mirror of
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770 lines
14 KiB
C
770 lines
14 KiB
C
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/*
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* hfsutils - tools for reading and writing Macintosh HFS volumes
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* Copyright (C) 1996-1998 Robert Leslie
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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* $Id: copyin.c,v 1.8 1998/11/02 22:08:25 rob Exp $
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*/
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# ifdef HAVE_CONFIG_H
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# include "config.h"
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# endif
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# ifdef HAVE_FCNTL_H
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# include <fcntl.h>
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# else
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int open(const char *, int, ...);
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# endif
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# ifdef HAVE_UNISTD_H
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# include <unistd.h>
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# else
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int dup(int);
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# endif
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# include <stdlib.h>
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# include <string.h>
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# include <errno.h>
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# include "hfs.h"
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# include "data.h"
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# include "copyin.h"
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# include "charset.h"
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# include "binhex.h"
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# include "crc.h"
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const char *cpi_error = "no error";
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extern int errno;
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# define ERROR(code, str) (cpi_error = (str), errno = (code))
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# define MACB_BLOCKSZ 128
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# define TEXT_TYPE "TEXT"
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# define TEXT_CREA "UNIX"
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# define RAW_TYPE "????"
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# define RAW_CREA "UNIX"
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/* Copy routines =========================================================== */
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/*
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* NAME: fork->macb()
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* DESCRIPTION: copy a single fork for MacBinary II
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*/
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static
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int fork_macb(int ifile, hfsfile *ofile, unsigned long size)
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{
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char buf[HFS_BLOCKSZ * 4];
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unsigned long chunk, bytes;
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while (size)
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{
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chunk = (size < sizeof(buf)) ?
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(size + (MACB_BLOCKSZ - 1)) & ~(MACB_BLOCKSZ - 1) : sizeof(buf);
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bytes = read(ifile, buf, chunk);
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if (bytes == (unsigned long) -1)
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{
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ERROR(errno, "error reading data");
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return -1;
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}
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else if (bytes != chunk)
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{
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ERROR(EIO, "read incomplete chunk");
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return -1;
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}
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chunk = (size > bytes) ? bytes : size;
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bytes = hfs_write(ofile, buf, chunk);
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if (bytes == (unsigned long) -1)
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{
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ERROR(errno, hfs_error);
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return -1;
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}
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else if (bytes != chunk)
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{
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ERROR(EIO, "wrote incomplete chunk");
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return -1;
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}
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size -= chunk;
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}
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return 0;
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}
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/*
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* NAME: do_macb()
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* DESCRIPTION: perform copy using MacBinary II translation
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*/
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static
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int do_macb(int ifile, hfsfile *ofile,
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unsigned long dsize, unsigned long rsize)
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{
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if (hfs_setfork(ofile, 0) == -1)
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{
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ERROR(errno, hfs_error);
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return -1;
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}
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if (fork_macb(ifile, ofile, dsize) == -1)
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return -1;
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if (hfs_setfork(ofile, 1) == -1)
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{
