output: free C string after use

l2dy · edsiper · commit 215d6804159a · 2020-03-03T17:25:58.000-08:00
Signed-off-by: Zero King &lt;l2dy@icloud.com&gt;
diff --git a/output/output.go b/output/output.go
@@ -64,7 +64,9 @@ func FLBPluginUnregister(def unsafe.Pointer) {
 
 func FLBPluginConfigKey(plugin unsafe.Pointer, key string) string {
 	_key := C.CString(key)
-	return C.GoString(C.output_get_property(_key, plugin))
+	value := C.GoString(C.output_get_property(_key, plugin))
+	C.free(unsafe.Pointer(_key))
+	return value
 }
 
 var contexts []interface{}

Original file line number	Diff line number	Diff line change
`@@ -64,7 +64,9 @@ func FLBPluginUnregister(def unsafe.Pointer) {`
`64`	`64`
`65`	`65`	`func FLBPluginConfigKey(plugin unsafe.Pointer, key string) string {`
`66`	`66`	`_key := C.CString(key)`
`67`		`- return C.GoString(C.output_get_property(_key, plugin))`
	`67`	`+ value := C.GoString(C.output_get_property(_key, plugin))`
	`68`	`+ C.free(unsafe.Pointer(_key))`
	`69`	`+ return value`
`68`	`70`	`}`
`69`	`71`
`70`	`72`	`var contexts []interface{}`