denyhosts/clamav/libclamav/pdfdecode.h

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2022-10-22 18:41:00 +08:00
/*
* Copyright (C) 2016-2022 Cisco and/or its affiliates. All rights reserved.
*
* Author: Kevin Lin
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*
* In addition, as a special exception, the copyright holders give
* permission to link the code of portions of this program with the
* OpenSSL library under certain conditions as described in each
* individual source file, and distribute linked combinations
* including the two.
*
* You must obey the GNU General Public License in all respects
* for all of the code used other than OpenSSL. If you modify
* file(s) with this exception, you may extend this exception to your
* version of the file(s), but you are not obligated to do so. If you
* do not wish to do so, delete this exception statement from your
* version. If you delete this exception statement from all source
* files in the program, then also delete it here.
*/
#ifndef __PDFDECODE_H__
#define __PDFDECODE_H__
#include "pdf.h"
/**
* @brief Wrapper function for pdf_decodestream_internal.
*
* Allocate a token object to store decoded filter data.
* Parse/decode the filter data and scan it.
*
* @param pdf Pdf context structure.
* @param obj The object we found the filter content in.
* @param params Dictionary parameters describing the filter data.
* @param stream Filter stream buffer pointer.
* @param streamlen Length of filter stream buffer.
* @param xref Indicates if the stream is an /XRef stream. Do not apply forced decryption on /XRef streams.
* @param fout File descriptor to write to a temp file.
* @param[out] rc Return code ()
* @param objstm Object stream context structure.
* @return size_t The number of bytes written to fout to be scanned.
*/
size_t pdf_decodestream(
struct pdf_struct *pdf, struct pdf_obj *obj, struct pdf_dict *params,
const char *stream, uint32_t streamlen, int xref, int fout, cl_error_t *status,
struct objstm_struct *objstm);
#endif /* __PDFDECODE_H__ */