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implement dschapers suggestions--better command, less subshells, and finer formatting

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Signed-off-by: Jacob Salmela <jacob.salmela@pi-hole.net>
This commit is contained in:
Jacob Salmela 2018-04-11 20:35:51 -05:00
parent 143e75d213
commit 5ffc3561ed
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GPG key ID: 1962FF1A5046135E
1 changed files with 12 additions and 5 deletions
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17
advanced/Scripts/piholeDebug.sh
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@ -652,15 +652,22 @@ check_required_ports() {
# Sort the addresses and remove duplicates
while IFS= read -r line; do
ports_in_use+=( "$line" )
done < <( lsof -i -P -n | awk -F' ' '/LISTEN/ {print $1, $9}' | sort -n | tr -d '[*]\r' | uniq | awk '{print $2, $1}' )
done < <( lsof -iTCP -sTCP:LISTEN -P -n +c 10 )
# Now that we have the values stored,
for i in "${!ports_in_use[@]}"; do
# loop through them and assign some local variables
local port_number
port_number="$(echo "${ports_in_use[$i]}" | awk '{print $1}')"
local service_name
service_name=$(echo "${ports_in_use[$i]}" | awk '{print $2}')
service_name=$(echo "${ports_in_use[$i]}" | awk '{print $1}')
local protocol_type
protocol_type=$(echo "${ports_in_use[$i]}" | awk '{print $5}')
local port_number
port_number="$(echo "${ports_in_use[$i]}" | awk '{print $9}')"
# Skip the line if it's the titles of the columns the lsof command produces
if [[ "${service_name}" == COMMAND ]]; then
continue
fi
# Use a case statement to determine if the right services are using the right ports
case "${port_number}" in
53) compare_port_to_service_assigned "${resolver}"
@ -670,7 +677,7 @@ check_required_ports() {
4711) compare_port_to_service_assigned "${ftl}"
;;
# If it's not a default port that Pi-hole needs, just print it out for the user to see
*) log_write "[${port_number}] is in use by ${service_name}";
*) log_write "${port_number} ${service_name} (${protocol_type})";
esac
done
}