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// SOCK_Dgram_Bcast.cpp
// $Id$
#define ACE_BUILD_DLL
#include "ace/SOCK_Dgram_Bcast.h"
ACE_ALLOC_HOOK_DEFINE(ACE_SOCK_Dgram_Bcast)
ACE_Bcast_Node::ACE_Bcast_Node (ACE_INET_Addr &addr,
ACE_Bcast_Node *next)
: bcast_addr_ (addr),
next_ (next)
{
ACE_TRACE ("ACE_Bcast_Node::ACE_Bcast_Node");
}
void
ACE_SOCK_Dgram_Bcast::dump (void) const
{
ACE_TRACE ("ACE_SOCK_Dgram_Bcast::dump");
}
// Close up and release resources.
int
ACE_SOCK_Dgram_Bcast::close (void)
{
ACE_TRACE ("ACE_SOCK_Dgram_Bcast::close");
ACE_Bcast_Node *temp = this->if_list_;
// Release the dynamically allocated memory.
while (temp != 0)
{
ACE_Bcast_Node *hold = temp->next_;
delete temp;
temp = hold;
}
// Shut down the descriptor.
return ACE_SOCK::close ();
}
// Here's the simple-minded constructor.
ACE_SOCK_Dgram_Bcast::ACE_SOCK_Dgram_Bcast (void)
: if_list_ (0)
{
ACE_TRACE ("ACE_SOCK_Dgram_Bcast::ACE_SOCK_Dgram_Bcast");
}
// Here's the general-purpose constructor used by a connectionless
// datagram ``server''...
ACE_SOCK_Dgram_Bcast::ACE_SOCK_Dgram_Bcast (const ACE_Addr &local,
int protocol_family,
int protocol)
: ACE_SOCK_Dgram (local, protocol_family, protocol),
if_list_ (0)
{
ACE_TRACE ("ACE_SOCK_Dgram_Bcast::ACE_SOCK_Dgram_Bcast");
if (this->mk_broadcast () == -1)
ACE_ERROR ((LM_ERROR, "%p\n", "ACE_SOCK_Dgram_Bcast"));
}
// Here's the general-purpose open routine.
int
ACE_SOCK_Dgram_Bcast::open (const ACE_Addr &local,
int protocol_family,
int protocol)
{
ACE_TRACE ("ACE_SOCK_Dgram_Bcast::open");
if (this->ACE_SOCK_Dgram::open (local, protocol_family,
protocol) == -1)
return -1;
return this->mk_broadcast ();
}
// Make broadcast available for Datagram socket.
int
ACE_SOCK_Dgram_Bcast::mk_broadcast (void)
{
ACE_TRACE ("ACE_SOCK_Dgram_Bcast::mk_broadcast");
int one = 1;
if (ACE_OS::setsockopt (this->get_handle (), SOL_SOCKET, SO_BROADCAST,
(char *) &one, sizeof one) == -1)
return -1;
#if !defined(ACE_WIN32)
char buf[BUFSIZ];
struct ifconf ifc;
struct ifreq *ifr;
struct ifreq flags;
struct ifreq if_req;
int s = this->get_handle ();
ifc.ifc_len = sizeof buf;
ifc.ifc_buf = buf;
// Get interface structure and initialize the addresses using UNIX techniques.
