dep/ACE_wrappers/ace/OS_NS_arpa_inet.cpp

   1 // -*- C++ -*-
   2 // $Id: OS_NS_arpa_inet.cpp 80826 2008-03-04 14:51:23Z wotte $
   3
   4 #include "ace/OS_NS_arpa_inet.h"
   5
   6 ACE_RCSID(ace, OS_NS_arpa_inet, "$Id: OS_NS_arpa_inet.cpp 80826 2008-03-04 14:51:23Z wotte $")
   7
   8 #if !defined (ACE_HAS_INLINED_OSCALLS)
   9 # include "ace/OS_NS_arpa_inet.inl"
  10 #endif /* ACE_HAS_INLINED_OSCALLS */
  11
  12 ACE_BEGIN_VERSIONED_NAMESPACE_DECL
  13
  14 int
  15 ACE_OS::inet_aton (const char *host_name, struct in_addr *addr)
  16 {
  17 #if defined (ACE_LACKS_INET_ATON)
  18 #  if defined (ACE_WIN32)
  19   // Windows Server 2003 changed the behavior of a zero-length input
  20   // string to inet_addr(). It used to return 0 (INADDR_ANY) but now
  21   // returns -1 (INADDR_NONE). It will return INADDR_ANY for a 1-space
  22   // string, though, as do previous versions of Windows.
  23   if (host_name == 0 || host_name[0] == '\0')
  24     host_name = " ";
  25 #  endif /* ACE_WIN32 */
  26   unsigned long ip_addr = ACE_OS::inet_addr (host_name);
  27
  28   if (ip_addr == INADDR_NONE
  29       // Broadcast addresses are weird...
  30       && ACE_OS::strcmp (host_name, "255.255.255.255") != 0)
  31     return 0;
  32   else if (addr == 0)
  33     return 0;
  34   else
  35     {
  36       addr->s_addr = ip_addr;  // Network byte ordered
  37       return 1;
  38     }
  39 #elif defined (ACE_VXWORKS) && (ACE_VXWORKS <= 0x660)
  40   // inet_aton() returns OK (0) on success and ERROR (-1) on failure.
  41   // Must reset errno first. Refer to WindRiver SPR# 34949, SPR# 36026
  42   ::errnoSet(0);
  43   int result = ERROR;
  44   ACE_OSCALL (::inet_aton (const_cast <char*>(host_name), addr), int, ERROR, result);
  45   return (result == ERROR) ? 0 : 1;
  46 #else
  47   // inet_aton() returns 0 upon failure, not -1 since -1 is a valid
  48   // address (255.255.255.255).
  49   ACE_OSCALL_RETURN (::inet_aton (host_name, addr), int, 0);
  50 #endif  /* ACE_LACKS_INET_ATON */
  51 }
  52
  53 ACE_END_VERSIONED_NAMESPACE_DECL