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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>
63 lines
1.3 KiB
Go
63 lines
1.3 KiB
Go
// Copyright 2017 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 !go1.9
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package socket
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import (
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"errors"
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"net"
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"os"
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"reflect"
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"runtime"
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)
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// A Conn represents a raw connection.
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type Conn struct {
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c net.Conn
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}
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// NewConn returns a new raw connection.
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func NewConn(c net.Conn) (*Conn, error) {
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return &Conn{c: c}, nil
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}
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func (o *Option) get(c *Conn, b []byte) (int, error) {
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s, err := socketOf(c.c)
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if err != nil {
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return 0, err
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}
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n, err := getsockopt(s, o.Level, o.Name, b)
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return n, os.NewSyscallError("getsockopt", err)
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}
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func (o *Option) set(c *Conn, b []byte) error {
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s, err := socketOf(c.c)
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if err != nil {
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return err
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}
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return os.NewSyscallError("setsockopt", setsockopt(s, o.Level, o.Name, b))
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}
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func socketOf(c net.Conn) (uintptr, error) {
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switch c.(type) {
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case *net.TCPConn, *net.UDPConn, *net.IPConn:
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v := reflect.ValueOf(c)
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switch e := v.Elem(); e.Kind() {
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case reflect.Struct:
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fd := e.FieldByName("conn").FieldByName("fd")
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switch e := fd.Elem(); e.Kind() {
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case reflect.Struct:
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sysfd := e.FieldByName("sysfd")
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if runtime.GOOS == "windows" {
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return uintptr(sysfd.Uint()), nil
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}
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return uintptr(sysfd.Int()), nil
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}
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}
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}
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return 0, errors.New("invalid type")
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}
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