ACE/ace/Sock_Connect.h

   1 // -*- C++ -*-
   2
   3 //==========================================================================
   4 /**
   5  *  @file   Sock_Connect.h
   6  *
   7  *  @author Priyanka Gontla <pgontla@ece.uci.edu>
   8  *  @author Based on code that existed formerly in ACE.h.
   9  */
  10 //==========================================================================
  11
  12 #ifndef ACE_SOCK_CONNECT_H
  13 #define ACE_SOCK_CONNECT_H
  14
  15 #include /**/ "ace/pre.h"
  16
  17 #include /**/ "ace/ACE_export.h"
  18
  19 #if !defined (ACE_LACKS_PRAGMA_ONCE)
  20 # pragma once
  21 #endif /* ACE_LACKS_PRAGMA_ONCE */
  22
  23 #include "ace/Basic_Types.h"
  24 #include "ace/os_include/netinet/os_in.h"
  25
  26 ACE_BEGIN_VERSIONED_NAMESPACE_DECL
  27
  28 // Forward Declarations
  29 class ACE_INET_Addr;
  30
  31 namespace ACE
  32 {
  33   // = Socket connection establishment calls.
  34
  35   /// Bind a new unused port to @a handle.
  36   extern ACE_Export int bind_port (ACE_HANDLE handle,
  37                                    ACE_UINT32 ip_addr = INADDR_ANY,
  38                                    int address_family = AF_UNSPEC);
  39
  40   /**
  41    * Get our broadcast address based on our @a host_addr.  If
  42    * @a hostname is non-0 we'll use it to determine our IP address.  If
  43    * @a handle is not ACE_INVALID_HANDLE then we'll use this to
  44    * determine our broadcast address, otherwise we'll have to create a
  45    * socket internally (and free it).  Returns -1 on failure and 0 on
  46    * success.
  47    */
  48   extern ACE_Export int get_bcast_addr (
  49     ACE_UINT32 &bcast_addr,
  50     const ACE_TCHAR *hostname = 0,
  51     ACE_UINT32 host_addr = 0,
  52     ACE_HANDLE handle = ACE_INVALID_HANDLE);
  53
  54   /// Get fully qualified host/domain name.
  55   extern ACE_Export int get_fqdn (ACE_INET_Addr const & addr,
  56                                   char hostname[],
  57                                   size_t len);
  58
  59   /**
  60    * Return count and array of all configured IP interfaces on this
  61    * host, rc = 0 on success (count == number of interfaces else -1).
  62    * Caller is responsible for calling delete [] on @a addr_array.
  63    */
  64   extern ACE_Export int get_ip_interfaces (size_t &count,
  65                                            ACE_INET_Addr *&addr_array);
  66
  67   /**
  68    * Helper routine for get_ip_interfaces, differs by UNIX platform so
  69    * put into own subroutine.  perform some ioctls to retrieve ifconf
  70    * list of ifreq structs.
  71    */
  72   extern ACE_Export int count_interfaces (ACE_HANDLE handle,
  73                                           size_t &how_many);
  74
  75   /// Routine to return a handle from which @c ioctl requests can be
  76   /// made.  Caller must close the handle.
  77   extern ACE_Export ACE_HANDLE get_handle ();
  78
  79   /// Returns @c true if IPv4 is enabled on the current host; @c false
  80   /// if not.
  81   /**
  82    * This is an execution-time check. If ACE has not been compiled
  83    * with @c ACE_HAS_IPV6, it always returns @c true. This function
  84    * tries to create a @c PF_INET socket, returning @c true if it
  85    * succeeds, and @c false if it fails. Caches the result so it only
  86      gets checked once.
  87    */
  88   extern ACE_Export bool ipv4_enabled ();
  89
  90   /**
  91    * Returns 1 if IPv6 is enabled on the current host; 0 if not.
  92    * This is an execution-time check. If ACE has not been compiled
  93    * with ACE_HAS_IPV6, it always returns 0. If ACE_HAS_IPV6 is
  94    * enabled, this function tries to create a PF_INET6 socket,
  95    * returning 1 if it succeeds, and 0 if it fails. Caches the result
  96    * so it only gets checked once.
  97    */
  98   extern ACE_Export int ipv6_enabled ();
  99 }
 100
 101 ACE_END_VERSIONED_NAMESPACE_DECL
 102
 103 #include /**/ "ace/post.h"
 104
 105 #endif  /* ACE_SOCK_CONNECT_H */