ringlogger: add a basic CLI log dumping command

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>

1 files changed, 15 insertions, 0 deletions

diff --git a/main.go b/main.go
index f7c10f32..1e06d626 100644
--- a/main.go
+++ b/main.go
@@ -28,6 +28,7 @@ var flags = [...]string{
 	"/managerservice",
 	"/tunnelservice CONFIG_PATH",
 	"/ui CMD_READ_HANDLE CMD_WRITE_HANDLE CMD_EVENT_HANDLE LOG_MAPPING_HANDLE",
+	"/dumplog OUTPUT_PATH",
 }
 
 //sys messageBoxEx(hwnd windows.Handle, text *uint16, title *uint16, typ uint, languageId uint16) = user32.MessageBoxExW
@@ -205,6 +206,20 @@ func main() {
 		service.InitializeIPCClient(readPipe, writePipe, eventPipe)
 		ui.RunUI()
 		return
+	case "/dumplog":
+		if len(os.Args) != 3 {
+			usage()
+		}
+		file, err := os.Create(os.Args[2])
+		if err != nil {
+			fatal(err)
+		}
+		defer file.Close()
+		err = ringlogger.DumpTo(file, true)
+		if err != nil {
+			fatal(err)
+		}
+		return
 	}
 	usage()
 }