when multiple password prompts are sent, utilize a counter to differentiate them

src/sec-mod.h

@@ -75,6 +75,7 @@ typedef struct client_entry_st {
 
 	char *msg_str;
 	char *prompt_str;
+	unsigned passwd_counter; /* if prompt_str is for a password this indicates the passwrd number (0,1,2) */
 
 	stats_st saved_stats; /* saved from previous cookie usage */
 	stats_st stats; /* current */