/usr/sbin/blend-user is in blends-common 0.6.96.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77  | #!/bin/bash
#
# $Id$
usage () {
   echo "Usage:   `basename $0` <action> <Blend> <user> [<Role>]"
   echo	"action:  add|del"
   echo "Blend:   `getBlendList|tr ' ' '|'`"
   echo "user:    user of the system who should be added to the Blend"
   echo "Role:    a registered Role for specified Blend" 
   echo "          (default: the one named like Blend)"
}
# the base dir for Blend conffiles, where script expects to find dirs named like
# each registered Blend
CONFBASE=${CONFBASE:-/etc/blends}
# a local per Blend conf is sourced later, after argoument parsing
. ${CONFBASE}/blends.conf
# Check consistency of passed argouments
if [ $# -eq 0 ] ; then
   usage
   exit 67 # EX_USAGE
fi
if [ "`toLower $1`" != "add" -a "`toLower $1`" != "del" ] ; then
   echo "Missing or wrong action name."
   echo
   usage
   exit 67 # EX_USAGE
fi
if [ -z "$2" ] ; then
   echo "Missing blend name."
   echo
   usage
   exit 67 # EX_USAGE
fi
if [ -z "$3" ] ; then
   echo "Missing user name."
   echo
   usage
   exit 67 # EX_USAGE
fi
ACTION=$1
BLEND=$2
BLENDUSER=$3
ROLE=${4:-${BLEND}}
# Now that we know the selected Blend, we can check if there is a local
# configuration for it (ie differnt backend from the default one)
test -n "${BLEND}" -a  -f ${CONFBASE}/${BLEND}/${BLEND}.conf &&
	. ${CONFBASE}/${BLEND}/${BLEND}.conf
if [ -n "${DBBACKEND}" ]; then
	set -e
	checkBlend ${BLEND} || blendFail $? "Debian Pure Blend ${BLEND} does not exist"
	checkUser ${BLENDUSER} || blendFail $? "User ${BLENDUSER} does not exist"
	checkRole ${ROLE} || blendFail $? "Role ${ROLE} does not exist"
	checkRoleInBlend ${BLEND} ${ROLE} || \
			blendFail $? "Blend (${BLEND}) and Role (${ROLE}) are not correct or incompatible with the selected backend"
	if [ "`toLower ${ACTION}`" = "add" ]; then
		setUserRole ${BLEND} ${BLENDUSER} ${ROLE} || \
			blendFail $? "Failed to set user ${BLENDUSER} to role ${ROLE}"
	elif [ "`toLower ${ACTION}`" = "del" ]; then
		unsetUserRole ${BLEND} ${BLENDUSER} ${ROLE} || \
			blendFail $? "Failed to unset user ${BLENDUSER} to role ${ROLE}"
	fi	
	set +e
else
	# EX_USAGE
	blendFail 67 "You choose to not use Roles"
fi
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