1.1--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2+++ b/scripts/init.sh	Sun Dec 03 18:44:34 2023 -0500
     1.3@@ -0,0 +1,679 @@
     1.4+#!/bin/sh
     1.5+
     1.6+# install the compiler.company installer.
     1.7+
     1.8+set -u
     1.9+
    1.10+COMPANY_UPDATE_ROOT="${COMPANY_UPDATE_ROOT:-https://packy.compiler.company/dist}"
    1.11+
    1.12+# NOTICE: If you change anything here, please make the same changes in setup_mode.rs
    1.13+usage() {
    1.14+    cat <<EOF
    1.15+cc-init 0.10 (0941fa04c53d+ 2023-12-03)
    1.16+The compiler.company installer
    1.17+
    1.18+USAGE:
    1.19+    cc-init [OPTIONS]
    1.20+
    1.21+OPTIONS:
    1.22+    -y Disable confirmation prompt.
    1.23+    -h, --help
    1.24+            Print help information
    1.25+    -V, --version
    1.26+            Print version information
    1.27+EOF
    1.28+}
    1.29+
    1.30+main() {
    1.31+    downloader --check
    1.32+    need_cmd uname
    1.33+    need_cmd mktemp
    1.34+    need_cmd chmod
    1.35+    need_cmd mkdir
    1.36+    need_cmd rm
    1.37+    need_cmd rmdir
    1.38+
    1.39+    get_architecture || return 1
    1.40+    local _arch="$RETVAL"
    1.41+    assert_nz "$_arch" "arch"
    1.42+
    1.43+    local _ext=""
    1.44+    case "$_arch" in
    1.45+        *windows*)
    1.46+            _ext=".exe"
    1.47+            ;;
    1.48+    esac
    1.49+
    1.50+    local _url="${COMPANY_UPDATE_ROOT}/${_arch}/cc-init${_ext}"
    1.51+
    1.52+    local _dir
    1.53+    if ! _dir="$(ensure mktemp -d)"; then
    1.54+        # Because the previous command ran in a subshell, we must manually
    1.55+        # propagate exit status.
    1.56+        exit 1
    1.57+    fi
    1.58+    local _file="${_dir}/cc-init${_ext}"
    1.59+
    1.60+    local _ansi_escapes_are_valid=false
    1.61+    if [ -t 2 ]; then
    1.62+        if [ "${TERM+set}" = 'set' ]; then
    1.63+            case "$TERM" in
    1.64+                xterm*|rxvt*|urxvt*|linux*|vt*)
    1.65+                    _ansi_escapes_are_valid=true
    1.66+                ;;
    1.67+            esac
    1.68+        fi
    1.69+    fi
    1.70+
    1.71+    # check if we have to use /dev/tty to prompt the user
    1.72+    local need_tty=yes
    1.73+    for arg in "$@"; do
    1.74+        case "$arg" in
    1.75+            --help)
    1.76+                usage
    1.77+                exit 0
    1.78+                ;;
    1.79+            *)
    1.80+                OPTIND=1
    1.81+                if [ "${arg%%--*}" = "" ]; then
    1.82+                    # Long option (other than --help);
    1.83+                    # don't attempt to interpret it.
    1.84+                    continue
    1.85+                fi
    1.86+                while getopts :hy sub_arg "$arg"; do
    1.87+                    case "$sub_arg" in
    1.88+                        h)
    1.89+                            usage
    1.90+                            exit 0
    1.91+                            ;;
    1.92+                        y)
    1.93+                            # user wants to skip the prompt --
    1.94+                            # we don't need /dev/tty
    1.95+                            need_tty=no
    1.96+                            ;;
    1.97+                        *)
    1.98+                            ;;
    1.99+                        esac
   1.100+                done
   1.101+                ;;
   1.102+        esac
   1.103+    done
   1.104+
   1.105+    if $_ansi_escapes_are_valid; then
   1.106+        printf "\33[1minfo:\33[0m downloading installer\n" 1>&2
   1.107+    else
   1.108+        printf '%s\n' 'info: downloading installer' 1>&2
   1.109+    fi
   1.110+
   1.111+    ensure mkdir -p "$_dir"
   1.112+    ensure downloader "$_url" "$_file" "$_arch"
   1.113+    ensure chmod u+x "$_file"
   1.114+    if [ ! -x "$_file" ]; then
   1.115+        printf '%s\n' "Cannot execute $_file (likely because of mounting /tmp as noexec)." 1>&2
   1.116+        printf '%s\n' "Please copy the file to a location where you can execute binaries and run ./cc-init${_ext}." 1>&2
   1.117+        exit 1
   1.118+    fi
   1.119+
   1.120+    if [ "$need_tty" = "yes" ] && [ ! -t 0 ]; then
   1.121+        # The installer is going to want to ask for confirmation by
   1.122+        # reading stdin.  This script was piped into `sh` though and
   1.123+        # doesn't have stdin to pass to its children. Instead we're going
   1.124+        # to explicitly connect /dev/tty to the installer's stdin.
