From ebbf53085c9cba4b9bf4cc1d2860711bcfb1ee83 Mon Sep 17 00:00:00 2001
From: Jeff Becker <ampernand@gmail.com>
Date: Fri, 25 Nov 2016 09:55:22 -0500
Subject: [PATCH] add routerinfo tool

---
 Makefile       |  5 ++-
 i2pd           |  2 +-
 routerinfo.cpp | 92 ++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 97 insertions(+), 2 deletions(-)
 create mode 100644 routerinfo.cpp

diff --git a/Makefile b/Makefile
index f006ad6..a208970 100644
--- a/Makefile
+++ b/Makefile
@@ -11,7 +11,10 @@ OBJECTS = $(SOURCES:.cpp=.o)
 I2PD_LIB = libi2pd.a
 
 
-all: keygen keyinfo famtool
+all: keygen keyinfo famtool routerinfo
+
+routerinfo: $(OBJECTS)
+	$(CXX) -o routerinfo routerinfo.o $(LDFLAGS) $(LIBS)
 
 keygen: $(OBJECTS)
 	$(CXX) -o keygen keygen.o $(LDFLAGS) $(LIBS)
diff --git a/i2pd b/i2pd
index 8795f0c..2767ad7 160000
--- a/i2pd
+++ b/i2pd
@@ -1 +1 @@
-Subproject commit 8795f0c8c45a910284c4c6d6e886d4d9ae746ad9
+Subproject commit 2767ad75ffbda35856c2dffd930fe1b15d17ac8a
diff --git a/routerinfo.cpp b/routerinfo.cpp
new file mode 100644
index 0000000..9bc752b
--- /dev/null
+++ b/routerinfo.cpp
@@ -0,0 +1,92 @@
+#include <iostream>
+#include <unistd.h>
+#include "Crypto.h"
+#include "RouterInfo.h"
+
+
+static void usage(const char * argv)
+{
+	std::cout << "usage: " << argv << " [-6|-f|-p] routerinfo.dat" << std::endl;
+}
+
+template<typename Addr>
+static void write_firewall_entry(std::ostream & o, Addr addr)
+{
+
+	std::string proto;
+	if(addr.transportStyle == i2p::data::RouterInfo::eTransportNTCP) {
+		proto = "tcp";
+	} else if (addr.transportStyle == i2p::data::RouterInfo::eTransportSSU) {
+		proto = "udp";
+	} else {
+		// bail
+		return;
+	}
+	
+	o << " -A OUTPUT -p " << proto;
+	o << " -d " << addr.host << " --dport " << addr.port;
+	o << " -j ACCEPT";
+}
+
+int main(int argc, char * argv[])
+{
+	if (argc < 2) {
+		usage(argv[0]);
+		return 1;
+	}
+	i2p::crypto::InitCrypto(false);
+	int opt;
+	bool ipv6 = false;
+	bool firewall = false;
+	bool port = false;
+	while((opt = getopt(argc, argv, "6fp")) != -1) {
+		switch(opt) {
+		case '6':
+			ipv6 = true;
+			break;
+		case 'f':
+			firewall = true;
+			break;
+		case 'p':
+			port = true;
+			break;
+		default:
+			usage(argv[0]);
+			return 1;
+		}
+	}
+
+	while(optind < argc) {
+		int idx = optind;
+		optind ++;
+		std::string fname(argv[idx]);
+		i2p::data::RouterInfo ri(fname);
+		
+		std::vector<i2p::data::RouterInfo::Address> addrs;
+		auto a = ri.GetNTCPAddress(!ipv6);
+		if(a)
+			addrs.push_back(*a);
+		a = ri.GetSSUAddress(!ipv6);
+		if(a)
+			addrs.push_back(*a);
+
+		if(firewall)
+			std::cout << "# ";
+		std::cout << ri.GetIdentHashBase64() << std::endl;
+		
+		for (const auto & a : addrs) {
+			
+			if(firewall) {
+				write_firewall_entry(std::cout, a);
+			} else {
+				std::cout << a.host;
+				
+				if (port)
+					std::cout << ":" << a.port;
+			}
+			std::cout << std::endl;
+		}
+	}
+	
+	return 0;
+}