FreeBSD-5.3/usr.sbin/fdformat/fdformat.c
/*
* Copyright (C) 1992-1994,2001 by Joerg Wunsch, Dresden
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD: src/usr.sbin/fdformat/fdformat.c,v 1.21.2.1 2004/09/18 17:40:51 scottl Exp $
*/
#include <sys/types.h>
#include <sys/fdcio.h>
#include <sys/stat.h>
#include <ctype.h>
#include <err.h>
#include <errno.h>
#include <fcntl.h>
#include <paths.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <strings.h>
#include <sysexits.h>
#include <unistd.h>
#include "fdutil.h"
static void
format_track(int fd, int cyl, int secs, int head, int rate,
int gaplen, int secsize, int fill, int interleave,
int offset)
{
struct fd_formb f;
int i, j, il[FD_MAX_NSEC + 1];
memset(il, 0, sizeof il);
for(j = 0, i = 1 + offset; i <= secs + offset; i++) {
while(il[(j % secs) + 1])
j++;
il[(j % secs) + 1] = i;
j += interleave;
}
f.format_version = FD_FORMAT_VERSION;
f.head = head;
f.cyl = cyl;
f.transfer_rate = rate;
f.fd_formb_secshift = secsize;
f.fd_formb_nsecs = secs;
f.fd_formb_gaplen = gaplen;
f.fd_formb_fillbyte = fill;
for(i = 0; i < secs; i++) {
f.fd_formb_cylno(i) = cyl;
f.fd_formb_headno(i) = head;
f.fd_formb_secno(i) = il[i+1];
f.fd_formb_secsize(i) = secsize;
}
if(ioctl(fd, FD_FORM, (caddr_t)&f) < 0)
err(EX_OSERR, "ioctl(FD_FORM)");
}
static int
verify_track(int fd, int track, int tracksize)
{
static char *buf;
static int bufsz;
int fdopts = -1, ofdopts, rv = 0;
if (ioctl(fd, FD_GOPTS, &fdopts) < 0)
warn("warning: ioctl(FD_GOPTS)");
else {
ofdopts = fdopts;
fdopts |= FDOPT_NORETRY;
(void)ioctl(fd, FD_SOPTS, &fdopts);
}
if (bufsz < tracksize)
buf = realloc(buf, bufsz = tracksize);
if (buf == 0)
errx(EX_UNAVAILABLE, "out of memory");
if (lseek (fd, (long) track * tracksize, 0) < 0)
rv = -1;
/* try twice reading it, without using the normal retrier */
else if (read (fd, buf, tracksize) != tracksize
&& read (fd, buf, tracksize) != tracksize)
rv = -1;
if (fdopts != -1)
(void)ioctl(fd, FD_SOPTS, &ofdopts);
return (rv);
}
static void
usage (void)
{
errx(EX_USAGE,
"usage: fdformat [-F fill] [-f fmt] [-s fmtstr] [-nqvy] device");
}
static int
yes (void)
{
char reply[256], *p;
reply[sizeof(reply) - 1] = 0;
for (;;) {
fflush(stdout);
if (!fgets (reply, sizeof(reply) - 1, stdin))
return (0);
for (p=reply; *p==' ' || *p=='\t'; ++p)
continue;
if (*p=='y' || *p=='Y')
return (1);
if (*p=='n' || *p=='N' || *p=='\n' || *p=='\r')
return (0);
printf("Answer `yes' or `no': ");
}
}
int
main(int argc, char **argv)
{
enum fd_drivetype type;
struct fd_type fdt, newft, *fdtp;
struct stat sb;
#define MAXPRINTERRS 10
struct fdc_status fdcs[MAXPRINTERRS];
int format, fill, quiet, verify, verify_only, confirm;
int fd, c, i, track, error, tracks_per_dot, bytes_per_track, errs;
int fdopts, flags;
char *fmtstring, *device;
const char *name, *descr;
format = quiet = verify_only = confirm = 0;
verify = 1;
fill = 0xf6;
fmtstring = 0;
while((c = getopt(argc, argv, "F:f:nqs:vy")) != -1)
switch(c) {
case 'F': /* fill byte */
if (getnum(optarg, &fill)) {
fprintf(stderr,
"Bad argument %s to -F option; must be numeric\n",
optarg);
usage();
}
break;
case 'f': /* format in kilobytes */
if (getnum(optarg, &format)) {
fprintf(stderr,
"Bad argument %s to -f option; must be numeric\n",
optarg);
usage();
}
break;
case 'n': /* don't verify */
verify = 0;
break;
case 'q': /* quiet */
quiet = 1;
break;
case 's': /* format string with detailed options */
fmtstring = optarg;
break;
case 'v': /* verify only */
verify = 1;
verify_only = 1;
break;
case 'y': /* confirm */
confirm = 1;
break;
default:
usage();
}
if(optind != argc - 1)
usage();
if (stat(argv[optind], &sb) == -1 && errno == ENOENT) {
/* try prepending _PATH_DEV */
device = malloc(strlen(argv[optind]) + sizeof(_PATH_DEV) + 1);
if (device == 0)
errx(EX_UNAVAILABLE, "out of memory");
strcpy(device, _PATH_DEV);
strcat(device, argv[optind]);
if (stat(device, &sb) == -1) {
free(device);
device = argv[optind]; /* let it fail below */
}
} else {
device = argv[optind];
}
if ((fd = open(device, O_RDWR | O_NONBLOCK)) < 0)
err(EX_OSERR, "open(%s)", device);
/*
* Device initialization.
