.appveyor.yml

+version: 1.0.{build}
+
+clone_depth: 50
+
+# Appveyor images are named after the Visual Studio version they contain.
+# But we compile using MinGW, not Visual Studio.
+# We use these images because they have different Windows versions.
+image:
+  # Windows Server 2019
+  - Visual Studio 2019
+
+environment:
+  compiler: mingw
+
+  matrix:
+  - target: i686-w64-mingw32
+    compiler_path: mingw32
+    mingw_prefix: mingw-w64-i686
+    hardening: --enable-all-bugs-are-fatal
+  - target: x86_64-w64-mingw32
+    compiler_path: mingw64
+    mingw_prefix: mingw-w64-x86_64
+    # hardening doesn't work with mingw-w64-x86_64-gcc, because it's gcc 8
+    hardening: --disable-gcc-hardening
+
+matrix:
+  # Don't keep building failing jobs
+  fast_finish: true
+  # Skip the 32-bit Windows Server 2019 job, and the 64-bit Windows Server
+  # 2012 R2 job, to speed up the build.
+  # The environment variables must be listed without the 'environment' tag.
+  exclude:
+    - image: Visual Studio 2019
+      target: i686-w64-mingw32
+      compiler_path: mingw32
+      mingw_prefix: mingw-w64-i686
+      hardening: --enable-all-bugs-are-fatal
+
+install:
+- ps: >-
+    Function Execute-Command ($commandPath)
+    {
+        & $commandPath $args 2>&1
+        if ( $LastExitCode -ne 0 ) {
+            $host.SetShouldExit( $LastExitCode )
+        }
+    }
+    Function Execute-Bash ()
+    {
+        Execute-Command 'c:\msys64\usr\bin\bash' '-e' '-c' $args
+    }
+    <# mingw packages start with ${env:mingw_prefix}
+     # unprefixed packages are from MSYS2, which is like Cygwin. Avoid them.
+     #
+     # Use pacman --debug to show package downloads and install locations
+     #
+     # All installed library dlls must be copied to the test and app
+     # directories, before running tor's tests. (See below.)
+     #>
+    Execute-Command "C:\msys64\usr\bin\pacman" -Syu --verbose --noconfirm pacman ;
+- ps: >-
+    Execute-Command "C:\msys64\usr\bin\pacman" -Sy --verbose --needed --noconfirm ${env:mingw_prefix}-libevent ${env:mingw_prefix}-openssl ${env:mingw_prefix}-pkg-config ${env:mingw_prefix}-xz ${env:mingw_prefix}-zstd ;
+
+build_script:
+- ps: >-
+    if ($env:compiler -eq "mingw") {
+            <# use the MSYS2 compiler and user binaries to build and install #>
+            $oldpath = ${env:Path} -split ';'
+            $buildpath = @("C:\msys64\${env:compiler_path}\bin", "C:\msys64\usr\bin") + $oldpath
+            $env:Path = @($buildpath) -join ';'
+            $env:build = @("${env:APPVEYOR_BUILD_FOLDER}", $env:target) -join '\'
+            Set-Location "${env:APPVEYOR_BUILD_FOLDER}"
+            Execute-Bash 'autoreconf -i'
+            mkdir "${env:build}"
+            Set-Location "${env:build}"
+            Execute-Bash "which ${env:target}-gcc"
+            Execute-Bash "${env:target}-gcc --version"
+            <# compile for mingw
+             # mingw zstd doesn't come with a pkg-config file, so we manually
+             # configure its flags. liblzma just works.
+             #>
+            Execute-Bash "ZSTD_CFLAGS='-L/${env:compiler_path}/include' ZSTD_LIBS='-L/${env:compiler_path}/lib -lzstd' ../configure --prefix=/${env:compiler_path} --build=${env:target} --host=${env:target} --with-openssl-dir=/${env:compiler_path} --disable-asciidoc --enable-fatal-warnings ${env:hardening} CFLAGS='-D__USE_MINGW_ANSI_STDIO=0'"
+            Execute-Bash "V=1 make -k -j2"
+            Execute-Bash "V=1 make -k -j2 install"
+     }
+
+test_script:
+- ps: >-
+    if ($env:compiler -eq "mingw") {
+            <# use the MSYS2 compiler binaries to make check #>
+            $oldpath = ${env:Path} -split ';'
+            $buildpath = @("C:\msys64\${env:compiler_path}\bin") + $oldpath
+            $env:Path = $buildpath -join ';'
+            Set-Location "${env:build}"
+            <# Some compiler dlls must be copied to the test and app
+             # directories, before running tor's tests.
+             #>
+            Copy-Item "C:/msys64/${env:compiler_path}/bin/libssp-0.dll","C:/msys64/${env:compiler_path}/bin/zlib1.dll" -Destination "${env:build}/src/test"
+            Copy-Item "C:/msys64/${env:compiler_path}/bin/libssp-0.dll","C:/msys64/${env:compiler_path}/bin/zlib1.dll" -Destination "${env:build}/src/app"
+            <# All installed library dlls must be copied to the test and app
+             # directories, before running tor's tests.
+             # (See install command above.)
+             #>
+            Copy-Item "C:/${env:compiler_path}/bin/libcrypto*.dll","C:/${env:compiler_path}/bin/libssl*.dll","C:/${env:compiler_path}/bin/liblzma*.dll","C:/${env:compiler_path}/bin/libevent*.dll","C:/${env:compiler_path}/bin/libzstd*.dll" -Destination "${env:build}/src/test"
+            Copy-Item "C:/${env:compiler_path}/bin/libcrypto*.dll","C:/${env:compiler_path}/bin/libssl*.dll","C:/${env:compiler_path}/bin/liblzma*.dll","C:/${env:compiler_path}/bin/libevent*.dll","C:/${env:compiler_path}/bin/libzstd*.dll" -Destination "${env:build}/src/app"
+            Execute-Bash "VERBOSE=1 TOR_SKIP_TESTCASES=crypto/openssl_version make -k -j2 check"
+    }
+
+on_finish:
+- ps: >-
+    <# if we failed before install:, these functions won't be defined #>
+    Function Execute-Command ($commandPath)
+    {
+        & $commandPath $args 2>&1
+        if ( $LastExitCode -ne 0 ) {
+            $host.SetShouldExit( $LastExitCode )
+        }
+    }
+    Function Execute-Bash ()
+    {
+        Execute-Command 'c:\msys64\usr\bin\bash' '-e' '-c' $args
+    }
+    if ($env:compiler -eq "mingw") {
+            <# use the MSYS2 user binaries to archive failures #>
+            $oldpath = ${env:Path} -split ';'
+            $buildpath = @("C:\msys64\usr\bin") + $oldpath
+            $env:Path = @($buildpath) -join ';'
+            Set-Location "${env:build}"
+            <# store logs as appveyor artifacts: see the artifacts tab #>
+            Execute-Bash "7z a logs.zip config.log || true"
+            Execute-Bash "7z a logs.zip test-suite.log || true"
+            Execute-Bash "appveyor PushArtifact logs.zip || true"
+            Execute-Bash "tail -1000 config.log || true"
+            Execute-Bash "cat test-suite.log || true"
+    }
+
+# notify the IRC channel of any failures
+on_failure:
+- cmd: C:\Python27\python.exe %APPVEYOR_BUILD_FOLDER%\scripts\test\appveyor-irc-notify.py irc.oftc.net:6697 tor-ci failure

