freebsd-dev/usr.sbin/pcvt/demo/playvt.c
2001-03-01 06:22:46 +00:00

114 lines
3.0 KiB
C

/*
* Copyright (c) 1995 Hellmuth Michaelis
*
* 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 Hellmuth Michaelis
* 4. The name authors 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 AUTHOR 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.
*
*/
#ifndef lint
#if 0
static char *id =
"@(#)playvt.c, 1.00, Last Edit-Date: [Sun Jan 1 18:32:22 1995]";
#endif
static const char rcsid[] =
"$FreeBSD$";
#endif /* not lint */
/*---------------------------------------------------------------------------*
*
* history:
*
* -hm want to see my xmas greeting ... :-)
*
*---------------------------------------------------------------------------*/
#include <stdio.h>
#include <unistd.h>
main(argc,argv)
int argc;
char *argv[];
{
int c;
FILE *fp = stdin;
volatile int i;
int delay = 0;
int fflag = -1;
char *filename;
while( (c = getopt(argc, argv, "d:f:")) != -1)
{
switch(c)
{
case 'd':
delay = atoi(optarg);
break;
case 'f':
filename = optarg;
fflag = 1;
break;
case '?':
default:
usage();
break;
}
}
if(fflag == 1)
{
if((fp = fopen(filename, "r")) == NULL)
{
char buffer[80];
strcpy(buffer,"ERROR opening file ");
strcat(buffer,filename);
perror(buffer);
exit(1);
}
}
while((c = getc(fp)) != EOF)
{
putchar(c);
for(i = delay; i > 0; i--)
;
}
}
usage()
{
fprintf(stderr,"\nplayvt - play a VT animation with programmable delay\n");
fprintf(stderr,"usage: playvt -f [filename] -d [delay]\n");
fprintf(stderr," -f <filename> file containing the animation\n");
fprintf(stderr," -d <delay> delay between characters\n");
exit(1);
}