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/***************************************************************************
* Copyright (C) 2005 by Joris Guisson *
* [email protected] *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program 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 General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
***************************************************************************/
#include <tqglobal.h>
#include <unistd.h>
#include <string.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <errno.h>
#include <netinet/in.h>
#include <netinet/tcp.h>
#include <arpa/inet.h>
#if defined(Q_OS_LINUX) && !defined(__FreeBSD_kernel__)
#include <asm/ioctls.h>
#endif
#ifdef Q_OS_SOLARIS
#include <sys/filio.h>
#endif
#ifndef MSG_NOSIGNAL
#define MSG_NOTQT_SIGNAL 0
#endif
#include <unistd.h>
#include <fcntl.h>
#include <torrent/globals.h>
#include <util/log.h>
#include "socket.h"
using namespace bt;
namespace net
{
Socket::Socket(int fd) : m_fd(fd),m_state(IDLE)
{
#if defined(Q_OS_MACX) || defined(Q_OS_DARWIN) || (defined(Q_OS_FREEBSD) && !defined(__DragonFly__) && __FreeBSD_version < 600020)
int val = 1;
if (setsockopt(m_fd,SOL_SOCKET,SO_NOSIGPIPE,&val,sizeof(int)) < 0)
{
Out(SYS_CON|LOG_NOTICE) << TQString("Failed to set the NOSIGPIPE option : %1").tqarg(strerror(errno)) << endl;
}
#endif
cacheAddress();
}
Socket::Socket(bool tcp) : m_fd(-1),m_state(IDLE)
{
int fd = socket(PF_INET,tcp ? SOCK_STREAM : SOCK_DGRAM,0);
if (fd < 0)
{
Out(SYS_GEN|LOG_IMPORTANT) << TQString("Cannot create socket : %1").tqarg(strerror(errno)) << endl;
}
m_fd = fd;
#if defined(Q_OS_MACX) || defined(Q_OS_DARWIN) || (defined(Q_OS_FREEBSD) && !defined(__DragonFly__) && __FreeBSD_version < 600020)
int val = 1;
if (setsockopt(m_fd,SOL_SOCKET,SO_NOSIGPIPE,&val,sizeof(int)) < 0)
{
Out(SYS_CON|LOG_NOTICE) << TQString("Failed to set the NOSIGPIPE option : %1").tqarg(strerror(errno)) << endl;
}
#endif
}
Socket::~Socket()
{
if (m_fd >= 0)
{
shutdown(m_fd, SHUT_RDWR);
::close(m_fd);
}
}
void Socket::close()
{
if (m_fd >= 0)
{
shutdown(m_fd, SHUT_RDWR);
::close(m_fd);
m_fd = -1;
m_state = CLOSED;
}
}
void Socket::setNonBlocking()
{
fcntl(m_fd, F_SETFL, O_NONBLOCK);
}
bool Socket::connectTo(const Address & a)
{
struct sockaddr_in addr;
memset(&addr,0,sizeof(struct sockaddr_in));
addr.sin_family = AF_INET;
addr.sin_port = htons(a.port());
addr.sin_addr.s_addr = htonl(a.ip());
if (::connect(m_fd,(struct sockaddr*)&addr,sizeof(struct sockaddr)) < 0)
{
if (errno == EINPROGRESS)
{
// Out(SYS_CON|LOG_DEBUG) << "Socket is connecting" << endl;
m_state = CONNECTING;
return false;
}
else
{
Out(SYS_CON|LOG_NOTICE) << TQString("Cannot connect to host %1:%2 : %3")
.tqarg(a.toString()).tqarg(a.port()).tqarg(strerror(errno)) << endl;
return false;
}
}
m_state = CONNECTED;
cacheAddress();
return true;
}
bool Socket::bind(Uint16 port,bool also_listen)
{
struct sockaddr_in addr;
memset(&addr,0,sizeof(struct sockaddr_in));
addr.sin_family = AF_INET;
addr.sin_port = htons(port);
if (::bind(m_fd,(struct sockaddr*)&addr,sizeof(struct sockaddr)) < 0)
{
Out(SYS_CON|LOG_IMPORTANT) << TQString("Cannot bind to port %1 : %2").tqarg(port).tqarg(strerror(errno)) << endl;
return false;
}
if (also_listen && listen(m_fd,5) < 0)
{
Out(SYS_CON|LOG_IMPORTANT) << TQString("Cannot listen to port %1 : %2").tqarg(port).tqarg(strerror(errno)) << endl;
return false;
}
int val = 1;
if (setsockopt(m_fd,SOL_SOCKET,SO_REUSEADDR,&val,sizeof(int)) < 0)
{