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ERROR(errno, hfs_error);
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return -1;
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}
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if (fork_macb(ifile, ofile, rsize) == -1)
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return -1;
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return 0;
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}
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/*
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* NAME: fork->binh()
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* DESCRIPTION: copy a single fork for BinHex
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*/
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static
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int fork_binh(hfsfile *ofile, unsigned long size)
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{
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char buf[HFS_BLOCKSZ * 4];
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long chunk, bytes;
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while (size)
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{
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chunk = (size > sizeof(buf)) ? sizeof(buf) : size;
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bytes = bh_read(buf, chunk);
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if (bytes == -1)
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{
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ERROR(errno, bh_error);
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return -1;
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}
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else if (bytes != chunk)
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{
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ERROR(EIO, "read incomplete chunk");
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return -1;
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}
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bytes = hfs_write(ofile, buf, chunk);
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if (bytes == -1)
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{
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ERROR(errno, hfs_error);
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return -1;
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}
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else if (bytes != chunk)
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{
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ERROR(EIO, "wrote incomplete chunk");
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return -1;
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}
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size -= chunk;
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}
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if (bh_readcrc() == -1)
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{
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ERROR(errno, bh_error);
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return -1;
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}
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return 0;
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}
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/*
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* NAME: do_binh()
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* DESCRIPTION: perform copy using BinHex translation
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*/
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static
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int do_binh(hfsfile *ofile, unsigned long dsize, unsigned long rsize)
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{
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if (hfs_setfork(ofile, 0) == -1)
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{
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ERROR(errno, hfs_error);
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return -1;
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}
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if (fork_binh(ofile, dsize) == -1)
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return -1;
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if (hfs_setfork(ofile, 1) == -1)
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{
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ERROR(errno, hfs_error);
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return -1;
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}
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if (fork_binh(ofile, rsize) == -1)
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return -1;
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return 0;
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}
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/*
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* NAME: do_text()
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* DESCRIPTION: perform copy using text translation
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*/
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static
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int do_text(int ifile, hfsfile *ofile)
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{
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char buf[HFS_BLOCKSZ * 4], *ptr;
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long chunk, bytes;
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int len;
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while (1)
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{
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chunk = read(ifile, buf, sizeof(buf));
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if (chunk == -1)
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{
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ERROR(errno, "error reading source file");
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return -1;
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}
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else if (chunk == 0)
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break;
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for (ptr = buf; ptr < buf + chunk; ++ptr)
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{
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if (*ptr == '\n')
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*ptr = '\r';
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}
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len = chunk;
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ptr = cs_macroman(buf, &len);
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if (ptr == 0)
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{
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ERROR(ENOMEM, 0);
