feat: Remove non-printable characters (#228)

Author: kroese

Dockerfile

@@ -10,7 +10,7 @@ RUN apk --update --no-cache add unzip && \
     rm -rf /tmp/* /var/tmp/* /var/cache/apk/*
 
 FROM scratch AS runner
-COPY --from=qemux/qemu:7.04 / /
+COPY --from=qemux/qemu:7.05 / /
 
 ARG VERSION_ARG="0.0"
 ARG VERSION_KVM_OPENCORE="v21"

src/boot.sh

@@ -168,13 +168,14 @@ else
 fi
 
 CLOCKSOURCE="tsc"
-[[ "${ARCH,,}" == "arm64" ]] && CLOCKSOURCE="arch_sys_counter"
+[[ "${ARCH,,}" == "arm64" ]] && CLOCKSOURCE="arch_sys_counter"
 CLOCK="/sys/devices/system/clocksource/clocksource0/current_clocksource"
 
 if [ ! -f "$CLOCK" ]; then
   warn "file \"$CLOCK\" cannot not found?"
 else
   result=$(<"$CLOCK")
+  result="${result//[![:print:]]/}"
   case "${result,,}" in
     "${CLOCKSOURCE,,}" ) ;;
     "kvm-clock" )

src/install.sh

@@ -154,10 +154,12 @@ generateID() {
 
   [ -n "$UUID" ] && return 0
   [ -s "$file" ] && UUID=$(<"$file")
+  UUID="${UUID//[![:print:]]/}"
   [ -n "$UUID" ] && return 0
 
   UUID=$(cat /proc/sys/kernel/random/uuid 2> /dev/null || uuidgen --random)
   UUID="${UUID^^}"
+  UUID="${UUID//[![:print:]]/}"
   echo "$UUID" > "$file"
 
   return 0
@@ -169,6 +171,7 @@ generateAddress() {
 
   [ -n "$MAC" ] && return 0
   [ -s "$file" ] && MAC=$(<"$file")
+  MAC="${MAC//[![:print:]]/}"
   [ -n "$MAC" ] && return 0
 
   # Generate Apple MAC address based on Docker container ID in hostname
@@ -187,6 +190,8 @@ generateSerial() {
   [ -n "$SN" ] && [ -n "$MLB" ] && return 0
   [ -s "$file" ] && SN=$(<"$file")
   [ -s "$file2" ] && MLB=$(<"$file2")
+  SN="${SN//[![:print:]]/}"
+  MLB="${MLB//[![:print:]]/}"
   [ -n "$SN" ] && [ -n "$MLB" ] && return 0
 
   # Generate unique serial numbers for machine
@@ -213,6 +218,7 @@ fi
 STORED_VERSION=""
 if [ -f "$BASE_VERSION" ]; then
   STORED_VERSION=$(<"$BASE_VERSION")
+  STORED_VERSION="${STORED_VERSION//[![:print:]]/}"
 fi
 
 if [ "$VERSION" != "$STORED_VERSION" ]; then