sysdeps/unix/sysv/linux/mips/bits/socket.h

   1 /* System-specific socket constants and types.  Linux version.
   2    Copyright (C) 1991, 92, 94, 95, 96, 97, 98 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Library General Public License as
   7    published by the Free Software Foundation; either version 2 of the
   8    License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Library General Public License for more details.
  14
  15    You should have received a copy of the GNU Library General Public
  16    License along with the GNU C Library; see the file COPYING.LIB.  If not,
  17    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  18    Boston, MA 02111-1307, USA.  */
  19
  20 #if !defined _SYS_STAT_H && !defined _NETINET_IN_H
  21 # error "Never include <bits/socket.h> directly; use <sys/socket.h> instead."
  22 #endif
  23
  24 #define __need_size_t
  25 #define __need_NULL
  26 #include <stddef.h>
  27
  28 /* Type for length arguments in socket calls.  */
  29 typedef unsigned int socklen_t;
  30
  31 /* Supported address families. */
  32 #define PF_UNSPEC       0
  33 #define PF_LOCAL        1       /* Local to host (pipes and file-domain).  */
  34 #define PF_UNIX         PF_LOCAL /* Old BSD name for PF_LOCAL.  */
  35 #define PF_FILE         PF_LOCAL /* POSIX name for PF_LOCAL.  */
  36 #define PF_INET         2       /* IP protocol family.  */
  37 #define PF_AX25         3       /* Amateur Radio AX.25.  */
  38 #define PF_IPX          4       /* Novell Internet Protocol.  */
  39 #define PF_APPLETALK    5       /* Don't use this.  */
  40 #define PF_NETROM       6       /* Amateur radio NetROM.  */
  41 #define PF_BRIDGE       7       /* Multiprotocol bridge.  */
  42 #define PF_AAL5         8       /* Reserved for Werner's ATM.  */
  43 #define PF_X25          9       /* Reserved for X.25 project.  */
  44 #define PF_INET6        10      /* IP version 6.  */
  45 #define PF_ROSE         11      /* Amateur Radio X.25 PLP       */
  46 #define PF_DECnet       12      /* Reserved for DECnet project  */
  47 #define PF_NETBEUI      13      /* Reserved for 802.2LLC project*/
  48 #define PF_SECURITY     14      /* Security callback pseudo AF */
  49 #define PF_KEY          15      /* PF_KEY key management API */
  50 #define PF_NETLINK      16
  51 #define PF_ROUTE        PF_NETLINK /* Alias to emulate 4.4BSD */
  52 #define PF_PACKET       17      /* Packet family                */
  53 #define PF_ASH          18      /* Ash */
  54 #define PF_MAX          32              /* For now.. */
  55
  56 /* Protocol families, same as address families. */
  57 #define AF_UNSPEC       PF_UNSPEC
  58 #define AF_UNIX         PF_UNIX
  59 #define AF_LOCAL        PF_LOCAL
  60 #define AF_FILE         PF_FILE
  61
  62 #define AF_AX25         PF_AX25
  63 #define AF_IPX          PF_IPX
  64 #define AF_APPLETALK    PF_APPLETALK
  65 #define AF_NETROM       PF_NETROM
  66 #define AF_BRIDGE       PF_BRIDGE
  67 #define AF_AAL5         PF_AAL5
  68 #define AF_X25          PF_X25
  69 #define AF_INET6        PF_INET6
  70 #define AF_ROSE         PF_ROSE
  71 #define AF_DECNET       PF_DECNET
  72 #define AF_NETBEUI      PF_NETBEUI
  73 #define AF_SECURITY     PF_SECURITY
  74 #define pseudo_AF_KEY   PF_KEY
  75 #define AF_NETLINK      PF_NETLINK
  76 #define AF_ROUTE        PF_ROUTE
  77 #define AF_PACKET       PF_PACKET
  78 #define AF_ASH          PF_ASH
  79 #define AF_MAX          PF_MAX
  80
  81 /* Socket level values.  Others are defined in the appropriate headers.
