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How to use resultArgToStr method of csource Package

Best Syzkaller code snippet using csource.resultArgToStr

csource.go

Source:csource.go

...290						arg.BitfieldOffset, arg.BitfieldLength)291				}292			case prog.ExecArgResult:293				fmt.Fprintf(w, "\tNONFAILING(*(uint%v_t*)0x%x = %v);\n",294					arg.Size*8, copyin.Addr, ctx.resultArgToStr(arg))295			case prog.ExecArgData:296				fmt.Fprintf(w, "\tNONFAILING(memcpy((void*)0x%x, \"%s\", %v));\n",297					copyin.Addr, toCString(arg.Data), len(arg.Data))298			case prog.ExecArgCsum:299				switch arg.Kind {300				case prog.ExecArgCsumInet:301					csumSeq++302					ctx.generateCsumInet(w, copyin.Addr, arg, csumSeq)303				default:304					panic(fmt.Sprintf("unknown csum kind %v", arg.Kind))305				}306			default:307				panic(fmt.Sprintf("bad argument type: %+v", arg))308			}309		}310		// Call itself.311		if ctx.opts.Fault && ctx.opts.FaultCall == ci {312			fmt.Fprintf(w, "\twrite_file(\"/sys/kernel/debug/failslab/ignore-gfp-wait\", \"N\");\n")313			fmt.Fprintf(w, "\twrite_file(\"/sys/kernel/debug/fail_futex/ignore-private\", \"N\");\n")314			fmt.Fprintf(w, "\tinject_fault(%v);\n", ctx.opts.FaultNth)315		}316		callName := call.Meta.CallName317		resCopyout := call.Index != prog.ExecNoCopyout318		argCopyout := len(call.Copyout) != 0319		emitCall := ctx.opts.EnableTun || callName != "syz_emit_ethernet" &&320			callName != "syz_extract_tcp_res"321		// TODO: if we don't emit the call we must also not emit copyin, copyout and fault injection.322		// However, simply skipping whole iteration breaks tests due to unused static functions.323		if emitCall {324			native := !strings.HasPrefix(callName, "syz_")325			fmt.Fprintf(w, "\t")326			if resCopyout || argCopyout {327				fmt.Fprintf(w, "res = ")328			}329			if native {330				fmt.Fprintf(w, "syscall(%v%v", ctx.sysTarget.SyscallPrefix, callName)331			} else {332				fmt.Fprintf(w, "%v(", callName)333			}334			for ai, arg := range call.Args {335				if native || ai > 0 {336					fmt.Fprintf(w, ", ")337				}338				switch arg := arg.(type) {339				case prog.ExecArgConst:340					fmt.Fprintf(w, "%v", ctx.constArgToStr(arg))341				case prog.ExecArgResult:342					fmt.Fprintf(w, "%v", ctx.resultArgToStr(arg))343				default:344					panic(fmt.Sprintf("unknown arg type: %+v", arg))345				}346			}347			fmt.Fprintf(w, ");\n")348		}349		// Copyout.350		if resCopyout || argCopyout {351			fmt.Fprintf(w, "\tif (res != -1)")352			copyoutMultiple := len(call.Copyout) > 1 || resCopyout && len(call.Copyout) > 0353			if copyoutMultiple {354				fmt.Fprintf(w, " {")355			}356			fmt.Fprintf(w, "\n")357			if resCopyout {358				fmt.Fprintf(w, "\t\tr[%v] = res;\n", call.Index)359			}360			for _, copyout := range call.Copyout {361				fmt.Fprintf(w, "\t\tNONFAILING(r[%v] = *(uint%v_t*)0x%x);\n",362					copyout.Index, copyout.Size*8, copyout.Addr)363			}364			if copyoutMultiple {365				fmt.Fprintf(w, "\t}\n")366			}367		}368		calls = append(calls, w.String())369	}370	return calls, p.Vars371}372func (ctx *context) generateCsumInet(w *bytes.Buffer, addr uint64, arg prog.ExecArgCsum, csumSeq int) {373	fmt.Fprintf(w, "\tstruct csum_inet csum_%d;\n", csumSeq)374	fmt.Fprintf(w, "\tcsum_inet_init(&csum_%d);\n", csumSeq)375	for i, chunk := range arg.Chunks {376		switch chunk.Kind {377		case prog.ExecArgCsumChunkData:378			fmt.Fprintf(w, "\tNONFAILING(csum_inet_update(&csum_%d, (const uint8_t*)0x%x, %d));\n",379				csumSeq, chunk.Value, chunk.Size)380		case prog.ExecArgCsumChunkConst:381			fmt.Fprintf(w, "\tuint%d_t csum_%d_chunk_%d = 0x%x;\n",382				chunk.Size*8, csumSeq, i, chunk.Value)383			fmt.Fprintf(w, "\tcsum_inet_update(&csum_%d, (const uint8_t*)&csum_%d_chunk_%d, %d);\n",384				csumSeq, csumSeq, i, chunk.Size)385		default:386			panic(fmt.Sprintf("unknown checksum chunk kind %v", chunk.Kind))387		}388	}389	fmt.Fprintf(w, "\tNONFAILING(*(uint16_t*)0x%x = csum_inet_digest(&csum_%d));\n",390		addr, csumSeq)391}392func (ctx *context) constArgToStr(arg prog.ExecArgConst) 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 ctx.opts.Procs > 1 && arg.PidStride != 0 {402		val += fmt.Sprintf(" + procid*%v", arg.PidStride)403	}404	if arg.BigEndian {405		val = fmt.Sprintf("htobe%v(%v)", arg.Size*8, val)406	}407	return val408}409func (ctx *context) resultArgToStr(arg prog.ExecArgResult) string {410	res := fmt.Sprintf("r[%v]", arg.Index)411	if arg.DivOp != 0 {412		res = fmt.Sprintf("%v/%v", res, arg.DivOp)413	}414	if arg.AddOp != 0 {415		res = fmt.Sprintf("%v+%v", res, arg.AddOp)416	}417	return res418}419func toCString(data []byte) []byte {420	if len(data) == 0 {421		return nil422	}423	readable := true...

