added NO_ALLOCA macro

src/server/ua_services_attribute.c

@@ -8,7 +8,11 @@
 static UA_StatusCode parse_numericrange(const UA_String str, UA_NumericRange *range) {
     if(str.length < 0 || str.length >= 1023)
         return UA_STATUSCODE_BADINTERNALERROR;
+#ifdef NO_ALLOCA
+    char cstring[str.length+1]
+#else
     char *cstring = UA_alloca(str.length+1);
+#endif
     UA_memcpy(cstring, str.data, str.length);
     cstring[str.length] = 0;
     UA_Int32 index = 0;
@@ -370,9 +374,14 @@ void Service_Read(UA_Server *server, UA_Session *session, const UA_ReadRequest *
     }
 
 #ifdef UA_EXTERNAL_NAMESPACES
+#ifdef NO_ALLOCA
+    UA_Boolean isExternal[size];
+    UA_UInt32 indices[size];
+#else
     UA_Boolean *isExternal = UA_alloca(sizeof(UA_Boolean) * size);
-    UA_memset(isExternal, UA_FALSE, sizeof(UA_Boolean) * size);
     UA_UInt32 *indices = UA_alloca(sizeof(UA_UInt32) * size);
+#endif /*NO_ALLOCA */
+    UA_memset(isExternal, UA_FALSE, sizeof(UA_Boolean) * size);
     for(size_t j = 0;j<server->externalNamespacesSize;j++) {
         size_t indexSize = 0;
         for(size_t i = 0;i < size;i++) {
@@ -592,9 +601,14 @@ void Service_Write(UA_Server *server, UA_Session *session, const UA_WriteRequest
     }
 
 #ifdef UA_EXTERNAL_NAMESPACES
+#ifdef NO_ALLOCA
+    UA_Boolean isExternal[request->nodesToWriteSize];
+    UA_UInt32 indices[request->nodesToWriteSize];
+#else
     UA_Boolean *isExternal = UA_alloca(sizeof(UA_Boolean) * request->nodesToWriteSize);
-    UA_memset(isExternal, UA_FALSE, sizeof(UA_Boolean)*request->nodesToWriteSize);
     UA_UInt32 *indices = UA_alloca(sizeof(UA_UInt32) * request->nodesToWriteSize);
+#endif /*NO_ALLOCA */
+    UA_memset(isExternal, UA_FALSE, sizeof(UA_Boolean)*request->nodesToWriteSize);
     for(size_t j = 0; j < server->externalNamespacesSize; j++) {
         UA_UInt32 indexSize = 0;
         for(UA_Int32 i = 0; i < request->nodesToWriteSize; i++) {

src/server/ua_services_discovery.c

@@ -18,7 +18,11 @@ void Service_FindServers(UA_Server *server, const UA_FindServersRequest *request
 
 void Service_GetEndpoints(UA_Server *server, const UA_GetEndpointsRequest *request, UA_GetEndpointsResponse *response) {
     /* test if the supported binary profile shall be returned */
-    UA_Boolean *relevant_endpoints = UA_alloca(sizeof(UA_Boolean)*server->endpointDescriptionsSize);
+#ifdef NO_ALLOCA
+	UA_Boolean relevant_endpoints[server->endpointDescriptionsSize];
+#else
+	UA_Boolean *relevant_endpoints = UA_alloca(sizeof(UA_Boolean)*server->endpointDescriptionsSize);
+#endif /*NO_ALLOCA */
     size_t relevant_count = 0;
     for(UA_Int32 j = 0; j < server->endpointDescriptionsSize; j++) {
         relevant_endpoints[j] = UA_FALSE;

src/server/ua_services_view.c

@@ -319,9 +319,14 @@ void Service_Browse(UA_Server *server, UA_Session *session, const UA_BrowseReque
     response->resultsSize = size;
     
 #ifdef UA_EXTERNAL_NAMESPACES
+#ifdef NO_ALLOCA
+    UA_Boolean isExternal[size];
+    UA_UInt32 indices[size];
+#else
     UA_Boolean *isExternal = UA_alloca(sizeof(UA_Boolean) * size);
-    UA_memset(isExternal, UA_FALSE, sizeof(UA_Boolean) * size);
     UA_UInt32 *indices = UA_alloca(sizeof(UA_UInt32) * size);
+#endif /*NO_ALLOCA */
+    UA_memset(isExternal, UA_FALSE, sizeof(UA_Boolean) * size);
     for(size_t j = 0; j < server->externalNamespacesSize; j++) {
         size_t indexSize = 0;
         for(size_t i = 0; i < size; i++) {
@@ -530,9 +535,14 @@ void Service_TranslateBrowsePathsToNodeIds(UA_Server *server, UA_Session *sessio
     }
 
 #ifdef UA_EXTERNAL_NAMESPACES
+#ifdef NO_ALLOCA
+    UA_Boolean isExternal[size];
+    UA_UInt32 indices[size];
+#else
     UA_Boolean *isExternal = UA_alloca(sizeof(UA_Boolean) * size);
-    UA_memset(isExternal, UA_FALSE, sizeof(UA_Boolean) * size);
     UA_UInt32 *indices = UA_alloca(sizeof(UA_UInt32) * size);
+#endif /*NO_ALLOCA */
+    UA_memset(isExternal, UA_FALSE, sizeof(UA_Boolean) * size);
     for(size_t j = 0; j < server->externalNamespacesSize; j++) {
     	size_t indexSize = 0;
     	for(size_t i = 0;i < size;i++) {