1 files changed, 41 insertions, 0 deletions
diff --git a/src.etc/network/functions b/src.etc/network/functions
new file mode 100644
index 0000000..b74fb91
--- /dev/null
+++ b/src.etc/network/functions
@@ -0,0 +1,41 @@
+#!/bin/sh
+
+case "${0}" in
+	/etc/network/if-*.d/*) ;;
+	*) exit 1;;
+esac
+if [ "x${IFACE}" = 'x' ]; then
+	exit 1
+fi
+
+get_iface_opts()
+{
+	local opts_start_cb="${1}"
+	local opt_cb="${2}"
+	local opts_end_cb="${3}"
+	local script=
+	local opts=
+	local opt=
+
+	script="$(printf '
+		/^iface[ \\t][ \\t]*%s/,/^[^ \\t]/{
+			/^$/q;
+			s/^[ \\t][ \\t]*//p;
+		}
+		' "${IFACE}")"
+
+	opts="$(sed -n "${script}" /var/run/net-ifaces)"
+	if [ "x${opts}" = 'x' ]; then
+		return 0
+	fi
+
+	${opts_start_cb}
+	while read -r opt; do
+		${opt_cb} ${opt}
+	done <<-EOF
+		${opts}
+		EOF
+	${opts_end_cb}
+
+	return 0
+}