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1de7b4b805
Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. No functional change intended.
337 lines
8.0 KiB
C
337 lines
8.0 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2001 Joerg Wunsch
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE DEVELOPERS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <sys/fdcio.h>
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#include <err.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <paths.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sysexits.h>
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#include <unistd.h>
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#include <dev/ic/nec765.h>
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#include "fdutil.h"
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static int quiet, recover;
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static unsigned char fillbyte = 0xf0; /* "foo" */
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static int doread(int fd, FILE *of, const char *_devname);
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static int doreadid(int fd, unsigned int numids, unsigned int trackno);
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static void usage(void);
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static void
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usage(void)
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{
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errx(EX_USAGE,
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"usage: fdread [-qr] [-d device] [-f fillbyte]\n"
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" fdread [-d device] -I numids [-t trackno]");
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}
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int
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main(int argc, char **argv)
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{
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int c, errs = 0;
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unsigned int numids = 0, trackno = 0;
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const char *fname = 0, *_devname = "/dev/fd0";
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char *cp;
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FILE *of = stdout;
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int fd;
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unsigned long ul;
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while ((c = getopt(argc, argv, "d:f:I:o:qrt:")) != -1)
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switch (c) {
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case 'd':
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_devname = optarg;
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break;
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case 'f':
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ul = strtoul(optarg, &cp, 0);
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if (*cp != '\0') {
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fprintf(stderr,
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"Bad argument %s to -f option; must be numeric\n",
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optarg);
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usage();
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}
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if (ul > 0xff)
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warnx(
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"Warning: fillbyte %#lx too large, truncating\n",
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ul);
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fillbyte = ul & 0xff;
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break;
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case 'I':
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ul = strtoul(optarg, &cp, 0);
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if (*cp != '\0') {
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fprintf(stderr,
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"Bad argument %s to -I option; must be numeric\n",
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optarg);
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usage();
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}
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numids = ul;
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break;
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case 'o':
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fname = optarg;
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break;
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case 'q':
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quiet++;
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break;
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case 'r':
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recover++;
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break;
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case 't':
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ul = strtoul(optarg, &cp, 0);
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if (*cp != '\0') {
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fprintf(stderr,
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"Bad argument %s to -t option; must be numeric\n",
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optarg);
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usage();
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}
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trackno = ul;
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break;
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default:
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errs++;
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}
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argc -= optind;
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argv += optind;
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if (argc != 0 || errs)
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usage();
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/* check for mutually exclusive options */
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if (numids) {
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if (fname || quiet || recover)
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usage();
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} else {
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if (trackno)
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usage();
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}
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if (fname) {
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if ((of = fopen(fname, "w")) == NULL)
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err(EX_OSERR, "cannot create output file %s", fname);
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}
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if ((fd = open(_devname, O_RDONLY)) == -1)
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err(EX_OSERR, "cannot open device %s", _devname);
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return (numids? doreadid(fd, numids, trackno): doread(fd, of, _devname));
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}
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static int
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doread(int fd, FILE *of, const char *_devname)
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{
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char *trackbuf;
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int rv, fdopts, recoverable, nerrs = 0;
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unsigned int nbytes, tracksize, mediasize, secsize, n;
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struct fdc_status fdcs;
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struct fd_type fdt;
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if (ioctl(fd, FD_GTYPE, &fdt) == -1)
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err(EX_OSERR, "ioctl(FD_GTYPE) failed -- not a floppy?");
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secsize = 128 << fdt.secsize;
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tracksize = fdt.sectrac * secsize;
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mediasize = tracksize * fdt.tracks * fdt.heads;
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if ((trackbuf = malloc(tracksize)) == NULL)
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errx(EX_TEMPFAIL, "out of memory");
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if (!quiet)
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fprintf(stderr, "Reading %d * %d * %d * %d medium at %s\n",
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fdt.tracks, fdt.heads, fdt.sectrac, secsize, _devname);
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for (nbytes = 0; nbytes < mediasize;) {
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if (lseek(fd, nbytes, SEEK_SET) != nbytes)
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err(EX_OSERR, "cannot lseek()");
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rv = read(fd, trackbuf, tracksize);
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if (rv == 0) {
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/* EOF? */
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warnx("premature EOF after %u bytes", nbytes);
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free(trackbuf);
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return (EX_OK);
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}
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if ((unsigned)rv == tracksize) {
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nbytes += rv;
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if (!quiet)
