I'm trying get the proxy settings for my computer automatically.
I've set up a local server and I've uploaded a .pac file (which I can access from my browser) and I've set the link to it in the Internet Explorer connection settings, in the "address" field and checked "Use automatic configuration script".
My code is the following:
int main()
{
LPWSTR str = NULL;
if (!WinHttpDetectAutoProxyConfigUrl(WINHTTP_AUTO_DETECT_TYPE_DHCP | WINHTTP_AUTO_DETECT_TYPE_DNS_A, &str))
{
printf("%d\n", GetLastError());
}
if(str)
GlobalFree(str);
return 0;
}
The function always fails and GetLastError returns 12180 (ERROR_WINHTTP_AUTODETECTION_FAILED)
What am I doing wrong?
From https://developer.appcelerator.com/question/120622/errorwinhttpautodetectionfailed:
This error message is not necessarily a problem and can be ignored if you are using direct connection. you get this error if you are having direct connection. to check that and get more info, you can use the following commands:
cd windows\system32
netsh winhttp help
— answered 4 years ago by Nick G
From your comment I gather that this was indeed the reason you were getting this error, so I'm posting it as an answer.
Related
why is my code failing to run a simple executable using WinRM's C++ API?
//main.cpp
int main()
{
ShellClient *shellClient = new ShellClient();
//Set up the shell client here and connect to the localhost.
//This seems to be working fine because I'm handling every
//possible error code, and none of them are being triggered
PCWSTR commandLine = L"\"MyExampleExecutable.exe\"";
isOk = shellClient->RunCommand(commandLine);
if (!isOk)
return 1;
return 0;
}
//ShellClient.cpp
bool ShellClient::RunCommand(PCWSTR command)
{
WSMAN_SHELL_ASYNC createCommandAsync;
ZeroMemory(&createCommandAsync, sizeof(createCommandAsync));
createCommandAsync.operationContext = this;
createCommandAsync.completionFunction = (WSMAN_SHELL_COMPLETION_FUNCTION)CommandCreatedCallback;
WSManRunShellCommand(shellHandle, 0, command, NULL, NULL, &createCommandAsync, &commandHandle);
if (commandHandle == NULL)//It is *always* NULL
{
std::cout << "command handle null" << std::endl;
system("pause");
return false;
}
return true;
}
One possible clue is that my C++ code thinks the shell gets created fine, but in the Event Viewer for my machine, there is this:
WSMan operation CreateShell failed, error code 2150859250
At the time of writing, this lovely error code gives precisely zero results when put into Google, making it rather difficult to know what it means.
Background and common solutions which I have already checked
As documented here and explaned in this video by the same author, most WinRM issues boil down to either connection or authentication problems. In my case, if I deliberately enter incorrect user credentials, I get an authentication error, so I know that my program is connecting and authenticating fine when the correct username and password are supplied. Also:
From the command line, I can connect to my local machine and pretend it's a remote server, for example the following command works fine:
winrs -r:http://localhost:5985 -u:COMPUTERNAME\Jeremy "dir"
winrm quickconfig shows the service is working (which we already know otherwise the winrs command wouldn't work)
winrm get winrm/config shows TrustedHosts = localhost, AllowUnencrypted = true, and all authentication methods are set to true
Following this advice, I have set the registry key HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\LocalAccountTokenFilterPolicy = 1
Working in Windows 10
Thank you in advance!
I wasn't aware of this so can't comment on whether it's common knowledge but Microsoft have a nifty error lookup tool where you can enter an error code (after converting it from a normal number to hexadecimal) and it tells you what it means.
In this case, 2150859250 (803381F2 in hex) corresponds to:
ERROR_WINRS_IDLETIMEOUT_OUTOFBOUNDS wsmerror.h
# The WS-Management service cannot process the request. The
# requested IdleTimeout is outside the allowed range.
When setting up the WinRM shell, I was doing the following:
WSMAN_SHELL_STARTUP_INFO startupInfo;
ZeroMemory(&startupInfo, sizeof(startupInfo));
startupInfo.idleTimeoutMs = 1000;//not large enough!
startupInfo.workingDirectory = L"C:\\";
//other parameters of startupInfo set here
WSManCreateShell(session, 0, shellUri, &startupInfo, NULL, NULL, &createShellAsync, &shellHandle);
Changing idleTimeoutMs from 1000 to a much larger number like 100000 solved the error and my program now works fine.
Since the official docs for this parameter say anything between 0 and 0xFFFFFFFF are valid, it remains a mystery why a value of 1000 is throwing this error. I leave this for somebody more knowledgable than myself to answer, on the off chance that they come across this question.
I have an App with a Poco module for internet connection to support users with legacy XP and Vista OS connecting with TLS1.2. There is a connection problem that returns a Poco error code but I don't know what that means. Here is part of the logging output:
poco_connection::end_receiving_response_body entered
poco_connection::close entered
poco_session::destroy_connection entered
poco_connection::end_transaction entered (code 0x00280166, hresult 0x00000000, closing: FALSE)
--------- 043d7450 (Closing request)
poco_connection::transaction_notify entered (code 0x00280166, hresult 0x00000000): Status: 3
Poco Communication Failed: code 0x00280166, hresult 0x00000000
poco_connection::~poco_connection entered
A little research shows there is a class Poco::Error that includes a method
static std::string getMessage(
int errorCode
);
which returns a text string for errors. Unfortunately I don't have source for the Poco module and so I can't add that translation call.
