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crypto/tls: remove return parameter stutter
Per https://golang.org/s/style#named-result-parameters Change-Id: If69d3e6d3dbef385a0f41e743fa49c25475ca40c Reviewed-on: https://go-review.googlesource.com/2761 Reviewed-by: Adam Langley <agl@golang.org>
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@ -167,22 +167,24 @@ func Dial(network, addr string, config *Config) (*Conn, error) {
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// LoadX509KeyPair reads and parses a public/private key pair from a pair of
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// files. The files must contain PEM encoded data.
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func LoadX509KeyPair(certFile, keyFile string) (cert Certificate, err error) {
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func LoadX509KeyPair(certFile, keyFile string) (Certificate, error) {
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certPEMBlock, err := ioutil.ReadFile(certFile)
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if err != nil {
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return
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return Certificate{}, err
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}
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keyPEMBlock, err := ioutil.ReadFile(keyFile)
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if err != nil {
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return
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return Certificate{}, err
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}
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return X509KeyPair(certPEMBlock, keyPEMBlock)
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}
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// X509KeyPair parses a public/private key pair from a pair of
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// PEM encoded data.
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func X509KeyPair(certPEMBlock, keyPEMBlock []byte) (cert Certificate, err error) {
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func X509KeyPair(certPEMBlock, keyPEMBlock []byte) (Certificate, error) {
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var cert Certificate
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var certDERBlock *pem.Block
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fail := func(err error) (Certificate, error) { return Certificate{}, err }
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for {
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certDERBlock, certPEMBlock = pem.Decode(certPEMBlock)
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if certDERBlock == nil {
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@ -194,62 +196,56 @@ func X509KeyPair(certPEMBlock, keyPEMBlock []byte) (cert Certificate, err error)
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}
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if len(cert.Certificate) == 0 {
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err = errors.New("crypto/tls: failed to parse certificate PEM data")
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return
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return fail(errors.New("crypto/tls: failed to parse certificate PEM data"))
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}
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var keyDERBlock *pem.Block
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for {
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keyDERBlock, keyPEMBlock = pem.Decode(keyPEMBlock)
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if keyDERBlock == nil {
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err = errors.New("crypto/tls: failed to parse key PEM data")
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return
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return fail(errors.New("crypto/tls: failed to parse key PEM data"))
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}
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if keyDERBlock.Type == "PRIVATE KEY" || strings.HasSuffix(keyDERBlock.Type, " PRIVATE KEY") {
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break
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}
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}
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var err error
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cert.PrivateKey, err = parsePrivateKey(keyDERBlock.Bytes)
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if err != nil {
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return
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return fail(err)
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}
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// We don't need to parse the public key for TLS, but we so do anyway
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// to check that it looks sane and matches the private key.
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x509Cert, err := x509.ParseCertificate(cert.Certificate[0])
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if err != nil {
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return
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return fail(err)
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}
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switch pub := x509Cert.PublicKey.(type) {
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case *rsa.PublicKey:
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priv, ok := cert.PrivateKey.(*rsa.PrivateKey)
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if !ok {
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err = errors.New("crypto/tls: private key type does not match public key type")
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return
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return fail(errors.New("crypto/tls: private key type does not match public key type"))
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}
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if pub.N.Cmp(priv.N) != 0 {
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err = errors.New("crypto/tls: private key does not match public key")
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return
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return fail(errors.New("crypto/tls: private key does not match public key"))
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}
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case *ecdsa.PublicKey:
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priv, ok := cert.PrivateKey.(*ecdsa.PrivateKey)
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if !ok {
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err = errors.New("crypto/tls: private key type does not match public key type")
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return
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return fail(errors.New("crypto/tls: private key type does not match public key type"))
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}
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if pub.X.Cmp(priv.X) != 0 || pub.Y.Cmp(priv.Y) != 0 {
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err = errors.New("crypto/tls: private key does not match public key")
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return
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return fail(errors.New("crypto/tls: private key does not match public key"))
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}
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default:
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err = errors.New("crypto/tls: unknown public key algorithm")
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return
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return fail(errors.New("crypto/tls: unknown public key algorithm"))
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}
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return
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return cert, nil
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}
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// Attempt to parse the given private key DER block. OpenSSL 0.9.8 generates
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