119     int boot0_size, mbr_size;  in main()  local
196     mbr_size = read_mbr(disk, &mbr, !B_flag);  in main()
200 	write_mbr(fpath, O_CREAT | O_TRUNC, mbr, mbr_size, 0);  in main()
216 	boot0_size = mbr_size;  in main()
310     int mbr_size, fd;  in read_mbr()  local
327 	mbr_size = 1024;  in read_mbr()
328 	if ((*mbr = malloc(mbr_size)) == NULL)  in read_mbr()
331 	    (n = read(fd, *mbr, mbr_size)) == -1)  in read_mbr()
333 	if (n != mbr_size)  in read_mbr()
336 	return (mbr_size);  in read_mbr()
372 write_mbr(const char *fname, int flags, u_int8_t *mbr, int mbr_size,  in write_mbr()  argument
383 		n = write(fd, mbr, mbr_size);  in write_mbr()
385 		if (n != mbr_size)  in write_mbr()
416 		gctl_ro_param(grq, "bootcode", mbr_size, mbr);  in write_mbr()