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See here.

"Old age is like a bank account. You withdraw later in life what you have deposited along the way." - Unknown

"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons

Hi,

I need C or C++ code to convert the hex string to the binary string please can any one help me.

Eg Hex Data:
C1 E1 08 0F B6 C0 0B C8 8D 45 F4 50 89 4D F8 FF 15 48 70 40 00 83 45 F0 04 89 45 14 50 8D 45 E4 50 FF 75 0C FF 15 4C 72 40 00 FF 75 14 FF D3 83 45 E8 04 39 7D E8 0F 8C 77 FF FF FF 83 7E 58 FF 74 65 FF 76 34 FF 15 4C 70 40 00 85 C0 89 45 14 74 55 8B 7D 0C 6A 01 57 C7 45 E4 10 00 00 00 C7 45 E8 08 00 00 00 FF 15 50 70 40 00 FF 76 58 57 FF 15 54 70 40 00 FF 75 14 8B 35 58 70 40 00 57 FF D6 89 45 0C 8D 45 E4 68 20 08 00 00 50 6A FF 68 40 3F 42 00 57 FF 15 50 72 40 00 FF 75

To Binary Data:
Vÿq@ ‹ø;ûteÿuWÿq@ ‹ð;ót=9]ä‰]ütÿuäèéóÿÿÿÖ…Àt1ÇEü
ë(h @ h°@ h PB h ÿuøÿÖƒÄë
ÿuj÷èÊ, 9]èuWÿq@ ëjöëjçè™óÿÿSÿq@ é jðèó jß‰EÐèé

Since your string is well formatted, it's pretty simple, for instance

char szHex[] = "C1 E1 08 0F B6 C0 0B";
const unsigned int SIZE = sizeof(szHex)/sizeof(szHex[0]) / 3;
unsigned char pBinary[SIZE];
for (int i=0; i<SIZE; i++)
{
  if ( sscanf(szHex + 3 * i, "%2X", pBinary+i) != 1) break;
}

However, I see the result you're expecting is quite different. How can, for instance, you map 0xC1 to 'V'?
Smile | :)

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.

This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke

[My articles]

modified on Tuesday, June 9, 2009 3:32 AM

No i pasted just for a sample output that i need, its not the correct output i copied a part from the output,
Thanks for your post.

How would you do this using pencil and paper?

"Old age is like a bank account. You withdraw later in life what you have deposited along the way." - Unknown

"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons

hello,

i want to write a program in vc++ 2008 using win32 c which run on client and check the status of iis server. the status means ---- server is down or not, sql is working or not and iis is working or stopped.

please guide me

thanks

rahul

Can you check the IIS service on that remote machine?

"Old age is like a bank account. You withdraw later in life what you have deposited along the way." - Unknown

"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons

i dont know. i want to this project but i dont know much about it. i come to know that socket programming will be used for this project.

actually i am totally new to windows programming but i have to summit this project soon or i will in big trouble. i am trying my best to learn it but time is less, work is more. i will learn windows programming in detail after this project because then i will have more time.

rahuljin wrote:
i will learn windows programming in detail after this project because then i will have more time.

Famous last words. Roll eyes | :rolleyes:

"Old age is like a bank account. You withdraw later in life what you have deposited along the way." - Unknown

"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons

really, i know basic of c, c++, java, html\xhtml, vb, etc. this is the frist time i am doing the advance level programming. i want to learn asp .net but not know.

rahuljin wrote:
this is the frist time i am doing the advance level programming.

It's not really an advanced topic as much as it is a specialized topic. See here for an idea.

"Old age is like a bank account. You withdraw later in life what you have deposited along the way." - Unknown

"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons

thanks for the link. i have tried to write some code but it is not working. can u find the mistake i am making ? i want to find the status of the service "W3SVC", and when it is running, the program should print "Found" ----

