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/* ====================================================================
* The Kannel Software License, Version 1.0
*
* Copyright (c) 2001-2018 Kannel Group
* Copyright (c) 1998-2001 WapIT Ltd.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Kannel Group (http://www.kannel.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Kannel" and "Kannel Group" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please
* contact org@kannel.org.
*
* 5. Products derived from this software may not be called "Kannel",
* nor may "Kannel" appear in their name, without prior written
* permission of the Kannel Group.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE KANNEL GROUP OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Kannel Group. For more information on
* the Kannel Group, please see <http://www.kannel.org/>.
*
* Portions of this software are based upon software originally written at
* WapIT Ltd., Helsinki, Finland for the Kannel project.
*/
/*
*
* wsstream_data.c
*
* Author: Markku Rossi <mtr@iki.fi>
*
* Copyright (c) 1999-2000 WAPIT OY LTD.
* All rights reserved.
*
* Implementation of the data streams.
*
*/
#include "wmlscript/wsint.h"
/********************* Types and definitions ****************************/
struct WsStreamDataInputCtxRec
{
const unsigned char *data;
size_t data_len;
size_t data_pos;
};
typedef struct WsStreamDataInputCtxRec WsStreamDataInputCtx;
/********************* Static method functions **************************/
static size_t data_input(void *context, WsUInt32 *buf, size_t buflen)
{
WsStreamDataInputCtx *ctx = (WsStreamDataInputCtx *) context;
size_t read;
for (read = 0;
read < buflen && ctx->data_pos < ctx->data_len;
read++, ctx->data_pos++)
buf[read] = ctx->data[ctx->data_pos];
return read;
}
static void data_close(void *context)
{
WsStreamDataInputCtx *ctx = (WsStreamDataInputCtx *) context;
ws_free(ctx);
}
/********************* Global functions *********************************/
WsStream *ws_stream_new_data_input(const unsigned char *data, size_t data_len)
{
WsStreamDataInputCtx *ctx = ws_calloc(1, sizeof(*ctx));
WsStream *stream;
if (ctx == NULL)
return NULL;
ctx->data = data;
ctx->data_len = data_len;
stream = ws_stream_new(ctx, data_input, NULL, data_close);
if (stream == NULL)
/* The stream creation failed. Close the stream context. */
data_close(ctx);
return stream;
}
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