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Hi,
Interesting that you found my reply of more than 6 years ago  . I can't help you here. Try posting your question in the C# section. Also try to elaborate on the ways that you've explored so far.
Kind regards,
Bob Stanneveld
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Hello,
I want to give SSH based tunneling in my app. My app will then connect to the local port for secure communication over network.
For this I am using PLINK.exe provided at http://www.chiark.greenend.org.uk/~sgtatham/putty/download.html
Now I want to connect to my server only if PLINK is successful in making a connection to the SSH server.
To do this I am using the following code:
[CODE]
char plinkapp[] = "g:\\myapp\\debug\\plink.exe -ssh -l username -pw pwd -L 1234:127.0.0.1:1235 127.0.0.1";
STARTUPINFO si;
PROCESS_INFORMATION pi;
memset ( &si, 0, sizeof(si) );
memset ( &pi, 0, sizeof(pi) );
si.cb = sizeof( si );
si.dwFlags = STARTF_USESHOWWINDOW;
si.wShowWindow = SW_HIDE;
bool pret = CreateProcess ( NULL, plinkapp, NULL, NULL, NULL, NULL, NULL, NULL, &si, &pi );
assert ( pret );
WaitForSingleObject ( pi.hProcess, INFINITE );
/* my server code starts from here */
[/CODE]
Now the problem is that if PLINK is successful in connecting to the SSH server then it spawns up a new shell and waits there for input. So if the connection is successful the code segment is never coming out from WaitForSingleObject() code.
Now I want to execute my code only if the connection is successful otherwise return with an error? How do I find out if PLINK was successfull coz it just opens up a shell and waits there. I cant use some arbitrary millisecond to wait in WaitForSingleObject because if the network is slow then it will take more time to connect to the SSH server.
I was just hoping if there is a more elegant method? I tried piping but then the output after connection depends upon the SSH server which might be Linux or BSD or Windows based. So the output is never same.
The only thing i could figure out is that to modify PLINK source code (its opensource and there are no legal issues )? Do you suggest this method?
Thanks in advance.
Regards,
Karam
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Hi
I created a network application using VC++ and CSockets
But the application fails on windows 2003 what could be wrong. ?
Regards
The Best Relligion is Science.
Once you understand it, you will know God.
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I can't give you any specific help, just remember that Win 2003 runs very tight restrictions on almost every IO operations.
But you have to provide more info, it could be that you haven't got access to the MFC library, or that you are denied access to the library by Win 2003.
"After all it's just text at the end of the day. - Colin Davies
"For example, when a VB programmer comes to my house, they may say 'does your pool need cleaning, sir ?' " - Christian Graus
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Hi
Thank you very much.
I will return after trying out your suggestions.
Regards
The Best Relligion is Science.
Once you understand it, you will know God.
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Hi
class CUdpSocket : public CSocket
CUdpSocket m_CUdpSocket;
///////////////////////
m_CUdpSocket.Create(iport,SOCK_DGRAM,"")
this is what fails in windows 2003. Any Idea would be appreciable.
Regards
The Best Relligion is Science.
Once you understand it, you will know God.
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What could possible be wrong when CFtpConnection::GetFile(…) returns 5 (Access is denied). I know the file exists and I’ve got the right URL.
Thanks for tips
_____________________________
...and justice for all
APe
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Hello Everyone,
A question related Form design with C++ in Visual Studio .NET 2003.
Scenario
I've one Form, let's call it MyForm, with various controls on it. There's a Panel on this Form on which the user can draw and edit a polygon. Now, the mouse event methods were becoming quite large, so it seemed like a nice idea to write a custom class (MyPanel) which is a child of "System::Windows::Forms::Panel". In this class I for example redefine the "OnMouseMove", "OnMouseDown" and "OnMouseUp".
Next, I changed one line in the "InitializeComponent" method of MyForm; that is, I changed:
"this->panel1 = new System::Windows::Forms::Panel();"
into
"this->panel1 = new Guillotine::CCanvas(this);"
Results & Problem
Now, the above works fine when I compile and run the application. However, I'm in real trouble when I start using the Form Designer. The Form Designer removes all the code related to the Panel, thus clearly does not accept any adaptations to the "InitializeComponent" method of MyForm.
NOTE: The MyPanel class can not be written as a stand-alone control, and then imported through a dll, since it "talks" to various other controls on MyForm!
Question
I realize that InitializeComponent is *not* to be adapted (according to the text preceding this method). However, the above change seems very natural, and the adaptation of the "InitializeComponent" is marginal. My question is whether I can let the Form Designer know that everything is ok with MyPanel (my self defined Panel class), and that the Designer can accept this child of Panel as a Panel?
