1 /* $OpenBSD: fdformat.c,v 1.20 2015/04/18 18:28:38 deraadt Exp $ */ 2 3 /* 4 * Copyright (C) 1992-1994 by Joerg Wunsch, Dresden 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 19 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, 20 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 22 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 24 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 25 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 /* 30 * FreeBSD: 31 * format a floppy disk 32 * 33 * Added FD_GTYPE ioctl, verifying, proportional indicators. 34 * Serge Vakulenko, vak@zebub.msk.su 35 * Sat Dec 18 17:45:47 MSK 1993 36 * 37 * Final adaptation, change format/verify logic, add separate 38 * format gap/interleave values 39 * Andrew A. Chernov, ache@astral.msk.su 40 * Thu Jan 27 00:47:24 MSK 1994 41 */ 42 43 #include <stdio.h> 44 #include <stdlib.h> 45 #include <unistd.h> 46 #include <fcntl.h> 47 #include <string.h> 48 #include <limits.h> 49 #include <ctype.h> 50 #include <err.h> 51 #include <util.h> 52 53 #include <errno.h> 54 #include <sys/types.h> 55 #include <sys/ioctl.h> 56 #include <machine/ioctl_fd.h> 57 58 extern const char *__progname; 59 60 static void 61 format_track(int fd, int cyl, int secs, int head, int rate, int gaplen, 62 int secsize, int fill, int interleave) 63 { 64 struct fd_formb f; 65 int i,j; 66 int il[FD_MAX_NSEC + 1]; 67 68 memset(il,0,sizeof il); 69 for(j = 0, i = 1; i <= secs; i++) { 70 while(il[(j%secs)+1]) 71 j++; 72 il[(j%secs)+1] = i; 73 j += interleave; 74 } 75 76 f.format_version = FD_FORMAT_VERSION; 77 f.head = head; 78 f.cyl = cyl; 79 f.transfer_rate = rate; 80 81 f.fd_formb_secshift = secsize; 82 f.fd_formb_nsecs = secs; 83 f.fd_formb_gaplen = gaplen; 84 f.fd_formb_fillbyte = fill; 85 for(i = 0; i < secs; i++) { 86 f.fd_formb_cylno(i) = cyl; 87 f.fd_formb_headno(i) = head; 88 f.fd_formb_secno(i) = il[i+1]; 89 f.fd_formb_secsize(i) = secsize; 90 } 91 if (ioctl(fd, FD_FORM, (caddr_t)&f) < 0) 92 err(1, "FD_FORM"); 93 } 94 95 static int 96 verify_track(int fd, int track, int tracksize) 97 { 98 static char *buf = 0; 99 static int bufsz = 0; 100 int fdopts = -1, ofdopts, rv = 0; 101 102 if (ioctl(fd, FD_GOPTS, &fdopts) < 0) 103 warn("FD_GOPTS"); 104 else { 105 ofdopts = fdopts; 106 fdopts |= FDOPT_NORETRY; 107 (void)ioctl(fd, FD_SOPTS, &fdopts); 108 } 109 110 if (bufsz < tracksize) { 111 if (buf) 112 free (buf); 113 bufsz = tracksize; 114 buf = 0; 115 } 116 if (! buf) 117 buf = malloc(bufsz); 118 if (! buf) { 119 fprintf (stderr, "\nfdformat: out of memory\n"); 120 exit (2); 121 } 122 if (lseek (fd, (off_t) track*tracksize, SEEK_SET) < 0) 123 rv = -1; 124 /* try twice reading it, without using the normal retrier */ 125 else if (read (fd, buf, tracksize) != tracksize 126 && read (fd, buf, tracksize) != tracksize) 127 rv = -1; 128 if (fdopts != -1) 129 (void)ioctl(fd, FD_SOPTS, &ofdopts); 130 return (rv); 131 } 132 133 static void 134 usage(void) 135 { 136 printf("usage: %s [-nqv] [-c cyls] [-F