release/src-rt-6.x.4708/toolchains/hndtools-arm-linux-2.6.36-uclibc-4.5.3/arm-brcm-linux-uclibcgnueabi/sysroot/usr/include/bits/socket.h

   1 /* System-specific socket constants and types.  Linux version.
   2    Copyright (C) 1991,1992,1994-2001,2004,2006 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 Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the 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    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, write to the Free
  17    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  18    02111-1307 USA.  */
  19
  20 #ifndef __BITS_SOCKET_H
  21 #define __BITS_SOCKET_H
  22
  23 #if !defined _SYS_SOCKET_H && !defined _NETINET_IN_H
  24 # error "Never include <bits/socket.h> directly; use <sys/socket.h> instead."
  25 #endif
  26
  27 #define __need_size_t
  28 #define __need_NULL
  29 #include <stddef.h>
  30
  31 #include <limits.h>
  32 #include <sys/types.h>
  33
  34 /* Type for length arguments in socket calls.  */
  35 #ifndef __socklen_t_defined
  36 typedef __socklen_t socklen_t;
  37 # define __socklen_t_defined
  38 #endif
  39
  40 /* Types of sockets.  */
  41 enum __socket_type
  42 {
  43   SOCK_STREAM = 1,              /* Sequenced, reliable, connection-based
  44                                    byte streams.  */
  45 #define SOCK_STREAM SOCK_STREAM
  46   SOCK_DGRAM = 2,               /* Connectionless, unreliable datagrams
  47                                    of fixed maximum length.  */
  48 #define SOCK_DGRAM SOCK_DGRAM
  49   SOCK_RAW = 3,                 /* Raw protocol interface.  */
  50 #define SOCK_RAW SOCK_RAW
  51   SOCK_RDM = 4,                 /* Reliably-delivered messages.  */
  52 #define SOCK_RDM SOCK_RDM
  53   SOCK_SEQPACKET = 5,           /* Sequenced, reliable, connection-based,
  54                                    datagrams of fixed maximum length.  */
  55 #define SOCK_SEQPACKET SOCK_SEQPACKET
  56   SOCK_PACKET = 10,             /* Linux specific way of getting packets
  57                                    at the dev level.  For writing rarp and
  58                                    other similar things on the user level. */
  59 #define SOCK_PACKET SOCK_PACKET
  60
  61   /* Flags to be ORed into the type parameter of socket and socketpair and
  62      used for the flags parameter of paccept.  */
  63
  64   SOCK_CLOEXEC = 02000000,      /* Atomically set close-on-exec flag for the
  65                                    new descriptor(s).  */
  66 #define SOCK_CLOEXEC SOCK_CLOEXEC
  67   SOCK_NONBLOCK = 04000         /* Atomically mark descriptor(s) as
  68                                    non-blocking.  */
  69 #define SOCK_NONBLOCK SOCK_NONBLOCK
  70 };
  71
  72 /* Protocol families.  */
  73 #define PF_UNSPEC       0       /* Unspecified.  */
  74 #define PF_LOCAL        1       /* Local to host (pipes and file-domain).  */
  75 #define PF_UNIX         PF_LOCAL /* Old BSD name for PF_LOCAL.  */
  76 #define PF_FILE         PF_LOCAL /* Another non-standard name for PF_LOCAL.  */
  77 #define PF_INET         2       /* IP protocol family.  */
  78 #define PF_AX25         3       /* Amateur Radio AX.25.  */
  79 #define PF_IPX          4       /* Novell Internet Protocol.  */
  80 #define PF_APPLETALK    5       /* Appletalk DDP.  */
  81 #define PF_NETROM       6       /* Amateur radio NetROM.  */
  82 #define PF_BRIDGE       7       /* Multiprotocol bridge.  */
