2.11BSD#431 - /usr/src/sys/netinet/in_systm.h

   1: /*
   2:  * Copyright (c) 1982, 1986 Regents of the University of California.
   3:  * All rights reserved.
   4:  *
   5:  * Redistribution and use in source and binary forms are permitted
   6:  * provided that this notice is preserved and that due credit is given
   7:  * to the University of California at Berkeley. The name of the University
   8:  * may not be used to endorse or promote products derived from this
   9:  * software without specific prior written permission. This software
  10:  * is provided ``as is'' without express or implied warranty.
  11:  *
  12:  *	@(#)in_systm.h	7.2.1 (2.11BSD GTE) 12/31/93
  13:  */
  14: 
  15: /*
  16:  * Miscellaneous internetwork
  17:  * definitions for kernel.
  18:  */
  19: 
  20: /*
  21:  * Network types.
  22:  *
  23:  * Internally the system keeps counters in the headers with the bytes
  24:  * swapped so that VAX instructions will work on them.  It reverses
  25:  * the bytes before transmission at each protocol level.  The n_ types
  26:  * represent the types with the bytes in ``high-ender'' order.
  27:  */
  28: typedef u_short n_short;        /* short as received from the net */
  29: typedef u_long  n_long;         /* long as received from the net */
  30: 
  31: typedef u_long  n_time;         /* ms since 00:00 GMT, byte rev */
  32: 
  33: #ifdef pdp11
  34: #define UCHAR(a)    ((u_int)((a)&0xff))
  35: #endif
  36: 
  37: #ifdef SUPERVISOR
  38: n_time  iptime();
  39: #endif

Defined macros

Usage of this include