mirror of
https://github.com/reactos/syzkaller.git
synced 2024-11-23 03:19:51 +00:00
2b854f96b1
The syz-expand tools allows to parse a program and print it including all the default values. This is mainly useful for debugging, like doing manual program modifications while trying to come up with a reproducer for some particular kernel behavior.
53 lines
1.2 KiB
Go
53 lines
1.2 KiB
Go
// Copyright 2019 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.
|
|
|
|
// Parses a program and prints it including all default values.
|
|
|
|
package main
|
|
|
|
import (
|
|
"flag"
|
|
"fmt"
|
|
"io/ioutil"
|
|
"os"
|
|
"runtime"
|
|
|
|
"github.com/google/syzkaller/prog"
|
|
_ "github.com/google/syzkaller/sys"
|
|
)
|
|
|
|
var (
|
|
flagOS = flag.String("os", runtime.GOOS, "target os")
|
|
flagArch = flag.String("arch", runtime.GOARCH, "target arch")
|
|
flagProg = flag.String("prog", "", "file with program to expand")
|
|
flagStrict = flag.Bool("strict", false, "parse input program in strict mode")
|
|
)
|
|
|
|
func main() {
|
|
flag.Parse()
|
|
if *flagProg == "" {
|
|
flag.Usage()
|
|
os.Exit(1)
|
|
}
|
|
target, err := prog.GetTarget(*flagOS, *flagArch)
|
|
if err != nil {
|
|
fmt.Fprintf(os.Stderr, "%v", err)
|
|
os.Exit(1)
|
|
}
|
|
data, err := ioutil.ReadFile(*flagProg)
|
|
if err != nil {
|
|
fmt.Fprintf(os.Stderr, "failed to read prog file: %v\n", err)
|
|
os.Exit(1)
|
|
}
|
|
mode := prog.NonStrict
|
|
if *flagStrict {
|
|
mode = prog.Strict
|
|
}
|
|
p, err := target.Deserialize(data, mode)
|
|
if err != nil {
|
|
fmt.Fprintf(os.Stderr, "failed to deserialize the program: %v\n", err)
|
|
os.Exit(1)
|
|
}
|
|
fmt.Printf("%s", p.SerializeVerbose())
|
|
}
|