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-rw-r--r--scd/tlv.h107
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diff --git a/scd/tlv.h b/scd/tlv.h
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--- a/scd/tlv.h
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-/* tlv.h - Tag-Length-Value Utilities
- * Copyright (C) 2004 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 SCD_TLV_H
-#define SCD_TLV_H 1
-
-
-enum tlv_tag_class {
- CLASS_UNIVERSAL = 0,
- CLASS_APPLICATION = 1,
- CLASS_CONTEXT = 2,
- CLASS_PRIVATE =3
-};
-
-enum tlv_tag_type {
- TAG_NONE = 0,
- TAG_BOOLEAN = 1,
- TAG_INTEGER = 2,
- TAG_BIT_STRING = 3,
- TAG_OCTET_STRING = 4,
- TAG_NULL = 5,
- TAG_OBJECT_ID = 6,
- TAG_OBJECT_DESCRIPTOR = 7,
- TAG_EXTERNAL = 8,
- TAG_REAL = 9,
- TAG_ENUMERATED = 10,
- TAG_EMBEDDED_PDV = 11,
- TAG_UTF8_STRING = 12,
- TAG_REALTIVE_OID = 13,
- TAG_SEQUENCE = 16,
- TAG_SET = 17,
- TAG_NUMERIC_STRING = 18,
- TAG_PRINTABLE_STRING = 19,
- TAG_TELETEX_STRING = 20,
- TAG_VIDEOTEX_STRING = 21,
- TAG_IA5_STRING = 22,
- TAG_UTC_TIME = 23,
- TAG_GENERALIZED_TIME = 24,
- TAG_GRAPHIC_STRING = 25,
- TAG_VISIBLE_STRING = 26,
- TAG_GENERAL_STRING = 27,
- TAG_UNIVERSAL_STRING = 28,
- TAG_CHARACTER_STRING = 29,
- TAG_BMP_STRING = 30
-};
-
-
-/* Locate a TLV encoded data object in BUFFER of LENGTH and return a
- pointer to value as well as its length in NBYTES. Return NULL if
- it was not found or if the object does not fit into the buffer. */
-const unsigned char *find_tlv (const unsigned char *buffer, size_t length,
- int tag, size_t *nbytes);
-
-
-/* Locate a TLV encoded data object in BUFFER of LENGTH and return a
- pointer to value as well as its length in NBYTES. Return NULL if
- it was not found. Note, that the function does not check whether
- the value fits into the provided buffer.*/
-const unsigned char *find_tlv_unchecked (const unsigned char *buffer,
- size_t length,
- int tag, size_t *nbytes);
-
-
-/* ASN.1 BER parser: Parse BUFFER of length SIZE and return the tag
- and the length part from the TLV triplet. Update BUFFER and SIZE
- on success. */
-gpg_error_t parse_ber_header (unsigned char const **buffer, size_t *size,
- int *r_class, int *r_tag,
- int *r_constructed,
- int *r_ndef, size_t *r_length, size_t *r_nhdr);
-
-
-
-/* Return the next token of an canconical encoded S-expression. BUF
- is the pointer to the S-expression and BUFLEN is a pointer to the
- length of this S-expression (used to validate the syntax). Both
- are updated to reflect the new position. The token itself is
- returned as a pointer into the orginal buffer at TOK and TOKLEN.
- If a parentheses is the next token, TOK will be set to NULL.
- TOKLEN is checked to be within the bounds. On error a error code
- is returned and all pointers should are not guaranteed to point to
- a meanigful value. DEPTH should be initialized to 0 and will
- reflect on return the actual depth of the tree. To detect the end
- of the S-expression it is advisable to check DEPTH after a
- successful return. */
-gpg_error_t parse_sexp (unsigned char const **buf, size_t *buflen,
- int *depth, unsigned char const **tok, size_t *toklen);
-
-
-
-#endif /* SCD_TLV_H */