109 lines
3.1 KiB
C
109 lines
3.1 KiB
C
/*-
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* Copyright (c) 2015 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by John Nemeth
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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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE 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 IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#if HAVE_NBTOOL_CONFIG_H
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#include "nbtool_config.h"
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#endif
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#include <sys/cdefs.h>
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#ifdef __RCSID
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__RCSID("$NetBSD: header.c,v 1.10 2019/03/14 10:26:10 mlelstv Exp $");
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#endif
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#include <sys/types.h>
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#include <err.h>
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#include <stddef.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 "map.h"
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#include "gpt.h"
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#include "gpt_private.h"
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static int cmd_header(gpt_t, int, char *[]);
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static const char *headerhelp[] = {
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"",
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};
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struct gpt_cmd c_header = {
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"header",
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cmd_header,
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headerhelp, __arraycount(headerhelp),
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GPT_READONLY,
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};
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#define usage() gpt_usage(NULL, &c_header)
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static int
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header(gpt_t gpt)
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{
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unsigned int revision;
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map_t map;
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struct gpt_hdr *hdr;
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char buf[128];
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gpt_show_num("Media Size", (uintmax_t)gpt->mediasz);
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printf("Sector Size: %u\n", gpt->secsz);
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gpt_show_num("Number of Sectors",
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(uintmax_t)(gpt->mediasz / gpt->secsz));
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printf("\nHeader Information:\n");
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map = map_find(gpt, MAP_TYPE_PRI_GPT_HDR);
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if (map == NULL) {
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printf("- GPT Header not found\n");
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return -1;
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}
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hdr = map->map_data;
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revision = le32toh(hdr->hdr_revision);
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printf("- GPT Header Revision: %u.%u\n", revision >> 16,
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revision & 0xffff);
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gpt_show_num("- First Data Sector", le64toh(hdr->hdr_lba_start));
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gpt_show_num("- Last Data Sector", le64toh(hdr->hdr_lba_end));
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gpt_uuid_snprintf(buf, sizeof(buf), "%d", hdr->hdr_guid);
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printf("- Media GUID: %s\n", buf);
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printf("- Number of GPT Entries: %u\n", le32toh(hdr->hdr_entries));
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return 0;
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}
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static int
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cmd_header(gpt_t gpt, int argc, char *argv[])
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{
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if (argc != optind)
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return usage();
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return header(gpt);
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}
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