mirror of
https://github.com/RetroShare/RetroShare.git
synced 2025-05-14 20:12:29 -04:00
Created V0.3.x branch and moved the head into the trunk directory.
git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@246 b45a01b8-16f6-495d-af2f-9b41ad6348cc
This commit is contained in:
drbob
commit
935745a08e
1318 changed files with 348809 additions and 0 deletions
491
libretroshare/src/tcponudp/pair_tou.cc
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491
libretroshare/src/tcponudp/pair_tou.cc
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@ -0,0 +1,491 @@
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/*
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* "$Id: pair_tou.cc,v 1.3 2007-02-18 21:46:50 rmf24 Exp $"
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*
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* TCP-on-UDP (tou) network interface for RetroShare.
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*
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* Copyright 2004-2006 by Robert Fernie.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License Version 2 as published by the Free Software Foundation.
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*
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* This library 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 GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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* USA.
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*
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* Please report all bugs and problems to "retroshare@lunamutt.com".
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*
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*/
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#include <iostream>
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//#define USE_TCP_SOCKET
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// for printing sockaddr
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#include "udplayer.h"
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#ifndef USE_TCP_SOCKET
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#include "tou.h"
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#endif
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#include "tou_net.h"
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#include <unistd.h>
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#include <fcntl.h>
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#include <errno.h>
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/* This is a simple test to ensure that the tou behaviour
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* is almost identical to a standard tcp socket.
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*
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* In this version we open 2 sockets, and attempt to
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* communicate with ourselves....
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*
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*/
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int Check_Socket(int fd);
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void usage(char *name)
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{
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std::cerr << "Usage: " << name;
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std::cerr << " [-pco] <laddr> <lport> ";
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std::cerr << " <raddr> <rport> ";
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std::cerr << std::endl;
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exit(1);
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return;
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}
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int main(int argc, char **argv)
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{
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int c;
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bool isProxy = false;
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bool toConnect = false;
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bool stayOpen = false;
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int totalwbytes = 0;
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int totalrbytes = 0;
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while(-1 != (c = getopt(argc, argv, "pco")))
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{
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switch (c)
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{
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case 'p':
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isProxy = true;
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break;
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case 'c':
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toConnect = true;
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break;
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case 'o':
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stayOpen = true;
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break;
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default:
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usage(argv[0]);
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break;
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}
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}
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if (argc-optind < 4)
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{
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usage(argv[0]);
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return 1;
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}
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tounet_init();
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/* setup the local/remote addresses.
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*/
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struct sockaddr_in laddr;
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struct sockaddr_in raddr;
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laddr.sin_family = AF_INET;
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raddr.sin_family = AF_INET;
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if ((!tounet_inet_aton(argv[optind], &(laddr.sin_addr))) ||
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(!tounet_inet_aton(argv[optind+2], &(raddr.sin_addr))))
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{
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std::cerr << "Invalid addresses!" << std::endl;
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usage(argv[0]);
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}
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laddr.sin_port = htons(atoi(argv[optind+1]));
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raddr.sin_port = htons(atoi(argv[optind+3]));
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std::cerr << "Local Address: " << laddr << std::endl;
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std::cerr << "Remote Address: " << raddr << std::endl;
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#ifdef USE_TCP_SOCKET
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int sockfd = socket(PF_INET, SOCK_STREAM, 0);
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int sockfd2 = socket(PF_INET, SOCK_STREAM, 0);
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#else
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int sockfd = tou_socket(PF_INET, SOCK_STREAM, 0);
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int sockfd2 = tou_socket(PF_INET, SOCK_STREAM, 0);
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#endif
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if ((sockfd <= 0) || (sockfd2 <= 0))
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{
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std::cerr << "Failed to open socket!: ";
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#ifdef USE_TCP_SOCKET
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std::cerr << "Socket Error:" << errno << std::endl;
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#else
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std::cerr << "Socket Error:" << tou_errno(sockfd) << std::endl;
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std::cerr << "Socket Error:" << tou_errno(sockfd2) << std::endl;
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#endif
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return -1;
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}
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std::cerr << "Sockets Created: " << sockfd << " & " << sockfd2 << std::endl;
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/* make nonblocking */
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#ifdef USE_TCP_SOCKET
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int err = fcntl(sockfd,F_SETFD,O_NONBLOCK);
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int err2 = fcntl(sockfd2,F_SETFD,O_NONBLOCK);
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#else
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int err = 0;
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int err2 = 0;
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#endif
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if ((err < 0) || (err2 < 0))
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{
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std::cerr << "Error: Cannot make socket NON-Blocking: ";
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std::cerr << err << std::endl;
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return -1;
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}
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std::cerr << "Socket Non-Blocking" << std::endl;
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#ifdef USE_TCP_SOCKET
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err = bind(sockfd, (struct sockaddr *) &laddr, sizeof(laddr));
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err2 = bind(sockfd2, (struct sockaddr *) &raddr, sizeof(raddr));
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#else
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err = tou_bind(sockfd, (struct sockaddr *) &laddr, sizeof(laddr));
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err2 = tou_bind(sockfd2, (struct sockaddr *) &raddr, sizeof(raddr));
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#endif
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if ((err < 0) || (err2 < 0))
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{
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std::cerr << "Error: Cannot bind socket: ";
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std::cerr << err << std::endl;
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return -1;
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}
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std::cerr << "Socket1 Bound to: " << laddr << std::endl;
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std::cerr << "Socket2 Bound to: " << raddr << std::endl;
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// listening.
