Verify wipe package when wiping A/B device in recovery.

To increase the security of wiping A/B devices, let uncrypt write
wipe package in misc partition. Then recovery verifies the wipe
package before wiping the device.

Based on the original cherrypick, this CL also has additional changes to
address the LOG statements and libziparchive changes.

Bug: 29159185
Test: Build and boot into recovery.

Change-Id: I186691bab1928d3dc036bc5542abd64a81bc2168
(cherry picked from commit 6faf0265c9)

uncrypt/uncrypt.cpp

@@ -528,14 +528,31 @@ static bool setup_bcb(const int socket) {
         return false;
     }
     LOG(INFO) << "  received command: [" << content << "] (" << content.size() << ")";
+    std::vector<std::string> options = android::base::Split(content, "\n");
+    std::string wipe_package;
+    for (auto& option : options) {
+        if (android::base::StartsWith(option, "--wipe_package=")) {
+            std::string path = option.substr(strlen("--wipe_package="));
+            if (!android::base::ReadFileToString(path, &wipe_package)) {
+                PLOG(ERROR) << "failed to read " << path;
+                return false;
+            }
+            option = android::base::StringPrintf("--wipe_package_size=%zu", wipe_package.size());
+        }
+    }
 
     // c8. setup the bcb command
     std::string err;
-    if (!write_bootloader_message({content}, &err)) {
+    if (!write_bootloader_message(options, &err)) {
         LOG(ERROR) << "failed to set bootloader message: " << err;
         write_status_to_socket(-1, socket);
         return false;
     }
+    if (!wipe_package.empty() && !write_wipe_package(wipe_package, &err)) {
+        PLOG(ERROR) << "failed to set wipe package: " << err;
+        write_status_to_socket(-1, socket);
+        return false;
+    }
     // c10. send "100" status
     write_status_to_socket(100, socket);
     return true;