c0e1c46a70
Test: mmma bootable/recovery system/update_engine Test: recovery_component_test Change-Id: I93c2caa87bf94a53509bb37f98f2c02bcadb6f5c
84 lines
3.8 KiB
C++
84 lines
3.8 KiB
C++
/*
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* Copyright (C) 2008 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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// This file is a nearly line-for-line copy of bspatch.c from the
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// bsdiff-4.3 distribution; the primary differences being how the
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// input and output data are read and the error handling. Running
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// applypatch with the -l option will display the bsdiff license
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// notice.
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#include <stdio.h>
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#include <sys/types.h>
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#include <bspatch.h>
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#include <openssl/sha.h>
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#include "applypatch/applypatch.h"
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void ShowBSDiffLicense() {
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puts("The bsdiff library used herein is:\n"
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"\n"
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"Copyright 2003-2005 Colin Percival\n"
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"All rights reserved\n"
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"\n"
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"Redistribution and use in source and binary forms, with or without\n"
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"modification, are permitted providing that the following conditions\n"
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"are met:\n"
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"1. Redistributions of source code must retain the above copyright\n"
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" notice, this list of conditions and the following disclaimer.\n"
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"2. Redistributions in binary form must reproduce the above copyright\n"
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" notice, this list of conditions and the following disclaimer in the\n"
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" documentation and/or other materials provided with the distribution.\n"
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"\n"
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"THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR\n"
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"IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n"
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"WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE\n"
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"ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY\n"
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"DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL\n"
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"DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS\n"
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"OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)\n"
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"HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,\n"
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"STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING\n"
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"IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n"
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"POSSIBILITY OF SUCH DAMAGE.\n"
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"\n------------------\n\n"
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"This program uses Julian R Seward's \"libbzip2\" library, available\n"
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"from http://www.bzip.org/.\n"
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);
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}
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int ApplyBSDiffPatch(const unsigned char* old_data, size_t old_size, const Value* patch,
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size_t patch_offset, SinkFn sink, SHA_CTX* ctx) {
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auto sha_sink = [&sink, &ctx](const uint8_t* data, size_t len) {
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len = sink(data, len);
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if (ctx) SHA1_Update(ctx, data, len);
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return len;
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};
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return bsdiff::bspatch(old_data, old_size,
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reinterpret_cast<const uint8_t*>(&patch->data[patch_offset]),
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patch->data.size(), sha_sink);
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}
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int ApplyBSDiffPatchMem(const unsigned char* old_data, size_t old_size, const Value* patch,
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size_t patch_offset, std::vector<unsigned char>* new_data) {
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auto vector_sink = [new_data](const uint8_t* data, size_t len) {
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new_data->insert(new_data->end(), data, data + len);
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return len;
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};
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return bsdiff::bspatch(old_data, old_size,
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reinterpret_cast<const uint8_t*>(&patch->data[patch_offset]),
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patch->data.size(), vector_sink);
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}
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