add bonus data feature to imgdiff/imgpatch/applypatch
The bonus data option lets you give an additional blob of uncompressed
data to be used when constructing a patch for chunk #1 of an image.
The same blob must be available at patch time, and can be passed to
the command-line applypatch tool (this feature is not accessible from
edify scripts).
This will be used to reduce the size of recovery-from-boot patches by
storing parts of the recovery ramdisk (the UI images) on the system
partition.
Change-Id: Iac1959cdf7f5e4582f8d434e83456e483b64c02c
diff --git a/applypatch/applypatch.h b/applypatch/applypatch.h
index fb58843..d1a0232 100644
--- a/applypatch/applypatch.h
+++ b/applypatch/applypatch.h
@@ -55,7 +55,8 @@
size_t target_size,
int num_patches,
char** const patch_sha1_str,
- Value** patch_data);
+ Value** patch_data,
+ Value* bonus_data);
int applypatch_check(const char* filename,
int num_patches,
char** const patch_sha1_str);
@@ -79,7 +80,8 @@
// imgpatch.c
int ApplyImagePatch(const unsigned char* old_data, ssize_t old_size,
const Value* patch,
- SinkFn sink, void* token, SHA_CTX* ctx);
+ SinkFn sink, void* token, SHA_CTX* ctx,
+ const Value* bonus_data);
// freecache.c
int MakeFreeSpaceOnCache(size_t bytes_needed);