bin/78087: groups program inconsistency

[Russ Francis]

The following reply was made to PR bin/78087; it has been noted by GNATS.

From: Russ Francis <russell.francis at gmail.com>
To: FreeBSD-gnats-submit at freebsd.org
Cc: Kevin Lyons <klyons at corserv.com>
Subject: Re: bin/78087: groups program inconsistency
Date: Mon, 28 Feb 2005 02:04:59 +0000

 Kevin,
 
 I saw this report and 78087 which looks similar and thought they looked curious.
 
 I have tried to duplicate this issue without luck and am running 
 
 FreeBSD 5.3-RELEASE-p2
 
 bash-2.05b$ sysctl kern.ngroups
 kern.ngroups: 16
 
 relevant portion of /etc/group
 --- snip ---
 foouser:*:1004:
 foo1:*:20001:foouser
 foo2:*:20002:foouser
 foo3:*:20003:foouser
 foo4:*:20004:foouser
 foo5:*:20005:foouser
 foo6:*:20006:foouser
 foo7:*:20007:foouser
 foo8:*:20008:foouser
 foo9:*:20009:foouser
 foo10:*:20010:foouser
 foo11:*:20011:foouser
 foo12:*:20012:foouser
 foo13:*:20013:foouser
 foo14:*:20014:foouser
 #foo15:*:20015:foouser
 
 
 su-2.05b$ whoami
 foouser
 su-2.05b$ id
 uid=1004(foouser) gid=1004(foouser) groups=1004(foouser), 20001(foo1),
 20002(foo2), 20003(foo3), 20004(foo4), 20005(foo5), 20006(foo6),
 20007(foo7), 20008(foo8), 20009(foo9), 20010(foo10), 20011(foo11),
 20012(foo12), 20013(foo13), 20014(foo14)
 su-2.05b$ id foouser
 uid=1004(foouser) gid=1004(foouser) groups=1004(foouser), 20001(foo1),
 20002(foo2), 20003(foo3), 20004(foo4), 20005(foo5), 20006(foo6),
 20007(foo7), 20008(foo8), 20009(foo9), 20010(foo10), 20011(foo11),
 20012(foo12), 20013(foo13), 20014(foo14)
 
 When I uncomment the line '#foo15:*:20015:foouser' from /etc/group
 I get the following error
 
 bash-2.05b$ su foouser
 Password:
 su: setusercontext: Invalid argument
 
 My results are different from yours, but also seem like a bug.  I am
 only able to be assigned to 15 groups despite kern.ngroups being equal
 to 16?   What is kern.ngroups set at for you?
 
 Cheers,
 Russ