/* System-specific socket constants and types. Linux version.

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Copyright (C) 1991-2018 Free Software Foundation, Inc.

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This file is part of the GNU C Library.

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The GNU C Library is free software; you can redistribute it and/or

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modify it under the terms of the GNU Lesser General Public

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License as published by the Free Software Foundation; either

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version 2.1 of the License, or (at your option) any later version.

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The GNU C Library is distributed in the hope that it will be useful,

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but WITHOUT ANY WARRANTY; without even the implied warranty of

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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU

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Lesser General Public License for more details.

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You should have received a copy of the GNU Lesser General Public

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License along with the GNU C Library; if not, see

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<http://www.gnu.org/licenses/>. */

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#ifndef __BITS_SOCKET_H

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#define __BITS_SOCKET_H

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#ifndef _SYS_SOCKET_H

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# error "Never include <bits/socket.h> directly; use <sys/socket.h> instead."

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#endif

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#define __need_size_t

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#include <stddef.h>

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#include <sys/types.h>

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/* Type for length arguments in socket calls. */

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#ifndef __socklen_t_defined

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typedef __socklen_t socklen_t;

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# define __socklen_t_defined

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#endif

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/* Get the architecture-dependent definition of enum __socket_type. */

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#include <bits/socket_type.h>

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/* Protocol families. */

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#define PF_UNSPEC 0 /* Unspecified. */

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#define PF_LOCAL 1 /* Local to host (pipes and file-domain). */

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#define PF_UNIX PF_LOCAL /* POSIX name for PF_LOCAL. */

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#define PF_FILE PF_LOCAL /* Another non-standard name for PF_LOCAL. */

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#define PF_INET 2 /* IP protocol family. */

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#define PF_AX25 3 /* Amateur Radio AX.25. */

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#define PF_IPX 4 /* Novell Internet Protocol. */

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#define PF_APPLETALK 5 /* Appletalk DDP. */

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#define PF_NETROM 6 /* Amateur radio NetROM. */

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#define PF_BRIDGE 7 /* Multiprotocol bridge. */

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#define PF_ATMPVC 8 /* ATM PVCs. */

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#define PF_X25 9 /* Reserved for X.25 project. */

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#define PF_INET6 10 /* IP version 6. */

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#define PF_ROSE 11 /* Amateur Radio X.25 PLP. */

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#define PF_DECnet 12 /* Reserved for DECnet project. */

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#define PF_NETBEUI 13 /* Reserved for 802.2LLC project. */

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#define PF_SECURITY 14 /* Security callback pseudo AF. */

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#define PF_KEY 15 /* PF_KEY key management API. */

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#define PF_NETLINK 16

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#define PF_ROUTE PF_NETLINK /* Alias to emulate 4.4BSD. */

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#define PF_PACKET 17 /* Packet family. */

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#define PF_ASH 18 /* Ash. */

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#define PF_ECONET 19 /* Acorn Econet. */

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#define PF_ATMSVC 20 /* ATM SVCs. */

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#define PF_RDS 21 /* RDS sockets. */

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#define PF_SNA 22 /* Linux SNA Project */

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#define PF_IRDA 23 /* IRDA sockets. */

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#define PF_PPPOX 24 /* PPPoX sockets. */

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#define PF_WANPIPE 25 /* Wanpipe API sockets. */

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#define PF_LLC 26 /* Linux LLC. */

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#define PF_IB 27 /* Native InfiniBand address. */

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#define PF_MPLS 28 /* MPLS. */

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#define PF_CAN 29 /* Controller Area Network. */

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#define PF_TIPC 30 /* TIPC sockets. */

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#define PF_BLUETOOTH 31 /* Bluetooth sockets. */

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#define PF_IUCV 32 /* IUCV sockets. */

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#define PF_RXRPC 33 /* RxRPC sockets. */

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#define PF_ISDN 34 /* mISDN sockets. */

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#define PF_PHONET 35 /* Phonet sockets. */

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#define PF_IEEE802154 36 /* IEEE 802.15.4 sockets. */

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#define PF_CAIF 37 /* CAIF sockets. */

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#define PF_ALG 38 /* Algorithm sockets. */

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#define PF_NFC 39 /* NFC sockets. */

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#define PF_VSOCK 40 /* vSockets. */

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#define PF_KCM 41 /* Kernel Connection Multiplexor. */

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#define PF_QIPCRTR 42 /* Qualcomm IPC Router. */

