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189 lines
6.4 KiB
C
189 lines
6.4 KiB
C
/* System-specific socket constants and types. Linux version.
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Copyright (C) 1991, 92, 94, 95, 96, 97, 98 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 Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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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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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#if !defined _SYS_STAT_H && !defined _NETINET_IN_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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#define __need_NULL
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#include <stddef.h>
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/* Type for length arguments in socket calls. */
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typedef unsigned int socklen_t;
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/* Supported address families. */
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#define PF_UNSPEC 0
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#define PF_LOCAL 1 /* Local to host (pipes and file-domain). */
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#define PF_UNIX PF_LOCAL /* Old BSD name for PF_LOCAL. */
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#define PF_FILE PF_LOCAL /* POSIX 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 /* Don't use this. */
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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_AAL5 8 /* Reserved for Werner's ATM. */
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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_MAX 32 /* For now.. */
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/* Protocol families, same as address families. */
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#define AF_UNSPEC PF_UNSPEC
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#define AF_UNIX PF_UNIX
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#define AF_LOCAL PF_LOCAL
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#define AF_FILE PF_FILE
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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_AAL5 PF_AAL5
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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 pseudo_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_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_IPV6 41
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#define SOL_ICMPV6 58
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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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/* 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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/* 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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MSG_PEEK = 0x02, /* Peek at incoming messages. */
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MSG_DONTROUTE = 0x04, /* Don't use local routing. */
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MSG_CTRUNC = 0x08, /* Control data lost before delivery. */
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MSG_PROXY = 0x10 /* Supply or ask second address. */
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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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__ptr_t 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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int msg_iovlen; /* Number of elements in the vector. */
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__ptr_t msg_control; /* Ancillary data (eg BSD filedesc passing). */
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socklen_t msg_controllen; /* Ancillary data buffer length. */
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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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socklen_t cmsg_len; /* Length of data in cmsg_data plus length
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of cmsghdr structure. */
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int cmsg_level; /* Originating protocol. */
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int cmsg_type; /* Protocol specific type. */
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#if !defined __STRICT_ANSI__ && defined __GNUC__ && __GNUC__ >= 2
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unsigned char __cmsg_data[0]; /* 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 !defined __STRICT_ANSI__ && defined __GNUC__ && __GNUC__ >= 2
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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 *) NULL)
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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 struct cmsghdr *__cmsg_nxthdr __P ((struct msghdr *__mhdr,
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struct cmsghdr *__cmsg));
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_EXTERN_INLINE struct cmsghdr *
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__cmsg_nxthdr (struct msghdr *__mhdr, struct cmsghdr *__cmsg)
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{
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unsigned char *__p;
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if ((size_t) __cmsg->cmsg_len < sizeof (struct cmsghdr))
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/* The kernel header does this so there may be a reason. */
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return NULL;
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__p = (((unsigned char *) __cmsg)
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+ ((__cmsg->cmsg_len + sizeof (long int) - 1) & ~sizeof (long int)));
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if (__p >= (unsigned char *) __mhdr->msg_control + __mhdr->msg_controllen)
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/* No more entries. */
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return NULL;
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return (struct cmsghdr *) __p;
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}
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/* Get socket manipulation related informations from kernel headers. */
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#include <asm/socket.h>
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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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