The C and C++ Include Header Files

/usr/include/netash/ash.h


$ cat -n /usr/include/netash/ash.h

     1	/* Definitions for use with Linux AF_ASH sockets.
     2	   Copyright (C) 1998-2024 Free Software Foundation, Inc.
     3	   This file is part of the GNU C Library.
     4	
     5	   The GNU C Library is free software; you can redistribute it and/or
     6	   modify it under the terms of the GNU Lesser General Public
     7	   License as published by the Free Software Foundation; either
     8	   version 2.1 of the License, or (at your option) any later version.
     9	
    10	   The GNU C Library is distributed in the hope that it will be useful,
    11	   but WITHOUT ANY WARRANTY; without even the implied warranty of
    12	   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    13	   Lesser General Public License for more details.
    14	
    15	   You should have received a copy of the GNU Lesser General Public
    16	   License along with the GNU C Library; if not, see
    17	   <https://www.gnu.org/licenses/>.  */
    18	
    19	#ifndef _NETASH_ASH_H
    20	#define _NETASH_ASH_H	1
    21	
    22	#include <features.h>
    23	#include <bits/sockaddr.h>
    24	
    25	struct sockaddr_ash
    26	  {
    27	    __SOCKADDR_COMMON (sash_);		/* Common data: address family etc.  */
    28	    int sash_ifindex;			/* Interface to use.  */
    29	    unsigned char sash_channel;		/* Realtime or control.  */
    30	    unsigned int sash_plen;
    31	    unsigned char sash_prefix[16];
    32	  };
    33	
    34	/* Values for `channel' member.  */
    35	#define ASH_CHANNEL_ANY		0
    36	#define ASH_CHANNEL_CONTROL	1
    37	#define ASH_CHANNEL_REALTIME	2
    38	
    39	#endif	/* netash/ash.h */