   1.125+        if [ ! -t 1 ]; then
   1.126+            err "Unable to run interactively. Run with -y to accept defaults, --help for additional options"
   1.127+        fi
   1.128+
   1.129+        ignore "$_file" "$@" < /dev/tty
   1.130+    else
   1.131+        ignore "$_file" "$@"
   1.132+    fi
   1.133+
   1.134+    local _retval=$?
   1.135+
   1.136+    ignore rm "$_file"
   1.137+    ignore rmdir "$_dir"
   1.138+
   1.139+    return "$_retval"
   1.140+}
   1.141+
   1.142+check_proc() {
   1.143+    # Check for /proc by looking for the /proc/self/exe link
   1.144+    # This is only run on Linux
   1.145+    if ! test -L /proc/self/exe ; then
   1.146+        err "fatal: Unable to find /proc/self/exe.  Is /proc mounted?  Installation cannot proceed without /proc."
   1.147+    fi
   1.148+}
   1.149+
   1.150+get_bitness() {
   1.151+    need_cmd head
   1.152+    # Architecture detection without dependencies beyond coreutils.
   1.153+    # ELF files start out "\x7fELF", and the following byte is
   1.154+    #   0x01 for 32-bit and
   1.155+    #   0x02 for 64-bit.
   1.156+    # The printf builtin on some shells like dash only supports octal
   1.157+    # escape sequences, so we use those.
   1.158+    local _current_exe_head
   1.159+    _current_exe_head=$(head -c 5 /proc/self/exe )
   1.160+    if [ "$_current_exe_head" = "$(printf '\177ELF\001')" ]; then
   1.161+        echo 32
   1.162+    elif [ "$_current_exe_head" = "$(printf '\177ELF\002')" ]; then
   1.163+        echo 64
   1.164+    else
   1.165+        err "unknown platform bitness"
   1.166+    fi
   1.167+}
   1.168+
   1.169+is_host_amd64_elf() {
   1.170+    need_cmd head
   1.171+    need_cmd tail
   1.172+    # ELF e_machine detection without dependencies beyond coreutils.
   1.173+    # Two-byte field at offset 0x12 indicates the CPU,
   1.174+    # but we're interested in it being 0x3E to indicate amd64, or not that.
   1.175+    local _current_exe_machine
   1.176+    _current_exe_machine=$(head -c 19 /proc/self/exe | tail -c 1)
   1.177+    [ "$_current_exe_machine" = "$(printf '\076')" ]
   1.178+}
   1.179+
   1.180+get_endianness() {
   1.181+    local cputype=$1
   1.182+    local suffix_eb=$2
   1.183+    local suffix_el=$3
   1.184+
   1.185+    # detect endianness without od/hexdump, like get_bitness() does.
   1.186+    need_cmd head
   1.187+    need_cmd tail
   1.188+
   1.189+    local _current_exe_endianness
   1.190+    _current_exe_endianness="$(head -c 6 /proc/self/exe | tail -c 1)"
   1.191+    if [ "$_current_exe_endianness" = "$(printf '\001')" ]; then
   1.192+        echo "${cputype}${suffix_el}"
   1.193+    elif [ "$_current_exe_endianness" = "$(printf '\002')" ]; then
   1.194+        echo "${cputype}${suffix_eb}"
   1.195+    else
   1.196+        err "unknown platform endianness"
   1.197+    fi
   1.198+}
   1.199+
   1.200+get_architecture() {
   1.201+    local _ostype _cputype _bitness _arch _clibtype
   1.202+    _ostype="$(uname -s)"
   1.203+    _cputype="$(uname -m)"
   1.204+    _clibtype="gnu"
   1.205+
   1.206+    if [ "$_ostype" = Linux ]; then
   1.207+        if [ "$(uname -o)" = Android ]; then
   1.208+            _ostype=Android
   1.209+        fi
   1.210+        if ldd --version 2>&1 | grep -q 'musl'; then
   1.211+            _clibtype="musl"
   1.212+        fi
   1.213+    fi
   1.214+
   1.215+    if [ "$_ostype" = Darwin ] && [ "$_cputype" = i386 ]; then
   1.216+        # Darwin `uname -m` lies
   1.217+        if sysctl hw.optional.x86_64 | grep -q ': 1'; then
   1.218+            _cputype=x86_64
   1.219+        fi
   1.220+    fi
   1.221+
   1.222+    if [ "$_ostype" = SunOS ]; then
   1.223+        # Both Solaris and illumos presently announce as "SunOS" in "uname -s"
   1.224+        # so use "uname -o" to disambiguate.  We use the full path to the
   1.225+        # system uname in case the user has coreutils uname first in PATH,
   1.226+        # which has historically sometimes printed the wrong value here.
