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/******************************************************************
* $Id: nanohttp-socket.h,v 1.20 2006/01/10 11:29:05 snowdrop Exp $
*
* CSOAP Project: A http client/server library in C
* Copyright (C) 2003 Ferhat Ayaz
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
* Email: ayaz@jprogrammer.net
******************************************************************/
#ifndef NANO_HTTP_SOCKET_H
#define NANO_HTTP_SOCKET_H
#include <nanohttp/nanohttp-common.h>
#include <time.h>
#ifdef HAVE_SSL
#include <openssl/ssl.h>
#endif
#ifdef WIN32
#include <winsock2.h>
#endif
#ifdef WIN32
typedef struct hsocket_t
{
#ifdef HAVE_SSL
SSL *ssl;
#endif
SOCKET sock;
} hsocket_t;
typedef int socklen_t;
#else
typedef struct hsocket_t
{
#ifdef HAVE_SSL
SSL *ssl;
#endif
int sock;
} hsocket_t;
#endif
/**
Initializes the socket modul. This should be called only
once for an application.
@returns This function should always return H_OK.
*/
herror_t hsocket_module_init();
/**
Destroys the socket modul. This should be called after
finishing an application.
*/
void hsocket_module_destroy();
/**
Initializes a given socket object. This function should
be called for every socket before using it.
@param sock the destination socket to initialize.
@returns This function should always return H_OK.
*/
herror_t hsocket_init(hsocket_t * sock);
/**
Destroys and releases a given socket.
@param sock the socket to destroy
*/
void hsocket_free(hsocket_t sock);
/**
Connects to a given host. The hostname can be an IP number
or a humen readable hostname.
@param sock the destonation socket object to use
@param host hostname
@param port port number to connect to
@returns H_OK if success. One of the followings if fails:<P>
<BR>HSOCKET_ERROR_CREATE
<BR>HSOCKET_ERROR_GET_HOSTNAME
<BR>HSOCKET_ERROR_CONNECT
*/
herror_t hsocket_open(hsocket_t * sock, const char *host, int port);
/**
Close a socket connection.
@param sock the socket to close
*/
void hsocket_close(hsocket_t sock);
/**
Binds a socket to a given port number. After bind you
can call hsocket_listen() to listen to the port.
@param sock socket to use.
@param port port number to bind to
@returns H_OK if success. One of the followings if fails:<P>
<BR>HSOCKET_ERROR_CREATE
<BR>HSOCKET_ERROR_BIND
@see hsocket_listen
*/
herror_t hsocket_bind(hsocket_t * sock, int port);
/**
Set the socket to the listen mode. You must bind
the socket to a port with hsocket_bind() before
you can listen to the port.
@param sock the socket to use
@returns H_OK if success. One of the followings if fails:<P>
<BR>HSOCKET_ERROR_NOT_INITIALIZED
<BR>HSOCKET_ERROR_LISTEN
*/
herror_t hsocket_listen(hsocket_t sock);
/**
Accepts an incoming socket request. Note that this function
will not return until a socket connection is ready.
@param sock the socket which listents to a port
@param dest the destination socket which will be created
@returns H_OK if success. One of the followings if fails:<P>
<BR>HSOCKET_ERROR_NOT_INITIALIZED
<BR>HSOCKET_ERROR_ACCEPT
*/
herror_t hsocket_accept(hsocket_t sock, hsocket_t * dest);
/**
Sends data throught the socket.
@param sock the socket to use to send the data
@param bytes bytes to send
@param size size of memory to sent pointed by bytes.
@returns H_OK if success. One of the followings if fails:<P>
<BR>HSOCKET_ERROR_NOT_INITIALIZED
<BR>HSOCKET_ERROR_SEND
*/
herror_t hsocket_nsend(hsocket_t sock, const byte_t * bytes, int size);
/**
Sends a string throught the socket
@param sock the socket to use to send the data
@param str the null terminated string to sent
@returns H_OK if success. One of the followings if fails:<P>
<BR>HSOCKET_ERROR_NOT_INITIALIZED
<BR>HSOCKET_ERROR_SEND
*/
herror_t hsocket_send(hsocket_t sock, const char *str);
/**
Reads data from the socket.
@param sock the socket to read data from
@param buffer the buffer to use to save the readed bytes
@param size the maximum size of bytes to read
@param force if force is 1 then hsocket_read() will wait until
maximum size of bytes (size parameter) was readed. Otherwise
this function will not wait and will return with the bytes
quequed on the socket.
@returns This function will return -1 if an read error was occured.
Otherwise the return value is the size of bytes readed from
the socket.
*/
herror_t hsocket_read(hsocket_t sock, byte_t * buffer, int size, int force,
int *readed);
/**
Sets the goven socket to non-blocking socket mode.
@param sock the socket to set into the non-blocking mode
@returns H_OK if success. One of the followings if fails:<P>
<BR>HSOCKET_ERROR_NOT_INITIALIZED
<BR>HSOCKET_ERROR_IOCTL
*/
herror_t hsocket_block(hsocket_t sock, int block);
#endif
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