1 files changed, 49 insertions, 0 deletions
diff --git a/add-authorized-keys b/add-authorized-keys
new file mode 100755
index 0000000..a0add93
--- /dev/null
+++ b/add-authorized-keys
@@ -0,0 +1,49 @@
+#!/bin/sh
+
+### Add RSA keys to the authorized_keys file of a given user
+
+### Copyright (C) 2015 Rafael Laboissiere
+###
+### This program is free software; you can redistribute it and/or modify it under
+### the terms of the GNU General Public License as published by the Free Software
+### Foundation; either version 3 of the License, or (at your option) any later
+### version.
+###
+### This program is distributed in the hope that it will be useful, but WITHOUT
+### ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+### FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
+### details.
+###
+### You should have received a copy of the GNU General Public License along with
+### this program; if not, see <http://www.gnu.org/licenses/>.
+
+### Get the program name
+prog=${0##*/}
+
+### Ensure that the correct number of arguments are given
+if [ $# != 2 ] ; then
+    echo "Usage: $prog user file" 1>&2
+    exit 1
+fi
+
+### Get the input arguments and check their sanity
+user=$1
+rsaid=$2
+
+ret=false
+id -u $user >/dev/null 2>&1 && ret=true
+
+if [ $ret = false ] ; then
+    echo "$prog:E: User $user does not exist.  Add it first." 1>&2
+    exit 1
+fi
+
+type="OpenSSH RSA public key"
+if [ "$(file --brief $rsaid)" != "$type" ] ; then
+    echo "$prog:E: File $rsaid is not of type '$type'." 1>&2
+    exit 1
+fi
+
+### Install the key(s)
+home=$(getent passwd $user | cut -f6 -d:)
+cat $rsaid >> $home/.ssh/authorized_keys