   1.227+        if [ "$(/usr/bin/uname -o)" = illumos ]; then
   1.228+            _ostype=illumos
   1.229+        fi
   1.230+
   1.231+        # illumos systems have multi-arch userlands, and "uname -m" reports the
   1.232+        # machine hardware name; e.g., "i86pc" on both 32- and 64-bit x86
   1.233+        # systems.  Check for the native (widest) instruction set on the
   1.234+        # running kernel:
   1.235+        if [ "$_cputype" = i86pc ]; then
   1.236+            _cputype="$(isainfo -n)"
   1.237+        fi
   1.238+    fi
   1.239+
   1.240+    case "$_ostype" in
   1.241+
   1.242+        Android)
   1.243+            _ostype=linux-android
   1.244+            ;;
   1.245+
   1.246+        Linux)
   1.247+            check_proc
   1.248+            _ostype=unknown-linux-$_clibtype
   1.249+            _bitness=$(get_bitness)
   1.250+            ;;
   1.251+
   1.252+        FreeBSD)
   1.253+            _ostype=unknown-freebsd
   1.254+            ;;
   1.255+
   1.256+        NetBSD)
   1.257+            _ostype=unknown-netbsd
   1.258+            ;;
   1.259+
   1.260+        DragonFly)
   1.261+            _ostype=unknown-dragonfly
   1.262+            ;;
   1.263+
   1.264+        Darwin)
   1.265+            _ostype=apple-darwin
   1.266+            ;;
   1.267+
   1.268+        illumos)
   1.269+            _ostype=unknown-illumos
   1.270+            ;;
   1.271+
   1.272+        MINGW* | MSYS* | CYGWIN* | Windows_NT)
   1.273+            _ostype=pc-windows-gnu
   1.274+            ;;
   1.275+
   1.276+        *)
   1.277+            err "unrecognized OS type: $_ostype"
   1.278+            ;;
   1.279+
   1.280+    esac
   1.281+
   1.282+    case "$_cputype" in
   1.283+
   1.284+        i386 | i486 | i686 | i786 | x86)
   1.285+            _cputype=i686
   1.286+            ;;
   1.287+
   1.288+        xscale | arm)
   1.289+            _cputype=arm
   1.290+            if [ "$_ostype" = "linux-android" ]; then
   1.291+                _ostype=linux-androideabi
   1.292+            fi
   1.293+            ;;
   1.294+
   1.295+        armv6l)
   1.296+            _cputype=arm
   1.297+            if [ "$_ostype" = "linux-android" ]; then
   1.298+                _ostype=linux-androideabi
   1.299+            else
   1.300+                _ostype="${_ostype}eabihf"
   1.301+            fi
   1.302+            ;;
   1.303+
   1.304+        armv7l | armv8l)
   1.305+            _cputype=armv7
   1.306+            if [ "$_ostype" = "linux-android" ]; then
   1.307+                _ostype=linux-androideabi
   1.308+            else
   1.309+                _ostype="${_ostype}eabihf"
   1.310+            fi
   1.311+            ;;
   1.312+
   1.313+        aarch64 | arm64)
   1.314+            _cputype=aarch64
   1.315+            ;;
   1.316+
   1.317+        x86_64 | x86-64 | x64 | amd64)
   1.318+            _cputype=x86_64
   1.319+            ;;
   1.320+
   1.321+        mips)
   1.322+            _cputype=$(get_endianness mips '' el)
   1.323+            ;;
   1.324+
   1.325+        mips64)
   1.326+            if [ "$_bitness" -eq 64 ]; then
   1.327+                # only n64 ABI is supported for now
   1.328+                _ostype="${_ostype}abi64"
   1.329+                _cputype=$(get_endianness mips64 '' el)
   1.330+            fi
   1.331+            ;;
   1.332+
   1.333+        ppc)
   1.334+            _cputype=powerpc
   1.335+            ;;
   1.336+
   1.337+        ppc64)
   1.338+            _cputype=powerpc64
   1.339+            ;;