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#define PF_SMC 43 /* SMC sockets. */

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#define PF_XDP 44 /* XDP sockets. */

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#define PF_MAX 45 /* For now.. */

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/* Address families. */

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#define AF_UNSPEC PF_UNSPEC

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#define AF_LOCAL PF_LOCAL

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#define AF_UNIX PF_UNIX

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#define AF_FILE PF_FILE

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#define AF_INET PF_INET

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#define AF_AX25 PF_AX25

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#define AF_IPX PF_IPX

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#define AF_APPLETALK PF_APPLETALK

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#define AF_NETROM PF_NETROM

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#define AF_BRIDGE PF_BRIDGE

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#define AF_ATMPVC PF_ATMPVC

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#define AF_X25 PF_X25

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#define AF_INET6 PF_INET6

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#define AF_ROSE PF_ROSE

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#define AF_DECnet PF_DECnet

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#define AF_NETBEUI PF_NETBEUI

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#define AF_SECURITY PF_SECURITY

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#define AF_KEY PF_KEY

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#define AF_NETLINK PF_NETLINK

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#define AF_ROUTE PF_ROUTE

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#define AF_PACKET PF_PACKET

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#define AF_ASH PF_ASH

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#define AF_ECONET PF_ECONET

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#define AF_ATMSVC PF_ATMSVC

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#define AF_RDS PF_RDS

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#define AF_SNA PF_SNA

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#define AF_IRDA PF_IRDA

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#define AF_PPPOX PF_PPPOX

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#define AF_WANPIPE PF_WANPIPE

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#define AF_LLC PF_LLC

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#define AF_IB PF_IB

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#define AF_MPLS PF_MPLS

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#define AF_CAN PF_CAN

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#define AF_TIPC PF_TIPC

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#define AF_BLUETOOTH PF_BLUETOOTH

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#define AF_IUCV PF_IUCV

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#define AF_RXRPC PF_RXRPC

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#define AF_ISDN PF_ISDN

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#define AF_PHONET PF_PHONET

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#define AF_IEEE802154 PF_IEEE802154

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#define AF_CAIF PF_CAIF

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#define AF_ALG PF_ALG

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#define AF_NFC PF_NFC

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#define AF_VSOCK PF_VSOCK

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#define AF_KCM PF_KCM

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#define AF_QIPCRTR PF_QIPCRTR

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#define AF_SMC PF_SMC

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#define AF_XDP PF_XDP

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#define AF_MAX PF_MAX

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/* Socket level values. Others are defined in the appropriate headers.

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XXX These definitions also should go into the appropriate headers as

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far as they are available. */

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#define SOL_RAW 255

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#define SOL_DECNET 261

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#define SOL_X25 262

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#define SOL_PACKET 263

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#define SOL_ATM 264 /* ATM layer (cell level). */

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#define SOL_AAL 265 /* ATM Adaption Layer (packet level). */

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#define SOL_IRDA 266

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#define SOL_NETBEUI 267

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#define SOL_LLC 268

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#define SOL_DCCP 269

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#define SOL_NETLINK 270

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#define SOL_TIPC 271

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#define SOL_RXRPC 272

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#define SOL_PPPOL2TP 273

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#define SOL_BLUETOOTH 274

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#define SOL_PNPIPE 275

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#define SOL_RDS 276

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#define SOL_IUCV 277

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#define SOL_CAIF 278

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#define SOL_ALG 279

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#define SOL_NFC 280

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#define SOL_KCM 281

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#define SOL_TLS 282

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#define SOL_XDP 283

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/* Maximum queue length specifiable by listen. */

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#define SOMAXCONN 128

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/* Get the definition of the macro to define the common sockaddr members. */

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#include <bits/sockaddr.h>

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/* Structure describing a generic socket address. */

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struct sockaddr

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{

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__SOCKADDR_COMMON (sa_); /* Common data: address family and length. */

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char sa_data[14]; /* Address data. */

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};

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/* Structure large enough to hold any socket address (with the historical

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exception of AF_UNIX). */

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#define __ss_aligntype unsigned long int

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#define _SS_PADSIZE \

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(_SS_SIZE - __SOCKADDR_COMMON_SIZE - sizeof (__ss_aligntype))

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struct sockaddr_storage

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{

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__SOCKADDR_COMMON (ss_); /* Address family, etc. */

