How to use Format method of prog Package

Best Syzkaller code snippet using prog.Format

csource.go

Source:csource.go

...252			fmt.Fprintf(w, ", ")253		}254		switch arg := arg.(type) {255		case prog.ExecArgConst:256			if arg.Format != prog.FormatNative && arg.Format != prog.FormatBigEndian {257				panic("sring format in syscall argument")258			}259			fmt.Fprintf(w, "%v", ctx.constArgToStr(arg, true, native))260		case prog.ExecArgResult:261			if arg.Format != prog.FormatNative && arg.Format != prog.FormatBigEndian {262				panic("sring format in syscall argument")263			}264			val := ctx.resultArgToStr(arg)265			if native && ctx.target.PtrSize == 4 {266				// syscall accepts args as ellipsis, resources are uint64267				// and take 2 slots without the cast, which would be wrong.268				val = "(intptr_t)" + val269			}270			fmt.Fprintf(w, "%v", val)271		default:272			panic(fmt.Sprintf("unknown arg type: %+v", arg))273		}274	}275	for i := 0; i < call.Meta.MissingArgs; i++ {276		if native || len(call.Args) != 0 {277			fmt.Fprintf(w, ", ")278		}279		fmt.Fprintf(w, "0")280	}281}282func (ctx *context) generateCsumInet(w *bytes.Buffer, addr uint64, arg prog.ExecArgCsum, csumSeq int) {283	fmt.Fprintf(w, "\tstruct csum_inet csum_%d;\n", csumSeq)284	fmt.Fprintf(w, "\tcsum_inet_init(&csum_%d);\n", csumSeq)285	for i, chunk := range arg.Chunks {286		switch chunk.Kind {287		case prog.ExecArgCsumChunkData:288			fmt.Fprintf(w, "\tNONFAILING(csum_inet_update(&csum_%d, (const uint8*)0x%x, %d));\n",289				csumSeq, chunk.Value, chunk.Size)290		case prog.ExecArgCsumChunkConst:291			fmt.Fprintf(w, "\tuint%d csum_%d_chunk_%d = 0x%x;\n",292				chunk.Size*8, csumSeq, i, chunk.Value)293			fmt.Fprintf(w, "\tcsum_inet_update(&csum_%d, (const uint8*)&csum_%d_chunk_%d, %d);\n",294				csumSeq, csumSeq, i, chunk.Size)295		default:296			panic(fmt.Sprintf("unknown checksum chunk kind %v", chunk.Kind))297		}298	}299	fmt.Fprintf(w, "\tNONFAILING(*(uint16*)0x%x = csum_inet_digest(&csum_%d));\n",300		addr, csumSeq)301}302func (ctx *context) copyin(w *bytes.Buffer, csumSeq *int, copyin prog.ExecCopyin) {303	switch arg := copyin.Arg.(type) {304	case prog.ExecArgConst:305		if arg.BitfieldOffset == 0 && arg.BitfieldLength == 0 {306			ctx.copyinVal(w, copyin.Addr, arg.Size, ctx.constArgToStr(arg, true, false), arg.Format)307		} else {308			if arg.Format != prog.FormatNative && arg.Format != prog.FormatBigEndian {309				panic("bitfield+string format")310			}311			htobe := ""312			if ctx.target.LittleEndian && arg.Format == prog.FormatBigEndian {313				htobe = fmt.Sprintf("htobe%v", arg.Size*8)314			}315			bitfieldOffset := arg.BitfieldOffset316			if !ctx.target.LittleEndian {317				bitfieldOffset = arg.Size*8 - arg.BitfieldOffset - arg.BitfieldLength318			}319			fmt.Fprintf(w, "\tNONFAILING(STORE_BY_BITMASK(uint%v, %v, 0x%x, %v, %v, %v));\n",320				arg.Size*8, htobe, copyin.Addr, ctx.constArgToStr(arg, false, false),321				bitfieldOffset, arg.BitfieldLength)322		}323	case prog.ExecArgResult:324		ctx.copyinVal(w, copyin.Addr, arg.Size, ctx.resultArgToStr(arg), arg.Format)325	case prog.ExecArgData:326		fmt.Fprintf(w, "\tNONFAILING(memcpy((void*)0x%x, \"%s\", %v));\n",327			copyin.Addr, toCString(arg.Data, arg.Readable), len(arg.Data))328	case prog.ExecArgCsum:329		switch arg.Kind {330		case prog.ExecArgCsumInet:331			*csumSeq++332			ctx.generateCsumInet(w, copyin.Addr, arg, *csumSeq)333		default:334			panic(fmt.Sprintf("unknown csum kind %v", arg.Kind))335		}336	default:337		panic(fmt.Sprintf("bad argument type: %+v", arg))338	}339}340func (ctx *context) copyinVal(w *bytes.Buffer, addr, size uint64, val string, bf prog.BinaryFormat) {341	switch bf {342	case prog.FormatNative, prog.FormatBigEndian:343		fmt.Fprintf(w, "\tNONFAILING(*(uint%v*)0x%x = %v);\n", size*8, addr, val)344	case prog.FormatStrDec:345		if size != 20 {346			panic("bad strdec size")347		}348		fmt.Fprintf(w, "\tNONFAILING(sprintf((char*)0x%x, \"%%020llu\", (long long)%v));\n", addr, val)349	case prog.FormatStrHex:350		if size != 18 {351			panic("bad strdec size")352		}353		fmt.Fprintf(w, "\tNONFAILING(sprintf((char*)0x%x, \"0x%%016llx\", (long long)%v));\n", addr, val)354	case prog.FormatStrOct:355		if size != 23 {356			panic("bad strdec size")357		}358		fmt.Fprintf(w, "\tNONFAILING(sprintf((char*)0x%x, \"%%023llo\", (long long)%v));\n", addr, val)359	default:360		panic("unknown binary format")361	}362}363func (ctx *context) copyout(w *bytes.Buffer, call prog.ExecCall, resCopyout bool) {364	if ctx.sysTarget.OS == "fuchsia" {365		// On fuchsia we have real system calls that return ZX_OK on success,366		// and libc calls that are casted to function returning intptr_t,367		// as the result int -1 is returned as 0x00000000ffffffff rather than full -1.368		if strings.HasPrefix(call.Meta.CallName, "zx_") {369			fmt.Fprintf(w, "\tif (res == ZX_OK)")370		} else {371			fmt.Fprintf(w, "\tif ((int)res != -1)")372		}373	} else {374		fmt.Fprintf(w, "\tif (res != -1)")375	}376	copyoutMultiple := len(call.Copyout) > 1 || resCopyout && len(call.Copyout) > 0377	if copyoutMultiple {378		fmt.Fprintf(w, " {")379	}380	fmt.Fprintf(w, "\n")381	if resCopyout {382		fmt.Fprintf(w, "\t\tr[%v] = res;\n", call.Index)383	}384	for _, copyout := range call.Copyout {385		fmt.Fprintf(w, "\t\tNONFAILING(r[%v] = *(uint%v*)0x%x);\n",386			copyout.Index, copyout.Size*8, copyout.Addr)387	}388	if copyoutMultiple {389		fmt.Fprintf(w, "\t}\n")390	}391}392func (ctx *context) constArgToStr(arg prog.ExecArgConst, handleBigEndian, native bool) string {393	mask := (uint64(1) << (arg.Size * 8)) - 1394	v := arg.Value & mask395	val := fmt.Sprintf("%v", v)396	if v == ^uint64(0)&mask {397		val = "-1"398	} else if v >= 10 {399		val = fmt.Sprintf("0x%x", v)400	}401	if native && arg.Size == 8 {402		// syscall() is variadic, so constant arguments must be explicitly403		// promoted. Otherwise the compiler is free to leave garbage in the404		// upper 32 bits of the argument value. In practice this can happen405		// on amd64 with arguments that are passed on the stack, i.e.,406		// arguments beyond the first six. For example, on freebsd/amd64,407		// syscall(SYS_mmap, ..., 0) causes clang to emit a 32-bit store of408		// 0 to the stack, but the kernel expects a 64-bit value.409		//410		// syzkaller's argument type representations do not always match411		// the OS ABI. For instance, "flags" is always 64 bits wide on 64-bit412		// platforms, but is a 32-bit value ("unsigned int" or so) in many413		// cases. Thus, we assume here that passing a 64-bit argument where414		// a 32-bit argument is expected won't break anything. On amd64415		// this should be fine: arguments are passed in 64-bit registers or416		// at 64 bit-aligned addresses on the stack.417		if ctx.target.PtrSize == 4 {418			val += "ull"419		} else {420			val += "ul"421		}422	}423	if ctx.opts.Procs > 1 && arg.PidStride != 0 {424		val += fmt.Sprintf(" + procid*%v", arg.PidStride)425	}426	if handleBigEndian && arg.Format == prog.FormatBigEndian {427		val = fmt.Sprintf("htobe%v(%v)", arg.Size*8, val)428	}429	return val430}431func (ctx *context) resultArgToStr(arg prog.ExecArgResult) string {432	res := fmt.Sprintf("r[%v]", arg.Index)433	if arg.DivOp != 0 {434		res = fmt.Sprintf("%v/%v", res, arg.DivOp)435	}436	if arg.AddOp != 0 {437		res = fmt.Sprintf("%v+%v", res, arg.AddOp)438	}439	if arg.Format == prog.FormatBigEndian {440		res = fmt.Sprintf("htobe%v(%v)", arg.Size*8, res)441	}442	return res443}444func (ctx *context) postProcess(result []byte) []byte {445	// Remove NONFAILING, debug, fail, etc calls.446	if !ctx.opts.HandleSegv {447		result = regexp.MustCompile(`\t*NONFAILING\((.*)\);\n`).ReplaceAll(result, []byte("$1;\n"))448	}449	result = bytes.Replace(result, []byte("NORETURN"), nil, -1)450	result = bytes.Replace(result, []byte("doexit("), []byte("exit("), -1)451	result = regexp.MustCompile(`PRINTF\(.*?\)`).ReplaceAll(result, nil)452	result = regexp.MustCompile(`\t*debug\((.*\n)*?.*\);\n`).ReplaceAll(result, nil)453	result = regexp.MustCompile(`\t*debug_dump_data\((.*\n)*?.*\);\n`).ReplaceAll(result, nil)...

