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/* libp11, a simple layer on to of PKCS#11 API
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* Copyright (C) 2005 Olaf Kirch <okir@lst.de>
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* Copyright (C) 2015 MichaĆ Trojnara <Michal.Trojnara@stunnel.org>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "libp11-int.h"
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#include <string.h>
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#include <openssl/crypto.h>
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/* PKCS11 strings are fixed size blank padded,
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* so when strduping them we must make sure
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* we stop at the end of the buffer, and while we're
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* at it it's nice to remove the padding */
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char *pkcs11_strdup(char *mem, size_t size)
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{
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char *res;
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while (size && mem[size - 1] == ' ')
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size--;
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res = OPENSSL_malloc(size + 1);
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if (res == NULL)
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return NULL;
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memcpy(res, mem, size);
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res[size] = '\0';
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return res;
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}
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/*
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* CRYPTO dynlock wrappers: 0 is an invalid dynamic lock ID
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*/
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#if OPENSSL_VERSION_NUMBER < 0x10100004L || defined(LIBRESSL_VERSION_NUMBER)
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int CRYPTO_THREAD_lock_new()
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{
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int i;
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if (CRYPTO_get_dynlock_create_callback() == NULL ||
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CRYPTO_get_dynlock_lock_callback() == NULL ||
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CRYPTO_get_dynlock_destroy_callback() == NULL)
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return 0; /* Dynamic callbacks not set */
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i = CRYPTO_get_new_dynlockid();
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if (i == 0)
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ERR_clear_error(); /* Dynamic locks are optional -> ignore */
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return i;
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}
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void CRYPTO_THREAD_lock_free(int i)
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{
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if (i)
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CRYPTO_destroy_dynlockid(i);
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}
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#endif
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/* vim: set noexpandtab: */
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