X-Git-Url: https://iankelling.org/git/?p=automated-distro-installer;a=blobdiff_plain;f=chost;h=18c0aacb1f0ec73f2ca956efa1aa12bb4f93be99;hp=3e1acd216f8cf5fe055641021c95844f7f53b070;hb=1b08e82a978c8db76e1ebc67f3b4ae875ba27537;hpb=f74458d51ebaeba827307920c7a66ed2d69d6fbd diff --git a/chost b/chost index 3e1acd2..18c0aac 100755 --- a/chost +++ b/chost @@ -7,7 +7,15 @@ set -eE -o pipefail trap 'echo "$0:$LINENO:error: \"$BASH_COMMAND\" returned $?" >&2' ERR host=$1 -addr=$(host $host | sed -rn 's/^.*has address (.*)/\1/p;T;q') +# ||: because if we are using 2+ resolvers, 1 may fail, causing error, but we still get +# a valid address and we just use that +addr=$(host $host | sed -rn 's/^\S+ has address //p;T;q' ||:) h=$(host $addr) +case $h in + *"no PTR record") + echo "error: chost: $h" >&2 + exit 1 + ;; +esac h=${h##* } -echo ${h%%.*} +echo $h