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/* context.h
 * Copyright (C) 2002-2012 Free Software Foundation, Inc.
 *
 * Author: Timo Schulz
 *
 * This file is part of OpenCDK.
 *
 * The OpenCDK 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 2.1 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.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>
 *
 */

#ifndef CDK_CONTEXT_H
#define CDK_CONTEXT_H

#include "types.h"

struct cdk_listkey_s {
	unsigned init:1;
	cdk_stream_t inp;
	cdk_keydb_hd_t db;
	int type;
	union {
		char *patt;
		cdk_strlist_t fpatt;
	} u;
	cdk_strlist_t t;
};


struct cdk_s2k_s {
	int mode;
	byte hash_algo;
	byte salt[8];
	u32 count;
};


struct cdk_ctx_s {
	int cipher_algo;
	int digest_algo;
	struct {
		int algo;
		int level;
	} compress;
	struct {
		int mode;
		int digest_algo;
	} _s2k;
	struct {
		unsigned blockmode:1;
		unsigned armor:1;
		unsigned textmode:1;
		unsigned compress:1;
		unsigned mdc:1;
		unsigned overwrite;
		unsigned force_digest:1;
	} opt;
	struct {
		cdk_pkt_seckey_t sk;
		unsigned on:1;
	} cache;
	struct {
		cdk_keydb_hd_t sec;
		cdk_keydb_hd_t pub;
		unsigned int close_db:1;
	} db;
	char *(*passphrase_cb) (void *uint8_t, const char *prompt);
	void *passphrase_cb_value;
};

struct cdk_prefitem_s {
	byte type;
	byte value;
};

struct cdk_desig_revoker_s {
	struct cdk_desig_revoker_s *next;
	byte r_class;
	byte algid;
	byte fpr[KEY_FPR_LEN];
};

struct cdk_subpkt_s {
	struct cdk_subpkt_s *next;
	u32 size;
	byte type;
	byte *d;
};

struct cdk_keylist_s {
	struct cdk_keylist_s *next;
	union {
		cdk_pkt_pubkey_t pk;
		cdk_pkt_seckey_t sk;
	} key;
	int version;
	int type;
};

struct cdk_dek_s {
	int algo;
	int keylen;
	int use_mdc;
	byte key[32];		/* 256-bit */
};

struct cdk_strlist_s {
	struct cdk_strlist_s *next;
	char *d;
};

#endif				/* CDK_CONTEXT_H */