Out(SYS_CON|LOG_NOTICE) << TQString("Failed to set the reuseaddr option : %1").tqarg(strerror(errno)) << endl;
}
m_state = BOUND;
return true;
}
int Socket::send(const bt::Uint8* buf,int len)
{
int ret = ::send(m_fd,buf,len,MSG_NOSIGNAL);
if (ret < 0)
{
if (errno != EAGAIN && errno != EWOULDBLOCK)
{
// Out(SYS_CON|LOG_DEBUG) << "Send error : " << TQString(strerror(errno)) << endl;
close();
}
return 0;
}
return ret;
}
int Socket::recv(bt::Uint8* buf,int max_len)
{
int ret = ::recv(m_fd,buf,max_len,0);
if (ret < 0)
{
if (errno != EAGAIN && errno != EWOULDBLOCK)
{
// Out(SYS_CON|LOG_DEBUG) << "Receive error : " << TQString(strerror(errno)) << endl;
close();
}
return 0;
}
else if (ret == 0)
{
// connection closed
close();
return 0;
}
return ret;
}
int Socket::sendTo(const bt::Uint8* buf,int len,const Address & a)
{
struct sockaddr_in addr;
memset(&addr,0,sizeof(struct sockaddr_in));
addr.sin_family = AF_INET;
addr.sin_port = htons(a.port());
addr.sin_addr.s_addr = htonl(a.ip());
int ns = 0;
while (ns < len)
{
int left = len - ns;
int ret = ::sendto(m_fd,(char*)buf + ns,left,0,(struct sockaddr*)&addr,sizeof(struct sockaddr));
if (ret < 0)
{
Out(SYS_CON|LOG_DEBUG) << "Send error : " << TQString(strerror(errno)) << endl;
return 0;
}
ns += ret;
}
return ns;
}
int Socket::recvFrom(bt::Uint8* buf,int max_len,Address & a)
{
struct sockaddr_in addr;
memset(&addr,0,sizeof(struct sockaddr_in));
socklen_t sl = sizeof(struct sockaddr);
int ret = ::recvfrom(m_fd,buf,max_len,0,(struct sockaddr*)&addr,&sl);
if (ret < 0)
{
Out(SYS_CON|LOG_DEBUG) << "Receive error : " << TQString(strerror(errno)) << endl;
return 0;
}
a.setPort(ntohs(addr.sin_port));
a.setIP(ntohl(addr.sin_addr.s_addr));
return ret;
}
int Socket::accept(Address & a)
{
struct sockaddr_in addr;
memset(&addr,0,sizeof(struct sockaddr_in));
socklen_t slen = sizeof(struct sockaddr_in);
int sfd = ::accept(m_fd,(struct sockaddr*)&addr,&slen);
if (sfd < 0)
{
Out(SYS_CON|LOG_DEBUG) << "Accept error : " << TQString(strerror(errno)) << endl;
return -1;
}
a.setPort(ntohs(addr.sin_port));
a.setIP(ntohl(addr.sin_addr.s_addr));
Out(SYS_CON|LOG_DEBUG) << "Accepted connection from " << TQString(inet_ntoa(addr.sin_addr)) << endl;
return sfd;
}
bool Socket::setTOS(unsigned char type_of_service)
{
#if defined(Q_OS_MACX) || defined(Q_OS_DARWIN) || (defined(Q_OS_FREEBSD) && __FreeBSD_version < 600020) || defined(Q_OS_NETBSD) || defined(Q_OS_OPENBSD) || defined(Q_OS_BSD4)
unsigned int c = type_of_service;
#else
unsigned char c = type_of_service;
#endif
if (setsockopt(m_fd,IPPROTO_IP,IP_TOS,&c,sizeof(c)) < 0)
{
Out(SYS_CON|LOG_NOTICE) << TQString("Failed to set TOS to %1 : %2")
.tqarg(type_of_service).tqarg(strerror(errno)) << endl;
return false;
}
return true;
}
Uint32 Socket::bytesAvailable() const
{
int ret = 0;
if (ioctl(m_fd,FIONREAD,&ret) < 0)
return 0;
return ret;
}
bool Socket::connectSuccesFull()
{
if (m_state != CONNECTING)
return false;
int err = 0;
socklen_t len = sizeof(int);
if (getsockopt(m_fd,SOL_SOCKET,SO_ERROR,&err,&len) < 0)
return false;
if (err == 0)
{
m_state = CONNECTED;
cacheAddress();
}
return err == 0;
}
void Socket::cacheAddress()
{
struct sockaddr_in raddr;
socklen_t slen = sizeof(struct sockaddr_in);
if (getpeername(m_fd,(struct sockaddr*)&raddr,&slen) == 0)
addr = Address(inet_ntoa(raddr.sin_addr),ntohs(raddr.sin_port));
}
/*
void Socket::setReadBufferSize(int rbs)
{
if (setsockopt(m_fd, SOL_SOCKET, SO_RCVBUF, (char *)&rbs,sizeof(int)) < 0)
{
Out(SYS_CON|LOG_DEBUG) << "Failed to set read buffer size " << endl;
}
}
*/
}
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