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crypto/tls: remove return parameter stutter

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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>
This commit is contained in:
Brad Fitzpatrick 2015-01-13 11:34:46 -08:00
parent 2c7c727c1c
commit 552080c72a
1 changed files with 17 additions and 21 deletions
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38
src/crypto/tls/tls.go
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@ -167,22 +167,24 @@ func Dial(network, addr string, config *Config) (*Conn, error) {
// LoadX509KeyPair reads and parses a public/private key pair from a pair of
// files. The files must contain PEM encoded data.
func LoadX509KeyPair(certFile, keyFile string) (cert Certificate, err error) {
func LoadX509KeyPair(certFile, keyFile string) (Certificate, error) {
certPEMBlock, err := ioutil.ReadFile(certFile)
if err != nil {
return
return Certificate{}, err
}
keyPEMBlock, err := ioutil.ReadFile(keyFile)
if err != nil {
return
return Certificate{}, err
}
return X509KeyPair(certPEMBlock, keyPEMBlock)
}
// X509KeyPair parses a public/private key pair from a pair of
// PEM encoded data.
func X509KeyPair(certPEMBlock, keyPEMBlock []byte) (cert Certificate, err error) {
func X509KeyPair(certPEMBlock, keyPEMBlock []byte) (Certificate, error) {
var cert Certificate
var certDERBlock *pem.Block
fail := func(err error) (Certificate, error) { return Certificate{}, err }
for {
certDERBlock, certPEMBlock = pem.Decode(certPEMBlock)
if certDERBlock == nil {
@ -194,62 +196,56 @@ func X509KeyPair(certPEMBlock, keyPEMBlock []byte) (cert Certificate, err error)
}
if len(cert.Certificate) == 0 {
err = errors.New("crypto/tls: failed to parse certificate PEM data")
return
return fail(errors.New("crypto/tls: failed to parse certificate PEM data"))
}
var keyDERBlock *pem.Block
for {
keyDERBlock, keyPEMBlock = pem.Decode(keyPEMBlock)
if keyDERBlock == nil {
err = errors.New("crypto/tls: failed to parse key PEM data")
return
return fail(errors.New("crypto/tls: failed to parse key PEM data"))
}
if keyDERBlock.Type == "PRIVATE KEY" || strings.HasSuffix(keyDERBlock.Type, " PRIVATE KEY") {
break
}
}
var err error
cert.PrivateKey, err = parsePrivateKey(keyDERBlock.Bytes)
if err != nil {
return
return fail(err)
}
// We don't need to parse the public key for TLS, but we so do anyway
// to check that it looks sane and matches the private key.
x509Cert, err := x509.ParseCertificate(cert.Certificate[0])
if err != nil {
return
return fail(err)
}
switch pub := x509Cert.PublicKey.(type) {
case *rsa.PublicKey:
priv, ok := cert.PrivateKey.(*rsa.PrivateKey)
if !ok {
err = errors.New("crypto/tls: private key type does not match public key type")
return
return fail(errors.New("crypto/tls: private key type does not match public key type"))
}
if pub.N.Cmp(priv.N) != 0 {
err = errors.New("crypto/tls: private key does not match public key")
return
return fail(errors.New("crypto/tls: private key does not match public key"))
}
case *ecdsa.PublicKey:
priv, ok := cert.PrivateKey.(*ecdsa.PrivateKey)
if !ok {
err = errors.New("crypto/tls: private key type does not match public key type")
return
return fail(errors.New("crypto/tls: private key type does not match public key type"))
}
if pub.X.Cmp(priv.X) != 0 || pub.Y.Cmp(priv.Y) != 0 {
err = errors.New("crypto/tls: private key does not match public key")
return
return fail(errors.New("crypto/tls: private key does not match public key"))
}
default:
err = errors.New("crypto/tls: unknown public key algorithm")
return
return fail(errors.New("crypto/tls: unknown public key algorithm"))
}
return
return cert, nil
}
// Attempt to parse the given private key DER block. OpenSSL 0.9.8 generates