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https://github.com/RetroShare/RetroShare.git
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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
346
libretroshare/src/tcponudp/tou_net.cc
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346
libretroshare/src/tcponudp/tou_net.cc
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/*
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* "$Id: tou_net.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 "tou_net.h"
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/********************************** WINDOWS/UNIX SPECIFIC PART ******************/
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#ifndef WINDOWS_SYS
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/* Unix Version is easy -> just call the unix fn
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*/
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#include <unistd.h> /* for close definition */
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/* the universal interface */
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int tounet_init() { return 0; }
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int tounet_errno() { return errno; }
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/* check if we can modify the TTL on a UDP packet */
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int tounet_checkTTL(int fd) { return 1;}
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int tounet_inet_aton(const char *name, struct in_addr *addr)
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{
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return inet_aton(name, addr);
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}
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int tounet_close(int fd) { return close(fd); }
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int tounet_socket(int domain, int type, int protocol)
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{
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return socket(domain, type, protocol);
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}
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int tounet_bind(int sockfd, const struct sockaddr *my_addr, socklen_t addrlen)
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{
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return bind(sockfd,my_addr,addrlen);
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}
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int tounet_fcntl(int fd, int cmd, long arg)
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{
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return fcntl(fd, cmd, arg);
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}
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int tounet_setsockopt(int s, int level, int optname,
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const void *optval, socklen_t optlen)
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{
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return setsockopt(s, level, optname, optval, optlen);
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}
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ssize_t tounet_recvfrom(int s, void *buf, size_t len, int flags,
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struct sockaddr *from, socklen_t *fromlen)
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{
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return recvfrom(s, buf, len, flags, from, fromlen);
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}
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ssize_t tounet_sendto(int s, const void *buf, size_t len, int flags,
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const struct sockaddr *to, socklen_t tolen)
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{
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return sendto(s, buf, len, flags, to, tolen);
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}
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/********************************** WINDOWS/UNIX SPECIFIC PART ******************/
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#else /* WINDOWS OS */
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#include <iostream>
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/* error handling */
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int tounet_int_errno;
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int tounet_errno()
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{
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return tounet_int_errno;
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}
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int tounet_init()
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{
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std::cerr << "tounet_init()" << std::endl;
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tounet_int_errno = 0;
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// Windows Networking Init.
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WORD wVerReq = MAKEWORD(2,2);
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WSADATA wsaData;
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if (0 != WSAStartup(wVerReq, &wsaData))
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{
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std::cerr << "Failed to Startup Windows Networking";
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std::cerr << std::endl;
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}
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else
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{
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std::cerr << "Started Windows Networking";
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std::cerr << std::endl;
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}
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return 0;
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}
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/* check if we can modify the TTL on a UDP packet */
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int tounet_checkTTL(int fd)
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{
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std::cerr << "tounet_checkTTL()" << std::endl;
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int optlen = 4;
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char optval[optlen];
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int ret = getsockopt(fd, IPPROTO_IP, IP_TTL, optval, &optlen);
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//int ret = getsockopt(fd, IPPROTO_IP, IP_MULTICAST_TTL, optval, &optlen);
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if (ret == SOCKET_ERROR)
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{
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ret = -1;
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tounet_int_errno = tounet_w2u_errno(WSAGetLastError());
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std::cerr << "tounet_checkTTL() Failed!";
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std::cerr << std::endl;
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}
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else
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{
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std::cerr << "tounet_checkTTL() :";
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std::cerr << (int) optval[0] << ":";
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std::cerr << (int) optval[1] << ":";
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std::cerr << (int) optval[2] << ":";
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std::cerr << (int) optval[3] << ": RET: ";
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std::cerr << ret << ":";
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std::cerr << std::endl;
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}
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return ret;
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}
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int tounet_close(int fd)
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{
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std::cerr << "tounet_close()" << std::endl;
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return closesocket(fd);
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}
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int tounet_socket(int domain, int type, int protocol)
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{
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int osock = socket(domain, type, protocol);
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std::cerr << "tounet_socket()" << std::endl;
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if ((unsigned) osock == INVALID_SOCKET)
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{
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// Invalidate socket Unix style.
