mirror of
https://github.com/Luzifer/vault-openvpn.git
synced 2024-12-27 23:31:20 +00:00
135 lines
3.3 KiB
Go
135 lines
3.3 KiB
Go
package sockaddr
|
|
|
|
import (
|
|
"fmt"
|
|
"strings"
|
|
)
|
|
|
|
type UnixSock struct {
|
|
SockAddr
|
|
path string
|
|
}
|
|
type UnixSocks []*UnixSock
|
|
|
|
// unixAttrMap is a map of the UnixSockAddr type-specific attributes.
|
|
var unixAttrMap map[AttrName]func(UnixSock) string
|
|
var unixAttrs []AttrName
|
|
|
|
func init() {
|
|
unixAttrInit()
|
|
}
|
|
|
|
// NewUnixSock creates an UnixSock from a string path. String can be in the
|
|
// form of either URI-based string (e.g. `file:///etc/passwd`), an absolute
|
|
// path (e.g. `/etc/passwd`), or a relative path (e.g. `./foo`).
|
|
func NewUnixSock(s string) (ret UnixSock, err error) {
|
|
ret.path = s
|
|
return ret, nil
|
|
}
|
|
|
|
// CmpAddress follows the Cmp() standard protocol and returns:
|
|
//
|
|
// - -1 If the receiver should sort first because its name lexically sorts before arg
|
|
// - 0 if the SockAddr arg is not a UnixSock, or is a UnixSock with the same path.
|
|
// - 1 If the argument should sort first.
|
|
func (us UnixSock) CmpAddress(sa SockAddr) int {
|
|
usb, ok := sa.(UnixSock)
|
|
if !ok {
|
|
return sortDeferDecision
|
|
}
|
|
|
|
return strings.Compare(us.Path(), usb.Path())
|
|
}
|
|
|
|
// DialPacketArgs returns the arguments required to be passed to net.DialUnix()
|
|
// with the `unixgram` network type.
|
|
func (us UnixSock) DialPacketArgs() (network, dialArgs string) {
|
|
return "unixgram", us.path
|
|
}
|
|
|
|
// DialStreamArgs returns the arguments required to be passed to net.DialUnix()
|
|
// with the `unix` network type.
|
|
func (us UnixSock) DialStreamArgs() (network, dialArgs string) {
|
|
return "unix", us.path
|
|
}
|
|
|
|
// Equal returns true if a SockAddr is equal to the receiving UnixSock.
|
|
func (us UnixSock) Equal(sa SockAddr) bool {
|
|
usb, ok := sa.(UnixSock)
|
|
if !ok {
|
|
return false
|
|
}
|
|
|
|
if us.Path() != usb.Path() {
|
|
return false
|
|
}
|
|
|
|
return true
|
|
}
|
|
|
|
// ListenPacketArgs returns the arguments required to be passed to
|
|
// net.ListenUnixgram() with the `unixgram` network type.
|
|
func (us UnixSock) ListenPacketArgs() (network, dialArgs string) {
|
|
return "unixgram", us.path
|
|
}
|
|
|
|
// ListenStreamArgs returns the arguments required to be passed to
|
|
// net.ListenUnix() with the `unix` network type.
|
|
func (us UnixSock) ListenStreamArgs() (network, dialArgs string) {
|
|
return "unix", us.path
|
|
}
|
|
|
|
// MustUnixSock is a helper method that must return an UnixSock or panic on
|
|
// invalid input.
|
|
func MustUnixSock(addr string) UnixSock {
|
|
us, err := NewUnixSock(addr)
|
|
if err != nil {
|
|
panic(fmt.Sprintf("Unable to create a UnixSock from %+q: %v", addr, err))
|
|
}
|
|
return us
|
|
}
|
|
|
|
// Path returns the given path of the UnixSock
|
|
func (us UnixSock) Path() string {
|
|
return us.path
|
|
}
|
|
|
|
// String returns the path of the UnixSock
|
|
func (us UnixSock) String() string {
|
|
return fmt.Sprintf("%+q", us.path)
|
|
}
|
|
|
|
// Type is used as a type switch and returns TypeUnix
|
|
func (UnixSock) Type() SockAddrType {
|
|
return TypeUnix
|
|
}
|
|
|
|
// UnixSockAttrs returns a list of attributes supported by the UnixSockAddr type
|
|
func UnixSockAttrs() []AttrName {
|
|
return unixAttrs
|
|
}
|
|
|
|
// UnixSockAttr returns a string representation of an attribute for the given
|
|
// UnixSock.
|
|
func UnixSockAttr(us UnixSock, attrName AttrName) string {
|
|
fn, found := unixAttrMap[attrName]
|
|
if !found {
|
|
return ""
|
|
}
|
|
|
|
return fn(us)
|
|
}
|
|
|
|
// unixAttrInit is called once at init()
|
|
func unixAttrInit() {
|
|
// Sorted for human readability
|
|
unixAttrs = []AttrName{
|
|
"path",
|
|
}
|
|
|
|
unixAttrMap = map[AttrName]func(us UnixSock) string{
|
|
"path": func(us UnixSock) string {
|
|
return us.Path()
|
|
},
|
|
}
|
|
}
|