Loading...
bsd/sys/socket.h xnu-12377.121.6 xnu-201
--- xnu/xnu-12377.121.6/bsd/sys/socket.h
+++ xnu/xnu-201/bsd/sys/socket.h
@@ -1,29 +1,23 @@
 /*
- * Copyright (c) 2000-2022 Apple Inc. All rights reserved.
- *
- * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
- *
- * This file contains Original Code and/or Modifications of Original Code
- * as defined in and that are subject to the Apple Public Source License
- * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. The rights granted to you under the License
- * may not be used to create, or enable the creation or redistribution of,
- * unlawful or unlicensed copies of an Apple operating system, or to
- * circumvent, violate, or enable the circumvention or violation of, any
- * terms of an Apple operating system software license agreement.
- *
- * Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this file.
- *
- * The Original Code and all software distributed under the License are
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ * 
+ * The contents of this file constitute Original Code as defined in and
+ * are subject to the Apple Public Source License Version 1.1 (the
+ * "License").  You may not use this file except in compliance with the
+ * License.  Please obtain a copy of the License at
+ * http://www.apple.com/publicsource and read it before using this file.
+ * 
+ * This Original Code and all software distributed under the License are
+ * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- * Please see the License for the specific language governing rights and
- * limitations under the License.
- *
- * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+ * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
+ * License for the specific language governing rights and limitations
+ * under the License.
+ * 
+ * @APPLE_LICENSE_HEADER_END@
  */
 /* Copyright (c) 1998, 1999 Apple Computer, Inc. All Rights Reserved */
 /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
@@ -60,499 +54,203 @@
  * SUCH DAMAGE.
  *
  *	@(#)socket.h	8.4 (Berkeley) 2/21/94
- * $FreeBSD: src/sys/sys/socket.h,v 1.39.2.7 2001/07/03 11:02:01 ume Exp $
- */
-/*
- * NOTICE: This file was modified by SPARTA, Inc. in 2005 to introduce
- * support for mandatory and extensible security protections.  This notice
- * is included in support of clause 2.2 (b) of the Apple Public License,
- * Version 2.0.
  */
 
 #ifndef _SYS_SOCKET_H_
-#define _SYS_SOCKET_H_
-
-#include <sys/types.h>
-#include <sys/cdefs.h>
-#include <sys/constrained_ctypes.h>
-#include <machine/_param.h>
-#include <net/net_kev.h>
-
-#ifndef KERNEL
-#include <Availability.h>
-#endif
+#define	_SYS_SOCKET_H_
+
 
 /*
  * Definitions related to sockets: types, address families, options.
  */
 
 /*
- * Data types.
- */
-
-#include <sys/_types/_gid_t.h>
-#include <sys/_types/_off_t.h>
-#include <sys/_types/_pid_t.h>
-#include <sys/_types/_sa_family_t.h>
-#include <sys/_types/_socklen_t.h>
-
-/* XXX Not explicitly defined by POSIX, but function return types are */
-#include <sys/_types/_size_t.h>
-
-/* XXX Not explicitly defined by POSIX, but function return types are */
-#include <sys/_types/_ssize_t.h>
-
-/*
- * [XSI] The iovec structure shall be defined as described in <sys/uio.h>.
- */
-#include <sys/_types/_iovec_t.h>
-
-/*
  * Types
  */
-#define SOCK_STREAM     1               /* stream socket */
-#define SOCK_DGRAM      2               /* datagram socket */
-#define SOCK_RAW        3               /* raw-protocol interface */
-#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
-#define SOCK_RDM        4               /* reliably-delivered message */
-#endif  /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
-#define SOCK_SEQPACKET  5               /* sequenced packet stream */
+#define	SOCK_STREAM	1		/* stream socket */
+#define	SOCK_DGRAM	2		/* datagram socket */
+#define	SOCK_RAW	3		/* raw-protocol interface */
+#define	SOCK_RDM	4		/* reliably-delivered message */
+#define	SOCK_SEQPACKET	5		/* sequenced packet stream */
 
 /*
  * Option flags per-socket.
  */
-#define SO_DEBUG        0x0001          /* turn on debugging info recording */
-#define SO_ACCEPTCONN   0x0002          /* socket has had listen() */
-#define SO_REUSEADDR    0x0004          /* allow local address reuse */
-#define SO_KEEPALIVE    0x0008          /* keep connections alive */
-#define SO_DONTROUTE    0x0010          /* just use interface addresses */
-#define SO_BROADCAST    0x0020          /* permit sending of broadcast msgs */
-#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
-#define SO_USELOOPBACK  0x0040          /* bypass hardware when possible */
-#define SO_LINGER       0x0080          /* linger on close if data present (in ticks) */
-#define SO_LINGER_SEC   0x1080          /* linger on close if data present (in seconds) */
-#else
-#define SO_LINGER       0x1080          /* linger on close if data present (in seconds) */
-#endif  /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
-#define SO_OOBINLINE    0x0100          /* leave received OOB data in line */
-#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
-#define SO_REUSEPORT    0x0200          /* allow local address & port reuse */
-#define SO_TIMESTAMP    0x0400          /* timestamp received dgram traffic */
-#define SO_TIMESTAMP_MONOTONIC  0x0800  /* Monotonically increasing timestamp on rcvd dgram */
-#ifndef __APPLE__
-#define SO_ACCEPTFILTER 0x1000          /* there is an accept filter */
-#else
-#define SO_DONTTRUNC    0x2000          /* APPLE: Retain unread data */
-                                        /*  (ATOMIC proto) */
-#define SO_WANTMORE     0x4000          /* APPLE: Give hint when more data ready */
+#define	SO_DEBUG	0x0001		/* turn on debugging info recording */
+#define	SO_ACCEPTCONN	0x0002		/* socket has had listen() */
+#define	SO_REUSEADDR	0x0004		/* allow local address reuse */
+#define	SO_KEEPALIVE	0x0008		/* keep connections alive */
+#define	SO_DONTROUTE	0x0010		/* just use interface addresses */
+#define	SO_BROADCAST	0x0020		/* permit sending of broadcast msgs */
+#define	SO_USELOOPBACK	0x0040		/* bypass hardware when possible */
+#define	SO_LINGER	0x0080		/* linger on close if data present */
+#define	SO_OOBINLINE	0x0100		/* leave received OOB data in line */
+#define	SO_REUSEPORT	0x0200		/* allow local address & port reuse */
+#define	SO_TIMESTAMP	0x0400		/* timestamp received dgram traffic */
+
+#define SO_DONTTRUNC	0x2000		/* APPLE: Retain unread data */
+					/*  (ATOMIC proto) */
+#define SO_WANTMORE	0x4000		/* APPLE: Give hint when more data ready */
 #define SO_WANTOOBFLAG  0x8000          /* APPLE: Want OOB in MSG_FLAG on receive */
 
-#ifdef PRIVATE
-/* See socket_private.h for extended flags */
-#endif
-
-#endif  /* (!__APPLE__) */
-#endif  /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
-
 /*
  * Additional options, not kept in so_options.
