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/*
* Copyright (C) 2004-2012 George Yunaev gyunaev@ulduzsoft.com
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 3 of the License, or (at your
* option) any later version.
*
* This library is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
* License for more details.
*/
/*
* The sockets interface was moved out to simplify going OpenSSL integration.
*/
#if !defined (_WIN32)
#include <sys/socket.h>
#include <netdb.h>
#include <arpa/inet.h>
#include <netinet/in.h>
#include <fcntl.h>
#define IS_SOCKET_ERROR(a) ((a)<0)
typedef int socket_t;
#else
#include <winsock2.h>
#include <ws2tcpip.h>
#include <windows.h>
#define IS_SOCKET_ERROR(a) ((a)==SOCKET_ERROR)
#if !defined(EWOULDBLOCK)
#define EWOULDBLOCK WSAEWOULDBLOCK
#endif
#if !defined(EINPROGRESS)
#define EINPROGRESS WSAEINPROGRESS
#endif
#if !defined(EINTR)
#define EINTR WSAEINTR
#endif
#if !defined(EAGAIN)
#define EAGAIN EWOULDBLOCK
#endif
typedef SOCKET socket_t;
#endif
#ifndef INADDR_NONE
#define INADDR_NONE 0xFFFFFFFF
#endif
static int socket_error()
{
#if !defined (_WIN32)
return errno;
#else
return WSAGetLastError();
#endif
}
static int socket_create (int domain, int type, socket_t * sock)
{
*sock = socket (domain, type, 0);
return IS_SOCKET_ERROR(*sock) ? 1 : 0;
}
static int socket_make_nonblocking (socket_t * sock)
{
#if !defined (_WIN32)
return fcntl (*sock, F_SETFL, fcntl (*sock, F_GETFL,0 ) | O_NONBLOCK) != 0;
#else
unsigned long mode = 0;
return ioctlsocket (*sock, FIONBIO, &mode) == SOCKET_ERROR;
#endif
}
static int socket_close (socket_t * sock)
{
#if !defined (_WIN32)
close (*sock);
#else
closesocket (*sock);
#endif
*sock = -1;
return 0;
}
static int socket_connect (socket_t * sock, const struct sockaddr *saddr, socklen_t len)
{
while ( 1 )
{
if ( connect (*sock, saddr, len) < 0 )
{
if ( socket_error() == EINTR )
continue;
if ( socket_error() != EINPROGRESS && socket_error() != EWOULDBLOCK )
return 1;
}
return 0;
}
}
static int socket_accept (socket_t * sock, socket_t * newsock, struct sockaddr *saddr, socklen_t * len)
{
while ( IS_SOCKET_ERROR(*newsock = accept (*sock, saddr, len)) )
{
if ( socket_error() == EINTR )
continue;
return 1;
}
return 0;
}
static int socket_recv (socket_t * sock, void * buf, size_t len)
{
int length;
while ( (length = recv (*sock, buf, len, 0)) < 0 )
{
int err = socket_error();
if ( err != EINTR && err != EAGAIN )
break;
}
return length;
}
static int socket_send (socket_t * sock, const void *buf, size_t len)
{
int length;
while ( (length = send (*sock, buf, len, 0)) < 0 )
{
int err = socket_error();
if ( err != EINTR && err != EAGAIN )
break;
}
return length;
}
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