Find entries in file

[pitter2206]

Hello together,

sorry for my bad English, but I will try as best I can to explain my problem...  

I want to open a file and copy some entries to write them into a txt-file on a CE5.0 device.

this is a part of the file named "feature.xml"

Code Select Expand

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE FeatureLicense SYSTEM "feature.dtd">

<FeatureLicense vendor="MEDION" appVersion="5.0" appName="GoPal Navigator" editionName="AE" master="yes" version="1.0" >

I want to write these three entries as string to the textfile

GoPal Navigator
5.0
AE

These entries would be written as "GoPal Navigator 5.0 AE" in a specified textfile wich is read out with an existing installer.

I´ve got no idea how to do that... would you please help me?

[pitter2206]

Hello again,

I tried something...
Here I´ll show the hole code after <snap, because the script doesn´t read the XML-File

Code Select Expand

#include <windows.h>
#include <windowsx.h>
#include "main.h"
#include <stdio.h>
#include <stdlib.h>
#include <tchar.h>
#include <winioctl.h>
#include <string.h>


static HANDLE ghInstance;

wchar_t variable[200];
FILE* src;

HKEY hkey;
DWORD dwValue;
DWORD dwType;
DWORD dwCount = sizeof ( DWORD );

#define MulDiv(a,b,c) (((a)*(b))/(c))

HBITMAP hbit;


HFONT BuildFont(LPCTSTR pszFontFace, int nFontSize, BOOL fBold)
{
   HDC hDC;
   int nHeight;
   LOGFONT lgf;

   hDC = GetDC(NULL);
   nHeight = -MulDiv(nFontSize, GetDeviceCaps(hDC, LOGPIXELSY), 72);
   ReleaseDC(NULL, hDC);

   memset(&lgf, 0, sizeof(lgf));

   lgf.lfHeight = nHeight;
   lgf.lfWeight = fBold ? FW_BOLD: FW_NORMAL;
   lgf.lfCharSet = DEFAULT_CHARSET;
   lgf.lfOutPrecision = OUT_DEFAULT_PRECIS;
   lgf.lfClipPrecision = CLIP_DEFAULT_PRECIS;
   lgf.lfQuality = DEFAULT_QUALITY;
   lgf.lfPitchAndFamily = DEFAULT_PITCH;

   wcscpy(lgf.lfFaceName, pszFontFace);

   return CreateFontIndirect(&lgf);
}

int PASCAL WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPWSTR lpszCmdLine, int nCmdShow)
{

// delete old hardware.txt

DeleteFile(L"\\Temp\\hardware.txt");


// create W'indow#######################################
   WNDCLASS wc;
   
   ghInstance = hInstance;

   // Get system dialog information.
   if (!GetClassInfo(NULL, L"Dialog", &wc))
       return 0;

   // Register our own dialog.
   wc.hInstance = hInstance;
   wc.hIcon = LoadIcon(hInstance, MAKEINTRESOURCE(IDR_ICO_MAIN));
 
   wc.lpszClassName = L"PCinstall";
   if (!RegisterClass(&wc))
       return 0;

hbit = LoadBitmap(hInstance, MAKEINTRESOURCE(IDR_BMP_LOGO));


HWND hWnd;

hWnd = CreateWindow(L"PCinstall",    // Window Class Name
                   L"Dialog",          // The title bar text
                   WS_VISIBLE | SS_BITMAP,       // Only need to make the window
                                     // visible in CE
                   0,                 // Don't bother with size
                   0,                 // as palm apps fill the
                   CW_USEDEFAULT,    // whole screen
                   CW_USEDEFAULT,    
                   NULL,             // No parent (Top Level)
                   NULL,             // No Menu
                   hInstance,
                   NULL);


ShowWindow (hWnd, nCmdShow);
UpdateWindow (hWnd);

HWND imgCtrl = CreateWindow( _T("STATIC"), NULL, SS_CENTERIMAGE | SS_BITMAP | WS_CHILD | WS_VISIBLE, 0, 0 , 480, 90, hWnd, NULL, NULL, NULL);
SendMessage(imgCtrl,STM_SETIMAGE, (WPARAM)IMAGE_BITMAP,(LPARAM)hbit);

HFONT hFont = BuildFont(TEXT("Tahoma"), 20, TRUE);
HWND hwnd2 = CreateWindow( _T("STATIC"), _T("HARDWAREERKENNUNG LÄUFT"), WS_CHILD | WS_VISIBLE | SS_CENTER, 10, 130 , 460, 60, hWnd, NULL, NULL, NULL);
SendMessage (hwnd2, WM_SETFONT, (WPARAM)hFont, TRUE);
HWND hwnd3 = CreateWindow( _T("STATIC"), _T("PNA NICHT AUSSCHALTEN!."), WS_CHILD | WS_VISIBLE | SS_CENTER, 10, 200 , 460, 60, hWnd, NULL, NULL, NULL);
SendMessage (hwnd3, WM_SETFONT, (WPARAM)hFont, TRUE);