*
* First, get the device type descriptor. This tells us about
* the media geometry data we need to format a medium. It also
* lets us know quickly whether the device name actually points
* to a floppy disk drive.
*
* Then, obtain any drive options. We're mainly interested to
* see whether we're currently working on a device with media
* density autoselection (FDOPT_AUTOSEL). Then, we add the
* device option to tell the kernel not to log media errors,
* since we can handle them ourselves. If the device does
* media density autoselection, we then need to set the device
* type appropriately, since by opening with O_NONBLOCK we
* told the driver to bypass media autoselection (otherwise we
* wouldn't stand a chance to format an unformatted or damaged
* medium). We do not attempt to set the media type on any
* other devices since this is a privileged operation. For the
* same reason, specifying -f and -s options is only possible
* for autoselecting devices.
*
* Finally, we are ready to turn off O_NONBLOCK, and start to
* actually format something.
*/
if(ioctl(fd, FD_GTYPE, &fdt) < 0)
errx(EX_OSERR, "not a floppy disk: %s", device);
if (ioctl(fd, FD_GDTYPE, &type) == -1)
err(EX_OSERR, "ioctl(FD_GDTYPE)");
if (ioctl(fd, FD_GOPTS, &fdopts) == -1)
err(EX_OSERR, "ioctl(FD_GOPTS)");
fdopts |= FDOPT_NOERRLOG;
if (ioctl(fd, FD_SOPTS, &fdopts) == -1)
err(EX_OSERR, "ioctl(FD_SOPTS, FDOPT_NOERRLOG)");
if (format) {
getname(type, &name, &descr);
fdtp = get_fmt(format, type);
if (fdtp == 0)
errx(EX_USAGE,
"unknown format %d KB for drive type %s",
format, name);
fdt = *fdtp;
}
if (fmtstring) {
parse_fmt(fmtstring, type, fdt, &newft);
fdt = newft;
}
if (ioctl(fd, FD_STYPE, &fdt) < 0)
err(EX_OSERR, "ioctl(FD_STYPE)");
if ((flags = fcntl(fd, F_GETFL, 0)) == -1)
err(EX_OSERR, "fcntl(F_GETFL)");
flags &= ~O_NONBLOCK;
if (fcntl(fd, F_SETFL, flags) == -1)
err(EX_OSERR, "fcntl(F_SETFL)");
bytes_per_track = fdt.sectrac * (128 << fdt.secsize);
/* XXX 20/40 = 0.5 */
tracks_per_dot = (fdt.tracks * fdt.heads + 20) / 40;
if (verify_only) {
if(!quiet)
printf("Verify %dK floppy `%s'.\n",
fdt.tracks * fdt.heads * bytes_per_track / 1024,
device);
}
else if(!quiet && !confirm) {
printf("Format %dK floppy `%s'? (y/n): ",
fdt.tracks * fdt.heads * bytes_per_track / 1024,
device);
if(!yes()) {
printf("Not confirmed.\n");
return (EX_UNAVAILABLE);
}
}
/*
* Formatting.
*/
if(!quiet) {
printf("Processing ");
for (i = 0; i < (fdt.tracks * fdt.heads) / tracks_per_dot; i++)
putchar('-');
printf("\rProcessing ");
fflush(stdout);
}
error = errs = 0;
for (track = 0; track < fdt.tracks * fdt.heads; track++) {
if (!verify_only) {
format_track(fd, track / fdt.heads, fdt.sectrac,
track % fdt.heads, fdt.trans, fdt.f_gap,
fdt.secsize, fill, fdt.f_inter,
track % fdt.heads? fdt.offset_side2: 0);
if(!quiet && !((track + 1) % tracks_per_dot)) {
putchar('F');
fflush(stdout);
}
}
if (verify) {
if (verify_track(fd, track, bytes_per_track) < 0) {
error = 1;
if (errs < MAXPRINTERRS && errno == EIO) {
if (ioctl(fd, FD_GSTAT, fdcs + errs) ==
-1)
errx(EX_IOERR,
"floppy IO error, but no FDC status");
errs++;
}
}
if(!quiet && !((track + 1) % tracks_per_dot)) {
if (!verify_only)
putchar('\b');
if (error) {
putchar('E');
error = 0;
}
else
putchar('V');
fflush(stdout);
}
}
}
if(!quiet)
printf(" done.\n");
if (!quiet && errs) {
fflush(stdout);
fprintf(stderr, "Errors encountered:\nCyl Head Sect Error\n");
for (i = 0; i < errs && i < MAXPRINTERRS; i++) {
fprintf(stderr, " %2d %2d %2d ",
fdcs[i].status[3], fdcs[i].status[4],
fdcs[i].status[5]);
printstatus(fdcs + i, 1);
putc('\n', stderr);
}
if (errs >= MAXPRINTERRS)
fprintf(stderr, "(Further errors not printed.)\n");
}
return errs != 0;
}