mirror of
https://github.com/weaveworks/scope.git
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6bb6d4dd5a
We'd like to benefit from the memory reduction from: https://github.com/google/gopacket/pull/377 I just ran: $ gvt update github.com/google/gopacket Fixes: https://github.com/weaveworks/scope/issues/2905
58 lines
969 B
Go
58 lines
969 B
Go
// Copyright 2012 Google, Inc. All rights reserved.
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//
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// Use of this source code is governed by a BSD-style license
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// that can be found in the LICENSE file in the root of the source
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// tree.
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// +build linux,386
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package afpacket
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import (
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"unsafe"
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"golang.org/x/sys/unix"
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)
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const (
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sysSETSOCKOPT = 0xe
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sysGETSOCKOPT = 0xf
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)
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func socketcall(call int, a0, a1, a2, a3, a4, a5 uintptr) (int, unix.Errno)
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// setsockopt provides access to the setsockopt syscall.
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func setsockopt(fd, level, name int, v unsafe.Pointer, l uintptr) error {
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_, errno := socketcall(
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sysSETSOCKOPT,
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uintptr(fd),
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uintptr(level),
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uintptr(name),
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uintptr(v),
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l,
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0,
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)
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if errno != 0 {
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return error(errno)
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}
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return nil
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}
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func getsockopt(fd, level, name int, v unsafe.Pointer, l uintptr) error {
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_, errno := socketcall(
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sysGETSOCKOPT,
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uintptr(fd),
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uintptr(level),
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uintptr(name),
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uintptr(v),
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l,
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0,
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)
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if errno != 0 {
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return error(errno)
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}
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return nil
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}
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