diff options
| author | darylm503 <darylm503@6f19259b-4bc3-4df7-8a09-765794883524> | 2011-04-27 21:42:16 +0000 |
|---|---|---|
| committer | darylm503 <darylm503@6f19259b-4bc3-4df7-8a09-765794883524> | 2011-04-27 21:42:16 +0000 |
| commit | 2aa62f2bc9a9654687b377d9ca8a8c2c860a3852 (patch) | |
| tree | 62a0991a44327154fb88bf95bd6f7522053db7bb /StdLib/Include/sys/socket.h | |
| parent | 98790d814871cc30bbd536673d3a0948047cd2f0 (diff) | |
| download | edk2-platforms-2aa62f2bc9a9654687b377d9ca8a8c2c860a3852.tar.xz | |
Standard Libraries for EDK II.
This set of three packages: AppPkg, StdLib, StdLibPrivateInternalFiles; contains the implementation of libraries based upon non-UEFI standards such as ISO/IEC-9899, the library portion of the C Language Standard, POSIX, etc.
AppPkg contains applications that make use of the standard libraries defined in the StdLib Package.
StdLib contains header (include) files and the implementations of the standard libraries.
StdLibPrivateInternalFiles contains files for the exclusive use of the library implementations in StdLib. These files should never be directly referenced from applications or other code.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11600 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'StdLib/Include/sys/socket.h')
| -rw-r--r-- | StdLib/Include/sys/socket.h | 570 |
1 files changed, 570 insertions, 0 deletions
diff --git a/StdLib/Include/sys/socket.h b/StdLib/Include/sys/socket.h new file mode 100644 index 0000000000..8cc297d58b --- /dev/null +++ b/StdLib/Include/sys/socket.h @@ -0,0 +1,570 @@ +/* $NetBSD: socket.h,v 1.82 2006/06/27 03:49:08 mrg Exp $ */
+
+/*
+ * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the project nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/*
+ * Copyright (c) 1982, 1985, 1986, 1988, 1993, 1994
+ * The Regents of the University of California. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * @(#)socket.h 8.6 (Berkeley) 5/3/95
+ */
+
+#ifndef _SYS_SOCKET_H_
+#define _SYS_SOCKET_H_
+
+#include <sys/featuretest.h>
+
+/*
+ * Definitions related to sockets: types, address families, options.
+ */
+
+/*
+ * Data types.
+ */
+#include <sys/ansi.h>
+
+#ifndef sa_family_t
+typedef __sa_family_t sa_family_t;
+#define sa_family_t __sa_family_t
+#endif
+
+#ifndef socklen_t
+typedef __socklen_t socklen_t;
+#define socklen_t __socklen_t
+#endif
+
+#include <machine/ansi.h>
+
+#ifdef _BSD_SIZE_T_
+typedef _BSD_SIZE_T_ size_t;
+#undef _BSD_SIZE_T_
+#endif
+
+#ifdef _BSD_SSIZE_T_
+typedef _BSD_SSIZE_T_ ssize_t;
+#undef _BSD_SSIZE_T_
+#endif
+
+#include <sys/uio.h>
+
+/*
+ * Socket types.
+ */
+#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 */
+#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 */
+
+
+/*
+ * 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 */
+#define SO_OVERFLOWED 0x1009 /* datagrams: return packets dropped */
+
+/*
+ * Structure used for manipulating linger option.
+ */
+struct linger {
+ int l_onoff; /* option on/off */
+ int l_linger; /* linger time in seconds */
+};
+
+/*
+ * Level number for (get/set)sockopt() to apply to socket itself.
+ */
+#define SOL_SOCKET 0xffff /* options for socket level */
+
+/*
+ * Address families.
+ */
+#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 */
+#if defined(_NETBSD_SOURCE)
+#define pseudo_AF_XTP 19 /* eXpress Transfer Protocol (no AF) */
+#endif
+#define AF_COIP 20 /* connection-oriented IP, aka ST II */
+#define AF_CNT 21 /* Computer Network Technology */
+#if defined(_NETBSD_SOURCE)
+#define pseudo_AF_RTIP 22 /* Help Identify RTIP packets */
+#endif
+#define AF_IPX 23 /* Novell Internet Protocol */
+#define AF_INET6 24 /* IP version 6 */
+#if defined(_NETBSD_SOURCE)
+#define pseudo_AF_PIP 25 /* Help Identify PIP packets */
+#endif
+#define AF_ISDN 26 /* Integrated Services Digital Network*/
+#define AF_E164 AF_ISDN /* CCITT E.164 recommendation */
+#define AF_NATM 27 /* native ATM access */
+#define AF_ARP 28 /* (rev.) addr. res. prot. (RFC 826) */
+#if defined(_NETBSD_SOURCE)
+#define pseudo_AF_KEY 29 /* Internal key management protocol */
+#define pseudo_AF_HDRCMPLT 30 /* Used by BPF to not rewrite hdrs
+ in interface output routine */
+#endif
+#define AF_BLUETOOTH 31
+
+#define AF_MAX 32
+
+/*
+ * Structure used by kernel to store most
+ * addresses.
