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