Well my English isn't too good so I'm not sure if I can explain this properly, hope you'll understand.
What I want is to read a certain adress of an opened file's hexadecimal code (in order to read its signature and detect the file type)...now is there any way to do this and how?
Thanks in advance
Use fopen() to open the file in binary mode ("rb")
Use fseek() to goto the offset in the file which interests you
Use fread() to read as many bytes of the signature you want to
Use memcmp() to compare that signature with what you expect to find.
If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
If at first you don't succeed, try writing your phone number on the exam paper.
