+Copyright (c) 1987, 1993, 1994, 1996 The Regents of the University of California. All rights reserved.
+Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
+
+the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
+
+THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
+BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+Libwebsockets and included programs are provided under the terms of the GNU
+Library General Public License (LGPL) 2.1, with the following exceptions:
+
+1) Any reference, whether in these modifications or in the GNU
+Library General Public License 2.1, to this License, these terms, the
+GNU Lesser Public License, GNU Library General Public License, LGPL, or
+any similar reference shall refer to the GNU Library General Public
+License 2.1 as modified by these paragraphs 1) through 4).
+
+2) Static linking of programs with the libwebsockets library does not
+constitute a derivative work and does not require the author to provide
+source code for the program, use the shared libwebsockets libraries, or
+link their program against a user-supplied version of libwebsockets.
+
+If you link the program to a modified version of libwebsockets, then the
+changes to libwebsockets must be provided under the terms of the LGPL in
+sections 1, 2, and 4.
+
+3) You do not have to provide a copy of the libwebsockets license with
+programs that are linked to the libwebsockets library, nor do you have to
+identify the libwebsockets license in your program or documentation as
+required by section 6 of the LGPL.
+
+However, programs must still identify their use of libwebsockets. The
+following example statement can be included in user documentation to
+satisfy this requirement:
+
+"[program] is based in part on the work of the libwebsockets project
+(https://libwebsockets.org)"
+
+4) Some sources included have their own, more liberal licenses, or options
+to get original sources with the liberal terms.
+
+Original liberal license retained
+
+ - lib/misc/sha-1.c - 3-clause BSD license retained, link to original
+ - win32port/zlib - ZLIB license (see zlib.h)
+ - lib/tls/mbedtls/wrapper - Apache 2.0 (only built if linked against mbedtls)
+
+Relicensed to libwebsocket license
+
+ - lib/misc/base64-decode.c - relicensed to LGPL2.1+SLE, link to original
+ - lib/misc/daemonize.c - relicensed from Public Domain to LGPL2.1+SLE,
+ link to original Public Domain version
+
+Public Domain (CC-zero) to simplify reuse
+
+ - test-apps/*.c
+ - test-apps/*.h
+ - minimal-examples/*
+ - lwsws/*
+
+------ end of exceptions
+
GNU LESSER GENERAL PUBLIC LICENSE
Version 2.1, February 1999
projects / platform / upstream / libwebsockets.git / blobdiff