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/* input.h */
/* nettle, low-level cryptographics library
*
* Copyright (C) 2002, 2003 Niels Möller
*
* The nettle 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.
*
* The nettle 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 the nettle library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
* MA 02111-1307, USA.
*/
#ifndef NETTLE_TOOLS_INPUT_H_INCLUDED
#define NETTLE_TOOLS_INPUT_H_INCLUDED
#include "misc.h"
#include "base16.h"
#include "base64.h"
#include "buffer.h"
#include "nettle-meta.h"
#include <stdio.h>
/* Special marks in the input stream */
enum sexp_char_type
{
SEXP_NORMAL_CHAR = 0,
SEXP_EOF_CHAR, SEXP_END_CHAR,
};
struct sexp_input
{
FILE *f;
/* Character stream, consisting of ordinary characters,
* SEXP_EOF_CHAR, and SEXP_END_CHAR. */
enum sexp_char_type ctype;
uint8_t c;
const struct nettle_armor *coding;
union {
struct base64_decode_ctx base64;
struct base16_decode_ctx hex;
} state;
/* Terminator for current coding */
uint8_t terminator;
/* Type of current token */
enum sexp_token token;
};
void
sexp_input_init(struct sexp_input *input, FILE *f);
void
sexp_get_char(struct sexp_input *input);
void
sexp_get_token(struct sexp_input *input, enum sexp_mode mode,
struct nettle_buffer *string);
#endif /* NETTLE_TOOLS_INPUT_H_INCLUDED */
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