How to use copyin method of csource Package

Best Syzkaller code snippet using csource.copyin

csource.go

Source:csource.go Github

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...154 csumSeq := 0155 for ci, call := range p.Calls {156 w := new(bytes.Buffer)157 // Copyin.158 for _, copyin := range call.Copyin {159 ctx.copyin(w, &csumSeq, copyin)160 }161 if ctx.opts.Fault && ctx.opts.FaultCall == ci {162 fmt.Fprintf(w, "\twrite_file(\"/sys/kernel/debug/failslab/ignore-gfp-wait\", \"N\");\n")163 fmt.Fprintf(w, "\twrite_file(\"/sys/kernel/debug/fail_futex/ignore-private\", \"N\");\n")164 fmt.Fprintf(w, "\tinject_fault(%v);\n", ctx.opts.FaultNth)165 }166 // Call itself.167 callName := call.Meta.CallName168 resCopyout := call.Index != prog.ExecNoCopyout169 argCopyout := len(call.Copyout) != 0170 emitCall := ctx.opts.EnableTun ||171 callName != "syz_emit_ethernet" &&172 callName != "syz_extract_tcp_res"173 // TODO: if we don't emit the call we must also not emit copyin, copyout and fault injection.174 // However, simply skipping whole iteration breaks tests due to unused static functions.175 if emitCall {176 ctx.emitCall(w, call, ci, resCopyout || argCopyout, trace)177 } else if trace {178 fmt.Fprintf(w, "\t(void)res;\n")179 }180 // Copyout.181 if resCopyout || argCopyout {182 ctx.copyout(w, call, resCopyout)183 }184 calls = append(calls, w.String())185 }186 return calls, p.Vars187}188func (ctx *context) emitCall(w *bytes.Buffer, call prog.ExecCall, ci int, haveCopyout, trace bool) {189 callName := call.Meta.CallName190 native := ctx.sysTarget.SyscallNumbers && !strings.HasPrefix(callName, "syz_")191 fmt.Fprintf(w, "\t")192 if haveCopyout || trace {193 fmt.Fprintf(w, "res = ")194 }195 if native {196 fmt.Fprintf(w, "syscall(%v%v", ctx.sysTarget.SyscallPrefix, callName)197 } else if strings.HasPrefix(callName, "syz_") {198 fmt.Fprintf(w, "%v(", callName)199 } else {200 args := strings.Repeat(",long", len(call.Args))201 if args != "" {202 args = args[1:]203 }204 fmt.Fprintf(w, "((long(*)(%v))%v)(", args, callName)205 }206 for ai, arg := range call.Args {207 if native || ai > 0 {208 fmt.Fprintf(w, ", ")209 }210 switch arg := arg.(type) {211 case prog.ExecArgConst:212 if arg.Format != prog.FormatNative && arg.Format != prog.FormatBigEndian {213 panic("sring format in syscall argument")214 }215 fmt.Fprintf(w, "%v", ctx.constArgToStr(arg))216 case prog.ExecArgResult:217 if arg.Format != prog.FormatNative && arg.Format != prog.FormatBigEndian {218 panic("sring format in syscall argument")219 }220 val := ctx.resultArgToStr(arg)221 if native && ctx.target.PtrSize == 4 {222 // syscall accepts args as ellipsis, resources are uint64223 // and take 2 slots without the cast, which would be wrong.224 val = "(long)" + val225 }226 fmt.Fprintf(w, "%v", val)227 default:228 panic(fmt.Sprintf("unknown arg type: %+v", arg))229 }230 }231 fmt.Fprintf(w, ");\n")232 if trace {233 fmt.Fprintf(w, "\tprintf(\"### call=%v errno=%%u\\n\", res == -1 ? errno : 0);\n", ci)234 }235}236func (ctx *context) generateCsumInet(w *bytes.Buffer, addr uint64, arg prog.ExecArgCsum, csumSeq int) {237 fmt.Fprintf(w, "\tstruct csum_inet csum_%d;\n", csumSeq)238 fmt.Fprintf(w, "\tcsum_inet_init(&csum_%d);\n", csumSeq)239 for i, chunk := range arg.Chunks {240 switch chunk.Kind {241 case prog.ExecArgCsumChunkData:242 fmt.Fprintf(w, "\tNONFAILING(csum_inet_update(&csum_%d, (const uint8*)0x%x, %d));\n",243 csumSeq, chunk.Value, chunk.Size)244 case prog.ExecArgCsumChunkConst:245 fmt.Fprintf(w, "\tuint%d csum_%d_chunk_%d = 0x%x;\n",246 chunk.Size*8, csumSeq, i, chunk.Value)247 fmt.Fprintf(w, "\tcsum_inet_update(&csum_%d, (const uint8*)&csum_%d_chunk_%d, %d);\n",248 csumSeq, csumSeq, i, chunk.Size)249 default:250 panic(fmt.Sprintf("unknown checksum chunk kind %v", chunk.Kind))251 }252 }253 fmt.Fprintf(w, "\tNONFAILING(*(uint16*)0x%x = csum_inet_digest(&csum_%d));\n",254 addr, csumSeq)255}256func (ctx *context) copyin(w *bytes.Buffer, csumSeq *int, copyin prog.ExecCopyin) {257 switch arg := copyin.Arg.(type) {258 case prog.ExecArgConst:259 if arg.BitfieldOffset == 0 && arg.BitfieldLength == 0 {260 ctx.copyinVal(w, copyin.Addr, arg.Size, ctx.constArgToStr(arg), arg.Format)261 } else {262 if arg.Format != prog.FormatNative && arg.Format != prog.FormatBigEndian {263 panic("bitfield+string format")264 }265 fmt.Fprintf(w, "\tNONFAILING(STORE_BY_BITMASK(uint%v, 0x%x, %v, %v, %v));\n",266 arg.Size*8, copyin.Addr, ctx.constArgToStr(arg),267 arg.BitfieldOffset, arg.BitfieldLength)268 }269 case prog.ExecArgResult:270 ctx.copyinVal(w, copyin.Addr, arg.Size, ctx.resultArgToStr(arg), arg.Format)271 case prog.ExecArgData:272 fmt.Fprintf(w, "\tNONFAILING(memcpy((void*)0x%x, \"%s\", %v));\n",273 copyin.Addr, toCString(arg.Data), len(arg.Data))274 case prog.ExecArgCsum:275 switch arg.Kind {276 case prog.ExecArgCsumInet:277 *csumSeq++278 ctx.generateCsumInet(w, copyin.Addr, arg, *csumSeq)279 default:280 panic(fmt.Sprintf("unknown csum kind %v", arg.Kind))281 }282 default:283 panic(fmt.Sprintf("bad argument type: %+v", arg))284 }285}286func (ctx *context) copyinVal(w *bytes.Buffer, addr, size uint64, val string, bf prog.BinaryFormat) {287 switch bf {288 case prog.FormatNative, prog.FormatBigEndian:289 fmt.Fprintf(w, "\tNONFAILING(*(uint%v*)0x%x = %v);\n", size*8, addr, val)290 case prog.FormatStrDec:291 if size != 20 {292 panic("bad strdec size")293 }294 fmt.Fprintf(w, "\tNONFAILING(sprintf((char*)0x%x, \"%%020llu\", (long long)%v));\n", addr, val)295 case prog.FormatStrHex:296 if size != 18 {297 panic("bad strdec size")298 }299 fmt.Fprintf(w, "\tNONFAILING(sprintf((char*)0x%x, \"0x%%016llx\", (long long)%v));\n", addr, val)300 case prog.FormatStrOct:...

