Initial revision

1 files changed, 247 insertions, 0 deletions

diff --git a/socket/sys/socket.h b/socket/sys/socket.h
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+/* Copyright (C) 1991 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., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#ifndef	_SYS_SOCKET_H
+
+#define	_SYS_SOCKET_H	1
+#include <features.h>
+
+#define	__need_size_t
+#include <stddef.h>
+
+
+/* Types of sockets.  */
+enum __socket_type
+  {
+    SOCK_STREAM = 1,	/* Sequenced, reliable, connection-based
+			   byte streams.  */
+    SOCK_DGRAM = 2,	/* Connectionless, unreliable datagrams
+			   of fixed maximum length.  */
+    SOCK_RAW = 3,	/* Raw protocol interface.  */
+    SOCK_RDM = 4,	/* Reliably-delivered messages.  */
+    SOCK_SEQPACKET = 5,	/* Sequenced, reliable, connection-based,
+			   datagrams of fixed maximum length.  */
+  };
+
+/* Protocol families.  */
+#define	PF_UNSPEC	0	/* Unspecified.  */
+#define	PF_UNIX		1	/* Local to host (pipes and unix-domain).  */
+#define	PF_INET		2	/* IP protocol family.  */
+#define	PF_IMPLINK	3	/* ARPAnet IMP protocol.  */
+#define	PF_PUP		4	/* PUP protocols.  */
+#define	PF_CHAOS	5	/* MIT Chaos protocols.  */
+#define	PF_NS		6	/* Xerox NS protocols.  */
+#define	PF_NBS		7	/* NBS/NIST protocols. */
+#define	PF_ECMA		8	/* ECMA protocols.  */
+#define	PF_DATAKIT	9	/* AT&T Datakit protocols.  */
+#define	PF_CCITT	10	/* CCITT protocols (X.25 et al).  */
+#define	PF_SNA		11	/* IBM SNA protocol.  */
+#define	PF_DECnet	12	/* DECnet protocols.  */
+#define	PF_DLI		13	/* Direct data link interface.  */
+#define	PF_LAT		14	/* DEC Local Area Transport protocol.  */
+#define	PF_HYLINK	15	/* NSC Hyperchannel protocol.  */
+#define	PF_MAX		16
+
+/* Address families.  */
+#define	AF_UNSPEC	PF_UNSPEC
+#define	AF_UNIX		PF_UNIX
+#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_NBS		PF_NBS
+#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_MAX		PF_MAX
+
+
+/* Structure describing a generic socket address.  */
+struct sockaddr
+  {
+    unsigned short int sa_family;	/* Address family.  */
+    char sa_data[14];			/* Address data.  */
+  };
+
+
+/* Create a new socket of type TYPE in domain DOMAIN, using
+   protocol PROTOCOL.  If PROTOCOL is zero, one is chosen automatically.
+   Returns a file descriptor for the new socket, or -1 for errors.  */
+extern int EXFUN(socket, (int __domain, enum __socket_type __type,
+			  int __protocol));
+
+/* Create two new sockets, of type TYPE in domain DOMAIN and using
+   protocol PROTOCOL, which are connected to each other, and put file
+   descriptors for them in FDS[0] and FDS[1].  If PROTOCOL is zero,
+   one will be chosen automatically.  Returns 0 on success, -1 for errors.  */
+extern int EXFUN(socketpair, (int __domain, enum __socket_type __type,
+			      int __protocol, int __fds[2]));
+
+/* Give the socket FD the local address ADDR (which is LEN bytes long).  */
+extern int EXFUN(bind, (int __fd, struct sockaddr *__addr, size_t __len));
+
+/* Put the local address of FD into *ADDR and its length in *LEN.  */
+extern int EXFUN(getsockname, (int __fd, struct sockaddr *__addr,
+			       size_t *__len));
+
+/* Open a connection on socket FD to peer at ADDR (which LEN bytes long).
+   For connectionless socket types, just set the default address to send to
+   and the only address from which to accept transmissions.
+   Return 0 on success, -1 for errors.  */
+extern int EXFUN(connect, (int __fd, struct sockaddr *__addr, size_t __len));
+
+/* Put the address of the peer connected to socket FD into *ADDR
+   (which is *LEN bytes long), and its actual length into *LEN.  */
+extern int EXFUN(getpeername, (int __fd, struct sockaddr *__addr,
+			       size_t *__len));
+
+
+/* Bits in the FLAGS argument to `send', `recv', et al.  */
+enum
+  {
+    MSG_OOB = 1,	/* Process out-of-band data.  */
+    MSG_PEEK = 2,	/* Peek at incoming messages.  */
+    MSG_DONTROUTE = 4,	/* Don't use local routing.  */
+  };
+
+/* Send N bytes of BUF to socket FD.  Returns the number sent or -1.  */
+extern int EXFUN(send, (int __fd, PTR __buf, size_t __n, int __flags));
+
+/* Read N bytes into BUF from socket FD.
