#!/bin/sh
#
# Produce netid.byname map file
#
# Written by O.Kirch, 1994.
#
PASSWD=$1
GROUP=$2
DOMAIN=$3

tempsed=/tmp/pass.$$

    # First, get all login/uid info from passwd file
    grep -v '^+' $PASSWD |
    awk -F: '{ printf "s/^%s:/%s/\n", $1, $3; }' >$tempsed
    # next one is a giant pipe:
    grep -v '^+' $GROUP |
    grep -v ':[ 	]*$' |
    sed 's/^[^:]*:[^:]*:\([0-9]*\):\(.*\)/\1,\2/' |
    	awk -F, '{ for (n=2; n<=NF; n++) 
    			if ($n != "") print $n":\t"$1;
    		 }' | 
    	sed -f $tempsed | sort | grep -v ':' | 
    	awk  'BEGIN { uid=-1; }
		    { if (uid == $1) {
		    	groups=groups","$2;
		      } else {
		        if (uid != -1)
		          print uid":"groups;
		        uid=$1; groups=$2;
		      }
		    }
	      END   { if (uid != -1) printf("%s:%s\n", uid, groups); }' |
	sed "s/\(.*\):/unix.\1@$DOMAIN	&/"
    	rm -f $tempsed
    	exit 0
