/* mdprint --- for each block, print the 1st long int to stdout */# include <sys/types.h># include <sys/stat.h># include <fcntl.h># include <stdio.h># include <stdlib.h># include <errno.h># include <string.h># define BLOCK_SIZE		(1024)# define LONGS_PER_BLOCK	(BLOCK_SIZE / sizeof (long))# define NBLOCKS		(160384)char *progname = "mdread";main (int argc, char **argv){	long buf[LONGS_PER_BLOCK];	long i;	int fd;	char *devname;	if (argc != 2) {		fprintf (stderr, "Usage: %s <device>\n", progname);		exit (1);	}	devname = argv[1];	fd = open (devname, O_RDONLY);	if (fd < 0) {		fprintf (stderr, "%s: can't open %s (%s)\n", progname,		    devname, strerror (errno));		exit (2);	}	for (i = 0; i < NBLOCKS; i++) {		if (read (fd, (char *) buf, sizeof (buf)) < 0) {			fprintf (stderr, "%s: read failed (%s)\n", progname,			    strerror (errno));			abort ();		}		printf ("block %4ld: %ld\n", i, *buf);	}	close (fd);	exit (0);}