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return -1;
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}
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bytes = hfs_write(ofile, ptr, len);
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free(ptr);
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if (bytes == -1)
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{
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ERROR(errno, hfs_error);
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return -1;
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}
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else if (bytes != len)
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{
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ERROR(EIO, "wrote incomplete chunk");
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return -1;
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}
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}
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return 0;
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}
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/*
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* NAME: do_raw()
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* DESCRIPTION: perform copy using no translation
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*/
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static
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int do_raw(int ifile, hfsfile *ofile)
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{
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char buf[HFS_BLOCKSZ * 4];
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long chunk, bytes;
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while (1)
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{
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chunk = read(ifile, buf, sizeof(buf));
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if (chunk == -1)
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{
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ERROR(errno, "error reading source file");
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return -1;
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}
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else if (chunk == 0)
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break;
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bytes = hfs_write(ofile, buf, chunk);
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if (bytes == -1)
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{
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ERROR(errno, hfs_error);
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return -1;
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}
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else if (bytes != chunk)
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{
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ERROR(EIO, "wrote incomplete chunk");
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return -1;
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}
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}
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return 0;
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}
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/* Utility Routines ======================================================== */
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/*
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* NAME: opensrc()
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* DESCRIPTION: open the source file; set hint for destination filename
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*/
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static
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int opensrc(const char *srcname, const char **dsthint, const char *ext,
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int binary)
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{
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int fd, len;
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static char name[HFS_MAX_FLEN + 1];
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const char *cptr;
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char *ptr;
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if (strcmp(srcname, "-") == 0)
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{
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fd = dup(STDIN_FILENO);
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srcname = "";
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}
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else
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fd = open(srcname, O_RDONLY);
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if (fd == -1)
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{
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ERROR(errno, "error opening source file");
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return -1;
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}
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cptr = strrchr(srcname, '/');
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if (cptr == 0)
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cptr = srcname;
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else
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++cptr;
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if (ext == 0)
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len = strlen(cptr);
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else
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{
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ext = strstr(cptr, ext);
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if (ext == 0)
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len = strlen(cptr);
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else
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len = ext - cptr;
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}
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if (len > HFS_MAX_FLEN)
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len = HFS_MAX_FLEN;
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memcpy(name, cptr, len);
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name[len] = 0;
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for (ptr = name; *ptr; ++ptr)
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{
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switch (*ptr)
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{
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case ':':
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*ptr = '-';
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break;
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case '_':
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*ptr = ' ';
