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Better resolv.conf parsing

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Fixes the error:

dnsmasq: bad command line options: bad IP address
This commit is contained in:
Kroese 2023-04-22 04:13:26 +02:00 committed by GitHub
parent fc1347e654
commit bbbb1f57f5
1 changed files with 8 additions and 2 deletions
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10
run/network.sh
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@ -133,11 +133,17 @@ configureNAT () {
NET_OPTS="-netdev tap,ifname=${VM_NET_TAP},script=no,downscript=no,id=hostnet0"
# Build DNS options from container /etc/resolv.conf
mapfile -t nameservers < <(grep '^nameserver' /etc/resolv.conf | sed 's/nameserver //')
searchdomains=$(grep '^search' /etc/resolv.conf | sed 's/search //' | sed 's/ /,/g')
if [ "$DEBUG" = "Y" ]; then
echo "/etc/resolv.conf:" && echo && cat /etc/resolv.conf && echo
fi
mapfile -t nameservers < <(grep '^nameserver' /etc/resolv.conf | sed 's/\t/ /g' | sed 's/nameserver //' | sed 's/ //g')
searchdomains=$(grep '^search' /etc/resolv.conf | sed 's/\t/ /g' | sed 's/search //' | sed 's/#.*//' | sed 's/\s*$//g' | sed 's/ /,/g')
domainname=$(echo "$searchdomains" | awk -F"," '{print $1}')
for nameserver in "${nameservers[@]}"; do
nameserver=$(echo "$nameserver" | sed 's/#.*//' )
if ! [[ "$nameserver" =~ .*:.* ]]; then
[[ -z "$DNS_SERVERS" ]] && DNS_SERVERS="$nameserver" || DNS_SERVERS="$DNS_SERVERS,$nameserver"
fi