--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ftp/ftp.x	Mon Jan 18 14:10:13 2010 +0530
@@ -0,0 +1,89 @@
+/*
+ * ftp.x: FTP Protocol specification for remote file fetching
+ */
+
+const MAXLEN = 1024;
+
+/*
+ * Type for storing path
+ */
+typedef string filename<MAXLEN>;
+
+/*
+ * Structure for sending request. Expects the path of the file
+ * and the byte number at which to start reading the file from
+ */
+struct request {
+	filename name;
+    int start;
+};
+
+/*
+ * Type that represents the structute for request
+ */
+typedef struct request request;
+
+/*
+ * Type for storing a chunk of the file that is being
+ * sent from the server to the client in the current
+ * remote procedure call
+ */
+typedef int filechunk<MAXLEN>;
+
+/*
+ * Response sent by the server to the client as a response
+ * to remote procedure call, containing the filechunk for
+ * the current call and number of bytes actually read
+ */
+struct chunkreceive {
+	filechunk data;
+	int bytes;
+};
+
+/*
+ * Type that represents the structure for file's chunks
+ * to be received from the server
+ */
+typedef struct chunkreceive chunkreceive;
+
+/*
+ * File data sent by the server from client to store
+ * it on the server along with the filename and the
+ * number of bytes in the data
+ */
+struct chunksend {
+	filename name;
+    filechunk data;
+	int bytes;
+};
+
+/*
+ * Type that represents the structure for file's chunks
+ * to be sent to the server 
+ */
+typedef struct chunksend chunksend;
+
+/*
+ * union for returning from remote procedure call, returns
+ * the proper chunkdata response if everything worked fine
+ * or will return the error number if an error occured
+ */
+union readfile_res switch (int errno) {
+	case 0:
+	    chunkreceive chunk;
+	default:
+	    void;
+};
+
+/*
+ * Remote procedure defined in the Interface Definition Language
+ * of SUN RPC, contains PROGRAM and VERSION name definitions and
+ * the remote procedure signature
+ */
+program FTPPROG {
+	version FTPVER {
+		readfile_res retrieve_file(request *) = 1;
+		int send_file(chunksend *) = 2;
+	} = 1;
+} = 0x20000011;
+