selftest/ns/nsenter-helper.sh

   1 #!/bin/sh
   2 #
   3 # Helper script that gets run with nsenter to manually setup a secondary shell
   4 # session to a given namespace testenv. This basically just sets up the same
   5 # environment variables as you normally get with selftest, for convenience.
   6
   7 if [ $# -lt 1 ]; then
   8         echo "Usage: $0 <exports-file>"
   9         exit 1
  10 fi
  11
  12 # we get passed a exports file with all the environment variables defined
  13 exports_file=$1
  14
  15 # read the exports file so the new shell has appropriate variables setup
  16 # (we export rather than sourcing here so they get inherited by the subshell)
  17 while read -r line; do
  18         export $line
  19         # dump them for the user too
  20         echo $line
  21 done <$exports_file
  22
  23 echo ""
  24 echo "Entered $NETBIOSNAME namespace, with above variables defined."
  25 echo "Use CTRL+D or exit to leave the namespace."
  26 echo ""
  27
  28 # start a shell session in the new namespace
  29 $SHELL