Looking forward to possible approaches to tackle this problem (or on explanations why I should definitely *not* do this  )!
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if you have solution, can you send me the source code to xiayi@ustc.edu?
please contact:
max_xiayi@hotmail.com
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Hello!
I'm currently building an application which uses a kind of "magnifying lens" to zoom into a displayed DIB. I use the mouse to move this "magnifying lens", but I think the mouse pointer is quite annoying while zooming in, so I want to make it disappear.
Does anyone know a nice and convenient way to switch the mouse pointer on and off?
Thanks a lot in advance!
Matthias
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Yes I know the code for it.
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Use LoadCursor() if you pass NULL the mouse pointer will be turned off.
To turn it back on again (standard arrow) use IDC_ARROW.
Ant.
I'm hard, yet soft.
I'm coloured, yet clear.
I'm fruity and sweet.
I'm jelly, what am I? Muse on it further, I shall return! - David Williams (Little Britain)
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You could use the ShowCursor function.
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Hi All,
I have a client application which is sometimes displaying the message "An unknown error occurred while accessing an unnamed file" before crashing.This message is being displayed very randomly and i could simulate this only once.
The scenario was like this:
1) The client and server are running in seaparate machines connected over a network.
2)Send some request commands to server and before the response is obtained,disable the network on client's side.
The message "An unknown error occurred while accessing an unnamed file" was displayed and on clicking ok the application crashed.There is no log of this crash also.Can some one tell me whether this related to CArchive and what should i do to avoid this or what protection code should i add to avoid crash.
The function CSocket::OnClose() is getting called immediately when the network is being diabled.But this function is not getting called when the above message is displayed and in such situation the application is crashing.
Thanks in advance
Regards
Raghu
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Have you tried putting try and catch around your socket code?
In doing so you may be able to get a better idea of the exception.
Ant.
I'm hard, yet soft.
I'm coloured, yet clear.
I'm fruity and sweet.
I'm jelly, what am I? Muse on it further, I shall return! - David Williams (Little Britain)
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Hi Folks!
I have a question, i have a quite normal MFC Applikation and i want to have the Functions of the Project in a DLL. Is it possible to konvert the Project into a DLL? When yes, how can i make this?
I hope somebody can help me!
Thanks,
Grettings Ronny
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It is probably better to generate a DLL and then add the function into the newly generated code.
Ant.
I'm hard, yet soft.
I'm coloured, yet clear.
I'm fruity and sweet.
I'm jelly, what am I? Muse on it further, I shall return! - David Williams (Little Britain)
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hi,
now i should get the param from the dll function,i just could gain the symbol(function name) in dll(and i can't make sure which language have been used to create the dll),but how to gain the fucntion's parameters in dll file?
thanks!
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I have a list<basic_string> which only contains 2 items.
I have found tons of examples of iterating the list, but none for only dealing with 2 items.
How do I get the string values from the first and second element?
Thanks
How do I print my voice mail?
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Hockey wrote:
I have found tons of examples of iterating the list, but none for only dealing with 2 items.
Well, you could of course iterate the list also with 2 items in it... 
Hockey wrote:
How do I get the string values from the first and second element?
std::list<std::wstring> strings;
strings.push_back(L"string 1");
strings.push_back(L"string 2");
cout << strings.at(0) << L" and " << strings.at(1); Might output string 1 and string2, if you are lucky.
--
The Blog: Bits and Pieces
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Cool i'll try it
Thanks
How do I print my voice mail?
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Didn't work for what i'm trying to do 
typedef std::list<std::basic_string<TCHAR> > string_list;
string_list m_lsFiles; // List of selected file(s)
Later on somewheres deep within my code I call:
MessageBox(0, m_lsFiles.at(0), m_lsFiles.at(1), MB_OK);
How do I print my voice mail?
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try:
MessageBox(0, m_lsFiles.front(), m_lsFiles.back(), MB_OK); A list is not a random access container, so you can not retrive elements with an index number.
"You're obviously a superstar." - Christian Graus about me - 12 Feb '03
"Obviously ??? You're definitely a superstar!!!" mYkel - 21 Jun '04
Within you lies the power for good - Use it!
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Hah! What did I think of! I've been using to std::vector too much lately. 
--
The Blog: Bits and Pieces
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I think I did try that...but i'll try again to be sure
PJ Arends wrote:
A list is not a random access container, so you can not retrive elements with an index number.
I'm a total newbie to STL, but I just realized that
Thanks again
How do I print my voice mail?
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