/* $OpenBSD: pccon.c,v 1.1 1997/03/03 11:59:12 downsj Exp $ */ /* * Copyright (c) 1997, Jason Downs. 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. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``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 AUTHOR(S) 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 #include #include #include #include #include extern char *__progname; int main(argc, argv) int argc; char *argv[]; { int ch, fd, blank; char *ep, *dev = _PATH_CONSOLE; blank = -1; while ((ch = getopt(argc, argv, "b:f:")) != -1) { switch (ch) { case 'b': blank = strtol(optarg, &ep, 10); if (ep == optarg) errx (1, "numeric argument expected"); if (blank < 0) errx (1, "illegal blank value"); break; case 'f': dev = optarg; break; default: fprintf (stderr, "usage: %s [-f device] [-b interval]\n", __progname); exit (1); } } fd = open (dev, O_RDWR); if (fd < 0) err (1, dev); if (blank >= 0) { if (ioctl(fd, CONSOLE_SET_BLANK, &blank) < 0) err (1, "ioctl"); } close (fd); exit (0); }