.clang-format

+# DO NOT COMMIT OR MERGE CODE THAT IS RUN THROUGH THIS TOOL YET.
+#
+# WE ARE STILL DISCUSSING OUR DESIRED STYLE AND ITERATING ON IT.
+#     (12 Feb 2020)
+
+---
+Language:        Cpp
+# Out of all supported styles, LLVM seems closest to our own.
+BasedOnStyle:    LLVM
+
+################
+#
+# Deviations from LLVM's style.
+#
+################
+
+# We prefer an indentation width of 4 columns; LLVM likes 2.
+## OVERRIDE FOR COMPARISON
+IndentWidth:     2
+
+## OVERRIDE FOR COMPARISON
+## for now i'm not sorting includes, since that makes every file get touched.
+SortIncludes: false
+
+# We prefer 79; llvm likes 80.
+ColumnLimit: 79
+
+# Where do we want to put backslashes on multiline macros?  Our choices are
+# "as far left as possible", "as far right as possible", and "make no changes."
+# LLVM defaults to right, but we don't dig that.
+AlignEscapedNewlines: Left
+
+# When we see a bunch of things in a row with comments after them, should we
+# try to align those comments?  Doing so makes some of our code pretty ugly.
+AlignTrailingComments: false
+
+# We use a function declaration style much closer to BSD KNF than to LLVM's.
+# We say:
+#      int foo(int x);
+#      int
+#      foo(int x)
+#      {
+#          ...
+#      }
+# whereas llvm prefers:
+#      int foo(int x);
+#      int foo(int x) {
+#          ...
+#      }
+# or even:
+#      int foo(int x) { ... }
+#
+BreakBeforeBraces: Custom
+BraceWrapping:
+  AfterFunction:   true
+AllowShortFunctionsOnASingleLine: None
+AlwaysBreakAfterReturnType: AllDefinitions
+
+# We don't like blocks to start with an empty line.
+#
+KeepEmptyLinesAtTheStartOfBlocks: false
+
+################
+#
+# Tor-specific magic
+#
+################
+
+#
+# These comments are magical, and should not be changed.
+#
+CommentPragmas:  'LCOV_EXCL|COVERITY'
+
+#
+# Remove duplicate empty lines.
+#
+MaxEmptyLinesToKeep: 1
+
+#
+# Indent preprocessor directives, for clarity.
+#
+IndentPPDirectives: AfterHash
+
+#
+# These introduce an iteration, and work a bit like a for loop.
+#
+# Note that we can NOT include ones that don't work like "for".  For example,
+# if the body is an argument to the macro, we can't list it here.
+#
+ForEachMacros:
+  - MAP_FOREACH
+  - MAP_FOREACH_MODIFY
+  - TOR_SIMPLEQ_FOREACH
+  - TOR_SIMPLEQ_FOREACH_SAFE
+  - TOR_SLIST_FOREACH
+  - TOR_SLIST_FOREACH_SAFE
+  - TOR_LIST_FOREACH
+  - TOR_LIST_FOREACH_SAFE
+  - TOR_TAILQ_FOREACH
+  - TOR_TAILQ_FOREACH_SAFE
+  - TOR_TAILQ_FOREACH_REVERSE
+  - TOR_TAILQ_FOREACH_REVERSE_SAFE
+  - TOR_CIRCLEQ_FOREACH
+  - TOR_CIRCLEQ_FOREACH_SAFE
+  - TOR_CIRCLEQ_FOREACH_REVERSE
+  - TOR_CIRCLEQ_FOREACH_REVERSE_SAFE
+  - HT_FOREACH
+  - SMARTLIST_FOREACH_BEGIN
+  - DIGESTMAP_FOREACH
+  - DIGESTMAP_FOREACH_MODIFY
+  - DIGEST256MAP_FOREACH
+  - DIGEST256MAP_FOREACH_MODIFY
+  - SDMAP_FOREACH
+  - RIMAP_FOREACH
+  - EIMAP_FOREACH
+
+#
+# Omitting:
+#
+# - SMARTLIST_FOREACH, since the body of the loop is an argument.
+
+#
+# This explains how to sort our headers.
+#
+# This is more complex than it truly should be, but I've edited this till
+# compilation still mostly passes.
+#
+# I'm disabling this, however, since it's a distraction from the other
+# formatting issues. See SortIncludes above.
+#
+IncludeCategories:
+  - Regex:           '^"orconfig.h'
+    Priority:        -30
+  - Regex:           '^"ext/'
+    Priority:        -18
+  - Regex:           '^"lib/'
+    Priority:        -10
+  - Regex:           '^"core/or/or.h'
+    Priority:        -5
+  - Regex:           '^"core/'
+    Priority:        5
+  - Regex:           '^"feature/'
+    Priority:        10
+  - Regex:           '^"app/'
+    Priority:        20
+
+#
+# These macros should always cause indentation, as though they were { and }.
+#
+# Do NOT put macros here unless you want an extra level of indentation between
+# them whenever they appear.
+#
+MacroBlockBegin: "^STMT_BEGIN|TT_STMT_BEGIN$"
+MacroBlockEnd:   "^STMT_END|TT_STMT_END$"
+
+#
+# These macros are interpreted as types.
+# (Not supported in my clang-format)
+#
+# TypenameMacros:
+#    - "STACK_OF"
+
+...

.cvsignore

-Makefile
-Makefile.in
-aclocal.m4
-autom4te.cache
-configure
-orconfig.h
-orconfig.h.in
-config.cache
-config.log
-config.status
-config.guess
-config.sub
-conftest*
-stamp-h
-stamp-h1
-tor.sh
-depcomp
-install-sh
-missing
-mkinstalldirs

.editorconfig

+# this should work for all editors that support .editorconfig!
+#
+# on debian, emacs users should install elpa-editorconfig and vim
+# users should install vim-editorconfig.
+
+root = true
+
+[*]
+indent_style = space
+# this remove final newline in some editors, instead of inserting it
+# insert_final_newline = true
+trim_trailing_whitespace = true
+end_of_line = lf
+charset = utf-8
+max_line_length = 79
+
+[*.py]
+indent_size = 4
+# to do not have final newline in python code
+insert_final_newline = true
+
+[*.c, *.h]
+# done in tests and other cases do not use 2 spaces identations, so this
+# should be commented on those cases
+indent_size = 2
+trim_trailing_whitespace = true
+
+[Makefile, *.am]
+indent_style = tab
+
+[*-spec.txt]
+# specs seem to have 76 chars max per lines as RFCs
+max_line_length = 76
\ No newline at end of file

