gtsocial-umbx

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genericopt.go (1300B)

      1 // Copyright 2013 The Go Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style
      3 // license that can be found in the LICENSE file.
      4 
      5 package ipv6
      6 
      7 // TrafficClass returns the traffic class field value for outgoing
      8 // packets.
      9 func (c *genericOpt) TrafficClass() (int, error) {
     10 	if !c.ok() {
     11 		return 0, errInvalidConn
     12 	}
     13 	so, ok := sockOpts[ssoTrafficClass]
     14 	if !ok {
     15 		return 0, errNotImplemented
     16 	}
     17 	return so.GetInt(c.Conn)
     18 }
     19 
     20 // SetTrafficClass sets the traffic class field value for future
     21 // outgoing packets.
     22 func (c *genericOpt) SetTrafficClass(tclass int) error {
     23 	if !c.ok() {
     24 		return errInvalidConn
     25 	}
     26 	so, ok := sockOpts[ssoTrafficClass]
     27 	if !ok {
     28 		return errNotImplemented
     29 	}
     30 	return so.SetInt(c.Conn, tclass)
     31 }
     32 
     33 // HopLimit returns the hop limit field value for outgoing packets.
     34 func (c *genericOpt) HopLimit() (int, error) {
     35 	if !c.ok() {
     36 		return 0, errInvalidConn
     37 	}
     38 	so, ok := sockOpts[ssoHopLimit]
     39 	if !ok {
     40 		return 0, errNotImplemented
     41 	}
     42 	return so.GetInt(c.Conn)
     43 }
     44 
     45 // SetHopLimit sets the hop limit field value for future outgoing
     46 // packets.
     47 func (c *genericOpt) SetHopLimit(hoplim int) error {
     48 	if !c.ok() {
     49 		return errInvalidConn
     50 	}
     51 	so, ok := sockOpts[ssoHopLimit]
     52 	if !ok {
     53 		return errNotImplemented
     54 	}
     55 	return so.SetInt(c.Conn, hoplim)
     56 }