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/**
\file NetAddress.cpp
\maintainer Morgan McGuire, http://graphics.cs.williams.edu
\created 2005-02-06
\edited 2013-03-17
*/
#include "G3D/platform.h"
#include "G3D/NetAddress.h"
#include "G3D/BinaryInput.h"
#include "G3D/BinaryOutput.h"
#include "G3D/Array.h"
#include "G3D/stringutils.h"
#include "G3D/System.h"
#include "G3D/NetworkDevice.h"
#include "G3D/Log.h"
#if defined(G3D_LINUX) || defined(G3D_OSX)
#include <unistd.h>
#include <errno.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <netinet/tcp.h>
#define _alloca alloca
#define SOCKET_ERROR -1
# ifndef SOCKADDR_IN
# define SOCKADDR_IN struct sockaddr_in
# endif
# ifndef SOCKET
# define SOCKET int
# endif
// SOCKADDR_IN is supposed to be defined in NetAddress.h
#ifndef SOCKADDR_IN
# error Network headers included in wrong order
#endif
#endif
namespace G3D {
NetAddress::NetAddress() {
System::memset(&addr, 0, sizeof(addr));
}
void NetAddress::init(uint32 host, uint16 port) {
if ((host != 0) || (port != 0)) {
addr.sin_family = AF_INET;
addr.sin_port = htons(port);
if (host == 0) {
host = INADDR_ANY;
}
addr.sin_addr.s_addr = htonl(host);
} else {
System::memset(&addr, 0, sizeof(addr));
}
}
NetAddress::NetAddress
(const std::string& hostname,
uint16 port) {
init(hostname, port);
}
void NetAddress::init
(const std::string& hostname,
uint16 port) {
uint32 addr;
if (hostname == "") {
addr = INADDR_NONE;
} else {
addr = inet_addr(hostname.c_str());
}
// The address wasn't in numeric form, resolve it
if (addr == INADDR_NONE) {
// Get the IP address of the server and store it in host
struct hostent* host = gethostbyname(hostname.c_str());
if (host == NULL) {
init(0, 0);
return;
}
System::memcpy(&addr, host->h_addr_list[0], host->h_length);
}
if (addr != INADDR_NONE) {
addr = ntohl(addr);
}
init(addr, port);
}
NetAddress::NetAddress(uint32 hostip, uint16 port) {
init(hostip, port);
}
NetAddress NetAddress::broadcastAddress(uint16 port) {
return NetAddress(NetworkDevice::instance()->broadcastAddressArray()[0], port);
}
NetAddress::NetAddress(const std::string& hostnameAndPort) {
Array<std::string> part = stringSplit(hostnameAndPort, ':');
debugAssert(part.length() == 2);
init(part[0], atoi(part[1].c_str()));
}
NetAddress::NetAddress(const SOCKADDR_IN& a) {
addr = a;
}
NetAddress::NetAddress(const struct in_addr& addr, uint16 port) {
#ifdef G3D_WINDOWS
init(ntohl(addr.S_un.S_addr), port);
#else
init(htonl(addr.s_addr), port);
#endif
}
void NetAddress::localHostAddresses(Array<NetAddress>& array) {
array.resize(0);
char ac[256];
if (gethostname(ac, sizeof(ac)) == SOCKET_ERROR) {
Log::common()->printf("Error while getting local host name\n");
return;
}
struct hostent* phe = gethostbyname(ac);
if (phe == 0) {
Log::common()->printf("Error while getting local host address\n");
return;
}
for (int i = 0; (phe->h_addr_list[i] != 0); ++i) {
struct in_addr addr;
memcpy(&addr, phe->h_addr_list[i], sizeof(struct in_addr));
array.append(NetAddress(addr));
}
}
void NetAddress::serialize(class BinaryOutput& b) const {
b.writeUInt32(ip());
b.writeUInt16(port());
}
void NetAddress::deserialize(class BinaryInput& b) {
uint32 i;
uint16 p;
i = b.readUInt32();
p = b.readUInt16();
init(i, p);
}
bool NetAddress::ok() const {
return addr.sin_family != 0;
}
std::string NetAddress::ipString() const {
return format("%s", inet_ntoa(*(in_addr*)&(addr.sin_addr)));
}
std::string NetAddress::toString() const {
return ipString() + format(":%d", ntohs(addr.sin_port));
}
}
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