.gitignore

+# Editor droppings
+\#*\#
+.#*
+*~
+*.swp
+*.swo
+# C stuff
+*.o
+*.a
+*.obj
+# Diff droppings
+*.orig
+*.rej
+# gcov stuff
+*.gcno
+*.gcov
+*.gcda
+# Autotools stuff
+.deps
+.dirstamp
+*.trs
+*.log
+# Calltool stuff
+.*.graph
+# Stuff made by our makefiles
+*.bak
+# Python droppings
+*.pyc
+*.pyo
+# Cscope
+cscope.*
+# OSX junk
+*.dSYM
+.DS_Store
+# updateFallbackDirs.py temp files
+details-*.json
+uptime-*.json
+*.full_url
+*.last_modified
+# Core files
+core
+core.*
+!core/
+# ccls file that can be per directory.
+*.ccls
+# clangd uses that for LSP caching.
+/.cache
+
+# /
+/Makefile
+/Makefile.in
+/aclocal.m4
+/ar-lib
+/autom4te.cache
+/build-stamp
+/compile
+/configure
+/Doxyfile
+/orconfig.h
+/orconfig.h.in
+/config.cache
+/config.log
+/config.status
+/config.guess
+/config.sub
+/conftest*
+/micro-revision.*
+/patch-stamp
+/stamp-h
+/stamp-h.in
+/stamp-h1
+/tags
+/TAGS
+/target
+/test-driver
+/tor.sh
+/tor.spec
+/depcomp
+/install-sh
+/missing
+/mkinstalldirs
+/Tor*Bundle.dmg
+/tor-*-win32.exe
+/warning_flags
+/compile_commands.json
+
+/coverage_html/
+/callgraph/
+
+# /contrib/
+/contrib/dist/torctl
+/contrib/dist/tor.service
+/contrib/operator-tools/tor.logrotate
+
+# /debian/
+/debian/files
+/debian/micro-revision.i
+/debian/patched
+/debian/tor
+/debian/tor.postinst.debhelper
+/debian/tor.postrm.debhelper
+/debian/tor.prerm.debhelper
+/debian/tor.substvars
+
+# /doc/
+/doc/Makefile
+/doc/Makefile.in
+/doc/doxygen
+/doc/man/tor.1
+/doc/man/tor.1.in
+/doc/man/tor.html
+/doc/man/tor.html.in
+/doc/man/tor.1.xml
+/doc/man/tor-gencert.1
+/doc/man/tor-gencert.1.in
+/doc/man/tor-gencert.html
+/doc/man/tor-gencert.html.in
+/doc/man/tor-gencert.1.xml
+/doc/man/tor-resolve.1
+/doc/man/tor-resolve.1.in
+/doc/man/tor-resolve.html
+/doc/man/tor-resolve.html.in
+/doc/man/tor-resolve.1.xml
+/doc/man/torify.1
+/doc/man/torify.1.in
+/doc/man/torify.html
+/doc/man/torify.html.in
+/doc/man/torify.1.xml
+/doc/man/tor-print-ed-signing-cert.1
+/doc/man/tor-print-ed-signing-cert.1.in
+/doc/man/tor-print-ed-signing-cert.html
+/doc/man/tor-print-ed-signing-cert.html.in
+/doc/man/tor-print-ed-signing-cert.1.xml
+
+# /doc/spec/
+/doc/spec/Makefile
+/doc/spec/Makefile.in
+
+# /scripts
+/scripts/maint/checkOptionDocs.pl
+/scripts/maint/updateVersions.pl
+scripts/maint/geoip/geoip
+scripts/maint/geoip/geoip6
+
+# /src/
+/src/Makefile
+/src/Makefile.in
+
+# /src/config/
+/src/config/Makefile
+/src/config/Makefile.in
+/src/config/sample-server-torrc
+/src/config/torrc
+/src/config/torrc.sample
+/src/config/torrc.minimal
+
+# /src/ext/
+/src/ext/ed25519/ref10/libed25519_ref10.lib
+/src/ext/ed25519/donna/libed25519_donna.lib
+/src/ext/keccak-tiny/libkeccak-tiny.lib
+
+# /src/app
+/src/app/tor
+/src/app/tor.exe
+/src/app/tor-cov
+/src/app/tor-cov.exe
+
+# /src/test
+/src/test/Makefile
+/src/test/Makefile.in
+/src/test/bench
+/src/test/bench.exe
+/src/test/test
+/src/test/test-slow
+/src/test/test-bt-cl
+/src/test/test-process
+/src/test/test-memwipe
+/src/test/test-ntor-cl
+/src/test/test-hs-ntor-cl
+/src/test/test-rng
+/src/test/test-switch-id
+/src/test/test-timers
+/src/test/test_workqueue
+/src/test/test.exe
+/src/test/test-slow.exe
+/src/test/test-bt-cl.exe
+/src/test/test-process.exe
+/src/test/test-ntor-cl.exe
+/src/test/test-hs-ntor-cl.exe
+/src/test/test-memwipe.exe
+/src/test/test-rng.exe
+/src/test/test-switch-id.exe
+/src/test/test-timers.exe
+/src/test/test_workqueue.exe
+
+# /src/test/fuzz
+/src/test/fuzz/fuzz-*
+/src/test/fuzz/lf-fuzz-*
+
+# /src/tools/
+/src/tools/tor-checkkey
+/src/tools/tor-resolve
+/src/tools/tor-cov-resolve
+/src/tools/tor-gencert
+/src/tools/tor-print-ed-signing-cert
+/src/tools/tor-print-ed-signing-cert.exe
+/src/tools/tor-cov-gencert
+/src/tools/tor-checkkey.exe
+/src/tools/tor-resolve.exe
+/src/tools/tor-cov-resolve.exe
+/src/tools/tor-gencert.exe
+/src/tools/tor-cov-gencert.exe
+/src/tools/Makefile
+/src/tools/Makefile.in
+
+# /src/win32/
+/src/win32/Makefile
+/src/win32/Makefile.in

