Function do_open_checklinks

syscall.c:2143–2149

varient of do_open/do_open_nofollow which does do_open() if the copy_links or copy_unsafe_links options are set and does do_open_nofollow() otherwise This is used to prevent a race condition where an attacker could be switching a file between being a symlink and being a normal file The open is always done with O_RDONLY flags */

  The open is always done with O_RDONLY flags
 */
int do_open_checklinks(const char *pathname)
{
	if (copy_links || copy_unsafe_links) {
		return do_open(pathname, O_RDONLY, 0);
	}
	return do_open_nofollow(pathname, O_RDONLY);
}