storage::storage(generic_file & f, const infinint & size)
{
U_32 lu, tmp;
make_alloc(size, first, last);
struct cellule *ptr = first;
try
{
while(ptr != NULL)
{
lu = 0;
do
{
tmp = f.read(((char *)(ptr->data))+lu, ptr->size - lu);
lu += tmp;
}
while(lu < ptr->size && tmp != 0);
if(lu < ptr->size)
throw Erange("storage::storage", gettext("Not enough data to initialize storage field"));
ptr = ptr->next;
}
}
catch(...)
{
detruit(first);
first = NULL;
last = NULL;
throw;
}
}
void slice_layout::read(generic_file & f)
{
char tmp;
first_size.read(f);
other_size.read(f);
first_slice_header.read(f);
other_slice_header.read(f);
if(f.read(&tmp , 1) == 1)
{
switch(tmp)
{
case OLDER_THAN_V8:
older_sar_than_v8 = true;
break;
case V8:
older_sar_than_v8 = false;
break;
default:
throw SRC_BUG;
}
}
else
throw Erange("slice_layout::read", gettext("Missing data while reading slice_layout object"));
}
fsa_bool::fsa_bool(generic_file & f, fsa_family fam, fsa_nature nat):
filesystem_specific_attribute(f, fam, nat)
{
char ch;
S_I lu = f.read(&ch, 1);
if(lu == 1)
{
switch(ch)
{
case 'T':
val = true;
break;
case 'F':
val = false;
break;
default:
throw Edata(gettext("Unexepected value for boolean FSA, data corruption may have occurred"));
}
}
else
throw Erange("fsa_bool::fsa_bool", string(gettext("Error while reading FSA: ")) + strerror(errno));
}
void filesystem_specific_attribute_list::read(generic_file & f)
{
infinint size = infinint(f);
U_I sub_size;
do
{
sub_size = 0;
size.unstack(sub_size);
if(size > 0 && sub_size == 0)
throw SRC_BUG;
while(sub_size > 0)
{
char buffer[FAM_SIG_WIDTH + NAT_SIG_WIDTH + 1];
fsa_family fam;
fsa_nature nat;
filesystem_specific_attribute *ptr = NULL;
f.read(buffer, FAM_SIG_WIDTH);
buffer[FAM_SIG_WIDTH] = '\0';
fam = signature_to_family(buffer);
f.read(buffer, NAT_SIG_WIDTH);
buffer[NAT_SIG_WIDTH] = '\0';
nat = signature_to_nature(buffer);
switch(nat)
{
case fsan_unset:
throw SRC_BUG;
case fsan_creation_date:
ptr = new (nothrow) fsa_infinint(f, fam, nat);
break;
case fsan_append_only:
case fsan_compressed:
case fsan_no_dump:
case fsan_immutable:
case fsan_data_journalling:
case fsan_secure_deletion:
case fsan_no_tail_merging:
case fsan_undeletable:
case fsan_noatime_update:
case fsan_synchronous_directory:
case fsan_synchronous_update:
case fsan_top_of_dir_hierarchy:
ptr = new (nothrow) fsa_bool(f, fam, nat);
break;
default:
throw SRC_BUG;
}
if(ptr == NULL)
throw Ememory("filesystem_specific_attribute_list::read");
fsa.push_back(ptr);
ptr = NULL;
--sub_size;
}
}
while(size > 0);
update_familes();
sort_fsa();
}
void compressor::lzo_block_header::set_from(generic_file & f)
{
f.read(&type, 1);
size.read(f);
}