.gitlab-ci.yml

+####
+# DO NOT EDIT THIS FILE IN MASTER.  ONLY EDIT IT IN THE OLDEST SUPPORTED
+# BRANCH, THEN MERGE FORWARD.
+####
+
+# This file controls how gitlab validates Tor commits and merge requests.
+#
+# It is primarily based on a set of scripts and configurations by
+# Hans-Christoph Steiner.  It only copies parts of those scripts and
+# configurations for now.  If you want a new piece of functionality
+# (more debians, more fedoras, android support) then you shouldn't
+# start from scratch: have a look at the original ticket, at
+# https://gitlab.torproject.org/tpo/core/tor/-/issues/32193 !
+#
+# The file to copy from is
+# https://gitlab.torproject.org/tpo/core/tor/-/merge_requests/96/diffs#diff-content-587d266bb27a4dc3022bbed44dfa19849df3044c
+#
+# Having said that, if there is anything really stupid here, don't
+# blame it on Hans-Christoph! Tor probably added it on their own.
+#
+# Copyright 2020, The Tor Project, Inc.
+# See LICENSE for licence information.
+
+# These variables are set everywhere, unconditionally.
+variables:
+  TERM: "ansi"
+  DEBUG_CI: "yes"
+
+# This template is for exporting ephemeral things from the scripts.  By
+# convention we expect our scripts to copy stuff into artifacts/, rather than
+# having a big list of files that be treated as artifacts.
+.artifacts-template: &artifacts-template
+  artifacts:
+    name: "${CI_PROJECT_PATH}_${CI_JOB_STAGE}_${CI_COMMIT_REF_NAME}_${CI_COMMIT_SHA}"
+    expire_in: 1 week
+    when: always
+    paths:
+      - artifacts/
+
+
+# This template is used for x86-64 builds.
+.x86-64-template: &x86-64-template
+  tags:
+    - amd64
+    - physical
+
+# This template should be usable on any system that's based on apt.
+.apt-template: &apt-template |
+      export LC_ALL=C.UTF-8
+      echo Etc/UTC > /etc/timezone
+      mkdir -p apt-cache
+      export APT_CACHE_DIR="$(pwd)/apt-cache"
+      rm -f /etc/apt/apt.conf.d/docker-clean
+      echo 'quiet "1";' \
+           'Acquire::Retries "20";' \
+           'APT::Install-Recommends "0";' \
+           'APT::Install-Suggests "0";' \
+           'APT::Get::Assume-Yes "true";' \
+           'Dpkg::Use-Pty "0";' \
+           "Dir::Cache::Archives \"${APT_CACHE_DIR}\"; " \
+        >> /etc/apt/apt.conf.d/99gitlab
+      apt-get update -qq
+      apt-get upgrade -qy
+
+# This template sets us up for Debian system in particular.
+.debian-template: &debian-template
+  <<: *artifacts-template
+  <<: *x86-64-template
+  variables:
+    DEBIAN_FRONTEND: "noninteractive"
+  # TODO: Using "cache" in this way speeds up our downloads.  It would be
+  # even better, though, to start with a pre-upgraded debian image.
+  #
+  # TODO: Will we have to do this differently once we have more than one
+  # debian version that we're using?
+  cache:
+    key: apt
+    paths:
+      - apt-cache
+  before_script:
+    - *apt-template
+    # Install patches unconditionally.
+    - apt-get install
+        apt-utils
+        automake
+        build-essential
+        ca-certificates
+        file
+        git
+        libevent-dev
+        liblzma-dev
+        libscrypt-dev
+        libseccomp-dev
+        libssl-dev
+        pkg-config
+        python3
+        zlib1g-dev
+    # Install patches that we only need for some use cases.
+    - if [ "$ASCIIDOC" = yes ]; then apt-get install asciidoc xmlto; fi
+    - if [ "$DOXYGEN" = yes ]; then apt-get install doxygen; fi
+    - if [ "$STEM" = yes ]; then apt-get install timelimit; fi
+    - if [ "$CC" = clang ]; then apt-get install clang; fi
+    - if [ "$NSS" = yes ]; then apt-get install libnss3 libnss3-dev; fi
+    # llvm-symbolizer for sanitizer backtrace
+    - if [ "$HARDENING" = yes ]; then apt-get install llvm; fi
+    # TODO: This next line should not be debian-only.
+    - if [ "$STEM" = yes ]; then git clone --depth 1 https://gitlab.torproject.org/tpo/network-health/stem.git ; export STEM_PATH="$(pwd)/stem"; fi
+    # TODO: This next line should not be debian-only.
+    - |
+      if [ "$CHUTNEY" = yes ]; then
+        # Use a fixed version of chutney to avoid surprise breakage.
+        CHUTNEY_SHALLOW_SINCE=2024-10-28
+        CHUTNEY_COMMIT=be881a1e7c4bc8038fa13fde4a7b24e5c56349c4
+
+        git clone --shallow-since "$CHUTNEY_SHALLOW_SINCE" https://gitlab.torproject.org/tpo/core/chutney.git
+        git -C ./chutney checkout "$CHUTNEY_COMMIT"
+        export CHUTNEY_PATH="$(pwd)/chutney"
+        # Have pip install chutney's python dependencies by installing chutney
+        # itself.
+        apt-get install python3-pip
+        pip3 install --user ./chutney
+      fi
+    - if [ "$TRACING" = yes ]; then apt install liblttng-ust-dev; fi
+
+# Minimal check on debian: just make, make check.
+#
+debian-minimal:
+  image: containers.torproject.org/tpo/tpa/base-images/debian:bullseye
+  <<: *debian-template
+  script:
+    - ./scripts/ci/ci-driver.sh
+
+# Minimal check on debian/i386: just make, make check.
+#
+debian-i386-minimal:
+  # TODO: Use a TPA-maintained image when there is one.
+  # See https://gitlab.torproject.org/tpo/tpa/base-images/-/issues/3
+  image:
+    name: i386/debian:bullseye
+    docker:
+      platform: linux/386
+  <<: *debian-template
+  script:
+    - ./scripts/ci/ci-driver.sh
+  tags:
+    - physical
+
+#####
+# Run "make check" with a hardened clang on debian stable.  This takes
+# care of a hardening check, and a compile-with-clang check.
+#
+# TODO: This will be faster once we merge #40098 and #40099.
+debian-hardened:
+  image: containers.torproject.org/tpo/tpa/base-images/debian:bullseye
+  <<: *debian-template
+  variables:
+    ALL_BUGS_ARE_FATAL: "yes"
+    HARDENING: "yes"
+    CC: "clang"
+  script:
+    - ./scripts/ci/ci-driver.sh
+
+#####
+# Distcheck on debian stable
+debian-distcheck:
+  image: containers.torproject.org/tpo/tpa/base-images/debian:bullseye
+  <<: *debian-template
+  variables:
+    DISTCHECK: "yes"
+    CHECK: "no"
+  script:
+    - ./scripts/ci/ci-driver.sh
+
+#####
+# Documentation tests on debian stable: doxygen and asciidoc.
+debian-docs:
+  image: containers.torproject.org/tpo/tpa/base-images/debian:bullseye
+  <<: *debian-template
+  variables:
+    DOXYGEN: "yes"
+    ASCIIDOC: "yes"
+    CHECK: "no"
+    RUN_STAGE_BUILD: "no"
+  script:
+    - ./scripts/ci/ci-driver.sh
+
+#####
+# Integration tests on debian stable: chutney and stem.
+#
+# TODO: It would be cool if this target didn't have to re-build tor, and
+#       could instead re-use Tor from debian-minimal.  That can be done
+#       with the 'artifacts' mechanism, in theory, but it would be good to
+#       avoid having to have a system with hundreds of artifacts.
+debian-integration:
+  image: containers.torproject.org/tpo/tpa/base-images/debian:bullseye
+  <<: *debian-template
+  variables:
+    CHECK: "no"
+    CHUTNEY: "yes"
+    CHUTNEY_MAKE_TARGET: "test-network-all"
+    STEM: "yes"
+    ALL_BUGS_ARE_FATAL: "yes"
+  script:
+    - ./scripts/ci/ci-driver.sh
+
+#####
+# Tracing build on Debian stable.
+debian-tracing:
+  image: containers.torproject.org/tpo/tpa/base-images/debian:bullseye
+  <<: *debian-template
+  variables:
+    TRACING: "yes"
+    CHECK: "no"
+    DISTCHECK: "yes"
+  script:
+    - ./scripts/ci/ci-driver.sh
+
+#####
+# No-authority mode
+debian-disable-dirauth:
+  image: containers.torproject.org/tpo/tpa/base-images/debian:bullseye
+  <<: *debian-template
+  variables:
+    DISABLE_DIRAUTH: "yes"
+  script:
+    - ./scripts/ci/ci-driver.sh
+
+#####
+# No-relay mode
+debian-disable-relay:
+  image: containers.torproject.org/tpo/tpa/base-images/debian:bullseye
+  <<: *debian-template
+  variables:
+    DISABLE_RELAY: "yes"
+  script:
+    - ./scripts/ci/ci-driver.sh
+
+#####
+# GPL licensed mode, enables pow module
+debian-gpl:
+  image: containers.torproject.org/tpo/tpa/base-images/debian:bullseye
+  <<: *debian-template
+  variables:
+    GPL: "yes"
+  script:
+    - ./scripts/ci/ci-driver.sh
+
+#####
+# NSS check on debian
+debian-nss:
+  image: containers.torproject.org/tpo/tpa/base-images/debian:bullseye
+  <<: *debian-template
+  variables:
+    NSS: "yes"
+  script:
+    - ./scripts/ci/ci-driver.sh
+
+#####
+# Debian packaging triggers for maintenance branches
+debian-packaging-0.4.5:
+  stage: deploy
+  trigger:
+    project: tpo/core/debian/tor
+    branch: debian-0.4.5
+  rules:
+    - if: $CI_PROJECT_NAMESPACE == "tpo/core" &&
+          $CI_COMMIT_BRANCH == "maint-0.4.5"
+debian-packaging-0.4.6:
+  stage: deploy
+  trigger:
+    project: tpo/core/debian/tor
+    branch: debian-0.4.6
+  rules:
+    - if: $CI_PROJECT_NAMESPACE == "tpo/core" &&
+          $CI_COMMIT_BRANCH == "maint-0.4.6"
+
+#####
+# Run tests written in Rust, and run clippy on all Rust code here.
+rust-latest:
+  image: rust:latest
+  <<: *debian-template
+  script:
+    - apt-get install llvm-dev libclang-dev clang
+    - rustup show
+    - cargo build --locked --verbose
+    - cargo test --verbose
+    - rustup component add clippy
+    - rustup show
+    - cargo clippy --all-features --all-targets -- -D warnings
+  after_script:
+    - cargo clean

