Add CurlGetErrorMessage to get a more detailed string error.

Fixed enum tool.
Added new enums.
Updated test script.

Author: bottiger1

context.cpp

@@ -10,6 +10,7 @@ CurlContext::CurlContext(CURL* c, IPluginContext* plugin) {
     handle_closed = false;
     headers = NULL;
     post = NULL;
+    curl_error_message[0] = 0;
 }
 
 CurlContext::~CurlContext() {

context.h

@@ -27,6 +27,7 @@ class CurlContext {
     int sourcepawn_userdata;
     bool in_event_thread;
     bool handle_closed; // if someone try to close the handle when it was processing, close it when it times out or completes
+    char curl_error_message[CURL_ERROR_SIZE];
 
     CurlContext(CURL* c, IPluginContext* plugin);
     ~CurlContext();

extension.cpp

@@ -212,6 +212,7 @@ void ProcessCurlJob(CurlContext* c) {
     curl_easy_setopt(c->curl, CURLOPT_HEADERDATA, (void*)c);    
     curl_easy_setopt(c->curl, CURLOPT_PRIVATE, (void*)c);
     curl_easy_setopt(c->curl, CURLOPT_NOSIGNAL, 1L);
+    curl_easy_setopt(c->curl, CURLOPT_ERRORBUFFER, c->curl_error_message);
     if(c->headers != NULL)
         curl_easy_setopt(c->curl, CURLOPT_HTTPHEADER, c->headers);
     curl_multi_add_handle(g_curl, c->curl);

natives.cpp

@@ -190,6 +190,13 @@ cell_t CurlErrorString(IPluginContext *pContext, const cell_t *params) {
     return 0;
 }
 
+cell_t CurlGetErrorMessage(IPluginContext *pContext, const cell_t *params) {
+    GET_CURL_CONTEXT_MACRO
+
+    pContext->StringToLocal(params[2], params[3], context->curl_error_message);
+    return 0;
+}
+
 cell_t CurlVersion(IPluginContext *pContext, const cell_t *params) {
     char* version = curl_version();
     pContext->StringToLocal(params[1], params[2], version);
@@ -255,5 +262,6 @@ sp_nativeinfo_t MyNatives[] = {
     {"Async_CurlVersion",                   CurlVersion},
     {"Async_CurlGetResponseHeaderSize",     CurlGetResponseHeaderSize},
     {"Async_CurlGetResponseHeader",         CurlGetResponseHeader},
+    {"Async_CurlGetErrorMessage",           CurlGetErrorMessage},
     {NULL,                      NULL},
 };