  83 #define PF_ATMPVC       8       /* ATM PVCs.  */
  84 #define PF_X25          9       /* Reserved for X.25 project.  */
  85 #define PF_INET6        10      /* IP version 6.  */
  86 #define PF_ROSE         11      /* Amateur Radio X.25 PLP.  */
  87 #define PF_DECnet       12      /* Reserved for DECnet project.  */
  88 #define PF_NETBEUI      13      /* Reserved for 802.2LLC project.  */
  89 #define PF_SECURITY     14      /* Security callback pseudo AF.  */
  90 #define PF_KEY          15      /* PF_KEY key management API.  */
  91 #define PF_NETLINK      16
  92 #define PF_ROUTE        PF_NETLINK /* Alias to emulate 4.4BSD.  */
  93 #define PF_PACKET       17      /* Packet family.  */
  94 #define PF_ASH          18      /* Ash.  */
  95 #define PF_ECONET       19      /* Acorn Econet.  */
  96 #define PF_ATMSVC       20      /* ATM SVCs.  */
  97 #define PF_SNA          22      /* Linux SNA Project */
  98 #define PF_IRDA         23      /* IRDA sockets.  */
  99 #define PF_PPPOX        24      /* PPPoX sockets.  */
 100 #define PF_WANPIPE      25      /* Wanpipe API sockets.  */
 101 #define PF_LLC          26      /* Linux LLC.  */
 102 #define PF_CAN          29      /* Controller Area Network.  */
 103 #define PF_TIPC         30      /* TIPC sockets.  */
 104 #define PF_BLUETOOTH    31      /* Bluetooth sockets.  */
 105 #define PF_IUCV         32      /* IUCV sockets.  */
 106 #define PF_RXRPC        33      /* RxRPC sockets.  */
 107 #define PF_ISDN         34      /* mISDN sockets.  */
 108 #define PF_PHONET       35      /* Phonet sockets.  */
 109 #define PF_IEEE802154   36      /* IEEE 802.15.4 sockets.  */
 110 #define PF_CAIF         37      /* CAIF sockets.  */
 111 #define PF_ALG          38      /* Algorithm sockets.  */
 112 #define PF_MAX          39      /* For now..  */
 113
 114 /* Address families.  */
 115 #define AF_UNSPEC       PF_UNSPEC
 116 #define AF_LOCAL        PF_LOCAL
 117 #define AF_UNIX         PF_UNIX
 118 #define AF_FILE         PF_FILE
 119 #define AF_INET         PF_INET
 120 #define AF_AX25         PF_AX25
 121 #define AF_IPX          PF_IPX
 122 #define AF_APPLETALK    PF_APPLETALK
 123 #define AF_NETROM       PF_NETROM
 124 #define AF_BRIDGE       PF_BRIDGE
 125 #define AF_ATMPVC       PF_ATMPVC
 126 #define AF_X25          PF_X25
 127 #define AF_INET6        PF_INET6
 128 #define AF_ROSE         PF_ROSE
 129 #define AF_DECnet       PF_DECnet
 130 #define AF_NETBEUI      PF_NETBEUI
 131 #define AF_SECURITY     PF_SECURITY
 132 #define AF_KEY          PF_KEY
 133 #define AF_NETLINK      PF_NETLINK
 134 #define AF_ROUTE        PF_ROUTE
 135 #define AF_PACKET       PF_PACKET
 136 #define AF_ASH          PF_ASH
 137 #define AF_ECONET       PF_ECONET
 138 #define AF_ATMSVC       PF_ATMSVC
 139 #define AF_SNA          PF_SNA
 140 #define AF_IRDA         PF_IRDA
 141 #define AF_PPPOX        PF_PPPOX
 142 #define AF_WANPIPE      PF_WANPIPE
 143 #define AF_LLC          PF_LLC
 144 #define AF_CAN          PF_CAN
 145 #define AF_TIPC         PF_TIPC
 146 #define AF_BLUETOOTH    PF_BLUETOOTH
 147 #define AF_IUCV         PF_IUCV
 148 #define AF_RXRPC        PF_RXRPC
 149 #define AF_ISDN         PF_ISDN
 150 #define AF_PHONET       PF_PHONET
 151 #define AF_IEEE802154   PF_IEEE802154
 152 #define AF_CAIF         PF_CAIF
 153 #define AF_ALG          PF_ALG
 154 #define AF_MAX          PF_MAX
 155
 156 /* Socket level values.  Others are defined in the appropriate headers.
