osd

基于网络编程的例子

The Open Source Definition

(Version 1.7)

Open source doesn't just mean access to the source code. The
distribution terms of open-source software must comply with the
following criteria:

1. Free Redistribution

The license may not restrict any party from selling or giving away
the software as a component of an aggregate software distribution
containing programs from several different sources. The license may
not require a royalty or other fee for such sale. 

2. Source Code

The program must include source code, and must allow distribution in
source code as well as compiled form. Where some form of a product
is not distributed with source code, there must be a well-publicized
means of obtaining the source code for no more than a reasonable
reproduction cost -- preferably, downloading via the Internet
without charge. The source code must be the preferred form in which
a programmer would modify the program. Deliberately obfuscated
source code is not allowed. Intermediate forms such as the output of
a preprocessor or translator are not allowed. 

3. Derived Works

The license must allow modifications and derived works, and must
allow them to be distributed under the same terms as the license of
the original software. 

4. Integrity of The Author's Source Code.

The license may restrict source-code from being distributed in
modified form only if the license allows the distribution of "patch
files" with the source code for the purpose of modifying the program
at build time. The license must explicitly permit distribution of
software built from modified source code. The license may require
derived works to carry a different name or version number from the
original software. 

5. No Discrimination Against Persons or Groups.

The license must not discriminate against any person or group of
persons. 

6. No Discrimination Against Fields of Endeavor.

The license must not restrict anyone from making use of the program
in a specific field of endeavor. For example, it may not restrict
the program from being used in a business, or from being used for
genetic research. 

7. Distribution of License.

The rights attached to the program must apply to all to whom the
program is redistributed without the need for execution of an
additional license by those parties. 

8. License Must Not Be Specific to a Product.

The rights attached to the program must not depend on the program's
being part of a particular software distribution. If the program is
extracted from that distribution and used or distributed within the
terms of the program's license, all parties to whom the program is
redistributed should have the same rights as those that are granted
in conjunction with the original software distribution. 

9. License Must Not Contaminate Other Software.

The license must not place restrictions on other software that is
distributed along with the licensed software. For example, the
license must not insist that all other programs distributed on the
same medium must be open-source software.