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add: first part emv @merlokk

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iceman1001 2017-11-10 20:08:28 +01:00
commit 23506bd1d7
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52
client/emv/tlv.h Normal file
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/*
* libopenemv - a library to work with EMV family of smart cards
* Copyright (C) 2012, 2015 Dmitry Eremin-Solenikov
*
* This 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.
*
* https://github.com/lumag/emv-tools/blob/master/lib/include/openemv/tlv.h
*/
#ifndef TLV_H
#define TLV_H
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
typedef uint16_t tlv_tag_t;
struct tlv {
tlv_tag_t tag;
size_t len;
const unsigned char *value;
};
struct tlvdb;
typedef bool (*tlv_cb)(void *data, const struct tlv *tlv);
struct tlvdb *tlvdb_fixed(tlv_tag_t tag, size_t len, const unsigned char *value);
struct tlvdb *tlvdb_external(tlv_tag_t tag, size_t len, const unsigned char *value);
struct tlvdb *tlvdb_parse(const unsigned char *buf, size_t len);
struct tlvdb *tlvdb_parse_multi(const unsigned char *buf, size_t len);
void tlvdb_free(struct tlvdb *tlvdb);
void tlvdb_add(struct tlvdb *tlvdb, struct tlvdb *other);
void tlvdb_visit(const struct tlvdb *tlvdb, tlv_cb cb, void *data);
const struct tlv *tlvdb_get(const struct tlvdb *tlvdb, tlv_tag_t tag, const struct tlv *prev);
bool tlv_parse_tl(const unsigned char **buf, size_t *len, struct tlv *tlv);
unsigned char *tlv_encode(const struct tlv *tlv, size_t *len);
bool tlv_is_constructed(const struct tlv *tlv);
bool tlv_equal(const struct tlv *a, const struct tlv *b);
#endif