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-rw-r--r--disk-utils/fdformat.c256
1 files changed, 256 insertions, 0 deletions
diff --git a/disk-utils/fdformat.c b/disk-utils/fdformat.c
new file mode 100644
index 0000000..38849eb
--- /dev/null
+++ b/disk-utils/fdformat.c
@@ -0,0 +1,256 @@
+/*
+ * 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 "blkdev.h"
+#include "strutils.h"
+#include "closestream.h"
+#include "nls.h"
+#include "xalloc.h"
+
+#define SECTOR_SIZE 512
+
+static struct floppy_struct param;
+
+
+static void format_begin(int ctrl)
+{
+ if (ioctl(ctrl, FDFMTBEG, NULL) < 0)
+ err(EXIT_FAILURE, "ioctl: FDFMTBEG");
+}
+
+static void format_end(int ctrl)
+{
+ if (ioctl(ctrl, FDFMTEND, NULL) < 0)
+ err(EXIT_FAILURE, "ioctl: FDFMTEND");
+}
+
+static void format_track_head(int ctrl, struct format_descr *descr)
+{
+ if (ioctl(ctrl, FDFMTTRK, (long) descr) < 0)
+ err(EXIT_FAILURE, "ioctl: FDFMTTRK");
+}
+
+static void seek_track_head(int ctrl, struct format_descr *descr)
+{
+ lseek(ctrl, ((off_t) descr->track * param.head + descr->head)
+ * param.sect * SECTOR_SIZE, SEEK_SET);
+}
+
+static void format_disk(int ctrl, unsigned int track_from, unsigned int track_to)
+{
+ struct format_descr current;
+
+ printf(_("Formatting ... "));
+ fflush(stdout);
+
+ format_begin(ctrl);
+
+ for (current.track = track_from; current.track <= track_to; current.track++) {
+ for (current.head = 0; current.head < param.head; current.head++) {
+ printf("%3u/%u\b\b\b\b\b", current.track, current.head);
+ fflush(stdout);
+ format_track_head(ctrl, &current);
+ }
+ }
+
+ format_end(ctrl);
+
+ printf(" \b\b\b\b\b%s", _("done\n"));
+}
+
+static void verify_disk(int ctrl, unsigned int track_from, unsigned int track_to, unsigned int repair)
+{
+ unsigned char *data;
+ struct format_descr current;
+ int track_size, count;
+ unsigned int retries_left;
+
+ track_size = param.sect * SECTOR_SIZE;
+ data = xmalloc(track_size);
+ printf(_("Verifying ... "));
+ fflush(stdout);
+
+ current.track = track_from;
+ current.head = 0;
+ seek_track_head (ctrl, &current);
+
+ for (current.track = track_from; current.track <= track_to; current.track++) {
+ for (current.head = 0; current.head < param.head; current.head++) {
+ int read_bytes;
+
+ printf("%3u\b\b\b", current.track);
+ fflush(stdout);
+
+ retries_left = repair;
+ do {
+ read_bytes = read(ctrl, data, track_size);
+ if (read_bytes != track_size) {
+ if (retries_left) {
+ format_begin(ctrl);
+ format_track_head(ctrl, &current);
+ format_end(ctrl);
+ seek_track_head (ctrl, &current);
+ retries_left--;
+ if (retries_left)
+ continue;
+ }
+ if (read_bytes < 0)
+ perror(_("Read: "));
+ fprintf(stderr,
+ _("Problem reading track/head %u/%u,"
+ " expected %d, read %d\n"),
+ current.track, current.head, track_size, read_bytes);
+ free(data);
+ exit(EXIT_FAILURE);
+ }
+ for (count = 0; count < track_size; count++)
+ if (data[count] != FD_FILL_BYTE) {
+ if (retries_left) {
+ format_begin(ctrl);
+ format_track_head(ctrl, &current);
+ format_end(ctrl);
+ seek_track_head (ctrl, &current);
+ retries_left--;
+ if (retries_left)
+ continue;
+ }
+ printf(_("bad data in track/head %u/%u\n"
