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
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
|
// $Id$
// ============================================================================
//
// = LIBRARY
// tests
//
// = FILENAME
// SOCK_Connector_Test.cpp
//
// = DESCRIPTION
// This is a test of ACE_SOCK_Connector, focusing on failure cases more
// than on success cases.
//
// = AUTHOR
// Steve Huston
//
// ============================================================================
#include "ace/OS.h"
#include "ace/INET_Addr.h"
#include "ace/SOCK_Connector.h"
#include "ace/SOCK_Stream.h"
#include "test_config.h"
#if defined(__BORLANDC__) && __BORLANDC__ >= 0x0530
USELIB("..\ace\aced.lib");
//---------------------------------------------------------------------------
#endif /* defined(__BORLANDC__) && __BORLANDC__ >= 0x0530 */
// The original problem this program tested for was incorrectly saying
// a non-blocking connect completed successfully when it didn't. The
// test doesn't always work when done to localhost
// (platform-dependant) so we look around for another host - any other
// one will do.
static void
find_another_host (ASYS_TCHAR other_host[])
{
ACE_OS::strcpy (other_host, ACE_DEFAULT_SERVER_HOST); // If all else fails
#if !defined (ACE_LACKS_GETHOSTENT)
// These gethost-type things don't work everywhere.
struct hostent *h;
struct utsname un;
ACE_OS::uname (&un);
h = ACE_OS::gethostbyname (un.nodename);
// Use me if can't find another
ACE_OS::strcpy (other_host, ASYS_WIDE_STRING (h->h_name));
// @@ We really need to add wrappers for these hostent methods.
sethostent (1);
while ((h = gethostent ()) != NULL)
{
if (ACE_OS::strcmp (h->h_name, ACE_DEFAULT_SERVER_HOST) == 0)
continue;
// AIX just _has_ to be different
if (ACE_OS::strcmp (h->h_name, "loopback") == 0)
continue;
// If not me
if (ACE_OS::strcmp (h->h_name, other_host) != 0 &&
ACE_OS::strcmp (h->h_name, un.nodename) != 0 )
{
ACE_OS::strcpy (other_host, h->h_name);
break;
}
}
endhostent ();
#endif /* ! ACE_LACKS_GETHOSTENT */
}
static int
fail_no_listener_nonblocking (void)
{
ASYS_TCHAR test_host[MAXHOSTNAMELEN];
int status;
ACE_INET_Addr nobody_home;
ACE_SOCK_Connector con;
ACE_SOCK_Stream sock;
ACE_Time_Value nonblock (0, 0);
find_another_host (test_host);
ACE_DEBUG ((LM_DEBUG, ASYS_TEXT ("Testing to host %s\n"), test_host));
nobody_home.set ((u_short) 42000, test_host);
status = con.connect (sock, nobody_home, &nonblock);
// Need a port that will fail.
ACE_ASSERT (status == -1);
// On some systems, a failed connect to localhost will return
// ECONNREFUSED or ENETUNREACH directly, instead of
// EWOULDBLOCK. That is also fine.
if (errno == EWOULDBLOCK || errno == ECONNREFUSED || errno == ENETUNREACH)
{
if (sock.get_handle () != ACE_INVALID_HANDLE)
status = con.complete (sock);
if (status != -1)
{
ACE_DEBUG ((LM_DEBUG,
ASYS_TEXT ("Connect which should fail didn't\n")));
status = -1;
}
else
{
ACE_DEBUG ((LM_DEBUG, ASYS_TEXT ("%p\n"), ASYS_TEXT ("Proper fail")));
status = 0;
}
}
else
{
ACE_DEBUG ((LM_DEBUG,
ASYS_TEXT ("Test not executed fully; expected EWOULDBLOCK, %p\n"),
ASYS_TEXT ("not")));
status = -1;
}
// Just in case.
sock.close ();
return status;
}
// This test tries to hit a port that's listening. Echo (7) is pretty
// popular. Just in case, though, it won't report a failure if it gets
// "refused" (no listener) since the real fixed bug this is testing is
// a returned error of EWOULDBLOCK when the connect really did work.
// That was a side-affect of how ACE::handle_timed_complete does checks
// on some systems.
static int
succeed_nonblocking (void)
{
ASYS_TCHAR test_host[MAXHOSTNAMELEN];
int status;
ACE_INET_Addr echo_server;
ACE_SOCK_Connector con;
ACE_SOCK_Stream sock;
ACE_Time_Value nonblock (0, 0);
find_another_host (test_host);
ACE_DEBUG ((LM_DEBUG, ASYS_TEXT ("Testing to host %s\n"), test_host));
echo_server.set ((u_short) 7, test_host);
status = con.connect (sock, echo_server, &nonblock);
// Need to test the call to 'complete' really.
if (status == 0 || (status == -1 && errno != EWOULDBLOCK))
{
ACE_DEBUG((LM_DEBUG,
ASYS_TEXT ("Immediate success/fail; test not completed\n")));
status = 0;
}
else
{
if (sock.get_handle () != ACE_INVALID_HANDLE)
status = con.complete (sock);
if (status == -1)
{
ACE_DEBUG ((LM_DEBUG, ASYS_TEXT("%p\n"),
ASYS_TEXT("connect:complete")));
if (errno == ECONNREFUSED || errno == ENOTCONN)
status = 0;
}
else
ACE_DEBUG((LM_DEBUG,
ASYS_TEXT("Connect which should succeed, did\n")));
}
// Just in case.
sock.close ();
return status;
}
int
main (int, ASYS_TCHAR *[])
{
ACE_START_TEST (ASYS_TEXT ("SOCK_Connector_Test"));
int status = 0;
if (fail_no_listener_nonblocking () == -1)
status = 1;
if (succeed_nonblocking () == -1)
status = 1;
ACE_END_TEST;
return status;
}
|
