/* libp11, a simple layer on to of PKCS#11 API
* Copyright (C) 2005 Olaf Kirch <okir@lst.de>
* Copyright (C) 2015 MichaĆ Trojnara <Michal.Trojnara@stunnel.org>
*
* This 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.
*
* 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 library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "libp11-int.h"
#include <string.h>
#include <openssl/crypto.h>
/* PKCS11 strings are fixed size blank padded,
* so when strduping them we must make sure
* we stop at the end of the buffer, and while we're
* at it it's nice to remove the padding */
char *pkcs11_strdup(char *mem, size_t size)
{
char *res;
while (size && mem[size - 1] == ' ')
size--;
res = OPENSSL_malloc(size + 1);
if (res == NULL)
return NULL;
memcpy(res, mem, size);
res[size] = '\0';
return res;
}
/*
* CRYPTO dynlock wrappers: 0 is an invalid dynamic lock ID
*/
#if OPENSSL_VERSION_NUMBER < 0x10100004L || defined(LIBRESSL_VERSION_NUMBER)
int CRYPTO_THREAD_lock_new()
{
int i;
if (CRYPTO_get_dynlock_create_callback() == NULL ||
CRYPTO_get_dynlock_lock_callback() == NULL ||
CRYPTO_get_dynlock_destroy_callback() == NULL)
return 0; /* Dynamic callbacks not set */
i = CRYPTO_get_new_dynlockid();
if (i == 0)
ERR_clear_error(); /* Dynamic locks are optional -> ignore */
return i;
}
void CRYPTO_THREAD_lock_free(int i)
{
if (i)
CRYPTO_destroy_dynlockid(i);
}
#endif
/* vim: set noexpandtab: */