+ */
+struct sockaddr {
+ __uint8_t sa_len; /* total length */
+ sa_family_t sa_family; /* address family */
+ char sa_data[14]; /* actually longer; address value */
+};
+
+#if defined(_KERNEL)
+/*
+ * Structure used by kernel to pass protocol
+ * information in raw sockets.
+ */
+struct sockproto {
+ u_short sp_family; /* address family */
+ u_short sp_protocol; /* protocol */
+};
+#endif /* _KERNEL */
+
+#if 1
+/*
+ * RFC 2553: protocol-independent placeholder for socket addresses
+ */
+#define _SS_MAXSIZE 128
+#define _SS_ALIGNSIZE (sizeof(__int64_t))
+#define _SS_PAD1SIZE (_SS_ALIGNSIZE - 2)
+#define _SS_PAD2SIZE (_SS_MAXSIZE - 2 - \
+ _SS_PAD1SIZE - _SS_ALIGNSIZE)
+
+#if (_XOPEN_SOURCE - 0) >= 500 || defined(_NETBSD_SOURCE)
+struct sockaddr_storage {
+ __uint8_t ss_len; /* address length */
+ sa_family_t ss_family; /* address family */
+ char __ss_pad1[_SS_PAD1SIZE];
+ __int64_t __ss_align;/* force desired structure storage alignment */
+ char __ss_pad2[_SS_PAD2SIZE];
+};
+#endif /* _XOPEN_SOURCE >= 500 || _NETBSD_SOURCE */
+#endif /* 1 */
+
+/*
+ * 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
+#if defined(_NETBSD_SOURCE)
+#define PF_XTP pseudo_AF_XTP /* really just proto family, no AF */
+#endif
+#define PF_COIP AF_COIP
+#define PF_CNT AF_CNT
+#define PF_INET6 AF_INET6
+#define PF_IPX AF_IPX /* same format as AF_NS */
+#if defined(_NETBSD_SOURCE)
+#define PF_RTIP pseudo_AF_RTIP /* same format as AF_INET */
+#define PF_PIP pseudo_AF_PIP
+#endif
+#define PF_ISDN AF_ISDN /* same as E164 */
+#define PF_E164 AF_E164
+#define PF_NATM AF_NATM
+#define PF_ARP AF_ARP
+#if defined(_NETBSD_SOURCE)
+#define PF_KEY pseudo_AF_KEY /* like PF_ROUTE, only for key mgmt */
+#endif
+#define PF_BLUETOOTH AF_BLUETOOTH
+
+#define PF_MAX AF_MAX
+
+#if defined(_NETBSD_SOURCE)
+
+#ifndef gid_t
+typedef __gid_t gid_t; /* group id */
+#define gid_t __gid_t
+#endif
+
+#ifndef uid_t
+typedef __uid_t uid_t; /* user id */
+#define uid_t __uid_t
+#endif
+
+/*
+ * Socket credentials.
+ */
+struct sockcred {
+ uid_t sc_uid; /* real user id */
+ uid_t sc_euid; /* effective user id */
+ gid_t sc_gid; /* real group id */
+ gid_t sc_egid; /* effective group id */
+ int sc_ngroups; /* number of supplemental groups */
+ gid_t sc_groups[1]; /* variable length */
+};
+
+/*
+ * Compute size of a sockcred structure with groups.
+ */
+#define SOCKCREDSIZE(ngrps) \
+ (sizeof(struct sockcred) + (sizeof(gid_t) * ((ngrps) - 1)))
+#endif /* _NETBSD_SOURCE */
+
+
+#if defined(_NETBSD_SOURCE)
+/*
+ * Definitions for network related sysctl, CTL_NET.
+ *
+ * Second level is protocol family.