  */
-#define SO_SNDBUF       0x1001          /* send buffer size */
-#define SO_RCVBUF       0x1002          /* receive buffer size */
-#define SO_SNDLOWAT     0x1003          /* send low-water mark */
-#define SO_RCVLOWAT     0x1004          /* receive low-water mark */
-#define SO_SNDTIMEO     0x1005          /* send timeout */
-#define SO_RCVTIMEO     0x1006          /* receive timeout */
-#define SO_ERROR        0x1007          /* get error status and clear */
-#define SO_TYPE         0x1008          /* get socket type */
-#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
-#define SO_LABEL        0x1010          /* deprecated */
-#define SO_PEERLABEL    0x1011          /* deprecated */
-#ifdef __APPLE__
-#define SO_NREAD        0x1020          /* APPLE: get 1st-packet byte count */
-#define SO_NKE          0x1021          /* APPLE: Install socket-level NKE */
-#define SO_NOSIGPIPE    0x1022          /* APPLE: No SIGPIPE on EPIPE */
-#define SO_NOADDRERR    0x1023          /* APPLE: Returns EADDRNOTAVAIL when src is not available anymore */
-#define SO_NWRITE       0x1024          /* APPLE: Get number of bytes currently in send socket buffer */
-#define SO_REUSESHAREUID        0x1025          /* APPLE: Allow reuse of port/socket by different userids */
-#ifdef __APPLE_API_PRIVATE
-#define SO_NOTIFYCONFLICT       0x1026  /* APPLE: send notification if there is a bind on a port which is already in use */
-#define SO_UPCALLCLOSEWAIT      0x1027  /* APPLE: block on close until an upcall returns */
-#endif
-#ifdef PRIVATE
-/* See socket_private.h for extended options */
-#endif /* PRIVATE */
-#define SO_RANDOMPORT   0x1082  /* APPLE: request local port randomization */
-#define SO_NP_EXTENSIONS        0x1083  /* To turn off some POSIX behavior */
-#endif
-
-#define SO_NUMRCVPKT            0x1112  /* number of datagrams in receive socket buffer */
-#ifdef PRIVATE
-/* See socket_private.h for extended options */
-#endif /* PRIVATE */
-#define SO_NET_SERVICE_TYPE     0x1116  /* Network service type */
-
-#ifdef PRIVATE
-/* See socket_private.h for extended options */
-#endif /* PRIVATE */
-
-#define SO_NETSVC_MARKING_LEVEL    0x1119  /* Get QoS marking in effect for socket */
-
-#ifdef PRIVATE
-/* See socket_private.h for extended options */
-#endif /* PRIVATE */
-
-#define SO_RESOLVER_SIGNATURE      0x1131  /* A signed data blob from the system resolver */
-#ifdef PRIVATE
-/* See socket_private.h for extended options */
-#endif
-
-#define SO_BINDTODEVICE            0x1134  /* bind socket to a network device (max valid option length IFNAMSIZ) */
-#ifdef PRIVATE
-/* See socket_private.h for extended options */
-#endif
-
-/* When adding new socket-options, you need to make sure MPTCP supports these as well! */
-
-/*
- * Network Service Type for option SO_NET_SERVICE_TYPE
- *
- * The vast majority of sockets should use Best Effort that is the default
- * Network Service Type. Other Network Service Types have to be used only if
- * the traffic actually matches the description of the Network Service Type.
- *
- * Network Service Types do not represent priorities but rather describe
- * different categories of delay, jitter and loss parameters.
- * Those parameters may influence protocols from layer 4 protocols like TCP
- * to layer 2 protocols like Wi-Fi. The Network Service Type can determine
- * how the traffic is queued and scheduled by the host networking stack and
- * by other entities on the network like switches and routers. For example
- * for Wi-Fi, the Network Service Type can select the marking of the
- * layer 2 packet with the appropriate WMM Access Category.
- *
- * There is no point in attempting to game the system and use
- * a Network Service Type that does not correspond to the actual
- * traffic characteristic but one that seems to have a higher precedence.
- * The reason is that for service classes that have lower tolerance
- * for delay and jitter, the queues size is lower than for service
- * classes that are more tolerant to delay and jitter.
- *
- * For example using a voice service type for bulk data transfer will lead
- * to disastrous results as soon as congestion happens because the voice
- * queue overflows and packets get dropped. This is not only bad for the bulk
- * data transfer but it is also bad for VoIP apps that legitimately are using
- * the voice  service type.
- *
- * The characteristics of the Network Service Types are based on the service
- * classes defined in RFC 4594 "Configuration Guidelines for DiffServ Service
- * Classes"
- *
- * When system detects the outgoing interface belongs to a DiffServ domain
- * that follows the recommendation of the IETF draft "Guidelines for DiffServ to
- * IEEE 802.11 Mapping", the packet will marked at layer 3 with a DSCP value
- * that corresponds to Network Service Type.
- *
- * NET_SERVICE_TYPE_BE
- *	"Best Effort", unclassified/standard.  This is the default service
- *	class and cover the majority of the traffic.
- *
- * NET_SERVICE_TYPE_BK
- *	"Background", high delay tolerant, loss tolerant. elastic flow,
- *	variable size & long-lived. E.g: non-interactive network bulk transfer
- *	like synching or backup.
- *
- * NET_SERVICE_TYPE_RD
- *	"Responsive Data", a notch higher than "Best Effort", medium delay
- *	tolerant, elastic & inelastic flow, bursty, long-lived. E.g. email,
- *	instant messaging, for which there is a sense of interactivity and
- *	urgency (user waiting for output).
- *
- * NET_SERVICE_TYPE_OAM
- *	"Operations, Administration, and Management", medium delay tolerant,
- *	low-medium loss tolerant, elastic & inelastic flows, variable size.
- *	E.g. VPN tunnels.
- *
- * NET_SERVICE_TYPE_AV
- *	"Multimedia Audio/Video Streaming", medium delay tolerant, low-medium
- *	loss tolerant, elastic flow, constant packet interval, variable rate
- *	and size. E.g. video and audio playback with buffering.
- *
- * NET_SERVICE_TYPE_RV
- *	"Responsive Multimedia Audio/Video", low delay tolerant, low-medium
- *	loss tolerant, elastic flow, variable packet interval, rate and size.
- *	E.g. screen sharing.
- *
- * NET_SERVICE_TYPE_VI
- *	"Interactive Video", low delay tolerant, low-medium loss tolerant,
- *	elastic flow, constant packet interval, variable rate & size. E.g.