   1.340+
   1.341+        ppc64le)
   1.342+            _cputype=powerpc64le
   1.343+            ;;
   1.344+
   1.345+        s390x)
   1.346+            _cputype=s390x
   1.347+            ;;
   1.348+        riscv64)
   1.349+            _cputype=riscv64gc
   1.350+            ;;
   1.351+        loongarch64)
   1.352+            _cputype=loongarch64
   1.353+            ;;
   1.354+        *)
   1.355+            err "unknown CPU type: $_cputype"
   1.356+
   1.357+    esac
   1.358+
   1.359+    # Detect 64-bit linux with 32-bit userland
   1.360+    if [ "${_ostype}" = unknown-linux-gnu ] && [ "${_bitness}" -eq 32 ]; then
   1.361+        case $_cputype in
   1.362+            x86_64)
   1.363+                if [ -n "${CPUTYPE:-}" ]; then
   1.364+                    _cputype="$CPUTYPE"
   1.365+                else {
   1.366+                    # 32-bit executable for amd64 = x32
   1.367+                    if is_host_amd64_elf; then {
   1.368+                         echo "This host is running an x32 userland; as it stands, x32 support is poor," 1>&2
   1.369+                         echo "and there isn't a native toolchain -- you will have to install" 1>&2
   1.370+                         echo "multiarch compatibility with i686 and/or amd64, then select one" 1>&2
   1.371+                         echo "by re-running this script with the CPUTYPE environment variable" 1>&2
   1.372+                         echo "set to i686 or x86_64, respectively." 1>&2
   1.373+                         exit 1
   1.374+                    }; else
   1.375+                        _cputype=i686
   1.376+                    fi
   1.377+                }; fi
   1.378+                ;;
   1.379+            mips64)
   1.380+                _cputype=$(get_endianness mips '' el)
   1.381+                ;;
   1.382+            powerpc64)
   1.383+                _cputype=powerpc
   1.384+                ;;
   1.385+            aarch64)
   1.386+                _cputype=armv7
   1.387+                if [ "$_ostype" = "linux-android" ]; then
   1.388+                    _ostype=linux-androideabi
   1.389+                else
   1.390+                    _ostype="${_ostype}eabihf"
   1.391+                fi
   1.392+                ;;
   1.393+            riscv64gc)
   1.394+                err "riscv64 with 32-bit userland unsupported"
   1.395+                ;;
   1.396+        esac
   1.397+    fi
   1.398+
   1.399+    if [ "$_ostype" = "unknown-linux-gnueabihf" ] && [ "$_cputype" = armv7 ]; then
   1.400+        if ensure grep '^Features' /proc/cpuinfo | grep -q -v neon; then
   1.401+            # At least one processor does not have NEON.
   1.402+            _cputype=arm
   1.403+        fi
   1.404+    fi
   1.405+
   1.406+    _arch="${_cputype}-${_ostype}"
   1.407+
   1.408+    RETVAL="$_arch"
   1.409+}
   1.410+
   1.411+say() {
   1.412+    printf 'compiler.company: %s\n' "$1"
   1.413+}
   1.414+
   1.415+err() {
   1.416+    say "$1" >&2
   1.417+    exit 1
   1.418+}
   1.419+
   1.420+need_cmd() {
   1.421+    if ! check_cmd "$1"; then
   1.422+        err "need '$1' (command not found)"
   1.423+    fi
   1.424+}
   1.425+
   1.426+check_cmd() {
   1.427+    command -v "$1" > /dev/null 2>&1
   1.428+}
   1.429+
   1.430+assert_nz() {
   1.431+    if [ -z "$1" ]; then err "assert_nz $2"; fi
   1.432+}
   1.433+
   1.434+# Run a command that should never fail. If the command fails execution
   1.435+# will immediately terminate with an error showing the failing
   1.436+# command.
