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contrib/dhcpcd/hooks/29-lookup-hostname
- This file was added.
| # Lookup the hostname in DNS if not set | |||||
| lookup_hostname() | |||||
| { | |||||
| [ -z "$new_ip_address" ] && return 1 | |||||
| # Silly ISC programs love to send error text to stdout | |||||
| if type dig >/dev/null 2>&1; then | |||||
| h=$(dig +short -x $new_ip_address) | |||||
| if [ $? = 0 ]; then | |||||
| echo "$h" | sed 's/\.$//' | |||||
| return 0 | |||||
| fi | |||||
| elif type host >/dev/null 2>&1; then | |||||
| h=$(host $new_ip_address) | |||||
| if [ $? = 0 ]; then | |||||
| echo "$h" \ | |||||
| | sed 's/.* domain name pointer \(.*\)./\1/' | |||||
| return 0 | |||||
| fi | |||||
| elif type getent >/dev/null 2>&1; then | |||||
| h=$(getent hosts $new_ip_address) | |||||
| if [ $? = 0 ]; then | |||||
| echo "$h" | sed 's/[^ ]* *\([^ ]*\).*/\1/' | |||||
| return 0 | |||||
| fi | |||||
| fi | |||||
| return 1 | |||||
| } | |||||
| set_hostname() | |||||
| { | |||||
| if [ -z "${new_host_name}${new_fqdn_name}" ]; then | |||||
| export new_host_name="$(lookup_hostname)" | |||||
| fi | |||||
| } | |||||
| if $if_up; then | |||||
| set_hostname | |||||
| fi | |||||