- *	video telephony.
- *
- * NET_SERVICE_TYPE_SIG
- *	"Signaling", low delay tolerant, low loss tolerant, inelastic flow,
- *	jitter tolerant, rate is bursty but short, variable size. E.g. SIP.
- *
- * NET_SERVICE_TYPE_VO
- *	"Interactive Voice", very low delay tolerant, very low loss tolerant,
- *	inelastic flow, constant packet rate, somewhat fixed size.
- *	E.g. VoIP.
- */
-
-#define NET_SERVICE_TYPE_BE     0 /* Best effort */
-#define NET_SERVICE_TYPE_BK     1 /* Background system initiated */
-#define NET_SERVICE_TYPE_SIG    2 /* Signaling */
-#define NET_SERVICE_TYPE_VI     3 /* Interactive Video */
-#define NET_SERVICE_TYPE_VO     4 /* Interactive Voice */
-#define NET_SERVICE_TYPE_RV     5 /* Responsive Multimedia Audio/Video */
-#define NET_SERVICE_TYPE_AV     6 /* Multimedia Audio/Video Streaming */
-#define NET_SERVICE_TYPE_OAM    7 /* Operations, Administration, and Management */
-#define NET_SERVICE_TYPE_RD     8 /* Responsive Data */
-
-#if PRIVATE
-/* See socket_private.h for extended types */
-#endif /* PRIVATE */
-
-/* These are supported values for SO_NETSVC_MARKING_LEVEL */
-#define NETSVC_MRKNG_UNKNOWN            0       /* The outgoing network interface is not known */
-#define NETSVC_MRKNG_LVL_L2             1       /* Default marking at layer 2 (for example Wi-Fi WMM) */
-#define NETSVC_MRKNG_LVL_L3L2_ALL       2       /* Layer 3 DSCP marking and layer 2 marking for all Network Service Types */
-#define NETSVC_MRKNG_LVL_L3L2_BK        3       /* The system policy limits layer 3 DSCP marking and layer 2 marking
-	                                         * to background Network Service Types */
-
-
-typedef __uint32_t sae_associd_t;
-#define SAE_ASSOCID_ANY 0
-#define SAE_ASSOCID_ALL ((sae_associd_t)(-1ULL))
-
-typedef __uint32_t sae_connid_t;
-#define SAE_CONNID_ANY  0
-#define SAE_CONNID_ALL  ((sae_connid_t)(-1ULL))
-
-/* connectx() flag parameters */
-#define CONNECT_RESUME_ON_READ_WRITE    0x1 /* resume connect() on read/write */
-#define CONNECT_DATA_IDEMPOTENT         0x2 /* data is idempotent */
-#define CONNECT_DATA_AUTHENTICATED      0x4 /* data includes security that replaces the TFO-cookie */
-
-/* sockaddr endpoints */
-typedef struct sa_endpoints {
-	unsigned int            sae_srcif;      /* optional source interface */
-	const struct sockaddr   *sae_srcaddr;   /* optional source address */
-	socklen_t               sae_srcaddrlen; /* size of source address */
-	const struct sockaddr   *sae_dstaddr;   /* destination address */
-	socklen_t               sae_dstaddrlen; /* size of destination address */
-} sa_endpoints_t;
-#endif  /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
+#define SO_SNDBUF	0x1001		/* send buffer size */
+#define SO_RCVBUF	0x1002		/* receive buffer size */
+#define SO_SNDLOWAT	0x1003		/* send low-water mark */
+#define SO_RCVLOWAT	0x1004		/* receive low-water mark */
+#define SO_SNDTIMEO	0x1005		/* send timeout */
+#define SO_RCVTIMEO	0x1006		/* receive timeout */
+#define	SO_ERROR	0x1007		/* get error status and clear */
+#define	SO_TYPE		0x1008		/* get socket type */
+#define	SO_PRIVSTATE	0x1009		/* get/deny privileged state */
+#define SO_NREAD	0x1020		/* APPLE: get 1st-packet byte count */
+#define SO_NKE		0x1021		/* APPLE: Install socket-level NKE */
 
 /*
  * Structure used for manipulating linger option.
  */
-struct  linger {
-	int     l_onoff;                /* option on/off */
-	int     l_linger;               /* linger time */
-};
-
-#ifndef __APPLE__
-struct  accept_filter_arg {
-	char    af_name[16];
-	char    af_arg[256 - 16];
-};
-#endif
-
-#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
-#ifdef __APPLE__
-
-/*
- * Structure to control non-portable Sockets extension to POSIX
- */
-struct so_np_extensions {
-	u_int32_t       npx_flags;
-	u_int32_t       npx_mask;
-};
-
-#define SONPX_SETOPTSHUT        0x000000001     /* flag for allowing setsockopt after shutdown */
-
-
-#endif
-#endif
+struct	linger {
+	int	l_onoff;		/* option on/off */
+	int	l_linger;		/* linger time */
+};
 
 /*
  * Level number for (get/set)sockopt() to apply to socket itself.
  */
-#define SOL_SOCKET      0xffff          /* options for socket level */
-
+#define	SOL_SOCKET	0xffff		/* options for socket level */
 
 /*
  * Address families.
  */
-#define AF_UNSPEC       0               /* unspecified */
-#define AF_UNIX         1               /* local to host (pipes) */
-#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
-#define AF_LOCAL        AF_UNIX         /* backward compatibility */
-#endif  /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
-#define AF_INET         2               /* internetwork: UDP, TCP, etc. */
-#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
-#define AF_IMPLINK      3               /* arpanet imp addresses */
-#define AF_PUP          4               /* pup protocols: e.g. BSP */
-#define AF_CHAOS        5               /* mit CHAOS protocols */
-#define AF_NS           6               /* XEROX NS protocols */
-#define AF_ISO          7               /* ISO protocols */
-#define AF_OSI          AF_ISO
-#define AF_ECMA         8               /* European computer manufacturers */
-#define AF_DATAKIT      9               /* datakit protocols */
-#define AF_CCITT        10              /* CCITT protocols, X.25 etc */
-#define AF_SNA          11              /* IBM SNA */
-#define AF_DECnet       12              /* DECnet */
-#define AF_DLI          13              /* DEC Direct data link interface */
-#define AF_LAT          14              /* LAT */
-#define AF_HYLINK       15              /* NSC Hyperchannel */
-#define AF_APPLETALK    16              /* Apple Talk */
-#define AF_ROUTE        17              /* Internal Routing Protocol */
-#define AF_LINK         18              /* Link layer interface */
-#define pseudo_AF_XTP   19              /* eXpress Transfer Protocol (no AF) */
-#define AF_COIP         20              /* connection-oriented IP, aka ST II */
-#define AF_CNT          21              /* Computer Network Technology */
-#define pseudo_AF_RTIP  22              /* Help Identify RTIP packets */
-#define AF_IPX          23              /* Novell Internet Protocol */
-#define AF_SIP          24              /* Simple Internet Protocol */
-#define pseudo_AF_PIP   25              /* Help Identify PIP packets */
-#define AF_NDRV         27              /* Network Driver 'raw' access */
-#define AF_ISDN         28              /* Integrated Services Digital Network */
-#define AF_E164         AF_ISDN         /* CCITT E.164 recommendation */
-#define pseudo_AF_KEY   29              /* Internal key-management function */
-#endif  /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
-#define AF_INET6        30              /* IPv6 */
-#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
-#define AF_NATM         31              /* native ATM access */
-#define AF_SYSTEM       32              /* Kernel event messages */
-#define AF_NETBIOS      33              /* NetBIOS */
-#define AF_PPP          34              /* PPP communication protocol */
-#define pseudo_AF_HDRCMPLT 35           /* Used by BPF to not rewrite headers
-	                                 *  in interface output routine */
-#ifdef PRIVATE
-/* See socket_private.h for extended families */
-#else
-#define AF_RESERVED_36  36              /* Reserved for internal usage */
-#endif
-#define AF_IEEE80211    37              /* IEEE 802.11 protocol */
-#define AF_UTUN         38
-#ifdef PRIVATE
-/* See socket_private.h for extended families */
-#endif /* PRIVATE */
-#define AF_VSOCK        40              /* VM Sockets */
-#define AF_MAX          41
-#endif  /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
-
-/*
- * [XSI] Structure used by kernel to store most addresses.
