Cmd_func
Cmd_func *comfun; /* function to carry out command */
Cmd_func qcmd;
Cmd_func rcmd;
Cmd_func dcmd;
Cmd_func xcmd;
Cmd_func pcmd;
Cmd_func mcmd;
Cmd_func tcmd;
setcom(Cmd_info *cmd_info, Cmd_func *fun)
static void setcom(Cmd_info *, Cmd_func);