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/*
* Copyright (C) 2011-2012 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 <https://www.gnu.org/licenses/>
*
*/
#ifndef GNUTLS_LIB_STR_ARRAY_H
#define GNUTLS_LIB_STR_ARRAY_H
#include "gnutls_int.h"
#include "errors.h"
/* Functionality to allow an array of strings. Strings
* are allowed to be added to the list and matched against it.
*/
typedef struct gnutls_str_array_st {
char *str;
unsigned int len;
struct gnutls_str_array_st *next;
} *gnutls_str_array_t;
inline static void _gnutls_str_array_init(gnutls_str_array_t * head)
{
*head = NULL;
}
inline static void _gnutls_str_array_clear(gnutls_str_array_t * head)
{
gnutls_str_array_t prev, array = *head;
while (array != NULL) {
prev = array;
array = prev->next;
gnutls_free(prev);
}
*head = NULL;
}
inline static int _gnutls_str_array_match(gnutls_str_array_t head,
const char *str)
{
gnutls_str_array_t array = head;
while (array != NULL) {
if (strcmp(array->str, str) == 0)
return 1;
array = array->next;
}
return 0;
}
inline static void append(gnutls_str_array_t array, const char *str,
int len)
{
array->str = ((char *) array) + sizeof(struct gnutls_str_array_st);
memcpy(array->str, str, len);
array->str[len] = 0;
array->len = len;
array->next = NULL;
}
inline static int _gnutls_str_array_append(gnutls_str_array_t * head,
const char *str, int len)
{
gnutls_str_array_t prev, array;
if (*head == NULL) {
*head =
gnutls_malloc(len + 1 +
sizeof(struct gnutls_str_array_st));
if (*head == NULL)
return gnutls_assert_val(GNUTLS_E_MEMORY_ERROR);
array = *head;
append(array, str, len);
} else {
array = *head;
prev = array;
while (array != NULL) {
prev = array;
array = prev->next;
}
prev->next =
gnutls_malloc(len + 1 +
sizeof(struct gnutls_str_array_st));
array = prev->next;
if (array == NULL)
return gnutls_assert_val(GNUTLS_E_MEMORY_ERROR);
append(array, str, len);
}
return 0;
}
inline static int _gnutls_str_array_append_idna(gnutls_str_array_t * head,
const char *name, size_t size)
{
int ret;
gnutls_datum_t ahost;
/* convert the provided hostname to ACE-Labels domain. */
ret = gnutls_idna_map(name, size, &ahost, 0);
if (ret < 0) {
_gnutls_debug_log("unable to convert hostname %s to IDNA format\n", name);
/* insert the raw name */
return _gnutls_str_array_append(head, name, size);
}
ret = _gnutls_str_array_append(head, (char*)ahost.data, ahost.size);
gnutls_free(ahost.data);
return ret;
}
#endif /* GNUTLS_LIB_STR_ARRAY_H */
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