+#define	AF_UNSPEC	0		/* unspecified */
+#define	AF_LOCAL	1		/* local to host (pipes, portals) */
+#define	AF_UNIX		AF_LOCAL	/* backward compatibility */
+#define	AF_INET		2		/* internetwork: UDP, TCP, etc. */
+#define	AF_IMPLINK	3		/* arpanet imp addresses */
+#define	AF_PUP		4		/* pup protocols: e.g. BSP */
+#define	AF_CHAOS	5		/* mit CHAOS protocols */
+#define	AF_NS		6		/* XEROX NS protocols */
+#define	AF_ISO		7		/* ISO protocols */
+#define	AF_OSI		AF_ISO
+#define	AF_ECMA		8		/* european computer manufacturers */
+#define	AF_DATAKIT	9		/* datakit protocols */
+#define	AF_CCITT	10		/* CCITT protocols, X.25 etc */
+#define	AF_SNA		11		/* IBM SNA */
+#define AF_DECnet	12		/* DECnet */
+#define AF_DLI		13		/* DEC Direct data link interface */
+#define AF_LAT		14		/* LAT */
+#define	AF_HYLINK	15		/* NSC Hyperchannel */
+#define	AF_APPLETALK	16		/* Apple Talk */
+#define	AF_ROUTE	17		/* Internal Routing Protocol */
+#define	AF_LINK		18		/* Link layer interface */
+#define	pseudo_AF_XTP	19		/* eXpress Transfer Protocol (no AF) */
+#define	AF_COIP		20		/* connection-oriented IP, aka ST II */
+#define	AF_CNT		21		/* Computer Network Technology */
+#define pseudo_AF_RTIP	22		/* Help Identify RTIP packets */
+#define	AF_IPX		23		/* Novell Internet Protocol */
+#define	AF_SIP		24		/* Simple Internet Protocol */
+#define pseudo_AF_PIP	25		/* Help Identify PIP packets */
+					/* Sigh - The following 2 should */
+					/*  be maintained for MacOSX */
+					/*  binary compatibility */
+#define pseudo_AF_BLUE	26		/* Identify packets for Blue Box */
+#define AF_NDRV		27		/* Network Driver 'raw' access */
+#define	AF_ISDN		28		/* Integrated Services Digital Network*/
+#define	AF_E164		AF_ISDN		/* CCITT E.164 recommendation */
+#define	pseudo_AF_KEY	29		/* Internal key-management function */
+#define	AF_INET6	30		/* IPv6 */
+#define	AF_NATM		31		/* native ATM access */
+#define AF_SYSTEM	32              /* Kernel event messages */
+#define AF_NETBIOS	33		/* NetBIOS */
+#define AF_PPP		34		/* PPP communication protocol */
+
+#define	AF_MAX		35
+
+/*
+ * Structure used by kernel to store most
+ * addresses.
  */
 struct sockaddr {
-	__uint8_t       sa_len;         /* total length */
-	sa_family_t     sa_family;      /* [XSI] address family */
-	char            sa_data[14];    /* [XSI] addr value */
-};
-__CCT_DECLARE_CONSTRAINED_PTR_TYPES(struct sockaddr, sockaddr);
-
-/*
- * Least amount of information that a sockaddr requires.
- * Sockaddr_header is a compatible prefix structure of
- * all sockaddr objects.
- */
-struct __sockaddr_header {
-	__uint8_t           sa_len;
-	sa_family_t         sa_family;
-};
-
-#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
-#define SOCK_MAXADDRLEN 255             /* longest possible addresses */
+	u_char	sa_len;			/* total length */
+	u_char	sa_family;		/* address family */
+	char	sa_data[14];		/* actually longer; address value */
+};
+#define	SOCK_MAXADDRLEN	255		/* longest possible addresses */
 
 /*
  * Structure used by kernel to pass protocol
  * information in raw sockets.
  */
 struct sockproto {
-	__uint16_t      sp_family;              /* address family */
-	__uint16_t      sp_protocol;            /* protocol */
-};
-#endif  /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
-
-/*
- * RFC 2553: protocol-independent placeholder for socket addresses
- */
-#define _SS_MAXSIZE     128
-#define _SS_ALIGNSIZE   (sizeof(__int64_t))
-#define _SS_PAD1SIZE    \
-	        (_SS_ALIGNSIZE - sizeof(__uint8_t) - sizeof(sa_family_t))
-#define _SS_PAD2SIZE    \
-	        (_SS_MAXSIZE - sizeof(__uint8_t) - sizeof(sa_family_t) - \
-	                        _SS_PAD1SIZE - _SS_ALIGNSIZE)
-
-/*
- * [XSI] sockaddr_storage
- */
+	u_short	sp_family;		/* address family */
+	u_short	sp_protocol;		/* protocol */
+};
+
+#if 1
+/*
+ * bsd-api-new-02a: protocol-independent placeholder for socket addresses
+ */
+#define _SS_MAXSIZE	128
+#define _SS_ALIGNSIZE	(sizeof(int64_t))
+#define _SS_PAD1SIZE	(_SS_ALIGNSIZE - sizeof(u_char) * 2)
+#define _SS_PAD2SIZE	(_SS_MAXSIZE - sizeof(u_char) * 2 - \
+				_SS_PAD1SIZE - _SS_ALIGNSIZE)
+
 struct sockaddr_storage {
-	__uint8_t       ss_len;         /* address length */
-	sa_family_t     ss_family;      /* [XSI] address family */
-	char                    __ss_pad1[_SS_PAD1SIZE];
-	__int64_t       __ss_align;     /* force structure storage alignment */
-	char                    __ss_pad2[_SS_PAD2SIZE];
-};
-__CCT_DECLARE_CONSTRAINED_PTR_TYPES(struct sockaddr_storage, sockaddr_storage);
+	u_char ss_len;		/* address length */
+	u_char ss_family;	/* address family */
+	char _ss_pad1[_SS_PAD1SIZE];
+	int64_t _ss_align;	/* force desired structure storage alignment */
+	char _ss_pad2[_SS_PAD2SIZE];
+};
+#endif
 
 /*
  * Protocol families, same as address families for now.