 157
 158    XXX These definitions also should go into the appropriate headers as
 159    far as they are available.  */
 160 #define SOL_RAW         255
 161 #define SOL_DECNET      261
 162 #define SOL_X25         262
 163 #define SOL_PACKET      263
 164 #define SOL_ATM         264     /* ATM layer (cell level).  */
 165 #define SOL_AAL         265     /* ATM Adaption Layer (packet level).  */
 166 #define SOL_IRDA        266
 167
 168 /* Maximum queue length specifiable by listen.  */
 169 #define SOMAXCONN       128
 170
 171 /* Get the definition of the macro to define the common sockaddr members.  */
 172 #include <bits/sockaddr.h>
 173
 174 /* Structure describing a generic socket address.  */
 175 struct sockaddr
 176   {
 177     __SOCKADDR_COMMON (sa_);    /* Common data: address family and length.  */
 178     char sa_data[14];           /* Address data.  */
 179   };
 180
 181
 182 /* Structure large enough to hold any socket address (with the historical
 183    exception of AF_UNIX).  We reserve 128 bytes.  */
 184 #if ULONG_MAX > 0xffffffff
 185 # define __ss_aligntype __uint64_t
 186 #else
 187 # define __ss_aligntype __uint32_t
 188 #endif
 189 #define _SS_SIZE        128
 190 #define _SS_PADSIZE     (_SS_SIZE - (2 * sizeof (__ss_aligntype)))
 191
 192 struct sockaddr_storage
 193   {
 194     __SOCKADDR_COMMON (ss_);    /* Address family, etc.  */
 195     __ss_aligntype __ss_align;  /* Force desired alignment.  */
 196     char __ss_padding[_SS_PADSIZE];
 197   };
 198
 199
 200 /* Bits in the FLAGS argument to `send', `recv', et al.  */
 201 enum
 202   {
 203     MSG_OOB             = 0x01, /* Process out-of-band data.  */
 204 #define MSG_OOB         MSG_OOB
 205     MSG_PEEK            = 0x02, /* Peek at incoming messages.  */
 206 #define MSG_PEEK        MSG_PEEK
 207     MSG_DONTROUTE       = 0x04, /* Don't use local routing.  */
 208 #define MSG_DONTROUTE   MSG_DONTROUTE
 209 #ifdef __USE_GNU
 210     /* DECnet uses a different name.  */
 211     MSG_TRYHARD         = MSG_DONTROUTE,
 212 # define MSG_TRYHARD    MSG_DONTROUTE
 213 #endif
 214     MSG_CTRUNC          = 0x08, /* Control data lost before delivery.  */
 215 #define MSG_CTRUNC      MSG_CTRUNC
 216     MSG_PROXY           = 0x10, /* Supply or ask second address.  */
 217 #define MSG_PROXY       MSG_PROXY
 218     MSG_TRUNC           = 0x20,
 219 #define MSG_TRUNC       MSG_TRUNC
 220     MSG_DONTWAIT        = 0x40, /* Nonblocking IO.  */
 221 #define MSG_DONTWAIT    MSG_DONTWAIT
 222     MSG_EOR             = 0x80, /* End of record.  */
 223 #define MSG_EOR         MSG_EOR
 224     MSG_WAITALL         = 0x100, /* Wait for a full request.  */
 225 #define MSG_WAITALL     MSG_WAITALL
 226     MSG_FIN             = 0x200,
 227 #define MSG_FIN         MSG_FIN
 228     MSG_SYN             = 0x400,
 229 #define MSG_SYN         MSG_SYN
 230     MSG_CONFIRM         = 0x800, /* Confirm path validity.  */
 231 #define MSG_CONFIRM     MSG_CONFIRM
 232     MSG_RST             = 0x1000,
 233 #define MSG_RST         MSG_RST
 234     MSG_ERRQUEUE        = 0x2000, /* Fetch message from error queue.  */
 235 #define MSG_ERRQUEUE    MSG_ERRQUEUE
 236     MSG_NOSIGNAL        = 0x4000, /* Do not generate SIGPIPE.  */
 237 #define MSG_NOSIGNAL    MSG_NOSIGNAL
 238     MSG_MORE            = 0x8000  /* Sender will send more.  */
 239 #define MSG_MORE        MSG_MORE
 240   };
