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Fix issue when shell command becomes to long.

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This commit is contained in:
Albrecht Lohofener
2025-01-09 16:37:05 +01:00
parent 3fb54175d0
commit 442deff9c3
1 changed files with 5 additions and 5 deletions
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src/qemu_qmp.sh
+5 -5
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@@ -71,17 +71,17 @@ while getopts ":hvrqsSVRc" option; do
exit;;
c) # Run shell command inside OpenWrt, package qemu-ga needs to be installed
# Execute command in OpenWrt
INPUT_DATA=`echo "$2" | base64`
INPUT_DATA=`echo "$2" | base64 -w 0`
RETURN_JSON=`echo '{"execute": "guest-exec", "arguments": { "path": "/bin/sh", "input-data": "'${INPUT_DATA}'", "capture-output": true }}' | nc -w 1 -U /run/qga.sock`
PID=`echo $RETURN_JSON | sed -n 's/.*"pid": \([0-9]*\).*/\1/p'` # Process return and extract PID
#echo >&2 "PID: $PID"
[ -z "$PID" ] && exit 1
#echo >&2 "RETURN_JSON: $RETURN_JSON"
[ -z "$PID" ] && echo >&2 "Command error: PID is empty! RETURN_JSON: $RETURN_JSON" && exit 1
while true; do # Wait for command exit
RETURN_JSON=`echo '{"execute": "guest-exec-status", "arguments": { "pid": '${PID}'}}' | nc -w 1 -U /run/qga.sock`
#echo >&2 "RETURN_JSON: $RETURN_JSON"
export EXITCODE=`echo $RETURN_JSON | sed -n 's/.*"exitcode": \([0-9]*\).*/\1/p'`
export OUT_DATA=`echo $RETURN_JSON | sed -n 's/.*"out-data": "\([^"]*\).*/\1/p' | base64 -d`
export ERR_DATA=`echo $RETURN_JSON | sed -n 's/.*"err-data": "\([^"]*\).*/\1/p' | base64 -d`
export OUT_DATA=`echo $RETURN_JSON | sed -n 's/.*"out-data": "\([^"]*\).*/\1/p' | base64 -d -w 0`
export ERR_DATA=`echo $RETURN_JSON | sed -n 's/.*"err-data": "\([^"]*\).*/\1/p' | base64 -d -w 0`
export EXITED=`echo $RETURN_JSON | sed -n 's/.*"exited": \(true\|false\).*/\1/p'`
if [ "$EXITED" = "true" ]; then
break