void fix_file_sizes(FILE *outfile, const long offset, struct cpk_file *file, int i)
{
long file_size_off = query_utf_offset(outfile, offset, file[i].index, "FileSize");
long extract_size_off = query_utf_offset(outfile, offset, file[i].index, "ExtractSize");
unsigned char size_buf[4];
write_32_be(file[i].new_size, size_buf);
replace_data(outfile, file_size_off, size_buf, 4);
replace_data(outfile, extract_size_off, size_buf, 4);
printf("%s changed in size by %ld bytes\n", file[i].filename, (long)(file[i].new_size-file[i].orig_size));
}
enum TDB_ERROR tdb_store(struct tdb_context *tdb,
struct tdb_data key, struct tdb_data dbuf, int flag)
{
struct hash_info h;
tdb_off_t off;
tdb_len_t old_room = 0;
struct tdb_used_record rec;
enum TDB_ERROR ecode;
off = find_and_lock(tdb, key, F_WRLCK, &h, &rec, NULL);
if (TDB_OFF_IS_ERR(off)) {
return tdb->last_error = off;
}
/* Now we have lock on this hash bucket. */
if (flag == TDB_INSERT) {
if (off) {
ecode = TDB_ERR_EXISTS;
goto out;
}
} else {
if (off) {
old_room = rec_data_length(&rec)
+ rec_extra_padding(&rec);
if (old_room >= dbuf.dsize) {
/* Can modify in-place. Easy! */
ecode = update_rec_hdr(tdb, off,
key.dsize, dbuf.dsize,
&rec, h.h);
if (ecode != TDB_SUCCESS) {
goto out;
}
ecode = update_data(tdb,
off + sizeof(rec)
+ key.dsize, dbuf,
old_room - dbuf.dsize);
if (ecode != TDB_SUCCESS) {
goto out;
}
tdb_unlock_hashes(tdb, h.hlock_start,
h.hlock_range, F_WRLCK);
return tdb->last_error = TDB_SUCCESS;
}
} else {
if (flag == TDB_MODIFY) {
/* if the record doesn't exist and we
are in TDB_MODIFY mode then we should fail
the store */
ecode = TDB_ERR_NOEXIST;
goto out;
}
}
}
/* If we didn't use the old record, this implies we're growing. */
ecode = replace_data(tdb, &h, key, dbuf, off, old_room, off);
out:
tdb_unlock_hashes(tdb, h.hlock_start, h.hlock_range, F_WRLCK);
return tdb->last_error = ecode;
}
_PUBLIC_ enum NTDB_ERROR ntdb_store(struct ntdb_context *ntdb,
NTDB_DATA key, NTDB_DATA dbuf, int flag)
{
struct hash_info h;
ntdb_off_t off;
ntdb_len_t old_room = 0;
struct ntdb_used_record rec;
enum NTDB_ERROR ecode;
off = find_and_lock(ntdb, key, F_WRLCK, &h, &rec, NULL);
if (NTDB_OFF_IS_ERR(off)) {
return NTDB_OFF_TO_ERR(off);
}
/* Now we have lock on this hash bucket. */
if (flag == NTDB_INSERT) {
if (off) {
ecode = NTDB_ERR_EXISTS;
goto out;
}
} else {
if (off) {
old_room = rec_data_length(&rec)
+ rec_extra_padding(&rec);
if (old_room >= dbuf.dsize) {
/* Can modify in-place. Easy! */
ecode = update_rec_hdr(ntdb, off,
key.dsize, dbuf.dsize,
&rec);
if (ecode != NTDB_SUCCESS) {
goto out;
}
ecode = update_data(ntdb,
off + sizeof(rec)
+ key.dsize, dbuf,
old_room - dbuf.dsize);
if (ecode != NTDB_SUCCESS) {
goto out;
}
ntdb_unlock_hash(ntdb, h.h, F_WRLCK);
return NTDB_SUCCESS;
}
} else {
if (flag == NTDB_MODIFY) {
/* if the record doesn't exist and we
are in NTDB_MODIFY mode then we should fail
the store */
ecode = NTDB_ERR_NOEXIST;
goto out;
}
}
}
/* If we didn't use the old record, this implies we're growing. */
ecode = replace_data(ntdb, &h, key, dbuf, off, old_room, off);
out:
ntdb_unlock_hash(ntdb, h.h, F_WRLCK);
return ecode;
}
uint64_t fix_offset(FILE *outfile, const long offset, const long additional, int index, const char *name, struct cpk_file *file, int file_count)
{
long orig_offset = additional + query_utf_8byte(outfile, offset, index, name);
long off_off = query_utf_offset(outfile, offset, index, name);
long new_offset = orig_offset;
for(int i = 0; i < file_count; i++)
{
