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/* M-runtime for c++
* Copyright (C) 2005-2008 Vladimir Menshakov
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "sys_socket.h"
#include "net_exception.h"
#include "serializator.h"
#include <string.h>
#include "fmt.h"
#ifdef _WINDOWS
# include "Winsock2.h"
#else
# include <sys/socket.h>
# include <netinet/in.h>
# include <arpa/inet.h>
# include <unistd.h>
# include <netdb.h>
#endif
#include <assert.h>
#include <stdlib.h>
using namespace mrt;
Socket::Socket() : _sock(-1) {}
const std::string Socket::addr::getName() const {
struct hostent *he = gethostbyaddr((char *)&ip, sizeof(ip), AF_INET);
if (he == NULL)
return std::string();
return he->h_name;
}
void Socket::addr::getAddrByName(const std::string &name) {
struct hostent *he = gethostbyname(name.c_str());
if (he == NULL || he->h_addrtype != AF_INET) //sorry, no ipv6 now
return;
ip = *((mrt_uint32_t*)he->h_addr_list[0]);
}
void Socket::addr::parse(const std::string &ip) {
std::vector<std::string> ipport;
mrt::split(ipport, ip, ":");
if (ipport.empty()) {
this->ip = 0;
this->port = 0;
return;
}
if (ipport.size() > 1) {
port = atoi(ipport[1].c_str());
}
#ifdef _WINDOWS
this->ip = inet_addr(ipport[0].c_str());
if (this->ip == INADDR_NONE)
this->ip = 0;
#else
struct in_addr a;
this->ip = (inet_aton(ipport[0].c_str(), &a) != 0)? a.s_addr: 0;
#endif
}
const std::string Socket::addr::getAddr(bool with_port) const {
in_addr a;
memset(&a, 0, sizeof(a));
a.s_addr = ip;
std::string r = inet_ntoa(a);
if (with_port && port != 0) {
r += mrt::format_string(":%u", port);
}
return r;
}
void Socket::init() {
static bool inited;
if (inited)
return;
#ifdef _WINDOWS
struct WSAData WSAData;
if (WSAStartup (MAKEWORD(1,1), &WSAData) != 0)
throw_ex(("failed to initialize winsock 1.1. upgrade your windows installation and/or upgrade mrt runtime"));
#endif
inited = true;
}
void Socket::create(const int af, int type, int protocol) {
init();
close();
_sock = socket(af, type, protocol);
if (_sock == -1)
throw_net(("socket"));
no_linger();
}
void Socket::close() {
if (_sock == -1)
return;
//shutdown(_sock, 2); //we use do not use lingering by default
#ifdef _WINDOWS
::closesocket(_sock);
#else
::close(_sock);
#endif
_sock = -1;
}
Socket::~Socket() {
close();
}
void Socket::no_linger() {
TRY {
struct linger lflags;
memset(&lflags, 0, sizeof(lflags)); //disable linger
int r = setsockopt(_sock, SOL_SOCKET, SO_LINGER, (char *)&lflags, sizeof(lflags));
if (r < 0)
throw_net(("setsockopt(SO_LINGER)"));
} CATCH("noLinger", {});
}
void Socket::set_timeout(int recv_ms, int send_ms) {
struct timeval rt, st;
memset(&rt, 0, sizeof(rt));
memset(&st, 0, sizeof(st));
rt.tv_sec = recv_ms / 1000;
rt.tv_usec = (recv_ms % 1000) * 1000;
st.tv_sec = send_ms / 1000;
st.tv_usec = (send_ms % 1000) * 1000;
int r = setsockopt(_sock, SOL_SOCKET, SO_RCVTIMEO, (char *)&rt, sizeof(rt));
if (r < 0)
throw_net(("setsockopt(SO_RCVTIMEO)"));
r = setsockopt(_sock, SOL_SOCKET, SO_SNDTIMEO, (char *)&st, sizeof(st));
if (r < 0)
throw_net(("setsockopt(SO_SNDTIMEO)"));
}
void Socket::addr::serialize(Serializator &s) const {
s.add((unsigned)ip);
s.add((unsigned)port);
}
void Socket::addr::deserialize(const Serializator &s) {
unsigned n;
s.get(n);
ip = n;
s.get(n);
port = n;
// LOG_DEBUG(("deserialized %08x:%u", ip, port));
}
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