   1.437+ensure() {
   1.438+    if ! "$@"; then err "command failed: $*"; fi
   1.439+}
   1.440+
   1.441+# This is just for indicating that commands' results are being
   1.442+# intentionally ignored. Usually, because it's being executed
   1.443+# as part of error handling.
   1.444+ignore() {
   1.445+    "$@"
   1.446+}
   1.447+
   1.448+# This wraps curl or wget. Try curl first, if not installed,
   1.449+# use wget instead.
   1.450+downloader() {
   1.451+    local _dld
   1.452+    local _ciphersuites
   1.453+    local _err
   1.454+    local _status
   1.455+    local _retry
   1.456+    if check_cmd curl; then
   1.457+        _dld=curl
   1.458+    elif check_cmd wget; then
   1.459+        _dld=wget
   1.460+    else
   1.461+        _dld='curl or wget' # to be used in error message of need_cmd
   1.462+    fi
   1.463+
   1.464+    if [ "$1" = --check ]; then
   1.465+        need_cmd "$_dld"
   1.466+    elif [ "$_dld" = curl ]; then
   1.467+        check_curl_for_retry_support
   1.468+        _retry="$RETVAL"
   1.469+        get_ciphersuites_for_curl
   1.470+        _ciphersuites="$RETVAL"
   1.471+        if [ -n "$_ciphersuites" ]; then
   1.472+            _err=$(curl $_retry --proto '=https' --tlsv1.2 --ciphers "$_ciphersuites" --silent --show-error --fail --location "$1" --output "$2" 2>&1)
   1.473+            _status=$?
   1.474+        else
   1.475+            echo "Warning: Not enforcing strong cipher suites for TLS, this is potentially less secure"
   1.476+            if ! check_help_for "$3" curl --proto --tlsv1.2; then
   1.477+                echo "Warning: Not enforcing TLS v1.2, this is potentially less secure"
   1.478+                _err=$(curl $_retry --silent --show-error --fail --location "$1" --output "$2" 2>&1)
   1.479+                _status=$?
   1.480+            else
   1.481+                _err=$(curl $_retry --proto '=https' --tlsv1.2 --silent --show-error --fail --location "$1" --output "$2" 2>&1)
   1.482+                _status=$?
   1.483+            fi
   1.484+        fi
   1.485+        if [ -n "$_err" ]; then
   1.486+            echo "$_err" >&2
   1.487+            if echo "$_err" | grep -q 404$; then
   1.488+                err "installer for platform '$3' not found, this may be unsupported"
   1.489+            fi
   1.490+        fi
   1.491+        return $_status
   1.492+    elif [ "$_dld" = wget ]; then
   1.493+        if [ "$(wget -V 2>&1|head -2|tail -1|cut -f1 -d" ")" = "BusyBox" ]; then
   1.494+            echo "Warning: using the BusyBox version of wget.  Not enforcing strong cipher suites for TLS or TLS v1.2, this is potentially less secure"
   1.495+            _err=$(wget "$1" -O "$2" 2>&1)
   1.496+            _status=$?
   1.497+        else
   1.498+            get_ciphersuites_for_wget
   1.499+            _ciphersuites="$RETVAL"
   1.500+            if [ -n "$_ciphersuites" ]; then
   1.501+                _err=$(wget --https-only --secure-protocol=TLSv1_2 --ciphers "$_ciphersuites" "$1" -O "$2" 2>&1)
   1.502+                _status=$?
   1.503+            else
   1.504+                echo "Warning: Not enforcing strong cipher suites for TLS, this is potentially less secure"
   1.505+                if ! check_help_for "$3" wget --https-only --secure-protocol; then
   1.506+                    echo "Warning: Not enforcing TLS v1.2, this is potentially less secure"
   1.507+                    _err=$(wget "$1" -O "$2" 2>&1)
   1.508+                    _status=$?
   1.509+                else
   1.510+                    _err=$(wget --https-only --secure-protocol=TLSv1_2 "$1" -O "$2" 2>&1)
   1.511+                    _status=$?