if(orig_offset <= file[i].orig_offset) break;
else if(file[i].copied) new_offset += file[i].offset_diff;
}
unsigned char offset_buf[8];
write_64_be(new_offset-additional, offset_buf);
replace_data(outfile, off_off, offset_buf, 8);
return new_offset;
}
_PUBLIC_ enum NTDB_ERROR ntdb_append(struct ntdb_context *ntdb,
NTDB_DATA key, NTDB_DATA dbuf)
{
struct hash_info h;
ntdb_off_t off;
struct ntdb_used_record rec;
ntdb_len_t old_room = 0, old_dlen;
unsigned char *newdata;
NTDB_DATA new_dbuf;
enum NTDB_ERROR ecode;
off = find_and_lock(ntdb, key, F_WRLCK, &h, &rec, NULL);
if (NTDB_OFF_IS_ERR(off)) {
return NTDB_OFF_TO_ERR(off);
}
if (off) {
old_dlen = rec_data_length(&rec);
old_room = old_dlen + rec_extra_padding(&rec);
/* Fast path: can append in place. */
if (rec_extra_padding(&rec) >= dbuf.dsize) {
ecode = update_rec_hdr(ntdb, off, key.dsize,
old_dlen + dbuf.dsize, &rec);
if (ecode != NTDB_SUCCESS) {
goto out;
}
off += sizeof(rec) + key.dsize + old_dlen;
ecode = update_data(ntdb, off, dbuf,
rec_extra_padding(&rec));
goto out;
}
/* Slow path. */
newdata = ntdb->alloc_fn(ntdb, key.dsize + old_dlen + dbuf.dsize,
ntdb->alloc_data);
if (!newdata) {
ecode = ntdb_logerr(ntdb, NTDB_ERR_OOM, NTDB_LOG_ERROR,
"ntdb_append:"
" failed to allocate %zu bytes",
(size_t)(key.dsize + old_dlen
+ dbuf.dsize));
goto out;
}
ecode = ntdb->io->tread(ntdb, off + sizeof(rec) + key.dsize,
newdata, old_dlen);
if (ecode != NTDB_SUCCESS) {
goto out_free_newdata;
}
memcpy(newdata + old_dlen, dbuf.dptr, dbuf.dsize);
new_dbuf.dptr = newdata;
new_dbuf.dsize = old_dlen + dbuf.dsize;
} else {
newdata = NULL;
new_dbuf = dbuf;
}
/* If they're using ntdb_append(), it implies they're growing record. */
ecode = replace_data(ntdb, &h, key, new_dbuf, off, old_room, true);
out_free_newdata:
ntdb->free_fn(newdata, ntdb->alloc_data);
out:
ntdb_unlock_hash(ntdb, h.h, F_WRLCK);
return ecode;
}
enum TDB_ERROR tdb_append(struct tdb_context *tdb,
struct tdb_data key, struct tdb_data dbuf)
{
struct hash_info h;
tdb_off_t off;
struct tdb_used_record rec;
tdb_len_t old_room = 0, old_dlen;
unsigned char *newdata;
struct tdb_data new_dbuf;
enum TDB_ERROR ecode;
off = find_and_lock(tdb, key, F_WRLCK, &h, &rec, NULL);
if (TDB_OFF_IS_ERR(off)) {
return tdb->last_error = off;
}
if (off) {
old_dlen = rec_data_length(&rec);
old_room = old_dlen + rec_extra_padding(&rec);
/* Fast path: can append in place. */
if (rec_extra_padding(&rec) >= dbuf.dsize) {
ecode = update_rec_hdr(tdb, off, key.dsize,
old_dlen + dbuf.dsize, &rec,
h.h);
if (ecode != TDB_SUCCESS) {
goto out;
}
off += sizeof(rec) + key.dsize + old_dlen;
ecode = update_data(tdb, off, dbuf,
rec_extra_padding(&rec));
goto out;
}
/* Slow path. */
newdata = malloc(key.dsize + old_dlen + dbuf.dsize);
if (!newdata) {
ecode = tdb_logerr(tdb, TDB_ERR_OOM, TDB_LOG_ERROR,
"tdb_append:"
" failed to allocate %zu bytes",
(size_t)(key.dsize + old_dlen
+ dbuf.dsize));
goto out;
}
ecode = tdb->methods->tread(tdb, off + sizeof(rec) + key.dsize,
newdata, old_dlen);
if (ecode != TDB_SUCCESS) {
goto out_free_newdata;
}
memcpy(newdata + old_dlen, dbuf.dptr, dbuf.dsize);
new_dbuf.dptr = newdata;
new_dbuf.dsize = old_dlen + dbuf.dsize;
} else {
newdata = NULL;
new_dbuf = dbuf;
}
/* If they're using tdb_append(), it implies they're growing record. */
ecode = replace_data(tdb, &h, key, new_dbuf, off, old_room, true);
out_free_newdata:
free(newdata);
out:
tdb_unlock_hashes(tdb, h.hlock_start, h.hlock_range, F_WRLCK);
return tdb->last_error = ecode;
}