  */
-#define PF_UNSPEC       AF_UNSPEC
-#define PF_LOCAL        AF_LOCAL
-#define PF_UNIX         PF_LOCAL        /* backward compatibility */
-#define PF_INET         AF_INET
-#define PF_IMPLINK      AF_IMPLINK
-#define PF_PUP          AF_PUP
-#define PF_CHAOS        AF_CHAOS
-#define PF_NS           AF_NS
-#define PF_ISO          AF_ISO
-#define PF_OSI          AF_ISO
-#define PF_ECMA         AF_ECMA
-#define PF_DATAKIT      AF_DATAKIT
-#define PF_CCITT        AF_CCITT
-#define PF_SNA          AF_SNA
-#define PF_DECnet       AF_DECnet
-#define PF_DLI          AF_DLI
-#define PF_LAT          AF_LAT
-#define PF_HYLINK       AF_HYLINK
-#define PF_APPLETALK    AF_APPLETALK
-#define PF_ROUTE        AF_ROUTE
-#define PF_LINK         AF_LINK
-#define PF_XTP          pseudo_AF_XTP   /* really just proto family, no AF */
-#define PF_COIP         AF_COIP
-#define PF_CNT          AF_CNT
-#define PF_SIP          AF_SIP
-#define PF_IPX          AF_IPX          /* same format as AF_NS */
-#define PF_RTIP         pseudo_AF_RTIP  /* same format as AF_INET */
-#define PF_PIP          pseudo_AF_PIP
-#define PF_NDRV         AF_NDRV
-#define PF_ISDN         AF_ISDN
-#define PF_KEY          pseudo_AF_KEY
-#define PF_INET6        AF_INET6
-#define PF_NATM         AF_NATM
-#define PF_SYSTEM       AF_SYSTEM
-#define PF_NETBIOS      AF_NETBIOS
-#define PF_PPP          AF_PPP
-#ifdef PRIVATE
-/* See socket_private.h for extended families */
-#else
-#define PF_RESERVED_36  AF_RESERVED_36
-#endif
-#define PF_UTUN         AF_UTUN
-#ifdef PRIVATE
-/* See socket_private.h for extended families */
-#endif /* PRIVATE */
-#define PF_VSOCK        AF_VSOCK
-#define PF_MAX          AF_MAX
-
-/*
- * These do not have socket-layer support:
- */
-#define PF_VLAN         ((uint32_t)0x766c616e)  /* 'vlan' */
-#define PF_BOND         ((uint32_t)0x626f6e64)  /* 'bond' */
+#define	PF_UNSPEC	AF_UNSPEC
+#define	PF_LOCAL	AF_LOCAL
+#define	PF_UNIX		PF_LOCAL	/* backward compatibility */
+#define	PF_INET		AF_INET
+#define	PF_INET6	AF_INET6
+#define	PF_IMPLINK	AF_IMPLINK
+#define	PF_PUP		AF_PUP
+#define	PF_CHAOS	AF_CHAOS
+#define	PF_NS		AF_NS
+#define	PF_ISO		AF_ISO
+#define	PF_OSI		AF_ISO
+#define	PF_ECMA		AF_ECMA
+#define	PF_DATAKIT	AF_DATAKIT
+#define	PF_CCITT	AF_CCITT
+#define	PF_SNA		AF_SNA
+#define PF_DECnet	AF_DECnet
+#define PF_DLI		AF_DLI
+#define PF_LAT		AF_LAT
+#define	PF_HYLINK	AF_HYLINK
+#define	PF_APPLETALK	AF_APPLETALK
+#define	PF_ROUTE	AF_ROUTE
+#define	PF_LINK		AF_LINK
+#define	PF_XTP		pseudo_AF_XTP	/* really just proto family, no AF */
+#define	PF_COIP		AF_COIP
+#define	PF_CNT		AF_CNT
+#define	PF_SIP		AF_SIP
+#define	PF_IPX		AF_IPX		/* same format as AF_NS */
+#define PF_RTIP		pseudo_AF_RTIP	/* same format as AF_INET */
+#define PF_PIP		pseudo_AF_PIP
+
+#define PF_NDRV		AF_NDRV
+#define	PF_ISDN		AF_ISDN
+#define	PF_KEY		pseudo_AF_KEY
+#define	PF_INET6	AF_INET6
+#define	PF_NATM		AF_NATM
+#define	PF_ATM		AF_ATM
+#define PF_SYSTEM	AF_SYSTEM
+#define PF_NETBIOS	AF_NETBIOS
+#define PF_PPP		AF_PPP
+
+#define	PF_MAX		AF_MAX
 
 /*
  * Definitions for network related sysctl, CTL_NET.
@@ -562,8 +260,40 @@
  *
  * Further levels are defined by the individual families below.
