Function sys_truncate

freebsd/kern/vfs_syscalls.c:3372–3377

};
#endif
int
sys_truncate(struct thread *td, struct truncate_args *uap)
{

	return (kern_truncate(td, uap->path, UIO_USERSPACE, uap->length));
}

int
kern_truncate(struct thread *td, const char *path, enum uio_seg pathseg,