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31
vendor/github.com/google/uuid/node.go
generated
vendored
31
vendor/github.com/google/uuid/node.go
generated
vendored
@ -5,16 +5,14 @@
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package uuid
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import (
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"net"
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"sync"
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)
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var (
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nodeMu sync.Mutex
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interfaces []net.Interface // cached list of interfaces
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ifname string // name of interface being used
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nodeID [6]byte // hardware for version 1 UUIDs
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zeroID [6]byte // nodeID with only 0's
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nodeMu sync.Mutex
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ifname string // name of interface being used
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nodeID [6]byte // hardware for version 1 UUIDs
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zeroID [6]byte // nodeID with only 0's
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)
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// NodeInterface returns the name of the interface from which the NodeID was
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@ -39,20 +37,12 @@ func SetNodeInterface(name string) bool {
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}
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func setNodeInterface(name string) bool {
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if interfaces == nil {
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var err error
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interfaces, err = net.Interfaces()
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if err != nil && name != "" {
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return false
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}
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}
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for _, ifs := range interfaces {
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if len(ifs.HardwareAddr) >= 6 && (name == "" || name == ifs.Name) {
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copy(nodeID[:], ifs.HardwareAddr)
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ifname = ifs.Name
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return true
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}
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iname, addr := getHardwareInterface(name) // null implementation for js
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if iname != "" && addr != nil {
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ifname = iname
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copy(nodeID[:], addr)
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return true
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}
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// We found no interfaces with a valid hardware address. If name
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@ -94,9 +84,6 @@ func SetNodeID(id []byte) bool {
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// NodeID returns the 6 byte node id encoded in uuid. It returns nil if uuid is
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// not valid. The NodeID is only well defined for version 1 and 2 UUIDs.
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func (uuid UUID) NodeID() []byte {
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if len(uuid) != 16 {
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return nil
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}
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var node [6]byte
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copy(node[:], uuid[10:])
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return node[:]
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