emaste 0c4cd99556 pw usermod: Properly deal with empty secondary group lists (-G '')
"pw usermod someuser -G ''" is supposed make sure that someuser
doesn't have any secondary group memberships.

Previouly it was a nop because split_groups() only intitialised
"groups" if at least one group was specified. As a result the
existing secondary group memberships were kept.

PR:		221417
Submitted by:	Fabian Keil
Obtained from:	ElectroBSD
MFC after:	1 week
Relnotes:	yes
2017-08-19 00:19:23 +00:00
..
2016-03-26 11:41:35 +00:00
2015-06-13 19:20:56 +00:00
2016-12-10 12:48:48 +00:00
2016-03-26 11:41:35 +00:00
2015-10-09 14:55:55 +00:00

pw is a command-line driven passwd/group editor utility that provides
an easy and safe means of modifying of any/all fields in the system
password files, and has an add, modify and delete mode for user and
group records. Command line options have been fashioned to be similar
to those used by the Sun/shadow commands: useradd, usermod, userdel,
groupadd, groupmod, groupdel, but combines all operations within the
single command `pw'.

User add mode also provides a means of easily setting system useradd
defaults (see pw.conf.5), so that adding a user is as easy as issuing
the command "pw useradd <loginid>". Creation of a unique primary
group for each user and automatic membership in secondary groups
is fully supported.

This program may be FreeBSD specific, but should be trivial to port to
other bsd4.4 variants.

Author and maintainer: David L. Nugent, <davidn@blaze.net.au>

$FreeBSD$