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author | Christopher Speller <crspeller@gmail.com> | 2018-04-16 05:37:14 -0700 |
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committer | Joram Wilander <jwawilander@gmail.com> | 2018-04-16 08:37:14 -0400 |
commit | 6e2cb00008cbf09e556b00f87603797fcaa47e09 (patch) | |
tree | 3c0eb55ff4226a3f024aad373140d1fb860a6404 /vendor/golang.org/x/crypto/cryptobyte/example_test.go | |
parent | bf24f51c4e1cc6286885460672f7f449e8c6f5ef (diff) | |
download | chat-6e2cb00008cbf09e556b00f87603797fcaa47e09.tar.gz chat-6e2cb00008cbf09e556b00f87603797fcaa47e09.tar.bz2 chat-6e2cb00008cbf09e556b00f87603797fcaa47e09.zip |
Depenancy upgrades and movign to dep. (#8630)
Diffstat (limited to 'vendor/golang.org/x/crypto/cryptobyte/example_test.go')
-rw-r--r-- | vendor/golang.org/x/crypto/cryptobyte/example_test.go | 154 |
1 files changed, 0 insertions, 154 deletions
diff --git a/vendor/golang.org/x/crypto/cryptobyte/example_test.go b/vendor/golang.org/x/crypto/cryptobyte/example_test.go deleted file mode 100644 index 86c098adf..000000000 --- a/vendor/golang.org/x/crypto/cryptobyte/example_test.go +++ /dev/null @@ -1,154 +0,0 @@ -// Copyright 2017 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 cryptobyte_test - -import ( - "errors" - "fmt" - - "golang.org/x/crypto/cryptobyte" - "golang.org/x/crypto/cryptobyte/asn1" -) - -func ExampleString_lengthPrefixed() { - // This is an example of parsing length-prefixed data (as found in, for - // example, TLS). Imagine a 16-bit prefixed series of 8-bit prefixed - // strings. - - input := cryptobyte.String([]byte{0, 12, 5, 'h', 'e', 'l', 'l', 'o', 5, 'w', 'o', 'r', 'l', 'd'}) - var result []string - - var values cryptobyte.String - if !input.ReadUint16LengthPrefixed(&values) || - !input.Empty() { - panic("bad format") - } - - for !values.Empty() { - var value cryptobyte.String - if !values.ReadUint8LengthPrefixed(&value) { - panic("bad format") - } - - result = append(result, string(value)) - } - - // Output: []string{"hello", "world"} - fmt.Printf("%#v\n", result) -} - -func ExampleString_aSN1() { - // This is an example of parsing ASN.1 data that looks like: - // Foo ::= SEQUENCE { - // version [6] INTEGER DEFAULT 0 - // data OCTET STRING - // } - - input := cryptobyte.String([]byte{0x30, 12, 0xa6, 3, 2, 1, 2, 4, 5, 'h', 'e', 'l', 'l', 'o'}) - - var ( - version int64 - data, inner, versionBytes cryptobyte.String - haveVersion bool - ) - if !input.ReadASN1(&inner, asn1.SEQUENCE) || - !input.Empty() || - !inner.ReadOptionalASN1(&versionBytes, &haveVersion, asn1.Tag(6).Constructed().ContextSpecific()) || - (haveVersion && !versionBytes.ReadASN1Integer(&version)) || - (haveVersion && !versionBytes.Empty()) || - !inner.ReadASN1(&data, asn1.OCTET_STRING) || - !inner.Empty() { - panic("bad format") - } - - // Output: haveVersion: true, version: 2, data: hello - fmt.Printf("haveVersion: %t, version: %d, data: %s\n", haveVersion, version, string(data)) -} - -func ExampleBuilder_aSN1() { - // This is an example of building ASN.1 data that looks like: - // Foo ::= SEQUENCE { - // version [6] INTEGER DEFAULT 0 - // data OCTET STRING - // } - - version := int64(2) - data := []byte("hello") - const defaultVersion = 0 - - var b cryptobyte.Builder - b.AddASN1(asn1.SEQUENCE, func(b *cryptobyte.Builder) { - if version != defaultVersion { - b.AddASN1(asn1.Tag(6).Constructed().ContextSpecific(), func(b *cryptobyte.Builder) { - b.AddASN1Int64(version) - }) - } - b.AddASN1OctetString(data) - }) - - result, err := b.Bytes() - if err != nil { - panic(err) - } - - // Output: 300ca603020102040568656c6c6f - fmt.Printf("%x\n", result) -} - -func ExampleBuilder_lengthPrefixed() { - // This is an example of building length-prefixed data (as found in, - // for example, TLS). Imagine a 16-bit prefixed series of 8-bit - // prefixed strings. - input := []string{"hello", "world"} - - var b cryptobyte.Builder - b.AddUint16LengthPrefixed(func(b *cryptobyte.Builder) { - for _, value := range input { - b.AddUint8LengthPrefixed(func(b *cryptobyte.Builder) { - b.AddBytes([]byte(value)) - }) - } - }) - - result, err := b.Bytes() - if err != nil { - panic(err) - } - - // Output: 000c0568656c6c6f05776f726c64 - fmt.Printf("%x\n", result) -} - -func ExampleBuilder_lengthPrefixOverflow() { - // Writing more data that can be expressed by the length prefix results - // in an error from Bytes(). - - tooLarge := make([]byte, 256) - - var b cryptobyte.Builder - b.AddUint8LengthPrefixed(func(b *cryptobyte.Builder) { - b.AddBytes(tooLarge) - }) - - result, err := b.Bytes() - fmt.Printf("len=%d err=%s\n", len(result), err) - - // Output: len=0 err=cryptobyte: pending child length 256 exceeds 1-byte length prefix -} - -func ExampleBuilderContinuation_errorHandling() { - var b cryptobyte.Builder - // Continuations that panic with a BuildError will cause Bytes to - // return the inner error. - b.AddUint16LengthPrefixed(func(b *cryptobyte.Builder) { - b.AddUint32(0) - panic(cryptobyte.BuildError{Err: errors.New("example error")}) - }) - - result, err := b.Bytes() - fmt.Printf("len=%d err=%s\n", len(result), err) - - // Output: len=0 err=example error -} |