streamformatter.go

Source:streamformatter.go

...7	"github.com/docker/docker/pkg/jsonmessage"8	"github.com/docker/docker/pkg/progress"9)10const streamNewline = "\r\n"11type jsonProgressFormatter struct{}12func appendNewline(source []byte) []byte {13	return append(source, []byte(streamNewline)...)14}15// FormatStatus formats the specified objects according to the specified format (and id).16func FormatStatus(id, format string, a ...interface{}) []byte {17	str := fmt.Sprintf(format, a...)18	b, err := json.Marshal(&jsonmessage.JSONMessage{ID: id, Status: str})19	if err != nil {20		return FormatError(err)21	}22	return appendNewline(b)23}24// FormatError formats the error as a JSON object25func FormatError(err error) []byte {26	jsonError, ok := err.(*jsonmessage.JSONError)27	if !ok {28		jsonError = &jsonmessage.JSONError{Message: err.Error()}29	}30	if b, err := json.Marshal(&jsonmessage.JSONMessage{Error: jsonError, ErrorMessage: err.Error()}); err == nil {31		return appendNewline(b)32	}33	return []byte(`{"error":"format error"}` + streamNewline)34}35func (sf *jsonProgressFormatter) formatStatus(id, format string, a ...interface{}) []byte {36	return FormatStatus(id, format, a...)37}38// formatProgress formats the progress information for a specified action.39func (sf *jsonProgressFormatter) formatProgress(id, action string, progress *jsonmessage.JSONProgress, aux interface{}) []byte {40	if progress == nil {41		progress = &jsonmessage.JSONProgress{}42	}43	var auxJSON *json.RawMessage44	if aux != nil {45		auxJSONBytes, err := json.Marshal(aux)46		if err != nil {47			return nil48		}49		auxJSON = new(json.RawMessage)50		*auxJSON = auxJSONBytes51	}52	b, err := json.Marshal(&jsonmessage.JSONMessage{53		Status:          action,54		ProgressMessage: progress.String(),55		Progress:        progress,56		ID:              id,57		Aux:             auxJSON,58	})59	if err != nil {60		return nil61	}62	return appendNewline(b)63}64type rawProgressFormatter struct{}65func (sf *rawProgressFormatter) formatStatus(id, format string, a ...interface{}) []byte {66	return []byte(fmt.Sprintf(format, a...) + streamNewline)67}68func (sf *rawProgressFormatter) formatProgress(id, action string, progress *jsonmessage.JSONProgress, aux interface{}) []byte {69	if progress == nil {70		progress = &jsonmessage.JSONProgress{}71	}72	endl := "\r"73	if progress.String() == "" {74		endl += "\n"75	}76	return []byte(action + " " + progress.String() + endl)77}78// NewProgressOutput returns a progress.Output object that can be passed to79// progress.NewProgressReader.80func NewProgressOutput(out io.Writer) progress.Output {81	return &progressOutput{sf: &rawProgressFormatter{}, out: out, newLines: true}82}83// NewJSONProgressOutput returns a progress.Output that that formats output84// using JSON objects85func NewJSONProgressOutput(out io.Writer, newLines bool) progress.Output {86	return &progressOutput{sf: &jsonProgressFormatter{}, out: out, newLines: newLines}87}88type formatProgress interface {89	formatStatus(id, format string, a ...interface{}) []byte90	formatProgress(id, action string, progress *jsonmessage.JSONProgress, aux interface{}) []byte91}92type progressOutput struct {93	sf       formatProgress94	out      io.Writer95	newLines bool96}97// WriteProgress formats progress information from a ProgressReader.98func (out *progressOutput) WriteProgress(prog progress.Progress) error {99	var formatted []byte100	if prog.Message != "" {101		formatted = out.sf.formatStatus(prog.ID, prog.Message)102	} else {103		jsonProgress := jsonmessage.JSONProgress{Current: prog.Current, Total: prog.Total, HideCounts: prog.HideCounts, Units: prog.Units}104		formatted = out.sf.formatProgress(prog.ID, prog.Action, &jsonProgress, prog.Aux)105	}106	_, err := out.out.Write(formatted)107	if err != nil {108		return err109	}110	if out.newLines && prog.LastUpdate {111		_, err = out.out.Write(out.sf.formatStatus("", ""))112		return err113	}114	return nil115}116// AuxFormatter is a streamFormatter that writes aux progress messages117type AuxFormatter struct {118	io.Writer119}120// Emit emits the given interface as an aux progress message121func (sf *AuxFormatter) Emit(id string, aux interface{}) error {122	auxJSONBytes, err := json.Marshal(aux)123	if err != nil {124		return err125	}126	auxJSON := new(json.RawMessage)127	*auxJSON = auxJSONBytes128	msgJSON, err := json.Marshal(&jsonmessage.JSONMessage{ID: id, Aux: auxJSON})129	if err != nil {130		return err131	}132	msgJSON = appendNewline(msgJSON)133	n, err := sf.Writer.Write(msgJSON)134	if n != len(msgJSON) {135		return io.ErrShortWrite...