UpdateWindow (hWnd);
_sleep(2);


//Sirf //Atlas ###############################################################

HANDLE hFile = CreateFile(L"\\Windows\\WisGPS200.exe\0", GENERIC_READ , FILE_SHARE_READ, NULL, OPEN_EXISTING,  FILE_ATTRIBUTE_NORMAL, NULL);

if (hFile != INVALID_HANDLE_VALUE)
{
wcscpy(variable, L"Atlas|");
}
else
{
wcscpy(variable, L"Sirf|");
}
CloseHandle(hFile);
<snip

.
.
.
.
<snap

//get software-version###############################

HANDLE hFile6 = CreateFile(TEXT("\\My Flash Disk\\navigation\\licenses\feature.xml\0"), GENERIC_READ , FILE_SHARE_READ, NULL, OPEN_EXISTING,  FILE_ATTRIBUTE_NORMAL, NULL);

if (hFile6 == INVALID_HANDLE_VALUE)
{
wcscat(variable, L"NO");
}
else
{
// open file in buffer

char *readFile(const char *filename);

//code heavily changed from http://www.cplusplus.com/reference/clibrary/cstdio/fread/
   FILE *file = fopen("\\My Flash Disk\\navigation\\licenses\feature.xml", "rb");
  if (!file) return 0;
  //get file size
  fseek(file, 0, SEEK_END);
  size_t filesize = ftell(file); //files >4GB?
   rewind(file);
  //get memory to contain the whole file
  char *buffer = (char*)malloc(filesize+1);
  if (!buffer) return 0;
  //read file
    size_t temp;
   if ((temp=fread(buffer, 1, filesize+1, file))!=filesize){
       free(buffer);
      fclose(file);
       return 0;
}
 
//look for entries in buffer

int main();
wchar_t hStr6[100];
wchar_t hStr7[100];
  if (!buffer) exit(-1); //konnte feature.xml nicht lesen!
  char *position = strstr(buffer, "appVersion=\"");
  int appVersionLength;
  char *temp1 = position+sizeof("appVersion=\"");
  for (appVersionLength=0; *temp1!='"'; temp++) appVersionLength++;
  char *appVersion = (char *)malloc(appVersionLength+1);
  strncpy(appVersion, position+sizeof "appVersion=\"", appVersionLength);
swprintf(hStr7, L"%d", appVersion);
wcscat(variable, hStr7);

int editionNameLength;
  char *temp2 = position+sizeof("editionName=\"");
  for (editionNameLength=0; *temp2!='"'; temp++) editionNameLength++;
  char *editionName = (char *)malloc(editionNameLength+1);
  strncpy(editionName, position+sizeof "editionName=\"", editionNameLength);
swprintf(hStr6, L"%d", editionName);
wcscat(variable, hStr6);
  free(appVersion);
  free(editionName);


}
CloseHandle(hFile6);

//Write vars to file####################################

src = _wfopen(L"\\Temp\\hardware.txt", L"a+");
fputws(variable, src);
fclose(src);


Sleep(3000);

return 0;
}




Please,,, could someone help me???

Greets
Pitter

[JohnF]

It's a bit of a mess.

Don't mix ASCII characters with WideChar characters.

If I were you I'd make a console app while testing. Make sure you are using the correct conversions in any sprintf type function.

Have another go.

John

[pitter2206]

Hi John,

OK, thanks for answering John, but I am still a beginner in coding in C... 


I tried something and I think I am on the right way.

I can open the file and put the hole file into the buffer with this code:

Code Select Expand

          FILE *hfile6 = fopen("\\My Flash Disk\\navigation\\licenses\\feature.xml", "rb");
if (!hfile6)
          {
             wcscat(variable, L"NO");
          }
         else
{
                        fseek(hfile6, 0, SEEK_END);              //get file size
                        size_t filesize = ftell(hfile6); //files >4GB?
                        char *buffer = (char*)malloc(filesize+1);                //get memory to contain the whole file
                        if (!buffer) wcscat(variable, L"Buffer empty|");        // write to txt if buffer is empty
                        size_t temp;
                        if ((temp=fread(buffer, 1, filesize+1, hfile6))!=filesize)
        wcscat(variable, L"YES"); // look, if buffer is written
}


These wcscat are written to the defined textfile:

Code Select Expand

    //Write to file####################################

                src = _wfopen(L"\\Temp\\hardware.txt", L"a+");
                fputws(variable, src);
                fclose(src);
    return 0;
}

The hardware.txt is so far ok:

Sirf|mfd|-|4920320|NO|storage|484737024|480|272|YES

So far the program is running, but I need some entries out of the buffer.
Just now, I tried to read the buffer, but how can I search for these entries in temp?

