forked from Imagelibrary/rtems
ftruncate() and open() with O_TRUNC shall upon successful completion mark for update the st_ctime and st_mtime fields of the file. truncate() shall upon successful completion, if the file size is changed, mark for update the st_ctime and st_mtime fields of the file. The POSIX standard "The Open Group Base Specifications Issue 7", IEEE Std 1003.1, 2013 Edition says nothing about the behaviour of truncate() if the file size remains unchanged. Future directions of the standard may mandate the behaviour specified in ftruncate(): http://austingroupbugs.net/view.php?id=489