+ * Third level is protocol number.
+ *
+ * Further levels are defined by the individual families below.
+ */
+#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 }, \
+ { "inet6", CTLTYPE_NODE }, \
+ { "pip", CTLTYPE_NODE }, \
+ { "isdn", CTLTYPE_NODE }, \
+ { "natm", CTLTYPE_NODE }, \
+ { "arp", CTLTYPE_NODE }, \
+ { "key", CTLTYPE_NODE }, \
+}
+
+struct kinfo_pcb {
+ __uint64_t ki_pcbaddr; /* PTR: pcb addr */
+ __uint64_t ki_ppcbaddr; /* PTR: ppcb addr */
+ __uint64_t ki_sockaddr; /* PTR: socket addr */
+
+ __uint32_t ki_family; /* INT: protocol family */
+ __uint32_t ki_type; /* INT: socket type */
+ __uint32_t ki_protocol; /* INT: protocol */
+ __uint32_t ki_pflags; /* INT: generic protocol flags */
+
+ __uint32_t ki_sostate; /* INT: socket state */
+ __uint32_t ki_prstate; /* INT: protocol state */
+ __int32_t ki_tstate; /* INT: tcp state */
+ __uint32_t ki_tflags; /* INT: tcp flags */
+
+ __uint64_t ki_rcvq; /* U_LONG: receive queue len */
+ __uint64_t ki_sndq; /* U_LONG: send queue len */
+
+ union {
+ struct sockaddr _kis_src; /* STRUCT: local address */
+ char _kis_pad[256 + 8]; /* pad to max addr length */
+ } ki_s;
+ union {
+ struct sockaddr _kid_dst; /* STRUCT: remote address */
+ char _kid_pad[256 + 8]; /* pad to max addr length */
+ } ki_d;
+
+ __uint64_t ki_inode; /* INO_T: fake inode number */
+ __uint64_t ki_vnode; /* PTR: if associated with file */
+ __uint64_t ki_conn; /* PTR: control block of peer */
+ __uint64_t ki_refs; /* PTR: referencing socket */
+ __uint64_t ki_nextref; /* PTR: link in refs list */
+};
+
+#define ki_src ki_s._kis_src
+#define ki_dst ki_d._kid_dst
+
+#define PCB_SLOP 20
+#define PCB_ALL 0
+
+#endif /* _NETBSD_SOURCE */
+
+#if defined(_NETBSD_SOURCE)
+/*
+ * PF_ROUTE - Routing table
+ *
+ * Three additional levels are defined:
+ * Fourth: address family, 0 is wildcard
+ * 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_OIFLIST 3 /* old NET_RT_IFLIST (pre 1.5) */
+#define NET_RT_IFLIST 4 /* survey interface list */
+#define NET_RT_MAXID 5
+
+#define CTL_NET_RT_NAMES { \
+ { 0, 0 }, \
+ { "dump", CTLTYPE_STRUCT }, \
+ { "flags", CTLTYPE_STRUCT }, \
+ { 0, 0 }, \
+ { "iflist", CTLTYPE_STRUCT }, \
+}
+#endif /* _NETBSD_SOURCE */
+
+/*
+ * Maximum queue length specifiable by listen(2).
+ */
+#ifndef SOMAXCONN
+#define SOMAXCONN 128
+#endif
+
+/*
+ * Message header for recvmsg and sendmsg calls.
+ * Used value-result for recvmsg, value only for sendmsg.
+ */
+struct msghdr {
+ void *msg_name; /* optional address */
+ socklen_t msg_namelen; /* size of address */
+ struct iovec *msg_iov; /* scatter/gather array */
+ int msg_iovlen; /* # elements in msg_iov */
+ void *msg_control; /* ancillary data, see below */
+ socklen_t msg_controllen; /* ancillary data buffer len */
+ int msg_flags; /* flags on received message */
+};
+
+#define MSG_OOB 0x0001 /* process out-of-band data */
+#define MSG_PEEK 0x0002 /* peek at incoming message */
+#define MSG_DONTROUTE 0x0004 /* send without using routing tables */
+#define MSG_EOR 0x0008 /* data completes record */
+#define MSG_TRUNC 0x0010 /* data discarded before delivery */
+#define MSG_CTRUNC 0x0020 /* control data lost before delivery */
+#define MSG_WAITALL 0x0040 /* wait for full request or error */
+#define MSG_DONTWAIT 0x0080 /* this message should be nonblocking */
+#define MSG_BCAST 0x0100 /* this message was rcvd using link-level brdcst */
+#define MSG_MCAST 0x0200 /* this message was rcvd using link-level mcast */
+#define MSG_NOSIGNAL 0x0400 /* do not generate SIGPIPE on EOF */
+
+/*
+ * Header for ancillary data objects in msg_control buffer.
