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Diffstat (limited to 'genisoimage/desktop.c')
| -rw-r--r-- | genisoimage/desktop.c | 180 |
1 files changed, 180 insertions, 0 deletions
diff --git a/genisoimage/desktop.c b/genisoimage/desktop.c new file mode 100644 index 0000000..51b0269 --- /dev/null +++ b/genisoimage/desktop.c @@ -0,0 +1,180 @@ +/* + * 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 */ |