-void cmd_open (char *cmdbuf);
-void cmd_oimg (char *cmdbuf);
-void cmd_uopn (char *cmdbuf);
-void cmd_uimg (char *cmdbuf);
-void cmd_clos (void);
-void abort_upl (struct CitContext *who);
-void cmd_ucls (char *cmd);
-void cmd_read (char *cmdbuf);
-void cmd_writ (char *cmdbuf);
-void cmd_ndop (char *cmdbuf);
-void cmd_nuop (char *cmdbuf);
-int network_talking_to(char *nodename, int operation);
+void abort_upl (CitContext *who);
+
+int network_talking_to(const char *nodename, long len, int operation);