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Improve security of avrdude by eliminating the use of well-known names. (#9026)

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* Improve security by eliminating the use of well-known names.

* Add an additional $ so the shell expands $TMP1 and $TMP2

Co-authored-by: Joel Challis <git@zvecr.com>

Co-authored-by: Joel Challis <git@zvecr.com>
This commit is contained in:
Zach White 2020-05-09 20:08:13 -07:00 committed by GitHub
parent 3beda5c16e
commit 640d12d070
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GPG key ID: 4AEE18F83AFDEB23
1 changed files with 8 additions and 5 deletions
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13
tmk_core/avr.mk
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@ -156,17 +156,20 @@ dfu-split-right: $(BUILD_DIR)/$(TARGET).hex cpfirmware check-size
define EXEC_AVRDUDE
USB= ;\
if $(GREP) -q -s Microsoft /proc/version; then \
echo 'ERROR: AVR flashing cannot be automated within the Windows Subsystem for Linux (WSL) currently. Instead, take the .hex file generated and flash it using AVRDUDE, AVRDUDESS, or XLoader.'; \
echo 'ERROR: AVR flashing cannot be automated within the Windows Subsystem for Linux (WSL) currently. Instead, take the .hex file generated and flash it using QMK Toolbox, AVRDUDE, AVRDUDESS, or XLoader.'; \
else \
printf "Detecting USB port, reset your controller now."; \
ls /dev/tty* > /tmp/1; \
TMP1=`mktemp`; \
TMP2=`mktemp`; \
ls /dev/tty* > $$TMP1; \
while [ -z $$USB ]; do \
sleep 0.5; \
printf "."; \
ls /dev/tty* > /tmp/2; \
USB=`comm -13 /tmp/1 /tmp/2 | $(GREP) -o '/dev/tty.*'`; \
mv /tmp/2 /tmp/1; \
ls /dev/tty* > $$TMP2; \
USB=`comm -13 $$TMP1 $$TMP2 | $(GREP) -o '/dev/tty.*'`; \
mv $$TMP2 $$TMP1; \
done; \
rm $$TMP2 $$TMP1; \
echo ""; \
echo "Device $$USB has appeared; assuming it is the controller."; \
if $(GREP) -q -s 'MINGW\|MSYS' /proc/version; then \