diff options
Diffstat (limited to 'vendor/github.com/hashicorp/go-sockaddr/sockaddr.go')
-rw-r--r-- | vendor/github.com/hashicorp/go-sockaddr/sockaddr.go | 206 |
1 files changed, 0 insertions, 206 deletions
diff --git a/vendor/github.com/hashicorp/go-sockaddr/sockaddr.go b/vendor/github.com/hashicorp/go-sockaddr/sockaddr.go deleted file mode 100644 index 826c91c..0000000 --- a/vendor/github.com/hashicorp/go-sockaddr/sockaddr.go +++ /dev/null @@ -1,206 +0,0 @@ -package sockaddr - -import ( - "encoding/json" - "fmt" - "strings" -) - -type SockAddrType int -type AttrName string - -const ( - TypeUnknown SockAddrType = 0x0 - TypeUnix = 0x1 - TypeIPv4 = 0x2 - TypeIPv6 = 0x4 - - // TypeIP is the union of TypeIPv4 and TypeIPv6 - TypeIP = 0x6 -) - -type SockAddr interface { - // CmpRFC returns 0 if SockAddr exactly matches one of the matched RFC - // networks, -1 if the receiver is contained within the RFC network, or - // 1 if the address is not contained within the RFC. - CmpRFC(rfcNum uint, sa SockAddr) int - - // Contains returns true if the SockAddr arg is contained within the - // receiver - Contains(SockAddr) bool - - // Equal allows for the comparison of two SockAddrs - Equal(SockAddr) bool - - DialPacketArgs() (string, string) - DialStreamArgs() (string, string) - ListenPacketArgs() (string, string) - ListenStreamArgs() (string, string) - - // String returns the string representation of SockAddr - String() string - - // Type returns the SockAddrType - Type() SockAddrType -} - -// sockAddrAttrMap is a map of the SockAddr type-specific attributes. -var sockAddrAttrMap map[AttrName]func(SockAddr) string -var sockAddrAttrs []AttrName - -func init() { - sockAddrInit() -} - -// New creates a new SockAddr from the string. The order in which New() -// attempts to construct a SockAddr is: IPv4Addr, IPv6Addr, SockAddrUnix. -// -// NOTE: New() relies on the heuristic wherein if the path begins with either a -// '.' or '/' character before creating a new UnixSock. For UNIX sockets that -// are absolute paths or are nested within a sub-directory, this works as -// expected, however if the UNIX socket is contained in the current working -// directory, this will fail unless the path begins with "./" -// (e.g. "./my-local-socket"). Calls directly to NewUnixSock() do not suffer -// this limitation. Invalid IP addresses such as "256.0.0.0/-1" will run afoul -// of this heuristic and be assumed to be a valid UNIX socket path (which they -// are, but it is probably not what you want and you won't realize it until you -// stat(2) the file system to discover it doesn't exist). -func NewSockAddr(s string) (SockAddr, error) { - ipv4Addr, err := NewIPv4Addr(s) - if err == nil { - return ipv4Addr, nil - } - - ipv6Addr, err := NewIPv6Addr(s) - if err == nil { - return ipv6Addr, nil - } - - // Check to make sure the string begins with either a '.' or '/', or - // contains a '/'. - if len(s) > 1 && (strings.IndexAny(s[0:1], "./") != -1 || strings.IndexByte(s, '/') != -1) { - unixSock, err := NewUnixSock(s) - if err == nil { - return unixSock, nil - } - } - - return nil, fmt.Errorf("Unable to convert %q to an IPv4 or IPv6 address, or a UNIX Socket", s) -} - -// ToIPAddr returns an IPAddr type or nil if the type conversion fails. -func ToIPAddr(sa SockAddr) *IPAddr { - ipa, ok := sa.(IPAddr) - if !ok { - return nil - } - return &ipa -} - -// ToIPv4Addr returns an IPv4Addr type or nil if the type conversion fails. -func ToIPv4Addr(sa SockAddr) *IPv4Addr { - switch v := sa.(type) { - case IPv4Addr: - return &v - default: - return nil - } -} - -// ToIPv6Addr returns an IPv6Addr type or nil if the type conversion fails. -func ToIPv6Addr(sa SockAddr) *IPv6Addr { - switch v := sa.(type) { - case IPv6Addr: - return &v - default: - return nil - } -} - -// ToUnixSock returns a UnixSock type or nil if the type conversion fails. -func ToUnixSock(sa SockAddr) *UnixSock { - switch v := sa.(type) { - case UnixSock: - return &v - default: - return nil - } -} - -// SockAddrAttr returns a string representation of an attribute for the given -// SockAddr. -func SockAddrAttr(sa SockAddr, selector AttrName) string { - fn, found := sockAddrAttrMap[selector] - if !found { - return "" - } - - return fn(sa) -} - -// String() for SockAddrType returns a string representation of the -// SockAddrType (e.g. "IPv4", "IPv6", "UNIX", "IP", or "unknown"). -func (sat SockAddrType) String() string { - switch sat { - case TypeIPv4: - return "IPv4" - case TypeIPv6: - return "IPv6" - // There is no concrete "IP" type. Leaving here as a reminder. - // case TypeIP: - // return "IP" - case TypeUnix: - return "UNIX" - default: - panic("unsupported type") - } -} - -// sockAddrInit is called once at init() -func sockAddrInit() { - sockAddrAttrs = []AttrName{ - "type", // type should be first - "string", - } - - sockAddrAttrMap = map[AttrName]func(sa SockAddr) string{ - "string": func(sa SockAddr) string { - return sa.String() - }, - "type": func(sa SockAddr) string { - return sa.Type().String() - }, - } -} - -// UnixSockAttrs returns a list of attributes supported by the UnixSock type -func SockAddrAttrs() []AttrName { - return sockAddrAttrs -} - -// Although this is pretty trivial to do in a program, having the logic here is -// useful all around. Note that this marshals into a *string* -- the underlying -// string representation of the sockaddr. If you then unmarshal into this type -// in Go, all will work as expected, but externally you can take what comes out -// and use the string value directly. -type SockAddrMarshaler struct { - SockAddr -} - -func (s *SockAddrMarshaler) MarshalJSON() ([]byte, error) { - return json.Marshal(s.SockAddr.String()) -} - -func (s *SockAddrMarshaler) UnmarshalJSON(in []byte) error { - var str string - err := json.Unmarshal(in, &str) - if err != nil { - return err - } - sa, err := NewSockAddr(str) - if err != nil { - return err - } - s.SockAddr = sa - return nil -} |