322 lines
11 KiB
C
322 lines
11 KiB
C
/* cygwin/socket.h
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This file is part of Cygwin.
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This software is a copyrighted work licensed under the terms of the
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Cygwin license. Please consult the file "CYGWIN_LICENSE" for
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details. */
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#ifndef _CYGWIN_SOCKET_H
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#define _CYGWIN_SOCKET_H
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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#include <sys/types.h>
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/* Keep #define socklen_t for backward compatibility. */
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#ifndef socklen_t
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typedef __socklen_t socklen_t;
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#define socklen_t socklen_t
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#endif
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typedef __sa_family_t sa_family_t;
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#ifndef __INSIDE_CYGWIN_NET__
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struct sockaddr {
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sa_family_t sa_family; /* address family, AF_xxx */
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char sa_data[14]; /* 14 bytes of protocol address */
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};
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/* Definition of sockaddr_storage according to SUSv3. */
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#define _SS_MAXSIZE 128 /* Maximum size. */
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#define _SS_ALIGNSIZE (sizeof (int64_t))/* Desired alignment. */
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#define _SS_PAD1SIZE (_SS_ALIGNSIZE - sizeof (sa_family_t))
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#define _SS_PAD2SIZE (_SS_MAXSIZE - (sizeof (sa_family_t) \
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+ _SS_PAD1SIZE + _SS_ALIGNSIZE))
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struct sockaddr_storage {
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sa_family_t ss_family;
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char _ss_pad1[_SS_PAD1SIZE];
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int64_t __ss_align;
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char _ss_pad2[_SS_PAD2SIZE];
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};
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#endif
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#include <asm/socket.h> /* arch-dependent defines */
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#include <cygwin/sockios.h> /* the SIOCxxx I/O controls */
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#include <sys/uio.h> /* iovec support */
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#include <cygwin/_ucred.h> /* struct ucred */
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struct linger {
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unsigned short l_onoff; /* Linger active */
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unsigned short l_linger; /* How long to linger for */
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};
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struct msghdr
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{
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void * msg_name; /* Socket name */
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socklen_t msg_namelen; /* Length of name */
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struct iovec * msg_iov; /* Data blocks */
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int msg_iovlen; /* Number of blocks */
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void * msg_control; /* Ancillary data */
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socklen_t msg_controllen; /* Ancillary data buffer length */
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int msg_flags; /* Received flags on recvmsg */
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};
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struct cmsghdr
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{
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/* Amazing but true: The type of cmsg_len should be socklen_t but, just
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as on Linux, the definition of the kernel is incompatible with this,
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so the Windows socket headers define cmsg_len as SIZE_T. */
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size_t cmsg_len; /* Length of cmsghdr + data */
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int cmsg_level; /* Protocol */
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int cmsg_type; /* Protocol type */
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};
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#define CMSG_ALIGN(len) \
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(((len) + __alignof__ (struct cmsghdr) - 1) \
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& ~(__alignof__ (struct cmsghdr) - 1))
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#define CMSG_LEN(len) \
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(CMSG_ALIGN (sizeof (struct cmsghdr)) + (len))
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#define CMSG_SPACE(len) \
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(CMSG_ALIGN (sizeof (struct cmsghdr)) + CMSG_ALIGN(len))
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#define CMSG_FIRSTHDR(mhdr) \
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({ \
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struct msghdr *_m = (struct msghdr *) mhdr; \
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(unsigned) (_m)->msg_controllen >= sizeof (struct cmsghdr) \
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? (struct cmsghdr *) (_m)->msg_control \
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: (struct cmsghdr *) NULL; \
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})
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#define CMSG_NXTHDR(mhdr,cmsg) \
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({ \
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struct msghdr *_m = (struct msghdr *) mhdr; \
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struct cmsghdr *_c = (struct cmsghdr *) cmsg; \
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((char *) _c + CMSG_SPACE (_c->cmsg_len) \
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> (char *) _m->msg_control + _m->msg_controllen) \
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? (struct cmsghdr *) NULL \
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: (struct cmsghdr *) ((char *) _c + CMSG_ALIGN (_c->cmsg_len)); \
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})
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#define CMSG_DATA(cmsg) \
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((unsigned char *) ((struct cmsghdr *)(cmsg) + 1))
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/* "Socket"-level control message types: */
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#define SCM_RIGHTS 0x01 /* descriptor passing (array of int) */
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#define SCM_CREDENTIALS 0x02 /* credential passing (struct ucred) */
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#ifdef __INSIDE_CYGWIN__
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/* Definition of struct msghdr up to release 1.5.18 */
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struct OLD_msghdr
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{
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void * msg_name; /* Socket name */
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int msg_namelen; /* Length of name */
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struct iovec * msg_iov; /* Data blocks */
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int msg_iovlen; /* Number of blocks */
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void * msg_accrights; /* Per protocol magic */
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/* (eg BSD descriptor passing) */
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int msg_accrightslen; /* Length of rights list */
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};
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#endif
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/* Socket types. */
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#define SOCK_STREAM 1 /* stream (connection) socket */
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#define SOCK_DGRAM 2 /* datagram (conn.less) socket */
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#define SOCK_RAW 3 /* raw socket */
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#define SOCK_RDM 4 /* reliably-delivered message */
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#define SOCK_SEQPACKET 5 /* sequential packet socket */
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/* defines SOCK_NONBLOCK / SOCK_CLOEXEC */
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#include <cygwin/_socketflags.h>
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/* Supported address families. */
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/*
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* Address families.
