Added some checks for the addrinfo structure.

3 files changed, 35 insertions, 1 deletions

diff --git a/CHANGES b/CHANGES
index 678319d..1642249 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,5 +1,9 @@
   Changelog for the c-ares project
 
+* June 19
+
+- Added some checks for the addrinfo structure.
+
 * June 2
 
 - William Ahern:
@@ -20,7 +24,6 @@
   value. If q is not greater than *s then it's equal and *s is always
   allocated with at least one byte.
 
-
 * May 16
 
 - Added ares_getnameinfo which mimics the getnameinfo API (another feature
diff --git a/ares_ipv6.h b/ares_ipv6.h
index 79a37c4..a6d980f 100644
--- a/ares_ipv6.h
+++ b/ares_ipv6.h
@@ -39,6 +39,20 @@ struct sockaddr_in6
 };
 #endif
 
+#ifndef HAVE_STRUCT_ADDRINFO
+struct addrinfo
+{
+  int ai_flags;
+  int ai_family;
+  int ai_socktype;
+  int ai_protocol;
+  size_t ai_addrlen;
+  char *ai_cannonname;
+  struct sockaddr *ai_addr;
+  struct addrinfo *ai_next;
+};
+#endif
+
 #ifndef NS_IN6ADDRSZ
 #if SIZEOF_STRUCT_IN6_ADDR == 0
 /* We cannot have it set to zero, so we pick a fixed value here */
diff --git a/configure.ac b/configure.ac
index 6f5100b..7390139 100644
--- a/configure.ac
+++ b/configure.ac
@@ -193,6 +193,23 @@ CARES_CHECK_STRUCT_MEMBER(
 )

 fi

 

+dnl check for the addrinfo structure

+CARES_CHECK_STRUCT(

+  [

+#ifdef HAVE_SYS_TYPES_H

+#include <sys/types.h>

+#endif

+#ifdef HAVE_WINSOCK_H

+#include <winsock.h>

+#endif

+#ifdef HAVE_NETINET_IN_H

+#include <netinet/in.h>

+#endif

+  ], [addrinfo], 

+     AC_DEFINE_UNQUOTED(HAVE_STRUCT_ADDRINFO,1,

+       [Define to 1 if you have struct addrinfo.])

+)

+

 dnl check for inet_pton

 AC_CHECK_FUNCS(inet_pton)

 dnl Some systems have it, but not IPv6