/* Note that unlike the "iget" stuff, this does NOT use ioctls.
 * This reads directly from the ***DISK DRIVE**
 */


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

#include <sys/dktp/fdisk.h>
#include <errno.h>


extern void numtoOS(int ostype, char *buffer);

int main(int argc, char *argv[]){
	int fd;
	
	int fpart;
	char namebuff[25];
	char buffer[1024];
	struct ipart parts[10];
	struct mboot *mbootptr,mboot;
	

	if(argc<2){
		puts("Need name of file or device!");
		exit(1);
	}
	fd=open(argv[1],O_RDONLY);
	if(fd <0){
		perror("cannot open file");
		exit(errno);
	}
	if(read(fd,buffer,512) !=512){
		perror("err reading initial sector");
		exit(errno);
	}
	close(fd);

	printf("Fdisk information for device %s\n",argv[1]);
	memcpy(&mboot,buffer,sizeof(struct mboot));
	mbootptr=&mboot;

	if(mbootptr->signature!= MBB_MAGIC){
		fprintf(stderr,"FDISK table NOT VALID\n");
		fprintf(stderr,"Reminder: dont forget to use either 'p0' or 'D0' device\n");
		
		exit(1);
	}


	/*   See "NOTES.fdisk" */



	memcpy(parts, mbootptr->parts, sizeof(struct ipart)*FD_NUMPART);
	puts("#  start block  end block   startCylSecHd endCylSecHd   OSType");
	
	for(fpart=0;fpart<FD_NUMPART;fpart++){
		int altnumsec;
		numtoOS(parts[fpart].systid,namebuff);
		printf("%d: %.10d	%.10d",
		       fpart+1,
		       parts[fpart].relsect,
		       parts[fpart].numsect);

		printf("    %2x/%2x/%2x",
		       parts[fpart].begcyl,
		       parts[fpart].begsect,
		       parts[fpart].beghead);
		printf("    %2x/%2x/%2x",
		       parts[fpart].endcyl,
		       parts[fpart].endsect,
		       parts[fpart].endhead);

		printf("      %s",  namebuff);
		puts("");
	}
	return 0;
}