1 files changed, 72 insertions, 0 deletions
diff --git a/src/core/provider/MCMXRecordResolverOperation.cpp b/src/core/provider/MCMXRecordResolverOperation.cpp
new file mode 100644
index 00000000..6f8226cd
--- /dev/null
+++ b/src/core/provider/MCMXRecordResolverOperation.cpp
@@ -0,0 +1,72 @@
+//
+//  MCFetchAsyncMXRecord.cpp
+//  mailcore2
+//
+//  Created by Christopher Hockley on 29/01/15.
+//  Copyright (c) 2015 MailCore. All rights reserved.
+//
+
+#include "MCMXRecordResolverOperation.h"
+
+#include <arpa/inet.h>
+#include <resolv.h>
+
+using namespace mailcore;
+
+MXRecordResolverOperation::MXRecordResolverOperation()
+{
+    mHostname = NULL;
+    mMXRecords = NULL;
+}
+
+MXRecordResolverOperation::~MXRecordResolverOperation()
+{
+     MC_SAFE_RELEASE(mMXRecords);
+}
+
+void MXRecordResolverOperation::setHostname(String * hostname)
+{
+    MC_SAFE_REPLACE_COPY(String, mHostname, hostname);
+}
+
+String * MXRecordResolverOperation::hostname()
+{
+    return mHostname;
+}
+
+Array * MXRecordResolverOperation::mxRecords()
+{
+    return mMXRecords;
+}
+
+void MXRecordResolverOperation::main()
+{
+    mMXRecords = new Array();
+    unsigned char response[NS_PACKETSZ];
+    ns_msg handle;
+    ns_rr rr;
+    int len;
+    char dispbuf[4096];
+    
+    if (((len = res_search(MCUTF8(mHostname), ns_c_in, ns_t_mx, response, sizeof(response))) >= 0) and
+        (ns_initparse(response, len, &handle) >= 0) and
+        (ns_msg_count(handle, ns_s_an) >= 0)) {
+    
+        
+        
+        for (int ns_index = 0; ns_index < len; ns_index++) {
+            if (ns_parserr(&handle, ns_s_an, ns_index, &rr)) {
+                /* WARN: ns_parserr failed */
+                continue;
+            }
+            ns_sprintrr (&handle, &rr, NULL, NULL, dispbuf, sizeof (dispbuf));
+            if (ns_rr_class(rr) == ns_c_in and ns_rr_type(rr) == ns_t_mx) {
+                char mxname[4096];
+                dn_expand(ns_msg_base(handle), ns_msg_base(handle) + ns_msg_size(handle), ns_rr_rdata(rr) + NS_INT16SZ, mxname, sizeof(mxname));
+                String * str = String::stringWithUTF8Characters(mxname);
+                mMXRecords->addObject(str);
+            }
+        }
+    }
+}
+