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/*
* Copyright (C) 2000-2012 Free Software Foundation, Inc.
*
* Author: Nikos Mavrogiannopoulos
*
* This file is part of GnuTLS.
*
* The GnuTLS 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 GNUTLS_STR_H
#define GNUTLS_STR_H
#include <config.h>
#include <gnutls_int.h>
#include <gnutls_datum.h>
#ifdef HAVE_DCGETTEXT
# include "gettext.h"
# define _(String) dgettext (PACKAGE, String)
# define N_(String) gettext_noop (String)
#else
# define _(String) String
# define N_(String) String
#endif
void _gnutls_str_cpy(char *dest, size_t dest_tot_size, const char *src);
void _gnutls_mem_cpy(char *dest, size_t dest_tot_size, const char *src,
size_t src_size);
void _gnutls_str_cat(char *dest, size_t dest_tot_size, const char *src);
typedef struct gnutls_buffer_st {
uint8_t *allocd; /* pointer to allocated data */
uint8_t *data; /* API: pointer to data to copy from */
size_t max_length;
size_t length; /* API: current length */
} gnutls_buffer_st;
/* Initialize a buffer */
void _gnutls_buffer_init(gnutls_buffer_st *);
/* Free the data in a buffer */
void _gnutls_buffer_clear(gnutls_buffer_st *);
/* Set the buffer data to be of zero length */
inline static void _gnutls_buffer_reset(gnutls_buffer_st * buf)
{
buf->data = buf->allocd;
buf->length = 0;
}
int _gnutls_buffer_resize(gnutls_buffer_st *, size_t new_size);
int _gnutls_buffer_append_str(gnutls_buffer_st *, const char *str);
#define _gnutls_buffer_append_data gnutls_buffer_append_data
#include <gnutls_num.h>
void _gnutls_buffer_replace_data(gnutls_buffer_st * buf,
gnutls_datum_t * data);
int _gnutls_buffer_append_prefix(gnutls_buffer_st * buf, int pfx_size,
size_t data_size);
int _gnutls_buffer_append_mpi(gnutls_buffer_st * buf, int pfx_size,
bigint_t, int lz);
int _gnutls_buffer_append_data_prefix(gnutls_buffer_st * buf, int pfx_size,
const void *data, size_t data_size);
void _gnutls_buffer_pop_data(gnutls_buffer_st *, void *, size_t * size);
void _gnutls_buffer_pop_datum(gnutls_buffer_st *, gnutls_datum_t *,
size_t max_size);
int _gnutls_buffer_pop_prefix(gnutls_buffer_st * buf, size_t * data_size,
int check);
int _gnutls_buffer_pop_data_prefix(gnutls_buffer_st * buf, void *data,
size_t * data_size);
int _gnutls_buffer_pop_datum_prefix(gnutls_buffer_st * buf,
gnutls_datum_t * data);
int _gnutls_buffer_to_datum(gnutls_buffer_st * str, gnutls_datum_t * data, unsigned is_str);
int
_gnutls_buffer_append_escape(gnutls_buffer_st * dest, const void *data,
size_t data_size, const char *invalid_chars);
int _gnutls_buffer_unescape(gnutls_buffer_st * dest);
#ifndef __attribute__
/* This feature is available in gcc versions 2.5 and later. */
#if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5)
#define __attribute__(Spec) /* empty */
#endif
#endif
int _gnutls_buffer_append_printf(gnutls_buffer_st * dest, const char *fmt,
...)
__attribute__ ((format(printf, 2, 3)));
void _gnutls_buffer_hexprint(gnutls_buffer_st * str,
const void *data, size_t len);
void _gnutls_buffer_hexdump(gnutls_buffer_st * str, const void *data,
size_t len, const char *spc);
void _gnutls_buffer_asciiprint(gnutls_buffer_st * str,
const char *data, size_t len);
char *_gnutls_bin2hex(const void *old, size_t oldlen, char *buffer,
size_t buffer_size, const char *separator);
int _gnutls_hex2bin(const char *hex_data, size_t hex_size,
uint8_t * bin_data, size_t * bin_size);
int _gnutls_hostname_compare(const char *certname, size_t certnamesize,
const char *hostname, unsigned vflags);
#define MAX_CN 256
#define MAX_DN 1024
#define BUFFER_APPEND(b, x, s) { \
ret = _gnutls_buffer_append_data(b, x, s); \
if (ret < 0) { \
gnutls_assert(); \
return ret; \
} \
}
/* append data prefixed with 4-bytes length field*/
#define BUFFER_APPEND_PFX4(b, x, s) { \
ret = _gnutls_buffer_append_data_prefix(b, 32, x, s); \
if (ret < 0) { \
gnutls_assert(); \
return ret; \
} \
}
#define BUFFER_APPEND_PFX3(b, x, s) { \
ret = _gnutls_buffer_append_data_prefix(b, 24, x, s); \
if (ret < 0) { \
gnutls_assert(); \
return ret; \
} \
}
#define BUFFER_APPEND_PFX2(b, x, s) { \
ret = _gnutls_buffer_append_data_prefix(b, 16, x, s); \
if (ret < 0) { \
gnutls_assert(); \
return ret; \
} \
}
#define BUFFER_APPEND_PFX1(b, x, s) { \
ret = _gnutls_buffer_append_data_prefix(b, 8, x, s); \
if (ret < 0) { \
gnutls_assert(); \
return ret; \
} \
}
#define BUFFER_APPEND_NUM(b, s) { \
ret = _gnutls_buffer_append_prefix(b, 32, s); \
if (ret < 0) { \
gnutls_assert(); \
return ret; \
} \
}
#define BUFFER_POP(b, x, s) { \
size_t is = s; \
_gnutls_buffer_pop_data(b, x, &is); \
if (is != s) { \
ret = GNUTLS_E_PARSING_ERROR; \
gnutls_assert(); \
goto error; \
} \
}
#define BUFFER_POP_DATUM(b, o) { \
gnutls_datum_t d; \
ret = _gnutls_buffer_pop_datum_prefix(b, &d); \
if (ret >= 0) \
ret = _gnutls_set_datum (o, d.data, d.size); \
if (ret < 0) { \
gnutls_assert(); \
goto error; \
} \
}
#define BUFFER_POP_NUM(b, o) { \
size_t s; \
ret = _gnutls_buffer_pop_prefix(b, &s, 0); \
if (ret < 0) { \
gnutls_assert(); \
goto error; \
} \
o = s; \
}
#define BUFFER_POP_CAST_NUM(b, o) { \
size_t s; \
ret = _gnutls_buffer_pop_prefix(b, &s, 0); \
if (ret < 0) { \
gnutls_assert(); \
goto error; \
} \
o = (void *) (intptr_t)(s); \
}
#endif
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