?? socket.h
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/* System-specific socket constants and types. Linux version. Copyright (C) 1991, 92, 94, 95, 96, 97, 98 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. The GNU C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with the GNU C Library; see the file COPYING.LIB. If not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */#ifndef _SOCKETBITS_H#define _SOCKETBITS_H 1#include <features.h>#define __need_size_t#define __need_NULL#include <stddef.h>__BEGIN_DECLS/* Type for length arguments in socket calls. */#ifndef __socklen_t_definedtypedef unsigned int socklen_t;# define __socklen_t_defined#endif/* Types of sockets. */enum __socket_type{#ifndef __mips__ SOCK_STREAM = 1, /* Sequenced, reliable, connection-based byte streams. */#define SOCK_STREAM SOCK_STREAM SOCK_DGRAM = 2, /* Connectionless, unreliable datagrams of fixed maximum length. */#define SOCK_DGRAM SOCK_DGRAM#else SOCK_STREAM = 2, /* Sequenced, reliable, connection-based byte streams. */#define SOCK_STREAM SOCK_STREAM SOCK_DGRAM = 1, /* Connectionless, unreliable datagrams of fixed maximum length. */#define SOCK_DGRAM SOCK_DGRAM#endif SOCK_RAW = 3, /* Raw protocol interface. */#define SOCK_RAW SOCK_RAW SOCK_RDM = 4, /* Reliably-delivered messages. */#define SOCK_RDM SOCK_RDM SOCK_SEQPACKET = 5, /* Sequenced, reliable, connection-based, datagrams of fixed maximum length. */#define SOCK_SEQPACKET SOCK_SEQPACKET SOCK_PACKET = 10 /* Linux specific way of getting packets at the dev level. For writing rarp and other similar things on the user level. */#define SOCK_PACKET SOCK_PACKET};/* Protocol families. */#define PF_UNSPEC 0 /* Unspecified. */#define PF_LOCAL 1 /* Local to host (pipes and file-domain). */#define PF_UNIX PF_LOCAL /* Old BSD name for PF_LOCAL. */#define PF_FILE PF_LOCAL /* POSIX name for PF_LOCAL. */#define PF_INET 2 /* IP protocol family. */#define PF_AX25 3 /* Amateur Radio AX.25. */#define PF_IPX 4 /* Novell Internet Protocol. */#define PF_APPLETALK 5 /* Don't use this. */#define PF_NETROM 6 /* Amateur radio NetROM. */#define PF_BRIDGE 7 /* Multiprotocol bridge. */#define PF_AAL5 8 /* Reserved for Werner's ATM. */#define PF_X25 9 /* Reserved for X.25 project. */#define PF_INET6 10 /* IP version 6. */#define PF_ROSE 11 /* Amateur Radio X.25 PLP */#define PF_DECnet 12 /* Reserved for DECnet project */#define PF_NETBEUI 13 /* Reserved for 802.2LLC project*/#define PF_SECURITY 14 /* Security callback pseudo AF */#define PF_KEY 15 /* PF_KEY key management API */#define PF_NETLINK 16#define PF_ROUTE PF_NETLINK /* Alias to emulate 4.4BSD */#define PF_PACKET 17 /* Packet family */#define PF_MAX 32 /* For now.. *//* Address families. */#define AF_UNSPEC PF_UNSPEC#define AF_LOCAL PF_LOCAL#define AF_UNIX PF_UNIX#define AF_FILE PF_FILE#define AF_INET PF_INET#define AF_AX25 PF_AX25#define AF_IPX PF_IPX#define AF_APPLETALK PF_APPLETALK#define AF_NETROM PF_NETROM#define AF_BRIDGE PF_BRIDGE#define AF_AAL5 PF_AAL5#define AF_X25 PF_X25#define AF_INET6 PF_INET6#define AF_ROSE PF_ROSE#define AF_DECnet PF_DECnet#define AF_NETBEUI PF_NETBEUI#define AF_SECURITY PF_SECURITY#define pseudo_AF_KEY pseudo_PF_KEY#define AF_NETLINK PF_NETLINK#define AF_ROUTE PF_ROUTE#define AF_PACKET PF_PACKET#define AF_MAX PF_MAX/* Socket level values. Others are defined in the appropriate headers. XXX These definitions also should go into the appropriate headers as far as they are available. */#define SOL_IPV6 41#define SOL_ICMPV6 58#define SOL_RAW 255#define SOL_AX25 257#define SOL_ATALK 258#define SOL_NETROM 259#define SOL_ROSE 260#define SOL_DECNET 261#define SOL_X25 262/* Maximum queue length specifiable by listen. */#define SOMAXCONN 128/* Get the definition of the macro to define the common sockaddr members. */#if __GLIBC_MINOR__ >= 1#include <bits/sockaddr.h>#else#include <sockaddrcom.h>#endif/* Structure