File /code/usr/include/linux/in_systm.h

#ifndef _LINUX_IN_SYSTM_H
#define _LINUX_IN_SYSTM_H

/*
 * Network types.
 * The n_ types are network-order variants of their natural
 * equivalents.  The Linux kernel NET-2 code does not use
 * them (yet), but it might in the future.  This is mostly
 * there for compatibility with BSD user-level programs.
 */
typedef u_short	n_short;	/* short as received from the net	*/
typedef u_long	n_long;		/* long as received from the net	*/
typedef u_long	n_time;		/* ms since 00:00 GMT, byte rev		*/

#endif /* _LINUX_IN_SYSTM_H */