func()

in image/image.go [613:646]

• 29 lines of code
• 6 McCabe index (conditional complexity)

func (img *Image) CollectSigs() ([]sec.Sig, error) {
	var sigs []sec.Sig

	var keyHashTlv *ImageTlv
	for i, _ := range img.Tlvs {
		t := &img.Tlvs[i]

		if t.Header.Type == IMAGE_TLV_KEYHASH {
			if keyHashTlv != nil {
				return nil, errors.Errorf(
					"image contains keyhash tlv without subsequent signature")
			}
			keyHashTlv = t
		} else {
			sigType, ok := ImageTlvTypeToSigType(t.Header.Type)
			if ok {
				if keyHashTlv == nil {
					return nil, errors.Errorf(
						"image contains signature tlv without preceding keyhash")
				}

				sigs = append(sigs, sec.Sig{
					Type:    sigType,
					KeyHash: keyHashTlv.Data,
					Data:    t.Data,
				})

				keyHashTlv = nil
			}
		}
	}

	return sigs, nil
}