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osock = -1;
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tounet_int_errno = tounet_w2u_errno(WSAGetLastError());
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}
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tounet_checkTTL(osock);
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return osock;
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}
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int tounet_bind(int sockfd, const struct sockaddr *my_addr, socklen_t addrlen)
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{
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std::cerr << "tounet_bind()" << std::endl;
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int ret = bind(sockfd,my_addr,addrlen);
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if (ret != 0)
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{
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/* store unix-style error
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*/
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ret = -1;
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tounet_int_errno = tounet_w2u_errno(WSAGetLastError());
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}
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return ret;
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}
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int tounet_fcntl(int fd, int cmd, long arg)
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{
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int ret;
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unsigned long int on = 1;
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std::cerr << "tounet_fcntl()" << std::endl;
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/* can only do NONBLOCK at the moment */
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if ((cmd != F_SETFL) || (arg != O_NONBLOCK))
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{
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std::cerr << "tounet_fcntl() limited to fcntl(fd, F_SETFL, O_NONBLOCK)";
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std::cerr << std::endl;
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tounet_int_errno = EOPNOTSUPP;
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return -1;
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}
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ret = ioctlsocket(fd, FIONBIO, &on);
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if (ret != 0)
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{
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/* store unix-style error
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*/
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ret = -1;
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tounet_int_errno = tounet_w2u_errno(WSAGetLastError());
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}
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return ret;
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}
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int tounet_setsockopt(int s, int level, int optname,
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const void *optval, socklen_t optlen)
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{
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std::cerr << "tounet_setsockopt() val:" << *((int *) optval) << std::endl;
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std::cerr << "tounet_setsockopt() len:" << optlen << std::endl;
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if ((level != IPPROTO_IP) || (optname != IP_TTL))
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{
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std::cerr << "tounet_setsockopt() limited to ";
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std::cerr << "setsockopt(fd, IPPROTO_IP, IP_TTL, ....)";
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std::cerr << std::endl;
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tounet_int_errno = EOPNOTSUPP;
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return -1;
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}
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int ret = setsockopt(s, level, optname, (const char *) optval, optlen);
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//int ret = setsockopt(s, IPPROTO_IP, IP_MULTICAST_TTL, (const char *) optval, optlen);
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if (ret == SOCKET_ERROR)
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{
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ret = -1;
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tounet_int_errno = tounet_w2u_errno(WSAGetLastError());
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}
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tounet_checkTTL(s);
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return ret;
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}
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ssize_t tounet_recvfrom(int s, void *buf, size_t len, int flags,
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struct sockaddr *from, socklen_t *fromlen)
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{
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std::cerr << "tounet_recvfrom()" << std::endl;
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int ret = recvfrom(s, (char *) buf, len, flags, from, fromlen);
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if (ret == SOCKET_ERROR)
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{
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ret = -1;
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tounet_int_errno = tounet_w2u_errno(WSAGetLastError());
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}
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return ret;
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}
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ssize_t tounet_sendto(int s, const void *buf, size_t len, int flags,
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const struct sockaddr *to, socklen_t tolen)
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{
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std::cerr << "tounet_sendto()" << std::endl;
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int ret = sendto(s, (const char *) buf, len, flags, to, tolen);
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if (ret == SOCKET_ERROR)
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{
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ret = -1;
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tounet_int_errno = tounet_w2u_errno(WSAGetLastError());
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}
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return ret;
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}
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int tounet_w2u_errno(int err)
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{
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/* switch */
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std::cerr << "tou_net_w2u_errno(" << err << ")" << std::endl;
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switch(err)
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{
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case WSAEINPROGRESS:
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return EINPROGRESS;
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break;
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case WSAEWOULDBLOCK:
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return EINPROGRESS;
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break;
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case WSAENETUNREACH:
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return ENETUNREACH;
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break;
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case WSAETIMEDOUT:
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return ETIMEDOUT;
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break;
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case WSAEHOSTDOWN:
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return EHOSTDOWN;
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break;
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case WSAECONNREFUSED:
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return ECONNREFUSED;
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break;
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case WSAEADDRINUSE:
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return EADDRINUSE;
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break;
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case WSAEUSERS:
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return EUSERS;
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break;
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/* This one is returned for UDP recvfrom, when nothing there
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* but not a real error... translate into EINPROGRESS
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*/
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case WSAECONNRESET:
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std::cerr << "tou_net_w2u_errno(" << err << ")";
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std::cerr << " = WSAECONNRESET ---> EINPROGRESS";
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std::cerr << std::endl;
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return EINPROGRESS;
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break;
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/***
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*
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case WSAECONNRESET:
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return ECONNRESET;
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break;
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*
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***/
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default:
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std::cerr << "tou_net_w2u_errno(" << err << ") Unknown";
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std::cerr << std::endl;
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break;
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}
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return ECONNREFUSED; /* sensible default? */
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}
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int tounet_inet_aton(const char *name, struct in_addr *addr)
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{
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return (((*addr).s_addr = inet_addr(name)) != INADDR_NONE);
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}
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void sleep(int sec)
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{
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Sleep(sec * 1000);
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}
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void usleep(int usec)
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{
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Sleep(usec / 1000);
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}
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#endif
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/********************************** WINDOWS/UNIX SPECIFIC PART ******************/
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