+ tPTY *pty = Node->ImplPtr;
+ if( !pty ) {
+ errno = EIO;
+ return -1;
+ }
+
+ tTime timeout_z = 0, *timeout = (Flags & VFS_IOFLAG_NOBLOCK) ? &timeout_z : NULL;
+ int rv = VFS_SelectNode(Node, VFS_SELECT_WRITE, timeout, "PTY_WriteServer");
+ if(!rv) {
+ errno = (timeout ? EWOULDBLOCK : EINTR);
+ return -1;
+ }
+ size_t used = 0;
+ do {
+ used += PTY_SendInput(Node->ImplPtr, Buffer, Length);
+ } while( used < Length && !(Flags & VFS_IOFLAG_NOBLOCK) );
+
+ if( (pty->InputWritePos+1)%INPUT_RINGBUFFER_LEN == pty->InputReadPos )
+ VFS_MarkFull(Node, 1);
+ return used;