| // 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" |
| fidl "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 := fidl.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) |
| } |
| } |