On 12/21/11 16:49, Kusanagi Kouichi wrote:
+ if (bufsize / size< count) + { + _invalid_parameter(NULL, NULL, NULL, 0, 0); + fseek(fp, bufsize, SEEK_CUR); It's not correct to make a seek here. The file position changes you're observing is related to data being read to FILE buffer.
This is also not working in case of small file. invalid_parameter handler should only be invoked if data is to big to fit into the buffer.
+ /* fread_s raises an exeption if a file was opened by fopen */ Probably you did something wrong here. It's allowed to use fread_s and fopen (unless there was a broken version of msvcrt90). + /* fclose raises an exception if a file was opened by fopen_s */ This doesn't seem right as well.
+ ret = p__fclose_nolock(file); It should be easy to add a proper implementation of _fclose_nolock.
Piotr