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*/
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#define AF_UNSPEC 0 /* unspecified */
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/* FIXME: This is for testing only, while developing the new
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fhandler_socket_unix class. */
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#if defined (__INSIDE_CYGWIN__) && defined (__WITH_AF_UNIX)
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#define AF_UNIX 31
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#else
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#define AF_UNIX 1 /* local to host (pipes, portals) */
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#endif
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#define AF_LOCAL 1 /* POSIX name for AF_UNIX */
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#define AF_INET 2 /* internetwork: UDP, TCP, etc. */
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#define AF_IMPLINK 3 /* arpanet imp addresses */
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#define AF_PUP 4 /* pup protocols: e.g. BSP */
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#define AF_CHAOS 5 /* mit CHAOS protocols */
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#define AF_NS 6 /* XEROX NS protocols */
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#define AF_ISO 7 /* ISO protocols */
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#define AF_OSI AF_ISO /* OSI is ISO */
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#define AF_ECMA 8 /* european computer manufacturers */
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#define AF_DATAKIT 9 /* datakit protocols */
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#define AF_CCITT 10 /* CCITT protocols, X.25 etc */
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#define AF_SNA 11 /* IBM SNA */
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#define AF_DECnet 12 /* DECnet */
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#define AF_DLI 13 /* Direct data link interface */
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#define AF_LAT 14 /* LAT */
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#define AF_HYLINK 15 /* NSC Hyperchannel */
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#define AF_APPLETALK 16 /* AppleTalk */
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#define AF_NETBIOS 17 /* NetBios-style addresses */
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#define AF_INET6 23 /* IP version 6 */
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#define AF_MAX 32
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/*
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* Protocol families, same as address families for now.
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*/
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#define PF_UNSPEC AF_UNSPEC
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#define PF_UNIX AF_UNIX
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#define PF_LOCAL AF_LOCAL
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#define PF_INET AF_INET
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#define PF_IMPLINK AF_IMPLINK
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#define PF_PUP AF_PUP
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#define PF_CHAOS AF_CHAOS
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#define PF_NS AF_NS
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#define PF_ISO AF_ISO
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#define PF_OSI AF_OSI
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#define PF_ECMA AF_ECMA
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#define PF_DATAKIT AF_DATAKIT
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#define PF_CCITT AF_CCITT
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#define PF_SNA AF_SNA
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#define PF_DECnet AF_DECnet
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#define PF_DLI AF_DLI
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#define PF_LAT AF_LAT
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#define PF_HYLINK AF_HYLINK
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#define PF_APPLETALK AF_APPLETALK
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#define PF_NETBIOS AF_NETBIOS
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#define PF_INET6 AF_INET6
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#define PF_MAX AF_MAX
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/* Maximum queue length specificable by listen. */
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#define SOMAXCONN 0x7fffffff
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/* Flags we can use with send/ and recv. */
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#define MSG_OOB 0x1 /* process out-of-band data */
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#define MSG_PEEK 0x2 /* peek at incoming message */
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#define MSG_DONTROUTE 0x4 /* send without using routing tables */
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#define MSG_WAITALL 0x8 /* wait for all requested bytes */
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#define MSG_DONTWAIT 0x10 /* selective non-blocking operation */
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#define MSG_NOSIGNAL 0x20 /* Don't raise SIGPIPE */
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#define MSG_TRUNC 0x0100 /* Normal data truncated */
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#define MSG_CTRUNC 0x0200 /* Control data truncated */
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/* Windows-specific flag values returned by recvmsg. */
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#define MSG_BCAST 0x0400 /* Broadcast datagram */
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#define MSG_MCAST 0x0800 /* Multicast datagram */
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/* AF_UNIX specific */
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#define MSG_CMSG_CLOEXEC 0x1000 /* Set O_CLOEXEC on fd's passed via
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SCM_RIGHTS */
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/* Setsockoptions(2) level. Thanks to BSD these must match IPPROTO_xxx */
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#define SOL_IP 0
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#define SOL_IPV6 41
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#define SOL_IPX 256
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#define SOL_AX25 257
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#define SOL_ATALK 258
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#define SOL_NETROM 259
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#define SOL_TCP 6
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#define SOL_UDP 17
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/* IP options */
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#ifndef IPTOS_LOWDELAY
