diff options
Diffstat (limited to 'applypatch/include')
-rw-r--r-- | applypatch/include/applypatch/applypatch.h | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/applypatch/include/applypatch/applypatch.h b/applypatch/include/applypatch/applypatch.h new file mode 100644 index 000000000..9ee39d293 --- /dev/null +++ b/applypatch/include/applypatch/applypatch.h @@ -0,0 +1,87 @@ +/* + * Copyright (C) 2008 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef _APPLYPATCH_H +#define _APPLYPATCH_H + +#include <stdint.h> +#include <sys/stat.h> + +#include <vector> + +#include "openssl/sha.h" +#include "edify/expr.h" + +struct FileContents { + uint8_t sha1[SHA_DIGEST_LENGTH]; + std::vector<unsigned char> data; + struct stat st; +}; + +// When there isn't enough room on the target filesystem to hold the +// patched version of the file, we copy the original here and delete +// it to free up space. If the expected source file doesn't exist, or +// is corrupted, we look to see if this file contains the bits we want +// and use it as the source instead. +#define CACHE_TEMP_SOURCE "/cache/saved.file" + +typedef ssize_t (*SinkFn)(const unsigned char*, ssize_t, void*); + +// applypatch.c +int ShowLicenses(); +size_t FreeSpaceForFile(const char* filename); +int CacheSizeCheck(size_t bytes); +int ParseSha1(const char* str, uint8_t* digest); + +int applypatch_flash(const char* source_filename, const char* target_filename, + const char* target_sha1_str, size_t target_size); +int applypatch(const char* source_filename, + const char* target_filename, + const char* target_sha1_str, + size_t target_size, + int num_patches, + char** const patch_sha1_str, + Value** patch_data, + Value* bonus_data); +int applypatch_check(const char* filename, + int num_patches, + char** const patch_sha1_str); + +int LoadFileContents(const char* filename, FileContents* file); +int SaveFileContents(const char* filename, const FileContents* file); +void FreeFileContents(FileContents* file); +int FindMatchingPatch(uint8_t* sha1, char* const * const patch_sha1_str, + int num_patches); + +// bsdiff.cpp +void ShowBSDiffLicense(); +int ApplyBSDiffPatch(const unsigned char* old_data, ssize_t old_size, + const Value* patch, ssize_t patch_offset, + SinkFn sink, void* token, SHA_CTX* ctx); +int ApplyBSDiffPatchMem(const unsigned char* old_data, ssize_t old_size, + const Value* patch, ssize_t patch_offset, + std::vector<unsigned char>* new_data); + +// imgpatch.cpp +int ApplyImagePatch(const unsigned char* old_data, ssize_t old_size, + const Value* patch, + SinkFn sink, void* token, SHA_CTX* ctx, + const Value* bonus_data); + +// freecache.cpp +int MakeFreeSpaceOnCache(size_t bytes_needed); + +#endif |