cmd/shell: Use session_exec()

Now command arguments are separated and escaped naturally.

For example, the following commands work:

    $ sudo prokit shell $root printf 'arg: %s\n' foo bar
    arg: foo
    arg: bar
    $ sudo prokit shell $root printf 'arg: %s\n' 'foo bar'
    arg: foo bar
    $ sudo prokit shell $root printf "'ello world\n"
    'ello world

1 files changed, 2 insertions, 2 deletions

diff --git a/lib/cmd/shell.sh b/lib/cmd/shell.sh
index c2570e0..c6e0906 100644
--- a/lib/cmd/shell.sh
+++ b/lib/cmd/shell.sh
@@ -40,11 +40,11 @@ cmd_shell_main()
 	session_begin "${root}" . :
 	session_dir="/prokit/sessions/$(session_id)"
 	if [ ${#} -eq 0 ]; then
-		chroot "${root}" /bin/sh -c "cd '${session_dir}'; /bin/sh"
+		session_exec /bin/sh
 		printf '\n'
 		info "$(get_msg 'cmd_shell_exiting')"
 	else
-		chroot "${root}" /bin/sh -c "cd '${session_dir}'; ${*}"
+		session_exec "${@}"
 	fi
 	session_end
 }