a82e3a8b24
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.
82 lines
2.6 KiB
C
82 lines
2.6 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2004 Pawel Jakub Dawidek <pjd@FreeBSD.org>
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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 AUTHORS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/malloc.h>
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#include <geom/geom.h>
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#include <geom/label/g_label.h>
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#define G_LABEL_ISO9660_DIR "iso9660"
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#define ISO9660_MAGIC "\x01" "CD001" "\x01\x00"
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#define ISO9660_OFFSET 0x8000
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#define VOLUME_LEN 32
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static void
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g_label_iso9660_taste(struct g_consumer *cp, char *label, size_t size)
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{
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struct g_provider *pp;
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char *sector, *volume;
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g_topology_assert_not();
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pp = cp->provider;
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label[0] = '\0';
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if ((ISO9660_OFFSET % pp->sectorsize) != 0)
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return;
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sector = (char *)g_read_data(cp, ISO9660_OFFSET, pp->sectorsize,
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NULL);
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if (sector == NULL)
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return;
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if (bcmp(sector, ISO9660_MAGIC, sizeof(ISO9660_MAGIC) - 1) != 0) {
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g_free(sector);
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return;
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}
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G_LABEL_DEBUG(1, "ISO9660 file system detected on %s.", pp->name);
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volume = sector + 0x28;
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bzero(label, size);
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strlcpy(label, volume, MIN(size, VOLUME_LEN));
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g_free(sector);
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g_label_rtrim(label, size);
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}
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struct g_label_desc g_label_iso9660 = {
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.ld_taste = g_label_iso9660_taste,
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.ld_dir = G_LABEL_ISO9660_DIR,
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.ld_enabled = 1
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};
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G_LABEL_INIT(iso9660, g_label_iso9660, "Create device nodes for ISO9660 volume names");
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