fillbyte] [-g gap3len] ", 137 __progname); 138 printf("[-h heads]\n"); 139 printf("\t[-i intleave] [-r rate] [-S secshft] [-s secs]\n"); 140 printf("\t[-t steps_per_track] device_name\n"); 141 printf("Options:\n"); 142 printf("\t-n\tdon't verify floppy after formatting\n"); 143 printf("\t-q\tsuppress any normal output, don't ask for confirmation\n"); 144 printf("\t-v\tdon't format, verify only\n"); 145 printf("\tdevname\tthe full name of floppy device or in short form fd0, fd1\n"); 146 printf("Obscure options:\n"); 147 printf("\t-c #\tspecify number of cylinders, 40 or 80\n"); 148 printf("\t-F #\tspecify fill byte\n"); 149 printf("\t-g #\tspecify gap length\n"); 150 printf("\t-h #\tspecify number of floppy heads, 1 or 2\n"); 151 printf("\t-i #\tspecify interleave factor\n"); 152 printf("\t-r #\tspecify data rate, 250, 300 or 500 kbps\n"); 153 printf("\t-S #\tspecify sector size, 0=128, 1=256, 2=512 bytes\n"); 154 printf("\t-s #\tspecify number of sectors per track, 9, 10, 15 or 18\n"); 155 printf("\t-t #\tnumber of steps per track\n"); 156 exit(2); 157 } 158 159 static int 160 yes(void) 161 { 162 char reply[256], *p; 163 164 for (;;) { 165 fflush(stdout); 166 if (!fgets(reply, sizeof(reply), stdin)) 167 return (0); 168 for (p=reply; *p==' ' || *p=='\t'; ++p) 169 continue; 170 if (*p=='y' || *p=='Y') 171 return (1); 172 if (*p=='n' || *p=='N' || *p=='\n' || *p=='\r') 173 return (0); 174 printf("Answer `yes' or `no': "); 175 } 176 } 177 178 int 179 main(int argc, char *argv[]) 180 { 181 int cyls = -1, secs = -1, heads = -1, intleave = -1; 182 int rate = -1, gaplen = -1, secsize = -1, steps = -1; 183 int fill = 0xf6, quiet = 0, verify = 1, verify_only = 0; 184 int fd, c, track, error, tracks_per_dot, bytes_per_track, errs; 185 const char *errstr; 186 char *devname; 187 struct fd_type fdt; 188 189 while((c = getopt(argc, argv, "c:s:h:r:g:S:F:t:i:qvn")) != -1) 190 switch (c) { 191 case 'c': /* # of cyls */ 192 cyls = strtonum(optarg, 1, INT_MAX, &errstr); 193 if (errstr) 194 errx(1, "-c %s: %s", optarg, errstr); 195 break; 196 197 case 's': /* # of secs per track */ 198 secs = strtonum(optarg, 1, INT_MAX, &errstr); 199 if (errstr) 200 errx(1, "-s %s: %s", optarg, errstr); 201 break; 202 203 case 'h': /* # of heads */ 204 heads = strtonum(optarg, 1, INT_MAX, &errstr); 205 if (errstr) 206 errx(1, "-h %s: %s", optarg, errstr); 207 break; 208 209 case 'r': /* transfer rate, kilobyte/sec */ 210 rate = strtonum(optarg, 1, INT_MAX, &errstr); 211 if (errstr) 212 errx(1, "-r %s: %s", optarg, errstr); 213 break; 214 215 case 'g': /* length of GAP3 to format with */ 216 gaplen = strtonum(optarg, 1, INT_MAX, &errstr); 217 if (errstr) 218 errx(1, "-g %s: %s", optarg, errstr); 219 break; 220 221 case 'S': /* sector size shift factor (1 << S)*128 */ 222 secsize = strtonum(optarg, 0, INT_MAX, &errstr); 223 if (errstr) 224 errx(1, "-S %s: %s", optarg, errstr); 225 break; 226 227 case 'F': /* fill byte, C-like notation allowed */ 228 fill = (int)strtol(optarg, (char **)0, 0); 229 