source: hybrid/branches/releng-10/nanobsd/files/usr/local/bin/ssh-copy-id

#!/bin/sh



# Shell script to install your public key on a remote machine

# Takes the remote machine name as an argument.

# Obviously, the remote machine must accept password authentication,

# or one of the other keys in your ssh-agent, for this to work.



ID_FILE="${HOME}/.ssh/id_rsa.pub"



if [ "-i" = "$1" ]; then

  shift

  # check if we have 2 parameters left, if so the first is the new ID file

  if [ -n "$2" ]; then

    if expr "$1" : ".*\.pub" >/dev/null; then

      ID_FILE="$1"

    else

      ID_FILE="$1.pub"

    fi

    shift         # and this should leave $1 as the target name

  fi

else

  if [ x$SSH_AUTH_SOCK != x ] && ssh-add -L >/dev/null 2>&1; then

    GET_ID="$GET_ID ssh-add -L"

  fi

fi



if [ -z "`eval $GET_ID`" ] && [ -r "${ID_FILE}" ] ; then

  GET_ID="cat ${ID_FILE}"

fi



if [ -z "`eval $GET_ID`" ]; then

  echo "$0: ERROR: No identities found" >&2

  exit 1

fi



if [ "$#" -lt 1 ] || [ "$1" = "-h" ] || [ "$1" = "--help" ]; then

  echo "Usage: $0 [-i [identity_file]] [user@]machine" >&2

  exit 1

fi



{ eval "$GET_ID" ; } | ssh $1 "umask 077; test -d .ssh || mkdir .ssh ; cat >> .ssh/authorized_keys" || exit 1



cat <<EOF

Now try logging into the machine, with "ssh '$1'", and check in:



  .ssh/authorized_keys



to make sure we haven't added extra keys that you weren't expecting.



EOF