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char __ss_padding[_SS_PADSIZE];

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__ss_aligntype __ss_align; /* Force desired alignment. */

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};

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/* Bits in the FLAGS argument to `send', `recv', et al. */

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enum

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{

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MSG_OOB = 0x01, /* Process out-of-band data. */

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#define MSG_OOB MSG_OOB

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MSG_PEEK = 0x02, /* Peek at incoming messages. */

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#define MSG_PEEK MSG_PEEK

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MSG_DONTROUTE = 0x04, /* Don't use local routing. */

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#define MSG_DONTROUTE MSG_DONTROUTE

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#ifdef __USE_GNU

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/* DECnet uses a different name. */

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MSG_TRYHARD = MSG_DONTROUTE,

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# define MSG_TRYHARD MSG_DONTROUTE

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#endif

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MSG_CTRUNC = 0x08, /* Control data lost before delivery. */

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#define MSG_CTRUNC MSG_CTRUNC

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MSG_PROXY = 0x10, /* Supply or ask second address. */

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#define MSG_PROXY MSG_PROXY

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MSG_TRUNC = 0x20,

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#define MSG_TRUNC MSG_TRUNC

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MSG_DONTWAIT = 0x40, /* Nonblocking IO. */

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#define MSG_DONTWAIT MSG_DONTWAIT

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MSG_EOR = 0x80, /* End of record. */

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#define MSG_EOR MSG_EOR

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MSG_WAITALL = 0x100, /* Wait for a full request. */

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#define MSG_WAITALL MSG_WAITALL

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MSG_FIN = 0x200,

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#define MSG_FIN MSG_FIN

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MSG_SYN = 0x400,

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#define MSG_SYN MSG_SYN

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MSG_CONFIRM = 0x800, /* Confirm path validity. */

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#define MSG_CONFIRM MSG_CONFIRM

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MSG_RST = 0x1000,

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#define MSG_RST MSG_RST

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MSG_ERRQUEUE = 0x2000, /* Fetch message from error queue. */

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#define MSG_ERRQUEUE MSG_ERRQUEUE

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MSG_NOSIGNAL = 0x4000, /* Do not generate SIGPIPE. */

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#define MSG_NOSIGNAL MSG_NOSIGNAL

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MSG_MORE = 0x8000, /* Sender will send more. */

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#define MSG_MORE MSG_MORE

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MSG_WAITFORONE = 0x10000, /* Wait for at least one packet to return.*/

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#define MSG_WAITFORONE MSG_WAITFORONE

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MSG_BATCH = 0x40000, /* sendmmsg: more messages coming. */

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#define MSG_BATCH MSG_BATCH

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MSG_ZEROCOPY = 0x4000000, /* Use user data in kernel path. */

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#define MSG_ZEROCOPY MSG_ZEROCOPY

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MSG_FASTOPEN = 0x20000000, /* Send data in TCP SYN. */

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#define MSG_FASTOPEN MSG_FASTOPEN

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MSG_CMSG_CLOEXEC = 0x40000000 /* Set close_on_exit for file

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descriptor received through

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SCM_RIGHTS. */

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#define MSG_CMSG_CLOEXEC MSG_CMSG_CLOEXEC

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};

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/* Structure describing messages sent by

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`sendmsg' and received by `recvmsg'. */

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struct msghdr

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{

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void *msg_name; /* Address to send to/receive from. */

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socklen_t msg_namelen; /* Length of address data. */

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struct iovec *msg_iov; /* Vector of data to send/receive into. */

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size_t msg_iovlen; /* Number of elements in the vector. */

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void *msg_control; /* Ancillary data (eg BSD filedesc passing). */

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size_t msg_controllen; /* Ancillary data buffer length.

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!! The type should be socklen_t but the

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definition of the kernel is incompatible

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with this. */

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int msg_flags; /* Flags on received message. */

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};

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/* Structure used for storage of ancillary data object information. */

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struct cmsghdr

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{

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size_t cmsg_len; /* Length of data in cmsg_data plus length

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of cmsghdr structure.

