Show more useful error on login failure

nel/include/nel/web/http_client_curl.h

@@ -63,6 +63,8 @@ public:
 	/// Disconnect if connected (otherwise does nothing)
 	void disconnect();
 
+	const char *lastError() { return &m_ErrorBuf[0]; }
+
 protected:
 
 	/// Helper
@@ -78,6 +80,8 @@ private:
 
 	std::vector<uint8>	_ReceiveBuffer;
 	std::string			_Auth; // must be kept here because curl only stores the char pointer
+
+	std::vector<char> m_ErrorBuf;
 };
 
 extern CCurlHttpClient CurlHttpClient;

nel/src/web/http_client_curl.cpp

@@ -124,15 +124,17 @@ bool CCurlHttpClient::sendRequest(const std::string& methodWB, const std::string
 	curl_easy_setopt(_Curl, CURLOPT_WRITEFUNCTION, CCurlHttpClient::writeDataFromCurl);
 	curl_easy_setopt(_Curl, CURLOPT_WRITEDATA, this);
 
-	char errorbuf [CURL_ERROR_SIZE+1];
-	curl_easy_setopt(_Curl, CURLOPT_ERRORBUFFER, errorbuf);
+	if (!m_ErrorBuf.size())
+		m_ErrorBuf.resize(CURL_ERROR_SIZE + 1);
+	m_ErrorBuf[0] = '\0';
+	curl_easy_setopt(_Curl, CURLOPT_ERRORBUFFER, &m_ErrorBuf[0]);
 
 	// Send
 	CURLcode res = curl_easy_perform(_Curl);
 	if (res != 0)
 	{
 		if (verbose)
-			nlwarning(errorbuf);
+			nlwarning(&m_ErrorBuf[0]);
 		return false;
 	}
 

ryzom/client/src/login.cpp

@@ -2832,7 +2832,7 @@ string checkLogin(const string &login, const string &password, const string &cli
 	{
 		// ask server for salt
 		if(!HttpClient.sendGet(url + "?cmd=ask&cp=2&login=" + login + "&lg=" + ClientCfg.LanguageCode, "", pPM->isVerboseLog()))
-			return "Can't send (error code 60)";
+			return std::string("Can't send (error code 60) ") + HttpClient.lastError();
 
 		if(pPM->isVerboseLog()) nlinfo("Sent request for password salt");