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fprintf(stderr, "%5d KB\r", nbytes / 1024);
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fwrite(trackbuf, sizeof(unsigned char), rv, of);
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fflush(of);
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continue;
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}
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if (rv == -1) {
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/* fall back reading one sector at a time */
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for (n = 0; n < tracksize; n += secsize) {
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if (lseek(fd, nbytes, SEEK_SET) != nbytes)
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err(EX_OSERR, "cannot lseek()");
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rv = read(fd, trackbuf, secsize);
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if ((unsigned) rv == secsize) {
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nbytes += rv;
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if (!quiet)
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fprintf(stderr, "%5d KB\r",
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nbytes / 1024);
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fwrite(trackbuf, sizeof(unsigned char),
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rv, of);
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fflush(of);
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continue;
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}
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if (rv == -1) {
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if (errno != EIO) {
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if (!quiet)
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putc('\n', stderr);
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perror("non-IO error");
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free(trackbuf);
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return (EX_OSERR);
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}
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if (ioctl(fd, FD_GSTAT, &fdcs) == -1)
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errx(EX_IOERR,
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"floppy IO error, but no FDC status");
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nerrs++;
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recoverable = fdcs.status[2] &
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NE7_ST2_DD;
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if (!quiet) {
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printstatus(&fdcs, 0);
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fputs(" (", stderr);
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if (!recoverable)
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fputs("not ", stderr);
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fputs("recoverable)", stderr);
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}
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if (!recover) {
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if (!quiet)
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putc('\n', stderr);
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free(trackbuf);
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return (EX_IOERR);
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}
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memset(trackbuf, fillbyte, secsize);
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if (recoverable) {
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fdopts |= FDOPT_NOERROR;
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if (ioctl(fd, FD_SOPTS,
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&fdopts) == -1)
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err(EX_OSERR,
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"ioctl(fd, FD_SOPTS, FDOPT_NOERROR)");
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rv = read(fd, trackbuf,
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secsize);
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if ((unsigned)rv != secsize)
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err(EX_IOERR,
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"read() with FDOPT_NOERROR still fails");
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fdopts &= ~FDOPT_NOERROR;
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(void)ioctl(fd, FD_SOPTS,
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&fdopts);
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}
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if (!quiet) {
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if (recoverable)
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fprintf(stderr,
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": recovered");
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else
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fprintf(stderr,
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": dummy");
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fprintf(stderr,
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" data @ %#x ... %#x\n",
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nbytes,
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nbytes + secsize - 1);
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}
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nbytes += secsize;
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fwrite(trackbuf, sizeof(unsigned char),
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secsize, of);
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fflush(of);
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continue;
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}
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errx(EX_OSERR, "unexpected read() result: %d",
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rv);
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}
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}
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if ((unsigned)rv < tracksize) {
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/* should not happen */
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nbytes += rv;
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if (!quiet)
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fprintf(stderr, "\nshort after %5d KB\r",
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nbytes / 1024);
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fwrite(trackbuf, sizeof(unsigned char), rv, of);
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fflush(of);
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continue;
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}
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}
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free(trackbuf);
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if (!quiet) {
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putc('\n', stderr);
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if (nerrs)
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fprintf(stderr, "%d error%s\n",
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nerrs, nerrs > 1? "s": "");
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}
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return (nerrs? EX_IOERR: EX_OK);
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}
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static int
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doreadid(int fd, unsigned int numids, unsigned int trackno)
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{
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int rv = 0;
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unsigned int i;
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struct fdc_readid info;
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struct fdc_status fdcs;
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struct fd_type fdt;
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if (ioctl(fd, FD_GTYPE, &fdt) == -1)
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err(EX_OSERR, "ioctl(FD_GTYPE) failed -- not a floppy?");
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for (i = 0; i < numids; i++) {
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info.cyl = trackno / fdt.heads;
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info.head = fdt.heads > 1? trackno % fdt.heads: 0;
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if (ioctl(fd, FD_READID, &info) == 0) {
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printf("C = %d, H = %d, R = %d, N = %d\n",
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info.cyl, info.head, info.sec, info.secshift);
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} else {
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if (errno != EIO) {
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perror("non-IO error");
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return (EX_OSERR);
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}
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if (ioctl(fd, FD_GSTAT, &fdcs) == -1)
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errx(EX_IOERR,
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"floppy IO error, but no FDC status");
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printstatus(&fdcs, 0);
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putc('\n', stderr);
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rv = EX_IOERR;
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}
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}
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return (rv);
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}
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