C / C++ / MFC

Hex string stream to Binary string

9-Jun-09 3:35

See here.

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RS.Ratheesh8-Jun-09 19:26

RS.Ratheesh

8-Jun-09 19:26

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

Re: Hex string stream to Binary string [modified]

CPallini8-Jun-09 21:26

CPallini

8-Jun-09 21:26

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 | :)

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

Re: Hex string stream to Binary string

RS.Ratheesh8-Jun-09 22:32

RS.Ratheesh

8-Jun-09 22:32

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.

Re: Hex string stream to Binary string

David Crow9-Jun-09 3:38

[help]detect the status of iis server

9-Jun-09 3:38

How would you do this using pencil and paper?

rahuljin8-Jun-09 18:59

8-Jun-09 18:59

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

David Crow9-Jun-09 3:39

9-Jun-09 3:39

Can you check the IIS service on that remote machine?

rahuljin9-Jun-09 8:50

9-Jun-09 8:50

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.

David Crow9-Jun-09 9:23

9-Jun-09 9:23

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:

rahuljin9-Jun-09 10:38

9-Jun-09 10:38

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.

David Crow10-Jun-09 3:43

10-Jun-09 3:43

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.

rahuljin12-Jun-09 1:46

12-Jun-09 1:46

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 />

David Crow12-Jun-09 3:06

Re: [help]detect the status of iis server [modified]

12-Jun-09 3:06

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");
}

rahuljin12-Jun-09 4:35

12-Jun-09 4:35

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

David Crow13-Jun-09 12:41

Re: [help]detect the status of iis server [modified]

13-Jun-09 12:41

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.

rahuljin13-Jun-09 20:42

Here is the event viewer file of the application

13-Jun-09 20:42

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;
}

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

David Crow14-Jun-09 10:03

14-Jun-09 10:03

So where's the problem?

rahuljin14-Jun-09 11:19

14-Jun-09 11:19

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 ?

David Crow15-Jun-09 3:57