/* System-specific socket constants and types. AIX version. Copyright (C) 1991,92,94,95,96,97,98,99, 2000 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 __BITS_SOCKET_H #define __BITS_SOCKET_H #if !defined _SYS_SOCKET_H && !defined _NETINET_IN_H # error "Never include directly; use instead." #endif #define __need_size_t #define __need_NULL #include #include #include /* Type for length arguments in socket calls. */ #ifndef __socklen_t_defined typedef __socklen_t socklen_t; # define __socklen_t_defined #endif /* Types of sockets. */ enum __socket_type { 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 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_CONN_DGRAM = 6 /* Conneciton datagram. */ #define SOCK_CONN_DGRAM SOCK_CONN_DGRAM }; /* 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 /* Another non-standard name for PF_LOCAL. */ #define PF_INET 2 /* IP protocol family. */ #define PF_IMPLINK 3 /* ARPAnet IMP addresses. */ #define PF_PUP 4 /* PUP protocols (e.g., BSP). */ #define PF_CHAOS 5 /* MIT CHAOS protocols. */ #define PF_NS 6 /* XEROX NS protocols. */ #define PF_ISO 7 /* ISO protocols. */ #define PF_OSI PF_ISO #define PF_ECMA 8 /* European Computer Manufacturers. */ #define PF_DATAKIT 9 /* Datakit protocols. */ #define PF_CCITT 10 /* CCITT protocols, X.25 etc. */ #define PF_SNA 11 /* IBM SNA. */ #define PF_DECnet 12 /* DECnet. */ #define PF_DLI 13 /* DEC Direct data link interface. */ #define PF_LAT 14 /* LAT. */ #define PF_HYLINK 15 /* NSC Hyperchannel. */ #define PF_APPLETALK 16 /* Apple Talk. */ #define PF_NETLINK 17 /* Internet Routing Protocol. */ #define PF_ROUTE PF_NETLINK /* Alias to emulate 4.4BSD. */ #define PF_LINK 18 /* Link layer interface. */ #define PF_XTP 19 /* eXpress Transfer Protocol (no AF). */ #define PF_INTF 20 /* Debugging use only. */ #define PF_RIF 21 /* Raw interface. */ #define PF_NETWARE 22 #define PF_NDD 23 #define PF_INET6 24 /* IPv6. */ #define PF_MAX 30 /* 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_IMPLINK PF_IMPLINK #define AF_PUP PF_PUP #define AF_CHAOS PF_CHAOS #define AF_NS PF_NS #define AF_ISO PF_ISO #define AF_OSI PF_OSI #define AF_ECMA PF_ECMA #define AF_DATAKIT PF_DATAKIT #define AF_CCITT PF_CCITT #define AF_SNA PF_SNA #define AF_DECnet PF_DECnet #define AF_DLI PF_DLI #define AF_LAT PF_LAT #define AF_HYLINK PF_HYLINK #define AF_APPLETALK PF_APPLETALK #define AF_NETLINK PF_NETLINK #define AF_ROUTE PF_ROUTE #define AF_LINK PF_LINK #define AF_INTF PF_INTF #define AF_RIF PF_RIF #define AF_NETWARE PF_NETWARE #define AF_NDD PF_NDD #define AF_INET6 PF_INET6 #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_SOCKET 0xffff /* Maximum queue length specifiable by listen. */ #define SOMAXCONN 1024 /* Get the definition of the macro to define the common sockaddr members. */ #include /* Structure describing a generic socket address. */ struct sockaddr { __SOCKADDR_COMMON (sa_); /* Common data: address family and length. */ char sa_data[14]; /* Address data. */ }; /* Structure large enough to hold any socket address (with the historical exception of AF_UNIX). We reserve 128 bytes. */ #if ULONG_MAX > 0xffffffff # define __ss_aligntype __uint64_t #else # define __ss_aligntype __uint32_t #endif #define _SS_SIZE 128 #define _SS_PADSIZE (_SS_SIZE - (2 * sizeof (__ss_aligntype))) struct sockaddr_storage { __SOCKADDR_COMMON (__ss_); /* Address family, etc. */ __ss_aligntype __ss_align; /* Force desired alignment. */ char __ss_padding[_SS_PADSIZE]; }; /* 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_EOR = 0x08, /* End of record. */ #define MSG_EOR MSG_EOR MSG_TRUNC = 0x10, #define MSG_TRUNC MSG_TRUNC MSG_CTRUNC = 0x20, /* Control data lost before delivery. */ #define MSG_CTRUNC MSG_CTRUNC MSG_WAITALL = 0x40, /* Wait for a full request. */ #define MSG_WAITALL MSG_WAITALL MSG_MPEG2 = 0x80, /* Message contain MPEG2 data. */ #define MSG_MPEG2 MSG_MPEG2 }; /* Structure describing messages sent by `sendmsg' and received by `recvmsg'. */ struct msghdr { void *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. */ int msg_iovlen; /* Number of elements in the vector. */ void *msg_control; /* Ancillary data (eg BSD filedesc passing). */ socklen_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 { socklen_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. */ /* XXX Perhaps this should be removed. */ #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 (size_t) - 1) \ & ~(sizeof (size_t) - 1)) #define CMSG_SPACE(len) (CMSG_ALIGN (len) \ + CMSG_ALIGN (sizeof (struct cmsghdr))) #define CMSG_LEN(len) (CMSG_ALIGN (sizeof (struct cmsghdr)) + (len)) extern struct cmsghdr *__cmsg_nxthdr (struct msghdr *__mhdr, struct cmsghdr *__cmsg) __THROW; #ifdef __USE_EXTERN_INLINES # ifndef _EXTERN_INLINE # define _EXTERN_INLINE extern __inline # endif _EXTERN_INLINE struct cmsghdr * __cmsg_nxthdr (struct msghdr *__mhdr, struct cmsghdr *__cmsg) __THROW { if ((size_t) __cmsg->cmsg_len < sizeof (struct cmsghdr)) /* The kernel header does this so there may be a reason. */ return 0; __cmsg = (struct cmsghdr *) ((unsigned char *) __cmsg + CMSG_ALIGN (__cmsg->cmsg_len)); if ((unsigned char *) (__cmsg + 1) >= ((unsigned char *) __mhdr->msg_control + __mhdr->msg_controllen) || ((unsigned char *) __cmsg + CMSG_ALIGN (__cmsg->cmsg_len) > ((unsigned char *) __mhdr->msg_control + __mhdr->msg_controllen))) /* No more entries. */ return 0; return __cmsg; } #endif /* Use `extern inline'. */ /* Socket level message types. This must match the definitions in . */ enum { SCM_RIGHTS = 0x01 /* Transfer file descriptors. */ #define SCM_RIGHTS SCM_RIGHTS }; /* Options 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_USE_IFBUFS 0x0400 /* Interface will supply buffers. */ #define SO_CKSUMRECV 0x0800 /* Defer checksum until receive. */ #define SO_NOREUSEADDR 0x1000 /* Prevent local address reuse. */ #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_KERNACCEPT 0x2000 /* Derive a in-kernel only socket. */ #define SO_AUDIT 0x8000 /* Turn on socket auditing. */ /* Structure used to manipulate the SO_LINGER option. */ struct linger { int l_onoff; /* Nonzero to linger on close. */ int l_linger; /* Time to linger. */ }; #endif /* bits/socket.h */