.gitlab/issue_templates/Bug.md

+### Summary
+
+
+
+### Steps to reproduce:
+
+1. Step 1
+2. ...
+
+### What is the current bug behavior?
+
+
+
+### What is the expected behavior?
+
+
+
+### Environment
+
+- Which version of Tor are you using? Run `tor --version` to get the version if you are unsure.
+- Which operating system are you using? For example: Debian GNU/Linux 10.1, Windows 10, Ubuntu Xenial, FreeBSD 12.2, etc.
+- Which installation method did you use? Distribution package (apt, pkg, homebrew), from source tarball, from Git, etc.
+
+### Relevant logs and/or screenshots
+
+
+
+### Possible fixes
+
+
+
+/label ~Bug

.gitlab/issue_templates/Feature.md

+### Summary
+
+
+
+### What is the expected behavior?
+
+
+
+/label ~Feature

.travis.yml

+language: c
+
+cache:
+  ccache: true
+
+compiler:
+  - gcc
+
+os:
+  - linux
+
+## We don't use the build matrix cross-product, because it makes too many jobs
+## Instead, we list each job under matrix: include:
+env:
+  global:
+    ## The Travis CI environment allows us two cores, so let's use both.  Also,
+    ## let's use the "-k" flag so that we get all of the compilation failures,
+    ## not just the first one.
+    - MAKEFLAGS="-k -j 2"
+    ## We turn on hardening by default
+    ## Also known as --enable-fragile-hardening in 0.3.0.3-alpha and later
+    - HARDENING_OPTIONS="--enable-all-bugs-are-fatal --enable-expensive-hardening"
+    ## We turn off asciidoc by default, because it's slow
+    - ASCIIDOC_OPTIONS="--disable-asciidoc"
+    ## Turn off tor's sandbox in chutney, until we fix sandbox errors that are
+    ## triggered by Ubuntu Xenial and Bionic. See #32722.
+    - CHUTNEY_TOR_SANDBOX="0"
+    ## The default target for chutney jobs
+    - CHUTNEY_MAKE="test-network-all"
+  matrix:
+    ## This matrix entry is required, but it doesn't actually create any jobs
+    -
+
+matrix:
+  ## include creates builds with gcc, linux, unless we override those defaults
+  include:
+    ## We run chutney on macOS, because macOS Travis has IPv6
+    ## But we only run the IPv6 chutney tests, to speed up the job
+    - env: CHUTNEY_MAKE="test-network-ipv6" CHUTNEY="yes" CHUTNEY_ALLOW_FAILURES="2" SKIP_MAKE_CHECK="yes"
+      os: osx
+
+    ## We also run basic tests on macOS
+    - compiler: clang
+      os: osx
+      ## Turn off some newer features, turn on clang's -Wtypedef-redefinition
+      ## Also, disable ALL_BUGS_ARE_FATAL macro.
+      env: C_DIALECT_OPTIONS="-std=gnu99" HARDENING_OPTIONS="--enable-expensive-hardening"
+
+    ## We run chutney on Linux, because it's faster than chutney on macOS
+    ## Chutney is a fast job, clang is slower on Linux, so we do Chutney clang
+    - env: CHUTNEY="yes" CHUTNEY_ALLOW_FAILURES="2" SKIP_MAKE_CHECK="yes"
+      compiler: clang
+
+    ## We check asciidoc with distcheck, to make sure we remove doc products
+    - env: DISTCHECK="yes" ASCIIDOC_OPTIONS="" SKIP_MAKE_CHECK="yes"
+
+    ## We check disable module relay
+    - env: MODULES_OPTIONS="--disable-module-relay" HARDENING_OPTIONS="--enable-expensive-hardening"
+    ## We check disable module dirauth
+    - env: MODULES_OPTIONS="--disable-module-dirauth" HARDENING_OPTIONS="--enable-expensive-hardening"
+
+    ## We check NSS
+    ## Use -std=gnu99 to turn off some newer features, and maybe turn on some
+    ## extra gcc warnings?
+    - env: NSS_OPTIONS="--enable-nss" C_DIALECT_OPTIONS="-std=gnu99" HARDENING_OPTIONS="--enable-expensive-hardening"
+
+    ## We include a single coverage build with the best options for coverage
+    - env: COVERAGE_OPTIONS="--enable-coverage" HARDENING_OPTIONS="" TOR_TEST_RNG_SEED="636f766572616765"
+
+    ## We clone our stem repo and run `make test-stem`
+    - env: TEST_STEM="yes" SKIP_MAKE_CHECK="yes"
+
+    ## We run `make doxygen` without `make check`.
+    - env: SKIP_MAKE_CHECK="yes" DOXYGEN="yes"
+
+  ## Allow the build to report success (with non-required sub-builds
+  ## continuing to run) if all required sub-builds have succeeded.
+  fast_finish: true
+
+  ## Careful! We use global envs, which makes it hard to allow failures by env:
+  ## https://docs.travis-ci.com/user/customizing-the-build#matching-jobs-with-allow_failures
+  allow_failures:
+    ## Since we're actively developing IPv6, we want to require the IPv6
+    ## chutney tests
+    #- env: CHUTNEY_MAKE="test-network-ipv6" CHUTNEY="yes" CHUTNEY_ALLOW_FAILURES="2" SKIP_MAKE_CHECK="yes"
+    #  os: osx
+
+## (Linux only) Use a recent Linux image (Ubuntu Bionic)
+dist: bionic
+
+## Download our dependencies
+addons:
+  ## (Linux only)
+  apt:
+    packages:
+      ## Required dependencies
+      - libevent-dev
+      ## Ubuntu comes with OpenSSL by default
+      #- libssl-dev
+      - zlib1g-dev
+      ## Optional dependencies
+      - libcap-dev
+      - liblzma-dev
+      - libnss3-dev
+      - libscrypt-dev
+      - libseccomp-dev
+      - libzstd-dev
+      ## Optional build dependencies
+      - coccinelle
+      - shellcheck
+      ## Conditional build dependencies
+      ## Always installed, so we don't need sudo
+      - asciidoc
+      - docbook-xsl
+      - docbook-xml
+      - xmlto
+      - doxygen
+      ## Utilities
+      ## preventing or diagnosing hangs
+      - timelimit
+  ## (OSX only)
+  homebrew:
+    packages:
+      ## Required dependencies
+      - libevent
+      ## The OSX version of OpenSSL is way too old
+      - openssl
+      ## OSX comes with zlib by default
+      ## to use a newer zlib, pass the keg path to configure (like OpenSSL)
+      #- zlib
+      ## Optional dependencies
+      - libscrypt
+      - xz
+      - zstd
+      ## Required build dependencies
+      ## Tor needs pkg-config to find some dependencies at build time
+      - pkg-config
+      ## Optional build dependencies
+      - ccache
+      - coccinelle
