kdo/bashrc

   1 function kfindcache {
   2         klist -A | grep -A1 'Kerberos 5 ticket cache' | grep -iB1 "principal: .*$1" | head -n 1 | cut -f 2 -d "'"
   3 }
   4
   5 function kdo {
   6         local princ="$1"
   7         shift;
   8         local kinit_args="-l15m -r60m -F"
   9         local cache=`kfindcache "$princ"`
  10         if [ -n "$cache" ] && ! (KRB5CCNAME="$cache" klist -s "$cache"); then
  11                 KRB5CCNAME="$cache" kdestroy
  12                 cache=""
  13         fi
  14         if [ -z "$cache" ]; then
  15                 local oldcache=`klist | grep 'Kerberos 5 ticket cache' | cut -f 2 -d "'"`
  16                 kinit $kinit_args "$princ" || return 1
  17                 cache=`kfindcache "$princ"`
  18                 kswitch -c "$oldcache"
  19         fi
  20         echo "Running $1 with cache $cache (for principal $princ)" >&2
  21         KRB5CCNAME="$cache" "$@"
  22 }
  23
  24 function krootssh {
  25         kdo ${ATHENA_USER:-$USER}}/root@ATHENA.MIT.EDU ssh -o "GSSAPIDelegateCredentials no" "$@"
  26 }