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@homebysix homebysix/ip_addresses.sh
Last active Mar 18, 2019

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A Casper extension attribute that displays the active IP addresses of the Mac.
#!/bin/bash
###
#
# Name: ip_addresses.sh
# Description: A Casper extension attribute that displays the active IP
# addresses of the Mac.
# Author: Elliot Jordan <elliot@elliotjordan.com>
# Created: 2014-06-04
# Last Modified: 2015-03-18
# Version: 3.0.2
#
###
# Create result string.
RESULT=""
# Generate list of all active network device ports (e.g. en0, en1).
DEVICE_PORTS="$(ifconfig | awk -F: '/<UP,BROADCAST,SMART,RUNNING,/{print $1}' | sort 2> /dev/null)
$(ifconfig | awk -F: '/<UP,POINTOPOINT,RUNNING,/{print $1}' | sort 2> /dev/null)"
# Save output of networksetup for future lookup of friendly port names.
NETWORKSETUP=$(networksetup -listallhardwareports)
# Iterate through active ports.
for PORT in $DEVICE_PORTS; do
# Get IP address of this port.
THIS_IP=$(ifconfig "$PORT" | awk '/inet /{print $2}' 2> /dev/null)
# If the IP is not blank, then add its information to the result string.
if [[ "$THIS_IP" != "" ]]; then
THIS_NAME=$(echo "$NETWORKSETUP" | sed -n "/Device: $PORT/{g;1!p;};h" | awk '{print substr($0, index($0,$3))}')
# If the port doesn't have a name in networksetup, use "Other."
if [[ -z $THIS_NAME ]]; then
# For interfaces with no name in networksetup, we have to resort to system_profiler. Would love to combine this grep/head/awk. Open to suggestions.
THIS_NAME=$(system_profiler SPNetworkDataType | grep -B3 "BSD Device Name: $PORT" | head -1 | colrm 1 4 | awk -F: '{print $1}')
if [[ -z $THIS_NAME ]]; then
# If we still don't have a usable name, use "Other."
THIS_NAME="Other"
fi
fi
# Add a line feed between each port's output.
if [[ -n $RESULT ]]; then
RESULT+="
"
fi
RESULT+="$THIS_NAME ($PORT): $THIS_IP"
fi
done
# Send the result string back to the JSS.
echo "<result>$RESULT</result>"
exit 0
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