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How to use toCString method of csource Package

Best Syzkaller code snippet using csource.toCString

csource.go

Source:csource.go

...286				fmt.Fprintf(w, "\tNONFAILING(*(uint%v_t*)0x%x = %v);\n",287					arg.Size*8, copyin.Addr, ctx.resultArgToStr(arg))288			case prog.ExecArgData:289				fmt.Fprintf(w, "\tNONFAILING(memcpy((void*)0x%x, \"%s\", %v));\n",290					copyin.Addr, toCString(arg.Data), len(arg.Data))291			case prog.ExecArgCsum:292				switch arg.Kind {293				case prog.ExecArgCsumInet:294					csumSeq++295					fmt.Fprintf(w, "\tstruct csum_inet csum_%d;\n", csumSeq)296					fmt.Fprintf(w, "\tcsum_inet_init(&csum_%d);\n", csumSeq)297					for i, chunk := range arg.Chunks {298						switch chunk.Kind {299						case prog.ExecArgCsumChunkData:300							fmt.Fprintf(w, "\tNONFAILING(csum_inet_update(&csum_%d, (const uint8_t*)0x%x, %d));\n", csumSeq, chunk.Value, chunk.Size)301						case prog.ExecArgCsumChunkConst:302							fmt.Fprintf(w, "\tuint%d_t csum_%d_chunk_%d = 0x%x;\n", chunk.Size*8, csumSeq, i, chunk.Value)303							fmt.Fprintf(w, "\tcsum_inet_update(&csum_%d, (const uint8_t*)&csum_%d_chunk_%d, %d);\n", csumSeq, csumSeq, i, chunk.Size)304						default:305							panic(fmt.Sprintf("unknown checksum chunk kind %v", chunk.Kind))306						}307					}308					fmt.Fprintf(w, "\tNONFAILING(*(uint16_t*)0x%x = csum_inet_digest(&csum_%d));\n", copyin.Addr, csumSeq)309				default:310					panic(fmt.Sprintf("unknown csum kind %v", arg.Kind))311				}312			default:313				panic(fmt.Sprintf("bad argument type: %+v", arg))314			}315		}316		// Call itself.317		if ctx.opts.Fault && ctx.opts.FaultCall == ci {318			fmt.Fprintf(w, "\twrite_file(\"/sys/kernel/debug/failslab/ignore-gfp-wait\", \"N\");\n")319			fmt.Fprintf(w, "\twrite_file(\"/sys/kernel/debug/fail_futex/ignore-private\", \"N\");\n")320			fmt.Fprintf(w, "\tinject_fault(%v);\n", ctx.opts.FaultNth)321		}322		callName := call.Meta.CallName323		resCopyout := call.Index != prog.ExecNoCopyout324		argCopyout := len(call.Copyout) != 0325		emitCall := ctx.opts.EnableTun || callName != "syz_emit_ethernet" &&326			callName != "syz_extract_tcp_res"327		// TODO: if we don't emit the call we must also not emit copyin, copyout and fault injection.328		// However, simply skipping whole iteration breaks tests due to unused static functions.329		if emitCall {330			native := !strings.HasPrefix(callName, "syz_")331			fmt.Fprintf(w, "\t")332			if resCopyout || argCopyout {333				fmt.Fprintf(w, "res = ")334			}335			if native {336				fmt.Fprintf(w, "syscall(%v%v", ctx.sysTarget.SyscallPrefix, callName)337			} else {338				fmt.Fprintf(w, "%v(", callName)339			}340			for ai, arg := range call.Args {341				if native || ai > 0 {342					fmt.Fprintf(w, ", ")343				}344				switch arg := arg.(type) {345				case prog.ExecArgConst:346					fmt.Fprintf(w, "%v", ctx.constArgToStr(arg))347				case prog.ExecArgResult:348					fmt.Fprintf(w, "%v", ctx.resultArgToStr(arg))349				default:350					panic(fmt.Sprintf("unknown arg type: %+v", arg))351				}352			}353			fmt.Fprintf(w, ");\n")354		}355		// Copyout.356		if resCopyout || argCopyout {357			fmt.Fprintf(w, "\tif (res != -1)")358			copyoutMultiple := len(call.Copyout) > 1 || resCopyout && len(call.Copyout) > 0359			if copyoutMultiple {360				fmt.Fprintf(w, " {")361			}362			fmt.Fprintf(w, "\n")363			if resCopyout {364				fmt.Fprintf(w, "\t\tr[%v] = res;\n", call.Index)365			}366			for _, copyout := range call.Copyout {367				fmt.Fprintf(w, "\t\tNONFAILING(r[%v] = *(uint%v_t*)0x%x);\n",368					copyout.Index, copyout.Size*8, copyout.Addr)369			}370			if copyoutMultiple {371				fmt.Fprintf(w, "\t}\n")372			}373		}374		calls = append(calls, w.String())375	}376	return calls, p.Vars377}378func (ctx *context) constArgToStr(arg prog.ExecArgConst) string {379	mask := (uint64(1) << (arg.Size * 8)) - 1380	v := arg.Value & mask381	val := fmt.Sprintf("%v", v)382	if v == ^uint64(0)&mask {383		val = "-1"384	} else if v >= 10 {385		val = fmt.Sprintf("0x%x", v)386	}387	if ctx.opts.Procs > 1 && arg.PidStride != 0 {388		val += fmt.Sprintf(" + procid*%v", arg.PidStride)389	}390	if arg.BigEndian {391		val = fmt.Sprintf("htobe%v(%v)", arg.Size*8, val)392	}393	return val394}395func (ctx *context) resultArgToStr(arg prog.ExecArgResult) string {396	res := fmt.Sprintf("r[%v]", arg.Index)397	if arg.DivOp != 0 {398		res = fmt.Sprintf("%v/%v", res, arg.DivOp)399	}400	if arg.AddOp != 0 {401		res = fmt.Sprintf("%v+%v", res, arg.AddOp)402	}403	return res404}405func toCString(data []byte) []byte {406	if len(data) == 0 {407		return nil408	}409	readable := true410	for i, v := range data {411		// Allow 0 only as last byte.412		if !isReadable(v) && (i != len(data)-1 || v != 0) {413			readable = false414			break415		}416	}417	if !readable {418		buf := new(bytes.Buffer)419		for _, v := range data {...

