diff options
Diffstat (limited to 'lib/replace/libreplace_network.m4')
| -rw-r--r-- | lib/replace/libreplace_network.m4 | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/lib/replace/libreplace_network.m4 b/lib/replace/libreplace_network.m4 index f9bca40ce94..eadcc6bfc11 100644 --- a/lib/replace/libreplace_network.m4 +++ b/lib/replace/libreplace_network.m4 @@ -240,12 +240,25 @@ if test x"$libreplace_cv_HAVE_GETADDRINFO" = x"yes"; then { struct addrinfo hints = {0,}; struct addrinfo *ppres; - const char hostname[] = "0.0.0.0"; + const char hostname1[] = "0.0.0.0"; + const char hostname2[] = "127.0.0.1"; + const char hostname3[] = "::"; hints.ai_socktype = SOCK_STREAM; - hints.ai_family = AF_INET; + hints.ai_family = AF_UNSPEC; hints.ai_flags = AI_NUMERICHOST|AI_PASSIVE|AI_ADDRCONFIG; - return getaddrinfo(hostname, NULL, &hints, &ppres) != 0 ? 1 : 0; + /* Test for broken flag combination on AIX. */ + if (getaddrinfo(hostname1, NULL, &hints, &ppres) == EAI_BADFLAGS) { + /* This fails on an IPv6-only box, but not with + the EAI_BADFLAGS error. */ + return 1; + } + if (getaddrinfo(hostname2, NULL, &hints, &ppres) == 0) { + /* IPv4 lookup works - good enough. */ + return 0; + } + /* Uh-oh, no IPv4. Are we IPv6-only ? */ + return getaddrinfo(hostname3, NULL, &hints, &ppres) != 0 ? 1 : 0; }], libreplace_cv_HAVE_GETADDRINFO=yes, libreplace_cv_HAVE_GETADDRINFO=no) |