/**
* read_content_file:
* @path : buffer of the content file.
* @buf : size of the content file.
* @length : size of the content file that has been read from.
*
* Read the content file. If read into memory, also performs soft patching
* (see patch_content function) in case soft patching has not been
* blocked by the enduser.
*
* Returns: true if successful, false on error.
**/
static bool read_content_file(unsigned i, const char *path, void **buf,
ssize_t *length)
{
uint8_t *ret_buf = NULL;
global_t *global = global_get_ptr();
RARCH_LOG("%s: %s.\n",
msg_hash_to_str(MSG_LOADING_CONTENT_FILE), path);
if (!read_file(path, (void**) &ret_buf, length))
return false;
if (*length < 0)
return false;
if (i != 0)
return true;
/* Attempt to apply a patch. */
if (!global->patch.block_patch)
patch_content(&ret_buf, length);
#ifdef HAVE_ZLIB
global->content_crc = zlib_crc32_calculate(ret_buf, *length);
RARCH_LOG("CRC32: 0x%x .\n", (unsigned)global->content_crc);
#endif
*buf = ret_buf;
return true;
}
/**
* zlib_inflate_data_to_file:
* @path : filename path of archive.
* @valid_exts : Valid extensions of archive to be parsed.
* If NULL, allow all.
* @cdata : input data.
* @csize : size of input data.
* @size : output file size
* @checksum : CRC32 checksum from input data.
*
* Decompress data to file.
*
* Returns: true (1) on success, otherwise false (0).
**/
int zlib_inflate_data_to_file(zlib_file_handle_t *handle,
int ret, const char *path, const char *valid_exts,
const uint8_t *cdata, uint32_t csize, uint32_t size, uint32_t checksum)
{
if (handle)
{
zlib_stream_free(handle->stream);
free(handle->stream);
}
if (!handle || ret == -1)
{
ret = 0;
goto end;
}
handle->real_checksum = zlib_crc32_calculate(handle->data, size);
#if 0
if (handle->real_checksum != checksum)
{
/* File CRC difers from ZIP CRC. */
printf("File CRC differs from ZIP CRC. File: 0x%x, ZIP: 0x%x.\n",
(unsigned)handle->real_checksum, (unsigned)checksum);
}
#endif
if (!zlib_write_file(path, handle->data, size))
GOTO_END_ERROR();
end:
if (handle->data)
free(handle->data);
return ret;
}
static int database_info_iterate_playlist(
database_state_handle_t *db_state,
database_info_handle_t *db, const char *name)
{
uint32_t extension_hash = 0;
char parent_dir[PATH_MAX_LENGTH] = {0};
path_parent_dir(parent_dir);
extension_hash = msg_hash_calculate(path_get_extension(name));
switch (extension_hash)
{
case HASH_EXTENSION_ZIP:
#ifdef HAVE_ZLIB
db->type = DATABASE_TYPE_ITERATE_ZIP;
memset(&db->state, 0, sizeof(zlib_transfer_t));
db_state->zip_name[0] = '\0';
db->state.type = ZLIB_TRANSFER_INIT;
return 1;
#endif
case HASH_EXTENSION_CUE:
case HASH_EXTENSION_CUE_UPPERCASE:
db_state->serial[0] = '\0';
cue_get_serial(db_state, db, name, db_state->serial);
db->type = DATABASE_TYPE_SERIAL_LOOKUP;
return 1;
case HASH_EXTENSION_ISO:
case HASH_EXTENSION_ISO_UPPERCASE:
db_state->serial[0] = '\0';
iso_get_serial(db_state, db, name, db_state->serial);
db->type = DATABASE_TYPE_SERIAL_LOOKUP;
return 1;
default:
{
ssize_t ret;
int read_from = read_file(name, (void**)&db_state->buf, &ret);
if (read_from != 1 || ret <= 0)
return 0;
#ifdef HAVE_ZLIB
db_state->crc = zlib_crc32_calculate(db_state->buf, ret);
#endif
db->type = DATABASE_TYPE_CRC_LOOKUP;
}
break;
}
return 1;
}
