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https://github.com/mainflux/mainflux.git
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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>
43 lines
967 B
Go
43 lines
967 B
Go
// Copyright 2014 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 darwin freebsd linux
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package ipv4
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import (
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"net"
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"unsafe"
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"golang.org/x/net/internal/socket"
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)
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func (so *sockOpt) getIPMreqn(c *socket.Conn) (*net.Interface, error) {
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b := make([]byte, so.Len)
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if _, err := so.Get(c, b); err != nil {
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return nil, err
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}
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mreqn := (*ipMreqn)(unsafe.Pointer(&b[0]))
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if mreqn.Ifindex == 0 {
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return nil, nil
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}
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ifi, err := net.InterfaceByIndex(int(mreqn.Ifindex))
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if err != nil {
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return nil, err
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}
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return ifi, nil
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}
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func (so *sockOpt) setIPMreqn(c *socket.Conn, ifi *net.Interface, grp net.IP) error {
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var mreqn ipMreqn
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if ifi != nil {
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mreqn.Ifindex = int32(ifi.Index)
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}
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if grp != nil {
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mreqn.Multiaddr = [4]byte{grp[0], grp[1], grp[2], grp[3]}
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}
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b := (*[sizeofIPMreqn]byte)(unsafe.Pointer(&mreqn))[:sizeofIPMreqn]
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return so.Set(c, b)
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}
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