scripts/loginuser

   1 #!/bin/sh
   2
   3 # $1 user
   4 # $2 ttyN (without /dev)
   5 [ -z "$1" -o -z "$2" ] && echo "usage: $0 user ttyN (ttyN without /dev)" && exit 1
   6 if [ "$(tty)" != "/dev/$2" ]; then
   7     echo "use loginuser_openvt on other tty"
   8     exit 1
   9 fi
  10 [ "$2" = "$(echo "$2" | sed 's/^tty//')" ] && exit 1
  11 who | grep -q "^[^[:space:]]\+[[:space:]]\+$2[[:space:]]\+" && exit 1
  12 exec env TTYPERM=620 login -f $1 < /dev/$2 > /dev/$2