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// Copyright 2021 syzkaller project authors. All rights reserved.
// Use of this source code is governed by Apache 2 LICENSE that can be found in the LICENSE file.
//go:build freebsd || netbsd || openbsd || darwin
// +build freebsd netbsd openbsd darwin
package osutil
import (
"fmt"
"io/ioutil"
"os"
)
func CreateSharedMemFile(size int) (f *os.File, err error) {
f, err = ioutil.TempFile("./", "syzkaller-shm")
if err != nil {
err = fmt.Errorf("failed to create temp file: %v", err)
return
}
f.Close()
fname := f.Name()
f, err = os.OpenFile(f.Name(), os.O_RDWR, DefaultFilePerm)
if err != nil {
err = fmt.Errorf("failed to open shm file: %v", err)
os.Remove(fname)
}
return
}
func CloseSharedMemFile(f *os.File) error {
err1 := f.Close()
err2 := os.Remove(f.Name())
switch {
case err1 != nil:
return err1
case err2 != nil:
return err2
default:
return nil
}
}
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