+ * Used for additional information with/about a datagram
+ * not expressible by flags. The format is a sequence
+ * of message elements headed by cmsghdr structures.
+ */
+struct cmsghdr {
+ socklen_t 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 *)(void *)(cmsg) + __CMSG_ALIGN(sizeof(struct cmsghdr)))
+#define CCMSG_DATA(cmsg) \
+ ((const u_char *)(const void *)(cmsg) + \
+ __CMSG_ALIGN(sizeof(struct cmsghdr)))
+
+/*
+ * Alignment requirement for CMSG struct manipulation.
+ * This basically behaves the same as ALIGN() ARCH/include/param.h.
+ * We declare it separately for two reasons:
+ * (1) avoid dependency between machine/param.h, and (2) to sync with kernel's
+ * idea of ALIGNBYTES at runtime.
+ * without (2), we can't guarantee binary compatibility in case of future
+ * changes in ALIGNBYTES.
+ */
+#define __CMSG_ALIGN(n) (((n) + __cmsg_alignbytes()) & ~__cmsg_alignbytes())
+#ifdef _KERNEL
+#define CMSG_ALIGN(n) __CMSG_ALIGN(n)
+#endif
+
+/* given pointer to struct cmsghdr, return pointer to next cmsghdr */
+#define CMSG_NXTHDR(mhdr, cmsg) \
+ (((__caddr_t)(cmsg) + __CMSG_ALIGN((cmsg)->cmsg_len) + \
+ __CMSG_ALIGN(sizeof(struct cmsghdr)) > \
+ (((__caddr_t)(mhdr)->msg_control) + (mhdr)->msg_controllen)) ? \
+ (struct cmsghdr *)0 : \
+ (struct cmsghdr *)((__caddr_t)(cmsg) + \
+ __CMSG_ALIGN((cmsg)->cmsg_len)))
+
+/*
+ * 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 *)0)
+
+#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) */
+#if defined(_NETBSD_SOURCE)
+#define SCM_TIMESTAMP 0x02 /* timestamp (struct timeval) */
+#define SCM_CREDS 0x04 /* credentials (struct sockcred) */
+#endif
+
+/*
+ * Types of socket shutdown(2).
+ */
+#define SHUT_RD 0 /* Disallow further receives. */
+#define SHUT_WR 1 /* Disallow further sends. */
+#define SHUT_RDWR 2 /* Disallow further sends/receives. */
+
+#include <sys/EfiCdefs.h>
+
+__BEGIN_DECLS
+int __cmsg_alignbytes(void);
+__END_DECLS
+
+#ifndef _KERNEL
+
+__BEGIN_DECLS
+int accept(int, struct sockaddr * __restrict, socklen_t * __restrict);
+int bind(int, const struct sockaddr *, socklen_t);
+int connect(int, const struct sockaddr *, socklen_t);
+int getpeername(int, struct sockaddr * __restrict, socklen_t * __restrict);
+int getsockname(int, struct sockaddr * __restrict, socklen_t * __restrict);
+int getsockopt(int, int, int, void * __restrict, socklen_t * __restrict);
+int listen(int, int);
+ssize_t recv(int, void *, size_t, int);
+ssize_t recvfrom(int, void * __restrict, size_t, int,
+ struct sockaddr * __restrict, socklen_t * __restrict);
+ssize_t recvmsg(int, struct msghdr *, int);
+ssize_t send(int, const void *, size_t, int);
+ssize_t sendto(int, const void *,
+ size_t, int, const struct sockaddr *, socklen_t);
+ssize_t sendmsg(int, const struct msghdr *, int);
+int setsockopt(int, int, int, const void *, socklen_t);
+int shutdown(int, int);
+int sockatmark(int);
+int socket(int, int, int)
+#if !defined(__LIBC12_SOURCE__) && !defined(_STANDALONE)
+__RENAME(__socket30)
+#endif
+ ;
+int socketpair(int, int, int, int *);
+__END_DECLS
+#endif /* !_KERNEL */
+
+#endif /* !_SYS_SOCKET_H_ */
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