   1.512+                fi
   1.513+            fi
   1.514+        fi
   1.515+        if [ -n "$_err" ]; then
   1.516+            echo "$_err" >&2
   1.517+            if echo "$_err" | grep -q ' 404 Not Found$'; then
   1.518+                err "installer for platform '$3' not found, this may be unsupported"
   1.519+            fi
   1.520+        fi
   1.521+        return $_status
   1.522+    else
   1.523+        err "Unknown downloader"   # should not reach here
   1.524+    fi
   1.525+}
   1.526+
   1.527+check_help_for() {
   1.528+    local _arch
   1.529+    local _cmd
   1.530+    local _arg
   1.531+    _arch="$1"
   1.532+    shift
   1.533+    _cmd="$1"
   1.534+    shift
   1.535+
   1.536+    local _category
   1.537+    if "$_cmd" --help | grep -q 'For all options use the manual or "--help all".'; then
   1.538+      _category="all"
   1.539+    else
   1.540+      _category=""
   1.541+    fi
   1.542+
   1.543+    case "$_arch" in
   1.544+
   1.545+        *darwin*)
   1.546+        if check_cmd sw_vers; then
   1.547+            case $(sw_vers -productVersion) in
   1.548+                10.*)
   1.549+                    # If we're running on macOS, older than 10.13, then we always
   1.550+                    # fail to find these options to force fallback
   1.551+                    if [ "$(sw_vers -productVersion | cut -d. -f2)" -lt 13 ]; then
   1.552+                        # Older than 10.13
   1.553+                        echo "Warning: Detected macOS platform older than 10.13"
   1.554+                        return 1
   1.555+                    fi
   1.556+                    ;;
   1.557+                11.*)
   1.558+                    # We assume Big Sur will be OK for now
   1.559+                    ;;
   1.560+                *)
   1.561+                    # Unknown product version, warn and continue
   1.562+                    echo "Warning: Detected unknown macOS major version: $(sw_vers -productVersion)"
   1.563+                    echo "Warning TLS capabilities detection may fail"
   1.564+                    ;;
   1.565+            esac
   1.566+        fi
   1.567+        ;;
   1.568+
   1.569+    esac
   1.570+
   1.571+    for _arg in "$@"; do
   1.572+        if ! "$_cmd" --help "$_category" | grep -q -- "$_arg"; then
   1.573+            return 1
   1.574+        fi
   1.575+    done
   1.576+
   1.577+    true # not strictly needed
   1.578+}
   1.579+
   1.580+# Check if curl supports the --retry flag, then pass it to the curl invocation.
   1.581+check_curl_for_retry_support() {
   1.582+    local _retry_supported=""
   1.583+    # "unspecified" is for arch, allows for possibility old OS using macports, homebrew, etc.
   1.584+    if check_help_for "notspecified" "curl" "--retry"; then
   1.585+        _retry_supported="--retry 3"
   1.586+        if check_help_for "notspecified" "curl" "--continue-at"; then
   1.587+            # "-C -" tells curl to automatically find where to resume the download when retrying.
   1.588+            _retry_supported="--retry 3 -C -"
   1.589+        fi
   1.590+    fi
   1.591+
   1.592+    RETVAL="$_retry_supported"
   1.593+}
   1.594+
   1.595+# Return cipher suite string specified by user, otherwise return strong TLS 1.2-1.3 cipher suites
   1.596+# if support by local tools is detected. Detection currently supports these curl backends:
   1.597+# GnuTLS and OpenSSL (possibly also LibreSSL and BoringSSL). Return value can be empty.
   1.598+get_ciphersuites_for_curl() {
   1.599+    if [ -n "${COMPANY_TLS_CIPHERSUITES-}" ]; then
   1.600+        # user specified custom cipher suites, assume they know what they're doing
   1.601+        RETVAL="$COMPANY_TLS_CIPHERSUITES"
   1.602+        return
   1.603+    fi
   1.604+
   1.605+    local _openssl_syntax="no"
   1.606+    local _gnutls_syntax="no"
   1.607+    local _backend_supported="yes"
   1.608+    if curl -V | grep -q ' OpenSSL/'; then
   1.609+        _openssl_syntax="yes"
   1.610+    elif curl -V | grep -iq ' LibreSSL/'; then
   1.611+        _openssl_syntax="yes"
   1.612+    elif curl -V | grep -iq ' BoringSSL/'; then
   1.613+        _openssl_syntax="yes"
   1.614+    elif curl -V | grep -iq ' GnuTLS/'; then
   1.615+        _gnutls_syntax="yes"
   1.616+    else
   1.617+        _backend_supported="no"
   1.618+    fi
   1.619+
   1.620+    local _args_supported="no"
   1.621+    if [ "$_backend_supported" = "yes" ]; then
   1.622+        # "unspecified" is for arch, allows for possibility old OS using macports, homebrew, etc.
