+/**
+ * imagetool_get_filesize() - Utility function to obtain the size of a file
+ *
+ * This function prints a message if an error occurs, showing the error that
+ * was obtained.
+ *
+ * @params: mkimage parameters
+ * @fname: filename to check
+ * @return size of file, or -ve value on error
+ */
+int imagetool_get_filesize(struct image_tool_params *params, const char *fname);
+
+/**
+ * imagetool_get_source_date() - Get timestamp for build output.
+ *
+ * Gets a timestamp for embedding it in a build output. If set
+ * SOURCE_DATE_EPOCH is used. Else the given fallback value is returned. Prints
+ * an error message if SOURCE_DATE_EPOCH contains an invalid value and returns
+ * 0.
+ *
+ * @cmdname: command name
+ * @fallback: timestamp to use if SOURCE_DATE_EPOCH isn't set
+ * @return timestamp based on SOURCE_DATE_EPOCH
+ */
+time_t imagetool_get_source_date(
+ const char *cmdname,
+ time_t fallback);
+