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/*
** 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 <string.h>
#include "hfs.h"
#define DB "Desktop DB"
#define DBFC "DMGR"
#define DBT "BTFL"
#define DF "Desktop DF"
#define DFT "DTFL"
/* from "data.h" - libhfs routines */
void d_putw(unsigned char *, short);
void d_putl(unsigned char *, long);
extern hce_mem *hce; /* libhfs/mkisofs extras */
int
make_desktop(hfsvol *vol, int end)
/* hfsvol *vol; /* Mac volume */
{
hfsfile *hfp; /* Mac file */
hfsdirent ent; /* Mac finderinfo */
unsigned short clps; /* clump size */
unsigned short blks; /* blocks in a clump */
unsigned char *blk; /* user data */
int i;
/* set up default directory entries - not all these fields
are needed, but we'll set them up anyway ... */
ent.rsize = 0; /* resource size == 0 */
strcpy(ent.creator, DBFC); /* creator */
strcpy(ent.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.type, ent.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_putw(blk+48, 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.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.type, DFT); /* type */
ent.dsize = 0; /* empty */
/* create DF file (if it doesn't exist) - no need to open it */
hfs_create(vol, DF, ent.type, ent.creator);
/* set DB file attributes */
if (hfs_setattr(vol, DF, &ent) < 0)
perr(hfs_error);
return 0;
}
#endif /* APPLE_HYB */
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