  */
-#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
-#define NET_MAXID       AF_MAX
+#define NET_MAXID	AF_MAX
+
+#define CTL_NET_NAMES { \
+	{ 0, 0 }, \
+	{ "local", CTLTYPE_NODE }, \
+	{ "inet", CTLTYPE_NODE }, \
+	{ "implink", CTLTYPE_NODE }, \
+	{ "pup", CTLTYPE_NODE }, \
+	{ "chaos", CTLTYPE_NODE }, \
+	{ "xerox_ns", CTLTYPE_NODE }, \
+	{ "iso", CTLTYPE_NODE }, \
+	{ "emca", CTLTYPE_NODE }, \
+	{ "datakit", CTLTYPE_NODE }, \
+	{ "ccitt", CTLTYPE_NODE }, \
+	{ "ibm_sna", CTLTYPE_NODE }, \
+	{ "decnet", CTLTYPE_NODE }, \
+	{ "dec_dli", CTLTYPE_NODE }, \
+	{ "lat", CTLTYPE_NODE }, \
+	{ "hylink", CTLTYPE_NODE }, \
+	{ "appletalk", CTLTYPE_NODE }, \
+	{ "route", CTLTYPE_NODE }, \
+	{ "link_layer", CTLTYPE_NODE }, \
+	{ "xtp", CTLTYPE_NODE }, \
+	{ "coip", CTLTYPE_NODE }, \
+	{ "cnt", CTLTYPE_NODE }, \
+	{ "rtip", CTLTYPE_NODE }, \
+	{ "ipx", CTLTYPE_NODE }, \
+	{ "sip", CTLTYPE_NODE }, \
+	{ "pip", CTLTYPE_NODE }, \
+	{ "isdn", CTLTYPE_NODE }, \
+	{ "key", CTLTYPE_NODE }, \
+	{ "inet6", CTLTYPE_NODE }, \
+	{ "natm", CTLTYPE_NODE }, \
+}
 
 /*
  * PF_ROUTE - Routing table
@@ -573,75 +303,52 @@
  *	Fifth: type of info, defined below
  *	Sixth: flag(s) to mask with for NET_RT_FLAGS
  */
-#define NET_RT_DUMP             1       /* dump; may limit to a.f. */
-#define NET_RT_FLAGS            2       /* by flags, e.g. RESOLVING */
-#define NET_RT_IFLIST           3       /* survey interface list */
-#define NET_RT_STAT             4       /* routing statistics */
-#define NET_RT_TRASH            5       /* routes not in table but not freed */
-#define NET_RT_IFLIST2          6       /* interface list with addresses */
-#define NET_RT_DUMP2            7       /* dump; may limit to a.f. */
-#ifdef PRIVATE
-/* See socket_private.h for extended types */
-#endif /* PRIVATE */
-/*
- * Allows read access non-local host's MAC address
- * if the process has neighbor cache entitlement.
- */
-#define NET_RT_FLAGS_PRIV       10
-#define NET_RT_MAXID            11
-#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */
+#define NET_RT_DUMP	1		/* dump; may limit to a.f. */
+#define NET_RT_FLAGS	2		/* by flags, e.g. RESOLVING */
+#define NET_RT_IFLIST	3		/* survey interface list */
+#define	NET_RT_MAXID	4
+
+#define CTL_NET_RT_NAMES { \
+	{ 0, 0 }, \
+	{ "dump", CTLTYPE_STRUCT }, \
+	{ "flags", CTLTYPE_STRUCT }, \
+	{ "iflist", CTLTYPE_STRUCT }, \
+}
 
 /*
  * Maximum queue length specifiable by listen.
  */
-#define SOMAXCONN       128
-
-/*
- * [XSI] Message header for recvmsg and sendmsg calls.
+#define	SOMAXCONN	128
+
+/*
+ * Message header for recvmsg and sendmsg calls.
  * Used value-result for recvmsg, value only for sendmsg.
  */
 struct msghdr {
-	void            *__sized_by(msg_namelen) msg_name; /* [XSI] optional address */
-	socklen_t       msg_namelen;    /* [XSI] size of address */
-	struct          iovec *msg_iov; /* [XSI] scatter/gather array */
-	int             msg_iovlen;     /* [XSI] # elements in msg_iov */
-	void            *__sized_by(msg_controllen) msg_control; /* [XSI] ancillary data, see below */
-	socklen_t       msg_controllen; /* [XSI] ancillary data buffer len */
-	int             msg_flags;      /* [XSI] flags on received message */
-};
-
-#define MSG_OOB         0x1             /* process out-of-band data */
-#define MSG_PEEK        0x2             /* peek at incoming message */
-#define MSG_DONTROUTE   0x4             /* send without using routing tables */
-#define MSG_EOR         0x8             /* data completes record */
-#define MSG_TRUNC       0x10            /* data discarded before delivery */
-#define MSG_CTRUNC      0x20            /* control data lost before delivery */
-#define MSG_WAITALL     0x40            /* wait for full request or error */
-#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
-#define MSG_DONTWAIT    0x80            /* this message should be nonblocking */
-#define MSG_EOF         0x100           /* data completes connection */
-#ifdef __APPLE__
-#ifdef __APPLE_API_OBSOLETE
-#define MSG_WAITSTREAM  0x200           /* wait up to full request.. may return partial */
-#endif
-#define MSG_FLUSH       0x400           /* Start of 'hold' seq; dump so_temp, deprecated */
-#define MSG_HOLD        0x800           /* Hold frag in so_temp, deprecated */
-#define MSG_SEND        0x1000          /* Send the packet in so_temp, deprecated */
-#define MSG_HAVEMORE    0x2000          /* Data ready to be read */
-#define MSG_RCVMORE     0x4000          /* Data remains in current pkt */
-#endif
-#define MSG_NEEDSA      0x10000         /* Fail receive if socket address cannot be allocated */
-#endif  /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
-
-#if __DARWIN_C_LEVEL >= 200809L
-#define MSG_NOSIGNAL    0x80000         /* do not generate SIGPIPE on EOF */
-#endif /* __DARWIN_C_LEVEL */
-
-#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
-#ifdef  KERNEL
-#define MSG_USEUPCALL   0x80000000      /* Inherit upcall in sock_accept */
-#endif
-#endif  /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
+	caddr_t	msg_name;		/* optional address */
+	u_int	msg_namelen;		/* size of address */
+	struct	iovec *msg_iov;		/* scatter/gather array */
+	u_int	msg_iovlen;		/* # elements in msg_iov */
+	caddr_t	msg_control;		/* ancillary data, see below */
+	u_int	msg_controllen;		/* ancillary data buffer len */
+	int	msg_flags;		/* flags on received message */
+};
+
+#define	MSG_OOB		0x1		/* process out-of-band data */
+#define	MSG_PEEK	0x2		/* peek at incoming message */
+#define	MSG_DONTROUTE	0x4		/* send without using routing tables */
+#define	MSG_EOR		0x8		/* data completes record */
+#define	MSG_TRUNC	0x10		/* data discarded before delivery */
+#define	MSG_CTRUNC	0x20		/* control data lost before delivery */
+#define	MSG_WAITALL	0x40		/* wait for full request or error */
+#define	MSG_DONTWAIT	0x80		/* this message should be nonblocking */
+#define	MSG_EOF		0x100		/* data completes connection */
+#define MSG_FLUSH	0x400		/* Start of 'hold' seq; dump so_temp */
+#define MSG_HOLD	0x800		/* Hold frag in so_temp */
+#define MSG_SEND	0x1000		/* Send the packet in so_temp */
+#define MSG_HAVEMORE	0x2000		/* Data ready to be read */
+#define MSG_RCVMORE	0x4000		/* Data remains in current pkt */
+#define MSG_COMPAT      0x8000		/* used in sendit() */
 
 /*
  * Header for ancillary data objects in msg_control buffer.