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!! The type should be socklen_t but the

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definition of the kernel is incompatible

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with this. */

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int cmsg_level; /* Originating protocol. */

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int cmsg_type; /* Protocol specific type. */

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#if __glibc_c99_flexarr_available

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__extension__ unsigned char __cmsg_data __flexarr; /* Ancillary data. */

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#endif

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};

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/* Ancillary data object manipulation macros. */

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#if __glibc_c99_flexarr_available

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# define CMSG_DATA(cmsg) ((cmsg)->__cmsg_data)

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#else

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# define CMSG_DATA(cmsg) ((unsigned char *) ((struct cmsghdr *) (cmsg) + 1))

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#endif

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#define CMSG_NXTHDR(mhdr, cmsg) __cmsg_nxthdr (mhdr, cmsg)

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#define CMSG_FIRSTHDR(mhdr) \

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((size_t) (mhdr)->msg_controllen >= sizeof (struct cmsghdr) \

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? (struct cmsghdr *) (mhdr)->msg_control : (struct cmsghdr *) 0)

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#define CMSG_ALIGN(len) (((len) + sizeof (size_t) - 1) \

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& (size_t) ~(sizeof (size_t) - 1))

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#define CMSG_SPACE(len) (CMSG_ALIGN (len) \

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+ CMSG_ALIGN (sizeof (struct cmsghdr)))

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#define CMSG_LEN(len) (CMSG_ALIGN (sizeof (struct cmsghdr)) + (len))

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/* Given a length, return the additional padding necessary such that

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len + __CMSG_PADDING(len) == CMSG_ALIGN (len). */

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#define __CMSG_PADDING(len) ((sizeof (size_t) \

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- ((len) & (sizeof (size_t) - 1))) \

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& (sizeof (size_t) - 1))

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extern struct cmsghdr *__cmsg_nxthdr (struct msghdr *__mhdr,

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struct cmsghdr *__cmsg) __THROW;

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#ifdef __USE_EXTERN_INLINES

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# ifndef _EXTERN_INLINE

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# define _EXTERN_INLINE __extern_inline

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# endif

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_EXTERN_INLINE struct cmsghdr *

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__NTH (__cmsg_nxthdr (struct msghdr *__mhdr, struct cmsghdr *__cmsg))

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{

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/* We may safely assume that __cmsg lies between __mhdr->msg_control and

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__mhdr->msg_controllen because the user is required to obtain the first

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cmsg via CMSG_FIRSTHDR, set its length, then obtain subsequent cmsgs

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via CMSG_NXTHDR, setting lengths along the way. However, we don't yet

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trust the value of __cmsg->cmsg_len and therefore do not use it in any

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pointer arithmetic until we check its value. */

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unsigned char * __msg_control_ptr = (unsigned char *) __mhdr->msg_control;

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unsigned char * __cmsg_ptr = (unsigned char *) __cmsg;

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size_t __size_needed = sizeof (struct cmsghdr)

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+ __CMSG_PADDING (__cmsg->cmsg_len);

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/* The current header is malformed, too small to be a full header. */

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if ((size_t) __cmsg->cmsg_len < sizeof (struct cmsghdr))

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return (struct cmsghdr *) 0;

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/* There isn't enough space between __cmsg and the end of the buffer to

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hold the current cmsg *and* the next one. */

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if (((size_t)

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(__msg_control_ptr + __mhdr->msg_controllen - __cmsg_ptr)

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< __size_needed)

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|| ((size_t)

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(__msg_control_ptr + __mhdr->msg_controllen - __cmsg_ptr

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- __size_needed)

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< __cmsg->cmsg_len))

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return (struct cmsghdr *) 0;

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/* Now, we trust cmsg_len and can use it to find the next header. */

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__cmsg = (struct cmsghdr *) ((unsigned char *) __cmsg

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+ CMSG_ALIGN (__cmsg->cmsg_len));

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return __cmsg;

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}

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#endif /* Use `extern inline'. */

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/* Socket level message types. This must match the definitions in

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<linux/socket.h>. */

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enum

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{

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SCM_RIGHTS = 0x01 /* Transfer file descriptors. */

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#define SCM_RIGHTS SCM_RIGHTS

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#ifdef __USE_GNU

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, SCM_CREDENTIALS = 0x02 /* Credentials passing. */

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# define SCM_CREDENTIALS SCM_CREDENTIALS

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#endif

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};

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#ifdef __USE_GNU

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/* User visible structure for SCM_CREDENTIALS message */

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struct ucred

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{

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pid_t pid; /* PID of sending process. */

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uid_t uid; /* UID of sending process. */

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gid_t gid; /* GID of sending process. */

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};

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#endif

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/* Ugly workaround for unclean kernel headers. */

