xref: /titanic_41/usr/src/README.license-files (revision c037192b037119c9fd354732fc29b38ce097d356)
1#
2# CDDL HEADER START
3#
4# The contents of this file are subject to the terms of the
5# Common Development and Distribution License (the "License").
6# You may not use this file except in compliance with the License.
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8# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9# or http://www.opensolaris.org/os/licensing.
10# See the License for the specific language governing permissions
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12#
13# When distributing Covered Code, include this CDDL HEADER in each
14# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15# If applicable, add the following below this CDDL HEADER, with the
16# fields enclosed by brackets "[]" replaced with your own identifying
17# information: Portions Copyright [yyyy] [name of copyright owner]
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19# CDDL HEADER END
20#
21
22#
23# Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
24#
25
26OK, so you've got approval to integrate code, and you want to know how to
27properly communicate the license terms.  What do you do next?
28
290. Determine whether your code should be covered by Oracle copyright,
30   CDDL, and/or a third party license.  If only Oracle copyright and/or
31   CDDL, then skip to step 3.
32
331. Scan the source code and extract all of the third party licenses
34   into one or more separate files.
35
36   This information may be present in comments in source code, or may
37   already be provided as separate files.  For example, GPL license
38   terms are often found in files named "COPYING."
39
40   A. In general, you'll name these files "THIRDPARTYLICENSE," and
41      you'll put one in each source directory (i.e. one per library,
42      or one per command, or one per kernel module.)
43
44      EXAMPLE: usr/src/uts/common/io/pcan/THIRDPARTYLICENSE
45
46      If this file proves unmanageable, or you're adding licenses
47      that really are independent of each other, you may instead
48      create multiple "THIRDPARTYLICENSE.foo" files, where "foo"
49      obviously corresponds to the license in question.
50
51      EXAMPLE: usr/src/lib/libsmbfs/smb/THIRDPARTYLICENSE.*
52
53   B. If you planned ahead and included graceful delimiters in your
54      source code, the THIRDPARTYLICENSE files may actually be build
55      targets in your Makefiles.
56
57      EXAMPLE: usr/src/cmd/perl/Makefile
58
59      If the corresponding copyright will change dates frequently,
60      then this approach can work well, because you won't need to
61      update the license files manually.
62
63      If you do this, then your license file should be a dependency of
64      both the all and install targets, and should be removed via
65      clobber, usually by way of CLOBBERFILES.
66
672. Give each of the license files a corresponding ".descrip" file with
68   a terse explanation of the contents.  Something like "MJN DRIVER"
69   or "PORTIONS OF ARCANE FUNCTIONALITY" is sufficient.
70
71   EXAMPLE: usr/src/cmd/refer/THIRDPARTYLICENSE.descrip
72
733. Figure out which packages deliver objects that are built using the
74   new source, and add license actions to the package manifest(s).
75
76   A. It's extremely rare for a package NOT to include a Sun copyright
77      and CDDL.  If your package is one of the 99 percent that should
78      have a Sun copyright and CDDL, then your package should have license
79      actions like this:
80
81	  license lic_CDDL license=lic_CDDL
82	  license cr_Sun license=cr_Sun
83
84   B. If your package delivers ONLY header files, and has multiple different
85      copyrights or licenses, you can use
86
87          license license_in_headers license=license_in_headers
88	  license path/to/most/common/copyright/file \
89	      license=path/to/most/common/copyright/file
90	  license path/to/most/common/license/file \
91	      license=path/to/most/common/license/file
92
93   C. For your new license files, the path you use in your license
94      actions should be relative to ${CODEMGR_WS}.
95
96   D. Empty packages: if your package delivers nothing (or, more strictly
97      speaking, nothing besides directories) you should include the Sun
98      copyright but not the CDDL.
99
100   E. As with any other action that is architecture dependent, license
101      actions may be preceded by $(blah_ONLY), where "blah" corresponds
102      to $(uname -p).
103
104   If you don't add the appropriate license actions to package
105   manifests, then your license and description files will show up as
106   unreferenced in the build.
107