@@ -650,185 +357,104 @@
  * of message elements headed by cmsghdr structures.
  */
 struct cmsghdr {
-	socklen_t       cmsg_len;       /* [XSI] data byte count, including hdr */
-	int             cmsg_level;     /* [XSI] originating protocol */
-	int             cmsg_type;      /* [XSI] protocol-specific type */
-/* followed by	unsigned char  cmsg_data[]; */
-};
-
-#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
-#ifndef __APPLE__
-/*
- * While we may have more groups than this, the cmsgcred struct must
- * be able to fit in an mbuf, and NGROUPS_MAX is too large to allow
- * this.
- */
-#define CMGROUP_MAX 16
-
-/*
- * Credentials structure, used to verify the identity of a peer
- * process that has sent us a message. This is allocated by the
- * peer process but filled in by the kernel. This prevents the
- * peer from lying about its identity. (Note that cmcred_groups[0]
- * is the effective GID.)
- */
-struct cmsgcred {
-	pid_t   cmcred_pid;             /* PID of sending process */
-	uid_t   cmcred_uid;             /* real UID of sending process */
-	uid_t   cmcred_euid;            /* effective UID of sending process */
-	gid_t   cmcred_gid;             /* real GID of sending process */
-	short   cmcred_ngroups;         /* number or groups */
-	gid_t   cmcred_groups[CMGROUP_MAX];     /* groups */
+	u_int	cmsg_len;		/* data byte count, including hdr */
+	int	cmsg_level;		/* originating protocol */
+	int	cmsg_type;		/* protocol-specific type */
+/* followed by	u_char  cmsg_data[]; */
+};
+
+/* given pointer to struct cmsghdr, return pointer to data */
+#define	CMSG_DATA(cmsg)		((u_char *)((cmsg) + 1))
+
+/* Alignment requirement for CMSG struct manipulation.
+ * This is different from ALIGN() defined in ARCH/include/param.h.
+ * XXX think again carefully about architecture dependencies.
+ */
+#define CMSG_ALIGN(n)		(((n) + 3) & ~3)
+
+/* given pointer to struct cmsghdr, return pointer to next cmsghdr */
+#define	CMSG_NXTHDR(mhdr, cmsg)	\
+	(((caddr_t)(cmsg) + (cmsg)->cmsg_len + sizeof(struct cmsghdr) > \
+	    (mhdr)->msg_control + (mhdr)->msg_controllen) ? \
+	    (struct cmsghdr *)NULL : \
+	    (struct cmsghdr *)((caddr_t)(cmsg) + CMSG_ALIGN((cmsg)->cmsg_len)))
+
+#define	CMSG_FIRSTHDR(mhdr)	((struct cmsghdr *)(mhdr)->msg_control)
+
+#define CMSG_SPACE(l)	(CMSG_ALIGN(sizeof(struct cmsghdr)) + CMSG_ALIGN(l))
+#define CMSG_LEN(l)	(CMSG_ALIGN(sizeof(struct cmsghdr)) + (l))
+
+/* "Socket"-level control message types: */
+#define	SCM_RIGHTS	0x01		/* access rights (array of int) */
+#define	SCM_TIMESTAMP	0x02		/* timestamp (struct timeval) */
+#define	SCM_CREDS	0x03		/* process creds (struct cmsgcred) */
+
+/*
+ * 4.3 compat sockaddr, move to compat file later
+ */
+struct osockaddr {
+	u_short	sa_family;		/* address family */
+	char	sa_data[14];		/* up to 14 bytes of direct address */
+};
+
+/*
+ * 4.3-compat message header (move to compat file later).
+ */
+struct omsghdr {
+	caddr_t	msg_name;		/* optional address */
+	int	msg_namelen;		/* size of address */
+	struct	iovec *msg_iov;		/* scatter/gather array */
+	int	msg_iovlen;		/* # elements in msg_iov */
+	caddr_t	msg_accrights;		/* access rights sent/received */
+	int	msg_accrightslen;
+};
+
+/*
+ * howto arguments for shutdown(2), specified by Posix.1g.
+ */
+#define	SHUT_RD		0		/* shut down the reading side */
+#define	SHUT_WR		1		/* shut down the writing side */
+#define	SHUT_RDWR	2		/* shut down both sides */
+
+#if SENDFILE
+/*
+ * sendfile(2) header/trailer struct
+ */
+struct sf_hdtr {
+	struct iovec *headers;	/* pointer to an array of header struct iovec's */
+	int hdr_cnt;		/* number of header iovec's */
+	struct iovec *trailers;	/* pointer to an array of trailer struct iovec's */
+	int trl_cnt;		/* number of trailer iovec's */
 };
 #endif
-#endif  /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
-
-/* given pointer to struct cmsghdr, return pointer to data */
-#define CMSG_DATA(cmsg)         ((unsigned char *)(cmsg) + \
-	__DARWIN_ALIGN32(sizeof(struct cmsghdr)))
-
-/*
- * RFC 2292 requires to check msg_controllen, in case that the kernel returns
- * an empty list for some reasons.
