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135 lines
3.0 KiB
135 lines
3.0 KiB
/**
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* xrdp: A Remote Desktop Protocol server.
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*
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* Copyright (C) Jay Sorg 2004-2012
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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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/**
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*
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* @file tcp.c
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* @brief Tcp stream funcions
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* @author Jay Sorg, Simone Fedele
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*
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*/
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#include "libscp_tcp.h"
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#include <netinet/in.h>
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#include <sys/socket.h>
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#include <arpa/inet.h>
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#include <stdlib.h>
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#include <string.h>
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extern struct log_config *s_log;
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/*****************************************************************************/
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int DEFAULT_CC
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scp_tcp_force_recv(int sck, char *data, int len)
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{
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int rcvd;
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int block;
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LOG_DBG("scp_tcp_force_recv()");
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block = scp_lock_fork_critical_section_start();
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while (len > 0)
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{
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rcvd = g_tcp_recv(sck, data, len, 0);
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if (rcvd == -1)
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{
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if (g_tcp_last_error_would_block(sck))
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{
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g_sleep(1);
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}
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else
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{
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scp_lock_fork_critical_section_end(block);
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return 1;
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}
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}
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else if (rcvd == 0)
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{
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scp_lock_fork_critical_section_end(block);
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return 1;
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}
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else
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{
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data += rcvd;
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len -= rcvd;
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}
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}
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scp_lock_fork_critical_section_end(block);
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return 0;
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}
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/*****************************************************************************/
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int DEFAULT_CC
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scp_tcp_force_send(int sck, char *data, int len)
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{
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int sent;
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int block;
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LOG_DBG("scp_tcp_force_send()");
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block = scp_lock_fork_critical_section_start();
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while (len > 0)
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{
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sent = g_tcp_send(sck, data, len, 0);
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if (sent == -1)
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{
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if (g_tcp_last_error_would_block(sck))
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{
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g_sleep(1);
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}
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else
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{
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scp_lock_fork_critical_section_end(block);
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return 1;
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}
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}
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else if (sent == 0)
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{
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scp_lock_fork_critical_section_end(block);
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return 1;
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}
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else
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{
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data += sent;
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len -= sent;
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}
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}
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scp_lock_fork_critical_section_end(block);
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return 0;
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}
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/*****************************************************************************/
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int DEFAULT_CC
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scp_tcp_bind(int sck, char *addr, char *port)
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{
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struct sockaddr_in s;
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memset(&s, 0, sizeof(struct sockaddr_in));
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s.sin_family = AF_INET;
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s.sin_port = htons(atoi(port));
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s.sin_addr.s_addr = inet_addr(addr);
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return bind(sck, (struct sockaddr *)&s, sizeof(struct sockaddr_in));
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}
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