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/*
* Copyright (C) 2000-2012 Free Software Foundation, Inc.
* Copyright (C) 2016-2017 Red Hat, 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 <https://www.gnu.org/licenses/>
*
*/
#ifndef GNUTLS_LIB_STR_H
#define GNUTLS_LIB_STR_H
#include "config.h"
#include "gnutls_int.h"
#include "errors.h"
#include "datum.h"
#include <c-ctype.h>
#include "errors.h"
#include "attribute.h"
#ifdef HAVE_DCGETTEXT
#include "gettext.h"
#define _(String) dgettext(GNUTLSDOMAIN, String)
#define N_(String) gettext_noop(String)
#else
#define _(String) String
#define N_(String) String
#endif
int gnutls_utf8_password_normalize(const uint8_t *password,
unsigned password_len, gnutls_datum_t *out,
unsigned flags);
#define _gnutls_utf8_password_normalize(p, plen, out, ignore_errs) \
gnutls_utf8_password_normalize( \
(unsigned char *)p, plen, out, \
ignore_errs ? (GNUTLS_UTF8_IGNORE_ERRS) : 0)
int _gnutls_idna_email_map(const char *input, unsigned ilen,
gnutls_datum_t *output);
int _gnutls_idna_email_reverse_map(const char *input, unsigned ilen,
gnutls_datum_t *output);
inline static unsigned _gnutls_str_is_print(const char *str, unsigned size)
{
unsigned i;
for (i = 0; i < size; i++) {
if (!c_isprint(str[i]))
return 0;
}
return 1;
}
inline static unsigned _gnutls_dnsname_is_valid(const char *str, unsigned size)
{
unsigned i;
for (i = 0; i < size; i++) {
if (!(c_isalnum(str[i]) || str[i] == '-' || str[i] == '.'))
return 0;
}
return 1;
}
void _gnutls_str_cpy(char *dest, size_t dest_tot_size, const char *src);
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;
}
inline static ATTRIBUTE_NONNULL() gnutls_buffer_st
_gnutls_steal_buffer(gnutls_buffer_st *src)
{
gnutls_buffer_st dst = *src;
src->allocd = NULL;
src->data = NULL;
src->max_length = 0;
src->length = 0;
return dst;
}
void _gnutls_buffer_set_reclaiming(bool reclaiming);
extern int (*_gnutls_buffer_resize)(gnutls_buffer_st *, size_t);
int _gnutls_buffer_append_str(gnutls_buffer_st *, const char *str);
#define _gnutls_buffer_append_data gnutls_buffer_append_data
#include "num.h"
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_fixed_mpi(gnutls_buffer_st *buf, bigint_t mpi,
unsigned size);
int _gnutls_buffer_append_data_prefix(gnutls_buffer_st *buf, int pfx_size,
const void *data, size_t data_size);
int _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);
/* 32-bit prefix */
int _gnutls_buffer_pop_prefix32(gnutls_buffer_st *buf, size_t *data_size,
int check);
int _gnutls_buffer_pop_prefix24(gnutls_buffer_st *buf, size_t *data_size,
int check);
int _gnutls_buffer_pop_prefix16(gnutls_buffer_st *buf, size_t *data_size,
int check);
int _gnutls_buffer_pop_prefix8(gnutls_buffer_st *, uint8_t *, int check);
/* 32-bit prefix */
int _gnutls_buffer_pop_datum_prefix32(gnutls_buffer_st *buf,
gnutls_datum_t *data);
/* 24-bit prefix */
int _gnutls_buffer_pop_datum_prefix24(gnutls_buffer_st *buf,
gnutls_datum_t *data);
/* 16-bit prefix */
int _gnutls_buffer_pop_datum_prefix16(gnutls_buffer_st *buf,
gnutls_datum_t *data);
/* 8-bit prefix */
int _gnutls_buffer_pop_datum_prefix8(gnutls_buffer_st *buf,
gnutls_datum_t *data);
int _gnutls_buffer_to_datum(gnutls_buffer_st *str, gnutls_datum_t *data,
unsigned is_str);
inline static void _gnutls_ro_buffer_from_datum(gnutls_buffer_st *str,
gnutls_datum_t *data)
{
_gnutls_buffer_init(str);
str->length = data->size;
str->max_length = data->size;
str->data = data->data;
}
inline static void _gnutls_ro_buffer_init(gnutls_buffer_st *str,
const void *data, size_t size)
{
_gnutls_buffer_init(str);
str->length = size;
str->max_length = size;
str->data = (void *)data;
}
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);
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);
int _gnutls_buffer_base64print(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_APPEND_TS(b, s) \
{ \
ret = _gnutls_buffer_append_prefix(b, 32, \
(uint64_t)s.tv_sec >> 32); \
if (ret < 0) { \
gnutls_assert(); \
return ret; \
} \
ret = _gnutls_buffer_append_prefix(b, 32, \
s.tv_sec & 0xFFFFFFFF); \
if (ret < 0) { \
gnutls_assert(); \
return ret; \
} \
ret = _gnutls_buffer_append_prefix(b, 32, s.tv_nsec); \
if (ret < 0) { \
gnutls_assert(); \
return ret; \
} \
}
#define BUFFER_POP(b, x, s) \
{ \
ret = _gnutls_buffer_pop_data(b, x, s); \
if (ret < 0) { \
ret = GNUTLS_E_PARSING_ERROR; \
gnutls_assert(); \
goto error; \
} \
}
#define BUFFER_POP_DATUM(b, o) \
{ \
gnutls_datum_t d; \
ret = _gnutls_buffer_pop_datum_prefix32(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_prefix32(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_prefix32(b, &s, 0); \
if (ret < 0) { \
gnutls_assert(); \
goto error; \
} \
o = (void *)(intptr_t)(s); \
}
#define BUFFER_POP_TS(b, o) \
{ \
size_t s; \
uint64_t v; \
ret = _gnutls_buffer_pop_prefix32(b, &s, 0); \
if (ret < 0) { \
gnutls_assert(); \
goto error; \
} \
v = s; \
ret = _gnutls_buffer_pop_prefix32(b, &s, 0); \
if (ret < 0) { \
gnutls_assert(); \
goto error; \
} \
v = (v << 32) | s; \
ret = _gnutls_buffer_pop_prefix32(b, &s, 0); \
if (ret < 0) { \
gnutls_assert(); \
goto error; \
} \
o.tv_sec = v; \
o.tv_nsec = s; \
}
#endif /* GNUTLS_LIB_STR_H */
|
