135 lines
2.9 KiB
C
135 lines
2.9 KiB
C
/*
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program 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
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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xrdp: A Remote Desktop Protocol server.
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Copyright (C) Jay Sorg 2005-2008
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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(s_log, "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(s_log, "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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