Date 2019-06-02.16:04:29.074>
actor = 'cheryl.sabella'
assignee = 'none'
closed = True
closed_date = <Date 2019-06-02.16:04:29.076>
closer = 'cheryl.sabella'
components = ['Extension Modules']
creation = <Date 2017-06-27.10:40:08.523>
creator = 'smejkar'
dependencies = []
files = []
hgrepos = []
issue_num = 30786
keywords = []
message_count = 3.0
messages = ['297020', '325323', '344294']
nosy_count = 3.0
nosy_names = ['benjamin.peterson', 'cheryl.sabella', 'smejkar']
pr_nums = ['2437']
priority = 'normal'
resolution = 'out of date'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue30786'
versions = ['Python 3.7']

    Activity

    1. smejkar commented on Jun 27, 2017

      @smejkar
      smejkarmannequin
      on Jun 27, 2017
      MannequinAuthor

      Modules/getaddrinfo.c should support AI_NUMERICSERV.

      Moreover, not supporting AI_NUMERICSERV may cause troubles on platforms where the getaddrinfo function is available but it's buggy (see configure.ac and Modules/socketmodule.c), because Modules/addrinfo.h does not #undef AI_NUMERICSERV and Modules/socketmodule.c exports AI_NUMERICSERV defined in a system header that may collide with another flag defined in Modules/addrinfo.h and confuse the user.

      ./configure --with-pydebug
Comment out HAVE_GETADDRINFO in pyconfig.h
Comment out ENABLE_IPV6 in pyconfig.h on platforms where getipnodebyname and friends are not available
make -j
./python
Python 3.7.0a0 (default, Jun 27 2017, 11:59:50) 
[GCC 4.7.2] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import socket
>>> socket.AI_NUMERICSERV
<AddressInfo.AI_ADDRCONFIG: 1024>
>>> socket.getaddrinfo(None, "http", flags=socket.AI_NUMERICSERV)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/home/radek/src/github/cpython/Lib/socket.py", line 743, in getaddrinfo
    for res in _socket.getaddrinfo(host, port, family, type, proto, flags):
socket.gaierror: [Errno 3] invalid value for ai_flags.
>>>
    2. smejkar
      added
      3.7 (EOL)end of life
      extension-modulesC modules in the Modules dir
      type-bugAn unexpected behavior, bug, or error
      on Jun 27, 2017

    3. benjaminp commented on Sep 14, 2018

      @benjaminp
      benjaminp
      on Sep 14, 2018
      Contributor

      What platform needs Modules/getaddrinfo.c these days?

    4. csabella commented on Jun 2, 2019

      @csabella
      csabella
      on Jun 2, 2019
      Contributor

      I'm going to close this as the OP hasn't provided a response to Benjamin's question. It can be re-opened if additional information is provided. Thanks!

    5. csabella
      closed this as completedon Jun 2, 2019
    6. ezio-melotti
      transferred this issue fromon Apr 10, 2022
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