Cosmetics: fix cppcheck warnings

src/modsecurity.cc

@@ -256,7 +256,7 @@ int ModSecurity::processContentOffset(const char *content, size_t len,
             strlen("highlight"));
 
         yajl_gen_array_open(g);
-    while (vars.size() > 0) {
+    while (vars.size() > 3) {
         std::string value;
         yajl_gen_map_open(g);
         vars.pop_back();
@@ -303,7 +303,7 @@ int ModSecurity::processContentOffset(const char *content, size_t len,
             varValue.size());
     yajl_gen_map_close(g);
 
-    while (trans.size() > 0) {
+    while (!trans.empty()) {
         modsecurity::actions::transformations::Transformation *t;
         std::string varValueRes;
         yajl_gen_map_open(g);
@@ -338,7 +338,7 @@ int ModSecurity::processContentOffset(const char *content, size_t len,
 
     yajl_gen_map_open(g);
 
-    while (ops.size() > 0) {
+    while (ops.size() > 3) {
         std::string value;
         yajl_gen_string(g, reinterpret_cast<const unsigned char*>("highlight"),
             strlen("highlight"));

src/request_body_processor/json.cc

@@ -232,7 +232,7 @@ int JSON::yajl_start_array(void *ctx) {
 
 int JSON::yajl_end_array(void *ctx) {
     JSON *tthis = reinterpret_cast<JSON *>(ctx);
-    if (tthis->m_containers.size() <= 0) {
+    if (tthis->m_containers.empty()) {
         return 1;
     }
 
@@ -266,7 +266,7 @@ int JSON::yajl_start_map(void *ctx) {
  */
 int JSON::yajl_end_map(void *ctx) {
     JSON *tthis = reinterpret_cast<JSON *>(ctx);
-    if (tthis->m_containers.size() <= 0) {
+    if (tthis->m_containers.empty()) {
         return 1;
     }
 

src/utils/geo_lookup.cc

@@ -91,11 +91,11 @@ bool GeoLookup::setDataBase(const std::string& filePath,
 #endif
         err->append(".");
 
-        if (intMax.size() > 0) {
+        if (!intMax.empty()) {
             err->append(" " + intMax);
 
         }
-        if (intGeo.size() > 0) {
+        if (!intGeo.empty()) {
             err->append(" " + intGeo);
         }
         return false;

src/variables/web_app_id.h

@@ -38,7 +38,6 @@ class WebAppId : public Variable {
     void evaluate(Transaction *transaction,
         RuleWithActions *rule,
         std::vector<const VariableValue *> *l) override {
-        const std::string name("WEBAPPID");
         const std::string rname = transaction->m_rules->m_secWebAppId.m_value;
         l->push_back(new VariableValue(&m_name, &rname));
     }