Remove the need for the custom SPHINXBUILD plugin.
[m6w6/libmemcached] / libtest / dns.cc
1 /* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
2 *
3 * Data Differential YATL (i.e. libtest) library
4 *
5 * Copyright (C) 2012 Data Differential, http://datadifferential.com/
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36
37 #include <config.h>
38 #include <libtest/common.h>
39
40 #include <sys/types.h>
41 #include <sys/socket.h>
42 #include <netdb.h>
43
44 namespace libtest {
45
46 bool lookup(const char* host)
47 {
48 assert(host);
49 bool success= false;
50 struct addrinfo *addrinfo= NULL;
51
52 int limit= 5;
53 while (limit--)
54 {
55 int ret;
56 if ((ret= getaddrinfo(host, NULL, NULL, &(addrinfo))))
57 {
58 switch (ret)
59 {
60 case EAI_AGAIN:
61 continue;
62
63 case EAI_NONAME:
64 default:
65 break;
66 }
67 }
68 else
69 {
70 success= true;
71 break;
72 }
73 }
74
75 freeaddrinfo(addrinfo);
76
77 return success;
78 }
79
80
81 bool check_dns()
82 {
83 if (lookup("exist.gearman.info") == false)
84 {
85 return false;
86 }
87
88 if (lookup("does_not_exist.gearman.info")) // This should fail, if it passes,...
89 {
90 return false;
91 }
92
93 return true;
94 }
95
96 } // namespace libtest
97