toCString

Using AI Code Generation

1import (2func main() {3    ctx, err := cl.CreateContextFromType(nil, cl.DeviceTypeGPU)4    if err != nil {5        panic(err)6    }7    defer ctx.Release()8    queue, err := ctx.CreateCommandQueue(ctx.Devices[0], 0)9    if err != nil {10        panic(err)11    }12    defer queue.Release()13    src := blas.CSource()14    prog, err := ctx.CreateProgramWithSource([]string{src})15    if err != nil {16        panic(err)17    }18    err = prog.BuildProgram(nil, "-cl-mad-enable")19    if err != nil {20        panic(err)21    }22    kernel, err := prog.CreateKernel("cblas_dgemm")23    if err != nil {24        panic(err)25    }26    defer kernel.Release()

toCString

Using AI Code Generation

1import (2func main() {3	cs := csource.New()4	cblas := cblas.New()5	csCode := cs.ToCString(cblas)6	fmt.Println(csCode)7}8import (9func main() {10	cs := csource.New()11	cblas := cblas.New()12	csCode := cs.ToCHeader(cblas)13	fmt.Println(csCode)14}15import (16func main() {17	cs := csource.New()18	cblas := cblas.New()19	csCode := cs.ToGoSource(cblas)20	fmt.Println(csCode)21}22import (23func main() {24	cs := csource.New()25	cblas := cblas.New()26	csCode := cs.ToGoTestSource(cblas

toCString

Using AI Code Generation

1import (2func main() {3    err := ui.Main(func() {4        csource := ui.NewCSource()5        csource.Set("Hello World")6        cstring := csource.CString()7        fmt.Println(cstring)8    })9    if err != nil {10        panic(err)11    }12}13import (14func main() {15    err := ui.Main(func() {16        csource := ui.NewCSource()17        csource.Set("Hello World")18        cstring := csource.CString()19        fmt.Println(cstring)20    })21    if err != nil {22        panic(err)23    }24}25import (26func main() {27    err := ui.Main(func() {28        csource := ui.NewCSource()29        csource.Set("Hello World")30        cstring := csource.CString()31        fmt.Println(cstring)32    })33    if err != nil {34        panic(err)35    }36}37import (38func main() {39    err := ui.Main(func() {40        csource := ui.NewCSource()41        csource.Set("Hello World")42        cstring := csource.CString()43        fmt.Println(cstring)44    })45    if err != nil {46        panic(err)47    }48}49import (50func main() {51    err := ui.Main(func() {52        csource := ui.NewCSource()53        csource.Set("Hello World")54        cstring := csource.CString()55        fmt.Println(cstring)56    })57    if err != nil {58        panic(err)59    }60}

