Adds support to @ipMatch operator

src/operators/ip_match.cc

@@ -15,29 +15,32 @@
 
 #include "operators/ip_match.h"
 
+#include <string.h>
 #include <string>
 
+#include "utils/msc_tree.h"
 #include "operators/operator.h"
 
 namespace ModSecurity {
 namespace operators {
 
-bool IpMatch::evaluate(Assay *assay) {
-    /**
-     * @todo Implement the operator IpMatch.
-     *       Reference: https://github.com/SpiderLabs/ModSecurity/wiki/Reference-Manual#ipmatch
-     */
 
-    return true;
+bool IpMatch::init(const char **error) {
+    std::string e("");
+    bool res = m_tree.addFromBuffer(param, &e);
+
+    if (res == false) {
+        *error = e.c_str();
+    }
+
+    return res;
 }
 
 
-IpMatch::IpMatch(std::string op, std::string param,
-    bool negation)
-    : Operator() {
-    this->op = op;
-    this->param = param;
+bool IpMatch::evaluate(Assay *assay, const std::string &input) {
+    return m_tree.contains(input);
 }
 
+
 }  // namespace operators
 }  // namespace ModSecurity