Function sys_chdir

freebsd/kern/vfs_syscalls.c:931–936

};
#endif
int
sys_chdir(struct thread *td, struct chdir_args *uap)
{

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

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