mosh-server

#!/usr/bin/env bash
# mosh-server wrapper for Kerberos/AFS home environment
#
# Author: Jaeho Shin <netj@cs.stanford.edu>
# Created: 2014-04-25
# Requires: readlink in GNU coreutils
set -eu

self=$(readlink -f "$0")
next=$(type -ap mosh-server | xargs -L1 readlink -f |
       grep -vxF "$self" | head -1)

# if Kerberos tickets are available
if klist &>/dev/null; then
    # put mosh-server in a Process Authentication Group getting an AFS Token
    pagsh -c 'aklog; exec "$@"' -- "$next" "$@"
else
    # otherwise, simply call next
    exec "$next" "$@"
fi