+      - shellcheck
+      ## Conditional build dependencies
+      ## Always installed, because manual brew installs are hard to get right
+      - asciidoc
+      - xmlto
+      ## Utilities
+      ## preventing or diagnosing hangs
+      - timelimit
+
+## (OSX only) Use a recent macOS image
+## See https://docs.travis-ci.com/user/reference/osx#os-x-version
+## Default is Xcode 9.4 on macOS 10.13 as of October 2019
+## Recent is Xcode 11.2 on macOS 10.14 as of October 2019
+osx_image: xcode11.2
+
+before_install:
+  ## Set pipefail: we use pipes
+  - set -o pipefail || echo "pipefail failed"
+
+install:
+  ## If we're on OSX, configure ccache (ccache is automatically installed and configured on Linux)
+  - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then export PATH="/usr/local/opt/ccache/libexec:$PATH"; fi
+  ## If we're on OSX, OpenSSL is keg-only, so tor 0.2.9 and later need to be configured --with-openssl-dir= to build
+  - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then OPENSSL_OPTIONS=--with-openssl-dir=`brew --prefix openssl`; fi
+  ## Install conditional features
+  ## Install coveralls
+  - if [[ "$COVERAGE_OPTIONS" != "" ]]; then pip install --user cpp-coveralls; fi
+  ## If we're on OSX, and using asciidoc, configure asciidoc
+  - if [[ "$ASCIIDOC_OPTIONS" == "" ]] && [[ "$TRAVIS_OS_NAME" == "osx" ]]; then export XML_CATALOG_FILES="/usr/local/etc/xml/catalog"; fi
+  ## If we're running chutney, install it.
+  - if [[ "$CHUTNEY" != "" ]]; then git clone --depth 1 https://github.com/torproject/chutney.git ; export CHUTNEY_PATH="$(pwd)/chutney"; fi
+  ## If we're running stem, install it.
+  - if [[ "$TEST_STEM" != "" ]]; then git clone --depth 1 https://github.com/torproject/stem.git ; export STEM_SOURCE_DIR=`pwd`/stem; fi
+  ##
+  ## Finally, list installed package versions
+  - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then dpkg-query --show; fi
+  - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then brew list --versions; fi
+  ## Get python version
+  - python --version
+  ## If we're running chutney, show the chutney commit
+  - if [[ "$CHUTNEY" != "" ]]; then pushd "$CHUTNEY_PATH"; git log -1 ; popd ; fi
+  ## If we're running stem, show the stem version and commit
+  - if [[ "$TEST_STEM" != "" ]]; then pushd stem; python -c "from stem import stem; print(stem.__version__);"; git log -1; popd; fi
+  ## Get the coccinelle version
+  ## Installs are unreliable on macOS, so we just rely on brew list --versions
+  - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then spatch --version; fi
+  ## We don't want Tor tests to depend on default configuration file at
+  ## ~/.torrc. So we put some random bytes in there, to make sure we get build
+  ## failures in case Tor is reading it during CI jobs.
+  - dd ibs=1 count=1024 if=/dev/urandom > ~/.torrc
+
+script:
+  # Skip test_rebind and test_include on macOS
+  - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then export TOR_SKIP_TEST_REBIND=true; export TOR_SKIP_TEST_INCLUDE=true; fi
+  - ./autogen.sh
+  - CONFIGURE_FLAGS="$ASCIIDOC_OPTIONS $COVERAGE_OPTIONS $HARDENING_OPTIONS $MODULES_OPTIONS $NSS_OPTIONS $OPENSSL_OPTIONS --enable-fatal-warnings --disable-silent-rules"
+  - echo "Configure flags are $CONFIGURE_FLAGS CC=\"$CC $C_DIALECT_OPTIONS\""
+  - ./configure $CONFIGURE_FLAGS CC="$CC $C_DIALECT_OPTIONS";
+  ## We run `make check` because that's what https://jenkins.torproject.org does.
+  - if [[ "$SKIP_MAKE_CHECK" == "" ]]; then make check; fi
+  - if [[ "$DISTCHECK" != "" ]]; then make distcheck DISTCHECK_CONFIGURE_FLAGS="$CONFIGURE_FLAGS"; fi
+  - if [[ "$CHUTNEY" != "" ]]; then make "$CHUTNEY_MAKE"; fi
+  ## Diagnostic for bug 29437: kill stem if it hangs for 9.5 minutes
+  ## Travis will kill the job after 10 minutes with no output
+  - if [[ "$TEST_STEM" != "" ]]; then make src/app/tor; timelimit -p -t 540 -s USR1 -T 30 -S ABRT python3 "$STEM_SOURCE_DIR"/run_tests.py --tor src/app/tor --integ --test control.controller --test control.base_controller --test process --log TRACE --log-file stem.log; fi
+  - if [[ "$DOXYGEN" != "" ]]; then make doxygen; fi
+  ## If this build was one that produced coverage, upload it.
+  - if [[ "$COVERAGE_OPTIONS" != "" ]]; then coveralls -b . --exclude src/test --exclude src/trunnel --gcov-options '\-p' || echo "Coverage failed"; fi
+
+after_failure:
+  ## configure will leave a log file with more details of config failures.
+  ## But the log is too long for travis' rendered view, so tail it.
+  - tail -1000 config.log || echo "tail failed"
+  ## `make check` will leave a log file with more details of test failures.
+  - if [[ "$SKIP_MAKE_CHECK" == "" ]]; then cat test-suite.log || echo "cat failed"; fi
+  ## `make distcheck` puts it somewhere different.
+  - if [[ "$DISTCHECK" != "" ]]; then make show-distdir-testlog || echo "make failed"; fi
+  - if [[ "$DISTCHECK" != "" ]]; then make show-distdir-core || echo "make failed"; fi
+  - if [[ "$CHUTNEY" != "" ]]; then "$CHUTNEY_PATH/tools/diagnostics.sh" || echo "diagnostics failed"; ls test_network_log || echo "ls failed"; cat test_network_log/* || echo "cat failed"; fi
+  - if [[ "$TEST_STEM" != "" ]]; then tail -1000 "$STEM_SOURCE_DIR"/test/data/tor_log || echo "tail failed"; fi
+  - if [[ "$TEST_STEM" != "" ]]; then grep -v "SocketClosed" stem.log | tail -1000 || echo "grep | tail failed"; fi
+
+before_cache:
+  ## Delete all gcov files.
+  - if [[ "$COVERAGE_OPTIONS" != "" ]]; then make reset-gcov; fi
+
+notifications:
+  irc:
+    channels:
+      - "irc.oftc.net#tor-ci"
+    template:
+      - "%{repository} %{branch} %{commit} - %{author}: %{commit_subject}"
+      - "Build #%{build_number} %{result}. Details: %{build_url}"
+    on_success: change
+    on_failure: change
+  email:
+    on_success: never
+    on_failure: change

