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// -*- C++ -*-
#include "ace/OS_NS_arpa_inet.h"
#if !defined (ACE_HAS_INLINED_OSCALLS)
# include "ace/OS_NS_arpa_inet.inl"
#endif /* ACE_HAS_INLINED_OSCALLS */
#include "ace/Basic_Types.h"
#include <cstdlib>
ACE_BEGIN_VERSIONED_NAMESPACE_DECL
int
ACE_OS::inet_aton (const char *host_name, struct in_addr *addr)
{
#if defined (ACE_LACKS_INET_ATON)
# if defined (ACE_WIN32)
// Windows Server 2003 changed the behavior of a zero-length input
// string to inet_addr(). It used to return 0 (INADDR_ANY) but now
// returns -1 (INADDR_NONE). It will return INADDR_ANY for a 1-space
// string, though, as do previous versions of Windows.
if (host_name == 0 || host_name[0] == '\0')
host_name = " ";
# endif /* ACE_WIN32 */
# if defined (ACE_LACKS_INET_ADDR)
if (!host_name)
return 0;
ACE_UINT32 ip = 0;
int part = 0;
for (const char *dot; *host_name; host_name = *dot ? dot + 1 : dot, ++part)
{
if (part > 3)
return 0;
dot = ACE_OS::strchr (host_name, '.');
if (!dot)
dot = host_name + ACE_OS::strlen (host_name);
char *last;
const unsigned long n = std::strtoul (host_name, &last, 0);
if (last != dot)
return 0;
if (!*dot)
switch (part)
{
case 0:
# if ACE_SIZEOF_LONG > 4
if (n > 0xffffffff)
return 0;
# endif
ip = static_cast<ACE_UINT32> (n);
continue;
case 1:
if (n > 0xffffff)
return 0;
ip <<= 24;
ip |= n;
continue;
case 2:
if (n > 0xffff)
return 0;
ip <<= 16;
ip |= n;
continue;
}
if (n > 0xff)
return 0;
ip <<= 8;
ip |= n;
}
addr->s_addr = ACE_HTONL (ip);
return 1;
# else
unsigned long ip_addr = ACE_OS::inet_addr (host_name);
if (ip_addr == INADDR_NONE
// Broadcast addresses are weird...
&& ACE_OS::strcmp (host_name, "255.255.255.255") != 0)
return 0;
else if (addr == 0)
return 0;
else
{
addr->s_addr = ip_addr; // Network byte ordered
return 1;
}
# endif // ACE_LACKS_INET_ADDR
#elif defined (ACE_VXWORKS) && (ACE_VXWORKS < 0x700)
// inet_aton() returns OK (0) on success and ERROR (-1) on failure.
// Must reset errno first. Refer to WindRiver SPR# 34949, SPR# 36026
::errnoSet(0);
int result = ERROR;
ACE_OSCALL (::inet_aton (const_cast <char*>(host_name), addr), int, ERROR, result);
return (result == ERROR) ? 0 : 1;
#else
// inet_aton() returns 0 upon failure, not -1 since -1 is a valid
// address (255.255.255.255).
ACE_OSCALL_RETURN (::inet_aton (host_name, addr), int, 0);
#endif /* ACE_LACKS_INET_ATON */
}
ACE_END_VERSIONED_NAMESPACE_DECL
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