<br />
<br />
#ifndef UNICODE<br />
#define UNICODE<br />
#endif<br />
<br />
#include <stdio.h><br />
#include <assert.h><br />
#include <windows.h><br />
#include <lm.h><br />
#include <tchar.h><br />
#include <wchar.h><br />
<br />
int wmain(int argc, wchar_t * argv[])<br />
{<br />
    LPSERVER_INFO_101 pBuf = NULL;<br />
    LPSERVER_INFO_101 pTmpBuf;<br />
    DWORD dwLevel = 101;<br />
    DWORD dwPrefMaxLen = MAX_PREFERRED_LENGTH;<br />
    DWORD dwEntriesRead = 0;<br />
    DWORD dwTotalEntries = 0;<br />
    DWORD dwTotalCount = 0;<br />
    DWORD dwServerType = SV_TYPE_SERVER;        // all servers<br />
    DWORD dwResumeHandle = 0;<br />
    NET_API_STATUS nStatus;<br />
    LPTSTR pszServerName = NULL;<br />
    LPTSTR pszDomainName = NULL;<br />
    DWORD i;<br />
<br />
    if (argc > 2) <br />
	{<br />
        fwprintf(stderr, L"Usage: %s [DomainName]\n", argv[0]);<br />
        exit(1);<br />
    }<br />
    // The request is not for the primary domain.<br />
    //<br />
    if (argc == 2)<br />
        pszDomainName = argv[1];<br />
    //<br />
    // Call the NetServerEnum function to retrieve information<br />
    //  for all servers, specifying information level 101.<br />
    //<br />
    nStatus = NetServerEnum((LPCWSTR) pszServerName,<br />
                            dwLevel,<br />
                            (LPBYTE *) & pBuf,<br />
                            dwPrefMaxLen,<br />
                            &dwEntriesRead,<br />
                            &dwTotalEntries,<br />
                            dwServerType, <br />
                            (LPCWSTR) pszDomainName, <br />
                            &dwResumeHandle);<br />
    //<br />
    // If the call succeeds,<br />
    //<br />
    if ((nStatus == NERR_Success) || (nStatus == ERROR_MORE_DATA)) {<br />
        if ((pTmpBuf = pBuf) != NULL) {<br />
            //<br />
            // Loop through the entries and <br />
            //  print the data for all server types.<br />
            //<br />
            for (i = 0; i < dwEntriesRead; i++) {<br />
                assert(pTmpBuf != NULL);<br />
<br />
                if (pTmpBuf == NULL) {<br />
                    fprintf(stderr, "An access violation has occurred\n");<br />
                    break;<br />
                }<br />
<br />
                printf("\tPlatform: %d\n", pTmpBuf->sv101_platform_id);<br />
                wprintf(L"\tName:     %s\n", pTmpBuf->sv101_name);<br />
                printf("\tVersion:  %d.%d\n",<br />
                       pTmpBuf->sv101_version_major,<br />
                       pTmpBuf->sv101_version_minor);<br />
                printf("\tType:     %d", pTmpBuf->sv101_type);<br />
                //<br />
                // Check to see if the server is a domain controller;<br />
                //  if so, identify it as a PDC or a BDC.<br />
                //<br />
                if (pTmpBuf->sv101_type & SV_TYPE_DOMAIN_CTRL)<br />
                    wprintf(L" (PDC)");<br />
                else if (pTmpBuf->sv101_type & SV_TYPE_DOMAIN_BAKCTRL)<br />
                    wprintf(L" (BDC)");<br />
<br />
                printf("\n");<br />
                SC_HANDLE hSCM = OpenSCManager((LPCTSTR) pTmpBuf->sv101_name, NULL, SC_MANAGER_CONNECT);<br />
<br />
                if (hSCM != NULL)<br />
                {<br />
                    SC_HANDLE hService = OpenService(hSCM, _T("W3SVC"), SERVICE_QUERY_STATUS);<br />
                    if (hService != NULL)<br />
                    {<br />
                      SERVICE_STATUS ss;<br />
                      if ((QueryServiceStatus(hService, &ss) == SERVICE_RUNNING)||(QueryServiceStatus(hService, &ss) == SERVICE_START_PENDING))<br />
                             printf("Found");<br />
<br />
                 CloseServiceHandle(hService);<br />
                }<br />
               CloseServiceHandle(hSCM);<br />
            }<br />
<br />
                // Also print the comment associated with the server.<br />
                //<br />
                wprintf(L"\tComment:  %s\n\n", pTmpBuf->sv101_comment);<br />
<br />
                pTmpBuf++;<br />
                dwTotalCount++;<br />
            }<br />
            // Display a warning if all available entries were<br />
            //  not enumerated, print the number actually <br />
            //  enumerated, and the total number available.<br />
<br />
            if (nStatus == ERROR_MORE_DATA) {<br />
                fprintf(stderr, "\nMore entries available!!!\n");<br />
                fprintf(stderr, "Total entries: %d", dwTotalEntries);<br />
            }<br />
<br />
            printf("\nEntries enumerated: %d\n", dwTotalCount);<br />
<br />
        } else {<br />
            printf("No servers were found\n");<br />
            printf("The buffer (bufptr) returned was NULL\n");<br />
            printf("  entriesread: %d\n", dwEntriesRead);<br />
            printf("  totalentries: %d\n", dwEntriesRead);<br />
        }<br />
<br />
    } else<br />
        fprintf(stderr, "NetServerEnum failed with error: %d\n", nStatus);<br />
    //<br />
    // Free the allocated buffer.<br />
    //<br />
    if (pBuf != NULL)<br />
        NetApiBufferFree(pBuf);<br />
<br />
    return 0;<br />
}<br />
<br />
<br />

rahuljin wrote:
if ((QueryServiceStatus(hService, &ss) == SERVICE_RUNNING)||(QueryServiceStatus(hService, &ss) == SERVICE_START_PENDING))
printf("Found");

