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56 lines
1016 B
56 lines
1016 B
package net
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import (
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"errors"
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"strconv"
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"github.com/v2ray/v2ray-core/common/serial"
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)
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var (
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// ErrorInvalidPortRage indicates an error during port range parsing.
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ErrorInvalidPortRange = errors.New("Invalid port range.")
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)
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type Port serial.Uint16Literal
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func PortFromBytes(port []byte) Port {
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return Port(serial.BytesLiteral(port).Uint16Value())
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}
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func PortFromInt(v int) (Port, error) {
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if v <= 0 || v > 65535 {
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return Port(0), ErrorInvalidPortRange
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}
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return Port(v), nil
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}
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func PortFromString(s string) (Port, error) {
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v, err := strconv.Atoi(s)
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if err != nil {
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return Port(0), ErrorInvalidPortRange
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}
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return PortFromInt(v)
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}
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func (this Port) Value() uint16 {
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return uint16(this)
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}
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func (this Port) Bytes() []byte {
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return serial.Uint16Literal(this).Bytes()
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}
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func (this Port) String() string {
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return serial.Uint16Literal(this).String()
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}
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type PortRange struct {
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From Port
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To Port
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}
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func (this PortRange) Contains(port Port) bool {
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return this.From <= port && port <= this.To
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}
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