/* * framebuffer tool, inspired from fbi ((c) 1998,99 Gerd Knorr <kraxel@goldbach.in-berlin.de>) * * (c) 2002 Florent Villard (warly@mandrakesoft.com) * */#include <stdio.h>#include <stdlib.h>#include <string.h>#include <fcntl.h>#include <errno.h>#include <getopt.h>#include <sys/ioctl.h>#include <linux/fb.h>#define VERSION "0.1.1"int fd;static int fb;struct fb_var_screeninfo fb_var;struct option fbresol_options[] = {	{"version", no_argument, NULL, 'v'},	/* version */	{"help", no_argument, NULL, 'h'},	/* help */	{0, 0, 0, 0}};void version(void){	fprintf(stderr, "fbresolution version " VERSION		" (c) 2002 Florent Villard <warly@mandrakesoft.com>; compiled on %s.\n",		__DATE__);}void usage(char *name){	char *h;	h = strrchr(name, '/');	fprintf(stderr,		"\n"		"This program output the current framebuffer resolution.\n"		"\n"		"  Usage: %s [ options ]\n"		"\n"		"    --help       [-h]      Print this text\n"		"    --version    [-v]      Show the %s version number\n"		"\n" "\n", h ? h + 1 : name, h ? h + 1 : name);}int main(int argc, char *argv[]){	int opt_index = 0;	int c;	for (;;) {		c = getopt_long(argc, argv, "vhnd:t:", fbresol_options,				&opt_index);		if (c == -1)			break;		switch (c) {		case 'v':			version();			exit(1);			break;		default:		case 'h':			usage(argv[0]);			exit(1);		}	}	if (optind > argc) {		usage(argv[0]);		exit(1);	}	if (-1 == (fb = open("/dev/fb0", O_RDWR /* O_WRONLY */ ))) {		fprintf(stderr, "open /dev/fb0: %s\n", strerror(errno));		exit(1);	}	if (-1 == ioctl(fb, FBIOGET_VSCREENINFO, &fb_var)) {		perror("ioctl FBIOGET_VSCREENINFO");		exit(1);	}	printf("%dx%d\n", fb_var.xres, fb_var.yres);	return 0;}