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cut scan length to 20 bytes #402

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merged 1 commit into from
Mar 11, 2022
Merged

cut scan length to 20 bytes #402

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7 changes: 4 additions & 3 deletions plugins/inputs/windows_event_log/wineventlog/utils.go
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Original file line number Diff line number Diff line change
Expand Up @@ -23,6 +23,7 @@ const (
eventLogQueryTemplate = `<QueryList><Query Id="0"><Select Path="%s">%s</Select></Query></QueryList>`
eventLogLevelFilter = "Level='%s'"
eventIgnoreOldFilter = "TimeCreated[timediff(@SystemTime) &lt;= %d]"
emptySpaceScanLength = 20

CRITICAL = "CRITICAL"
ERROR = "ERROR"
Expand Down Expand Up @@ -112,15 +113,15 @@ func UTF16ToUTF8Bytes(in []byte, length uint32) ([]byte, error) {
}

func isTheEndOfContent(in []byte, length uint32) bool {
// scan next 100 characters, if any of them is none '0', return false
// scan next 20 bytes, if any of them is none '0', return false
i := int(length)

if i%2 != 0 {
i -= 1
}
max := len(in)
if i+100 < max {
max = i+100
if i+emptySpaceScanLength < max {
max = i+emptySpaceScanLength
}

for ; i < max - 2; i += 2 {
Expand Down