AUTHORS

-
-Main authors:
--------------
-
-Roger Dingledine <arma@freehaven.net> overhauled all of the code, did
-a bunch of new design work, etc.
-
-Nick Mathewson <nickm@freehaven.net> wrote lots of stuff too, in
-particular the router and descriptor parsing, and the crypto and tls
-wrappers.
-
-Matej Pfajfar <badbytes@freehaven.net> wrote the first version of the code
-(called OR) in 2001-2002.
-
-Contributors:
--------------
-
-John Bashinski <jbash@velvet.com> contributed the initial rpm spec file.
-
-Christian Grothoff <grothoff@cs.purdue.edu> contributed better daemonizing
-behavior.
-
-Steven Hazel <sah@thalassocracy.org> made 'make install' do the right
-thing.
-
-Jason Holt <jason@lunkwill.org> contributed patches to the instructions
-and the man page.
-
-Peter Palfrader <peter@palfrader.org> maintains everything that's
-debian-specific.
-
-Aaron Turner <aturner@netscreen.com> contributed the first version of
-the tor.sh initscripts shell script.
-

CODE_OF_CONDUCT

+The Tor Project is committed to fostering a inclusive community
+where people feel safe to engage, share their points of view, and
+participate. For the latest version of our Code of Conduct, please
+see
+
+https://community.torproject.org/policies/code_of_conduct/

CONTRIBUTING

+Contributing to Tor
+-------------------
+
+### Getting started
+
+Welcome!
+
+We have a bunch of documentation about how to develop Tor in the
+doc/HACKING/ directory.  We recommend that you start with
+doc/HACKING/README.1st.md , and then go from there.  It will tell
+you how to find your way around the source code, how to get
+involved with the Tor community, how to write patches, and much
+more!
+
+You don't have to be a C developer to help with Tor: have a look
+at https://www.torproject.org/getinvolved/volunteer !
+
+The Tor Project is committed to fostering a inclusive community
+where people feel safe to engage, share their points of view, and
+participate. For the latest version of our Code of Conduct, please
+see
+
+https://gitweb.torproject.org/community/policies.git/plain/code_of_conduct.txt
+
+
+
+### License issues
+
+Tor is distributed under the license terms in the LICENSE -- in
+brief, the "3-clause BSD license".  If you send us code to
+distribute with Tor, it needs to be code that we can distribute
+under those terms.  Please don't send us patches unless you agree
+to allow this.
+
+Some compatible licenses include:
+
+  - 3-clause BSD
+  - 2-clause BSD
+  - CC0 Public Domain Dedication

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+ "lazy_static",
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+ "proc-macro2",
+ "quote",
+ "regex",
+ "rustc-hash",
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+ "jobserver",
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+
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+
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+]
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Cargo.toml

+# See doc/HACKING/Rust.md
+#
+# There is no plan to offer a stable Rust API to the C implementation of Tor.
+# This workspace is for wrapper crates that are used internally by Arti for
+# cross-compatibility and comparison testing.
+
+[workspace]
+
+members = [
+    "src/ext/equix",
+    "scripts/maint/geoip/geoip-db-tool",
+]
+
+resolver = "2"
+

INSTALL

-Quickstart version for users:
 
-0) Download the absolute newest version. No, really.
-  http://freehaven.net/tor/dist/
-1) tar xvf it, and then cd into the directory.
-2) ./configure
-3) make
-4) make install (as root if necessary)
-5) tor (if it doesn't work, give it the whole path or fix your path)
-  You don't need to run this as root, and you probably shouldn't.
-  (If you're having problems, try running it with "-l info" to get
-   more details.)
-6) point your browser to socks4 or socks5 proxy at localhost port
-  9050. In mozilla, this is in edit|preferences|advanced|proxies. This
-  allows you to test to make sure tor is installed correctly.
-  (If you have a personal firewall, be sure to allow local connections
-   to port 9050.)
-  (If your firewall blocks outgoing connections, punch a hole so it
-   can connect to TCP *:9001-9004 and *:9031-9033)
-  (If you're using Safari as your browser, keep in mind that OS X before
-   10.3 claims to support socks but does not. You must do step 8.)
-7) make sure you've set it up correctly: go to
-  http://www.junkbusters.com/cgi-bin/privacy and see what IP it says
-  you're coming from. If it works, you should probably go on to step 8,
-  to get better privacy.
+Most users who realize that INSTALL files still exist should simply
+follow the directions at
+https://www.torproject.org/docs/tor-doc-unix
 
-8) Optionally, install privoxy (www.privoxy.org), and add the line
-  "forward-socks4a / localhost:9050 ." (without the quotes -- don't forget
-  the dot) to its config file. Then change your mozilla to http proxy
-  at localhost port 8118 (and no socks proxy). You should also set your
-  SSL proxy to the same thing, to hide your https traffic. Using privoxy
-  will give you good html scrubbing as well.
-  (See doc/CLIENTS for why direct socks gives you less anonymity.)
+If you got the source from git, run "./autogen.sh", which will
+run the various auto* programs. Then you can run ./configure, and
+refer to the above instructions.
 
-*****If this works for you, you can stop reading here******
+If it doesn't build for you:
 
-If you got the source from cvs:
-
-  Run "./autogen.sh", which will run the various auto* programs and then
-  run ./configure for you. From there, start at step 3 in the quickstart
-  list above.
-
-If the quickstart doesn't work for you:
-
-  If you have problems finding libraries, try 
+  If you have problems finding libraries, try
     CPPFLAGS="-I/usr/local/include" LDFLAGS="-L/usr/local/lib" \
     ./configure
+  or
+    ./configure --with-libevent-dir=/usr/local
   rather than simply ./configure.
 