resultArgToStr

Using AI Code Generation

1import (2func main() {3	m := ir.NewModule()4	fn := m.NewFunc("main", types.Void)5	entry := fn.NewBlock("entry")6	cs := constant.NewCharArray("hello world")7	str := m.NewGlobalDef("str", cs)8	entry.NewCall(9		m.NewFunc("printf", types.I32, types.I8Ptr),10		[]value.Value{11			irutil.NewElementPtr(str, constant.NewInt(types.I64, 0), constant.NewInt(types.I64, 0)),12		},

resultArgToStr

Using AI Code Generation

1import "fmt"2func main() {3    s = resultArgToStr("Hello", "World")4    fmt.Println(s)5}6import "fmt"7func main() {8    s = resultArgToStr("Hello", "World")9    fmt.Println(s)10}11import "fmt"12func main() {13    s = resultArgToStr("Hello", "World")14    fmt.Println(s)15}16import "fmt"17func main() {18    s = resultArgToStr("Hello", "World")19    fmt.Println(s)20}21import "fmt"22func main() {23    s = resultArgToStr("Hello", "World")24    fmt.Println(s)25}26import "fmt"27func main() {28    s = resultArgToStr("Hello", "World")29    fmt.Println(s)30}31import "fmt"32func main() {33    s = resultArgToStr("Hello", "World")34    fmt.Println(s)35}36import "fmt"37func main() {38    s = resultArgToStr("Hello", "World")39    fmt.Println(s)40}41import "fmt"42func main() {43    s = resultArgToStr("Hello", "World")44    fmt.Println(s)45}46import "fmt"47func main() {

resultArgToStr

Using AI Code Generation

1import (2func main() {3    csource.GenerateFromActorSystem(actor.NewActorSystem())4    fmt.Println(csource.ResultArgToStr())5}6import (7func main() {8    csource.GenerateFromActorSystem(actor.NewActorSystem())9    fmt.Println(csource.ResultArgToStr())10}11import (12func main() {13    csource.GenerateFromActorSystem(actor.NewActorSystem())14    fmt.Println(csource.ResultArgToStr())15}16import (17func main() {18    csource.GenerateFromActorSystem(actor.NewActorSystem())19    fmt.Println(csource.ResultArgToStr())20}21import (22func main() {23    csource.GenerateFromActorSystem(actor.NewActorSystem())24    fmt.Println(csource.ResultArgToStr())25}26import (27func main()

resultArgToStr

Using AI Code Generation

1import (2func main() {3	_, file, _, _ := runtime.Caller(0)4	fmt.Println("file:", file)5	fmt.Println("resultArgToStr:", resultArgToStr(file))6}7func resultArgToStr(arg *C.char) *C.char {8	return C.CString("resultArgToStr:" + C.GoString(arg))9}10import (11func main() {12	fmt.Println("resultArgToStr:", resultArgToStr("hello world"))13}14func resultArgToStr(arg string) string {15}16import (17func main() {18	fmt.Println("resultArgToStr:", resultArgToStr("hello world"))19}20func resultArgToStr(arg *C.char) *C.char {21	return C.CString("resultArgToStr:" + C.GoString(arg))22}23import (24func main() {25	fmt.Println("resultArgToStr:", resultArgToStr("hello world"))26}27func resultArgToStr(arg string) string {28}29import (30func main() {31	fmt.Println("resultArgToStr:", resultArgToStr("hello world"))32}33func resultArgToStr(arg *C.char) *C.char {34	return C.CString("resultArgToStr:" + C.GoString(arg))35}

resultArgToStr

Using AI Code Generation

1import (2func main() {3	csource := evalfilter.NewCSource()4	resultArgToStr := csource.ResultArgToStr()5	fmt.Printf("%s6}

resultArgToStr

Using AI Code Generation

1import (2func main() {3	c := csource.NewCSource()4	c.ResultArgToStr("hello", "world")5}6import (7func main() {8	c := csource.NewCSource()9	c.ResultArgToStr("hello", "world", "how are you")10}11import (12func main() {13	c := csource.NewCSource()14	c.ResultArgToStr("hello", "world", "how are you", "I am fine")15}16import (17func main() {18	c := csource.NewCSource()19	c.ResultArgToStr("hello", "world", "how are you", "I am fine", "thank you")20}21import (22func main() {23	c := csource.NewCSource()24	c.ResultArgToStr("hello", "world", "how are you", "I am fine", "thank you", "bye")25}

resultArgToStr

Using AI Code Generation

1import (2type csource struct {3}4func (c *csource) resultArgToStr(arg interface{}) string {5	return fmt.Sprintf("%v", arg)6}7func main() {8	var resultArg interface{} = "This is a string"9	fmt.Println(reflect.TypeOf(resultArg))10	fmt.Println(c.resultArgToStr(resultArg))11}

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