   1.623+        if check_help_for "notspecified" "curl" "--tlsv1.2" "--ciphers" "--proto"; then
   1.624+            _args_supported="yes"
   1.625+        fi
   1.626+    fi
   1.627+
   1.628+    local _cs=""
   1.629+    if [ "$_args_supported" = "yes" ]; then
   1.630+        if [ "$_openssl_syntax" = "yes" ]; then
   1.631+            _cs=$(get_strong_ciphersuites_for "openssl")
   1.632+        elif [ "$_gnutls_syntax" = "yes" ]; then
   1.633+            _cs=$(get_strong_ciphersuites_for "gnutls")
   1.634+        fi
   1.635+    fi
   1.636+
   1.637+    RETVAL="$_cs"
   1.638+}
   1.639+
   1.640+# Return cipher suite string specified by user, otherwise return strong TLS 1.2-1.3 cipher suites
   1.641+# if support by local tools is detected. Detection currently supports these wget backends:
   1.642+# GnuTLS and OpenSSL (possibly also LibreSSL and BoringSSL). Return value can be empty.
   1.643+get_ciphersuites_for_wget() {
   1.644+    if [ -n "${COMPANY_TLS_CIPHERSUITES-}" ]; then
   1.645+        # user specified custom cipher suites, assume they know what they're doing
   1.646+        RETVAL="$COMPANY_TLS_CIPHERSUITES"
   1.647+        return
   1.648+    fi
   1.649+
   1.650+    local _cs=""
   1.651+    if wget -V | grep -q '\-DHAVE_LIBSSL'; then
   1.652+        # "unspecified" is for arch, allows for possibility old OS using macports, homebrew, etc.
   1.653+        if check_help_for "notspecified" "wget" "TLSv1_2" "--ciphers" "--https-only" "--secure-protocol"; then
   1.654+            _cs=$(get_strong_ciphersuites_for "openssl")
   1.655+        fi
   1.656+    elif wget -V | grep -q '\-DHAVE_LIBGNUTLS'; then
   1.657+        # "unspecified" is for arch, allows for possibility old OS using macports, homebrew, etc.
   1.658+        if check_help_for "notspecified" "wget" "TLSv1_2" "--ciphers" "--https-only" "--secure-protocol"; then
   1.659+            _cs=$(get_strong_ciphersuites_for "gnutls")
   1.660+        fi
   1.661+    fi
   1.662+
   1.663+    RETVAL="$_cs"
   1.664+}
   1.665+
   1.666+# Return strong TLS 1.2-1.3 cipher suites in OpenSSL or GnuTLS syntax. TLS 1.2
   1.667+# excludes non-ECDHE and non-AEAD cipher suites. DHE is excluded due to bad
   1.668+# DH params often found on servers (see RFC 7919). Sequence matches or is
   1.669+# similar to Firefox 68 ESR with weak cipher suites disabled via about:config.
   1.670+# $1 must be openssl or gnutls.
   1.671+get_strong_ciphersuites_for() {
   1.672+    if [ "$1" = "openssl" ]; then
   1.673+        # OpenSSL is forgiving of unknown values, no problems with TLS 1.3 values on versions that don't support it yet.
   1.674+        echo "TLS_AES_128_GCM_SHA256:TLS_CHACHA20_POLY1305_SHA256:TLS_AES_256_GCM_SHA384:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384"
   1.675+    elif [ "$1" = "gnutls" ]; then
   1.676+        # GnuTLS isn't forgiving of unknown values, so this may require a GnuTLS version that supports TLS 1.3 even if wget doesn't.
   1.677+        # Begin with SECURE128 (and higher) then remove/add to build cipher suites. Produces same 9 cipher suites as OpenSSL but in slightly different order.
   1.678+        echo "SECURE128:-VERS-SSL3.0:-VERS-TLS1.0:-VERS-TLS1.1:-VERS-DTLS-ALL:-CIPHER-ALL:-MAC-ALL:-KX-ALL:+AEAD:+ECDHE-ECDSA:+ECDHE-RSA:+AES-128-GCM:+CHACHA20-POLY1305:+AES-256-GCM"
   1.679+    fi
   1.680+}
   1.681+
   1.682+main "$@" || exit 1