template.go

Source:template.go

1package fish2// see https://fishshell.com/docs/current/commands.html#complete3var fishTemplate = `#!/usr/bin/env fish4{{ $prog := .Name -}}5set PROG '{{ $prog }}'6function __fish_{{ $prog }}_needs_command7  set -l cmd (commandline -opc)8  if [ (count $cmd) -eq 1 -a $cmd[1] = $PROG ]9    return 010  end11  return 112end13function __fish_{{ $prog }}_uses_command14  set cmd (commandline -opc)15  if [ (count $cmd) -gt 1 ]16    if [ $argv[1] = $cmd[2] ]17      return 018    end19  end20  return 121end22function __fish_{{ $prog }}_print_gpg_keys23  gpg2 --list-keys | grep uid | sed 's/.*<\(.*\)>/\1/'24end25function __fish_{{ $prog }}_print_entries26  {{ $prog }} ls --flat27end28function __fish_{{ $prog }}_print_dir29  for i in ({{ $prog }} ls --flat)30	  echo (dirname $i)31	end | sort -u32end33# erase any existing completions for {{ $prog }}34complete -c $PROG -e35complete -c $PROG -f -n '__fish_{{ $prog }}_needs_command' -a "(__fish_{{ $prog }}_print_entries)"36complete -c $PROG -f -s c -l clip -r -a "(__fish_{{ $prog }}_print_entries)"37{{- $gflags := .Flags -}}38{{ range .Commands }}39complete -c $PROG -f -n '__fish_{{ $prog }}_needs_command' -a {{ .Name }} -d 'Command: {{ .Usage }}'40{{- $cmd := .Name -}}41{{- if or (eq $cmd "copy") (eq $cmd "cp") (eq $cmd "move") (eq $cmd "mv") (eq $cmd "delete") (eq $cmd "remove") (eq $cmd "rm") (eq $cmd "show") (eq $cmd "set") (eq $cmd "edit") (eq $cmd "otp") }}42complete -c $PROG -f -n '__fish_{{ $prog }}_uses_command {{ $cmd }}' -a "(__fish_{{ $prog }}_print_entries)"{{ end -}}43{{- if or (eq $cmd "insert") (eq $cmd "generate") (eq $cmd "list") (eq $cmd "ls") }}44complete -c $PROG -f -n '__fish_{{ $prog }}_uses_command {{ $cmd }}' -a "(__fish_{{ $prog }}_print_dir)"{{ end -}}45{{- range .Subcommands }}46{{- $subcmd := .Name }}47complete -c $PROG -f -n '__fish_{{ $prog }}_uses_command {{ $cmd }}' -a {{ $subcmd }} -d 'Subcommand: {{ .Usage }}'48{{- range .Flags }}49complete -c $PROG -f -n '__fish_{{ $prog }}_uses_command {{ $cmd }} {{ $subcmd }} {{ if ne (. | formatShortFlag) "" }}-s {{ . | formatShortFlag }} {{ end }}-l {{ . | formatLongFlag }} -d "{{ . | formatFlagUsage }}"'50{{- end }}51{{- range $gflags }}52complete -c $PROG -f -n '__fish_{{ $prog }}_uses_command {{ $cmd }} {{ $subcmd }} {{ if ne (. | formatShortFlag) "" }}-s {{ . | formatShortFlag }} {{ end }}-l {{ . | formatLongFlag }} -d "{{ . | formatFlagUsage }}"'53{{- end }}54{{- end }}55{{- end }}`...

Format

Using AI Code Generation

1import "fmt"2func main() {3 fmt.Printf("Hello, %s4}5import "fmt"6func main() {7 fmt.Printf("Hello, %s8}

Format

Using AI Code Generation

1import "fmt"2func main() {3 fmt.Println(prog.Format("hello"))4}5func Format(s string) string {6}

