/include/sys/socket.h
C++ Header | 309 lines | 225 code | 40 blank | 44 comment | 3 complexity | b5a66fa0de0bf165492a09a72e3a0137 MD5 | raw file
Possible License(s): MIT, WTFPL, AGPL-1.0, BSD-3-Clause, GPL-3.0, LGPL-2.0, JSON, 0BSD
- #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_REUSEADDR 0x0004 /* allow local address reuse */
- #define SO_KEEPALIVE 0x0008 /* keep connections alive */
- #define SO_TYPE 0x0010 /* get socket type */
- #define SO_PASSCRED 0x0012
- #define SO_PEERCRED 0x0014
- #define SO_SNDBUF 0x1001 /* send buffer size */
- #define SO_RCVBUF 0x1002 /* receive buffer size */
- #define SO_ERROR 0x1007 /* get error status and clear */
- /*
- * 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 */
- #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 /* Bluetooth: HCI, SCO, L2CAP, RFCOMM */
- #define AF_IEEE80211 32 /* IEEE80211 */
- #define AF_MAX 33
- #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
- #include <sys/ucred.h>
- /*
- * Structure used by kernel to store most
- * addresses.
- */
- struct sockaddr
- {
- sa_family_t sa_family;
- char sa_data[8]; /* Big enough for sockaddr_in */
- };
- /*
- * RFC 2553: protocol-independent placeholder for socket addresses
- */
- #define _SS_MAXSIZE 128
- #define _SS_ALIGNSIZE (sizeof(__int64_t))
- #define _SS_PAD1SIZE (_SS_ALIGNSIZE - 1)
- #define _SS_PAD2SIZE (_SS_MAXSIZE - 1 - \
- _SS_PAD1SIZE - _SS_ALIGNSIZE)
- #if (_XOPEN_SOURCE - 0) >= 500 || defined(_NETBSD_SOURCE)
- struct sockaddr_storage {
- 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];
- };
- #define sstosa(__ss) ((struct sockaddr *)(__ss))
- #define sstocsa(__ss) ((const struct sockaddr *)(__ss))
- #endif /* _XOPEN_SOURCE >= 500 || _NETBSD_SOURCE */
- /*
- * 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_FILE PF_LOCAL /* Minix 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
- /*
- * 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 */
- };
- /*
- * 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[]; */
- };
- #define CMSG_FIRSTHDR(mhdr) \
- ( (mhdr)->msg_controllen >= sizeof(struct cmsghdr) ? \
- (struct cmsghdr *)(mhdr)->msg_control : \
- (struct cmsghdr *)NULL )
- #define CMSG_ALIGN(len) \
- ( (len % sizeof(long) == 0) ? \
- len : \
- len + sizeof(long) - (len % sizeof(long)) )
- #define CMSG_NXTHDR(mhdr, cmsg) \
- ( ((cmsg) == NULL) ? CMSG_FIRSTHDR(mhdr) : \
- (((unsigned char *)(cmsg) + CMSG_ALIGN((cmsg)->cmsg_len) \
- + CMSG_ALIGN(sizeof(struct cmsghdr)) > \
- (unsigned char *)((mhdr)->msg_control) + \
- (mhdr)->msg_controllen) ? \
- (struct cmsghdr *)NULL : \
- (struct cmsghdr *)((unsigned char *)(cmsg) + \
- CMSG_ALIGN((cmsg)->cmsg_len))) )
- #define CMSG_DATA(cmsg) \
- ( (unsigned char *)(cmsg) + CMSG_ALIGN(sizeof(struct cmsghdr)) )
- #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
- #define SCM_CREDENTIALS 0x02
- #define SCM_SECURITY 0x04
- /*
- * 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/cdefs.h>
- __BEGIN_DECLS
- int __cmsg_alignbytes(void);
- __END_DECLS
- __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);
- int socketpair(int, int, int, int *);
- __END_DECLS
- #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 /* complete record */
- #endif /* !_SYS_SOCKET_H_ */