1330449Seadler/*- 2330449Seadler * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3330449Seadler * 476589Sjoerg * Copyright (c) 2001 Joerg Wunsch 576589Sjoerg * 676589Sjoerg * All rights reserved. 776589Sjoerg * 876589Sjoerg * Redistribution and use in source and binary forms, with or without 976589Sjoerg * modification, are permitted provided that the following conditions 1076589Sjoerg * are met: 1176589Sjoerg * 1. Redistributions of source code must retain the above copyright 1276589Sjoerg * notice, this list of conditions and the following disclaimer. 1376589Sjoerg * 2. Redistributions in binary form must reproduce the above copyright 1476589Sjoerg * notice, this list of conditions and the following disclaimer in the 1576589Sjoerg * documentation and/or other materials provided with the distribution. 1676589Sjoerg * 1776589Sjoerg * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY EXPRESS OR 1876589Sjoerg * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 1976589Sjoerg * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 2076589Sjoerg * IN NO EVENT SHALL THE DEVELOPERS BE LIABLE FOR ANY DIRECT, INDIRECT, 2176589Sjoerg * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 2276589Sjoerg * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 2376589Sjoerg * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 2476589Sjoerg * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 2576589Sjoerg * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 2676589Sjoerg * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 2776589Sjoerg * 2876589Sjoerg * $FreeBSD: stable/11/usr.sbin/fdread/fdread.c 330449 2018-03-05 07:26:05Z eadler $ 2976589Sjoerg */ 3076589Sjoerg 3176589Sjoerg#include <sys/types.h> 3276589Sjoerg#include <sys/stat.h> 3377801Sjoerg#include <sys/fdcio.h> 3476589Sjoerg 3576589Sjoerg#include <err.h> 3676589Sjoerg#include <errno.h> 3776589Sjoerg#include <fcntl.h> 3876589Sjoerg#include <paths.h> 3976589Sjoerg#include <stdio.h> 4076589Sjoerg#include <stdlib.h> 4176589Sjoerg#include <string.h> 4276589Sjoerg#include <sysexits.h> 4376589Sjoerg#include <unistd.h> 4476589Sjoerg 4577729Sjoerg#include <dev/ic/nec765.h> 4676589Sjoerg 4779110Sjoerg#include "fdutil.h" 4879110Sjoerg 49227253Sedstatic int quiet, recover; 50227253Sedstatic unsigned char fillbyte = 0xf0; /* "foo" */ 5176589Sjoerg 52227253Sedstatic int doread(int fd, FILE *of, const char *_devname); 53227253Sedstatic int doreadid(int fd, unsigned int numids, unsigned int trackno); 54227253Sedstatic void usage(void); 5576589Sjoerg 56227253Sedstatic void 5776589Sjoergusage(void) 5876589Sjoerg{ 5976589Sjoerg 6076589Sjoerg errx(EX_USAGE, 6178857Sjoerg "usage: fdread [-qr] [-d device] [-f fillbyte]\n" 6278857Sjoerg " fdread [-d device] -I numids [-t trackno]"); 6376589Sjoerg} 6476589Sjoerg 6576589Sjoerg 6676589Sjoergint 6776589Sjoergmain(int argc, char **argv) 6876589Sjoerg{ 6976589Sjoerg int c, errs = 0; 7078857Sjoerg unsigned int numids = 0, trackno = 0; 71139905Sdelphij const char *fname = 0, *_devname = "/dev/fd0"; 7276589Sjoerg char *cp; 7376589Sjoerg FILE *of = stdout; 7476589Sjoerg int fd; 7576589Sjoerg unsigned long ul; 7676589Sjoerg 7778857Sjoerg while ((c = getopt(argc, argv, "d:f:I:o:qrt:")) != -1) 7876589Sjoerg switch (c) { 7976589Sjoerg case 'd': 80139905Sdelphij _devname = optarg; 8176589Sjoerg break; 8276589Sjoerg 8376589Sjoerg case 'f': 8476589Sjoerg ul = strtoul(optarg, &cp, 0); 8576589Sjoerg if (*cp != '\0') { 8676589Sjoerg fprintf(stderr, 8776589Sjoerg "Bad argument %s to -f option; must be numeric\n", 8876589Sjoerg optarg); 8976589Sjoerg usage(); 9076589Sjoerg } 9176589Sjoerg if (ul > 0xff) 9276589Sjoerg warnx( 9376589Sjoerg "Warning: fillbyte %#lx too large, truncating\n", 9476589Sjoerg ul); 9576589Sjoerg fillbyte = ul & 0xff; 9676589Sjoerg break; 9776589Sjoerg 9878857Sjoerg case 'I': 9978857Sjoerg ul = strtoul(optarg, &cp, 0); 10078857Sjoerg if (*cp != '\0') { 10178857Sjoerg fprintf(stderr, 10278857Sjoerg "Bad argument %s to -I option; must be numeric\n", 10378857Sjoerg optarg); 10478857Sjoerg usage(); 10578857Sjoerg } 10678857Sjoerg numids = ul; 10778857Sjoerg break; 10878857Sjoerg 10976589Sjoerg case 'o': 11076589Sjoerg fname = optarg; 11176589Sjoerg break; 11276589Sjoerg 11376589Sjoerg case 'q': 11476589Sjoerg quiet++; 11576589Sjoerg break; 11676589Sjoerg 11776589Sjoerg case 'r': 11876589Sjoerg recover++; 11976589Sjoerg break; 12076589Sjoerg 12178857Sjoerg case 't': 12278857Sjoerg ul = strtoul(optarg, &cp, 0); 12378857Sjoerg if (*cp != '\0') { 12478857Sjoerg fprintf(stderr, 12578857Sjoerg "Bad argument %s to -t option; must be numeric\n", 12678857Sjoerg optarg); 12778857Sjoerg usage(); 12878857Sjoerg } 12978857Sjoerg trackno = ul; 13078857Sjoerg break; 13178857Sjoerg 13276589Sjoerg default: 13376589Sjoerg errs++; 13476589Sjoerg } 13576589Sjoerg argc -= optind; 13676589Sjoerg argv += optind; 13776589Sjoerg 13876589Sjoerg if (argc != 0 || errs) 13976589Sjoerg usage(); 14078857Sjoerg /* check for mutually exclusive options */ 14178857Sjoerg if (numids) { 14278857Sjoerg if (fname || quiet || recover) 14378857Sjoerg usage(); 14478857Sjoerg } else { 14578857Sjoerg if (trackno) 14678857Sjoerg usage(); 14778857Sjoerg } 14876589Sjoerg 14976589Sjoerg if (fname) { 15076589Sjoerg if ((of = fopen(fname, "w")) == NULL) 15176589Sjoerg err(EX_OSERR, "cannot create output file %s", fname); 15276589Sjoerg } 15376589Sjoerg 154223197Sjoerg if ((fd = open(_devname, O_RDONLY)) == -1) 155139905Sdelphij err(EX_OSERR, "cannot open device %s", _devname); 15676589Sjoerg 157139905Sdelphij return (numids? doreadid(fd, numids, trackno): doread(fd, of, _devname)); 15876589Sjoerg} 15976589Sjoerg 160227253Sedstatic int 161139905Sdelphijdoread(int fd, FILE *of, const char *_devname) 16276589Sjoerg{ 16376589Sjoerg char *trackbuf; 16476589Sjoerg int rv, fdopts, recoverable, nerrs = 0; 16576589Sjoerg unsigned int nbytes, tracksize, mediasize, secsize, n; 16676589Sjoerg struct fdc_status fdcs; 16776589Sjoerg struct fd_type fdt; 16876589Sjoerg 16976589Sjoerg if (ioctl(fd, FD_GTYPE, &fdt) == -1) 