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copyin

Using AI Code Generation

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1CSource cs = new CSource();2cs.copyin();3cs.copyout();4CSource cs = new CSource();5cs.copyin();6cs.copyout();7CSource cs = new CSource();8cs.copyin();9cs.copyout();10CSource cs = new CSource();11cs.copyin();12cs.copyout();13CSource cs = new CSource();14cs.copyin();15cs.copyout();16CSource cs = new CSource();17cs.copyin();18cs.copyout();19CSource cs = new CSource();20cs.copyin();21cs.copyout();22CSource cs = new CSource();23cs.copyin();24cs.copyout();25CSource cs = new CSource();26cs.copyin();27cs.copyout();28CSource cs = new CSource();29cs.copyin();30cs.copyout();31CSource cs = new CSource();32cs.copyin();33cs.copyout();

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copyin

Using AI Code Generation

copy

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1import (2func main() {3 src, err := os.Open("1.txt")4 if err != nil {5 fmt.Println(err)6 os.Exit(1)7 }8 defer src.Close()9 dst, err := os.Create("2.txt")10 if err != nil {11 fmt.Println(err)12 os.Exit(1)13 }14 defer dst.Close()15 n, err := io.Copy(dst, src)16 if err != nil {17 fmt.Println(err)18 os.Exit(1)19 }20 fmt.Println(n)21}22import (23func main() {24 src, err := os.Open("1.txt")25 if err != nil {26 fmt.Println(err)27 os.Exit(1)28 }29 defer src.Close()30 dst, err := os.Create("2.txt")31 if err != nil {32 fmt.Println(err)33 os.Exit(1)34 }35 defer dst.Close()36 buf := make([]byte, 1024)37 for {38 n, err := src.Read(buf)39 if err != nil {40 if err != io.EOF {41 fmt.Println(err)42 }43 }44 if n > 0 {45 if _, err := dst.Write(buf[:n]); err != nil {46 fmt.Println(err)47 os.Exit(1)48 }49 }50 }51}52import (53func main() {54 src, err := os.Open("1.txt")55 if err != nil {56 fmt.Println(err)57 os.Exit(1)58 }59 defer src.Close()60 dst, err := os.Create("2.txt")61 if err != nil {62 fmt.Println(err)63 os.Exit(1)64 }65 defer dst.Close()66 buf := make([]byte, 1024)67 for {68 n, err := src.Read(buf)69 if err != nil {70 if err != io.EOF {71 fmt.Println(err)72 }73 }