Should be:

if (QueryServiceStatus(hService, &ss) != FALSE)
{
  if (ss.dwCurrentState == SERVICE_RUNNING || ss.dwCurrentState == SERVICE_START_PENDING)
    printf("Found");
}

"Old age is like a bank account. You withdraw later in life what you have deposited along the way." - Unknown

"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons

thanks, it is working now. i will bother u soon if i stuck in something.
one more thing i want to ask. currently i have only one computer so no network. will this program work on a network of computers too ? i cant check myself.

suppose i run it on a client, will it give the info of server or all the computers in the network (clients + servers) ?
also, if i have the ip address of the server then how to use it in this program ?

thanks again Thumbs Up | :thumbsup:

rahul

update :

when i make a try to make a array of processes like this -------

wchar_t selPro[] = { _T("W3SVC"), _T("Iisadmin")};

SC_HANDLE hService = OpenService(hSCM, selPro[j], SERVICE_QUERY_STATUS);

where j is for "for" lool (0,1). when i compile this code, compiling completes without any error and when i try to run it, it crashes. if i pass without array, it works fine.

please guide me

modified on Saturday, June 13, 2009 5:05 PM

rahuljin wrote:
will this program work on a network of computers too ?

That's what NetServerEnum() is for.

rahuljin wrote:
suppose i run it on a client, will it give the info of server or all the computers in the network (clients + servers) ?

First, did you try it? Second, did you check MSDN to see how OpenSCManager() handles its first argument?

rahuljin wrote:
also, if i have the ip address of the server then how to use it in this program ?

Convert the IP address to the host name using gethostbyaddr().

rahuljin wrote:
...it crashes.

Meaning what? A "crash" is fairly meaningless.

"Old age is like a bank account. You withdraw later in life what you have deposited along the way." - Unknown

"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons

here is error from windows. it says "new01" has stopped working

Problem signature:
  Problem Event Name:	APPCRASH
  Application Name:	new01.exe
  Application Version:	0.0.0.0
  Application Timestamp:	4a349ab0
  Fault Module Name:	RPCRT4.dll
  Fault Module Version:	6.1.7100.0
  Fault Module Timestamp:	49eea681
  Exception Code:	c0000005
  Exception Offset:	0002f3b0
  OS Version:	6.1.7100.2.0.0.256.1
  Locale ID:	16393
  Additional Information 1:	0a9e
  Additional Information 2:	0a9e372d3b4ad19135b953a78882e789
  Additional Information 3:	0a9e
  Additional Information 4:	0a9e372d3b4ad19135b953a78882e789

Read our privacy statement online:
  http://go.microsoft.com/fwlink/?linkid=104288&clcid=0x0409

If the online privacy statement is not available, please read our privacy statement offline:
  C:\Windows\system32\en-US\erofflps.txt

here is the complete code of the program ----

// setting unicode

#ifndef UNICODE
#define UNICODE
#endif

// header files
#include <stdio.h>
#include <assert.h>
#include <windows.h>
#include <lm.h>
#include <tchar.h>
#include <wchar.h>



void printServer(LPSERVER_INFO_101 ppTmpBuf, DWORD ddwEntriesRead)
{
    SC_HANDLE hSCM;
    SERVICE_STATUS ss;
    DWORD i;
    short int j, x;
    x = 2;
    wchar_t* prName[] = { 
                        
                        _T("W3SVC"), 
                        _T("Themes")
                        
                        };

    for (i = 0; i < ddwEntriesRead; i++) 
    {
        for(j=0; j<x ; j++)
        {
            hSCM = OpenSCManager((LPCTSTR) ppTmpBuf->sv101_name,
                NULL, SC_MANAGER_CONNECT);
            if (hSCM != NULL)
            {
                SC_HANDLE hService = OpenService(hSCM, prName[j], SERVICE_QUERY_STATUS);
                if (hService != NULL)
                {                   
                    if (QueryServiceStatus(hService, &ss) != FALSE)
                    {
                        if ((ss.dwCurrentState == SERVICE_RUNNING)||(ss.dwCurrentState == SERVICE_START_PENDING))
                            wprintf(_T("%-20s %-15s This service is running.\n"),ppTmpBuf->sv101_name, prName[j]);
                        else 
                            wprintf(_T("%-20s %-15s This service is stopped or not found.\n"),ppTmpBuf->sv101_name, prName[j]); 
                    }
                    CloseServiceHandle(hService);
                }              
            }
             CloseServiceHandle(hSCM);
        }
        ppTmpBuf++;
    }
    NetApiBufferFree(ppTmpBuf);
}