17076589Sjoerg err(EX_OSERR, "ioctl(FD_GTYPE) failed -- not a floppy?"); 17176589Sjoerg 17276589Sjoerg secsize = 128 << fdt.secsize; 17376589Sjoerg tracksize = fdt.sectrac * secsize; 17476589Sjoerg mediasize = tracksize * fdt.tracks * fdt.heads; 175297962Saraujo if ((trackbuf = malloc(tracksize)) == NULL) 17676589Sjoerg errx(EX_TEMPFAIL, "out of memory"); 17776589Sjoerg 17876589Sjoerg if (!quiet) 17976589Sjoerg fprintf(stderr, "Reading %d * %d * %d * %d medium at %s\n", 180139905Sdelphij fdt.tracks, fdt.heads, fdt.sectrac, secsize, _devname); 18176589Sjoerg 18276589Sjoerg for (nbytes = 0; nbytes < mediasize;) { 18376589Sjoerg if (lseek(fd, nbytes, SEEK_SET) != nbytes) 18476589Sjoerg err(EX_OSERR, "cannot lseek()"); 18576589Sjoerg rv = read(fd, trackbuf, tracksize); 18676589Sjoerg if (rv == 0) { 18776589Sjoerg /* EOF? */ 18876589Sjoerg warnx("premature EOF after %u bytes", nbytes); 189318395Saraujo free(trackbuf); 19076589Sjoerg return (EX_OK); 19176589Sjoerg } 192139905Sdelphij if ((unsigned)rv == tracksize) { 19376589Sjoerg nbytes += rv; 19476589Sjoerg if (!quiet) 19576589Sjoerg fprintf(stderr, "%5d KB\r", nbytes / 1024); 19676589Sjoerg fwrite(trackbuf, sizeof(unsigned char), rv, of); 19776589Sjoerg fflush(of); 19876589Sjoerg continue; 19976589Sjoerg } 20076589Sjoerg if (rv == -1) { 20176589Sjoerg /* fall back reading one sector at a time */ 20276589Sjoerg for (n = 0; n < tracksize; n += secsize) { 20376589Sjoerg if (lseek(fd, nbytes, SEEK_SET) != nbytes) 20476589Sjoerg err(EX_OSERR, "cannot lseek()"); 20576589Sjoerg rv = read(fd, trackbuf, secsize); 206139905Sdelphij if ((unsigned) rv == secsize) { 20776589Sjoerg nbytes += rv; 20876589Sjoerg if (!quiet) 20976589Sjoerg fprintf(stderr, "%5d KB\r", 21076589Sjoerg nbytes / 1024); 21176589Sjoerg fwrite(trackbuf, sizeof(unsigned char), 21276589Sjoerg rv, of); 21376589Sjoerg fflush(of); 21476589Sjoerg continue; 21576589Sjoerg } 21676589Sjoerg if (rv == -1) { 21776589Sjoerg if (errno != EIO) { 21876589Sjoerg if (!quiet) 21976589Sjoerg putc('\n', stderr); 22076589Sjoerg perror("non-IO error"); 221318395Saraujo free(trackbuf); 22276589Sjoerg return (EX_OSERR); 22376589Sjoerg } 22476589Sjoerg if (ioctl(fd, FD_GSTAT, &fdcs) == -1) 22576589Sjoerg errx(EX_IOERR, 22676589Sjoerg "floppy IO error, but no FDC status"); 22776589Sjoerg nerrs++; 22876589Sjoerg recoverable = fdcs.status[2] & 22976589Sjoerg NE7_ST2_DD; 23076589Sjoerg if (!quiet) { 23179110Sjoerg printstatus(&fdcs, 0); 23276589Sjoerg fputs(" (", stderr); 23376589Sjoerg if (!recoverable) 23476589Sjoerg fputs("not ", stderr); 23576589Sjoerg fputs("recoverable)", stderr); 23676589Sjoerg } 23776589Sjoerg if (!recover) { 23876589Sjoerg if (!quiet) 23976589Sjoerg putc('\n', stderr); 240318395Saraujo free(trackbuf); 24176589Sjoerg return (EX_IOERR); 24276589Sjoerg } 24376589Sjoerg memset(trackbuf, fillbyte, secsize); 24476589Sjoerg if (recoverable) { 24576589Sjoerg fdopts |= FDOPT_NOERROR; 24676589Sjoerg if (ioctl(fd, FD_SOPTS, 24776589Sjoerg &fdopts) == -1) 24876589Sjoerg err(EX_OSERR, 