-  If you have mysterious autoconf failures while linking openssl,
-  consider setting your LD_LIBRARY_PATH to the openssl lib directory.
-  For example, "setenv LD_LIBRARY_PATH /usr/athena/lib".
-
-  Check out the list archives at http://archives.seul.org/or/dev/ and see
-  if somebody else has reported your problem. If not, please subscribe
-  and let us know what you did to fix it, or give us the details and
-  we'll see what we can do.
-

LICENSE

+                    This file contains the license for Tor,
+        a free software project to provide anonymity on the Internet.
+
+        It also lists the licenses for other components used by Tor.
+
+       For more information about Tor, see https://www.torproject.org/.
+
+             If you got this file as a part of a larger bundle,
+        there may be other license terms that you should be aware of.
+
+===============================================================================
+Tor is distributed under the "3-clause BSD" license, a commonly used
+software license that means Tor is both free software and open source:
+
 Copyright (c) 2001-2004, Roger Dingledine
+Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson
+Copyright (c) 2007-2019, The Tor Project, Inc.
 
 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions are
@@ -27,3 +43,347 @@ 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.
+===============================================================================
+src/ext/strlcat.c and src/ext/strlcpy.c by Todd C. Miller are licensed
+under the following license:
+
+ * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
+ * 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.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED ``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 AUTHOR 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.
+===============================================================================
+src/ext/tor_queue.h is licensed under the following license:
+
+ * Copyright (c) 1991, 1993
+ *      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.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
+
+===============================================================================
+src/ext/csiphash.c is licensed under the following license:
+
+ Copyright (c) 2013  Marek Majkowski <marek@popcount.org>
+
+ Permission is hereby granted, free of charge, to any person obtaining a copy
+ of this software and associated documentation files (the "Software"), to deal
+ in the Software without restriction, including without limitation the rights
+ to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ copies of the Software, and to permit persons to whom the Software is
+ furnished to do so, subject to the following conditions:
+
+ The above copyright notice and this permission notice shall be included in
+ all copies or substantial portions of the Software.
+
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ THE SOFTWARE.
+===============================================================================
+Trunnel is distributed under this license:
+
+Copyright 2014  The Tor Project, Inc.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+    * Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+
+    * 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.
+
+    * Neither the names of the copyright owners nor the names of its
+contributors may be used to endorse or promote products derived from
+this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY 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
+OWNER 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.
+
+===============================================================================
+getdelim.c is distributed under this license:
+
+ Copyright (c) 2011 The NetBSD Foundation, Inc.
+ All rights reserved.
+
+ This code is derived from software contributed to The NetBSD Foundation
+ by Christos Zoulas.
+
+ 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.
+
+ THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
+
+===============================================================================
+src/config/geoip and src/config/geoip6:
+
+These files are based on the IPFire Location Database. For more
+information, see https://location.ipfire.org/.
+
+The data is distributed under a creative commons "BY-SA 4.0" license.
+
+Find the full license terms at:
+     https://creativecommons.org/licenses/by-sa/4.0/
+
+===============================================================================
+m4/pc_from_ucontext.m4 is available under the following license.  Note that
+it is *not* built into the Tor software.
+
+Copyright (c) 2005, Google Inc.
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+    * Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+    * 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.
+    * Neither the name of Google Inc. nor the names of its
+contributors may be used to endorse or promote products derived from
+this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY 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
+OWNER 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.
+
+===============================================================================
+m4/pkg.m4 is available under the following license.  Note that
+it is *not* built into the Tor software.
+
+pkg.m4 - Macros to locate and utilise pkg-config.            -*- Autoconf -*-
+serial 1 (pkg-config-0.24)
+
+Copyright © 2004 Scott James Remnant <scott@netsplit.com>.
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+As a special exception to the GNU General Public License, if you
+distribute this file as part of a program that contains a
+configuration script generated by Autoconf, you may include it under
+the same distribution terms that you use for the rest of that program.
+===============================================================================
+src/ext/readpassphrase.[ch] are distributed under this license:
+
+  Copyright (c) 2000-2002, 2007 Todd C. Miller <Todd.Miller@courtesan.com>
+
+  Permission to use, copy, modify, and distribute this software for any
+  purpose with or without fee is hereby granted, provided that the above
+  copyright notice and this permission notice appear in all copies.
+
+  THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+  Sponsored in part by the Defense Advanced Research Projects
+  Agency (DARPA) and Air Force Research Laboratory, Air Force
+  Materiel Command, USAF, under agreement number F39502-99-1-0512.
+
+===============================================================================
+src/ext/mulodi4.c is distributed under this license:
+
+     =========================================================================
+     compiler_rt License
+     =========================================================================
+
+     The compiler_rt library is dual licensed under both the
+     University of Illinois "BSD-Like" license and the MIT license.
+     As a user of this code you may choose to use it under either
+     license.  As a contributor, you agree to allow your code to be
+     used under both.
+
+     Full text of the relevant licenses is included below.
+
+     =========================================================================
+
+     University of Illinois/NCSA
+     Open Source License
+
+     Copyright (c) 2009-2016 by the contributors listed in CREDITS.TXT
+
+     All rights reserved.
+
+     Developed by:
+
+         LLVM Team
+
+         University of Illinois at Urbana-Champaign
+
+         http://llvm.org
+
+     Permission is hereby granted, free of charge, to any person
+     obtaining a copy of this software and associated documentation
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+
+         * Redistributions of source code must retain the above
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+
+         * Redistributions in binary form must reproduce the above
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+         * Neither the names of the LLVM Team, University of Illinois
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+     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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+     OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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+     WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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+
+     =========================================================================
+
+     Copyright (c) 2009-2015 by the contributors listed in CREDITS.TXT
+
+     Permission is hereby granted, free of charge, to any person
+     obtaining a copy of this software and associated documentation
+     files (the "Software"), to deal in the Software without
+     restriction, including without limitation the rights to use,
+     copy, modify, merge, publish, distribute, sublicense, and/or sell
+     copies of the Software, and to permit persons to whom the
+     Software is furnished to do so, subject to the following
+     conditions:
+
+     The above copyright notice and this permission notice shall be
+     included in all copies or substantial portions of the Software.
+
+     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+     OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+     HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+     WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+     OTHER DEALINGS IN THE SOFTWARE.
+
+     =========================================================================
+     Copyrights and Licenses for Third Party Software Distributed with LLVM:
+     =========================================================================
+
+     The LLVM software contains code written by third parties.  Such
+     software will have its own individual LICENSE.TXT file in the
+     directory in which it appears.  This file will describe the
+     copyrights, license, and restrictions which apply to that code.
+
+     The disclaimer of warranty in the University of Illinois Open
+     Source License applies to all code in the LLVM Distribution, and
+     nothing in any of the other licenses gives permission to use the
+     names of the LLVM Team or the University of Illinois to endorse
+     or promote products derived from this Software.
+
+===============================================================================
+If you got Tor as a static binary with OpenSSL included, then you should know:
+ "This product includes software developed by the OpenSSL Project
+ for use in the OpenSSL Toolkit (http://www.openssl.org/)"
+===============================================================================