From d64ec5dd11e5ad07abbcae9c347f297d3336a675 Mon Sep 17 00:00:00 2001
From: victor <victor@e16421f0-f15b-0410-abcd-98678b794739>
Date: Tue, 17 Nov 2009 18:33:55 +0000
Subject: [PATCH] DNS lookups

git-svn-id: https://ttuki.vtt.fi/svn/p2p-next/TUD/p2tp/trunk@575 e16421f0-f15b-0410-abcd-98678b794739
---
 datagram.cpp        | 15 ++++++++++++++-
 datagram.h          |  5 ++---
 tests/dgramtest.cpp |  6 ++++++
 3 files changed, 22 insertions(+), 4 deletions(-)

diff --git a/datagram.cpp b/datagram.cpp
index d549134..bcb4fe5 100644
--- a/datagram.cpp
+++ b/datagram.cpp
@@ -14,6 +14,7 @@
 #else
     #include <arpa/inet.h>
 #endif
+#include <netdb.h>
 #include "datagram.h"
 #include "compat.h"
 
@@ -48,6 +49,16 @@ const char* tintstr (tint time) {
     return ret_str[i];
 }
     
+void Address::set_ipv4 (const char* ip_str) {
+    struct hostent *h = gethostbyname(ip_str);
+    if (h == NULL) {
+    	print_error("cannot lookup address");
+    	return;
+    } else {
+        addr.sin_addr.s_addr = *(u_long *) h->h_addr_list[0];
+    }
+}
+    
     
 Address::Address(const char* ip_port) {
     clear();
@@ -137,7 +148,7 @@ tint Datagram::Time () {
 SOCKET Datagram::Bind (Address addr_) {
     struct sockaddr_in addr = addr_;
 	SOCKET fd;
-	int len = sizeof(struct sockaddr_in), sndbuf=1<<20, rcvbuf=1<<20;
+	int len = sizeof(struct sockaddr_in), sndbuf=1<<20, rcvbuf=1<<20, enable=1;
 	if ((fd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
 		print_error("socket() fails");
         return INVALID_SOCKET;
@@ -153,6 +164,7 @@ SOCKET Datagram::Bind (Address addr_) {
         print_error("setsockopt2 fails");
         return INVALID_SOCKET;
     }
+    setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (const char *)&enable, sizeof(int));
 #else
 	if (fcntl(fd, F_SETFL, O_NONBLOCK) == -1)
 		return INVALID_SOCKET;
@@ -164,6 +176,7 @@ SOCKET Datagram::Bind (Address addr_) {
         print_error("setsockopt2 fails");
         return INVALID_SOCKET;
     }
+    setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &enable, sizeof(int));
 #endif
     dprintf("socket buffers: %i send %i recv\n",sndbuf,rcvbuf);
 	if (::bind(fd, (sockaddr*)&addr, len) != 0) {
diff --git a/datagram.h b/datagram.h
index 2293ea7..db7c9f7 100644
--- a/datagram.h
+++ b/datagram.h
@@ -59,9 +59,8 @@ struct Address {
     void set_ipv4 (uint32_t ipv4) {
         addr.sin_addr.s_addr = htonl(ipv4);
     }
-    void set_ipv4 (const char* ipv4_str) {
-        inet_aton(ipv4_str,&(addr.sin_addr));
-    }
+    void set_ipv4 (const char* ipv4_str) ;
+    //{    inet_aton(ipv4_str,&(addr.sin_addr));    }
     void clear () {
         memset(&addr,0,sizeof(struct sockaddr_in));
         addr.sin_family = AF_INET;
diff --git a/tests/dgramtest.cpp b/tests/dgramtest.cpp
index 24822a0..dea04c0 100644
--- a/tests/dgramtest.cpp
+++ b/tests/dgramtest.cpp
@@ -13,6 +13,12 @@
 
 using namespace p2tp;
 
+TEST(Datagram, AddressTest) {
+    Address addr("127.0.0.1:1000");
+    EXPECT_EQ(INADDR_LOOPBACK,addr.ipv4());
+    EXPECT_EQ(1000,addr.port());
+}
+
 
 TEST(Datagram, BinaryTest) {
 	SOCKET socket = Datagram::Bind(7001);
-- 
2.20.1