+   Returns the number read or -1 for errors.  */
+extern int EXFUN(recv, (int __fd, PTR __buf, size_t __n, int __flags));
+
+/* Send N bytes of BUF on socket FD to peer at address ADDR (which is
+   ADDR_LEN bytes long).  Returns the number sent, or -1 for errors.  */
+extern int EXFUN(sendto, (int __fd, PTR __buf, size_t __n, int __flags,
+			  struct sockaddr *__addr, size_t __addr_len));
+
+/* Read N bytes into BUF through socket FD from peer
+   at address ADDR (which is ADDR_LEN bytes long).
+   Returns the number read or -1 for errors.  */
+extern int EXFUN(recvfrom, (int __fd, PTR __buf, size_t __n, int __flags,
+			    struct sockaddr *__addr, size_t __addr_len));
+
+
+
+/* Structure describing messages sent by
+   `sendmsg' and received by `recvmsg'.  */
+struct msghdr
+  {
+    PTR msg_name;		/* Address to send to/receive from.  */
+    size_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 msg_accrights;		/* Access rights information.  */
+    size_t msg_accrightslen;	/* Length of access rights information.  */
+  };
+
+/* Send a message described MESSAGE on socket FD.
+   Returns the number of bytes sent, or -1 for errors.  */
+extern int EXFUN(sendmsg, (int __fd, CONST struct msghdr *__message,
+			   int __flags));
+
+/* Receive a message as described by MESSAGE from socket FD.
+   Returns the number of bytes read or -1 for errors.  */
+extern int EXFUN(recvmsg, (int __fd, struct msghdr *__message, int __flags));
+
+
+/* Protocol number used to manipulate socket-level options
+   with `getsockopt' and `setsockopt'.  */
+#define	SOL_SOCKET	0xffff
+
+/* Socket-level options for `getsockopt' and `setsockopt'.  */
+enum
+  {
+    SO_DEBUG = 0x0001,		/* Record debugging information.  */
+    SO_ACCEPTCONN = 0x0002,	/* Accept connections on socket.  */
+    SO_REUSEADDR = 0x0004,	/* Allow reuse of local addresses.  */
+    SO_KEEPALIVE = 0x0008,	/* Keep connections alive and send
+				   SIGPIPE when they die.  */
+    SO_DONTROUTE = 0x0010,	/* Don't do local routing.  */
+    SO_BROADCAST = 0x0020,	/* Allow transmission of
+				   broadcast messages.  */
+    SO_USELOOPBACK = 0x0040,	/* Use the software loopback to avoid
+				   hardware use when possible.  */
+    SO_LINGER = 0x0080,		/* Block on close of a reliable
+				   socket to transmit pending data.  */
+    SO_OOBINLINE = 0x0100,	/* Receive out-of-band data in-band.  */
+
+    SO_SNDBUF = 0x1001,		/* Send buffer size.  */
+    SO_RCVBUF = 0x1002,		/* Receive buffer.  */
+    SO_SNDLOWAT = 0x1003,	/* Send low-water mark.  */
+    SO_RCVLOWAT = 0x1004,	/* Receive low-water mark.  */
+    SO_SNDTIMEO = 0x1005,	/* Send timeout.  */
+    SO_RCVTIMEO = 0x1006,	/* Receive timeout.  */
+
+    SO_ERROR = 0x1007,		/* Get and clear error status.  */
+    SO_TYPE = 0x1008,		/* Get socket type.  */
+  };
+
+/* Structure used to manipulate the SO_LINGER option.  */
+struct linger
+  {
+    int l_onoff;	/* Nonzero to linger on close.  */
+    int l_linger;	/* Time to linger.  */
+  };
+
+
+/* Put the current value for socket FD's option OPTNAME at protocol level LEVEL
+   into OPTVAL (which is *OPTLEN bytes long), and set *OPTLEN to the value's
+   actual length.  Returns 0 on success, -1 for errors.  */
+extern int EXFUN(getsockopt, (int __fd, int __level, int __optname,
+			      PTR __optval, size_t *__optlen));
+
+/* Set socket FD's option OPTNAME at protocol level LEVEL
+   to *OPTVAL (which is OPTLEN bytes long).
+   Returns 0 on success, -1 for errors.  */
+extern int EXFUN(setsockopt, (int __fd, int __level, int __optname,
+			      PTR __optval, size_t __optlen));
+
+
+/* Prepare to accept connections on socket FD.
+   N connection requests will be queued before further requests are refused.
+   Returns 0 on success, -1 for errors.  */
+extern int EXFUN(listen, (int __fd, unsigned int __n));
+
+/* Await a connection on socket FD.
+   When a connection arrives, open a new socket to communicate with it,
+   set *ADDR (which is *ADDR_LEN bytes long) to the address of the connecting
+   peer and *ADDR_LEN to the address's actual length, and return the
+   new socket's descriptor, or -1 for errors.  */
+extern int EXFUN(accept, (int __fd, struct sockaddr *__addr,
+			  size_t *__addr_len));
+
+/* Shut down all or part of the connection open on socket FD.
+   HOW determines what to shut down:
+     0 = No more receptions;
+     1 = No more transmissions;
+     2 = No more receptions or transmissions.
+   Returns 0 on success, -1 for errors.  */
+extern int EXFUN(shutdown, (int __fd, int __how));
+
+
+#endif	/* sys/socket.h */