blob: e7e9fa56ebd4418d0877e91ab7074f42138b37cd [file] [log] [blame]
// Copyright 2020 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
package main
import (
"bytes"
"flag"
"fmt"
"io/ioutil"
"log"
"os"
"path"
"go.fuchsia.dev/fuchsia/tools/fidl/fidlgen_syzkaller/codegen"
"go.fuchsia.dev/fuchsia/tools/fidl/lib/fidlgen"
)
type flagsDef struct {
jsonPath *string
outputPath *string
}
var flags = flagsDef{
jsonPath: flag.String("json", "",
"relative path to the FIDL intermediate representation."),
outputPath: flag.String("output-syz", "",
"output path for the generated syz.txt file."),
}
// valid returns true if the parsed flags are valid.
func (f flagsDef) valid() bool {
return *f.jsonPath != "" && *f.outputPath != ""
}
func printUsage() {
program := path.Base(os.Args[0])
message := `Usage: ` + program + ` [flags]
Syzkaller FIDL backend, used to generate Syzkaller bindings from JSON IR input
(the intermediate representation of a FIDL library).
Flags:
`
fmt.Fprint(flag.CommandLine.Output(), message)
flag.PrintDefaults()
}
func main() {
flag.Usage = printUsage
flag.Parse()
if !flag.Parsed() || !flags.valid() {
printUsage()
os.Exit(1)
}
root, err := fidlgen.ReadJSONIr(*flags.jsonPath)
if err != nil {
log.Fatalf("Failed to read JSON: %v", err)
}
var buf bytes.Buffer
if err := codegen.Compile(&buf, root); err != nil {
log.Fatalf("Failed to compile syzkaller description: %v", err)
}
if err := ioutil.WriteFile(*flags.outputPath, buf.Bytes(), 0666); err != nil {
log.Fatalf("Failed to write output file: %v", err)
}
}