/*
* NAME: do_format()
* DESCRIPTION: call hfs_format() with necessary privileges
*/
static
hfsvol *do_format(const char *path, int partno, const char *vname)
{
hfsvol *vol = 0;
suid_enable();
if (hfs_format(path, partno, vname, 0, 0) != -1)
vol = hfs_mount(path, partno, HFS_MODE_ANY);
suid_disable();
return vol;
}
/*
** make_mac_volume: "create" an HFS volume using the ISO data
**
** The HFS volume structures are set up (but no data is written yet).
**
** ISO volumes have a allocation size of 2048 bytes - regardless
** of the size of the volume. HFS allocation size is depends on volume
** size, so we may have to update the ISO structures to add in any
** padding.
*/
int FDECL2(make_mac_volume, struct directory *, dpnt, int, start_extent)
{
char vol_name[HFS_MAX_VLEN+1]; /* Mac volume name */
hfsvol *vol; /* Mac volume */
int vlen, vblen; /* vol length (bytes, blocks) */
int Csize, lastCsize; /* allocation sizes */
int ret = 0; /* return value */
int loop = 1;
/* umount volume if we have had a previous attempt */
if (vol_save)
if (hfs_umount(vol_save, 0) < 0)
return (-1);
/* set the default clump size to the ISO block size */
lastCsize = SECTOR_SIZE;
if (verbose > 1)
fprintf(stderr, "Creating HFS Volume info\n");
/* name or copy ISO volume name to Mac Volume name */
strncpy(vol_name, hfs_volume_id ? hfs_volume_id : volume_id, HFS_MAX_VLEN);
vol_name[HFS_MAX_VLEN] = '\0';
/* get initial size of HFS volume (size of ISO volume) */
vblen = last_extent * BLK_CONV;
/* add on size of extents/catalog file, but this may mean
the allocation size will change, so loop round until the allocation
size doesn't change */
while (loop) {
hce->XTCsize = XClpSiz(vblen);
vblen = get_vol_size(vblen);
Csize = AlcSiz(vblen);
if (Csize == lastCsize) {
/* allocation size hasn't changed, so carry on */
loop = 0;
}
else {
/* allocation size has changed, so update ISO volume size */
if ((vlen = get_adj_size(Csize)) < 0) {
snprintf(hce->error, ERROR_SIZE,
"too many files for HFS volume");
return (-1);
}
vlen += V_ROUND_UP(start_extent * SECTOR_SIZE, Csize);
vblen = vlen / HFS_BLOCKSZ;
lastCsize = Csize;
}
}
/* set vlen to size in bytes */
/* vlen = hce->hfs_vol_size = vblen * HFS_BLOCKSZ; */
/* take off the label/map size */
vblen -= hce->hfs_map_size;
vlen = hce->hfs_vol_size = vblen * HFS_BLOCKSZ;
/* set the default allocation size for libhfs */
hce->Csize = Csize;
/* format and mount the "volume" */
if (hfs_format(hce, 0, vol_name) < 0)
{
snprintf(hce->error, ERROR_SIZE, "can't HFS format %s",vol_name);
return(-1);
}
/* update the ISO structures with new start extents and any padding
required */
if (Csize != SECTOR_SIZE) {
last_extent = adj_size(Csize, start_extent, hce->hfs_hdr_size + hce->hfs_map_size);
adj_size_other(dpnt);
}
if ((vol = hfs_mount(hce, 0, 0)) == 0)
{
snprintf(hce->error, ERROR_SIZE, "can't HFS mount %s",vol_name);
return(-1);
}
/* save the volume for possible later use */
vol_save = vol;
/* Recursively "copy" the files to the volume - we need to
know the first allocation block in the volume as starting blocks
of files are relative to this.
*/
ret = copy_to_mac_vol(vol, dpnt);
if (ret < 0)
return(ret);
/* make the Desktop files - I *think* this stops the Mac
rebuilding the desktop when the CD is mounted on a Mac
These will be ignored if they already exist */
if (create_dt)
ret = make_desktop(vol, last_extent*BLK_CONV);
if (ret < 0)
return(ret);
/* close the volume */
if (hfs_flush(vol) < 0)
return(-1);
/* unmount and set the start blocks for the catalog/extents files */
if (hfs_umount(vol, last_extent*BLK_CONV) < 0)
return(-1);
return(Csize);
}
