1Libwebsockets and included programs are provided under the terms of the 2MIT license shown below, with the exception that some sources are under 3a similar permissive license like BSD, or are explicitly CC0 / public 4domain to remove any obstacles from basing differently-licensed code on 5them. 6 7Original liberal license retained: 8 9 - lib/misc/sha-1.c - 3-clause BSD license retained, link to original 10 - win32port/zlib - ZLIB license (see zlib.h) 11 - lib/tls/mbedtls/wrapper - Apache 2.0 (only built if linked against mbedtls) 12 - lib/misc/base64-decode.c - already MIT 13 14Relicensed to MIT: 15 16 - lib/misc/daemonize.c - relicensed from Public Domain to MIT, 17 link to original Public Domain version 18 - lib/plat/windows/windows-resolv.c - relicensed from "Beerware v42" to MIT 19 20Public Domain (CC-zero) to simplify reuse: 21 22 - test-apps/*.c 23 - test-apps/*.h 24 - minimal-examples/* 25 - lwsws/* 26 27Although libwebsockets is available under a permissive license, it does not 28change the reality of dealing with large lumps of external code... if your 29copy diverges it is guaranteed to contain security problems after a while 30and can be very painful to pick backports (especially since historically, 31we are very hot on cleaning and refactoring the codebase). The least 32painful and lowest risk way remains sending your changes and fixes upstream 33to us so you can easily use later releases and fixes. 34 35MIT License applied to libwebsockets: 36 37https://opensource.org/licenses/MIT 38 39 Permission is hereby granted, free of charge, to any person obtaining a copy 40 of this software and associated documentation files (the "Software"), to 41 deal in the Software without restriction, including without limitation the 42 rights to use, copy, modify, merge, publish, distribute, sublicense, and/or 43 sell copies of the Software, and to permit persons to whom the Software is 44 furnished to do so, subject to the following conditions: 45 46 The above copyright notice and this permission notice shall be included in 47 all copies or substantial portions of the Software. 48 49 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 50 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 51 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 52 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 53 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 54 FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS 55 IN THE SOFTWARE. 56 57