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if (1) // socket2.
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{
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std::cerr << "Socket2 Listening " << std::endl;
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/* listen */
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#ifdef USE_TCP_SOCKET
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err = listen(sockfd2, 1);
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#else
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err = tou_listenfor(sockfd2,
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(struct sockaddr *) &laddr, sizeof(laddr));
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#endif
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}
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if (1) // only one program.
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{
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std::cerr << "Socket1 Connecting to: " << raddr << std::endl;
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#ifdef USE_TCP_SOCKET
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err = connect(sockfd, (struct sockaddr *) &raddr, sizeof(raddr));
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#else
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err = tou_connect(sockfd, (struct sockaddr *) &raddr, sizeof(raddr));
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#endif
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if (err < 0)
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{
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#ifndef USE_TCP_SOCKET
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errno = tou_errno(sockfd);
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#endif
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if (errno != EINPROGRESS)
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{
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std::cerr << "Cannot Connect!: " << errno << std::endl;
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return 1;
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}
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}
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}
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bool sock1Connected = false;
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bool sock2Connected = false;
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while((!sock1Connected) || (!sock2Connected))
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{
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sleep(1);
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/* sock1 */
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#ifdef USE_TCP_SOCKET
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if((!sock1Connected) && (0 == (err = Check_Socket(sockfd))))
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#else
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if((!sock1Connected) && (0 == (err = tou_connected(sockfd))))
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#endif
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{
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std::cerr << "Waiting for Connect (Sock1)!" << std::endl;
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}
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if ((!sock1Connected) && (err < 0))
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{
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std::cerr << "Connect Failed" << std::endl;
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return 1;
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}
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else if (!sock1Connected)
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{
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// else connected!
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sock1Connected = true;
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}
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/* accept - sock2 */
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struct sockaddr_in inaddr;
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socklen_t addrlen = sizeof(inaddr);
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int nsock = -1;
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#ifdef USE_TCP_SOCKET
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if ((!sock2Connected) && (0 > (nsock = accept(sockfd2,
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(struct sockaddr *) &inaddr, &addrlen))))
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#else
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if ((!sock2Connected) && (0 > (nsock = tou_accept(sockfd2,
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(struct sockaddr *) &inaddr, &addrlen))))
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#endif
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{
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#ifndef USE_TCP_SOCKET
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errno = tou_errno(sockfd2);
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#endif
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if (errno != EAGAIN)
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{
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std::cerr << "Cannot Connect!: " << errno << std::endl;
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return 1;
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}
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else
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{
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std::cerr << "Waiting for Connect (Sock2)!" << std::endl;
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}
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}
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else if (nsock > 0)
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{
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/* connected */
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sock2Connected = true;
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sockfd2 = nsock;
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std::cerr << "Socket Accepted from: " << inaddr << std::endl;
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}
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}
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std::cerr << "Socket Connected" << std::endl;
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/* send data */
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int bufsize = 1511;
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char buffer[bufsize];
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char data[bufsize];
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int readsize = 0;
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tounet_fcntl(0, F_SETFL, O_NONBLOCK);
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tounet_fcntl(1,F_SETFL,O_NONBLOCK);
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bool doneWrite = false;
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bool doneRead = false;
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bool blockread = false;
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while((!doneWrite) || (!doneRead))
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{
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/* read -> write_socket... */
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sleep(1);
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if (blockread != true)
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{
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readsize = read(0, buffer, bufsize);
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}
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if (readsize == 0)
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{
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/* eof */
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doneWrite = true;
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}
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/* now we write */
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#ifdef USE_TCP_SOCKET
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if ((readsize > 0) && (-1 == write(sockfd, buffer, readsize)))
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#else
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if ((readsize > 0) && (-1 == tou_write(sockfd, buffer, readsize)))
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#endif
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{
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//std::cerr << "Blocked Write!" << std::endl;
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#ifndef USE_TCP_SOCKET
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//std::cerr << "Error: " << tou_errno(sockfd) << std::endl;
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#endif
