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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-16 19:19:13 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-16 19:19:13 +0000 |
commit | ccd992355df7192993c666236047820244914598 (patch) | |
tree | f00fea65147227b7743083c6148396f74cd66935 /test/fixedbugs/bug303.go | |
parent | Initial commit. (diff) | |
download | golang-1.21-ccd992355df7192993c666236047820244914598.tar.xz golang-1.21-ccd992355df7192993c666236047820244914598.zip |
Adding upstream version 1.21.8.upstream/1.21.8
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | test/fixedbugs/bug303.go | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/test/fixedbugs/bug303.go b/test/fixedbugs/bug303.go new file mode 100644 index 0000000..aef8b22 --- /dev/null +++ b/test/fixedbugs/bug303.go @@ -0,0 +1,37 @@ +// run + +// 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)) +} |