Library/firmware.sh

   1 #!/bin/bash
   2
   3 set -e
   4
   5 shopt -s extglob
   6 shopt -s nullglob
   7
   8 version=$(sw_vers -productVersion)
   9 cpu=$(uname -p)
  10
  11 if [[ ${cpu} == arm || ${cpu} == arm64 ]]; then
  12     data=/var/lib/dpkg
  13     model=hw.machine
  14     arch=iphoneos-arm
  15 else
  16     data=/Library/Cydia/dpkg
  17     model=hw.model
  18     arch=cydia
  19 fi
  20
  21 model=$(sysctl -n "${model}")
  22
  23 status=${data}/status
  24
  25 function lower() {
  26     sed -e 'y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/'
  27 }
  28
  29 # Generate New Package {{{
  30 function pseudo() {
  31     local package=$1 version=$2 description=$3 name=$4
  32     echo "/." >"${data}"/info/"${package}".list
  33
  34     cat <<EOF
  35 Package: ${package}
  36 Essential: yes
  37 Status: install ok installed
  38 Priority: required
  39 Section: System
  40 Installed-Size: 0
  41 Architecture: ${arch}
  42 Version: ${version}
  43 Description: ${description}
  44 Maintainer: Jay Freeman (saurik) <saurik@saurik.com>
  45 Tag: role::cydia
  46 EOF
  47
  48     [[ -n ${name} ]] && echo "Name: ${name}"
  49     echo
  50 }
  51 # }}}
  52
  53 before=$(stat -c '%i-%Y' "${status}")
  54
  55 output=$(mktemp "${data}"/status-tmp.XXXXXX)
  56 chmod 644 "${output}"
  57 xxxxxx=${output##*/status-tmp.}
  58 rm -f "${data}"/status-tmp.!("${xxxxxx}")
  59
  60 {
  61
  62 # Delete Old Packages {{{
  63     unset firmware
  64     unset blank
  65
  66     while IFS= read -r line; do
  67         #echo "#${firmware+@}/${blank+@} ${line}" 1>&2
  68
  69         if [[ ${line} == '' && "${blank+@}" ]]; then
  70             continue
  71         else
  72             unset blank
  73         fi
  74
  75         if [[ ${line} == "Package: "@(firmware|gsc.*|cy+*) ]]; then
  76             firmware=
  77         elif [[ ${line} == '' ]]; then
  78             blank=
  79         fi
  80
  81         if [[ "${firmware+@}" ]]; then
  82             if [[ "${blank+@}" ]]; then
  83                 unset firmware
  84             fi
  85             continue
  86         fi
  87
  88         #echo "${firmware+@}/${blank+@} ${line}" 1>&2
  89         echo "${line}"
  90     done <"${status}"
  91
  92     #echo "#${firmware+@}/${blank+@} EOF" 1>&2
  93     if ! [[ "${blank+@}" || "${firmware+@}" ]]; then
  94         echo
  95     fi
  96 # }}}
  97
  98     if [[ ${cpu} == arm || ${cpu} == arm64 ]]; then
  99         pseudo "firmware" "${version}" "almost impressive Apple frameworks" "iOS Firmware"
 100
 101         while [[ 1 ]]; do
 102             gssc=$(gssc 2>&1)
 103             if [[ ${gssc} != *'(null)'* ]]; then
 104                 break
 105             fi
 106             sleep 1
 107         done
 108
 109         echo "${gssc}" | sed -re '
 110             /^    [^ ]* = [0-9.]*;$/ ! d;
 111             s/^    ([^ ]*) = ([0-9.]*);$/\1 \2/;
 112             s/([A-Z])/-\L\1/g;
 113             s/^"([^ ]*)"/\1/;
 114             s/^-//;
 115             / 0$/ d;
 116         ' | while read -r name value; do case "${name}" in
 117             (ipad) for name in ipad wildcat; do
 118                 pseudo "gsc.${name}" "${value}" "this device has a very large screen" "iPad"
 119             done;;
 120
 121             (*)
 122                 pseudo "gsc.${name}" "${value}" "virtual GraphicsServices dependency"
 123             ;;
 124         esac; done
 125     fi
 126
 127     if [[ ${cpu} == arm || ${cpu} == arm64 ]]; then
 128         os=ios
 129     else
 130         os=macosx
 131     fi
 132
 133     pseudo "cy+os.${os}" "${version}" "virtual operating system dependency"
 134     pseudo "cy+cpu.${cpu}" "0" "virtual CPU dependency"
 135
 136     name=${model%%*([0-9]),*([0-9])}
 137     version=${model#${name}}
 138     name=$(lower <<<${name})
 139     version=${version/,/.}
 140     pseudo "cy+model.${name}" "${version}" "virtual model dependency"
 141
 142     pseudo "cy+kernel.$(lower <<<$(sysctl -n kern.ostype))" "$(sysctl -n kern.osrelease)" "virtual kernel dependency"
 143
 144     pseudo "cy+lib.corefoundation" "$(/usr/libexec/cydia/cfversion)" "virtual corefoundation dependency"
 145
 146 } >"${output}"
 147
 148 # XXX: this is a poor replacement for flock
 149 test "${before}" = "$(stat -c '%i-%Y' "${status}")"
 150 mv -f "${output}" "${status}"
 151
 152 if [[ ${cpu} == arm || ${cpu} == arm64 ]]; then
 153     if [[ ! -h /User && -d /User ]]; then
 154         cp -afT /User /var/mobile
 155     fi && rm -rf /User && ln -s "/var/mobile" /User
 156
 157     echo 6 >/var/lib/cydia/firmware.ver
 158 fi