blob: efd40b3bf20c82117ca805579a3db1b4b9a52e14 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
|
//
// Extract the address for each network interface using EXACTLY
// the same algorithm as TAO_IIOP_Acceptor, and then print
// it. This is used by the run_test.pl to know how to set up
// "expected results" for hostnames in IORs.
//
#include "ace/ACE.h"
#include "ace/Auto_Ptr.h"
#include "ace/INET_Addr.h"
#include "ace/Log_Msg.h"
ACE_RCSID (IOR_Endpoint_Hostnames, list_interfaces, "$Id$")
int
ACE_TMAIN (int argc, ACE_TCHAR *argv[])
{
ACE_UNUSED_ARG (argc);
ACE_UNUSED_ARG (argv);
// network interfaces.
ACE_INET_Addr *if_addrs = 0;
size_t if_cnt = 0;
unsigned long endpoint_count;
if (ACE::get_ip_interfaces (if_cnt,
if_addrs) != 0
&& errno != ENOTSUP)
{
// In the case where errno == ENOTSUP, if_cnt and if_addrs will
// not be modified, and will each remain equal to zero. This
// causes the default interface to be used.
return -1;
}
if (if_cnt == 0 || if_addrs == 0)
{
ACE_DEBUG ((LM_WARNING,
ACE_TEXT ("TAO (%P|%t) Unable to probe network ")
ACE_TEXT ("interfaces. Using default.\n")));
if_cnt = 1; // Force the network interface count to be one.
delete [] if_addrs;
if_addrs = new ACE_INET_Addr[if_cnt];
}
// Scan for the loopback interface since it shouldn't be included in
// the list of cached hostnames unless it is the only interface.
size_t lo_cnt = 0; // Loopback interface count
for (size_t j = 0; j < if_cnt; ++j)
if (if_addrs[j].get_ip_address () == INADDR_LOOPBACK)
lo_cnt++;
ACE_Auto_Basic_Array_Ptr<ACE_INET_Addr> safe_if_addrs (if_addrs);
// If the loopback interface is the only interface then include it
// in the list of interfaces to query for a hostname, otherwise
// exclude it from the list.
if (if_cnt == lo_cnt)
endpoint_count = static_cast<unsigned long> (if_cnt);
else
endpoint_count = static_cast<unsigned long> (if_cnt - lo_cnt);
// The number of hosts/interfaces we want to cache may not be the
// same as the number of detected interfaces so keep a separate
// count.
size_t host_cnt = 0;
for (size_t i = 0; i < if_cnt; ++i)
{
// Ignore any loopback interface if there are other
// non-loopback interfaces.
if (if_cnt != lo_cnt &&
if_addrs[i].get_ip_address() == INADDR_LOOPBACK)
continue;
// Print the address as a string.
printf ("%s\n", if_addrs[i].get_host_addr());
host_cnt++;
}
return 0;
}
|