break; 230 231 case 't': /* steps per track */ 232 steps = strtonum(optarg, 1, INT_MAX, &errstr); 233 if (errstr) 234 errx(1, "-t %s: %s", optarg, errstr); 235 break; 236 237 case 'i': /* interleave factor */ 238 intleave = strtonum(optarg, 1, INT_MAX, &errstr); 239 if (errstr) 240 errx(1, "-i %s: %s", optarg, errstr); 241 break; 242 243 case 'q': 244 quiet = 1; 245 break; 246 247 case 'n': 248 verify = 0; 249 break; 250 251 case 'v': 252 verify = 1; 253 verify_only = 1; 254 break; 255 256 case '?': default: 257 usage(); 258 } 259 260 if (optind != argc - 1) 261 usage(); 262 263 if ((fd = opendev(argv[optind], O_RDWR, OPENDEV_PART, &devname)) < 0) 264 err(1, "%s", devname); 265 266 if (ioctl(fd, FD_GTYPE, &fdt) < 0) 267 errx(1, "not a floppy disk: %s", devname); 268 269 switch (rate) { 270 case -1: 271 break; 272 case 250: 273 fdt.rate = FDC_250KBPS; 274 break; 275 case 300: 276 fdt.rate = FDC_300KBPS; 277 break; 278 case 500: 279 fdt.rate = FDC_500KBPS; 280 break; 281 default: 282 errx(1, "invalid transfer rate: %d", rate); 283 } 284 285 if (cyls >= 0) 286 fdt.tracks = cyls; 287 if (secs >= 0) 288 fdt.sectrac = secs; 289 if (fdt.sectrac > FD_MAX_NSEC) 290 errx(1, "too many sectors per track, max value is %d", 291 FD_MAX_NSEC); 292 if (heads >= 0) 293 fdt.heads = heads; 294 if (gaplen >= 0) 295 fdt.gap2 = gaplen; 296 if (secsize >= 0) 297 fdt.secsize = secsize; 298 if (steps >= 0) 299 fdt.step = steps; 300 301 bytes_per_track = fdt.sectrac * (1<<fdt.secsize) * 128; 302 tracks_per_dot = fdt.tracks * fdt.heads / 40; 303 if (tracks_per_dot == 0) 304 tracks_per_dot++; 305 306 if (verify_only) { 307 if (!quiet) 308 printf("Verify %dK floppy `%s'.\n", 309 fdt.tracks * fdt.heads * bytes_per_track / 1024, 310 devname); 311 } 312 else if (!quiet) { 313 printf("Format %dK floppy `%s'? (y/n): ", 314 fdt.tracks * fdt.heads * bytes_per_track / 1024, 315 devname); 316 if (!yes()) { 317 printf("Not confirmed.\n"); 318 exit(0); 319 } 320 } 321 322 /* 323 * Formatting. 324 */ 325 if (!quiet) { 326 printf("Processing "); 327 for (track = 0; track < fdt.tracks * fdt.heads; track++) { 328 if (!((track + 1) % tracks_per_dot)) 329 putchar('-'); 330 } 331 putchar('\r'); 332 printf("Processing "); 333 fflush(stdout); 334 } 335 336 error = errs = 0; 337 338 for (track = 0; track < fdt.tracks * fdt.heads; track++) { 339 if (!verify_only) { 340 format_track(fd, track / fdt.heads, fdt.sectrac, 341 track % fdt.heads, fdt.rate, fdt.gap2, 342 fdt.secsize, fill, 343 intleave >= 0 ? intleave : 1); 344 if (!quiet && !((track + 1) % tracks_per_dot)) { 345 putchar('F'); 346 fflush(stdout); 347 } 348 } 349 if (verify) { 350 if (verify_track(fd, track, bytes_per_track) < 0) 351 error = errs = 1; 352 if (!quiet && !((track + 1) % tracks_per_dot)) { 353 if (!verify_only) 354 putchar('\b'); 355 if (error) { 356 putchar('E'); 357 error = 0; 358 } 359 else 360 putchar('V'); 361 fflush(stdout); 362 } 363 } 364 } 365 close(fd); 366 if (!quiet) 367 printf(" done.\n"); 368 369 exit(errs); 370 } 371