diff options
Diffstat (limited to 'applypatch/include/applypatch')
-rw-r--r-- | applypatch/include/applypatch/applypatch.h | 85 | ||||
-rw-r--r-- | applypatch/include/applypatch/imgdiff.h | 39 | ||||
-rw-r--r-- | applypatch/include/applypatch/imgpatch.h | 10 |
3 files changed, 130 insertions, 4 deletions
diff --git a/applypatch/include/applypatch/applypatch.h b/applypatch/include/applypatch/applypatch.h new file mode 100644 index 000000000..4489decb6 --- /dev/null +++ b/applypatch/include/applypatch/applypatch.h @@ -0,0 +1,85 @@ +/* + * 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 <memory> +#include <string> +#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.cpp +int ShowLicenses(); +size_t FreeSpaceForFile(const char* filename); +int CacheSizeCheck(size_t bytes); +int ParseSha1(const char* str, uint8_t* digest); + +int applypatch(const char* source_filename, + const char* target_filename, + const char* target_sha1_str, + size_t target_size, + const std::vector<std::string>& patch_sha1_str, + const std::vector<std::unique_ptr<Value>>& patch_data, + const Value* bonus_data); +int applypatch_check(const char* filename, + const std::vector<std::string>& patch_sha1_str); +int applypatch_flash(const char* source_filename, const char* target_filename, + const char* target_sha1_str, size_t target_size); + +int LoadFileContents(const char* filename, FileContents* file); +int SaveFileContents(const char* filename, const FileContents* file); + +// bspatch.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 diff --git a/applypatch/include/applypatch/imgdiff.h b/applypatch/include/applypatch/imgdiff.h new file mode 100644 index 000000000..22cbd4fa0 --- /dev/null +++ b/applypatch/include/applypatch/imgdiff.h @@ -0,0 +1,39 @@ +/* + * Copyright (C) 2009 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_IMGDIFF_H +#define _APPLYPATCH_IMGDIFF_H + +#include <stddef.h> + +// Image patch chunk types +#define CHUNK_NORMAL 0 +#define CHUNK_GZIP 1 // version 1 only +#define CHUNK_DEFLATE 2 // version 2 only +#define CHUNK_RAW 3 // version 2 only + +// The gzip header size is actually variable, but we currently don't +// support gzipped data with any of the optional fields, so for now it +// will always be ten bytes. See RFC 1952 for the definition of the +// gzip format. +static constexpr size_t GZIP_HEADER_LEN = 10; + +// The gzip footer size really is fixed. +static constexpr size_t GZIP_FOOTER_LEN = 8; + +int imgdiff(int argc, const char** argv); + +#endif // _APPLYPATCH_IMGDIFF_H diff --git a/applypatch/include/applypatch/imgpatch.h b/applypatch/include/applypatch/imgpatch.h index 64d9aa9eb..6549f79f0 100644 --- a/applypatch/include/applypatch/imgpatch.h +++ b/applypatch/include/applypatch/imgpatch.h @@ -14,13 +14,15 @@ * limitations under the License. */ -#ifndef _IMGPATCH_H -#define _IMGPATCH_H +#ifndef _APPLYPATCH_IMGPATCH_H +#define _APPLYPATCH_IMGPATCH_H -typedef ssize_t (*SinkFn)(const unsigned char*, ssize_t, void*); +#include <sys/types.h> + +using SinkFn = ssize_t (*)(const unsigned char*, ssize_t, void*); int ApplyImagePatch(const unsigned char* old_data, ssize_t old_size, const unsigned char* patch_data, ssize_t patch_size, SinkFn sink, void* token); -#endif //_IMGPATCH_H +#endif // _APPLYPATCH_IMGPATCH_H |