_tftpFlags Variable

union {
  struct {
    unsigned int bIsFlushed : 1;
    unsigned int bIsAcked : 1;
    unsigned int bIsClosed : 1;
    unsigned int bIsClosing : 1;
    unsigned int bIsReading : 1;
  } bits;
  BYTE Val;
} _tftpFlags;

TFTP status flags