include/ws2def.h

   1 /*
   2  * Copyright (C) 2009 Robert Shearman
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  17  */
  18
  19 #ifndef _WS2DEF_
  20 #define _WS2DEF_
  21
  22 #include <inaddr.h>
  23
  24 #ifdef USE_WS_PREFIX
  25 #define WS(x)    WS_##x
  26 #else
  27 #define WS(x)    x
  28 #endif
  29
  30 #ifndef __CSADDR_DEFINED__
  31 #define __CSADDR_DEFINED__
  32
  33 typedef struct _SOCKET_ADDRESS {
  34         LPSOCKADDR      lpSockaddr;
  35         INT             iSockaddrLength;
  36 } SOCKET_ADDRESS, *PSOCKET_ADDRESS, *LPSOCKET_ADDRESS;
  37
  38 typedef struct _CSADDR_INFO {
  39         SOCKET_ADDRESS  LocalAddr;
  40         SOCKET_ADDRESS  RemoteAddr;
  41         INT             iSocketType;
  42         INT             iProtocol;
  43 } CSADDR_INFO, *PCSADDR_INFO, *LPCSADDR_INFO;
  44 #endif
  45
  46 #ifdef USE_WS_PREFIX
  47 #define WS__SS_MAXSIZE 128
  48 #define WS__SS_ALIGNSIZE (sizeof(__int64))
  49 #define WS__SS_PAD1SIZE (WS__SS_ALIGNSIZE - sizeof(short))
  50 #define WS__SS_PAD2SIZE (WS__SS_MAXSIZE - 2 * WS__SS_ALIGNSIZE)
  51 #else
  52 #define _SS_MAXSIZE 128
  53 #define _SS_ALIGNSIZE (sizeof(__int64))
  54 #define _SS_PAD1SIZE (_SS_ALIGNSIZE - sizeof(short))
  55 #define _SS_PAD2SIZE (_SS_MAXSIZE - 2 * _SS_ALIGNSIZE)
  56 #endif
  57
  58 typedef struct WS(sockaddr_storage) {
  59         short ss_family;
  60         char __ss_pad1[WS(_SS_PAD1SIZE)];
  61         __int64 DECLSPEC_ALIGN(8) __ss_align;
  62         char __ss_pad2[WS(_SS_PAD2SIZE)];
  63 } SOCKADDR_STORAGE, *PSOCKADDR_STORAGE, *LPSOCKADDR_STORAGE;
  64
  65 /*socket address list */
  66 typedef struct _SOCKET_ADDRESS_LIST {
  67         INT             iAddressCount;
  68         SOCKET_ADDRESS  Address[1];
  69 } SOCKET_ADDRESS_LIST, *LPSOCKET_ADDRESS_LIST;
  70
  71 typedef enum {
  72     ScopeLevelInterface    = 1,
  73     ScopeLevelLink         = 2,
  74     ScopeLevelSubnet       = 3,
  75     ScopeLevelAdmin        = 4,
  76     ScopeLevelSite         = 5,
  77     ScopeLevelOrganization = 8,
  78     ScopeLevelGlobal       = 14
  79 } SCOPE_LEVEL;
  80
  81 /*
  82  * Macros for retrieving control message data returned by WSARecvMsg()
  83  */
  84 #define WSA_CMSG_DATA(cmsg)     ((UCHAR*)((WSACMSGHDR*)(cmsg)+1))
  85 #define WSA_CMSG_FIRSTHDR(mhdr) ((mhdr)->Control.len >= sizeof(WSACMSGHDR) ? (WSACMSGHDR *) (mhdr)->Control.buf : (WSACMSGHDR *) 0)
  86 #define WSA_CMSG_ALIGN(len)     (((len) + sizeof(SIZE_T) - 1) & ~(sizeof(SIZE_T) - 1))
  87 /*
  88  * Next Header: If the response is too short (or the next message in the response
  89  * is too short) then return NULL, otherwise return the next control message.
  90  */
  91 #define WSA_CMSG_NXTHDR(mhdr,cmsg) \
  92         (!(cmsg) ? WSA_CMSG_FIRSTHDR(mhdr) : \
  93          ((mhdr)->Control.len < sizeof(WSACMSGHDR) ? NULL : \
  94          (((unsigned char*)(((WSACMSGHDR*)((unsigned char*)cmsg + WSA_CMSG_ALIGN(cmsg->cmsg_len)))+1) > ((unsigned char*)(mhdr)->Control.buf + (mhdr)->Control.len)) ? NULL : \
  95           (((unsigned char*)cmsg + WSA_CMSG_ALIGN(cmsg->cmsg_len)+WSA_CMSG_ALIGN(((WSACMSGHDR*)((unsigned char*)cmsg + WSA_CMSG_ALIGN(cmsg->cmsg_len)))->cmsg_len) > ((unsigned char*)(mhdr)->Control.buf + (mhdr)->Control.len)) ? NULL : \
  96            (WSACMSGHDR*)((unsigned char*)cmsg + WSA_CMSG_ALIGN(cmsg->cmsg_len))))))
  97
  98 #endif /* _WS2DEF_ */