Add and set up ping-he-tb

1 files changed, 45 insertions, 0 deletions

diff --git a/ping-he-tb b/ping-he-tb
new file mode 100755
index 0000000..b87f8b2
--- /dev/null
+++ b/ping-he-tb
@@ -0,0 +1,45 @@
+#!/bin/bash
+main () {
+	cd "$TMPDIR"
+
+	set +e
+	LIST=$(curl -sSL 'https://tunnelbroker.net/status.php' |
+		grep -Eo 'title="[0-9.]+"' |
+		grep -Eo '([0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3})')
+	set -e
+
+	for addr in $LIST
+	do
+		ping -qnc4 "$addr" > "$addr" &
+	done
+
+	set +e # ignore non-zero exit code from ping command
+	for addr in $LIST
+	do
+		wait
+	done
+	set -e
+
+	for addr in $LIST
+	do
+		avg=$(echo $(cat "$addr" |
+			grep -Eo 'rtt min/avg/max/mdev = [0-9.]+/[0-9.]+/[0-9.]+/[0-9.]+' |
+			grep -Eo '[0-9.]+') |
+				awk '{print $2}')
+		if [ -z "$avg" ]; then
+			avg="inf"
+		fi
+
+		echo "$avg	$addr"
+	done | sort -g
+}
+
+set -e
+TMPDIR=$(mktemp -d)
+set +e
+
+main & wait
+ec="$?"
+
+rm -rf "$TMPDIR"
+exit "$ec"