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#define IPTOS_LOWDELAY 0x10
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#define IPTOS_THROUGHPUT 0x08
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#define IPTOS_RELIABILITY 0x04
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#endif
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/* These need to appear somewhere around here */
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#define IP_DEFAULT_MULTICAST_TTL 1
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#define IP_DEFAULT_MULTICAST_LOOP 1
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#define IP_MAX_MEMBERSHIPS 20
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/* IP options for use with getsockopt/setsockopt */
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#define IP_OPTIONS 1
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#define IP_HDRINCL 2
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#define IP_TOS 3
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#define IP_TTL 4
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#define IP_MULTICAST_IF 9
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#define IP_MULTICAST_TTL 10
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#define IP_MULTICAST_LOOP 11
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#define IP_ADD_MEMBERSHIP 12
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#define IP_DROP_MEMBERSHIP 13
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#define IP_DONTFRAGMENT 14
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#define IP_ADD_SOURCE_MEMBERSHIP 15
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#define IP_DROP_SOURCE_MEMBERSHIP 16
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#define IP_BLOCK_SOURCE 17
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#define IP_UNBLOCK_SOURCE 18
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#define IP_PKTINFO 19
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#define IP_UNICAST_IF 31
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/* IPv6 options for use with getsockopt/setsockopt */
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#define IPV6_HOPOPTS 1
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#define IPV6_UNICAST_HOPS 4
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#define IPV6_MULTICAST_IF 9
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#define IPV6_MULTICAST_HOPS 10
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#define IPV6_MULTICAST_LOOP 11
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#define IPV6_ADD_MEMBERSHIP 12
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#define IPV6_DROP_MEMBERSHIP 13
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#define IPV6_JOIN_GROUP IPV6_ADD_MEMBERSHIP
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#define IPV6_LEAVE_GROUP IPV6_DROP_MEMBERSHIP
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#define IPV6_DONTFRAG 14
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#define IPV6_PKTINFO 19
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#define IPV6_HOPLIMIT 21
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#define IPV6_CHECKSUM 26
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#define IPV6_V6ONLY 27
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#define IPV6_UNICAST_IF 31
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#define IPV6_RTHDR 32
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#define IPV6_RECVRTHDR 38
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#define IPV6_TCLASS 39
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#define IPV6_RECVTCLASS 40
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/* IP agnostic options for use with getsockopt/setsockopt */
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#define MCAST_JOIN_GROUP 41
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#define MCAST_LEAVE_GROUP 42
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#define MCAST_BLOCK_SOURCE 43
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#define MCAST_UNBLOCK_SOURCE 44
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#define MCAST_JOIN_SOURCE_GROUP 45
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#define MCAST_LEAVE_SOURCE_GROUP 46
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#ifndef __INSIDE_CYGWIN_NET__
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#define MCAST_INCLUDE 0
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#define MCAST_EXCLUDE 1
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#endif
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/* Old WinSock1 values, needed internally */
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#ifdef __INSIDE_CYGWIN__
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#define _WS1_IP_OPTIONS 1
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#define _WS1_IP_MULTICAST_IF 2
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#define _WS1_IP_MULTICAST_TTL 3
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#define _WS1_IP_MULTICAST_LOOP 4
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#define _WS1_IP_ADD_MEMBERSHIP 5
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#define _WS1_IP_DROP_MEMBERSHIP 6
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#define _WS1_IP_TTL 7
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#define _WS1_IP_TOS 8
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#define _WS1_IP_DONTFRAGMENT 9
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#endif
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/* IPX options */
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#define IPX_TYPE 1
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/* TCP options - this way around because someone left a set in the c library includes */
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#ifndef TCP_NODELAY
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#define TCP_NODELAY 0x0001
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#define TCP_MAXSEG 2
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#endif
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/* SUS symbolic values for the second parm to shutdown(2) */
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#define SHUT_RD 0 /* == Win32 SD_RECEIVE */
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#define SHUT_WR 1 /* == Win32 SD_SEND */
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#define SHUT_RDWR 2 /* == Win32 SD_BOTH */
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/* The various priorities. */
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#define SOPRI_INTERACTIVE 0
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#define SOPRI_NORMAL 1
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#define SOPRI_BACKGROUND 2
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#ifdef __cplusplus
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};
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#endif /* __cplusplus */
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#endif /* _CYGWIN_SOCKET_H */
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