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check exitcode of curl -V because of some issue with ancient versions of curl returning error codes on checking the version number

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Lukas Schauer
2016-01-16 21:50:15 +01:00
parent f7c7d8c599
commit 0af7f388d6
1 changed files with 10 additions and 1 deletions
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11
letsencrypt.sh
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@@ -10,11 +10,20 @@ BASEDIR="${SCRIPTDIR}"
# Check for script dependencies # Check for script dependencies
check_dependencies() { check_dependencies() {
curl -V > /dev/null 2>&1 || _exiterr "This script requires curl." # just execute some dummy and/or version commands to see if required tools exist and are actually usable
openssl version > /dev/null 2>&1 || _exiterr "This script requires an openssl binary." openssl version > /dev/null 2>&1 || _exiterr "This script requires an openssl binary."
_sed "" < /dev/null > /dev/null 2>&1 || _exiterr "This script requires sed with support for extended (modern) regular expressions." _sed "" < /dev/null > /dev/null 2>&1 || _exiterr "This script requires sed with support for extended (modern) regular expressions."
grep -V > /dev/null 2>&1 || _exiterr "This script requires grep." grep -V > /dev/null 2>&1 || _exiterr "This script requires grep."
mktemp -u -t XXXXXX > /dev/null 2>&1 || _exiterr "This script requires mktemp." mktemp -u -t XXXXXX > /dev/null 2>&1 || _exiterr "This script requires mktemp."
# curl returns with an error code in some ancient versions so we have to catch that
set +e
curl -V > /dev/null 2>&1
set -e
retcode="$?"
if [[ ! "${retcode}" = "0" ]] && [[ ! "${retcode}" = "2" ]]; then
_exiterr "This script requires curl."
fi
} }
# Setup default config values, search for and load configuration files # Setup default config values, search for and load configuration files