wip
Dependents: EthernetInterface_vz
Fork of Socket by
UDPSocket.cpp
- Committer:
- klauss
- Date:
- 2015-05-08
- Revision:
- 26:4c022b0e816a
- Parent:
- 25:de20f827fa8c
- Child:
- 27:32b65754bb02
File content as of revision 26:4c022b0e816a:
/* Copyright (C) 2012 mbed.org, MIT License * * Permission is hereby granted, free of charge, to any person obtaining a copy of this software * and associated documentation files (the "Software"), to deal in the Software without restriction, * including without limitation the rights to use, copy, modify, merge, publish, distribute, * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in all copies or * substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ #include "Socket/UDPSocket.h" #include <cstring> using std::memset; int lwip_sock_portando_ntohs = 0; int lwip_sock_portando_local_port = 0; #include "header_app_includes.h" UDPSocket::UDPSocket() { } int UDPSocket::init(void) { return init_socket(SOCK_DGRAM); } // Server initialization int UDPSocket::bind(int port) { if (init_socket(SOCK_DGRAM) < 0) return -1; struct sockaddr_in localHost; std::memset(&localHost, 0, sizeof(localHost)); localHost.sin_family = AF_INET; localHost.sin_port = htons(port); if ( debug_bind ) send_msg("bind of %d -- result in ( %d, %d )", port, htons(port), localHost.sin_port ); localHost.sin_addr.s_addr = INADDR_ANY; if (lwip_bind(_sock_fd, (const struct sockaddr *) &localHost, sizeof(localHost)) < 0) { close(); return -1; } if ( debug_bind ) send_msg("lwip_sock_portando_local_port %d - lwip_sock_portando_ntohs %d ", lwip_sock_portando_local_port, lwip_sock_portando_ntohs ); return 0; } int UDPSocket::join_multicast_group(const char* address) { struct ip_mreq mreq; // Set up group address mreq.imr_multiaddr.s_addr = inet_addr(address); mreq.imr_interface.s_addr = htonl(INADDR_ANY); return set_option(IPPROTO_IP, IP_ADD_MEMBERSHIP, &mreq, sizeof(mreq)); } int UDPSocket::set_broadcasting(bool broadcast) { int option = (broadcast) ? (1) : (0); return set_option(SOL_SOCKET, SO_BROADCAST, &option, sizeof(option)); } // -1 if unsuccessful, else number of bytes written int UDPSocket::sendTo(Endpoint &remote, char *packet, int length) { if (_sock_fd < 0) return -1; if (!_blocking) { TimeInterval timeout(_timeout); if (wait_writable(timeout) != 0) return 0; } return lwip_sendto(_sock_fd, packet, length, 0, (const struct sockaddr *) &remote._remoteHost, sizeof(remote._remoteHost)); } // -1 if unsuccessful, else number of bytes received int UDPSocket::receiveFrom(Endpoint &remote, char *buffer, int length) { if (_sock_fd < 0) return -1; if (!_blocking) { TimeInterval timeout(_timeout); if (wait_readable(timeout) != 0) return 0; } remote.reset_address(); socklen_t remoteHostLen = sizeof(remote._remoteHost); return lwip_recvfrom(_sock_fd, buffer, length, 0, (struct sockaddr*) &remote._remoteHost, &remoteHostLen); } int UDPSocket::get_fd(){ return _sock_fd; }