utils.h
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utils.h
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	/* utils.h - Defs for utility fucthe dispatcher to the various backends.ntions
	* Copyright (C) 2009 Free Software Foundation, Inc.
	*
	* This file is part of GnuPG.
	*
	* GnuPG is free software; you can redistribute it and/or modify
	* it under the terms of the GNU General Public License as published by
	* the Free Software Foundation; either version 3 of the License, or
	* (at your option) any later version.
	*
	* GnuPG 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, see <http://www.gnu.org/licenses/>.
	*/

	#ifndef G13_UTILS_H
	#define G13_UTILS_H

	#include "../common/membuf.h"

	/* Append a new tuple to a memory buffer. */
	void append_tuple (membuf_t *membuf,
	int tag, const void *value, size_t length);

	/* The tuple descriptor object. */
	struct tupledesc_s;
	typedef struct tupledesc_s *tupledesc_t;

	gpg_error_t create_tupledesc (tupledesc_t *r_tupledesc,
	void *data, size_t datalen);
	void destroy_tupledesc (tupledesc_t tupledesc);
	tupledesc_t ref_tupledesc (tupledesc_t tupledesc);
	const void *find_tuple (tupledesc_t tupledesc,
	unsigned int tag, size_t *r_length);
	const void *next_tuple (tupledesc_t tupledesc,
	unsigned int r_tag, size_t r_length);


	#endif /G13_UTILS_H/