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git-extra: disable CBC ciphers in ssh_config again #421

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Jun 2, 2022
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git-extra: disable CBC ciphers in ssh_config again #421

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8 changes: 3 additions & 5 deletions git-extra/git-extra.install.in
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Original file line number Diff line number Diff line change
Expand Up @@ -187,11 +187,9 @@ test -d "$TMPDIR" || test ! -d "$TMP" || {\
! grep -q '^Ciphers [a-z].*cbc' /etc/ssh/ssh_config ||
sed -i -e 's/^Ciphers [a-z].*cbc/# &/' /etc/ssh/ssh_config

grep -q '^Ciphers\s\++' /etc/ssh/ssh_config ||
printf '%s\n%s\n' \
'# Added by git-extra' \
'Ciphers +aes128-cbc,3des-cbc,aes256-cbc,aes192-cbc' \
>>/etc/ssh/ssh_config
# Revert change by prior versions of git-extra.
! grep -q '^Ciphers\s\++' /etc/ssh/ssh_config ||
sed -i -e '/^# Added by git-extra/{N;/^\(.*\n\)\?Ciphers +[a-z].*cbc/d}' /etc/ssh/ssh_config

grep -q '^Host\s\+ssh\.dev\.azure\.com' /etc/ssh/ssh_config ||
printf '%s\n%s\n\t%s\n\t%s\n' \
Expand Down