diff options
Diffstat (limited to 'vendor/google.golang.org/protobuf/proto/decode.go')
| -rw-r--r-- | vendor/google.golang.org/protobuf/proto/decode.go | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/vendor/google.golang.org/protobuf/proto/decode.go b/vendor/google.golang.org/protobuf/proto/decode.go index 42fc5195e..49f9b8c88 100644 --- a/vendor/google.golang.org/protobuf/proto/decode.go +++ b/vendor/google.golang.org/protobuf/proto/decode.go @@ -45,12 +45,14 @@ type UnmarshalOptions struct { } // Unmarshal parses the wire-format message in b and places the result in m. +// The provided message must be mutable (e.g., a non-nil pointer to a message). func Unmarshal(b []byte, m Message) error { _, err := UnmarshalOptions{}.unmarshal(b, m.ProtoReflect()) return err } // Unmarshal parses the wire-format message in b and places the result in m. +// The provided message must be mutable (e.g., a non-nil pointer to a message). func (o UnmarshalOptions) Unmarshal(b []byte, m Message) error { _, err := o.unmarshal(b, m.ProtoReflect()) return err @@ -116,10 +118,10 @@ func (o UnmarshalOptions) unmarshalMessageSlow(b []byte, m protoreflect.Message) // Parse the tag (field number and wire type). num, wtyp, tagLen := protowire.ConsumeTag(b) if tagLen < 0 { - return protowire.ParseError(tagLen) + return errDecode } if num > protowire.MaxValidNumber { - return errors.New("invalid field number") + return errDecode } // Find the field descriptor for this field number. @@ -159,7 +161,7 @@ func (o UnmarshalOptions) unmarshalMessageSlow(b []byte, m protoreflect.Message) } valLen = protowire.ConsumeFieldValue(num, wtyp, b[tagLen:]) if valLen < 0 { - return protowire.ParseError(valLen) + return errDecode } if !o.DiscardUnknown { m.SetUnknown(append(m.GetUnknown(), b[:tagLen+valLen]...)) @@ -194,7 +196,7 @@ func (o UnmarshalOptions) unmarshalMap(b []byte, wtyp protowire.Type, mapv proto } b, n = protowire.ConsumeBytes(b) if n < 0 { - return 0, protowire.ParseError(n) + return 0, errDecode } var ( keyField = fd.MapKey() @@ -213,10 +215,10 @@ func (o UnmarshalOptions) unmarshalMap(b []byte, wtyp protowire.Type, mapv proto for len(b) > 0 { num, wtyp, n := protowire.ConsumeTag(b) if n < 0 { - return 0, protowire.ParseError(n) + return 0, errDecode } if num > protowire.MaxValidNumber { - return 0, errors.New("invalid field number") + return 0, errDecode } b = b[n:] err = errUnknown @@ -246,7 +248,7 @@ func (o UnmarshalOptions) unmarshalMap(b []byte, wtyp protowire.Type, mapv proto if err == errUnknown { n = protowire.ConsumeFieldValue(num, wtyp, b) if n < 0 { - return 0, protowire.ParseError(n) + return 0, errDecode } } else if err != nil { return 0, err @@ -272,3 +274,5 @@ func (o UnmarshalOptions) unmarshalMap(b []byte, wtyp protowire.Type, mapv proto // to the unknown field set of a message. It is never returned from an exported // function. var errUnknown = errors.New("BUG: internal error (unknown)") + +var errDecode = errors.New("cannot parse invalid wire-format data") |