go-multiaddr/protocols.go

55 lines
1.1 KiB
Go

package multiaddr
// Protocol is a Multiaddr protocol description structure.
type Protocol struct {
Code int
Size int
Name string
}
// replicating table here to:
// 1. avoid parsing the csv
// 2. ensuring errors in the csv don't screw up code.
// 3. changing a number has to happen in two places.
const (
P_IP4 = 4
P_TCP = 6
P_UDP = 17
P_DCCP = 33
P_IP6 = 41
P_SCTP = 132
)
// Protocols is the list of multiaddr protocols supported by this module.
var Protocols = []*Protocol{
&Protocol{P_IP4, 32, "ip4"},
&Protocol{P_TCP, 16, "tcp"},
&Protocol{P_UDP, 16, "udp"},
&Protocol{P_DCCP, 16, "dccp"},
&Protocol{P_IP6, 128, "ip6"},
// these require varint:
&Protocol{P_SCTP, 16, "sctp"},
// {480, 0, "http"},
// {443, 0, "https"},
}
// ProtocolWithName returns the Protocol description with given string name.
func ProtocolWithName(s string) *Protocol {
for _, p := range Protocols {
if p.Name == s {
return p
}
}
return nil
}
// ProtocolWithCode returns the Protocol description with given protocol code.
func ProtocolWithCode(c int) *Protocol {
for _, p := range Protocols {
if p.Code == c {
return p
}
}
return nil
}