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The C and C++ Include Header Files

/usr/include/x86_64-linux-gnu/bits/socket-constants.h


$ cat -n /usr/include/x86_64-linux-gnu/bits/socket-constants.h

     1	/* Socket constants which vary among Linux architectures.
     2	   Copyright (C) 2019-2024 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 _SYS_SOCKET_H
    20	# error "Never include <bits/socket-constants.h> directly; use <sys/socket.h> instead."
    21	#endif
    22	
    23	#include <bits/timesize.h>
    24	
    25	#define SOL_SOCKET 1
    26	#define SO_ACCEPTCONN 30
    27	#define SO_BROADCAST 6
    28	#define SO_DONTROUTE 5
    29	#define SO_ERROR 4
    30	#define SO_KEEPALIVE 9
    31	#define SO_LINGER 13
    32	#define SO_OOBINLINE 10
    33	#define SO_RCVBUF 8
    34	#define SO_RCVLOWAT 18
    35	#define SO_REUSEADDR 2
    36	#define SO_SNDBUF 7
    37	#define SO_SNDLOWAT 19
    38	#define SO_TYPE 3
    39	
    40	#if (__TIMESIZE == 64 && __WORDSIZE == 32 \
    41	     && (!defined __SYSCALL_WORDSIZE || __SYSCALL_WORDSIZE == 32))
    42	# define SO_RCVTIMEO 66
    43	# define SO_SNDTIMEO 67
    44	# define SO_TIMESTAMP 63
    45	# define SO_TIMESTAMPNS 64
    46	# define SO_TIMESTAMPING 65
    47	#else
    48	# if __TIMESIZE == 64
    49	#  define SO_RCVTIMEO 20
    50	#  define SO_SNDTIMEO 21
    51	#  define SO_TIMESTAMP 29
    52	#  define SO_TIMESTAMPNS 35
    53	#  define SO_TIMESTAMPING 37
    54	# else
    55	#  define SO_RCVTIMEO_OLD 20
    56	#  define SO_SNDTIMEO_OLD 21
    57	#  define SO_RCVTIMEO_NEW 66
    58	#  define SO_SNDTIMEO_NEW 67
    59	
    60	#  define SO_TIMESTAMP_OLD 29
    61	#  define SO_TIMESTAMPNS_OLD 35
    62	#  define SO_TIMESTAMPING_OLD 37
    63	#  define SO_TIMESTAMP_NEW 63
    64	#  define SO_TIMESTAMPNS_NEW 64
    65	#  define SO_TIMESTAMPING_NEW 65
    66	
    67	#  ifdef __USE_TIME_BITS64
    68	#   define SO_RCVTIMEO SO_RCVTIMEO_NEW
    69	#   define SO_SNDTIMEO SO_SNDTIMEO_NEW
    70	#   define SO_TIMESTAMP SO_TIMESTAMP_NEW
    71	#   define SO_TIMESTAMPNS SO_TIMESTAMPNS_NEW
    72	#   define SO_TIMESTAMPING SO_TIMESTAMPING_NEW
    73	#  else
    74	#   define SO_RCVTIMEO SO_RCVTIMEO_OLD
    75	#   define SO_SNDTIMEO SO_SNDTIMEO_OLD
    76	#   define SO_TIMESTAMP SO_TIMESTAMP_OLD
    77	#   define SO_TIMESTAMPNS SO_TIMESTAMPNS_OLD
    78	#   define SO_TIMESTAMPING SO_TIMESTAMPING_OLD
    79	#  endif
    80	# endif
    81	#endif