diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/bits/socket.h')
| -rw-r--r-- | sysdeps/unix/sysv/linux/bits/socket.h | 205 |
1 files changed, 205 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/bits/socket.h b/sysdeps/unix/sysv/linux/bits/socket.h new file mode 100644 index 0000000000..e3f53a97be --- /dev/null +++ b/sysdeps/unix/sysv/linux/bits/socket.h @@ -0,0 +1,205 @@ +/* System-specific socket constants and types. Linux version. + Copyright (C) 1991, 92, 94, 95, 96, 97 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 _SYS_SOCKET_H +#error "Never include <bits/socket.h> directly; use <sys/socket.h> instead." +#endif + + +#include <features.h> + +#define __need_size_t +#define __need_NULL +#include <stddef.h> + + +__BEGIN_DECLS + +/* 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_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_MAX 12 /* 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_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. */ +#include <bits/sockaddr.h> + +/* 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. */ + MSG_PEEK = 0x02, /* Peek at incoming messages. */ + MSG_DONTROUTE = 0x04, /* Don't use local routing. */ + MSG_CTRUNC = 0x08, /* Control data lost before delivery. */ + MSG_PROXY = 0x10 /* Supply or ask second address. */ + }; + + +/* Structure describing messages sent by + `sendmsg' and received by `recvmsg'. */ +struct msghdr + { + __ptr_t msg_name; /* Address to send to/receive from. */ + int msg_namelen; /* Length of address data. */ + /* XXX Should be type `size_t' according to POSIX.1g. */ + + 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 (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)) + +#ifndef _EXTERN_INLINE +# define _EXTERN_INLINE extern __inline +#endif +extern struct cmsghdr *__cmsg_nxthdr __P ((struct msghdr *__mhdr, + struct cmsghdr *__cmsg)); +_EXTERN_INLINE struct cmsghdr * +__cmsg_nxthdr (struct msghdr *__mhdr, struct cmsghdr *__cmsg) +{ + unsigned char *__p; + + if ((size_t) __cmsg->cmsg_len < sizeof (struct cmsghdr)) + /* The kernel header does this so there may be a reason. */ + return NULL; + + __p = (((unsigned char *) __cmsg) + + ((__cmsg->cmsg_len + sizeof (long int) - 1) & ~sizeof (long int))); + if (__p >= (unsigned char *) __mhdr->msg_control + __mhdr->msg_controllen) + /* No more entries. */ + return NULL; + return (struct cmsghdr *) __p; +} + + +/* Get socket manipulation related informations from kernel headers. */ +#include <asm/socket.h> + + +/* 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 |