Hook up the backup data writer, and add a utility to read the backup data files.

3 files changed, 327 insertions, 0 deletions

diff --git a/cmds/backup/Android.mk b/cmds/backup/Android.mk
new file mode 100644
index 0000000..a37a80e
--- /dev/null
+++ b/cmds/backup/Android.mk
@@ -0,0 +1,15 @@
+# Copyright 2009 The Android Open Source Project
+
+LOCAL_PATH:= $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES:= backup.cpp
+
+LOCAL_SHARED_LIBRARIES := libcutils libc libutils
+
+LOCAL_MODULE:= btool
+
+LOCAL_MODULE_PATH := $(TARGET_OUT_OPTIONAL_EXECUTABLES)
+LOCAL_MODULE_TAGS := debug
+
+include $(BUILD_EXECUTABLE)
diff --git a/cmds/backup/NOTICE b/cmds/backup/NOTICE
new file mode 100644
index 0000000..c5b1efa
--- /dev/null
+++ b/cmds/backup/NOTICE
@@ -0,0 +1,190 @@
+
+   Copyright (c) 2005-2008, The Android Open Source Project
+
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+   you may not use this file except in compliance with the License.
+
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+   See the License for the specific language governing permissions and
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+
+
+                                 Apache License
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+      Contribution(s) alone or by combination of their Contribution(s)
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+      institute patent litigation against any entity (including a
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+   4. Redistribution. You may reproduce and distribute copies of the
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diff --git a/cmds/backup/backup.cpp b/cmds/backup/backup.cpp
new file mode 100644
index 0000000..51ac943
--- /dev/null
+++ b/cmds/backup/backup.cpp
@@ -0,0 +1,122 @@
+
+#include <utils/backup_helpers.h>
+#include <utils/String8.h>
+
+#include <fcntl.h>
+#include <stdio.h>
+#include <string.h>
+
+using namespace android;
+
+#include <unistd.h>
+
+int
+usage(int argc, const char** argv)
+{
+    const char* p = argv[0];
+
+    fprintf(stderr, "%s: Backs up your data.\n"
+                    "\n"
+                    "usage: %s\n"
+                    "  Prints all of the data that can be backed up to stdout.\n"
+                    "\n"
+                    "usage: %s list FILE\n"
+                    "  Lists the backup entities in the file.\n"
+                    "\n"
+                    "usage: %s print NAME FILE\n"
+                    "  Prints the entity named NAME in FILE.\n",
+                    p, p, p, p);
+    return 1;
+}
+
+int
+perform_full_backup()
+{
+    printf("this would have written all of your data to stdout\n");
+    return 0;
+}
+
+int
+perform_list(const char* filename)
+{
+    int err;
+    int fd;
+
+    fd = open(filename, O_RDONLY);
+    if (fd == -1) {
+        fprintf(stderr, "Error opening: %s\n", filename);
+        return 1;
+    }
+
+    BackupDataReader reader(fd);
+    int type;
+
+    while (reader.ReadNextHeader(&type) == 0) {
+        switch (type) {
+            case BACKUP_HEADER_APP_V1:
+            {
+                String8 packageName;
+                int cookie;
+                err = reader.ReadAppHeader(&packageName, &cookie);
+                if (err == 0) {
+                    printf("App header: %s 0x%08x (%d)\n", packageName.string(), cookie, cookie);
+                } else {
+                    printf("Error reading app header\n");
+                }
+                break;
+            }
+            case BACKUP_HEADER_ENTITY_V1:
+            {
+                String8 key;
+                size_t dataSize;
+                err = reader.ReadEntityHeader(&key, &dataSize);
+                if (err == 0) {
+                    printf("   entity: %s (%d bytes)\n", key.string(), dataSize);
+                } else {
+                    printf("   Error reading entity header\n");
+                }
+                break;
+            }
+            case BACKUP_FOOTER_APP_V1:
+            {
+                int cookie;
+                err = reader.ReadAppFooter(&cookie);
+                if (err == 0) {
+                    printf("   App footer: 0x%08x (%d)\n", cookie, cookie);
+                } else {
+                    printf("   Error reading entity header\n");
+                }
+                break;
+            }
+            default:
+            {
+                printf("Unknown chunk type: 0x%08x\n", type);
+                break;
+            }
+        }
+    }
+
+    return 0;
+}
+
+int perform_print(const char* entityname, const char* filename)
+{
+    printf("perform_print(%s, %s);", entityname, filename);
+    return 0;
+}
+
+int
+main(int argc, const char** argv)
+{
+    if (argc <= 1) {
+        return perform_full_backup();
+    }
+    if (argc == 3 && 0 == strcmp(argv[1], "list")) {
+        return perform_list(argv[2]);
+    }
+    if (argc == 4 && 0 == strcmp(argv[1], "print")) {
+        return perform_print(argv[2], argv[3]);
+    }
+    return usage(argc, argv);
+}
+