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/*
* fdformat.c - Low-level formats a floppy disk - Werner Almesberger
*/
#include <errno.h>
#include <fcntl.h>
#include <getopt.h>
#include <linux/fd.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/ioctl.h>
#include <sys/stat.h>
#include <unistd.h>
#include "c.h"
#include "nls.h"
#include "xalloc.h"
struct floppy_struct param;
#define SECTOR_SIZE 512
static void format_disk(int ctrl)
{
struct format_descr descr;
unsigned int track;
printf(_("Formatting ... "));
fflush(stdout);
if (ioctl(ctrl, FDFMTBEG, NULL) < 0)
err(EXIT_FAILURE, "ioctl: FDFMTBEG");
for (track = 0; track < param.track; track++) {
descr.track = track;
descr.head = 0;
if (ioctl(ctrl, FDFMTTRK, (long) &descr) < 0)
err(EXIT_FAILURE, "ioctl: FDFMTTRK");
printf("%3d\b\b\b", track);
fflush(stdout);
if (param.head == 2) {
descr.head = 1;
if (ioctl(ctrl, FDFMTTRK, (long)&descr) < 0)
err(EXIT_FAILURE, "ioctl: FDFMTTRK");
}
}
if (ioctl(ctrl, FDFMTEND, NULL) < 0)
err(EXIT_FAILURE, "ioctl: FDFMTEND");
printf(_("done\n"));
}
static void verify_disk(char *name)
{
unsigned char *data;
unsigned int cyl;
int fd, cyl_size, count;
cyl_size = param.sect * param.head * 512;
data = xmalloc(cyl_size);
printf(_("Verifying ... "));
fflush(stdout);
if ((fd = open(name, O_RDONLY)) < 0)
err(EXIT_FAILURE, _("cannot open file %s"), name);
for (cyl = 0; cyl < param.track; cyl++) {
int read_bytes;
printf("%3d\b\b\b", cyl);
fflush(stdout);
read_bytes = read(fd, data, cyl_size);
if (read_bytes != cyl_size) {
if (read_bytes < 0)
perror(_("Read: "));
fprintf(stderr,
_("Problem reading cylinder %d,"
" expected %d, read %d\n"),
cyl, cyl_size, read_bytes);
free(data);
exit(EXIT_FAILURE);
}
for (count = 0; count < cyl_size; count++)
if (data[count] != FD_FILL_BYTE) {
printf(_("bad data in cyl %d\n"
"Continuing ... "), cyl);
fflush(stdout);
break;
}
}
free(data);
printf(_("done\n"));
if (close(fd) < 0)
err(EXIT_FAILURE, "close");
}
static void __attribute__ ((__noreturn__)) usage(FILE * out)
{
fprintf(out, _("Usage: %s [options] device\n"),
program_invocation_short_name);
fprintf(out, _("\nOptions:\n"
" -n, --no-verify disable the verification after the format\n"
" -V, --version output version information and exit\n"
" -h, --help display this help and exit\n\n"));
exit(out == stderr ? EXIT_FAILURE : EXIT_SUCCESS);
}
int main(int argc, char **argv)
{
int ch;
int ctrl;
int verify;
struct stat st;
static const struct option longopts[] = {
{"no-verify", no_argument, NULL, 'n'},
{"version", no_argument, NULL, 'V'},
{"help", no_argument, NULL, 'h'},
{NULL, 0, NULL, 0}
};
setlocale(LC_ALL, "");
bindtextdomain(PACKAGE, LOCALEDIR);
textdomain(PACKAGE);
while ((ch = getopt_long(argc, argv, "nVh", longopts, NULL)) != -1)
switch (ch) {
case 'n':
verify = 0;
break;
case 'V':
printf(_("%s from %s\n"), program_invocation_short_name,
PACKAGE_STRING);
exit(EXIT_SUCCESS);
case 'h':
usage(stdout);
default:
usage(stderr);
}
argc -= optind;
argv += optind;
if (argc < 1)
usage(stderr);
if (stat(argv[0], &st) < 0)
err(EXIT_FAILURE, _("cannot stat file %s"), argv[0]);
if (!S_ISBLK(st.st_mode))
/* do not test major - perhaps this was an USB floppy */
errx(EXIT_FAILURE, _("%s: not a block device"), argv[0]);
if (access(argv[0], W_OK) < 0)
err(EXIT_FAILURE, _("cannot access file %s"), argv[0]);
ctrl = open(argv[0], O_WRONLY);
if (ctrl < 0)
err(EXIT_FAILURE, _("cannot open file %s"), argv[0]);
if (ioctl(ctrl, FDGETPRM, (long)¶m) < 0)
err(EXIT_FAILURE, _("Could not determine current format type"));
printf(_("%s-sided, %d tracks, %d sec/track. Total capacity %d kB.\n"),
(param.head == 2) ? _("Double") : _("Single"),
param.track, param.sect, param.size >> 1);
format_disk(ctrl);
close(ctrl);
if (verify)
verify_disk(argv[0]);
return EXIT_SUCCESS;
}
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