diff --git a/rust.sh b/rust.sh deleted file mode 100644 index 1ebc814..0000000 --- a/rust.sh +++ /dev/null @@ -1,700 +0,0 @@ -#!/bin/sh -# shellcheck shell=dash - -# This is just a little script that can be downloaded from the internet to -# install rustup. It just does platform detection, downloads the installer -# and runs it. - -# It runs on Unix shells like {a,ba,da,k,z}sh. It uses the common `local` -# extension. Note: Most shells limit `local` to 1 var per line, contra bash. - -if [ "$KSH_VERSION" = 'Version JM 93t+ 2010-03-05' ]; then - # The version of ksh93 that ships with many illumos systems does not - # support the "local" extension. Print a message rather than fail in - # subtle ways later on: - echo 'rustup does not work with this ksh93 version; please try bash!' >&2 - exit 1 -fi - - -set -u - -# If RUSTUP_UPDATE_ROOT is unset or empty, default it. -RUSTUP_UPDATE_ROOT="${RUSTUP_UPDATE_ROOT:-https://static.rust-lang.org/rustup}" - -#XXX: If you change anything here, please make the same changes in setup_mode.rs -usage() { - cat 1>&2 < Choose a default host triple - --default-toolchain Choose a default toolchain to install - --default-toolchain none Do not install any toolchains - --profile [minimal|default|complete] Choose a profile - -c, --component ... Component name to also install - -t, --target ... Target name to also install -EOF -} - -main() { - downloader --check - need_cmd uname - need_cmd mktemp - need_cmd chmod - need_cmd mkdir - need_cmd rm - need_cmd rmdir - - get_architecture || return 1 - local _arch="$RETVAL" - assert_nz "$_arch" "arch" - - local _ext="" - case "$_arch" in - *windows*) - _ext=".exe" - ;; - esac - - local _url="${RUSTUP_UPDATE_ROOT}/dist/${_arch}/rustup-init${_ext}" - - local _dir - _dir="$(ensure mktemp -d)" - local _file="${_dir}/rustup-init${_ext}" - - local _ansi_escapes_are_valid=false - if [ -t 2 ]; then - if [ "${TERM+set}" = 'set' ]; then - case "$TERM" in - xterm*|rxvt*|urxvt*|linux*|vt*) - _ansi_escapes_are_valid=true - ;; - esac - fi - fi - - # check if we have to use /dev/tty to prompt the user - local need_tty=yes - for arg in "$@"; do - case "$arg" in - --help) - usage - exit 0 - ;; - *) - OPTIND=1 - if [ "${arg%%--*}" = "" ]; then - # Long option (other than --help); - # don't attempt to interpret it. - continue - fi - while getopts :hy sub_arg "$arg"; do - case "$sub_arg" in - h) - usage - exit 0 - ;; - y) - # user wants to skip the prompt -- - # we don't need /dev/tty - need_tty=no - ;; - *) - ;; - esac - done - ;; - esac - done - - if $_ansi_escapes_are_valid; then - printf "\33[1minfo:\33[0m downloading installer\n" 1>&2 - else - printf '%s\n' 'info: downloading installer' 1>&2 - fi - - ensure mkdir -p "$_dir" - ensure downloader "$_url" "$_file" "$_arch" - ensure chmod u+x "$_file" - if [ ! -x "$_file" ]; then - printf '%s\n' "Cannot execute $_file (likely because of mounting /tmp as noexec)." 1>&2 - printf '%s\n' "Please copy the file to a location where you can execute binaries and run ./rustup-init${_ext}." 1>&2 - exit 1 - fi - - if [ "$need_tty" = "yes" ] && [ ! -t 0 ]; then - # The installer is going to want to ask for confirmation by - # reading stdin. This script was piped into `sh` though and - # doesn't have stdin to pass to its children. Instead we're going - # to explicitly connect /dev/tty to the installer's stdin. - if [ ! -t 1 ]; then - err "Unable to run interactively. Run with -y to accept defaults, --help for additional options" - fi - - ignore "$_file" "$@" < /dev/tty - else - ignore "$_file" "$@" - fi - - local _retval=$? - - ignore rm "$_file" - ignore rmdir "$_dir" - - return "$_retval" -} - -check_proc() { - # Check for /proc by looking for the /proc/self/exe link - # This is only run on Linux - if ! test -L /proc/self/exe ; then - err "fatal: Unable to find /proc/self/exe. Is /proc mounted? Installation cannot proceed without /proc." - fi -} - -get_bitness() { - need_cmd head - # Architecture detection without dependencies beyond coreutils. - # ELF files start out "\x7fELF", and the following byte is - # 0x01 for 32-bit and - # 0x02 for 64-bit. - # The printf builtin on some shells like dash only supports octal - # escape sequences, so we use those. - local _current_exe_head - _current_exe_head=$(head -c 5 /proc/self/exe ) - if [ "$_current_exe_head" = "$(printf '\177ELF\001')" ]; then - echo 32 - elif [ "$_current_exe_head" = "$(printf '\177ELF\002')" ]; then - echo 64 - else - err "unknown platform bitness" - fi -} - -is_host_amd64_elf() { - need_cmd head - need_cmd tail - # ELF e_machine detection without dependencies beyond coreutils. - # Two-byte field at offset 0x12 indicates the CPU, - # but we're interested in it being 0x3E to indicate amd64, or not that. - local _current_exe_machine - _current_exe_machine=$(head -c 19 /proc/self/exe | tail -c 1) - [ "$_current_exe_machine" = "$(printf '\076')" ] -} - -get_endianness() { - local cputype=$1 - local suffix_eb=$2 - local suffix_el=$3 - - # detect endianness without od/hexdump, like get_bitness() does. - need_cmd head - need_cmd tail - - local _current_exe_endianness - _current_exe_endianness="$(head -c 6 /proc/self/exe | tail -c 1)" - if [ "$_current_exe_endianness" = "$(printf '\001')" ]; then - echo "${cputype}${suffix_el}" - elif [ "$_current_exe_endianness" = "$(printf '\002')" ]; then - echo "${cputype}${suffix_eb}" - else - err "unknown platform endianness" - fi -} - -get_architecture() { - local _ostype _cputype _bitness _arch _clibtype - _ostype="$(uname -s)" - _cputype="$(uname -m)" - _clibtype="gnu" - - if [ "$_ostype" = Linux ]; then - if [ "$(uname -o)" = Android ]; then - _ostype=Android - fi - if ldd --version 2>&1 | grep -q 'musl'; then - _clibtype="musl" - fi - fi - - if [ "$_ostype" = Darwin ] && [ "$_cputype" = i386 ]; then - # Darwin `uname -m` lies - if sysctl hw.optional.x86_64 | grep -q ': 1'; then - _cputype=x86_64 - fi - fi - - if [ "$_ostype" = SunOS ]; then - # Both Solaris and illumos presently announce as "SunOS" in "uname -s" - # so use "uname -o" to disambiguate. We use the full path to the - # system uname in case the user has coreutils uname first in PATH, - # which has historically sometimes printed the wrong value here. - if [ "$(/usr/bin/uname -o)" = illumos ]; then - _ostype=illumos - fi - - # illumos systems have multi-arch userlands, and "uname -m" reports the - # machine hardware name; e.g., "i86pc" on both 32- and 64-bit x86 - # systems. Check for the native (widest) instruction set on the - # running kernel: - if [ "$_cputype" = i86pc ]; then - _cputype="$(isainfo -n)" - fi - fi - - case "$_ostype" in - - Android) - _ostype=linux-android - ;; - - Linux) - check_proc - _ostype=unknown-linux-$_clibtype - _bitness=$(get_bitness) - ;; - - FreeBSD) - _ostype=unknown-freebsd - ;; - - NetBSD) - _ostype=unknown-netbsd - ;; - - DragonFly) - _ostype=unknown-dragonfly - ;; - - Darwin) - _ostype=apple-darwin - ;; - - illumos) - _ostype=unknown-illumos - ;; - - MINGW* | MSYS* | CYGWIN* | Windows_NT) - _ostype=pc-windows-gnu - ;; - - *) - err "unrecognized OS type: $_ostype" - ;; - - esac - - case "$_cputype" in - - i386 | i486 | i686 | i786 | x86) - _cputype=i686 - ;; - - xscale | arm) - _cputype=arm - if [ "$_ostype" = "linux-android" ]; then - _ostype=linux-androideabi - fi - ;; - - armv6l) - _cputype=arm - if [ "$_ostype" = "linux-android" ]; then - _ostype=linux-androideabi - else - _ostype="${_ostype}eabihf" - fi - ;; - - armv7l | armv8l) - _cputype=armv7 - if [ "$_ostype" = "linux-android" ]; then - _ostype=linux-androideabi - else - _ostype="${_ostype}eabihf" - fi - ;; - - aarch64 | arm64) - _cputype=aarch64 - ;; - - x86_64 | x86-64 | x64 | amd64) - _cputype=x86_64 - ;; - - mips) - _cputype=$(get_endianness mips '' el) - ;; - - mips64) - if [ "$_bitness" -eq 64 ]; then - # only n64 ABI is supported for now - _ostype="${_ostype}abi64" - _cputype=$(get_endianness mips64 '' el) - fi - ;; - - ppc) - _cputype=powerpc - ;; - - ppc64) - _cputype=powerpc64 - ;; - - ppc64le) - _cputype=powerpc64le - ;; - - s390x) - _cputype=s390x - ;; - riscv64) - _cputype=riscv64gc - ;; - *) - err "unknown CPU type: $_cputype" - - esac - - # Detect 64-bit linux with 32-bit userland - if [ "${_ostype}" = unknown-linux-gnu ] && [ "${_bitness}" -eq 32 ]; then - case $_cputype in - x86_64) - if [ -n "${RUSTUP_CPUTYPE:-}" ]; then - _cputype="$RUSTUP_CPUTYPE" - else { - # 32-bit executable for amd64 = x32 - if is_host_amd64_elf; then { - echo "This host is running an x32 userland; as it stands, x32 support is poor," 1>&2 - echo "and there isn't a native toolchain -- you will have to install" 1>&2 - echo "multiarch compatibility with i686 and/or amd64, then select one" 1>&2 - echo "by re-running this script with the RUSTUP_CPUTYPE environment variable" 1>&2 - echo "set to i686 or x86_64, respectively." 1>&2 - echo 1>&2 - echo "You will be able to add an x32 target after installation by running" 1>&2 - echo " rustup target add x86_64-unknown-linux-gnux32" 1>&2 - exit 1 - }; else - _cputype=i686 - fi - }; fi - ;; - mips64) - _cputype=$(get_endianness mips '' el) - ;; - powerpc64) - _cputype=powerpc - ;; - aarch64) - _cputype=armv7 - if [ "$_ostype" = "linux-android" ]; then - _ostype=linux-androideabi - else - _ostype="${_ostype}eabihf" - fi - ;; - riscv64gc) - err "riscv64 with 32-bit userland unsupported" - ;; - esac - fi - - # Detect armv7 but without the CPU features Rust needs in that build, - # and fall back to arm. - # See https://github.com/rust-lang/rustup.rs/issues/587. - if [ "$_ostype" = "unknown-linux-gnueabihf" ] && [ "$_cputype" = armv7 ]; then - if ensure grep '^Features' /proc/cpuinfo | grep -q -v neon; then - # At least one processor does not have NEON. - _cputype=arm - fi - fi - - _arch="${_cputype}-${_ostype}" - - RETVAL="$_arch" -} - -say() { - printf 'rustup: %s\n' "$1" -} - -err() { - say "$1" >&2 - exit 1 -} - -need_cmd() { - if ! check_cmd "$1"; then - err "need '$1' (command not found)" - fi -} - -check_cmd() { - command -v "$1" > /dev/null 2>&1 -} - -assert_nz() { - if [ -z "$1" ]; then err "assert_nz $2"; fi -} - -# Run a command that should never fail. If the command fails execution -# will immediately terminate with an error showing the failing -# command. -ensure() { - if ! "$@"; then err "command failed: $*"; fi -} - -# This is just for indicating that commands' results are being -# intentionally ignored. Usually, because it's being executed -# as part of error handling. -ignore() { - "$@" -} - -# This wraps curl or wget. Try curl first, if not installed, -# use wget instead. -downloader() { - local _dld - local _ciphersuites - local _err - local _status - local _retry - if check_cmd curl; then - _dld=curl - elif check_cmd wget; then - _dld=wget - else - _dld='curl or wget' # to be used in error message of need_cmd - fi - - if [ "$1" = --check ]; then - need_cmd "$_dld" - elif [ "$_dld" = curl ]; then - check_curl_for_retry_support - _retry="$RETVAL" - get_ciphersuites_for_curl - _ciphersuites="$RETVAL" - if [ -n "$_ciphersuites" ]; then - _err=$(curl $_retry --proto '=https' --tlsv1.2 --ciphers "$_ciphersuites" --silent --show-error --fail --location "$1" --output "$2" 2>&1) - _status=$? - else - echo "Warning: Not enforcing strong cipher suites for TLS, this is potentially less secure" - if ! check_help_for "$3" curl --proto --tlsv1.2; then - echo "Warning: Not enforcing TLS v1.2, this is potentially less secure" - _err=$(curl $_retry --silent --show-error --fail --location "$1" --output "$2" 2>&1) - _status=$? - else - _err=$(curl $_retry --proto '=https' --tlsv1.2 --silent --show-error --fail --location "$1" --output "$2" 2>&1) - _status=$? - fi - fi - if [ -n "$_err" ]; then - echo "$_err" >&2 - if echo "$_err" | grep -q 404$; then - err "installer for platform '$3' not found, this may be unsupported" - fi - fi - return $_status - elif [ "$_dld" = wget ]; then - if [ "$(wget -V 2>&1|head -2|tail -1|cut -f1 -d" ")" = "BusyBox" ]; then - echo "Warning: using the BusyBox version of wget. Not enforcing strong cipher suites for TLS or TLS v1.2, this is potentially less secure" - _err=$(wget "$1" -O "$2" 2>&1) - _status=$? - else - get_ciphersuites_for_wget - _ciphersuites="$RETVAL" - if [ -n "$_ciphersuites" ]; then - _err=$(wget --https-only --secure-protocol=TLSv1_2 --ciphers "$_ciphersuites" "$1" -O "$2" 2>&1) - _status=$? - else - echo "Warning: Not enforcing strong cipher suites for TLS, this is potentially less secure" - if ! check_help_for "$3" wget --https-only --secure-protocol; then - echo "Warning: Not enforcing TLS v1.2, this is potentially less secure" - _err=$(wget "$1" -O "$2" 2>&1) - _status=$? - else - _err=$(wget --https-only --secure-protocol=TLSv1_2 "$1" -O "$2" 2>&1) - _status=$? - fi - fi - fi - if [ -n "$_err" ]; then - echo "$_err" >&2 - if echo "$_err" | grep -q ' 404 Not Found$'; then - err "installer for platform '$3' not found, this may be unsupported" - fi - fi - return $_status - else - err "Unknown downloader" # should not reach here - fi -} - -check_help_for() { - local _arch - local _cmd - local _arg - _arch="$1" - shift - _cmd="$1" - shift - - local _category - if "$_cmd" --help | grep -q 'For all options use the manual or "--help all".'; then - _category="all" - else - _category="" - fi - - case "$_arch" in - - *darwin*) - if check_cmd sw_vers; then - case $(sw_vers -productVersion) in - 10.*) - # If we're running on macOS, older than 10.13, then we always - # fail to find these options to force fallback - if [ "$(sw_vers -productVersion | cut -d. -f2)" -lt 13 ]; then - # Older than 10.13 - echo "Warning: Detected macOS platform older than 10.13" - return 1 - fi - ;; - 11.*) - # We assume Big Sur will be OK for now - ;; - *) - # Unknown product version, warn and continue - echo "Warning: Detected unknown macOS major version: $(sw_vers -productVersion)" - echo "Warning TLS capabilities detection may fail" - ;; - esac - fi - ;; - - esac - - for _arg in "$@"; do - if ! "$_cmd" --help "$_category" | grep -q -- "$_arg"; then - return 1 - fi - done - - true # not strictly needed -} - -# Check if curl supports the --retry flag, then pass it to the curl invocation. -check_curl_for_retry_support() { - local _retry_supported="" - # "unspecified" is for arch, allows for possibility old OS using macports, homebrew, etc. - if check_help_for "notspecified" "curl" "--retry"; then - _retry_supported="--retry 3" - fi - - RETVAL="$_retry_supported" - -} - -# Return cipher suite string specified by