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Automation Advisor
Syzkaller
ipc
addFallbackSignal

How to use addFallbackSignal method of ipc Package

Best Syzkaller code snippet using ipc.addFallbackSignal

ipc.go

Source:ipc.go

...268		return269	}270	info, err0 = env.parseOutput(p)271	if info != nil && env.config.Flags&FlagSignal == 0 {272		addFallbackSignal(p, info)273	}274	if !env.config.UseForkServer {275		env.cmd.close()276		env.cmd = nil277	}278	return279}280func (env *Env) Exec(opts *ExecOpts, p *prog.Prog) (output []byte, info *ProgInfo, hanged bool, err0 error) {281	// Copy-in serialized program.282	progSize, err := p.SerializeForExec(env.in)283	if err != nil {284		err0 = fmt.Errorf("failed to serialize: %v", err)285		return286	}287	var progData []byte288	if !env.config.UseShmem {289		progData = env.in[:progSize]290	}291	// Zero out the first two words (ncmd and nsig), so that we don't have garbage there292	// if executor crashes before writing non-garbage there.293	for i := 0; i < 4; i++ {294		env.out[i] = 0295	} 296	atomic.AddUint64(&env.StatExecs, 1)297	if env.cmd == nil {298		if p.Target.OS != "test" && targets.Get(p.Target.OS, p.Target.Arch).HostFuzzer {299			// The executor is actually ssh,300			// starting them too frequently leads to timeouts.301			<-rateLimit.C302		}303		tmpDirPath := "./"304		atomic.AddUint64(&env.StatRestarts, 1)305		env.cmd, err0 = makeCommand(env.pid, env.bin, env.config, env.inFile, env.outFile, env.out, tmpDirPath)306		if err0 != nil {307			return308		}309	}310	// syscall.Setpriority(syscall.PRIO_PROCESS, env.cmd.cmd.Process.Pid, int(p.Prio))311	output, hanged, err0, _ = env.cmd.exec(opts, progData)312	if hanged { 313		atomic.AddUint64(&env.Hangs, 1)314	}315	if err0 != nil {316		env.cmd.close()317		env.cmd = nil318		return319	}320	info, err0 = env.parseOutput(p)321	if info != nil && env.config.Flags&FlagSignal == 0 {322		addFallbackSignal(p, info)323	}324	if !env.config.UseForkServer {325		env.cmd.close()326		env.cmd = nil327	}328	return329}330// addFallbackSignal computes simple fallback signal in cases we don't have real coverage signal.331// We use syscall number or-ed with returned errno value as signal.332// At least this gives us all combinations of syscall+errno.333func addFallbackSignal(p *prog.Prog, info *ProgInfo) {334	callInfos := make([]prog.CallInfo, len(info.Calls))335	for i, inf := range info.Calls {336		if inf.Flags&CallExecuted != 0 {337			callInfos[i].Flags |= prog.CallExecuted338		}339		if inf.Flags&CallFinished != 0 {340			callInfos[i].Flags |= prog.CallFinished341		}342		if inf.Flags&CallBlocked != 0 {343			callInfos[i].Flags |= prog.CallBlocked344		}345		callInfos[i].Errno = inf.Errno346	}347	p.FallbackSignal(callInfos)...

addFallbackSignal

Using AI Code Generation

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

addFallbackSignal

Using AI Code Generation

1import (2func main() {3    ipc := NewIPC()4    sig := make(chan os.Signal, 1)5    ipc.AddFallbackSignal(sig)6    signal.Notify(sig, syscall.SIGINT)7    fmt.Println("Received signal")8}9import (10func main() {11    ipc := NewIPC()12    sig := make(chan os.Signal, 1)13    ipc.AddFallbackSignal(sig, func() {14        fmt.Println("Received signal")15    })16    signal.Notify(sig, syscall.SIGINT)17}18import (19func main() {20    ipc := NewIPC()21    sig := make(chan os.Signal, 1)22    ipc.AddFallbackSignal(sig, func() {23        fmt.Println("Received signal")24    })25    signal.Notify(sig, syscall.SIGINT)

addFallbackSignal

Using AI Code Generation

1func main() {2    ipc := ipc.NewIpc()3    ipc.AddFallbackSignal(2, func() {4        fmt.Println("I am a signal handler")5    })6    ipc.Wait()7}8func main() {9    ipc := ipc.NewIpc()10    ipc.SendSignal(2, 2)11}

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