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- #!/bin/sh
- #
- # /usr/local/bin/localresetpasswd
- # Copyright 2006 Jonas Smedegaard <dr@jones.dk>
- #
- # $Id: localresetpasswd,v 1.1 2006-08-31 22:51:03 jonas Exp $
- #
- # Generate random passphrase and apply to account through sudo
- #
- # TODO: Check for bad arguments
- # TODO: Use getopts to offer help
- # TODO: Support overriding options in /etc/local file
- #
- set -eu
- # these are overridable as environment variables
- PHRASE_LENGTH=${PHRASE_LENGTH:-3}
- WORD_LENGTH=${WORD_LENGTH:-11}
- VERBOSE=${VERBOSE:-yes}
- SIMULATE=${SIMULATE:-}
- simulate=${SIMULATE:+true}
- # echo something, but only if in verbose mode
- vecho() {
- test -n "$VERBOSE" && echo "$@" >&2
- }
- randompass() {
- xkcdpass -n "$PHRASE_LENGTH" 2>&- ||
- gpw 1 "$WORD_LENGTH" 2>&- ||
- pwgen "$WORD_LENGTH" 1 2>&- ||
- tr -d '\000-\057\072-\100\133-\140\173-\377' < /dev/urandom |
- dd bs="$WORD_LENGTH" count=1 status=none
- }
- u=$1
- shift
- vecho -n "Generating random passphrase..."
- pass=$(randompass)
- vecho " Done!"
- sudo=sudo
- [ "$(id -u)" -ne 0 ] || sudo=
- vecho -n "Applying new passphrase to account $u..."
- echo "$u:$pass" | $simulate $sudo "/usr/sbin/chpasswd"
- vecho " Done!"
- $simulate localresetpasswdexpiry "$u"
- vecho "New passphrase is $pass"
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