Initial Contribution
diff --git a/include/utils/Buffer.h b/include/utils/Buffer.h
new file mode 100644
index 0000000..8e22b0f
--- /dev/null
+++ b/include/utils/Buffer.h
@@ -0,0 +1,107 @@
+/*
+ * 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 __UTILS_BUFFER_H__
+#define __UTILS_BUFFER_H__ 1
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+namespace android {
+
+class Buffer
+{
+private:
+ char *buf;
+ int bufsiz;
+ int used;
+ void ensureCapacity(int len);
+
+ void
+ makeRoomFor(int len)
+ {
+ if (len + used >= bufsiz) {
+ bufsiz = (len + used) * 3/2 + 2;
+ char *blah = new char[bufsiz];
+
+ memcpy(blah, buf, used);
+ delete[] buf;
+ buf = blah;
+ }
+ }
+
+public:
+ Buffer()
+ {
+ bufsiz = 16;
+ buf = new char[bufsiz];
+ clear();
+ }
+
+ ~Buffer()
+ {
+ delete[] buf;
+ }
+
+ void
+ clear()
+ {
+ buf[0] = '\0';
+ used = 0;
+ }
+
+ int
+ length()
+ {
+ return used;
+ }
+
+ void
+ append(const char c)
+ {
+ makeRoomFor(1);
+ buf[used] = c;
+ used++;
+ buf[used] = '\0';
+ }
+
+ void
+ append(const char *s, int len)
+ {
+ makeRoomFor(len);
+
+ memcpy(buf + used, s, len);
+ used += len;
+ buf[used] = '\0';
+ }
+
+ void
+ append(const char *s)
+ {
+ append(s, strlen(s));
+ }
+
+ char *
+ getBytes()
+ {
+ return buf;
+ }
+};
+
+}; // namespace android
+
+#endif