Copy stable/9 to releng/9.3 as part of the 9.3-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

MFC r243896:
Use strdup instead of malloc + strcpy

Approved by: cperciva (mentor, implicit)

Copy head to stable/9 as part of 9.0-RELEASE release cycle.

Approved by: re (implicit)

Before updating the password database, the pw(8) utility first performs a
sanity check by invoking "pwd_mkdb -C". However, if this failed it
silently returned success. Fix this so it fails the update operation
instead.

MFC after: 1 week

Don't rely on NULL being a pointer, add a cast before passing it to a variadic
function.

Do not expose password if it is empty and PWF_STANDARD format is requested

MFC after: 1 week

Use correct mode for temporary file.

Reported by: ryan beasley <ryanb@goddamnbastard.org>

Handle snprintf() returning < 0 (not just -1)

MFC after: 2 weeks

Handle snprintf() returning -1.

MFC after: 2 weeks

Don't dereference NULL in the userdel case.

Second and hopefully final fix to .db sync when renaming a user; we must run
a full reindex in this case to remove the old record. #ifdef -u capability
since this is available on FreeBSD only.
PR: bin/16418
Problem pointed out by: Masachika ISHIZUKA <ishizuka@ish.org>

Fix db syncronization when username is changed with -l under usermod.
pw(8) was calling pwd_mkdb -u oldusername instead of newusername, so
the update appears to have failed until the next full pwd_mkdb
syncronization.

PR: bin/16418

Missed statement in password update relating to the previous change
to fileupdate() which prevented pwd_mkdb(1) from being run.

Clean up error handling in fileupdate(), which now returns 0 on success
instead of a boolean. This replicated through he front-end sub-functions
relating to add, delete, modify entries in passwd & group files
Errno is now preserved so output of errc()/warnc() will be less obfuscated
by subsequent errors when reporting the problem.

Add more intelligent error handling when attempting to modify/delete NIS
entries with no corresponding local database entry.

[MFC to stable in a couple of weeks to keep both in sync]

Only do a full pwd_mkdb for deletions; other operations may use the -u
option as an optimization.

PR: 13346
Submitted by: Neil Blakey-Milner <nbm@rucus.ru.ac.za>

$Id$ -> $FreeBSD$

1) Do not blindly ignore file update errors which may occur due to concurrent
updating
2) Add -V <etcdir>, which allows maintaining user/group database in alternate
locations other than /etc.

pwd_mkdb option '-c' was renamed to -C some weeks ago.

PR: bin/5715
Submitted by: dannyman <dannyman@arh0300.urh.uiuc.edu>

Use err(3) instead of local redefinition. Add rcsid string.

Revert $FreeBSD$ to $Id$

Make the long-awaited change from $Id$ to $FreeBSD$

This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.

Boy, I'm glad we're not using sup anymore. This update would have been
insane otherwise.

Remove duplicated #include.

1) 200 users per group limitation removed and pw
will handle lines of any length in /etc/group.
2) Fixed bug with usermod -d not updating user's home
directory.
3) Minor formatting display changes/fixes with *show -P.

This commit was generated by cvs2svn to compensate for changes in r20302,
which included commits to RCS files with non-trunk default branches.

Copyright update by the author, to be more in line with our sample
copyright.

Submitted by: David Nugent

Upgrade from the author, reflecting all my wishes resulting out of the
sysinstall use of this tool (plus some bug fixes).

2.2 candidate...

Submitted by: David Nugent <davidn@nserver.usn.blaze.net.au>

pw(8) -- a backend utility to manage the user and group databases.

sysinstall's new User&group menu will use it, hence it's a 2.2
candidate despite of providing new functionality.

Submitted by: David L. Nugent, <davidn@blaze.net.au>