146 lines
2.7 KiB
C
146 lines
2.7 KiB
C
/**
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* FreeRDP: A Remote Desktop Protocol Client
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* Transmission Control Protocol (TCP)
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*
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* Copyright 2011 Vic Lee
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* Copyright 2011 Marc-Andre Moreau <marcandre.moreau@gmail.com>
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include <errno.h>
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#include <sys/socket.h>
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#include <netdb.h>
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#include <fcntl.h>
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#include <freerdp/utils/stream.h>
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#include <freerdp/utils/memory.h>
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#include "tcp.h"
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boolean
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tcp_connect(rdpTcp * tcp, const char * hostname, int port)
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{
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int status;
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int sockfd = -1;
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char servname[10];
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struct addrinfo hints = { 0 };
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struct addrinfo * res, * ai;
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hints.ai_family = AF_UNSPEC;
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hints.ai_socktype = SOCK_STREAM;
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snprintf(servname, sizeof(servname), "%d", port);
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status = getaddrinfo(hostname, servname, &hints, &res);
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if (status != 0)
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{
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printf("transport_connect: getaddrinfo (%s)\n", gai_strerror(status));
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return False;
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}
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for (ai = res; ai; ai = ai->ai_next)
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{
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sockfd = socket(ai->ai_family, ai->ai_socktype, ai->ai_protocol);
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if (sockfd < 0)
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continue;
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if (connect(sockfd, ai->ai_addr, ai->ai_addrlen) == 0)
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{
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printf("connected to %s:%s\n", hostname, servname);
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break;
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}
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sockfd = -1;
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}
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freeaddrinfo(res);
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if (sockfd == -1)
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{
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printf("unable to connect to %s:%s\n", hostname, servname);
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return False;
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}
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tcp->sockfd = sockfd;
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return True;
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}
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boolean
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tcp_disconnect(rdpTcp * tcp)
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{
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if (tcp->sockfd != -1)
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{
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close(tcp->sockfd);
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tcp->sockfd = -1;
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}
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return True;
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}
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boolean
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tcp_set_blocking_mode(rdpTcp * tcp, boolean blocking)
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{
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int flags;
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flags = fcntl(tcp->sockfd, F_GETFL);
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if (flags == -1)
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{
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printf("transport_configure_sockfd: fcntl failed.\n");
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return False;
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}
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if (blocking == True)
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{
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/* blocking */
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fcntl(tcp->sockfd, F_SETFL, flags & ~(O_NONBLOCK));
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}
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else
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{
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/* non-blocking */
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fcntl(tcp->sockfd, F_SETFL, flags | O_NONBLOCK);
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}
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return True;
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}
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rdpTcp*
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tcp_new()
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{
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rdpTcp *tcp = (rdpTcp*) xzalloc(sizeof(rdpTcp));
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if (tcp != NULL)
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{
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tcp->sockfd = -1;
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tcp->connect = tcp_connect;
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tcp->disconnect = tcp_disconnect;
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tcp->set_blocking_mode = tcp_set_blocking_mode;
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}
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return tcp;
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}
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void
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tcp_free(rdpTcp* tcp)
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{
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if (tcp != NULL)
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{
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xfree(tcp);
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}
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}
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