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5.8

Problems Updating fopen() to fopen_s() in C++

Asked by dleehanson in C++ Programming Language

Tags: fopen_s

I recently got charged with updating / modifying an existing C++ DLL. I starting updating some of the functions to their security-friendly counterparts and am running into problems.

It seems that I am having problems with my change of fopen() to fopen_s(). For some reason the files aren't closing anymore, since I can't open them in windows. I get an access violation saying another program is still accessing it.

So my question is: What all do I need to do to update to fopen_s()?

<snip>

//if( (plltCreateFile = fopen(fqnCreate,"w")) == NULL) //Old code
if( (fopen_s(&plltCreateFile, fqnCreate,"w")) == NULL)
{
      returnValue = (-1);
}
else
{
      // New stuff
      sprintf_s(fqnLine,"%sIn\\line%d.dat",Zebra.shareName,LineNumber);
      fprintf(plltCreateFile,"%s\n",PalletCreate(fqnLine,palletCode,timeBuffer));

      fclose(plltCreateFile);
      plltCreateFile = NULL;
}

I don't have a great deal of experience with C++, so any help is greatly appreciated.

--Charly

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Problems Updating fopen() to fopen_s() in C++

Asked by dleehanson in C++ Programming Language

Tags: fopen_s

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