Imported Upstream version 60upstream/60

1 files changed, 37 insertions, 0 deletions

diff --git a/test/fixedbugs/bug303.go b/test/fixedbugs/bug303.go
new file mode 100644
index 000000000..3bd790f13
--- /dev/null
+++ b/test/fixedbugs/bug303.go
@@ -0,0 +1,37 @@
+// $G $D/$F.go && $L $F.$A && ./$A.out
+
+// Copyright 2010 The Go Authors.  All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Issue 1011.  Removing either #1 or #3 avoided the crash at #2.
+
+package main
+
+import (
+	"io"
+	"strings"
+)
+
+func readU16BE(b []byte) uint16 {
+	b[0] = 0
+	b[1] = 1
+	return uint16(b[0])<<8 + uint16(b[1]) // #1
+	n := uint16(b[0])<<8 + uint16(b[1])
+	return n
+}
+
+func readStr(r io.Reader, b []byte) string {
+	n := readU16BE(b)
+	if int(n) > len(b) {
+		return "err: n>b"
+	}
+	io.ReadFull(r, b[0:n]) // #2
+	return string(b[0:n])  // #3
+	return "ok"
+}
+
+func main() {
+	br := strings.NewReader("abcd")
+	readStr(br, make([]byte, 256))
+}