| 1 | #!/bin/sh |
| 2 | # This script can be used as a "remote shell" command that is only |
| 3 | # capable of pretending to connect to "localhost". This is useful |
| 4 | # for testing or for running a local copy where the sender and the |
| 5 | # receiver needs to use different options (e.g. --fake-super). If |
| 6 | # we get a -l USER option, we try to use "sudo -u USER" to run the |
| 7 | # command. |
| 8 | |
| 9 | user='' |
| 10 | do_cd=y # Default path is user's home dir, just like ssh. |
| 11 | |
| 12 | while : ; do |
| 13 | case "$1" in |
| 14 | -l) user="$2"; shift; shift ;; |
| 15 | -l*) user=`echo "$1" | sed 's/^-l//'`; shift ;; |
| 16 | --no-cd) do_cd=n; shift ;; |
| 17 | -*) shift ;; |
| 18 | localhost) shift; break ;; |
| 19 | *) echo "lsh: unable to connect to host $1" 1>&2; exit 1 ;; |
| 20 | esac |
| 21 | done |
| 22 | |
| 23 | if [ "$user" ]; then |
| 24 | prefix='' |
| 25 | if [ $do_cd = y ]; then |
| 26 | home=`perl -e "print((getpwnam('$user'))[7])"` |
| 27 | prefix="cd '$home' &&" |
| 28 | fi |
| 29 | sudo -H -u "$user" sh -c "$prefix $*" |
| 30 | else |
| 31 | if [ $do_cd = y ]; then |
| 32 | cd || exit 1 |
| 33 | fi |
| 34 | eval "${@}" |
| 35 | fi |