auto import from //depot/cupcake/@135843
diff --git a/include/utils/misc.h b/include/utils/misc.h
new file mode 100644
index 0000000..62e84b4
--- /dev/null
+++ b/include/utils/misc.h
@@ -0,0 +1,93 @@
+/*
+ * Copyright (C) 2005 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.
+ */
+
+//
+// Handy utility functions and portability code.
+//
+#ifndef _LIBS_UTILS_MISC_H
+#define _LIBS_UTILS_MISC_H
+
+#include <sys/time.h>
+#include "utils/Endian.h"
+
+namespace android {
+
+/* get #of elements in a static array */
+#ifndef NELEM
+# define NELEM(x) ((int) (sizeof(x) / sizeof((x)[0])))
+#endif
+
+/*
+ * Make a copy of the string, using "new[]" instead of "malloc". Free the
+ * string with delete[].
+ *
+ * Returns NULL if "str" is NULL.
+ */
+char* strdupNew(const char* str);
+
+/*
+ * Concatenate an argument vector into a single string. If argc is >= 0
+ * it will be used; if it's < 0 then the last element in the arg vector
+ * must be NULL.
+ *
+ * This inserts a space between each argument.
+ *
+ * This does not automatically add double quotes around arguments with
+ * spaces in them. This practice is necessary for Win32, because Win32's
+ * CreateProcess call is stupid.
+ *
+ * The caller should delete[] the returned string.
+ */
+char* concatArgv(int argc, const char* const argv[]);
+
+/*
+ * Count up the number of arguments in "argv". The count does not include
+ * the final NULL entry.
+ */
+int countArgv(const char* const argv[]);
+
+/*
+ * Some utility functions for working with files. These could be made
+ * part of a "File" class.
+ */
+typedef enum FileType {
+ kFileTypeUnknown = 0,
+ kFileTypeNonexistent, // i.e. ENOENT
+ kFileTypeRegular,
+ kFileTypeDirectory,
+ kFileTypeCharDev,
+ kFileTypeBlockDev,
+ kFileTypeFifo,
+ kFileTypeSymlink,
+ kFileTypeSocket,
+} FileType;
+/* get the file's type; follows symlinks */
+FileType getFileType(const char* fileName);
+/* get the file's modification date; returns -1 w/errno set on failure */
+time_t getFileModDate(const char* fileName);
+
+/*
+ * Round up to the nearest power of 2. Handy for hash tables.
+ */
+unsigned int roundUpPower2(unsigned int val);
+
+void strreverse(char* begin, char* end);
+void k_itoa(int value, char* str, int base);
+char* itoa(int val, int base);
+
+}; // namespace android
+
+#endif // _LIBS_UTILS_MISC_H