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481b5b230d
All validation has been moved to the API resources layer, i.e. the domain objects provide validation method, but the service itself assumes no corrupted values are passed to it. Signed-off-by: Dejan Mijic <dejan@mainflux.com>
37 lines
1.2 KiB
Go
37 lines
1.2 KiB
Go
// Copyright 2012 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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// +build !nacl,!plan9,!windows
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package ipv4
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import (
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"net"
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"syscall"
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)
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// ReadFrom reads a payload of the received IPv4 datagram, from the
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// endpoint c, copying the payload into b. It returns the number of
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// bytes copied into b, the control message cm and the source address
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// src of the received datagram.
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func (c *payloadHandler) ReadFrom(b []byte) (n int, cm *ControlMessage, src net.Addr, err error) {
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if !c.ok() {
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return 0, nil, nil, syscall.EINVAL
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}
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return c.readFrom(b)
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}
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// WriteTo writes a payload of the IPv4 datagram, to the destination
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// address dst through the endpoint c, copying the payload from b. It
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// returns the number of bytes written. The control message cm allows
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// the datagram path and the outgoing interface to be specified.
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// Currently only Darwin and Linux support this. The cm may be nil if
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// control of the outgoing datagram is not required.
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func (c *payloadHandler) WriteTo(b []byte, cm *ControlMessage, dst net.Addr) (n int, err error) {
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if !c.ok() {
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return 0, syscall.EINVAL
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}
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return c.writeTo(b, cm, dst)
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}
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