Provide a function to set 'hostname' field in log

test/regression/regression.cc

@@ -309,6 +309,10 @@ void perform_unit_test(ModSecurityTest<RegressionTest> *test,
         modsec_transaction->processConnection(t->clientIp.c_str(),
             t->clientPort, t->serverIp.c_str(), t->serverPort);
 
+        if (t->hostname != "") {
+            modsec_transaction->setRequestHostName(t->hostname);
+        }
+
         actions(&r, modsec_transaction, &serverLog);
 #if 0
         if (r.status != 200) {

test/regression/regression_test.cc

@@ -134,6 +134,9 @@ RegressionTest *RegressionTest::from_yajl_node(const yajl_val &node) {
                 if (strcmp(key2, "port") == 0) {
                     u->serverPort = YAJL_GET_INTEGER(val2);
                 }
+                if (strcmp(key2, "hostname") == 0) {
+                    u->hostname = YAJL_GET_STRING(val2);
+                }
             }
         }
         if (strcmp(key, "request") == 0) {

test/regression/regression_test.h

@@ -61,6 +61,7 @@ class RegressionTest {
     std::string serverIp;
     int clientPort;
     int serverPort;
+    std::string hostname;
 
     std::string method;
     std::string httpVersion;

test/test-cases/regression/fn-setHostname.json

@@ -0,0 +1,41 @@
+[
+  {
+    "enabled":1,
+    "version_min":300000,
+    "title":"Testing function :: setRequestHostName",
+    "client": {
+      "ip":"200.249.12.31"
+    },
+    "server":{
+      "ip":"200.249.12.31",
+      "port":80,
+      "hostname":"modsecurity.org"
+    },
+    "request": {
+      "headers": {
+        "Host":"www.modsecurity.org"
+      },
+      "uri":"/foo?q=attack",
+      "http_version": 1.1
+    },
+    "response":{
+      "headers":{
+        "Date":"Mon, 13 Jul 2015 20:02:41 GMT",
+        "Last-Modified":"Sun, 26 Oct 2014 22:33:37 GMT",
+        "Content-Type":"text/plain"
+      },
+      "body":[
+        "denystring"
+      ]
+    },
+    "expected":{
+      "http_code": 200,
+      "debug_log": "[hostname: \"modsecurity.org\"]"
+    },
+    "rules":[
+      "SecRuleEngine On",
+      "SecResponseBodyAccess On",
+      "SecRule ARGS_GET \"@contains attack\" \"id:1,phase:2,deny\""
+    ]
+  }
+]