tools/syz-tty: add utility for testing of usb console reading code

1 files changed, 29 insertions, 0 deletions

diff --git a/tools/syz-tty/syz-tty.go b/tools/syz-tty/syz-tty.go
new file mode 100644
index 000000000..a03e7ee39
--- /dev/null
+++ b/tools/syz-tty/syz-tty.go
@@ -0,0 +1,29 @@
+// Copyright 2017 syzkaller project authors. All rights reserved.
+// Use of this source code is governed by Apache 2 LICENSE that can be found in the LICENSE file.
+
+// syz-tty is utility for testing of usb console reading code. Usage:
+//   $ syz-tty /dev/ttyUSBx
+// This should dump device console output.
+package main
+
+import (
+	"fmt"
+	"io"
+	"os"
+
+	"github.com/google/syzkaller/vm/vmimpl"
+)
+
+func main() {
+	if len(os.Args) != 2 {
+		fmt.Fprintf(os.Stderr, "usage: %v /dev/ttyUSBx\n", os.Args[0])
+		os.Exit(1)
+	}
+	con, err := vmimpl.OpenConsole(os.Args[0])
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "failed to open console: %v\n", err)
+		os.Exit(1)
+	}
+	defer con.Close()
+	io.Copy(os.Stdout, con)
+}