pw: Don't silently ignore unparsed command line arguments.

MFC after: 3 days
Reviewed by: allanjude
Differential Revision: https://reviews.freebsd.org/D45097

pw: Rename some enums.

Rename `M_PRINT` and `M_UPDATE` to `M_SHOW` and `M_MODIFY` to match the
names of the commands they represent. No functional change intended.

MFC after: 3 days
Reviewed by: allanjude
Differential Revision: https://reviews.freebsd.org/D45096

Remove $FreeBSD$: two-line .h pattern

Remove /^\s*\*\n \*\s+\$FreeBSD\$$\n/

pw: Ensure group membership is not duplicated

Fix the following problem:

1. A nonexistent user, someuser, is added to somegroup in /etc/group.
2. someuser is then created with membership in somegroup.

The entry for somegroup in /etc/group will then contain

somegroup:*:12345:someuser,someuser

With this fix, the entry will be

somegroup:*:12345:someuser

PR: 238995
Reviewed by: bapt, jrm
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D41076

spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD

The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch
up to that fact and revert to their recommended match of BSD-2-Clause.

Discussed with: pfg
MFC After: 3 days
Sponsored by: Netflix

pw: (file == NULL) check is always false in read_userconfig(), remove
it. Drop the now unused _PATH_PW_CONF definition. [1]

While here, change the last remaining hardcoded "/etc" to _PATH_PWD.

Noted by: glebius [1]
Reviewed by: eugen
Approved by: re (gjb), kib (mentor)
Differential Revision: https://reviews.freebsd.org/D17575

pw: respect path specified using -V when writing pw.conf, and -C is not
explicitly specified. -V path is already used to determine which file
to read default values from, so it's only logical to write them to the
same file.

PR: 231653
Reviewed by: eugen, bapt
Approved by: re (gjb), kib (mentor)
Differential Revision: https://reviews.freebsd.org/D17566

pw(8): correct expiration period handling and command line overrides
to preconfigured values for -e, -p and -w flags.

Use non-negative symbols instead of magic values
in passwd_val/pw_password functions.

PR: 223431
Submitted by: Yuri Pankov (in part, patch for the manual)
Reported by: mav (mentor)
MFC after: 3 days
Relnotes: yes

various: general adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

No functional change intended.

Remove usage of _WITH_GETLINE from usr.sbin

pw should sanitize the argument of -w.

Otherwise, it will silently disable the login for the selected account if
the argument is unrecognizable.

usr.sbin/pw/pw.h
usr.sbin/pw/pw_conf.c
usr.sbin/pw/pw_user.c
Use separate rules to validate boolean parameters and passwd
parameters. Error out if a password parameter cannot be parsed.

usr.sbin/pw/tests/Makefile
usr.sbin/pw/tests/crypt.c
usr.sbin/pw/tests/pw_useradd.sh
usr.sbin/pw/tests/pw_usermod.sh
Add tests for the validation. Also, enhance existing
password-related tests to actually validate that the correct hash is
written to master.passwd.

Reviewed by: bapt
MFC after: 4 weeks
Sponsored by: Spectra Logic Corp
Differential Revision: https://reviews.freebsd.org/D6840

Cleanup a bit includes

Remove dead code

Rewrite parsing subcommands arguments of pw(8)

Now each subcommands checks its arguments in a dedicated functions.

This helps improving input validation, code readability/maintainability
While here:
- Add a -y option to pw userdel/usermod so it can maintain NIS servers if
nispasswd is not defined in pw.conf(5)
- Allow pw -r <rootdir> to remove directory with userdel -r
- Fix bug when renaming a user which was not renaming the user name it groups
it is a member of.
- Only parse pw.conf(5) when needed.

Improve strtounum

Fix many style bugs
Better variable naming
Use C99 'restrict' were apropriate
Fix potential errno race

Submitted by: bde

Create a strtounum function using the same API as strtonum

This function returns uintmax_t
Use this function to convert to gid_t/uid_t

Separate usernext/groupnext from the main functions

Refactor input validation

Mutualize code to validate inputs of both 'user' and 'group' command
Test that the input name fits into MAXLOGNAME

Add a new global struct pwconf to store etcpath, rootdir and struct userconf

Do not add anymore -R and -V to arglist
Add an error message if both -V and -R are set in arguments

Instead of always casting the pw_checkname input to u_char * and casting it back
to char *, change pw_checkname to directly take char * in input

Simplify reading pw.conf(5) by using getline(3)

Teach pw(8) about how to use pw/gr API to reduce code duplication

MFC after: 2 months

Stop hard-coding default directory mode as 0777.

A new jail(8) with a configuration file, to replace the work currently done
by /etc/rc.d/jail.

Create the altix project branch. The altix project will add support
for the SGI Altix 350 to FreeBSD/ia64. The hardware used for porting
is a two-module system, consisting of a base compute module and a
CPU expansion module. SGI's NUMAFlex architecture can be an excellent
platform to test CPU affinity and NUMA-aware features in FreeBSD.

- Import the HEAD csup code which is the basis for the cvsmode work.

Add home directory creation mode to pw.conf(5) and be a bit
more specific about the effect of the current umask on -M.

The variable `arglist' has internal linkage in pw.c, don't declare it as extern
here.

Fix a harmless format string bogon and mark a function as __printflike().
There is still one instance of non-constant format string use inside that
function, but it's hard to fix.

MFC after: 1 week

Back out the previous change to the queue(3) interface.
It was not discussed and should probably not happen.

Requested by: msmith and others

Change the way that the queue(3) structures are declared; don't assume that
the type argument to *_HEAD and *_ENTRY is a struct.

Suggested by: phk
Reviewed by: phk
Approved by: mdodd

Add new functionality "lock" and "unlock" to provide a simple password
locking mechanism for users. This works by prepending the string
"*LOCKED*" to the password field in master.passwd to prevent successful
decoding.

$Id$ -> $FreeBSD$

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.

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.

Adds optional NIS passwd file updating and optionally rebuilding
NIS maps.

Suggested by: Peter Wemm

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.

Allow 8-bit characters in the passwd gecos field, and adds a paragraph
to the mangpage explaining the consequences (to be updated at a later
date after login class conf support is added).

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>