From: "reeze (reeze xia)" <reeze.xia@...>
Date: 2012-08-07T01:48:00+09:00
Subject: [ruby-core:47022] [ruby-trunk - Bug #6831] test_getpwuid() on Mountain Lion


Issue #6831 has been updated by reeze (reeze xia).


Hi, 
  I got a question about Etc.getpwnam && Etc.getgrnam in Mac OS X, Both of them will return a found entry for empty string "".

Since they are related to Etc. so I posted here.

1.9.3p125 :007 > Etc.getpwnam("")
 => #<struct Struct::Passwd name="", passwd="", uid=0, gid=0, gecos="", dir="", shell="", change=0, uclass="", expire=0> 
1.9.3p125 :008 > Etc.getgrnam("")
 => #<struct Struct::Group name="", passwd="", gid=0, mem=[]> 

This didn't happen in other OS��� Does OSX have an empty user and group ?

Thanks
----------------------------------------
Bug #6831: test_getpwuid() on Mountain Lion 
https://bugs.ruby-lang.org/issues/6831#change-28681

Author: kosaki (Motohiro KOSAKI)
Status: Closed
Priority: Normal
Assignee: nobu (Nobuyoshi Nakada)
Category: ext
Target version: 2.0.0
ruby -v:  ruby 2.0.0dev (2012-08-04 trunk 36617) [x86_64-darwin12.0.0]


When using Mountain Lion, following test failure occur.

  1) Failure:
test_getpwuid(TestEtc) [/ruby/git/test/etc/test_etc.rb:34]:
<#<struct Struct::Passwd
 name="_appleevents",
 passwd="*",
 uid=55,
 gid=55,
 gecos="AppleEvents Daemon",
 dir="/var/empty",
 shell="/usr/bin/false",
 change=0,
 uclass="",
 expire=0>> expected but was
<#<struct Struct::Passwd
 name="_pcastagent",
 passwd="*",
 uid=55,
 gid=55,
 gecos="Podcast Producer Agent",
 dir="/var/pcast/agent",
 shell="/usr/bin/false",
 change=0,
 uclass="",
 expire=0>>.
------------------------------------------

getpwent() of Mountain Lion seems buggy. see below:

test_getpwent.c
-----------------------------------------
#include <sys/types.h>
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <pwd.h>

int main(void)
{
  struct passwd *ent;

  while((ent = getpwent()) != NULL) {
    if (ent->pw_uid == 55)
	printf("%s:%d:%s\n", ent->pw_name, ent->pw_uid, ent->pw_gecos);
  }

  return 0;
}


result
----------------
_appleevents:55:AppleEvents Daemon
_pcastagent:55:Podcast Producer Agent


mrkn, what do you think?




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