int fchmodat(int fd, const char *path, mode_t mode, int flag)
{
if (!flag) return syscall(SYS_fchmodat, fd, path, mode, flag);
int fchmodat(int fd, const char *path, mode_t mode, int flag)
{
if (!flag) return syscall(SYS_fchmodat, fd, path, mode, flag);