C and texture files

Hi.

I'm quit new in this and i'm wondering how can be the easyest way to see it some file is texture or not.

I have read man file and man magic but i realy can not understand how to use.

So i hope that someone can help me.

Tnx

Do you mean texture as in if its an image file or? Then you would need to read up on the different file-formats you want to be able to recognize and see what they contain as marker for that specific kind of filetype. For instance a BMP file will have 2 bytes at the very start filled with BM to make you recognize it as a BMP file.

Well if you are just trying to pick out image files, file will do what you need:

Code:

---

jeff@jeff-gate:~$ file ./iltb.jpg
./iltb.jpg: JPEG image data, JFIF standard 1.01, comment: "Created with GIMP\377"
jeff@jeff-gate:~$

---

Hi.

I mean, that i whant to check all kinda files and use proper one, texture type.

I try something very similar that jeffcob write.

In shell i use:

file -i something
something: application/x-executable; charset=binary


or

file -i Unsaved.txt
Unsaved.txt: text/plain; charset=us-ascii

So i want this kinda command for shell use in my C application.

So i did with example:
system("file -i Unsaved.txt") or system("file -i something") and return me result.

So i got another problem, And i'm having a new question.

If is possible when i use in my C application system("file -i Unsaved.txt"); and when return me some result i want use in my if statement only the files which are texture type like in my example for Unsaved. So if return me that is text kinda file i want this texture file rename.

But still, how can i retreave and use it in my if statement.

Otherwise i read somewhere that maybe i can do semeting with glib mime.

I hope that u understand what i write.

Tnx for help.

Not sure I am following your problem correctly so if this is wrong I am sorry but I would look into the popen command described here: popen

I use this for called command line apps and getting the results to use in an application. Still not sure what you meant by texture though -- example?