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Lines Matching defs:disk_buf

310 	} disk_buf, bootstrap;
334 	rv = pread(params->fsfd, &disk_buf, sizeof (disk_buf), 0);
335 	if (rv != sizeof(disk_buf)) {
341 			    (long)sizeof(disk_buf));
345 	if (disk_buf.mbr.mbr_magic != le16toh(MBR_MAGIC)) {
351 		memset(&disk_buf, 0, 512);
392 		memcpy(bootstrap.b + 512-2-64, disk_buf.b + 512-2-64, 64);
393 		memcpy(bootstrap.b + 512, disk_buf.b + 512, 512);
439 		if (disk_buf.b[0] == 0xeb && disk_buf.b[1] >= 9 &&
440 		    disk_buf.b[2] == 0x90 &&
441 		    !is_zero(disk_buf.b + 3 + 8, disk_buf.b[1] - 1 - 8)) {
442 			struct mbr_bpbFAT16 *bpb = (void *)(disk_buf.b + 3 + 8);
452 			if (disk_buf.b[1] > bootstrap.b[1]) {
454 				if (!is_zero(disk_buf.b + 2 + bootstrap.b[1],
455 				    disk_buf.b[1] - bootstrap.b[1])) {
462 				u = disk_buf.b[1];
467 			memcpy(bootstrap.b + 2, disk_buf.b + 2, u);
486 	memcpy(&disk_buf, &bootstrap, 512);
488 		memcpy(disk_buf.b + 2 * 512, bootstrap.b + 2 * 512,
491 		memset(disk_buf.b + params->s1stat.st_size, 0,
495 	return write_boot_area(params, disk_buf.b, sizeof disk_buf.b);