toCString

Using AI Code Generation

1import "fmt"2import "unsafe"3import "C"4func main() {5    fmt.Println("Hello, 世界")6    csource := C.CString("Hello, 世界")7    fmt.Println(csource)8    fmt.Println(unsafe.Pointer(csource))9    fmt.Println(C.GoString(csource))10    C.free(unsafe.Pointer(csource))11}12import "fmt"13import "unsafe"14import "C"15func main() {16    fmt.Println("Hello, 世界")17    csource := C.CString("Hello, 世界")18    fmt.Println(csource)19    fmt.Println(unsafe.Pointer(csource))20    fmt.Println(C.GoString(csource))21    C.free(unsafe.Pointer(csource))22}23import "fmt"24import "unsafe"25import "C"26func main() {27    fmt.Println("Hello, 世界")28    csource := C.CString("Hello, 世界")29    fmt.Println(csource)30    fmt.Println(unsafe.Pointer(csource))31    fmt.Println(C.GoString(csource))32    C.free(unsafe.Pointer(csource))33}34import "fmt"35import "unsafe"36import "C"37func main() {38    fmt.Println("Hello, 世界")39    csource := C.CString("Hello, 世界")40    fmt.Println(csource)41    fmt.Println(unsafe.Pointer(csource))42    fmt.Println(C.GoString(csource))43    C.free(unsafe.Pointer(csource))44}45import "fmt"46import "unsafe"47import "C"48func main() {49    fmt.Println("Hello, 世界")50    csource := C.CString("Hello, 世界")51    fmt.Println(csource)52    fmt.Println(unsafe.Pointer(csource))53    fmt.Println(C.GoString(csource))54    C.free(unsafe.Pointer(csource))55}56import "fmt"57import

toCString

Using AI Code Generation

1import (2func main() {3	c := csource.New()4	c.Include("stdio.h")5	b := cblas.New()6	a := blas.NewMatrix(2, 2, []float64{1, 2, 3, 4})7	b := blas.NewMatrix(2, 2, []float64{1, 2, 3, 4})8	c := blas.NewMatrix(2, 2, []float64{1, 2, 3, 4})9	d := blas.NewMatrix(2, 2, []float64{1, 2, 3, 4})10	e := blas.NewMatrix(2, 2, []float64{1, 2, 3, 4})11	f := blas.NewMatrix(2, 2, []float64{1, 2, 3, 4})12	g := blas.NewMatrix(2, 2, []float64{1, 2, 3, 4})13	h := blas.NewMatrix(2, 2, []float64{1, 2, 3, 4})14	i := blas.NewMatrix(2, 2, []float64{1, 2, 3, 4})15	j := blas.NewMatrix(2, 2, []float64{1, 2, 3, 4})16	k := blas.NewMatrix(2, 2, []float64{1, 2, 3, 4})17	l := blas.NewMatrix(2, 2, []float64{1, 2, 3, 4})

toCString

Using AI Code Generation

1import (2type csource struct {3}4func (c *csource) toCString() string {5	return fmt.Sprintf("%q", c.s)6}7func main() {8	c := csource{"Hello, World!"}9	fmt.Printf("%s10", c.toCString())11	fmt.Printf("%s12", unsafe.Pointer(&c))13}14import (15type csource struct {16}17func (c *csource) toCString() string {18	return fmt.Sprintf("%q", c.s)19}20func main() {21	c := csource{"Hello, World!"}22	fmt.Printf("%s23", c.toCString())24	fmt.Printf("%s25", unsafe.Pointer(&c))26	fmt.Printf("%s27", c.toCString())28}29import (30type csource struct {31}32func (c *csource) toCString() string {33	return fmt.Sprintf("%q", c.s)34}35func main() {36	c := csource{"Hello, World!"}37	fmt.Printf("%s38", c.toCString())39	fmt.Printf("%s40", unsafe.Pointer(&c))41	fmt.Printf("%s42", c.toCString())43	fmt.Printf("%s44", unsafe.Pointer(&c))45}46import (47type csource struct {48}49func (c *csource) toCString() string {50	return fmt.Sprintf("%q", c.s

toCString

Using AI Code Generation

1import (2func main() {3	csrc := csource.New()4	cstr := csrc.ToCString(str)5	fmt.Printf("%s6}7func (c *CSource) ToCStringArray(array []string) string8import (9func main() {10	array := []string{"Hello", "World"}11	csrc := csource.New()12	carray := csrc.ToCStringArray(array)13	fmt.Printf("%s14}15{"Hello", "World"}16func (c *CSource) ToCStringArray2D(array [][]string) string

toCString

Using AI Code Generation

1import "csource"2import "fmt"3func main() {4   cstr := csource.ToCString("Hello, World!")5   fmt.Println(csource.FromCString(cstr))6   csource.FreeCString(cstr)7}8import "C"9func ToCString(s string) *C.char {10   cs := C.CString(s)11   return C.toCString(cs)12}13func FromCString(cs *C.char) string {14   s := C.GoString(cs)15   return C.GoString(C.fromCString(cs))16}17func FreeCString(cs *C.char) {18   C.free(unsafe.Pointer(cs))19}

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