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.
276 lines
6.7 KiB
C
276 lines
6.7 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 1998 Robert Nordier
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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
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
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* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
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* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef lint
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static const char rcsid[] =
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"$FreeBSD$";
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#endif /* not lint */
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#include <sys/param.h>
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#include <sys/stat.h>
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#include <err.h>
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#include <errno.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 <unistd.h>
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#include "mkfs_msdos.h"
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#define argto1(arg, lo, msg) argtou(arg, lo, 0xff, msg)
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#define argto2(arg, lo, msg) argtou(arg, lo, 0xffff, msg)
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#define argto4(arg, lo, msg) argtou(arg, lo, 0xffffffff, msg)
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#define argtox(arg, lo, msg) argtou(arg, lo, UINT_MAX, msg)
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static u_int argtou(const char *, u_int, u_int, const char *);
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static off_t argtooff(const char *, const char *);
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static void usage(void);
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static time_t
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get_tstamp(const char *b)
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{
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struct stat st;
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char *eb;
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long long l;
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if (stat(b, &st) != -1)
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return (time_t)st.st_mtime;
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errno = 0;
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l = strtoll(b, &eb, 0);
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if (b == eb || *eb || errno)
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errx(EXIT_FAILURE, "Can't parse timestamp '%s'", b);
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return (time_t)l;
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}
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/*
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* Construct a FAT12, FAT16, or FAT32 file system.
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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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static const char opts[] = "@:NB:C:F:I:L:O:S:a:b:c:e:f:h:i:k:m:n:o:r:s:T:u:";
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struct msdos_options o;
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const char *fname, *dtype;
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char buf[MAXPATHLEN];
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int ch;
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memset(&o, 0, sizeof(o));
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while ((ch = getopt(argc, argv, opts)) != -1)
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switch (ch) {
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case '@':
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o.offset = argtooff(optarg, "offset");
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break;
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case 'N':
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o.no_create = 1;
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break;
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case 'B':
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o.bootstrap = optarg;
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break;
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case 'C':
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o.create_size = argtooff(optarg, "create size");
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break;
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case 'F':
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if (strcmp(optarg, "12") &&
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strcmp(optarg, "16") &&
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strcmp(optarg, "32"))
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errx(1, "%s: bad FAT type", optarg);
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o.fat_type = atoi(optarg);
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break;
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case 'I':
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o.volume_id = argto4(optarg, 0, "volume ID");
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o.volume_id_set = 1;
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break;
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case 'L':
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o.volume_label = optarg;
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break;
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case 'O':
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o.OEM_string = optarg;
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break;
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case 'S':
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o.bytes_per_sector = argto2(optarg, 1, "bytes/sector");
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break;
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case 'a':
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o.sectors_per_fat = argto4(optarg, 1, "sectors/FAT");
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break;
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case 'b':
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o.block_size = argtox(optarg, 1, "block size");
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o.sectors_per_cluster = 0;
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break;
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case 'c':
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o.sectors_per_cluster = argto1(optarg, 1, "sectors/cluster");
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o.block_size = 0;
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break;
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case 'e':
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o.directory_entries = argto2(optarg, 1, "directory entries");
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break;
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case 'f':
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o.floppy = optarg;
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break;
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case 'h':
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o.drive_heads = argto2(optarg, 1, "drive heads");
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break;
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case 'i':
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o.info_sector = argto2(optarg, 1, "info sector");
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break;
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case 'k':
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o.backup_sector = argto2(optarg, 1, "backup sector");
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break;
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case 'm':
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o.media_descriptor = argto1(optarg, 0, "media descriptor");
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o.media_descriptor_set = 1;
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break;
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case 'n':
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o.num_FAT = argto1(optarg, 1, "number of FATs");
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break;
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case 'o':
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o.hidden_sectors = argto4(optarg, 0, "hidden sectors");
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o.hidden_sectors_set = 1;
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break;
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case 'r':
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o.reserved_sectors = argto2(optarg, 1, "reserved sectors");
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break;
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case 's':
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o.size = argto4(optarg, 1, "file system size");
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break;
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case 'T':
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o.timestamp_set = 1;
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o.timestamp = get_tstamp(optarg);
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break;
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case 'u':
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o.sectors_per_track = argto2(optarg, 1, "sectors/track");
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break;
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default:
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usage();
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}
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argc -= optind;
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argv += optind;
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if (argc < 1 || argc > 2)
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usage();
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fname = *argv++;
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if (!o.create_size && !strchr(fname, '/')) {
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snprintf(buf, sizeof(buf), "%s%s", _PATH_DEV, fname);
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if (!(fname = strdup(buf)))
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err(1, NULL);
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}
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dtype = *argv;
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return !!mkfs_msdos(fname, dtype, &o);
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}
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/*
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* Convert and check a numeric option argument.
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*/
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static u_int
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argtou(const char *arg, u_int lo, u_int hi, const char *msg)
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{
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char *s;
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u_long x;
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errno = 0;
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x = strtoul(arg, &s, 0);
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if (errno || !*arg || *s || x < lo || x > hi)
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errx(1, "%s: bad %s", arg, msg);
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return x;
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}
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/*
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* Same for off_t, with optional skmgpP suffix
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*/
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static off_t
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argtooff(const char *arg, const char *msg)
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{
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char *s;
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off_t x;
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errno = 0;
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x = strtoll(arg, &s, 0);
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/* allow at most one extra char */
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if (errno || x < 0 || (s[0] && s[1]) )
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errx(1, "%s: bad %s", arg, msg);
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if (*s) { /* the extra char is the multiplier */
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switch (*s) {
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default:
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errx(1, "%s: bad %s", arg, msg);
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/* notreached */
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case 's': /* sector */
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case 'S':
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x <<= 9; /* times 512 */
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break;
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case 'k': /* kilobyte */
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case 'K':
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x <<= 10; /* times 1024 */
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break;
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case 'm': /* megabyte */
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case 'M':
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x <<= 20; /* times 1024*1024 */
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break;
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case 'g': /* gigabyte */
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case 'G':
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x <<= 30; /* times 1024*1024*1024 */
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break;
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case 'p': /* partition start */
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case 'P':
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case 'l': /* partition length */
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case 'L':
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errx(1, "%s: not supported yet %s", arg, msg);
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/* notreached */
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}
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}
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return x;
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}
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/*
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* Print usage message.
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*/
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static void
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usage(void)
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{
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fprintf(stderr,
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"usage: %s [ -options ] special [disktype]\n", getprogname());
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fprintf(stderr, "where the options are:\n");
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static struct {
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char o;
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const char *h;
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} opts[] = {
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#define AOPT(_opt, _type, _name, _min, _desc) { _opt, _desc },
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ALLOPTS
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#undef AOPT
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};
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for (size_t i = 0; i < nitems(opts); i++)
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fprintf(stderr, "\t-%c %s\n", opts[i].o, opts[i].h);
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exit(1);
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}
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