if (ACE_OS::ioctl (s, SIOCGIFCONF, (char *) &ifc) == -1)
ACE_ERROR_RETURN ((LM_ERROR, "%p\n",
"ACE_SOCK_Dgram_Bcast::mk_broadcast: ioctl (get interface configuration)"),
ACE_INVALID_HANDLE);
ifr = ifc.ifc_req;
for (int n = ifc.ifc_len / sizeof (struct ifreq) ; n > 0; n--, ifr++)
{
if (ifr->ifr_addr.sa_family != AF_INET)
{
ACE_ERROR ((LM_ERROR, "%p\n", "ACE_SOCK_Dgram_Bcast::mk_broadcast: Not AF_INET"));
continue;
}
flags = if_req = *ifr;
if (ACE_OS::ioctl (s, SIOCGIFFLAGS, (char *) &flags) == -1)
{
ACE_ERROR ((LM_ERROR, "%p\n",
"ACE_SOCK_Dgram_Bcast::mk_broadcast: ioctl (get interface flags)"));
continue;
}
if (ACE_BIT_ENABLED (flags.ifr_flags, IFF_UP) == 0)
{
ACE_ERROR ((LM_ERROR, "%p\n",
"ACE_SOCK_Dgram_Bcast::mk_broadcast: Network interface is not up"));
continue;
}
if (ACE_BIT_ENABLED (flags.ifr_flags, IFF_LOOPBACK))
continue;
if (ACE_BIT_ENABLED (flags.ifr_flags, IFF_BROADCAST))
{
if (ACE_OS::ioctl (s, SIOCGIFBRDADDR, (char *) &if_req) == -1)
ACE_ERROR ((LM_ERROR, "%p\n",
"ACE_SOCK_Dgram_Bcast::mk_broadcast: ioctl (get broadaddr)"));
else
{
ACE_INET_Addr addr ((sockaddr_in *) &if_req.ifr_broadaddr,
sizeof if_req.ifr_broadaddr);
ACE_NEW_RETURN (this->if_list_, ACE_Bcast_Node (addr, this->if_list_), -1);
}
}
else
ACE_ERROR ((LM_ERROR, "%p\n",
"ACE_SOCK_Dgram_Bcast::mk_broadcast: Broadcast is not enable for this interface."));
}
#else
ACE_INET_Addr addr (u_short (0), ACE_UINT32 (INADDR_BROADCAST));
ACE_NEW_RETURN (this->if_list_, ACE_Bcast_Node (addr, this->if_list_), -1);
#endif /* !ACE_WIN32 */
return this->if_list_ == 0 ? -1 : 0;
}
// Broadcast the datagram to every interface. Returns the average
// number of bytes sent.
ssize_t
ACE_SOCK_Dgram_Bcast::send (const void *buf,
size_t n,
u_short port_number,
int flags) const
{
ACE_TRACE ("ACE_SOCK_Dgram_Bcast::send");
size_t iterations = 0;
ssize_t total_bytes = 0;
if (this->if_list_ == 0)
return -1;
for (ACE_Bcast_Node *temp = this->if_list_;
temp != 0;
temp = temp->next_)
{
temp->bcast_addr_.set_port_number (port_number);
ssize_t bytes_sent = ACE_SOCK_Dgram::send (buf, n,
temp->bcast_addr_,
flags);
if (bytes_sent == -1)
return -1;
else
total_bytes += bytes_sent;
iterations++;
}
return iterations == 0 ? 0 : total_bytes / iterations;
}
#if defined (ACE_HAS_MSG)
// Broadcast datagram to every interfaces.
ssize_t
ACE_SOCK_Dgram_Bcast::send (const iovec iov[],
size_t n,
u_short /* port_number */,
int flags) const
{
ACE_TRACE ("ACE_SOCK_Dgram_Bcast::send");
if (this->if_list_ == 0)
return -1;
// Send the message to every interface.
for (ACE_Bcast_Node *temp = this->if_list_; temp != 0; temp++)
if (ACE_SOCK_Dgram::send (iov, n, temp->bcast_addr_, flags) == -1)
return -1;
return 0;
}
// Broadcast an ACE_IO_Vector of size N to ADDR as a datagram (note
// that addr must be preassigned to the broadcast address of the
// subnet...).
ssize_t
ACE_SOCK_Dgram_Bcast::send (const iovec iov[],
size_t n,
const ACE_Addr &addr,
int flags) const
{
ACE_TRACE ("ACE_SOCK_Dgram_Bcast::send");
return ACE_SOCK_Dgram::send (iov, n, addr, flags);
}
#endif /* ACE_HAS_MSG */
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