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Use POSIX

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Signed-off-by: Christian König <ckoenig@posteo.de>
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Christian König 2022-09-25 17:49:24 +02:00
parent bb57a9e616
commit 22ebf21487
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1 changed files with 12 additions and 8 deletions
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18
advanced/Scripts/piholeDebug.sh
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@ -678,20 +678,24 @@ ping_gateway() {
local protocol="${1}" local protocol="${1}"
ping_ipv4_or_ipv6 "${protocol}" ping_ipv4_or_ipv6 "${protocol}"
# Check if we are using IPv4 or IPv6 # Check if we are using IPv4 or IPv6
# Find the default gateway using IPv4 or IPv6 # Find the default gateways using IPv4 or IPv6
local gateway local gateway
mapfile -t gateway < <(ip -"${protocol}" route | grep default | grep "${PIHOLE_INTERFACE}" | cut -d ' ' -f 3)
# If the gateway array is not empty (meaning a gateway was found),
if [[ ${#gateway[@]} -ne 0 ]]; then
log_write "${INFO} Default IPv${protocol} gateway(s):" log_write "${INFO} Default IPv${protocol} gateway(s):"
for i in "${gateway[@]}"; do log_write " $i"; done
while IFS= read -r gateway; do
log_write " ${gateway}"
done < <(ip -"${protocol}" route | grep default | grep "${PIHOLE_INTERFACE}" | cut -d ' ' -f 3)
gateway=$(ip -"${protocol}" route | grep default | grep "${PIHOLE_INTERFACE}" | cut -d ' ' -f 3 | head -n 1)
# If there was at least one gateway
if [ -n "${gateway}" ]; then
# Let the user know we will ping the gateway for a response # Let the user know we will ping the gateway for a response
log_write " * Pinging first gateway ${gateway[0]}..." log_write " * Pinging first gateway ${gateway}..."
# Try to quietly ping the gateway 3 times, with a timeout of 3 seconds, using numeric output only, # Try to quietly ping the gateway 3 times, with a timeout of 3 seconds, using numeric output only,
# on the pihole interface, and tail the last three lines of the output # on the pihole interface, and tail the last three lines of the output
# If pinging the gateway is not successful, # If pinging the gateway is not successful,
if ! ${cmd} -c 1 -W 2 -n "${gateway[0]}" -I "${PIHOLE_INTERFACE}" >/dev/null; then if ! ${cmd} -c 1 -W 2 -n "${gateway}" -I "${PIHOLE_INTERFACE}" >/dev/null; then
# let the user know # let the user know
log_write "${CROSS} ${COL_RED}Gateway did not respond.${COL_NC} ($FAQ_GATEWAY)\\n" log_write "${CROSS} ${COL_RED}Gateway did not respond.${COL_NC} ($FAQ_GATEWAY)\\n"
# and return an error code # and return an error code