}
	if len(c.Encoded) == 0 || c.Type.Trailing() {
		return c.Type.Is(ChecksumNone) || c.Type.Trailing()
	}
	raw := c.Raw
	return c.Type.RawByteLen() == len(raw)
}

// Matches returns whether given content matches c.
func (c Checksum) Matches(content []byte) error {
	if len(c.Encoded) == 0 {
		return nil
	}
	hasher := c.Type.Hasher()
	_, err := hasher.Write(content)
	if err != nil {
		return err
	}

	local expected
	expected=$(mc cat "$1" | sha256sum)
	local got
	got=$(mc cat "$2" | sha256sum)

	if [ "${expected}" != "${got}" ]; then
		echo "mismatch - expected ${expected}, got ${got}"
		exit 1
	fi
	echo "matches - ${expected}, got ${got}"
}

add_alias() {
	for i in $(seq 1 4); do
		echo "... attempting to add alias $i"
		until (mc alias set minio http://127.0.0.1:9000 minioadmin minioadmin); do

func (e metaCacheEntry) hasPrefix(s string) bool {
	return strings.HasPrefix(e.name, s)
}

// matches returns if the entries have the same versions.
// If strict is false we allow signatures to mismatch.
func (e *metaCacheEntry) matches(other *metaCacheEntry, strict bool) (prefer *metaCacheEntry, matches bool) {
	if e == nil && other == nil {
		return nil, true
	}
	if e == nil {
		return other, false
	}

	}
	return path, nil
}

var regexVersion = regexp.MustCompile(`^/minio.*/(v\d+)/.*`)

func extractAPIVersion(r *http.Request) string {
	if matches := regexVersion.FindStringSubmatch(r.URL.Path); len(matches) > 1 {
		return matches[1]
	}
	return "unknown"
}

func methodNotAllowedHandler(api string) func(w http.ResponseWriter, r *http.Request) {
	return errorResponseHandler
}

	if err != nil {
		return err
	}
	*ef = BatchJobExpireFilter(tmp)
	ef.line, ef.col = value.Line, value.Column
	return err
}

// Matches returns true if obj matches the filter conditions specified in ef.
func (ef BatchJobExpireFilter) Matches(obj ObjectInfo, now time.Time) bool {
	switch ef.Type {
	case BatchJobExpireObject:
		if obj.DeleteMarker {
			return false
		}
	case BatchJobExpireDeleted:

	}

	for {
		select {
		case <-ctx.Done():
			return
		case <-t.C:
			if !monitor() {
				return
			}
		}
	}
}

// checkID will check if the disk ID matches the provided ID.
func (p *xlStorageDiskIDCheck) checkID(wantID string) (err error) {
	if wantID == "" {
		return nil
	}
	id, err := p.storage.GetDiskID()
	if err != nil {
		return err
	}

}

// doesPresignV2SignatureMatch - Verify query headers with presigned signature
//   - http://docs.aws.amazon.com/AmazonS3/latest/dev/RESTAuthentication.html#RESTAuthenticationQueryStringAuth
//
// returns ErrNone if matches. S3 errors otherwise.
func doesPresignV2SignatureMatch(r *http.Request) APIErrorCode {
	// r.RequestURI will have raw encoded URI as sent by the client.
	tokens := strings.SplitN(r.RequestURI, "?", 2)

	}
	opts.setBucketMeta(ctx)

	ri := logger.GetReqInfo(ctx)
	hadoop := ri != nil && strings.Contains(ri.UserAgent, `Hadoop `) && strings.Contains(ri.UserAgent, "scala/")
	matches := func() bool {
		if prefix == "" {
			return false
		}
		// List of standard files supported by s3a
		// that involves a List() on a directory
		// where directory is actually an object on

	deadline := UTCNow().Add(leakDetectDeadline * time.Second)
	for {
		// get sack snapshot of relevant go routines.
		leaked := initialSnapShot.CompareCurrentSnapshot()
		// current stack snapshot matches the initial one, no leaks, return.
		if len(leaked) == 0 {
			return
		}
		// wait a test again will deadline.
		if UTCNow().Before(deadline) {
			time.Sleep(leakDetectPauseTimeMs * time.Millisecond)
			continue

// than 16 MiB. We must not accept arbitrary large chunks.
// One 16 MiB is a reasonable max limit.
//
// Then we read the signature and payload data. We compute the SHA256 checksum
// of the payload and verify that it matches the expected signature value.
//
// The last chunk is *always* 0-sized. So, we must only return io.EOF if we have encountered
// a chunk with a chunk size = 0. However, this chunk still has a signature and we must