/* /usr/src/mach/utils/rrdl.c
Purpose:	Read a 512 byte disk label
Invocation:	./rddl < /dev/rsd0c
Author:		unknown.
Hacked by:	jhs@ 10-92
Tested On:	pc532 scsi
*/

#include <stdio.h>
#include <fcntl.h>
#include <sys/types.h>
#include "../dl.h"

unsigned char sector[512];
char *names[] = { "Root", "Alternate Root", "Whole Disc", "Usr", "Usr1", 
		"Disc Label", "First Kernel", "Second Kernel" } ;

main()
{
	struct disklabel *dl;
	int	minor;
	char	**name_p ;

	if (read (0, sector, 512) != 512) {
		fprintf (stderr,"couldn't read all bytes\n");
		exit (1);
	}
	dl = (struct disklabel *)&sector [LABELOFFSET];
	if (dl->d_magic !=DISKMAGIC) {
		fprintf(stderr,"bad magic 0x%x should be 0x%x\n",
			dl->d_magic, DISKMAGIC );
		exit (1);
	}
	printf("d_type:\t%d\t( DTYPE_SCSI is %d )\n", dl->d_type, DTYPE_SCSI);
	printf("d_typename:\t%s\n",		dl->d_typename);
	printf("d_secsize:\t%d\n",		dl->d_secsize );
	printf("d_npartitions:\t%d\n",		dl->d_npartitions );
	printf("d_nsectors:\t%d\n",		dl->d_nsectors );
	printf("d_ntracks:\t%d\n",		dl->d_ntracks );
	printf("d_ncylinders:\t%d\n",		dl->d_ncylinders );
	printf("d_secpercyl:\t%d\n",		dl->d_secpercyl );
	printf("d_secperunit:\t%d\n",		dl->d_secperunit );
	printf("d_sparespertrack:\t%d\n",	dl->d_sparespertrack );
	printf("d_sparespercyl:\t%d\n",		dl->d_sparespercyl );
	printf("d_acylinders:\t%d\n",		dl->d_acylinders );
	printf("d_rpm:\t\t%d\n",		dl->d_rpm );
	printf("d_interleave:\t%d\n",		dl->d_interleave );
	printf("d_trackskew:\t%d\n",		dl->d_trackskew );
	printf("d_cylskew:\t%d\n",		dl->d_cylskew );
	printf("d_headswitch:\t%d\n",		dl->d_headswitch );
	printf("d_trkseek:\t%d\n",		dl->d_trkseek );
	printf("d_npartitions:\t%d\n",		dl->d_npartitions);

	for (minor = 0, name_p = names ; minor < dl->d_npartitions; minor++)
		printf("[%d=%c]:  size %7d,  offset %7d,  %s\n",
			minor, 'a'+minor,
			dl->d_partitions[minor].p_size,
			dl->d_partitions[minor].p_offset,
			*name_p++);
}