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authorTao Bao <tbao@google.com>2016-03-03 20:43:47 +0100
committerTao Bao <tbao@google.com>2016-03-03 23:52:44 +0100
commitd80a99883d5ae2b117c54f076fe1df7eae86d2f8 (patch)
tree14a10ad17192f2a7ead609af81d2445d80ed117f /applypatch/include
parentMerge "Remove dumpkey build guards after completing code move." (diff)
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Diffstat (limited to 'applypatch/include')
-rw-r--r--applypatch/include/applypatch/applypatch.h87
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