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#ifndef __USE_MISC

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# ifndef FIOGETOWN

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# define __SYS_SOCKET_H_undef_FIOGETOWN

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# endif

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# ifndef FIOSETOWN

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# define __SYS_SOCKET_H_undef_FIOSETOWN

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# endif

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# ifndef SIOCATMARK

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# define __SYS_SOCKET_H_undef_SIOCATMARK

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# endif

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# ifndef SIOCGPGRP

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# define __SYS_SOCKET_H_undef_SIOCGPGRP

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# endif

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# ifndef SIOCGSTAMP

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# define __SYS_SOCKET_H_undef_SIOCGSTAMP

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# endif

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# ifndef SIOCGSTAMPNS

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# define __SYS_SOCKET_H_undef_SIOCGSTAMPNS

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# endif

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# ifndef SIOCSPGRP

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# define __SYS_SOCKET_H_undef_SIOCSPGRP

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# endif

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#endif

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#ifndef IOCSIZE_MASK

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# define __SYS_SOCKET_H_undef_IOCSIZE_MASK

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#endif

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#ifndef IOCSIZE_SHIFT

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# define __SYS_SOCKET_H_undef_IOCSIZE_SHIFT

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#endif

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#ifndef IOC_IN

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# define __SYS_SOCKET_H_undef_IOC_IN

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#endif

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#ifndef IOC_INOUT

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# define __SYS_SOCKET_H_undef_IOC_INOUT

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#endif

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#ifndef IOC_OUT

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# define __SYS_SOCKET_H_undef_IOC_OUT

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#endif

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/* Get socket manipulation related informations from kernel headers. */

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#include <asm/socket.h>

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#ifndef __USE_MISC

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# ifdef __SYS_SOCKET_H_undef_FIOGETOWN

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# undef __SYS_SOCKET_H_undef_FIOGETOWN

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# undef FIOGETOWN

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# endif

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# ifdef __SYS_SOCKET_H_undef_FIOSETOWN

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# undef __SYS_SOCKET_H_undef_FIOSETOWN

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# undef FIOSETOWN

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# endif

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# ifdef __SYS_SOCKET_H_undef_SIOCATMARK

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# undef __SYS_SOCKET_H_undef_SIOCATMARK

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# undef SIOCATMARK

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# endif

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# ifdef __SYS_SOCKET_H_undef_SIOCGPGRP

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# undef __SYS_SOCKET_H_undef_SIOCGPGRP

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# undef SIOCGPGRP

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# endif

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# ifdef __SYS_SOCKET_H_undef_SIOCGSTAMP

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# undef __SYS_SOCKET_H_undef_SIOCGSTAMP

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# undef SIOCGSTAMP

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# endif

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# ifdef __SYS_SOCKET_H_undef_SIOCGSTAMPNS

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# undef __SYS_SOCKET_H_undef_SIOCGSTAMPNS

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# undef SIOCGSTAMPNS

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# endif

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# ifdef __SYS_SOCKET_H_undef_SIOCSPGRP

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# undef __SYS_SOCKET_H_undef_SIOCSPGRP

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# undef SIOCSPGRP

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# endif

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#endif

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#ifdef __SYS_SOCKET_H_undef_IOCSIZE_MASK

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# undef __SYS_SOCKET_H_undef_IOCSIZE_MASK

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# undef IOCSIZE_MASK

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#endif

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#ifdef __SYS_SOCKET_H_undef_IOCSIZE_SHIFT

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# undef __SYS_SOCKET_H_undef_IOCSIZE_SHIFT

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# undef IOCSIZE_SHIFT

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#endif

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#ifdef __SYS_SOCKET_H_undef_IOC_IN

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# undef __SYS_SOCKET_H_undef_IOC_IN

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# undef IOC_IN

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#endif

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#ifdef __SYS_SOCKET_H_undef_IOC_INOUT

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# undef __SYS_SOCKET_H_undef_IOC_INOUT

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# undef IOC_INOUT

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#endif

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#ifdef __SYS_SOCKET_H_undef_IOC_OUT

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# undef __SYS_SOCKET_H_undef_IOC_OUT

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# undef IOC_OUT

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#endif

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/* Structure used to manipulate the SO_LINGER option. */

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struct linger

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{

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int l_onoff; /* Nonzero to linger on close. */

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int l_linger; /* Time to linger. */

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};

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#endif /* bits/socket.h */

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[479] Fix | Delete