4.4BSD 版权
4.4BSD 和 4.4BSD-Lite 发行版本中的全部软件和文档的版权，归 The Regents of the University of California 所有。
版权所有 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994 The Regents of the University of California. 保留所有权利。
在满足下列条件的前提下，允许重新分发修改过或未经修改的，以源代码或已编译形式存在的本软件：
- 以源代码形式重新发布必须保留上述版权声明、本许可条件以及其后的免责声明。
- 以已编译形式重新发布必须在发布版本的文档和/或其它同时发布的资料中重述上述版权声明、本许可条件以及其后的免责声明。
- 所有提及或使用本软件的广告材料应显示下述告知条款：
本产品包括了加州大学伯克利分校及向其提供帮助的志愿者开发的软件。
- 除非事先签署书面同意书，加州大学伯克利分校以及其他志愿者的名字不能被用来表示对派生产品的认可或进行推广。
此软件由 THE REGENTS 及志愿者 “按现状形式”(AS-IS) 提供，在此明示不提供无论明示的或暗示的，包括但不必限于间接的关于基于某种目的的适销性、实用性的担保保证。在任何情况下， THE REGENTS 或志愿者皆不对由于使用此软件造成的，直接、间接、连带、特别、惩戒或因此而来造成的损害(包括，但不必限于获得替代品及服务，无法使用，丢失数据，损失盈利或业务中断)，无论此类损害是如何造成的，基于何种责任推断，是否属于合同范畴，严格赔偿责任或民事侵权行为(包括疏忽和其他原因)承担任何责任，即使预先被告知可能发生此类损害。
The Institute of Electrical and Electronics Engineers 以及 the American National Standards Committee X3, on Information Processing Systems 授予我们重印他们的部分文档的权力。
下述声明中， 短语“this text”指代系统中的部分文档。
Portions of this text are reprinted and reproduced in electronic form in the second BSD Networking Software Release, from IEEE Std 1003.1-1988, IEEE Standard Portable Operating System Interface for Computer Environments (POSIX), copyright C 1988 by the Institute of Electrical and Electronics Engineers, Inc. In the event of any discrepancy between these versions and the original IEEE Standard, the original IEEE Standard is the referee document.
下述声明中， 短语“This material”指代系统中的部分文档。
This material is reproduced with permission from American National Standards Committee X3, on Information Processing Systems. Computer and Business Equipment Manufacturers Association (CBEMA), 311 First St., NW, Suite 500, Washington, DC 20001-2178. The developmental work of Programming Language C was completed by the X3J11 Technical Committee.
The views and conclusions contained in the software and documentation are those of the authors and should not be interpreted as representing official policies, either expressed or implied, of the Regents of the University of California.
注意： 加州大学伯克利分校 Berkeley Software Distribution ("BSD") 源代码的版权进行了更新。 版权修正案可以在 ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change 找到， 并在下面重述：
法律主页July 22, 1999
To All Licensees, Distributors of Any Version of BSD:
As you know, certain of the Berkeley Software Distribution ("BSD") source code files require that further distributions of products containing all or portions of the software, acknowledge within their advertising materials that such products contain software developed by UC Berkeley and its contributors.
Specifically, the provision reads:
" * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors."Effective immediately, licensees and distributors are no longer required to include the acknowledgement within advertising materials. Accordingly, the foregoing paragraph of those BSD Unix files containing it is hereby deleted in its entirety.
William Hoskins
Director, Office of Technology Licensing
University of California, Berkeley