 241
 242
 243 /* Structure describing messages sent by
 244    `sendmsg' and received by `recvmsg'.  */
 245 /* Note: do not change these members to match glibc; these match the
 246    SuSv3 spec already (e.g. msg_iovlen/msg_controllen).
 247    http://www.opengroup.org/onlinepubs/009695399/basedefs/sys/socket.h.html */
 248 /* Note: linux kernel uses __kernel_size_t (which is 8bytes on 64bit
 249    platforms, and 4bytes on 32bit platforms) for msg_iovlen/msg_controllen */
 250 struct msghdr
 251   {
 252     void *msg_name;             /* Address to send to/receive from.  */
 253     socklen_t msg_namelen;      /* Length of address data.  */
 254
 255     struct iovec *msg_iov;      /* Vector of data to send/receive into.  */
 256 #if __WORDSIZE == 32
 257     int msg_iovlen;             /* Number of elements in the vector.  */
 258 #else
 259     size_t msg_iovlen;          /* Number of elements in the vector.  */
 260 #endif
 261
 262     void *msg_control;          /* Ancillary data (eg BSD filedesc passing). */
 263 #if __WORDSIZE == 32
 264     socklen_t msg_controllen;   /* Ancillary data buffer length.  */
 265 #else
 266     size_t msg_controllen;      /* Ancillary data buffer length.  */
 267 #endif
 268
 269     int msg_flags;              /* Flags on received message.  */
 270   };
 271
 272 /* Structure used for storage of ancillary data object information.  */
 273 struct cmsghdr
 274   {
 275     size_t cmsg_len;            /* Length of data in cmsg_data plus length
 276                                    of cmsghdr structure.  */
 277     int cmsg_level;             /* Originating protocol.  */
 278     int cmsg_type;              /* Protocol specific type.  */
 279 #if (!defined __STRICT_ANSI__ && __GNUC__ >= 2) || __STDC_VERSION__ >= 199901L
 280     __extension__ unsigned char __cmsg_data __flexarr; /* Ancillary data.  */
 281 #endif
 282   };
 283
 284 /* Ancillary data object manipulation macros.  */
 285 #if (!defined __STRICT_ANSI__ && __GNUC__ >= 2) || __STDC_VERSION__ >= 199901L
 286 # define CMSG_DATA(cmsg) ((cmsg)->__cmsg_data)
 287 #else
 288 # define CMSG_DATA(cmsg) ((unsigned char *) ((struct cmsghdr *) (cmsg) + 1))
 289 #endif
 290 #define CMSG_NXTHDR(mhdr, cmsg) __cmsg_nxthdr (mhdr, cmsg)
 291 #define CMSG_FIRSTHDR(mhdr) \
 292   ((size_t) (mhdr)->msg_controllen >= sizeof (struct cmsghdr)                 \
 293    ? (struct cmsghdr *) (mhdr)->msg_control : (struct cmsghdr *) NULL)
 294 #define CMSG_ALIGN(len) (((len) + sizeof (size_t) - 1) \
 295                          & (size_t) ~(sizeof (size_t) - 1))
 296 #define CMSG_SPACE(len) (CMSG_ALIGN (len) \
 297                          + CMSG_ALIGN (sizeof (struct cmsghdr)))
 298 #define CMSG_LEN(len)   (CMSG_ALIGN (sizeof (struct cmsghdr)) + (len))
 299
 300 extern struct cmsghdr *__cmsg_nxthdr (struct msghdr *__mhdr,
 301                                       struct cmsghdr *__cmsg) __THROW;
 302 #ifdef __USE_EXTERN_INLINES
 303 # ifndef _EXTERN_INLINE
 304 #  define _EXTERN_INLINE extern __inline
 305 # endif
 306 _EXTERN_INLINE struct cmsghdr *
 307 __NTH (__cmsg_nxthdr (struct msghdr *__mhdr, struct cmsghdr *__cmsg))
 308 {
 309   if ((size_t) __cmsg->cmsg_len < sizeof (struct cmsghdr))
 310     /* The kernel header does this so there may be a reason.  */
 311     return 0;
 312
 313   __cmsg = (struct cmsghdr *) ((unsigned char *) __cmsg
 314                                + CMSG_ALIGN (__cmsg->cmsg_len));
 315   if ((unsigned char *) (__cmsg + 1) > ((unsigned char *) __mhdr->msg_control
 316                                         + __mhdr->msg_controllen)
 317       || ((unsigned char *) __cmsg + CMSG_ALIGN (__cmsg->cmsg_len)
 318           > ((unsigned char *) __mhdr->msg_control + __mhdr->msg_controllen)))
 319     /* No more entries.  */
 320     return 0;
 321   return __cmsg;
 322 }
 323 #endif  /* Use `extern inline'.  */
 324
 325 /* Socket level message types.  This must match the definitions in
 326    <linux/socket.h>.  */
 327 enum
 328   {
 329     SCM_RIGHTS = 0x01           /* Transfer file descriptors.  */
 330 #define SCM_RIGHTS SCM_RIGHTS
 331 #ifdef __USE_BSD
 332     , SCM_CREDENTIALS = 0x02    /* Credentials passing.  */
 333 # define SCM_CREDENTIALS SCM_CREDENTIALS
 334 #endif
 335   };
 336
 337 /* User visible structure for SCM_CREDENTIALS message */
 338
 339 struct ucred
 340 {
 341   pid_t pid;                    /* PID of sending process.  */
 342   uid_t uid;                    /* UID of sending process.  */
 343   gid_t gid;                    /* GID of sending process.  */
 344 };
 345
 346 /* Get socket manipulation related informations from kernel headers.  */
 347 #ifndef __GLIBC__
 348 #define __GLIBC__ 2
 349 #include <asm/socket.h>
 350 #undef __GLIBC__
 351 #else
 352 #include <asm/socket.h>
 353 #endif
 354
 355
 356 /* Structure used to manipulate the SO_LINGER option.  */
 357 struct linger
 358   {
 359     int l_onoff;                /* Nonzero to linger on close.  */
 360     int l_linger;               /* Time to linger.  */
 361   };
 362
 363 #endif  /* bits/socket.h */