user, otherwise return strong TLS 1.2-1.3 cipher suites -# if support by local tools is detected. Detection currently supports these curl backends: -# GnuTLS and OpenSSL (possibly also LibreSSL and BoringSSL). Return value can be empty. -get_ciphersuites_for_curl() { - if [ -n "${RUSTUP_TLS_CIPHERSUITES-}" ]; then - # user specified custom cipher suites, assume they know what they're doing - RETVAL="$RUSTUP_TLS_CIPHERSUITES" - return - fi - - local _openssl_syntax="no" - local _gnutls_syntax="no" - local _backend_supported="yes" - if curl -V | grep -q ' OpenSSL/'; then - _openssl_syntax="yes" - elif curl -V | grep -iq ' LibreSSL/'; then - _openssl_syntax="yes" - elif curl -V | grep -iq ' BoringSSL/'; then - _openssl_syntax="yes" - elif curl -V | grep -iq ' GnuTLS/'; then - _gnutls_syntax="yes" - else - _backend_supported="no" - fi - - local _args_supported="no" - if [ "$_backend_supported" = "yes" ]; then - # "unspecified" is for arch, allows for possibility old OS using macports, homebrew, etc. - if check_help_for "notspecified" "curl" "--tlsv1.2" "--ciphers" "--proto"; then - _args_supported="yes" - fi - fi - - local _cs="" - if [ "$_args_supported" = "yes" ]; then - if [ "$_openssl_syntax" = "yes" ]; then - _cs=$(get_strong_ciphersuites_for "openssl") - elif [ "$_gnutls_syntax" = "yes" ]; then - _cs=$(get_strong_ciphersuites_for "gnutls") - fi - fi - - RETVAL="$_cs" -} - -# Return cipher suite string specified by user, otherwise return strong TLS 1.2-1.3 cipher suites -# if support by local tools is detected. Detection currently supports these wget backends: -# GnuTLS and OpenSSL (possibly also LibreSSL and BoringSSL). Return value can be empty. -get_ciphersuites_for_wget() { - if [ -n "${RUSTUP_TLS_CIPHERSUITES-}" ]; then - # user specified custom cipher suites, assume they know what they're doing - RETVAL="$RUSTUP_TLS_CIPHERSUITES" - return - fi - - local _cs="" - if wget -V | grep -q '\-DHAVE_LIBSSL'; then - # "unspecified" is for arch, allows for possibility old OS using macports, homebrew, etc. - if check_help_for "notspecified" "wget" "TLSv1_2" "--ciphers" "--https-only" "--secure-protocol"; then - _cs=$(get_strong_ciphersuites_for "openssl") - fi - elif wget -V | grep -q '\-DHAVE_LIBGNUTLS'; then - # "unspecified" is for arch, allows for possibility old OS using macports, homebrew, etc. - if check_help_for "notspecified" "wget" "TLSv1_2" "--ciphers" "--https-only" "--secure-protocol"; then - _cs=$(get_strong_ciphersuites_for "gnutls") - fi - fi - - RETVAL="$_cs" -} - -# Return strong TLS 1.2-1.3 cipher suites in OpenSSL or GnuTLS syntax. TLS 1.2 -# excludes non-ECDHE and non-AEAD cipher suites. DHE is excluded due to bad -# DH params often found on servers (see RFC 7919). Sequence matches or is -# similar to Firefox 68 ESR with weak cipher suites disabled via about:config. -# $1 must be openssl or gnutls. -get_strong_ciphersuites_for() { - if [ "$1" = "openssl" ]; then - # OpenSSL is forgiving of unknown values, no problems with TLS 1.3 values on versions that don't support it yet. - 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" - elif [ "$1" = "gnutls" ]; then - # GnuTLS isn't forgiving of unknown values, so this may require a GnuTLS version that supports TLS 1.3 even if wget doesn't. - # Begin with SECURE128 (and higher) then remove/add to build cipher suites. Produces same 9 cipher suites as OpenSSL but in slightly different order. - echo "SECURE128:-VERS-SSL3.0:-VERS-TLS1.0:-VERS-TLS1.1:-VERS-DTLS-ALL:-CIPHER-ALL:-MAC-ALL:-KX-ALL:+AEAD:+ECDHE-ECDSA:+ECDHE-RSA:+AES-128-GCM:+CHACHA20-POLY1305:+AES-256-GCM" - fi -} - -main "$@" || exit 1