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break;
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}
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}
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*dsthint = name;
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return fd;
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}
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/*
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* NAME: opendst()
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* DESCRIPTION: open the destination file
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*/
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static
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hfsfile *opendst(hfsvol *vol, const char *dstname, const char *hint,
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const char *type, const char *creator)
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{
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hfsdirent ent;
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hfsfile *file;
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unsigned long cwd;
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if (hfs_stat(vol, dstname, &ent) != -1 &&
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(ent.flags & HFS_ISDIR))
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{
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cwd = hfs_getcwd(vol);
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if (hfs_setcwd(vol, ent.cnid) == -1)
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{
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ERROR(errno, hfs_error);
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return 0;
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}
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dstname = hint;
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}
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hfs_delete(vol, dstname);
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file = hfs_create(vol, dstname, type, creator);
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if (file == 0)
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{
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ERROR(errno, hfs_error);
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if (dstname == hint)
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hfs_setcwd(vol, cwd);
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return 0;
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}
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if (dstname == hint)
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{
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if (hfs_setcwd(vol, cwd) == -1)
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{
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ERROR(errno, hfs_error);
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hfs_close(file);
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return 0;
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}
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}
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return file;
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}
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/*
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* NAME: closefiles()
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* DESCRIPTION: close source and destination files
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*/
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static
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void closefiles(int ifile, hfsfile *ofile, int *result)
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{
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if (ofile && hfs_close(ofile) == -1 && *result == 0)
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{
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ERROR(errno, hfs_error);
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*result = -1;
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}
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if (close(ifile) == -1 && *result == 0)
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{
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ERROR(errno, "error closing source file");
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*result = -1;
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}
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}
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/* Interface Routines ====================================================== */
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/*
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* NAME: cpi->macb()
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* DESCRIPTION: copy a UNIX file to an HFS file using MacBinary II translation
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*/
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int cpi_macb(const char *srcname, hfsvol *vol, const char *dstname)
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{
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int ifile, result = 0;
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hfsfile *ofile;
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hfsdirent ent;
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const char *dsthint;
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char type[5], creator[5];
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unsigned char buf[MACB_BLOCKSZ];
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unsigned short crc;
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unsigned long dsize, rsize;
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ifile = opensrc(srcname, &dsthint, ".bin", 1);
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if (ifile == -1)
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return -1;
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if (read(ifile, buf, MACB_BLOCKSZ) < MACB_BLOCKSZ)
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{
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ERROR(errno, "error reading MacBinary file header");
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close(ifile);
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return -1;
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}
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if (buf[0] != 0 || buf[74] != 0)
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{
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ERROR(EINVAL, "invalid MacBinary file header");
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close(ifile);
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return -1;
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}
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crc = d_getuw(&buf[124]);
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if (crc_macb(buf, 124, 0x0000) != crc)
