}
			} else if idx := getRIndex(names, c.before); idx != -1 {
				// if before callback exists
				cs[idx].after = c.name
			}
		}

		if c.after != "" { // if defined after callback
			if c.after == "*" && len(sorted) > 0 {
				if curIdx := getRIndex(sorted, c.name); curIdx == -1 {
					sorted = append(sorted, c.name)
				}
			} else if sortedIdx := getRIndex(sorted, c.after); sortedIdx != -1 {

			stop()
			if err != nil {
				if isSysErrNotDir(err) {
					return nil
				}
				err = osErrToFileErr(err)
				if err == errFileNotFound {
					return nil
				}
				return err
			}
			if nbuf <= 0 {
				break // EOF
			}
		}
		consumed, name, typ, err := parseDirEnt(buf[boff:nbuf])
		if err != nil {
			return err
		}
		boff += consumed

// IsRequested returns true if the HTTP headers contains
// at least one SSE-KMS header.
func (ssekms) IsRequested(h http.Header) bool {
	if _, ok := h[xhttp.AmzServerSideEncryptionKmsID]; ok {
		return true
	}
	if _, ok := h[xhttp.AmzServerSideEncryptionKmsContext]; ok {
		return true
	}
	if _, ok := h[xhttp.AmzServerSideEncryption]; ok {

	if e != nil {
		return psv, ErrMalformedExpires
	}

	if preSignV4Values.Expires < 0 {
		return psv, ErrNegativeExpires
	}

	// Check if Expiry time is less than 7 days (value in seconds).
	if preSignV4Values.Expires.Seconds() > 604800 {
		return psv, ErrMaximumExpires
	}

	if preSignV4Values.Date.IsZero() || preSignV4Values.Date.Equal(timeSentinel) {

}

// Checks bucket and object name validity, returns nil if both are valid.
func checkBucketAndObjectNames(ctx context.Context, bucket, object string) error {
	// Verify if bucket is valid.
	if !isMinioMetaBucketName(bucket) && s3utils.CheckValidBucketNameStrict(bucket) != nil {
		return BucketNameInvalid{Bucket: bucket}
	}
	// Verify if object is valid.
	if len(object) == 0 {
		return ObjectNameInvalid{Bucket: bucket, Object: object}

		tgtEOF = !tgtOk

		// No objects from source AND target: Finish
		if srcEOF && tgtEOF {
			break
		}

		if !srcEOF && srcCtnt.Err != nil {
			log.Fatal(srcCtnt.Err)
		}

		if !tgtEOF && tgtCtnt.Err != nil {
			log.Fatal(tgtCtnt.Err)
		}

		// If source doesn't have objects anymore, comparison becomes obvious
		if srcEOF {
			fmt.Printf("only in target: %s\n", tgtCtnt.Key)

	// write "obj"
	err = en.Append(0x83, 0xa3, 0x6f, 0x62, 0x6a)
	if err != nil {
		return
	}
	err = en.WriteString(z.ObjName)
	if err != nil {
		err = msgp.WrapError(err, "ObjName")
		return
	}
	// write "vid"
	err = en.Append(0xa3, 0x76, 0x69, 0x64)
	if err != nil {
		return
	}
	err = en.WriteString(z.VersionID)
	if err != nil {
		err = msgp.WrapError(err, "VersionID")
		return
	}

		return err
	}
	if err := r.validateFilter(); err != nil {
		return err
	}
	if err := r.DeleteMarkerReplication.Validate(); err != nil {
		return err
	}
	if err := r.DeleteReplication.Validate(); err != nil {
		return err
	}
	if err := r.SourceSelectionCriteria.Validate(); err != nil {
		return err
	}

	if r.Priority < 0 {
		return errPriorityMissing
	}

	if !f.And.isEmpty() {
		if f.Prefix != "" {
			return errInvalidFilter
		}
		if !f.Tag.IsEmpty() {
			return errInvalidFilter
		}
		if err := f.And.Validate(); err != nil {
			return err
		}
	}
	if f.Prefix != "" {
		if !f.Tag.IsEmpty() {
			return errInvalidFilter
		}
	}
	if !f.Tag.IsEmpty() {
		if err := f.Tag.Validate(); err != nil {
			return err
		}

	err = en.Append(0xa1, 0x6d)
	if err != nil {
		return
	}
	err = en.WriteInt(z.ScanMode)
	if err != nil {
		err = msgp.WrapError(err, "ScanMode")
		return
	}
	// write "c"
	err = en.Append(0xa1, 0x63)
	if err != nil {
		return
	}
	if z.Cache == nil {
		err = en.WriteNil()
		if err != nil {
			return
		}
	} else {
		err = z.Cache.EncodeMsg(en)
		if err != nil {