  82
  83    XXX These definitions also should go into the appropriate headers as
  84    far as they are available.  */
  85 #define SOL_IPV6        41
  86 #define SOL_ICMPV6      58
  87 #define SOL_RAW         255
  88 #define SOL_DECNET      261
  89 #define SOL_X25         262
  90
  91 /* Maximum queue length specifiable by listen.  */
  92 #define SOMAXCONN       128
  93
  94 /* Get the definition of the macro to define the common sockaddr members.  */
  95 #include <bits/sockaddr.h>
  96
  97 /* Structure describing a generic socket address.  */
  98 struct sockaddr
  99   {
 100     __SOCKADDR_COMMON (sa_);    /* Common data: address family and length.  */
 101     char sa_data[14];           /* Address data.  */
 102   };
 103
 104
 105 /* Bits in the FLAGS argument to `send', `recv', et al.  */
 106 enum
 107   {
 108     MSG_OOB             = 0x01, /* Process out-of-band data.  */
 109     MSG_PEEK            = 0x02, /* Peek at incoming messages.  */
 110     MSG_DONTROUTE       = 0x04, /* Don't use local routing.  */
 111     MSG_CTRUNC          = 0x08, /* Control data lost before delivery.  */
 112     MSG_PROXY           = 0x10  /* Supply or ask second address.  */
 113   };
 114
 115
 116 /* Structure describing messages sent by
 117    `sendmsg' and received by `recvmsg'.  */
 118 struct msghdr
 119   {
 120     __ptr_t msg_name;           /* Address to send to/receive from.  */
 121     socklen_t msg_namelen;      /* Length of address data.  */
 122
 123     struct iovec *msg_iov;      /* Vector of data to send/receive into.  */
 124     int msg_iovlen;             /* Number of elements in the vector.  */
 125
 126     __ptr_t msg_control;        /* Ancillary data (eg BSD filedesc passing). */
 127     socklen_t msg_controllen;   /* Ancillary data buffer length.  */
 128
 129     int msg_flags;              /* Flags on received message.  */
 130   };
 131
 132 /* Structure used for storage of ancillary data object information.  */
 133 struct cmsghdr
 134   {
 135     socklen_t cmsg_len;         /* Length of data in cmsg_data plus length
 136                                    of cmsghdr structure.  */
 137     int cmsg_level;             /* Originating protocol.  */
 138     int cmsg_type;              /* Protocol specific type.  */
 139 #if !defined __STRICT_ANSI__ && defined __GNUC__ && __GNUC__ >= 2
 140     unsigned char __cmsg_data[0]; /* Ancillary data.  */
 141 #endif
 142   };
 143
 144 /* Ancillary data object manipulation macros.  */
 145 #if !defined __STRICT_ANSI__ && defined __GNUC__ && __GNUC__ >= 2
 146 # define CMSG_DATA(cmsg) ((cmsg)->__cmsg_data)
 147 #else
 148 # define CMSG_DATA(cmsg) ((unsigned char *) ((struct cmsghdr *) (cmsg) + 1))
 149 #endif
 150 #define CMSG_NXTHDR(mhdr, cmsg) __cmsg_nxthdr (mhdr, cmsg)
 151 #define CMSG_FIRSTHDR(mhdr) \
 152   ((size_t) (mhdr)->msg_controllen >= sizeof (struct cmsghdr)                 \
 153    ? (struct cmsghdr *) (mhdr)->msg_control : (struct cmsghdr *) NULL)
 154 #define CMSG_ALIGN(len) (((len) + sizeof (size_t) - 1) \
 155                          & ~(sizeof (size_t) - 1))
 156 #define CMSG_SPACE(len) (CMSG_ALIGN (len) \
 157                          + CMSG_ALIGN (sizeof (struct cmsghdr)))
 158 #define CMSG_LEN(len)   (CMSG_ALIGN (sizeof (struct cmsghdr)) + (len))
 159
 160
 161 #ifndef _EXTERN_INLINE
 162 # define _EXTERN_INLINE extern __inline
 163 #endif
 164 extern struct cmsghdr *__cmsg_nxthdr __P ((struct msghdr *__mhdr,
 165                                            struct cmsghdr *__cmsg));
 166 _EXTERN_INLINE struct cmsghdr *
 167 __cmsg_nxthdr (struct msghdr *__mhdr, struct cmsghdr *__cmsg)
 168 {
 169   if ((size_t) __cmsg->cmsg_len < sizeof (struct cmsghdr))
 170     /* The kernel header does this so there may be a reason.  */
 171     return NULL;
 172
 173   __cmsg = (struct cmsghdr *) ((unsigned char *) __cmsg
 174                                + CMSG_ALIGN (__cmsg->cmsg_len));
 175   if ((unsigned char *) (__cmsg + 1) >= ((unsigned char *) __mhdr->msg_control
 176                                          + __mhdr->msg_controllen)
 177       || ((unsigned char *) __cmsg + CMSG_ALIGN (__cmsg->cmsg_len)
 178           >= ((unsigned char *) __mhdr->msg_control + __mhdr->msg_controllen)))
 179     /* No more entries.  */
 180     return NULL;
 181   return __cmsg;
 182 }
 183
 184
 185 /* Get socket manipulation related informations from kernel headers.  */
 186 #include <asm/socket.h>
 187
 188
 189 /* Structure used to manipulate the SO_LINGER option.  */
 190 struct linger
 191   {
 192     int l_onoff;                /* Nonzero to linger on close.  */
 193     int l_linger;               /* Time to linger.  */
 194   };