Function svn_subst_stream_from_specialfile 

pub unsafe extern "C" fn svn_subst_stream_from_specialfile(
    stream: *mut *mut svn_stream_t,
    path: *const c_char,
    pool: *mut apr_pool_t,
) -> *mut svn_error_t

Set @a *stream to a stream which translates the special file at @a path to the internal representation for special files when read from. When written to, it does the reverse: creating a special file when the stream is closed.

@since New in 1.5.

@deprecated Provided for backward compatibility with the 1.5 API. Callers should use svn_subst_read_specialfile or svn_subst_create_specialfile as appropriate.