/* parsetlv.h -  TLV functions definitions

 * Copyright (C) 2012 g10 Code GmbH

 *

 * This file 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 file 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 <https://www.gnu.org/licenses/>.

 */

#ifndef PARSETLV_H

#define PARSETLV_H

/* ASN.1 constants.  */

#define ASN1_CLASS_UNIVERSAL   0

#define ASN1_CLASS_APPLICATION 1

#define ASN1_CLASS_CONTEXT     2

#define ASN1_CLASS_PRIVATE     3

#define ASN1_TAG_INTEGER       2

#define ASN1_TAG_OBJECT_ID     6

#define ASN1_TAG_SEQUENCE     16

/* Object used with parse_tlv.  */

struct tlvinfo_s

{

  int cls;            /* The class of the tag.  */

  int tag;            /* The tag.  */

  int is_cons;        /* True if it is a constructed object.  */

  int is_ndef;        /* True if the object has an indefinite length.  */

  size_t length;      /* The length of the value.  */

  size_t nhdr;        /* The number of octets in the header (tag,length). */

};

typedef struct tlvinfo_s tlvinfo_t;

/*-- parsetlv.c --*/

int _gpgme_parse_tlv (char const **buffer, size_t *size, tlvinfo_t *ti);

#define parse_tlv(a,b,c) _gpgme_parse_tlv ((a), (b), (c))

#endif /*PARSETLV_H*/