package main import ( "flag" "fmt" "os" "github.com/criyle/go-judger/runconfig" "github.com/criyle/go-judger/runprogram" "github.com/criyle/go-judger/tracer" ) func printUsage() { fmt.Fprintf(flag.CommandLine.Output(), "Usage: %s [options] \n", os.Args[0]) flag.PrintDefaults() os.Exit(2) } func main() { var ( addReadable, addWritable, addRawReadable, addRawWritable arrayFlags allowProc, unsafe, showDetails bool pType, result string timeLimit, realTimeLimit, memoryLimit, outputLimit, stackLimit uint inputFileName, outputFileName, errorFileName, workPath string ) flag.Usage = printUsage flag.UintVar(&timeLimit, "tl", 1, "Set time limit (in second)") flag.UintVar(&realTimeLimit, "rtl", 0, "Set real time limit (in second)") flag.UintVar(&memoryLimit, "ml", 256, "Set memory limit (in mb)") flag.UintVar(&outputLimit, "ol", 64, "Set output limit (in mb)") flag.UintVar(&stackLimit, "sl", 1024, "Set stack limit (in mb)") flag.StringVar(&inputFileName, "in", "", "Set input file name") flag.StringVar(&outputFileName, "out", "", "Set output file name") flag.StringVar(&errorFileName, "err", "", "Set error file name") flag.StringVar(&workPath, "work-path", "", "Set the work path of the program") flag.StringVar(&pType, "type", "default", "Set the program type (for some program such as python)") flag.StringVar(&result, "res", "stdout", "Set the file name for output the result") flag.Var(&addReadable, "add-readable", "Add a readable file") flag.Var(&addWritable, "add-writable", "Add a writable file") flag.BoolVar(&unsafe, "unsafe", false, "Don't check dangerous syscalls") flag.BoolVar(&showDetails, "show-trace-details", false, "Show trace details") flag.BoolVar(&allowProc, "allow-proc", false, "Allow fork, exec... etc.") flag.Var(&addRawReadable, "add-readable-raw", "Add a readable file (don't transform to its real path)") flag.Var(&addRawWritable, "add-writable-raw", "Add a writable file (don't transform to its real path)") flag.Parse() args := flag.Args() if len(args) == 0 { printUsage() } println := func(v ...interface{}) { if showDetails { fmt.Fprintln(os.Stderr, v...) } } if realTimeLimit < timeLimit { realTimeLimit = timeLimit + 2 } if stackLimit > memoryLimit { stackLimit = memoryLimit } if workPath == "" { workPath, _ = os.Getwd() } addRead := runconfig.GetExtraSet(addReadable, addRawReadable) addWrite := runconfig.GetExtraSet(addWritable, addRawWritable) h := runconfig.GetConf(pType, workPath, args, addRead, addWrite, allowProc, showDetails) // open input / output / err files files, err := prepareFiles(inputFileName, outputFileName, errorFileName) if err != nil { println(err) os.Exit(1) } defer closeFiles(files) // if not defined, then use the original value fds := make([]uintptr, len(files)) for i, f := range files { if f != nil { fds[i] = f.Fd() } else { fds[i] = uintptr(i) } } runner := &runprogram.RunProgram{ Args: h.Args, Env: []string{"PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"}, WorkDir: workPath, RLimits: runprogram.RLimits{ CPU: timeLimit, CPUHard: realTimeLimit, FileSize: outputLimit, Stack: stackLimit, }, TraceLimit: runprogram.TraceLimit{ TimeLimit: uint64(timeLimit * 1e3), RealTimeLimit: uint64(realTimeLimit * 1e3), MemoryLimit: uint64(memoryLimit << 10), }, Files: fds, SyscallAllowed: h.SyscallAllow, SyscallTraced: h.SyscallTrace, ShowDetails: showDetails, Unsafe: unsafe, Handler: h, } var f *os.File if result == "stdout" { f = os.Stdout } else if result == "stderr" { f = os.Stderr } else { f, err := os.OpenFile(result, os.O_WRONLY|os.O_CREATE, 0755) if err != nil { println("Failed to open result file: ", err) os.Exit(1) } defer f.Close() } // Run tracer rt, err := runner.Start() println("used process_vm_readv: ", tracer.UseVMReadv) if err != nil { c, ok := err.(tracer.TraceCode) if !ok { c = tracer.TraceCodeFatal } // Handle fatal error from trace fmt.Fprintf(f, "%d %d %d %d\n", int(c), rt.UserTime, rt.UserMem, rt.ExitCode) if c == tracer.TraceCodeFatal { os.Exit(1) } } else { fmt.Fprintf(f, "%d %d %d %d\n", 0, rt.UserTime, rt.UserMem, rt.ExitCode) } }