bin/getip: Add somewhat working utility

1 files changed, 72 insertions, 0 deletions

diff --git a/bin/getip b/bin/getip
new file mode 100755
index 0000000..c351d4f
--- /dev/null
+++ b/bin/getip
@@ -0,0 +1,72 @@
+#!/bin/sh
+set -eu
+
+usage() {
+	cat <<-'EOF'
+		Usage:
+		  getip [-4|-6]
+		  getip -h
+	EOF
+}
+
+help() {
+	cat <<-'EOF'
+
+
+		Options:
+		  -4            get IPv4
+		  -6            get IPv6 (default)
+		  -h, --help    show this message
+
+
+		The the internet facing IP address of the current machine.
+
+
+		Examples:
+
+		  Expose IPv6::
+
+		    $ echo "http://$(getip -6)/sub/" >> index.html
+	EOF
+}
+
+
+for flag in "$@"; do
+	case "$flag" in
+		--)
+			break
+			;;
+		--help)
+			usage
+			help
+			exit
+			;;
+		*)
+			;;
+	esac
+done
+
+V=6
+while getopts '46h' flag; do
+	case "$flag" in
+		4)
+			V=4
+			;;
+		6)
+			V=6
+			;;
+		h)
+			usage
+			help
+			exit
+			;;
+		*)
+			usage >&2
+			exit 2
+			;;
+	esac
+done
+shift $((OPTIND - 1))
+
+
+curl -s https://euandre.org/b/ipv"$V"