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{
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/* (buf[82] == 0) => MacBinary I? */
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ERROR(EINVAL, "unknown, unsupported, or corrupt MacBinary file");
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close(ifile);
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return -1;
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}
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if (buf[123] > 129)
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{
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ERROR(EINVAL, "unsupported MacBinary file version");
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close(ifile);
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return -1;
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}
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||
|
if (buf[1] < 1 || buf[1] > 63 ||
|
||
|
buf[2 + buf[1]] != 0)
|
||
|
{
|
||
|
ERROR(EINVAL, "invalid MacBinary file header (bad file name)");
|
||
|
|
||
|
close(ifile);
|
||
|
return -1;
|
||
|
}
|
||
|
|
||
|
dsize = d_getul(&buf[83]);
|
||
|
rsize = d_getul(&buf[87]);
|
||
|
|
||
|
if (dsize > 0x7fffffff || rsize > 0x7fffffff)
|
||
|
{
|
||
|
ERROR(EINVAL, "invalid MacBinary file header (bad file length)");
|
||
|
|
||
|
close(ifile);
|
||
|
return -1;
|
||
|
}
|
||
|
|
||
|
dsthint = (char *) &buf[2];
|
||
|
|
||
|
memcpy(type, &buf[65], 4);
|
||
|
memcpy(creator, &buf[69], 4);
|
||
|
type[4] = creator[4] = 0;
|
||
|
|
||
|
ofile = opendst(vol, dstname, dsthint, type, creator);
|
||
|
if (ofile == 0)
|
||
|
{
|
||
|
close(ifile);
|
||
|
return -1;
|
||
|
}
|
||
|
|
||
|
result = do_macb(ifile, ofile, dsize, rsize);
|
||
|
|
||
|
if (result == 0 && hfs_fstat(ofile, &ent) == -1)
|
||
|
{
|
||
|
ERROR(errno, hfs_error);
|
||
|
result = -1;
|
||
|
}
|
||
|
|
||
|
ent.fdflags = (buf[73] << 8 | buf[101]) &
|
||
|
~(HFS_FNDR_ISONDESK | HFS_FNDR_HASBEENINITED | HFS_FNDR_RESERVED);
|
||
|
|
||
|
ent.crdate = d_ltime(d_getul(&buf[91]));
|
||
|
ent.mddate = d_ltime(d_getul(&buf[95]));
|
||
|
|
||
|
if (result == 0 && hfs_fsetattr(ofile, &ent) == -1)
|
||
|
{
|
||
|
ERROR(errno, hfs_error);
|
||
|
result = -1;
|
||
|
}
|
||
|
|
||
|
closefiles(ifile, ofile, &result);
|
||
|
|
||
|
return result;
|
||
|
}
|
||
|
|
||
|
/*
|
||
|
* NAME: binhx()
|
||
|
* DESCRIPTION: auxiliary BinHex routine
|
||
|
*/
|
||
|
static
|
||
|
int binhx(char *fname, char *type, char *creator, short *fdflags,
|
||
|
unsigned long *dsize, unsigned long *rsize)
|
||
|
{
|
||
|
int len;
|
||
|
unsigned char byte, word[2], lword[4];
|
||
|
|
||
|
if (bh_read(&byte, 1) < 1)
|
||
|
{
|
||
|
ERROR(errno, bh_error);
|
||
|
return -1;
|
||
|
}
|
||
|
|
||
|
len = (unsigned char) byte;
|
||
|
|
||
|
if (len < 1 || len > HFS_MAX_FLEN)
|
||
|
{
|
||
|
ERROR(EINVAL, "invalid BinHex file header (bad file name)");
|
||
|
return -1;
|
||
|
}
|
||
|
|
||
|
if (bh_read(fname, len + 1) < len + 1)
|
||
|
{
|
||
|
ERROR(errno, bh_error);
|
||
|
return -1;
|
||
|
}
|
||
|
|
||
|
if (fname[len] != 0)
|
||
|
{
|
||
|
ERROR(EINVAL, "invalid BinHex file header (bad file name)");
|
||
|
return -1;
|
||
|
}
|
||
|
|
||
|
if (bh_read(type, 4) < 4 ||
|
||
|
bh_read(creator, 4) < 4 ||
|
||
|
bh_read(word, 2) < 2)
|
||
|
{
|
||
|
ERROR(errno, bh_error);
|
||
|
return -1;
|
||
|
}
|
||
|
*fdflags = d_getsw(word);
|
||
|
|
||
|
if (bh_read(lword, 4) < 4)
|
||
|
{
|
||
|
ERROR(errno, bh_error);
|
||
|
return -1;
|
||
|
}
|
||
|
*dsize = d_getul(lword);
|
||
|
|
||
|
if (bh_read(lword, 4) < 4)
|
||
|
{
|
||
|
ERROR(errno, bh_error);
|
||
|
return -1;
|
||
|
}
|
||
|
*rsize = d_getul(lword);
|
||
|
|
||
|
if (*dsize > 0x7fffffff || *rsize > 0x7fffffff)
|
||
|
{
|
||
|
ERROR(EINVAL, "invalid BinHex file header (bad file length)");
|
||
|
return -1;
|
||
|
}
|
||
|
|
||
|
if (bh_readcrc() == -1)
|
||
|
{
|
||
|
ERROR(errno, bh_error);
|
||
|
return -1;
|
||
|
}
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
/*
|
||
|
* NAME: cpi->binh()
|
||
|
* DESCRIPTION: copy a UNIX file to an HFS file using BinHex translation
|
||
|
*/
|
||
|
int cpi_binh(const char *srcname, hfsvol *vol, const char *dstname)
|
||
|
{
|
||
|
int ifile, result;
|
||
|
hfsfile *ofile;
|
||
|
hfsdirent ent;
|
||
|
const char *dsthint;
|
||
|
char fname[HFS_MAX_FLEN + 1], type[5], creator[5];
|
||
|
short fdflags;
|
||
|
unsigned long dsize, rsize;
|
||
|
|
||
|
ifile = opensrc(srcname, &dsthint, ".hqx", 0);
|
||
|
if (ifile == -1)
|
||
|
return -1;
|
||
|
|
||
|
if (bh_open(ifile) == -1)
|
||
|
{
|
||
|
ERROR(errno, bh_error);
|
||
|
|
||
|
close(ifile);
|
||
|
return -1;
|
||
|
}
|
||
|
|
||
|
if (binhx(fname, type, creator, &fdflags, &dsize, &rsize) == -1)
|
||
|
{
|
||
|
bh_close();
|
||
|
close(ifile);
|
||
|
return -1;
|
||
|
}
|
||
|
|
||
|
dsthint = fname;
|
||
|
|
||
|
ofile = opendst(vol, dstname, dsthint, type, creator);
|
||
|
if (ofile == 0)
|
||
|
{
|
||
|
bh_close();
|
||
|
close(ifile);
|
||
|
return -1;
|
||
|
}
|
||
|
|
||
|
result = do_binh(ofile, dsize, rsize);
|
||
|
|
||
|
if (bh_close() == -1 && result == 0)
|
||
|
{
|
||
|
ERROR(errno, bh_error);
|
||
|
result = -1;
|
||
|
}
|
||
|
|
||
|
if (result == 0 && hfs_fstat(ofile, &ent) == -1)
|
||
|
{
|
||
|
ERROR(errno, hfs_error);
|
||
|
result = -1;
|
||
|
}
|
||
|
|
||
|
ent.fdflags = fdflags &
|
||
|
~(HFS_FNDR_ISONDESK | HFS_FNDR_HASBEENINITED | HFS_FNDR_ISINVISIBLE);
|
||
|
|
||
|
if (result == 0 && hfs_fsetattr(ofile, &ent) == -1)
|
||
|
{
|
||
|
ERROR(errno, hfs_error);
|
||
|
result = -1;
|
||
|
}
|
||
|
|
||
|
closefiles(ifile, ofile, &result);
|
||
|
|
||
|
return result;
|
||
|
}
|
||
|
|
||
|
/*
|
||
|
* NAME: cpi->text()
|
||
|
* DESCRIPTION: copy a UNIX file to an HFS file using text translation
|
||
|
*/
|
||
|
int cpi_text(const char *srcname, hfsvol *vol, const char *dstname)
|
||
|
{
|
||
|
int ifile, result = 0;
|
||
|
hfsfile *ofile;
|
||
|
const char *dsthint;
|
||
|
|
||
|
ifile = opensrc(srcname, &dsthint, ".txt", 0);
|
||
|
if (ifile == -1)
|
||
|
return -1;
|
||
|
|
||
|
ofile = opendst(vol, dstname, dsthint, TEXT_TYPE, TEXT_CREA);
|
||
|
if (ofile == 0)
|
||
|
{
|
||
|
close(ifile);
|
||
|
return -1;
|
||
|
}
|
||
|
|
||
|
result = do_text(ifile, ofile);
|
||
|
|
||
|
closefiles(ifile, ofile, &result);
|
||
|
|
||
|
return result;
|
||
|
}
|
||
|
|
||
|
/*
|
||
|
* NAME: cpi->raw()
|
||
|
* DESCRIPTION: copy a UNIX file to the data fork of an HFS file
|
||
|
*/
|
||
|
int cpi_raw(const char *srcname, hfsvol *vol, const char *dstname)
|
||
|
{
|
||
|
int ifile, result = 0;
|
||
|
hfsfile *ofile;
|
||
|
const char *dsthint;
|
||
|
|
||
|
ifile = opensrc(srcname, &dsthint, 0, 1);
|
||
|
if (ifile == -1)
|
||
|
return -1;
|
||
|
|
||
|
ofile = opendst(vol, dstname, dsthint, RAW_TYPE, RAW_CREA);
|
||
|
if (ofile == 0)
|
||
|
{
|
||
|
close(ifile);
|
||
|
return -1;
|
||
|
}
|
||
|
|
||
|
result = do_raw(ifile, ofile);
|
||
|
|
||
|
closefiles(ifile, ofile, &result);
|
||
|
|
||
|
return result;
|
||
|
}
|