159 lines
4.3 KiB
C
159 lines
4.3 KiB
C
/* $NetBSD: mkboothfs.c,v 1.1 2006/09/17 03:56:03 tsutsui Exp $ */
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/*-
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* Copyright (C) 2005, 2006 Izumi Tsutsui
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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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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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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#if HAVE_NBTOOL_CONFIG_H
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#include "nbtool_config.h"
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#include "../../sys/sys/bootblock.h"
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#else
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#include <sys/bootblock.h>
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#endif
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#include <err.h>
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#include <fcntl.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 <sys/stat.h>
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#include <sys/types.h>
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#define BSIZE 512
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#define BUFSIZE (8 * 1024)
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static void usage(void);
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/*
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* Creates a file for use by mkisofs's -boot-hfs-file.
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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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char *boothfs;
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int ifd, ofd;
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struct apple_drvr_map dm;
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struct apple_part_map_entry pme;
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char *buf;
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if (argc != 2)
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usage();
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boothfs = argv[1];
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buf = malloc(BUFSIZE);
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if (buf == NULL)
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err(1, "malloc write buffer");
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/* create output boot-hfs-file */
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if ((ofd = open(boothfs, O_CREAT | O_TRUNC | O_WRONLY, 0644)) == -1)
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err(1, "create output boot-hfs-file `%s'", boothfs);
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/*
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* Populate 18 byte driver map header in the first 512 byte block
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*/
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memset(&dm, 0, sizeof dm);
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dm.sbSig = htobe16(APPLE_DRVR_MAP_MAGIC);
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dm.sbBlockSize = htobe16(2048);
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dm.sbBlkCount = htobe32(0); /* XXX */
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dm.sbDevType = htobe16(1);
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dm.sbDevID = htobe16(1);
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dm.sbData = 0;
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dm.sbDrvrCount = 0;
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memset(buf, 0, BSIZE);
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memcpy(buf, &dm, sizeof(dm));
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write(ofd, buf, BSIZE);
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/*
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* Write 2048-byte/sector map in the second 512 byte block
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*/
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memset(&pme, 0, sizeof(pme));
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pme.pmSig = htobe16(APPLE_PART_MAP_ENTRY_MAGIC);
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pme.pmMapBlkCnt = htobe32(1);
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pme.pmPyPartStart = htobe32(1);
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pme.pmPartBlkCnt = htobe32(1);
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pme.pmDataCnt = htobe32(1);
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strlcpy(pme.pmPartName, "NetBSD_BootBlock", sizeof(pme.pmPartName));
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strlcpy(pme.pmPartType, "Apple_Driver", sizeof(pme.pmPartType));
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pme.pmPartStatus = htobe32(0x3b);
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pme.pmBootSize = htobe32(MACPPC_BOOT_BLOCK_MAX_SIZE);
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pme.pmBootLoad = htobe32(0x4000);
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pme.pmBootEntry = htobe32(0x4000);
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strlcpy(pme.pmProcessor, "PowerPC", sizeof(pme.pmProcessor));
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memset(buf, 0, BSIZE);
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memcpy(buf, &pme, sizeof(pme));
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write(ofd, buf, BSIZE);
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/*
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* Write 512-byte/sector map in the third 512 byte block
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*/
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pme.pmPyPartStart = htobe32(4);
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pme.pmPartBlkCnt = htobe32(4);
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pme.pmDataCnt = htobe32(4);
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memset(buf, 0, BSIZE);
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memcpy(buf, &pme, sizeof(pme));
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write(ofd, buf, BSIZE);
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/*
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* Placeholder for 2048 byte padding
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*/
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memset(buf, 0, BSIZE);
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write(ofd, buf, BSIZE);
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/*
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* Placeholder for NetBSD bootblock
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*/
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memset(buf, 0, MACPPC_BOOT_BLOCK_MAX_SIZE);
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write(ofd, buf, MACPPC_BOOT_BLOCK_MAX_SIZE);
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/*
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* Prepare HFS "bootblock"; enough to pacify mkisofs.
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*/
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memset(buf, 0, BSIZE * 2);
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buf[0] = 0x4c;
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buf[1] = 0x4b;
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if (write(ofd, buf, BSIZE * 2) != BSIZE * 2)
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err(1, "write boot-hfs-file `%s'", boothfs);
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free(buf);
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close(ofd);
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return 0;
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}
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static void
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usage(void)
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{
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const char *prog;
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prog = getprogname();
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fprintf(stderr, "usage: %s boot-hfs-file\n", prog);
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exit(1);
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}
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