rc4.h: add doxygen file comment

diff --git a/rc4.h b/rc4.h
index c290b48c81d3ed892f07c4eb7a896bf1275d057c..9ddd8224ffdcc565f74296192948ec0df5af87dd 100644 (file)
--- a/rc4.h
+++ b/rc4.h
@@ -1 +1,4 @@
+/** \file rc4.h common symbols of command.c and client_common.c */
+
+/** number of bytes of the rc4 session key */
 #define RC4_KEY_LEN 16