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58 lines
1.3 KiB
58 lines
1.3 KiB
// Copyright 2013 The Go Authors. All rights reserved. |
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// Use of this source code is governed by a BSD-style |
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// license that can be found in the LICENSE file. |
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package ipv6 |
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import "syscall" |
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// TrafficClass returns the traffic class field value for outgoing |
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// packets. |
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func (c *genericOpt) TrafficClass() (int, error) { |
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if !c.ok() { |
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return 0, syscall.EINVAL |
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} |
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so, ok := sockOpts[ssoTrafficClass] |
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if !ok { |
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return 0, errOpNoSupport |
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} |
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return so.GetInt(c.Conn) |
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} |
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// SetTrafficClass sets the traffic class field value for future |
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// outgoing packets. |
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func (c *genericOpt) SetTrafficClass(tclass int) error { |
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if !c.ok() { |
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return syscall.EINVAL |
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} |
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so, ok := sockOpts[ssoTrafficClass] |
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if !ok { |
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return errOpNoSupport |
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} |
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return so.SetInt(c.Conn, tclass) |
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} |
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// HopLimit returns the hop limit field value for outgoing packets. |
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func (c *genericOpt) HopLimit() (int, error) { |
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if !c.ok() { |
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return 0, syscall.EINVAL |
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} |
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so, ok := sockOpts[ssoHopLimit] |
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if !ok { |
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return 0, errOpNoSupport |
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} |
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return so.GetInt(c.Conn) |
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} |
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// SetHopLimit sets the hop limit field value for future outgoing |
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// packets. |
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func (c *genericOpt) SetHopLimit(hoplim int) error { |
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if !c.ok() { |
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return syscall.EINVAL |
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} |
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so, ok := sockOpts[ssoHopLimit] |
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if !ok { |
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return errOpNoSupport |
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} |
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return so.SetInt(c.Conn, hoplim) |
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}
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