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Make the agent work with Home Assistant OS #736

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Make the agent work with Home Assistant OS #736

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30 changes: 15 additions & 15 deletions agents/check_mk_agent.linux
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Original file line number Diff line number Diff line change
Expand Up @@ -337,8 +337,9 @@ hex_decode() {
# We might not have xxd available, so we have to do it manually.
# Be aware that this implementation is very slow and should not be used for large data.
local hex="$1"
for ((i = 0; i < ${#hex}; i += 2)); do
while [ "$i" -lt ${#hex} ]; do
printf '%b' "\x${hex:i:2}"
$i = $i+2
done
}

Expand Down Expand Up @@ -405,9 +406,7 @@ define_optionally_encrypt() {
# kdf: pbkdf2, 600.000 iterations

local salt_hex key_hex iv_hex
read -r salt_hex key_hex iv_hex <<<"$(
parse_kdf_output "$(openssl enc -aes-256-cbc -md sha256 -pbkdf2 -iter 600000 -k "${1}" -P)"
)"
read -r salt_hex key_hex iv_hex "$(parse_kdf_output "$(openssl enc -aes-256-cbc -md sha256 -pbkdf2 -iter 600000 -k "${1}" -P)")"

printf "05"
printf "%s" "${2}"
Expand All @@ -420,9 +419,7 @@ define_optionally_encrypt() {
# kdf: openssl custom kdf based on sha256

local salt_hex key_hex iv_hex
read -r salt_hex key_hex iv_hex <<<"$(
parse_kdf_output "$(openssl enc -aes-256-cbc -md sha256 -k "${1}" -P)"
)"
read -r salt_hex key_hex iv_hex "$(parse_kdf_output "$(openssl enc -aes-256-cbc -md sha256 -k "${1}" -P)")"

printf "04"
printf "%s" "${2}"
Expand Down Expand Up @@ -493,14 +490,17 @@ HERE
#

echo "OSType: linux"
while read -r line; do
raw_line="${line//\"/}"
case $line in
ID=*) echo "OSPlatform: ${raw_line##*=}" ;;
NAME=*) echo "OSName: ${raw_line##*=}" ;;
VERSION_ID=*) echo "OSVersion: ${raw_line##*=}" ;;
esac
done <<<"$(cat /etc/os-release 2>/dev/null)"
OS_Release=/etc/os-release
if [ -e "$OS_Release" ]; then
while read -r line; do
raw_line="${line//\"/}"
case $line in
ID=*) echo "OSPlatform: ${raw_line##*=}" ;;
NAME=*) echo "OSName: ${raw_line##*=}" ;;
VERSION_ID=*) echo "OSVersion: ${raw_line##*=}" ;;
esac
done < $OS_Release
fi

#
# BEGIN COMMON AGENT CODE
Expand Down
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