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moby--moby/libnetwork/vendor/github.com/opencontainers/go-digest/verifiers.go
Sebastiaan van Stijn f864421ead bump docker/docker to master and unfork dependencies
This patch updates all dependencies to match what is
used in moby/moby. Making the dependencies match
what is used in that repository makes sure we test
with the same version as libnetwork is later built
with in moby.

This also gets rid of some temporary forks that were
needed during the migration of Sirupsen/logrus to
sirupsen/logrus.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2017-10-25 17:26:25 +02:00

31 lines
720 B
Go

package digest
import (
"hash"
"io"
)
// Verifier presents a general verification interface to be used with message
// digests and other byte stream verifications. Users instantiate a Verifier
// from one of the various methods, write the data under test to it then check
// the result with the Verified method.
type Verifier interface {
io.Writer
// Verified will return true if the content written to Verifier matches
// the digest.
Verified() bool
}
type hashVerifier struct {
digest Digest
hash hash.Hash
}
func (hv hashVerifier) Write(p []byte) (n int, err error) {
return hv.hash.Write(p)
}
func (hv hashVerifier) Verified() bool {
return hv.digest == NewDigest(hv.digest.Algorithm(), hv.hash)
}