void debugeFunct(NET_API_STATUS nState, LPSERVER_INFO_101 pTmpBuf, 
                 DWORD dwEntriesRead, DWORD dwTotalEntries)
{
    NET_API_STATUS nas ;
    NET_DISPLAY_MACHINE * pndm;
    DWORD dwNdmCount;
    
    switch(nState)
    {
    case NERR_Success:
    case ERROR_MORE_DATA:
        {
            if(pTmpBuf == NULL)
            {
                fprintf(stderr, "An access voilation has occurred.\n");
            }

            else
            {
                nas = NetQueryDisplayInformation (pTmpBuf->sv101_name,
                                                       2,
                                                       0,
                                                       1,
                                                       sizeof(NET_DISPLAY_MACHINE),
                                                       &dwNdmCount,
                                                       (PVOID*)&pndm);
                switch (nas)
                {                    
                case NERR_Success:
                case ERROR_MORE_DATA:
                    printServer(pTmpBuf, dwEntriesRead);
                    break;
                
                default:
                    {
                       printf("NQDI gave error %u\n", nas);
                       break;
                     }
                }
            }
        }
        break;

    default:
        printf("No pc were found. The buffer returned was NULL\n");
        break;


    }
    NetApiBufferFree(pTmpBuf);
}


void findServ(DWORD dwPrefMaxLen, DWORD dwServerType)
{
    LPSERVER_INFO_101 pBuf = NULL;
    DWORD dwLevel = 101;
    DWORD dwEntriesRead = 0;
    DWORD dwTotalEntries = 0;
    DWORD dwTotalCount = 0;
    DWORD dwResumeHandle = 0;
    NET_API_STATUS nStatus;
    LPTSTR pszServerName = NULL;
    LPTSTR pszDomainName = NULL;
 

 
    nStatus = NetServerEnum(
                            (LPCWSTR) pszServerName,
                            dwLevel,
                            (LPBYTE *) & pBuf,
                            dwPrefMaxLen,
                            &dwEntriesRead,
                            &dwTotalEntries,
                            dwServerType, 
                            (LPCWSTR) pszDomainName, 
                            &dwResumeHandle
                            );
    
    
    debugeFunct(nStatus, pBuf, dwEntriesRead, dwTotalEntries);
    NetApiBufferFree(pBuf);

}

     
  
int _tmain(int argc, wchar_t * argv[])
{
    DWORD dPrefMaxLen = MAX_PREFERRED_LENGTH;
    DWORD dServerType = SV_TYPE_SERVER;
    printf("Machine              Service         Status\n");
    while(1)
    {
    findServ(dPrefMaxLen, dServerType);
    Sleep(3000);
    }
    return 0;
}

Here is the event viewer file of the application

modified on Sunday, June 14, 2009 10:33 AM

So where's the problem?

"Old age is like a bank account. You withdraw later in life what you have deposited along the way." - Unknown

"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons

when i remove the following statements from the program, program run without any error.

NetApiBufferFree(ppTmpBuf);
NetApiBufferFree(pTmpBuf);

what may be the problem with this ?

rahuljin wrote:
what may be the problem with this ?

It appears you are freeing the same memory three times.

"Old age is like a bank account. You withdraw later in life what you have deposited along the way." - Unknown

"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons

yes, that may be the reason for the program crash.

is there a way to access from a client if it have minimum access ? i mean that the client can access only a few folder in the other pc.

also when i try this program on xp OS system, it gives the error ---

NetQueryDisplayInformation gave error ERROR_ACCESS_DENIED.

Due to this error, it does not display the status of service even of the system it is running on. it is a client pc.
though i can ping the ip of other computers in the network.

is there any remedy for this ?

modified on Tuesday, June 16, 2009 3:50 AM

from the Win32 console functions built CreateDialog,use
only dos.h, conio.h, stdio.h.I using VC6
by tuan1111.Vietnam

Rephrase your query.

Are you some kind of troll ? Do you really think that somebody will be able to answer any of your questions ?

Cédric Moonen
Software developer

Charting control [v2.0]
OpenGL game tutorial in C++

The random word generator you have used for this and your previous posts is working perfectly.

If you have developed it yourself you should really post an article about it!

Hello,

I have an ActiveX control that provides such method:

void GetCurrentImage(long theFormat, VARIANT * theBuffer, long * theBufferSize)；

I want to get a byte image buffer from this function. That is, I am trying to do this:

long image_size;
VARIANT FrameBuf[1024*1024];
char ByteBuf[1024*1024];

// Get a pointer pCtrl to the ActiveX Control
pCtrl->GetCurrentImage(0, FrameBuf, &image_size);
// How to convert FrameBuf to ByteBuf?

I did some googling. But partly because VARIANT is a common word that confused Google, I can hardly find any useful solution to this. Can anyone give me some advice? Thank you very much.

Jason