/**
* 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;
}
/**
* load_content_into_memory:
* @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 load_content_into_memory(unsigned i, const char *path, void **buf,
ssize_t *length)
{
uint32_t *content_crc_ptr = NULL;
uint8_t *ret_buf = NULL;
RARCH_LOG("%s: %s.\n",
msg_hash_to_str(MSG_LOADING_CONTENT_FILE), path);
if (!content_file_read(path, (void**) &ret_buf, length))
return false;
if (*length < 0)
return false;
if (i == 0)
{
/* First content file is significant, attempt to do patching,
* CRC checking, etc. */
/* Attempt to apply a patch. */
if (!rarch_ctl(RARCH_CTL_IS_PATCH_BLOCKED, NULL))
patch_content(&ret_buf, length);
content_get_crc(&content_crc_ptr);
*content_crc_ptr = encoding_crc32(0, ret_buf, *length);
RARCH_LOG("CRC32: 0x%x .\n", (unsigned)*content_crc_ptr);
}
*buf = ret_buf;
return true;
}
/**
* 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)
{
#ifdef HAVE_ZLIB
content_stream_t stream_info;
uint32_t *content_crc_ptr = NULL;
#endif
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 (!content_file_read(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
content_get_crc(&content_crc_ptr);
stream_info.a = 0;
stream_info.b = ret_buf;
stream_info.c = *length;
if (!stream_backend)
stream_backend = file_archive_get_default_file_backend();
stream_info.crc = stream_backend->stream_crc_calculate(
stream_info.a, stream_info.b, stream_info.c);
*content_crc_ptr = stream_info.crc;
RARCH_LOG("CRC32: 0x%x .\n", (unsigned)*content_crc_ptr);
#endif
*buf = ret_buf;
return true;
}
/**
* 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)
{
#ifdef HAVE_ZLIB
content_stream_t stream_info;
uint32_t *content_crc_ptr = NULL;
#endif
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 (!content_file_read(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
content_ctl(CONTENT_CTL_GET_CRC, &content_crc_ptr);
stream_info.a = 0;
stream_info.b = ret_buf;
stream_info.c = *length;
content_ctl(CONTENT_CTL_STREAM_CRC_CALCULATE, &stream_info);
*content_crc_ptr = stream_info.crc;
RARCH_LOG("CRC32: 0x%x .\n", (unsigned)*content_crc_ptr);
#endif
*buf = ret_buf;
return true;
}
static ssize_t read_content_file(const char *path, void **buf)
{
uint8_t *ret_buf = NULL;
ssize_t ret = read_file(path, (void**)&ret_buf);
if (ret <= 0)
return ret;
if (!g_extern.block_patch)
{
// Attempt to apply a patch.
patch_content(&ret_buf, &ret);
}
g_extern.content_crc = crc32_calculate(ret_buf, ret);
sha256_hash(g_extern.sha256, ret_buf, ret);
RARCH_LOG("CRC32: 0x%x, SHA256: %s\n",
(unsigned)g_extern.content_crc, g_extern.sha256);
*buf = ret_buf;
return ret;
}