Format

Using AI Code Generation

1import (2func main() {3	fmt.Println(stringutil.Reverse("!oG ,olleH"))4	fmt.Println(stringutil.MyName)5}6import (7func main() {8	fmt.Println(icomefromalaska.Reverse("!oG ,olleH"))9	fmt.Println(icomefromalaska.MyName)10}11import (12func main() {13	fmt.Println(icomefromalaska.Reverse("!oG ,olleH"))14	fmt.Println(icomefromalaska.MyName)15}16import (17func main() {18	fmt.Println(icomefromalaska.Reverse("!oG ,olleH"))19	fmt.Println(icomefromalaska.MyName)20}21import (22func main() {23	fmt.Println(icomefromalaska.Reverse("!oG ,olleH"))24	fmt.Println(icomefromalaska.MyName)25}26import (27func main() {28	fmt.Println(icomefromalaska.Reverse("!oG ,olleH"))29	fmt.Println(icomefromalaska.MyName)30}31import (32func main() {33	fmt.Println(icomefromalaska.Reverse("!oG ,olleH"))34	fmt.Println(icomefromalaska.MyName)35}

Format

Using AI Code Generation

1import "fmt"2func main() {3    fmt.Println("Hello, playground")4    fmt.Printf("Hello, %s5    fmt.Printf("Hello, %s6    fmt.Printf("Hello, %s7    fmt.Printf("Hello, %s8    fmt.Printf("Hello, %s9}10import "fmt"11func main() {12    fmt.Println("Hello, playground")13    fmt.Printf("Hello, %s14    fmt.Printf("Hello, %s15    fmt.Printf("Hello, %s16    fmt.Printf("Hello, %s17    fmt.Printf("Hello, %s18}19import "fmt"20func main() {21    fmt.Println("Hello, playground")22    fmt.Printf("Hello, %s23    fmt.Printf("Hello, %s24    fmt.Printf("Hello, %s25    fmt.Printf("Hello, %s26    fmt.Printf("Hello, %s27}28import "fmt"29func main() {30    fmt.Println("Hello, playground")31    fmt.Printf("Hello, %s32    fmt.Printf("Hello, %s33    fmt.Printf("Hello, %s34    fmt.Printf("Hello, %s35    fmt.Printf("Hello, %s36}37import "fmt"38func main() {39    fmt.Println("Hello, playground")40    fmt.Printf("Hello, %s41    fmt.Printf("Hello, %s42    fmt.Printf("Hello, %s43    fmt.Printf("Hello, %s44    fmt.Printf("Hello, %s45}

Format

Using AI Code Generation

1import "fmt"2func main() {3    fmt.Println("Hello, playground")4    fmt.Printf("%s", prog.Format())5}6import "fmt"7func Format() string {8    return fmt.Sprintf("Hello, playground")9}

Format

Using AI Code Generation

1import "fmt"2func main() {3    fmt.Printf("Hello, %s4}5import "fmt"6func main() {7    fmt.Println("Hello, world")8}9import "fmt"10func main() {11    fmt.Printf("Hello, %s12}13import "fmt"14func main() {15    fmt.Println("Hello, world")16}17import "fmt"18func main() {19    fmt.Printf("Hello, %s20}21import "fmt"22func main() {23    fmt.Println("Hello, world")24}25import "fmt

Format

Using AI Code Generation

1import "fmt"2func main() {3    fmt.Println("Hello World")4    fmt.Printf("Hello World")5}6GoLang Println() and Printf() with Formatting7import "fmt"8func main() {9    fmt.Printf("Hello %s10    fmt.Printf("Hello %s", "World")11}12As you can see in the above output, the first line is printed with a new line character (13GoLang Println() and Printf() with Formatting and Arguments14import "fmt"15func main() {16    fmt.Printf("Hello %s17    fmt.Printf("Hello %s", "World")18    fmt.Printf("Hello %s %s", "World", "!")19}20GoLang Println() and Printf() with Formatting and Multiple Arguments21import "fmt"22func main() {23    fmt.Printf("Hello %s %s", "World", "!")24}25GoLang Println() and Printf() with Formatting and Multiple Arguments26The Println()

Format

Using AI Code Generation

1import (2func main() {3	prog := prog{1, 2}4	fmt.Println(prog.Format())5}6import (7func main() {8	fmt.Println("Hello, playground")9}10import (11func main() {12	prog := prog{1, 2}13	fmt.Println(prog.Format())14}

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