diff options
author | 2017-08-31 11:59:47 +0800 | |
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committer | 2017-08-31 12:00:09 +0800 | |
commit | c0f3b093c704da85252044b3a177dbabab63c49a (patch) | |
tree | f6cb5d85315c307bcf4984ac04e76e84b9abeac6 /kube2msb/src/vendor/github.com/docker/distribution/digest/verifiers.go | |
parent | c1737d2abac61511e00f388538779d67464b8a98 (diff) |
add vendor package
Issue-Id: OOM-61
Change-Id: I251336e3b711b14f8ae9a8b0bf6055011a1d9bc8
Signed-off-by: HuabingZhao <zhao.huabing@zte.com.cn>
Diffstat (limited to 'kube2msb/src/vendor/github.com/docker/distribution/digest/verifiers.go')
-rw-r--r-- | kube2msb/src/vendor/github.com/docker/distribution/digest/verifiers.go | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/kube2msb/src/vendor/github.com/docker/distribution/digest/verifiers.go b/kube2msb/src/vendor/github.com/docker/distribution/digest/verifiers.go new file mode 100644 index 0000000..9af3be1 --- /dev/null +++ b/kube2msb/src/vendor/github.com/docker/distribution/digest/verifiers.go @@ -0,0 +1,44 @@ +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 +} + +// NewDigestVerifier returns a verifier that compares the written bytes +// against a passed in digest. +func NewDigestVerifier(d Digest) (Verifier, error) { + if err := d.Validate(); err != nil { + return nil, err + } + + return hashVerifier{ + hash: d.Algorithm().Hash(), + digest: d, + }, nil +} + +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) +} |