From 69e72e68b75ec3adcf049c49405df6e8fb778a2d Mon Sep 17 00:00:00 2001
From: Neo_Chen <chenkolei@gmail.com>
Date: Sun, 26 Apr 2020 11:10:48 +0800
Subject: [PATCH] DNS: reverse record generator

---
 Misc                                          |  2 +-
 scripts/dns-reverse-generator.sh              | 31 +++++++++++++++++++
 .../homepage-update.sh                        |  0
 makegraph.sh => scripts/makegraph.sh          |  0
 4 files changed, 32 insertions(+), 1 deletion(-)
 create mode 100755 scripts/dns-reverse-generator.sh
 rename homepage-update.sh => scripts/homepage-update.sh (100%)
 rename makegraph.sh => scripts/makegraph.sh (100%)

diff --git a/Misc b/Misc
index 9a58f95..b2c08da 160000
--- a/Misc
+++ b/Misc
@@ -1 +1 @@
-Subproject commit 9a58f95630a22678cd9a02a6fcc5d1e54d2bff3a
+Subproject commit b2c08da8438078fd7f8ac167b57dcd57b6f0f9c6
diff --git a/scripts/dns-reverse-generator.sh b/scripts/dns-reverse-generator.sh
new file mode 100755
index 0000000..a9c025d
--- /dev/null
+++ b/scripts/dns-reverse-generator.sh
@@ -0,0 +1,31 @@
+#!/usr/bin/env bash
+set -e
+
+IPTOOL="$PWD/Misc/C/ip"
+
+if [ ! -x "$IPTOOL" ]; then
+	echo "You need to build Misc/C/ip first"
+	exit 1
+fi
+
+print_record()
+{
+	printf "%s\tIN\tPTR\t%s\n" "$1" "$2"
+}
+
+sed -i '/AUTOGENERATED/,$d' dns/db.10.127
+echo '; AUTOGENERATED' >> dns/db.10.127
+
+(
+cd route
+for i in *; do
+	source "$i"
+	if [ "$TYPE" = "TUN30" ]; then
+		upstream_ip=$("$IPTOOL" "$i" 1)
+		downstream_ip=$("$IPTOOL" "$i" 2)
+
+		print_record "$upstream_ip" "$UPSTREAM"
+		print_record "$downstream_ip" "$DOWNSTREAM"
+	fi
+done
+) | sort -n >> dns/db.10.127
diff --git a/homepage-update.sh b/scripts/homepage-update.sh
similarity index 100%
rename from homepage-update.sh
rename to scripts/homepage-update.sh
diff --git a/makegraph.sh b/scripts/makegraph.sh
similarity index 100%
rename from makegraph.sh
rename to scripts/makegraph.sh