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author | Christopher Speller <crspeller@gmail.com> | 2015-12-08 13:38:43 -0500 |
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committer | Christopher Speller <crspeller@gmail.com> | 2015-12-16 17:30:15 -0500 |
commit | 58358ddd7cd0152bf16a7326e1d595524fb51246 (patch) | |
tree | 350cd462f9b530529e0f098fa1d458c3a36abd4a /Godeps/_workspace/src/gopkg.in/asn1-ber.v1/header.go | |
parent | 4f881046bf2a4c74fb44d71e2e78826c70719a8c (diff) | |
download | chat-58358ddd7cd0152bf16a7326e1d595524fb51246.tar.gz chat-58358ddd7cd0152bf16a7326e1d595524fb51246.tar.bz2 chat-58358ddd7cd0152bf16a7326e1d595524fb51246.zip |
Some refactoring
Diffstat (limited to 'Godeps/_workspace/src/gopkg.in/asn1-ber.v1/header.go')
-rw-r--r-- | Godeps/_workspace/src/gopkg.in/asn1-ber.v1/header.go | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/Godeps/_workspace/src/gopkg.in/asn1-ber.v1/header.go b/Godeps/_workspace/src/gopkg.in/asn1-ber.v1/header.go new file mode 100644 index 000000000..123744e9b --- /dev/null +++ b/Godeps/_workspace/src/gopkg.in/asn1-ber.v1/header.go @@ -0,0 +1,29 @@ +package ber + +import ( + "errors" + "io" +) + +func readHeader(reader io.Reader) (identifier Identifier, length int, read int, err error) { + if i, c, err := readIdentifier(reader); err != nil { + return Identifier{}, 0, read, err + } else { + identifier = i + read += c + } + + if l, c, err := readLength(reader); err != nil { + return Identifier{}, 0, read, err + } else { + length = l + read += c + } + + // Validate length type with identifier (x.600, 8.1.3.2.a) + if length == LengthIndefinite && identifier.TagType == TypePrimitive { + return Identifier{}, 0, read, errors.New("indefinite length used with primitive type") + } + + return identifier, length, read, nil +} |