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authorIan Lance Taylor <ian@gcc.gnu.org>2014-07-19 08:53:52 +0000
committerIan Lance Taylor <ian@gcc.gnu.org>2014-07-19 08:53:52 +0000
commit00d86ac99f5dd6afa5bbd7c38ffe1c585edd2387 (patch)
treeb988e32ea14a3dc1b4718b1fdfa47bab087ae96c /libgo/go/encoding/ascii85
parentbcf2fc6ee0a7edbe7de4299f28b66527c07bb0a2 (diff)
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libgo: Update to Go 1.3 release.
From-SVN: r212837
Diffstat (limited to 'libgo/go/encoding/ascii85')
-rw-r--r--libgo/go/encoding/ascii85/ascii85.go12
-rw-r--r--libgo/go/encoding/ascii85/ascii85_test.go11
2 files changed, 23 insertions, 0 deletions
diff --git a/libgo/go/encoding/ascii85/ascii85.go b/libgo/go/encoding/ascii85/ascii85.go
index e2afc58..60da304 100644
--- a/libgo/go/encoding/ascii85/ascii85.go
+++ b/libgo/go/encoding/ascii85/ascii85.go
@@ -281,6 +281,18 @@ func (d *decoder) Read(p []byte) (n int, err error) {
d.nbuf = copy(d.buf[0:], d.buf[nsrc:d.nbuf])
continue // copy out and return
}
+ if ndst == 0 && d.err == nil {
+ // Special case: input buffer is mostly filled with non-data bytes.
+ // Filter out such bytes to make room for more input.
+ off := 0
+ for i := 0; i < d.nbuf; i++ {
+ if d.buf[i] > ' ' {
+ d.buf[off] = d.buf[i]
+ off++
+ }
+ }
+ d.nbuf = off
+ }
}
// Out of input, out of decoded output. Check errors.
diff --git a/libgo/go/encoding/ascii85/ascii85_test.go b/libgo/go/encoding/ascii85/ascii85_test.go
index 77bc465..aad199b 100644
--- a/libgo/go/encoding/ascii85/ascii85_test.go
+++ b/libgo/go/encoding/ascii85/ascii85_test.go
@@ -197,3 +197,14 @@ func TestBig(t *testing.T) {
t.Errorf("Decode(Encode(%d-byte string)) failed at offset %d", n, i)
}
}
+
+func TestDecoderInternalWhitespace(t *testing.T) {
+ s := strings.Repeat(" ", 2048) + "z"
+ decoded, err := ioutil.ReadAll(NewDecoder(strings.NewReader(s)))
+ if err != nil {
+ t.Errorf("Decode gave error %v", err)
+ }
+ if want := []byte("\000\000\000\000"); !bytes.Equal(want, decoded) {
+ t.Errorf("Decode failed: got %v, want %v", decoded, want)
+ }
+}