applypatch: Change the ssize_t length parameters to size_t.
Mostly for applypatch family APIs like ApplyBSDiffPatch() and
ApplyImagePatch(). Changing to size_t doesn't indicate they would
necessarily work with very large size_t (e.g. > ssize_t), just
similar to write(2). But otherwise accepting negative length doesn't
make much sense.
Also change the return type of SinkFn from ssize_t to size_t. Callers
tell a successful sink by comparing the number of written bytes against
the desired value. Negative return values like -1 are not needed. This
also makes it consistent with bsdiff::bspatch interface.
Test: recovery_component_test
Test: Apply an incremental with the new updater.
Change-Id: I7ff1615203a5c9854134f75d019e266f4ea6e714
diff --git a/applypatch/bspatch.cpp b/applypatch/bspatch.cpp
index 9920c2b..8ef7a06 100644
--- a/applypatch/bspatch.cpp
+++ b/applypatch/bspatch.cpp
@@ -60,8 +60,8 @@
);
}
-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 ApplyBSDiffPatch(const unsigned char* old_data, size_t old_size, const Value* patch,
+ size_t patch_offset, SinkFn sink, void* token, SHA_CTX* ctx) {
auto sha_sink = [&](const uint8_t* data, size_t len) {
len = sink(data, len, token);
if (ctx) SHA1_Update(ctx, data, len);
@@ -72,8 +72,8 @@
patch->data.size(), sha_sink);
}
-int ApplyBSDiffPatchMem(const unsigned char* old_data, ssize_t old_size, const Value* patch,
- ssize_t patch_offset, std::vector<unsigned char>* new_data) {
+int ApplyBSDiffPatchMem(const unsigned char* old_data, size_t old_size, const Value* patch,
+ size_t patch_offset, std::vector<unsigned char>* new_data) {
auto vector_sink = [new_data](const uint8_t* data, size_t len) {
new_data->insert(new_data->end(), data, data + len);
return len;