77 lines
2.7 KiB
C++
77 lines
2.7 KiB
C++
/*
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* Copyright 2012 The Android Open Source Project
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#include <openssl/engine.h>
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/**
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* Makes sure the ex_data for the keyhandle is initially set to NULL.
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*/
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int keyhandle_new(void*, void*, CRYPTO_EX_DATA* ad, int idx, long, void*) {
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return CRYPTO_set_ex_data(ad, idx, NULL);
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}
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/**
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* Frees a previously allocated keyhandle stored in ex_data.
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*/
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void keyhandle_free(void *, void *ptr, CRYPTO_EX_DATA*, int, long, void*) {
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char* keyhandle = reinterpret_cast<char*>(ptr);
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if (keyhandle != NULL) {
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free(keyhandle);
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}
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}
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/**
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* Duplicates a keyhandle stored in ex_data in case we copy a key.
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*/
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int keyhandle_dup(CRYPTO_EX_DATA* to, CRYPTO_EX_DATA*, void *ptrRef, int idx, long, void *) {
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// This appears to be a bug in OpenSSL.
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void** ptr = reinterpret_cast<void**>(ptrRef);
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char* keyhandle = reinterpret_cast<char*>(*ptr);
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if (keyhandle != NULL) {
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char* keyhandle_copy = strdup(keyhandle);
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*ptr = keyhandle_copy;
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// Call this in case OpenSSL is fixed in the future.
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(void) CRYPTO_set_ex_data(to, idx, keyhandle_copy);
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}
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return 1;
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}
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void *ex_data_dup(void *data) {
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char* keyhandle = reinterpret_cast<char*>(data);
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return strdup(keyhandle);
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}
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void ex_data_free(void *data) {
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char* keyhandle = reinterpret_cast<char*>(data);
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free(keyhandle);
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}
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void ex_data_clear_free(void *data) {
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char* keyhandle = reinterpret_cast<char*>(data);
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memset(data, '\0', strlen(keyhandle));
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free(keyhandle);
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}
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