Since Poco is an open source project, can anyone point me to a code location where I can look up the mapping of Poco errors? Specifically error code 0x00280166
Seems I got lucky with a bit of googling
https://github.com/pocoproject/poco/blob/develop/Foundation/src/Error.cpp
But I don't think you're in luck, the code just assumes the error code is a windows system error code. And when I google 0x00280166 this page is the only hit.
I am calling the DhcpGetClientInfo function from Windows DHCP Server Management API. Below is a segment of code where I query the DHCP server(in my case a Raspberry Pi) for a specific client's general information. The necessary header files have been included and the program builds fine with no compile time errors.
int a;
DHCP_SEARCH_INFO SearchInfo;
DHCP_CLIENT_INFO* ClientInfo;
// Search criteria
SearchInfo.SearchType = DhcpClientIpAddress;
SearchInfo.SearchInfo.ClientIpAddress = inet_addr("10.10.10.144");
a = DhcpGetClientInfo(L"10.10.10.1", &SearchInfo, &ClientInfo);
if(a != ERROR_SUCCESS){
std::ofstream outputFile("C:\\Temp\\TestX\\log4.txt");
outputFile << a;
}
However, the function fails and returns error number #1722 which does not appear in the DHCP Server Management API Error Codes here: https://msdn.microsoft.com/en-us/library/windows/desktop/aa363378(v=vs.85).aspx
I cannot find any information on said error. Has anyone any experience to help me out here. Your help would be greatly appreciated.
Error 1702: RPC_S_SERVER_UNAVAILABLE: The RPC server is unavailable.
Source: https://msdn.microsoft.com/en-us/library/windows/desktop/ms681386%28v=vs.85%29.aspx
I am using following simple code to connect to database and I am getting error as ORA-24399 which says invalid number of connections specified. I have googled enough but not clue. This is a CPP program.
Following is code Snippet:
try
{
Environment *env = Environment::createEnvironment(Environment::DEFAULT);
Connection *con= env->createConnection("test","test","testdb");
}
catch(SQLException ex)
{
cout<<ex.getMessage().c_str();
}
P.S Using SQL Plus I am able to connect to the database where this code is being run. There are no issues there. Only through program there is a failure seen.
P.P.S Tried using connectionpool as well but still no luck...
Looking at your error, it seems that the problem is somewhere else in your code: you should fix the parameters (related to connection numbers) in the call to OCIConnectionPoolCreate.
I am helping a friend with his bachelor thesis project. It is a program that calculates bending moments for various materials. One of the extra requirements that the client desires is database functionality to store and retrieve various pieces of data being used in the program.
The program is a forms application written in managed C++. I jumped on board to help with writing the database functionality. I am using MySQL Server 5.5 and the MySQL Connector/C++ to bridge the program and the database. Everything has been going pretty well and all the functionality we need works just fine, but only in debug. As soon as we put the program into release mode there is undefined behavior occurring at runtime. Below is the function that is used to open a connection to the database:
try
{
m_driver = get_driver_instance();
m_conn = m_driver->connect(m_dbHost, m_dbUser, m_dbPwd);
m_conn->setSchema(m_dbSchema);
}
catch(sql::SQLException &e)
{
int a = e.getErrorCode();
MessageBoxA(NULL, e.what(), "DB Error", MB_OK);
}
The values passed into the connect function are all std::string. In debug mode the connection is made with no issues. In release mode an exception is caught after the connect function is called, and displays the message "Unknown MySQL Server Host '####' (0)" where the #### is always some garbage text. I also notice that in the output window another exception is being thrown, this one is the type System.Runtime.InteropServices.SEHException.
I have been doing some research and have seen numerous cases of this exception on many forums (and here on stack exchange) but no one seems to be having this issue with the MySQL connector. My assumption is that the memory is being corrupted because the program is mixed mode, with the main program code being written in Managed C++ and my database helper code being in native C++ (as required by the connector).
Is there something I can change in my code to try and fix this issue to that the strings aren't being corrupted at run time. I have tried many different hacks to try and solve the problem but nothing has worked.
Thanks,
Tom
Update: I am now seeing this error in debug mode. I added code to retrieve values from the database and populate some text boxes on the form. The code is as follows:
// Populate the form with material details
String^ selectedMaterial = (String^)(comboBox1->SelectedItem);
string selectedMaterial_ = "";
MarshalString(selectedMaterial, selectedMaterial_);
sql::ResultSet* results = dbHelper.GetData("matname", selectedMaterial_);
if (results->rowsCount() == 1)
{
// Outdim
string outdim_ = "";
outdim_ = results->getString("outdim");
String^ outdim = gcnew String(outdim_.c_str());
textBox1->Text = outdim;
}
else
{
// !!!! Duplicate materials in list
}
When it tries to read outdim from the result set the SEHException is thrown, and the only other piece of information given is that it was thrown in an external component.
Update 2: I ran Application Verifier against the debug executable and then launched the program from VS2010. However the form window never loads so somewhere along the line the program must be getting halted. Strangely there is absolutely no information in the log files in Application Verifier. I also tried with the release version and I didnt get any useful information from that either.