_mfs_error MFS_Find_next_file
(
MFS_DRIVE_STRUCT_PTR drive_ptr,
MFS_SEARCH_DATA_PTR transfer_ptr /* [IN/OUT] address of search data block indicating the current criteria and the results of
** the last search results of this search are placed in this data block */
)
{
_mfs_error error_code;
error_code = MFS_lock_dos_disk( drive_ptr );
if ( error_code == MFS_NO_ERROR )
{
error_code = MFS_Find_next_slave(drive_ptr, transfer_ptr);
MFS_unlock(drive_ptr,FALSE);
}
return(error_code);
}
_mfs_error MFS_Find_next_file
(
MQX_FILE_PTR mfs_fd_ptr, /*[IN] pointer to the file struct returned by fopen("MFS...:",..); */
MFS_SEARCH_DATA_PTR transfer_ptr /* [IN/OUT] address of search data block indicating the current criteria and the results of
** the last search results of this search are placed in this data block */
)
{
MFS_DRIVE_STRUCT_PTR drive_ptr;
_mfs_error error_code;
error_code = MFS_lock_dos_disk( mfs_fd_ptr, &drive_ptr );
if ( error_code == MFS_NO_ERROR )
{
error_code = MFS_Find_next_slave(drive_ptr, transfer_ptr);
MFS_unlock(drive_ptr,FALSE);
}
return(error_code);
}
_mfs_error MFS_Find_first_file
(
MFS_DRIVE_STRUCT_PTR drive_ptr,
unsigned char attribute, /*[IN] type of file to find, Search attributes */
char *pathname, /*[IN] optionally the directory and filename to search for */
MFS_SEARCH_DATA_PTR transfer_ptr /*[IN] address of search data block into which the results of the search are put */
)
{
MFS_INTERNAL_SEARCH_PTR internal_search_ptr;
char *temp_dirname;
char *temp_filename;
uint32_t current_cluster;
_mfs_error error_code;
uint32_t i;
char c;
if ( (pathname==NULL) || (*pathname=='\0') )
{
return MFS_INVALID_PARAMETER;
}
if ( transfer_ptr == NULL )
{
return MFS_INVALID_MEMORY_BLOCK_ADDRESS;
}
error_code = MFS_alloc_2paths(&temp_dirname,&temp_filename);
if ( error_code != MFS_NO_ERROR )
{
return( error_code );
}
error_code = MFS_lock_dos_disk( drive_ptr );
if ( error_code != MFS_NO_ERROR )
{
MFS_free_path(temp_dirname);
MFS_free_path(temp_filename);
return error_code;
}
_mem_zero(transfer_ptr, sizeof (MFS_SEARCH_DATA));
transfer_ptr->DRIVE_PTR = drive_ptr;
MFS_Parse_pathname(temp_dirname, temp_filename, pathname);
current_cluster = drive_ptr->CUR_DIR_CLUSTER;
current_cluster = MFS_Find_directory(drive_ptr, temp_dirname, current_cluster);
if ( current_cluster == CLUSTER_INVALID )
{
error_code = MFS_PATH_NOT_FOUND;
}
else
{
/*
** The internal search is only initialised if the directory exists.
*/
internal_search_ptr = &transfer_ptr->INTERNAL_SEARCH_DATA;
internal_search_ptr->CURRENT_CLUSTER = current_cluster;
internal_search_ptr->PREV_CLUSTER = CLUSTER_INVALID;
internal_search_ptr->DIR_ENTRY_INDEX = 0;
MFS_Expand_wildcard(temp_filename, internal_search_ptr->FILENAME);
internal_search_ptr->FULLNAME = temp_filename;
i = _strnlen(pathname, PATHNAME_SIZE + FILENAME_SIZE + 1);
c = pathname[--i];
while ( (c != '\\') && (c != '/') && (c != ':') && i )
{
i--;
c = pathname[i];
}
if ( i || c == '\\' || c == '/' )
{
i++;
}
internal_search_ptr->SRC_PTR = pathname + i;
internal_search_ptr->ATTRIBUTE = attribute;
error_code = MFS_Find_next_slave(drive_ptr, transfer_ptr);
}
MFS_free_path(temp_dirname);
MFS_free_path(temp_filename);
MFS_unlock(drive_ptr,FALSE);
return(error_code);
}