describing a generic socket address. */struct sockaddr { __SOCKADDR_COMMON (sa_); /* Common data: address family and length. */ char sa_data[14]; /* Address data. */ };/* Bits in the FLAGS argument to `send', `recv', et al. */enum { MSG_OOB = 0x01, /* Process out-of-band data. */#define MSG_OOB MSG_OOB MSG_PEEK = 0x02, /* Peek at incoming messages. */#define MSG_PEEK MSG_PEEK MSG_DONTROUTE = 0x04, /* Don't use local routing. */#define MSG_DONTROUTE MSG_DONTROUTE MSG_CTRUNC = 0x08, /* Control data lost before delivery. */#define MSG_CTRUNC MSG_CTRUNC MSG_PROBE = 0x10,#define MSG_PROBE MSG_PROBE MSG_TRUNC = 0x20,#define MSG_TRUNC MSG_TRUNC MSG_DONTWAIT = 0x40,#define MSG_DONTWAIT MSG_DONTWAIT MSG_WAITALL = 0x100,#define MSG_WAITALL MSG_WAITALL MSG_CONFIRM = 0x800,#define MSG_CONFIRM MSG_CONFIRM MSG_ERRQUEUE = 0x2000,#define MSG_ERRQUEUE MSG_ERRQUEUE MSG_NOSIGNAL = 0x4000,#define MSG_NOSIGNAL MSG_NOSIGNAL };/* Structure describing messages sent by `sendmsg' and received by `recvmsg'. */struct msghdr { __ptr_t msg_name; /* Address to send to/receive from. */ socklen_t msg_namelen; /* Length of address data. */ struct iovec *msg_iov; /* Vector of data to send/receive into. */ size_t msg_iovlen; /* Number of elements in the vector. */ __ptr_t msg_control; /* Ancillary data (eg BSD filedesc passing). */ size_t msg_controllen; /* Ancillary data buffer length. */ int msg_flags; /* Flags on received message. */ };/* Structure used for storage of ancillary data object information. */struct cmsghdr { size_t cmsg_len; /* Length of data in cmsg_data plus length of cmsghdr structure. */ int cmsg_level; /* Originating protocol. */ int cmsg_type; /* Protocol specific type. */#if !defined __STRICT_ANSI__ && defined __GNUC__ && __GNUC__ >= 2 unsigned char __cmsg_data[0]; /* Ancillary data. */#endif };/* Ancillary data object manipulation macros. */#if !defined __STRICT_ANSI__ && defined __GNUC__ && __GNUC__ >= 2# define CMSG_DATA(cmsg) ((cmsg)->__cmsg_data)#else# define CMSG_DATA(cmsg) ((unsigned char *) ((struct cmsghdr *) (cmsg) + 1))#endif#define CMSG_NXTHDR(mhdr, cmsg) __cmsg_nxthdr (mhdr, cmsg)#define CMSG_FIRSTHDR(mhdr) \ ((size_t) (mhdr)->msg_controllen >= sizeof (struct cmsghdr) \ ? (struct cmsghdr *) (mhdr)->msg_control : (struct cmsghdr *) NULL)#define CMSG_ALIGN(len) ( ((len)+sizeof(long)-1) & ~(sizeof(long)-1) )#define CMSG_SPACE(len) (CMSG_ALIGN(sizeof(struct cmsghdr)) + CMSG_ALIGN(len))#define CMSG_LEN(len) (CMSG_ALIGN(sizeof(struct cmsghdr)) + (len))#ifndef _EXTERN_INLINE# define _EXTERN_INLINE extern __inline#endifextern struct cmsghdr *__cmsg_nxthdr __P ((struct msghdr *__mhdr, struct cmsghdr *__cmsg));_EXTERN_INLINE struct cmsghdr *__cmsg_nxthdr (struct msghdr *__mhdr, struct cmsghdr *__cmsg){ if ((size_t) __cmsg->cmsg_len < sizeof (struct cmsghdr)) /* The kernel header does this so there may be a reason. */ return NULL; __cmsg = (struct cmsghdr *) ((unsigned char *) __cmsg + CMSG_ALIGN(__cmsg->cmsg_len)); if ( (unsigned char *) (__cmsg + 1) >= (unsigned char *) __mhdr->msg_control + __mhdr->msg_controllen) /* No more entries. */ return NULL; return __cmsg;}/* Socket level message types. This must match the definitions in <linux/socket.h>. */enum { SCM_RIGHTS = 0x01, /* Data array contains access rights. */#define SCM_RIGHTS SCM_RIGHTS SCM_CREDENTIALS = 0x02, /* Data array is `struct ucred'. */#define SCM_CREDENTIALS SCM_CREDENTIALS };/* Get socket manipulation related informations from kernel headers. */#ifdef THIS_IS_CRAP#ifndef _LINUX_TYPES_H# define _LINUX_TYPES_H#endif#endif#include <asm/socket.h>#include <asm/types.h>struct ucred{ __u32 pid; __u32 uid; __u32 gid;};/* Structure used to manipulate the SO_LINGER option. */struct linger { int l_onoff; /* Nonzero to linger on close. */ int l_linger; /* Time to linger. */ };__END_DECLS#endif /* socketbits.h */
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