fopen with directories makes fseek throw

[mhenschel]

I created an embedded in memory backing store containing a directory with some files in it. In my C++ code I accidentally tried to fopen the directory instead of a file. The fopen works but when I try to seek to the end of the opened file (to get the file size by calling ftell) there is a null reference exception in
"PlayerKernel.lseekImpl"

For example:

1. This is the directory structure
   /directory/file.txt
2. This is the code that leads to the bug
   FILE* file=fopen("directory");
   if (file) {
   fseek(File, 0, SEEK_END);
   }

I think opening a directory might be undefined behavior in C++ but throwing exceptions into native C code in an fseek call is a problem. IMHO a reasonable thing to do would be to let the fopen call just fail for directories.

[JoeDupuis]

Adobe doesn seem to maintains the project anymore has they state in their last commit :

"Sadly this project is no longer being actively maintained by Adobe, if you want to contribute to improving crossbridge you might want to help out on a more active fork like the one here: https://github.com/vpmedia/crossbridge/"

You could post a feature request on this repo which is still maintained by the community : https://github.com/crossbridge-community/crossbridge

but it might never be worked on if it is undefined in the C standard.

[JoeDupuis]

Oh I see you already posted