stdlib/ext/socket/sockport.h

   1 /************************************************
   2
   3   sockport.h -
   4
   5   $Author: shyouhei $
   6   $Date: 2007-02-12 15:01:19 -0800 (Mon, 12 Feb 2007) $
   7   created at: Fri Apr 30 23:19:34 JST 1999
   8
   9 ************************************************/
  10
  11 #ifndef SOCKPORT_H
  12 #define SOCKPORT_H
  13
  14 #ifndef SA_LEN
  15 # ifdef HAVE_SA_LEN
  16 #  define SA_LEN(sa) (sa)->sa_len
  17 # else
  18 #  ifdef INET6
  19 #   define SA_LEN(sa) \
  20         (((sa)->sa_family == AF_INET6) ? sizeof(struct sockaddr_in6) \
  21                                        : sizeof(struct sockaddr))
  22 #  else
  23     /* by tradition, sizeof(struct sockaddr) covers most of the sockaddrs */
  24 #   define SA_LEN(sa)   (sizeof(struct sockaddr))
  25 #  endif
  26 # endif
  27 #endif
  28
  29 #ifdef HAVE_SA_LEN
  30 # define SET_SA_LEN(sa, len) (sa)->sa_len = (len)
  31 #else
  32 # define SET_SA_LEN(sa, len) (len)
  33 #endif
  34
  35 #ifdef HAVE_SIN_LEN
  36 # define SIN_LEN(si) (si)->sin_len
  37 # define SET_SIN_LEN(si,len) (si)->sin_len = (len)
  38 #else
  39 # define SIN_LEN(si) sizeof(struct sockaddr_in)
  40 # define SET_SIN_LEN(si,len)
  41 #endif
  42
  43 #ifndef IN_MULTICAST
  44 # define IN_CLASSD(i)   (((long)(i) & 0xf0000000) == 0xe0000000)
  45 # define IN_MULTICAST(i)        IN_CLASSD(i)
  46 #endif
  47
  48 #ifndef IN_EXPERIMENTAL
  49 # define IN_EXPERIMENTAL(i) ((((long)(i)) & 0xe0000000) == 0xe0000000)
  50 #endif
  51
  52 #ifndef IN_CLASSA_NSHIFT
  53 # define IN_CLASSA_NSHIFT 24
  54 #endif
  55
  56 #ifndef IN_LOOPBACKNET
  57 # define IN_LOOPBACKNET 127
  58 #endif
  59
  60 #ifndef AF_UNSPEC
  61 # define AF_UNSPEC 0
  62 #endif
  63
  64 #ifndef PF_UNSPEC
  65 # define PF_UNSPEC AF_UNSPEC
  66 #endif
  67
  68 #ifndef PF_INET
  69 # define PF_INET AF_INET
  70 #endif
  71
  72 #if defined(HOST_NOT_FOUND) && !defined(h_errno) && !defined(__CYGWIN__)
  73 extern int h_errno;
  74 #endif
  75
  76 #endif