usr.sbin/diskinfo/diskinfo.c

55 static void speeddisk(int fd, off_t mediasize, u_int sectorsize);
56 static void commandtime(int fd, off_t mediasize, u_int sectorsize);
64 	u_int	sectorsize, fwsectors, fwheads;
105 		error = ioctl(fd, DIOCGSECTORSIZE, &sectorsize);
125 			printf("\t%u", sectorsize);
127 			printf("\t%jd", (intmax_t)mediasize/sectorsize);
132 				    (fwsectors * fwheads * sectorsize));
140 			printf("\t%-12u\t# sectorsize\n", sectorsize);
144 			    (intmax_t)mediasize/sectorsize);
149 				    (fwsectors * fwheads * sectorsize));
160 			commandtime(fd, mediasize, sectorsize);
162 			speeddisk(fd, mediasize, sectorsize);
174 rdsect(int fd, off_t blockno, u_int sectorsize)
178 	if (lseek(fd, (off_t)blockno * sectorsize, SEEK_SET) == -1)
180 	error = read(fd, sector, sectorsize);
183 	if (error != (int)sectorsize)
238 speeddisk(int fd, off_t mediasize, u_int sectorsize)
243 	sectorcount = mediasize / sectorsize;
260 		rdsect(fd, b0, sectorsize);
262 		rdsect(fd, b1, sectorsize);
272 		rdsect(fd, b0, sectorsize);
274 		rdsect(fd, b1, sectorsize);
283 		rdsect(fd, b0, sectorsize);
285 		rdsect(fd, b1, sectorsize);
294 		rdsect(fd, b0, sectorsize);
303 		rdsect(fd, b0, sectorsize);
312 		rdsect(fd, b0, sectorsize);
321 		rdsect(fd, b0, sectorsize);
328 	rdsect(fd, 0, sectorsize);
336 	b0 = sectorcount / 2 - bulk * (1024*1024 / sectorsize) / 2 - 1;
337 	rdsect(fd, b0, sectorsize);
345 	b0 = sectorcount - bulk * (1024*1024 / sectorsize) - 1;
346 	rdsect(fd, b0, sectorsize);
358 commandtime(int fd, off_t mediasize, u_int sectorsize)
365 	rdsect(fd, 0, sectorsize);
376 	rdsect(fd, 0, sectorsize);
379 		rdsect(fd, 0, sectorsize);