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authorChristopher Speller <crspeller@gmail.com>2016-05-12 23:56:07 -0400
committerChristopher Speller <crspeller@gmail.com>2016-05-12 23:56:07 -0400
commit38ee83e45b4de7edf89bf9f0ef629eb4c6ad0fa8 (patch)
treea4fde09672192b97d453ad605b030bd5a10c5a45 /vendor/golang.org/x/crypto/openpgp/canonical_text.go
parent84d2482ddbff9564c9ad75b2d30af66e3ddfd44d (diff)
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Moving to glide
Diffstat (limited to 'vendor/golang.org/x/crypto/openpgp/canonical_text.go')
-rw-r--r--vendor/golang.org/x/crypto/openpgp/canonical_text.go59
1 files changed, 59 insertions, 0 deletions
diff --git a/vendor/golang.org/x/crypto/openpgp/canonical_text.go b/vendor/golang.org/x/crypto/openpgp/canonical_text.go
new file mode 100644
index 000000000..e601e389f
--- /dev/null
+++ b/vendor/golang.org/x/crypto/openpgp/canonical_text.go
@@ -0,0 +1,59 @@
+// Copyright 2011 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.
+
+package openpgp
+
+import "hash"
+
+// NewCanonicalTextHash reformats text written to it into the canonical
+// form and then applies the hash h. See RFC 4880, section 5.2.1.
+func NewCanonicalTextHash(h hash.Hash) hash.Hash {
+ return &canonicalTextHash{h, 0}
+}
+
+type canonicalTextHash struct {
+ h hash.Hash
+ s int
+}
+
+var newline = []byte{'\r', '\n'}
+
+func (cth *canonicalTextHash) Write(buf []byte) (int, error) {
+ start := 0
+
+ for i, c := range buf {
+ switch cth.s {
+ case 0:
+ if c == '\r' {
+ cth.s = 1
+ } else if c == '\n' {
+ cth.h.Write(buf[start:i])
+ cth.h.Write(newline)
+ start = i + 1
+ }
+ case 1:
+ cth.s = 0
+ }
+ }
+
+ cth.h.Write(buf[start:])
+ return len(buf), nil
+}
+
+func (cth *canonicalTextHash) Sum(in []byte) []byte {
+ return cth.h.Sum(in)
+}
+
+func (cth *canonicalTextHash) Reset() {
+ cth.h.Reset()
+ cth.s = 0
+}
+
+func (cth *canonicalTextHash) Size() int {
+ return cth.h.Size()
+}
+
+func (cth *canonicalTextHash) BlockSize() int {
+ return cth.h.BlockSize()
+}