/* $OpenBSD: cons.c,v 1.6 1997/08/04 20:31:21 mickey Exp $ */ /* * Copyright (c) 1996 Michael Shalayeff * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Michael Shalayeff. * 4. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * */ #include #include #include "stand.h" static const struct consw *console = &consw[0]; int consdev; int cons_probe() { int i, f = 0; consdev = CN_NORMAL; for (i = 0; i < ncons; i++) { if ((consw[i].cn_probe)() != 0) { if (f == 0) f++, console = &consw[i]; printf("%s present\n", consw[i].name); } } if (!f) /* not found */ printf("no any console detected, "); printf("using %s console\n", console->name); return 1; } char * ttyname(fd) int fd; { if (fd) return "(not a tty)"; else return console->name; } void putc(c) int c; { (*console->cn_putc)(c); } int getc() { return (*console->cn_getc)(); } int ischar() { return (*console->cn_ischar)(); }