+ "Continuing ... "), current.track, current.head);
+ fflush(stdout);
+ break;
+ }
+ break;
+ } while (retries_left);
+ }
+ }
+
+ free(data);
+ printf(_("done\n"));
+}
+
+static void __attribute__((__noreturn__)) usage(void)
+{
+ FILE *out = stdout;
+ fputs(USAGE_HEADER, out);
+ fprintf(out, _(" %s [options] <device>\n"),
+ program_invocation_short_name);
+
+ fputs(USAGE_SEPARATOR, out);
+ fputs(_("Do a low-level formatting of a floppy disk.\n"), out);
+
+ fputs(USAGE_OPTIONS, out);
+ fputs(_(" -f, --from <N> start at the track N (default 0)\n"), out);
+ fputs(_(" -t, --to <N> stop at the track N\n"), out);
+ fputs(_(" -r, --repair <N> try to repair tracks failed during\n"
+ " the verification (max N retries)\n"), out);
+ fputs(_(" -n, --no-verify disable the verification after the format\n"), out);
+
+ fputs(USAGE_SEPARATOR, out);
+ printf(USAGE_HELP_OPTIONS(19));
+ printf(USAGE_MAN_TAIL("fdformat(8)"));
+
+ exit(EXIT_SUCCESS);
+}
+
+int main(int argc, char **argv)
+{
+ int ch;
+ int ctrl;
+ int verify = 1;
+ unsigned int repair = 0;
+ unsigned int track_from = 0;
+ unsigned int track_to = 0;
+ int has_user_defined_track_to = 0;
+ struct stat st;
+
+ static const struct option longopts[] = {
+ {"from", required_argument, NULL, 'f'},
+ {"to", required_argument, NULL, 't'},
+ {"repair", required_argument, NULL, 'r'},
+ {"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);
+ close_stdout_atexit();
+
+ while ((ch = getopt_long(argc, argv, "f:t:r:nVh", longopts, NULL)) != -1)
+ switch (ch) {
+ case 'f':
+ track_from = strtou32_or_err(optarg, _("invalid argument - from"));
+ break;
+ case 't':
+ has_user_defined_track_to = 1;
+ track_to = strtou32_or_err(optarg, _("invalid argument - to"));
+ break;
+ case 'r':
+ repair = strtou32_or_err(optarg, _("invalid argument - repair"));
+ break;
+ case 'n':
+ verify = 0;
+ break;
+ case 'V':
+ print_version(EXIT_SUCCESS);
+ case 'h':
+ usage();
+ default:
+ errtryhelp(EXIT_FAILURE);
+ }
+
+ argc -= optind;
+ argv += optind;
+
+ if (argc < 1) {
+ warnx(_("no device specified"));
+ errtryhelp(EXIT_FAILURE);
+ }
+ if (stat(argv[0], &st) < 0)
+ err(EXIT_FAILURE, _("stat of %s failed"), 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]);
+ ctrl = open_blkdev_or_file(&st, argv[0], O_RDWR);
+ if (ctrl < 0)
+ err(EXIT_FAILURE, _("cannot open %s"), argv[0]);
+ if (ioctl(ctrl, FDGETPRM, (long) &param) < 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);
+
+ if (!has_user_defined_track_to)
+ track_to = param.track - 1;
+
+ if (track_from >= param.track)
+ err(EXIT_FAILURE, _("user defined start track exceeds the medium specific maximum"));
+ if (track_to >= param.track)
+ err(EXIT_FAILURE, _("user defined end track exceeds the medium specific maximum"));
+ if (track_from > track_to)
+ err(EXIT_FAILURE, _("user defined start track exceeds the user defined end track"));
+
+ format_disk(ctrl, track_from, track_to);
+
+ if (verify)
+ verify_disk(ctrl, track_from, track_to, repair);
+
+ if (close_fd(ctrl) != 0)
+ err(EXIT_FAILURE, _("close failed"));
+
+ return EXIT_SUCCESS;
+}
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