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blockread = true;
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}
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else
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{
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blockread = false;
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totalwbytes += readsize;
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}
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int ret = 0;
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#ifdef USE_TCP_SOCKET
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if (0 < (ret = read(sockfd2, data, bufsize)))
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#else
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if (0 < (ret = tou_read(sockfd2, data, bufsize)))
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#endif
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{
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std::cerr << "TF(" << ret << ")" << std::endl;
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write(1, data, ret);
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totalrbytes += ret;
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}
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else if (ret == 0)
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{
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doneRead = true;
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}
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else
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{
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//std::cerr << "Blocked Read!" << std::endl;
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#ifndef USE_TCP_SOCKET
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//std::cerr << "Error: " << tou_errno(sockfd) << std::endl;
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#endif
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}
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}
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#ifdef USE_TCP_SOCKET
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close(sockfd);
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close(sockfd2);
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#else
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/* this is blocking??? */
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tou_close(sockfd);
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tou_close(sockfd2);
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#endif
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std::cerr << "Transfer Complete: " << totalwbytes << " bytes";
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std::cerr << std::endl;
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return 1;
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}
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#ifdef USE_TCP_SOCKET
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int Check_Socket(int fd)
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{
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std::cerr << "Check_Socket()" << std::endl;
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std::cerr << "1) Checking with Select()" << std::endl;
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fd_set ReadFDs, WriteFDs, ExceptFDs;
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FD_ZERO(&ReadFDs);
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FD_ZERO(&WriteFDs);
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FD_ZERO(&ExceptFDs);
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FD_SET(fd, &ReadFDs);
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FD_SET(fd, &WriteFDs);
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FD_SET(fd, &ExceptFDs);
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struct timeval timeout;
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timeout.tv_sec = 0;
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timeout.tv_usec = 0;
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int sr = 0;
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if (0 > (sr = select(fd + 1,
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&ReadFDs, &WriteFDs, &ExceptFDs, &timeout)))
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{
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std::cerr << "Check_Socket() Select ERROR: " << sr << std::endl;
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return -1;
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}
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if (FD_ISSET(fd, &ExceptFDs))
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{
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std::cerr << "Check_Socket() Exception on socket!" << std::endl;
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return -1;
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}
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if (FD_ISSET(fd, &WriteFDs))
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{
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std::cerr << "Check_Socket() Can Write!" << std::endl;
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}
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else
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{
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// not ready return 0;
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std::cerr << "Check_Socket() Cannot Write!" << std::endl;
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std::cerr << "Check_Socket() Socket Not Ready!" << std::endl;
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return 0;
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}
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if (FD_ISSET(fd, &ReadFDs))
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{
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std::cerr << "Check_Socket() Can Read!" << std::endl;
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}
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||||
else
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||||
{
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std::cerr << "Check_Socket() Cannot Read!" << std::endl;
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std::cerr << "Check_Socket() Socket Not Ready!" << std::endl;
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return 0;
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}
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std::cerr << "Select() Tests indicate Socket Good!" << std::endl;
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std::cerr << "2) Checking with getsockopt()" << std::endl;
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||||
int err = 1;
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||||
socklen_t optlen = 4;
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if (0==getsockopt(fd, SOL_SOCKET, SO_ERROR, &err, &optlen))
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{
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std::cerr << "Check_Socket() getsockopt returned :" << err;
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||||
std::cerr << ", optlen:" << optlen;
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||||
std::cerr << std::endl;
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||||
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||||
if (err == 0)
|
||||
{
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||||
std::cerr << "Check_Socket() getsockopt";
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||||
std::cerr << " Indicates TCP Connection Complete:";
|
||||
std::cerr << std::endl;
|
||||
return 1;
|
||||
}
|
||||
else if (err == EINPROGRESS)
|
||||
{
|
||||
std::cerr << "Check_Socket() getsockopt";
|
||||
std::cerr << " Indicates TCP Connection INPROGRESS";
|
||||
std::cerr << std::endl;
|
||||
return 0;
|
||||
}
|
||||
else if ((err == ENETUNREACH) || (err == ETIMEDOUT))
|
||||
{
|
||||
std::cerr << "Check_Socket() getsockopt";
|
||||
std::cerr << " Indicates TCP Connection ENETUNREACH/ETIMEDOUT";
|
||||
std::cerr << std::endl;
|
||||
return -1;
|
||||
}
|
||||
else if ((err == EHOSTUNREACH) || (err == EHOSTDOWN))
|
||||
{
|
||||
std::cerr << "Check_Socket() getsockopt";
|
||||
std::cerr << " Indicates TCP Connection ENETUNREACH/ETIMEDOUT";
|
||||
std::cerr << std::endl;
|
||||
return -1;
|
||||
}
|
||||
else
|
||||
{
|
||||
std::cerr << "Check_Socket() getsockopt";
|
||||
std::cerr << " Indicates Other Error: " << err;
|
||||
std::cerr << std::endl;
|
||||
return -1;
|
||||
}
|
||||
|
||||
|
||||
}
|
||||
else
|
||||
{
|
||||
std::cerr << "Check_Socket() getsockopt";
|
||||
std::cerr << " FAILED ";
|
||||
std::cerr << std::endl;
|
||||
return -1;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
#else
|
||||
|
||||
int Check_Socket(int fd)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
#endif
|
||||
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