freebsd-dev/usr.sbin/pw
Nate Williams 73375325b1 Fix race condition in pw caused by multiple instances of pwd_mkdb being
run at the same time.

Notes:
    The fileupdate function is still somewhat broken.  Instead of
    returning a failure code if it can't modify the original file it
    renames the .new file and continues as though nothing is wrong.
    This will cause the lock on the original file to be lost and could
    lead to a similar race condition.  I left that portion of the code
    alone since I feel that the maintainer of the code would have a
    better concept of how he wants to handle errors in that function
    than I do.

PR:		bin/6787
Submitted by:	Craig Spannring <cts@internetcds.com>
1998-07-16 17:18:25 +00:00
..
bitmap.c Use err(3) instead of local redefinition. Add rcsid string. 1997-10-10 06:23:42 +00:00
bitmap.h Revert $FreeBSD$ to $Id$ 1997-02-22 16:15:28 +00:00
cpdir.c Use err(3) instead of local redefinition. Add rcsid string. 1997-10-10 06:23:42 +00:00
edgroup.c Fix race condition in pw caused by multiple instances of pwd_mkdb being 1998-07-16 17:18:25 +00:00
fileupd.c Fix race condition in pw caused by multiple instances of pwd_mkdb being 1998-07-16 17:18:25 +00:00
grupd.c Use err(3) instead of local redefinition. Add rcsid string. 1997-10-10 06:23:42 +00:00
Makefile Revert $FreeBSD$ to $Id$ 1997-02-22 16:15:28 +00:00
psdate.c Use err(3) instead of local redefinition. Add rcsid string. 1997-10-10 06:23:42 +00:00
psdate.h Revert $FreeBSD$ to $Id$ 1997-02-22 16:15:28 +00:00
pw_conf.c Use err(3) instead of local redefinition. Add rcsid string. 1997-10-10 06:23:42 +00:00
pw_group.c Use err(3) instead of local redefinition. Add rcsid string. 1997-10-10 06:23:42 +00:00
pw_log.c Use err(3) instead of local redefinition. Add rcsid string. 1997-10-10 06:23:42 +00:00
pw_nis.c Use err(3) instead of local redefinition. Add rcsid string. 1997-10-10 06:23:42 +00:00
pw_user.c Use err(3) instead of local redefinition. Add rcsid string. 1997-10-10 06:23:42 +00:00
pw.8 .Nm pw -> .Nm. 1998-03-23 08:28:12 +00:00
pw.c Fix race condition in pw caused by multiple instances of pwd_mkdb being 1998-07-16 17:18:25 +00:00
pw.conf.5 Use consistent spelling, 1997-12-25 09:36:42 +00:00
pw.h Use err(3) instead of local redefinition. Add rcsid string. 1997-10-10 06:23:42 +00:00
pwupd.c pwd_mkdb option '-c' was renamed to -C some weeks ago. 1998-02-11 23:31:24 +00:00
pwupd.h Revert $FreeBSD$ to $Id$ 1997-02-22 16:15:28 +00:00
README Revert $FreeBSD$ to $Id$ 1997-02-22 16:15:28 +00:00
rm_r.c Use err(3) instead of local redefinition. Add rcsid string. 1997-10-10 06:23:42 +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 memberhip in secondary groups
is fully supported.

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

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

$Id$