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/*
* This file has been modified for the cdrkit suite.
*
* The behaviour and appearence of the program code below can differ to a major
* extent from the version distributed by the original author(s).
*
* For details, see Changelog file distributed with the cdrkit package. If you
* received this file from another source then ask the distributing person for
* a log of modifications.
*
*/
/* @(#)desktop.c 1.6 04/03/04 joerg, Copyright 1997, 1998, 1999, 2000 James Pearson */
/*
* Copyright (c) 1997, 1998, 1999, 2000 James Pearson
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*
* make_desktop: create "Desktop DB" and "Desktop DF" files.
*
* These are set up to prevent the Mac "rebuilding the desktop"
* when the CD is inserted ???
*
* I don't know if these files should be populated, but I've just
* created these files in their initial states:
*
* Desktop DB: Initial size == volume's clump size
* first block contents found by using od ...
* rest of file seems to be padding
* No resource fork
*
* Desktop DF: Empty
*
* If the files already exist, then set correct type/creator/flags
*
* James Pearson 11/8/97
* Adapted from mkhfs routines for mkhybrid
*/
#ifdef APPLE_HYB
#include <mconfig.h>
#include "genisoimage.h"
#define DB "Desktop DB"
#define DBFC "DMGR"
#define DBT "BTFL"
#define DF "Desktop DF"
#define DFT "DTFL"
/*
* from "data.h" - libhfs routines
*/
extern void d_putw(unsigned char *, short);
extern void d_putl(unsigned char *, long);
int make_desktop(hfsvol *vol, int end);
extern hce_mem *hce; /* libhfs/genisoimage extras */
int
make_desktop(hfsvol *vol, int end)
{
hfsfile *hfp; /* Mac file */
hfsdirent ent; /* Mac finderinfo */
unsigned long clps; /* clump size */
unsigned short blks; /* blocks in a clump */
unsigned char *blk; /* user data */
/*
* set up default directory entries - not all these fields are needed,
* but we'll set them up anyway ...
* First do a memset because there was a report about randomly
* changing Desktop DB/DF entries...
*/
memset(&ent, 0, sizeof (hfsdirent)); /* First clear all ... */
ent.u.file.rsize = 0; /* resource size == 0 */
strcpy(ent.u.file.creator, DBFC); /* creator */
strcpy(ent.u.file.type, DBT); /* type */
ent.crdate = ent.mddate = time(0); /* date is now */
ent.fdflags = HFS_FNDR_ISINVISIBLE; /* invisible files */
/*
* clear the DB file
*/
blk = hce->hfs_ce + hce->hfs_ce_size * HFS_BLOCKSZ;
blks = hce->hfs_dt_size;
clps = blks * HFS_BLOCKSZ;
memset(blk, 0, clps);
/*
* create "Desktop DB" (if it doesn't exist)
*/
if (hfs_create(vol, DB, ent.u.file.type, ent.u.file.creator) == 0) {
/*
* DB file size from hce_mem info
* set up "Desktop DB" data - following found by od'ing the
* "Desktop DB" file
*/
d_putw(blk + 8, 0x100);
d_putw(blk + 10, 0x3);
d_putw(blk + 32, 0x200);
d_putw(blk + 34, 0x25);
d_putl(blk + 36, blks);
d_putl(blk + 40, blks - 1);
d_putl(blk + 46, clps);
d_putw(blk + 50, 0xff);
d_putw(blk + 120, 0x20a);
d_putw(blk + 122, 0x100);
d_putw(blk + 248, 0x8000);
d_putl(blk + 504, 0x1f800f8);
d_putl(blk + 508, 0x78000e);
/* entries for "Desktop DB" */
ent.u.file.dsize = clps; /* size = clump size */
/* open file */
if ((hfp = hfs_open(vol, DB)) == 0)
perr(hfs_error);
/* "write" file */
write_fork(hfp, clps);
/* set DB file attributes */
if (hfs_fsetattr(hfp, &ent) < 0)
perr(hfs_error);
/* find the real start of the file */
end += hce->hfs_ce_size;
/* close DB file */
if (hfs_close(hfp, end, 0) < 0)
perr(hfs_error);
} else {
/*
* if it already exists, then make sure it has the correct
* type/creator and flags
*/
if (hfs_setattr(vol, DB, &ent) < 0)
perr(hfs_error);
}
/* setup "Desktop DF" file as an empty file */
strcpy(ent.u.file.type, DFT); /* type */
ent.u.file.dsize = 0; /* empty */
/* create DF file (if it doesn't exist) - no need to open it */
hfs_create(vol, DF, ent.u.file.type, ent.u.file.creator);
/* set DB file attributes */
if (hfs_setattr(vol, DF, &ent) < 0)
perr(hfs_error);
return (0);
}
#endif /* APPLE_HYB */
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