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copyin

Using AI Code Generation

copy

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1import (2func main() {3 csource, err := csource.NewCSource("test.c")4 if err != nil {5 fmt.Println(err)6 os.Exit(1)7 }8 err = csource.CopyIn("test.c", csource_test.TestC)9 if err != nil {10 fmt.Println(err)11 os.Exit(1)12 }13 err = csource.CopyIn("Makefile", csource_test.Makefile)14 if err != nil {15 fmt.Println(err)16 os.Exit(1)17 }18 err = csource.CopyIn("test.h", csource_test.TestH)19 if err != nil {20 fmt.Println(err)21 os.Exit(1)22 }23 err = csource.CopyIn("test2.c", csource_test.Test2C)24 if err != nil {25 fmt.Println(err)26 os.Exit(1)27 }28 err = csource.CopyIn("test2.h", csource_test.Test2H)29 if err != nil {30 fmt.Println(err)31 os.Exit(1)32 }33 err = csource.CopyIn("test3.c", csource_test.Test3C)34 if err != nil {35 fmt.Println(err)36 os.Exit(1)37 }38 err = csource.CopyIn("test3.h", csource_test.Test3H)39 if err != nil {40 fmt.Println(err)41 os.Exit(1)42 }43 err = csource.CopyIn("test4.c", csource_test.Test4C)44 if err != nil {45 fmt.Println(err)46 os.Exit(1)47 }48 err = csource.CopyIn("test4.h", csource_test.Test4H)

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copyin

Using AI Code Generation

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1import (2func main() {3 csource.Copyin("test.c")4 fmt.Printf("csource: %s5}6import (7func main() {8 csource.Copyout("test.c")9 fmt.Printf("csource: %s10}11import (12func main() {13 csource.Copyinout("test.c")14 fmt.Printf("csource: %s15}16import (17func main() {18 csource.Copyin("test.c")19 fmt.Printf("csource: %s20}21import (22func main() {23 csource.Copyout("test.c")24 fmt.Printf("csource: %s25}26import (27func main() {28 csource.Copyinout("test.c")29 fmt.Printf("csource: %s30}31import (32func main() {

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copyin

Using AI Code Generation

copy

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1import java.io.*;2{3public static void main(String args[])throws IOException4{5FileInputStream in=null;6FileOutputStream out=null;7{8in=new FileInputStream("file1.txt");9out=new FileOutputStream("file2.txt");10int c;11while((c=in.read())!=-1)12{13out.write(c);14}15}16{17if(in!=null)18{19in.close();20}21if(out!=null)22{23out.close();24}25}26}27}

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copyin

Using AI Code Generation

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1public class CopyIn {2public static void main(String args[])throws IOException3{4csource obj=new csource();5obj.copyin("C:\\Users\\Rajesh\\Desktop\\1.txt","C:\\Users\\Rajesh\\Desktop\\2.txt");6}7}8public class CopyOut {9public static void main(String args[])throws IOException10{11csource obj=new csource();12obj.copyout("C:\\Users\\Rajesh\\Desktop\\1.txt","C:\\Users\\Rajesh\\Desktop\\2.txt");13}14}15public class CopyInOut {16public static void main(String args[])throws IOException17{18csource obj=new csource();19obj.copyinout("C:\\Users\\Rajesh\\Desktop\\1.txt","C:\\Users\\Rajesh\\Desktop\\2.txt");20}21}22public class CopyInOut {23public static void main(String args[])throws IOException24{25csource obj=new csource();26obj.copyinout("C:\\Users\\Rajesh\\Desktop\\1.txt","C:\\Users\\Rajesh\\Desktop

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copyin

Using AI Code Generation

copy

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1import "csource"2import "io"3import "os"4import "strings"5import "fmt"6import "errors"7func main() {

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copyin

Using AI Code Generation

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1void copyin(csource &x, int n)2{3int i;4for(i=0;i<n;i++)5{6cout<<"Enter the value of x["<<i<<"]:";7cin>>x[i];8}9}10void copyout(csource &x, int n)11{12int i;13for(i=0;i<n;i++)14{15cout<<"The value of x["<<i<<"]:"<<x[i]<<endl;16}17}18void copy(csource &x, csource &y, int n)19{20int i;21for(i=0;i<n;i++)22{23y[i]=x[i];24}25}26void add(csource &x, csource &y, csource &z, int n)27{28int i;29for(i=0;i<n;i++)30{31z[i]=x[i]+y[i];32}33}34void sub(csource &x, csource &y, csource &z, int n)35{36int i;37for(i=0;i<n;i++)38{39z[i]=x[i]-y[i];40}41}

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copyin

Using AI Code Generation

copy

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1import (2func main() {3 _, filename, _, _ := runtime.Caller(0)4 fset := token.NewFileSet()5 f, err := parser.ParseFile(fset, filename, nil, parser.ParseComments)6 if err != nil {7 fmt.Println(err)8 }9 newfile := strings.Replace(filename, filepath.Base(filename), "copy.go", 1)10 fw, err := os.Create(newfile)11 if err != nil {12 fmt.Println(err)13 }14 defer fw.Close()15 ast.Fprint(fw, fset, f, nil)16}

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