Initial import

protocol/protocol.go

@@ -0,0 +1,47 @@
+package protocol
+
+import (
+	"strconv"
+	"strings"
+)
+
+// Protocols supported by this package.
+const (
+	ProtocolDNS        = "dns"
+	ProtocolHTTP       = "http"
+	ProtocolMySQL      = "mysql"
+	ProtocolPostgreSQL = "postgresql"
+	ProtocolSSH        = "ssh"
+	ProtocolSSL        = "ssl"
+	ProtocolTLS        = "tls"
+)
+
+type Protocol struct {
+	Name    string
+	Version Version
+}
+
+type Version struct {
+	Major int
+	Minor int
+	Patch int
+	Extra string
+}
+
+func (v Version) String() string {
+	p := make([]string, 0, 3)
+	if v.Major >= 0 {
+		p = append(p, strconv.Itoa(v.Major))
+		if v.Minor >= 0 {
+			p = append(p, strconv.Itoa(v.Minor))
+			if v.Patch >= 0 {
+				p = append(p, strconv.Itoa(v.Patch))
+			}
+		}
+	}
+	s := strings.Join(p, ".")
+	if v.Extra != "" {
+		return s + "-" + v.Extra
+	}
+	return s
+}