24976589Sjoerg "ioctl(fd, FD_SOPTS, FDOPT_NOERROR)"); 25076589Sjoerg rv = read(fd, trackbuf, 25176589Sjoerg secsize); 252139905Sdelphij if ((unsigned)rv != secsize) 25376589Sjoerg err(EX_IOERR, 25476589Sjoerg "read() with FDOPT_NOERROR still fails"); 25576589Sjoerg fdopts &= ~FDOPT_NOERROR; 25676589Sjoerg (void)ioctl(fd, FD_SOPTS, 25776589Sjoerg &fdopts); 25876589Sjoerg } 25976589Sjoerg if (!quiet) { 26076589Sjoerg if (recoverable) 26176589Sjoerg fprintf(stderr, 26276589Sjoerg ": recovered"); 26376589Sjoerg else 26476589Sjoerg fprintf(stderr, 26576589Sjoerg ": dummy"); 26676589Sjoerg fprintf(stderr, 26776589Sjoerg " data @ %#x ... %#x\n", 26876589Sjoerg nbytes, 26976589Sjoerg nbytes + secsize - 1); 27076589Sjoerg } 27176589Sjoerg nbytes += secsize; 27276589Sjoerg fwrite(trackbuf, sizeof(unsigned char), 27376589Sjoerg secsize, of); 27476589Sjoerg fflush(of); 27576589Sjoerg continue; 27676589Sjoerg } 27776589Sjoerg errx(EX_OSERR, "unexpected read() result: %d", 27876589Sjoerg rv); 27976589Sjoerg } 28076589Sjoerg } 281139905Sdelphij if ((unsigned)rv < tracksize) { 282139905Sdelphij /* should not happen */ 283139905Sdelphij nbytes += rv; 284139905Sdelphij if (!quiet) 285139905Sdelphij fprintf(stderr, "\nshort after %5d KB\r", 286139905Sdelphij nbytes / 1024); 287139905Sdelphij fwrite(trackbuf, sizeof(unsigned char), rv, of); 288139905Sdelphij fflush(of); 289139905Sdelphij continue; 290139905Sdelphij } 29176589Sjoerg } 292318395Saraujo free(trackbuf); 29376589Sjoerg if (!quiet) { 29476589Sjoerg putc('\n', stderr); 29576589Sjoerg if (nerrs) 29676589Sjoerg fprintf(stderr, "%d error%s\n", 29776589Sjoerg nerrs, nerrs > 1? "s": ""); 29876589Sjoerg } 29976589Sjoerg 30076589Sjoerg return (nerrs? EX_IOERR: EX_OK); 30176589Sjoerg} 30276589Sjoerg 303227253Sedstatic int 30478857Sjoergdoreadid(int fd, unsigned int numids, unsigned int trackno) 30578857Sjoerg{ 306194892Sjoerg int rv = 0; 30778857Sjoerg unsigned int i; 30878857Sjoerg struct fdc_readid info; 30978857Sjoerg struct fdc_status fdcs; 31078857Sjoerg struct fd_type fdt; 31178857Sjoerg 31278857Sjoerg if (ioctl(fd, FD_GTYPE, &fdt) == -1) 31378857Sjoerg err(EX_OSERR, "ioctl(FD_GTYPE) failed -- not a floppy?"); 31478857Sjoerg 31578857Sjoerg for (i = 0; i < numids; i++) { 31678857Sjoerg info.cyl = trackno / fdt.heads; 31778857Sjoerg info.head = fdt.heads > 1? trackno % fdt.heads: 0; 318160522Sstefanf if (ioctl(fd, FD_READID, &info) == 0) { 31978857Sjoerg printf("C = %d, H = %d, R = %d, N = %d\n", 32078857Sjoerg info.cyl, info.head, info.sec, info.secshift); 32178857Sjoerg } else { 32278857Sjoerg if (errno != EIO) { 32378857Sjoerg perror("non-IO error"); 32478857Sjoerg return (EX_OSERR); 32578857Sjoerg } 32678857Sjoerg if (ioctl(fd, FD_GSTAT, &fdcs) == -1) 32778857Sjoerg errx(EX_IOERR, 32878857Sjoerg "floppy IO error, but no FDC status"); 32979110Sjoerg printstatus(&fdcs, 0); 33078857Sjoerg putc('\n', stderr); 33178857Sjoerg rv = EX_IOERR; 33278857Sjoerg } 33378857Sjoerg } 33478857Sjoerg 33578857Sjoerg return (rv); 33678857Sjoerg} 337