- */
-#define CMSG_FIRSTHDR(mhdr) \
-	((mhdr)->msg_controllen >= sizeof(struct cmsghdr) ? \
-	    (struct cmsghdr *)(mhdr)->msg_control : \
-	    (struct cmsghdr *)0L)
-
-
-/*
- * Given pointer to struct cmsghdr, return pointer to next cmsghdr
- * RFC 2292 says that CMSG_NXTHDR(mhdr, NULL) is equivalent to CMSG_FIRSTHDR(mhdr)
- */
-#define CMSG_NXTHDR(mhdr, cmsg)                                         \
-	((char *)(cmsg) == (char *)0L ? CMSG_FIRSTHDR(mhdr) :           \
-	    ((((unsigned char *)(cmsg) +                                \
-	    __DARWIN_ALIGN32((__uint32_t)(cmsg)->cmsg_len) +            \
-	    __DARWIN_ALIGN32(sizeof(struct cmsghdr))) >                 \
-	    ((unsigned char *)(mhdr)->msg_control +                     \
-	    (mhdr)->msg_controllen)) ?                                  \
-	        (struct cmsghdr *)0L /* NULL */ :                       \
-	        (struct cmsghdr *)(void *)((unsigned char *)(cmsg) +    \
-	            __DARWIN_ALIGN32((__uint32_t)(cmsg)->cmsg_len))))
-
-#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
-/* RFC 2292 additions */
-#define CMSG_SPACE(l)           (__DARWIN_ALIGN32(sizeof(struct cmsghdr)) + __DARWIN_ALIGN32(l))
-#define CMSG_LEN(l)             (__DARWIN_ALIGN32(sizeof(struct cmsghdr)) + (l))
-
-#ifdef KERNEL
-#define CMSG_ALIGN(n)   ((typeof(n))__DARWIN_ALIGN32(n))
+
+#ifndef	KERNEL
+
+#include <sys/cdefs.h>
+
+__BEGIN_DECLS
+int	accept __P((int, struct sockaddr *, int *));
+int	bind __P((int, const struct sockaddr *, int));
+int	connect __P((int, const struct sockaddr *, int));
+int	getpeername __P((int, struct sockaddr *, int *));
+int	getsockname __P((int, struct sockaddr *, int *));
+int	getsockopt __P((int, int, int, void *, int *));
+int	listen __P((int, int));
+ssize_t	recv __P((int, void *, size_t, int));
+ssize_t	recvfrom __P((int, void *, size_t, int, struct sockaddr *, int *));
+ssize_t	recvmsg __P((int, struct msghdr *, int));
+ssize_t	send __P((int, const void *, size_t, int));
+ssize_t	sendto __P((int, const void *,
+	    size_t, int, const struct sockaddr *, int));
+ssize_t	sendmsg __P((int, const struct msghdr *, int));
+#if SENDFILE
+int	sendfile __P((int, int, off_t, size_t, struct sf_hdtr *, off_t *, int));
 #endif
-#endif  /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
-
-/* "Socket"-level control message types: */
-#define SCM_RIGHTS                      0x01    /* access rights (array of int) */
-#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
-#define SCM_TIMESTAMP                   0x02    /* timestamp (struct timeval) */
-#define SCM_CREDS                       0x03    /* process creds (struct cmsgcred) */
-#define SCM_TIMESTAMP_MONOTONIC         0x04    /* timestamp (uint64_t) */
-
-#endif  /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
-
-/*
- * howto arguments for shutdown(2), specified by Posix.1g.
- */
-#define SHUT_RD         0               /* shut down the reading side */
-#define SHUT_WR         1               /* shut down the writing side */
-#define SHUT_RDWR       2               /* shut down both sides */
-
-#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
-/*
- * sendfile(2) header/trailer struct
- */
-struct sf_hdtr {
-	struct iovec *headers;  /* pointer to an array of header struct iovec's */
-	int hdr_cnt;            /* number of header iovec's */
-	struct iovec *trailers; /* pointer to an array of trailer struct iovec's */
-	int trl_cnt;            /* number of trailer iovec's */
-};
-
-#ifdef KERNEL
-
-/* In-kernel representation */
-struct user_sf_hdtr {
-	user_addr_t headers;    /* pointer to an array of header struct iovec's */
-	int hdr_cnt;            /* number of header iovec's */
-	user_addr_t trailers;   /* pointer to an array of trailer struct iovec's */
-	int trl_cnt;            /* number of trailer iovec's */
-};
-
-/* LP64 user version of struct sf_hdtr */
-struct user64_sf_hdtr {
-	user64_addr_t headers;  /* pointer to an array of header struct iovec's */
-	int hdr_cnt;            /* number of header iovec's */
-	user64_addr_t trailers; /* pointer to an array of trailer struct iovec's */
-	int trl_cnt;            /* number of trailer iovec's */
-};
-
-/* ILP32 user version of struct sf_hdtr */
-struct user32_sf_hdtr {
-	user32_addr_t headers;  /* pointer to an array of header struct iovec's */
-	int hdr_cnt;            /* number of header iovec's */
-	user32_addr_t trailers; /* pointer to an array of trailer struct iovec's */
-	int trl_cnt;            /* number of trailer iovec's */
-};
-
-#endif /* KERNEL */
-
-#endif  /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
-
-#ifndef KERNEL
-__BEGIN_DECLS
-
-int     accept(int, struct sockaddr * __restrict, socklen_t * __restrict)
-__DARWIN_ALIAS_C(accept);
-int     bind(int, const struct sockaddr *, socklen_t) __DARWIN_ALIAS(bind);
-int     connect(int, const struct sockaddr *, socklen_t) __DARWIN_ALIAS_C(connect);
-int     getpeername(int, struct sockaddr * __restrict, socklen_t * __restrict)
-__DARWIN_ALIAS(getpeername);
-int     getsockname(int, struct sockaddr * __restrict, socklen_t * __restrict)
-__DARWIN_ALIAS(getsockname);
-int     getsockopt(int, int, int, void * __restrict, socklen_t * __restrict);
-int     listen(int, int) __DARWIN_ALIAS(listen);
-ssize_t recv(int, void *, size_t, int) __DARWIN_ALIAS_C(recv);
-ssize_t recvfrom(int, void *, size_t, int, struct sockaddr * __restrict,
-    socklen_t * __restrict) __DARWIN_ALIAS_C(recvfrom);
-ssize_t recvmsg(int, struct msghdr *, int) __DARWIN_ALIAS_C(recvmsg);
-ssize_t send(int, const void *, size_t, int) __DARWIN_ALIAS_C(send);
-ssize_t sendmsg(int, const struct msghdr *, int) __DARWIN_ALIAS_C(sendmsg);
-ssize_t sendto(int, const void *, size_t,
-    int, const struct sockaddr *, socklen_t) __DARWIN_ALIAS_C(sendto);
-int     setsockopt(int, int, int, const void *, socklen_t);
-int     shutdown(int, int);
-int     sockatmark(int) __OSX_AVAILABLE_STARTING(__MAC_10_5, __IPHONE_2_0);
-int     socket(int, int, int);
-int     socketpair(int, int, int, int *) __DARWIN_ALIAS(socketpair);
-
-#if !defined(_POSIX_C_SOURCE)
-int     sendfile(int, int, off_t, off_t *, struct sf_hdtr *, int);
-#endif  /* !_POSIX_C_SOURCE */
-
-#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
-void    pfctlinput(int, struct sockaddr *);
-
-__API_AVAILABLE(macosx(10.11), ios(9.0), tvos(9.0), watchos(2.0))
-int connectx(int, const sa_endpoints_t *, sae_associd_t, unsigned int,
-    const struct iovec *, unsigned int, size_t *, sae_connid_t *);
-
-__API_AVAILABLE(macosx(10.11), ios(9.0), tvos(9.0), watchos(2.0))
-int disconnectx(int, sae_associd_t, sae_connid_t);
-#endif  /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
+int	setsockopt __P((int, int, int, const void *, int));
+int	shutdown __P((int, int));
+int	socket __P((int, int, int));
+int	socketpair __P((int, int, int, int *));
 __END_DECLS
+
 #endif /* !KERNEL */
-
-#ifdef KERNEL
-#include <sys/kpi_socket.h>
-#endif
-
-#if defined(PRIVATE) && !defined(MODULES_SUPPORTED)
-#include <sys/socket_private.h>
-#endif
-
 #endif /* !_SYS_SOCKET_H_ */