<FeatureLicense vendor="MEDION" appVersion="5.0" appName="GoPal Navigator" editionName="AE" master="yes" version="1.0" >

I need the followed entries 5.0 and AE because these entries are somtimes different...

Would you please help me?

thanks
Pitter

[JohnF]

You nearly had it earlier.

The following code extracts the version number and then converts the ASCII string to WideChar - for your wchar_t variable[] buffer.

Code Select Expand


#include <windows.h>
#include <stdio.h>

wchar_t variable[200];
char Str7[200];

// appVersion assumes that the version number will not be greater than 19 chars.
char appVersion[20];

int main(void)
{
char buffer[] = "<FeatureLicense vendor=\"MEDION\" appVersion=\"5.0\" appName=\"GoPal Navigator\" editionName=\"AE\" master=\"yes\" version=\"1.0\" >";

char * position = strstr(buffer, "appVersion=");

int appVersionLength = 0;

char * temp = position + sizeof("appVersion=");

for (appVersionLength = 0; *temp != '"'; temp++)
appVersionLength++;

strncpy(appVersion, position + sizeof("appVersion="), appVersionLength);

sprintf(Str7, "%s", appVersion);

// Must convert ASCII to WideChar.
MultiByteToWideChar(CP_ACP, 0, Str7, strlen(Str7), variable, 200);

// the widechar buffer variable now contains the version number.
wprintf(L"%ls\n", variable);

return 0;
}


[pitter2206]

Hi John,

thank you very much! 

It works fine, with both entries.

I wish Merry Xmas to you and your family.

Greets
Pitter

[JohnF]

Hi John,

I wish Merry Xmas to you and your family.

Greets
Pitter

And I wish the same for you and your family.

John

[pitter2206]

Ok... 

I thought, that die code will work, but it doesn´t.
It only shows what is written in the line in the script:

Code Select Expand

char buffer[] = "<FeatureLicense vendor=\"MEDION\" appVersion=\"5.0\" appName=\"GoPal Navigator\" editionName=\"AE\" master=\"yes\" version=\"1.0\" >";

That is not that, what I need... 

The file is different in case, so I need the real text written in the xml. Can you please help again?

Greets
Pitter

[JohnF]

Are you saying that the text in the file is not like this?

<FeatureLicense vendor="MEDION" appVersion="5.0" appName="GoPal Navigator" editionName="AE" master="yes" version="1.0" >

John

[pitter2206]

In some Editions ther might be another line...
As I know, there would only some differences.

Teh red-marked entries are variable:
<FeatureLicense vendor="MEDION" appVersion="5.0" appName="GoPal Navigator" editionName="AE" master="yes" version="1.0" >

It might be, that at editionName is written ME, AE or PE
and at appVersion 4.1... 4.8, or 5.1

So... to get the exactly GoPal-Version and Edition, I have to look for these Entries...

Greets
Pitter

[JohnF]

You need to deal with each possibility.

Code Select Expand


char * position;

position = strstr(buffer, "editionName=");
if(position == NULL){
position = strstr(buffer, "ME=");
if(position == NULL){
position = strstr(buffer, "AE=");
}
// etc.
}
// Still no luck, exit.
if(position == NULL){
// FAILED
return 0;
}


John

[pitter2206]

Hi John,

I think we talk about different things... It´s my fault, because to exlpain it in english is not my best...

As now, the script looks NOT for the file on \\My Flash Disk..., it looks for this line in the Script:
<FeatureLicense vendor="MEDION" appVersion="5.0" appName="GoPal Navigator" editionName="AE" master="yes" version="1.0" >
because this line is read in the buffer NOT the file on My Flash Disk.

char buffer[] = "<FeatureLicense vendor=\"MEDION\" appVersion=\"5.0\" appName=\"GoPal Navigator\" editionName=\"AE\" master=\"yes\" version=\"1.0\" >"

[JohnF]

I thought you had already loaded that text so I wrote the code as an example, that's all. It's up to you to integrate my code into yours making any
necessary changes.

John

 

[pitter2206]

ok, thanks for all,

I´ll give it a try...

Greets
Pitter