mirror of
https://github.com/netbirdio/gvisor.git
synced 2026-05-22 17:12:49 -07:00
40 lines
1.0 KiB
Go
40 lines
1.0 KiB
Go
// Copyright 2023 The gVisor Authors.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
//go:build network_plugins
|
|
// +build network_plugins
|
|
|
|
package cgo
|
|
|
|
import (
|
|
"unsafe"
|
|
)
|
|
|
|
// GetPtr gets []byte's start address and converts the address into
|
|
// unsafe.Pointer that will be used as C pointer.
|
|
func GetPtr(bs []byte) unsafe.Pointer {
|
|
if len(bs) == 0 {
|
|
return nil
|
|
}
|
|
return unsafe.Pointer(&bs[0])
|
|
}
|
|
|
|
func convertRetVal(ret int64, errno uint64) int64 {
|
|
if ret < 0 {
|
|
return -int64(errno)
|
|
} else {
|
|
return ret
|
|
}
|
|
}
|