How to use handleInvalid method of main Package

Best Syzkaller code snippet using main.handleInvalid

fuchsia_net_socket.go

Source:fuchsia_net_socket.go

1// Copyright 2018 The Fuchsia Authors. All rights reserved.2// Use of this source code is governed by a BSD-style license that can be3// found in the LICENSE file.4package main5import (6	"log"7	"syscall/zx"8	"syscall/zx/mxerror"9	"netstack/util"10	"fidl/fuchsia/net"11	"github.com/google/netstack/tcpip"12	"github.com/google/netstack/tcpip/network/ipv4"13	"github.com/google/netstack/tcpip/network/ipv6"14	"github.com/google/netstack/tcpip/transport/ping"15	"github.com/google/netstack/tcpip/transport/tcp"16	"github.com/google/netstack/tcpip/transport/udp"17)18type socketProviderImpl struct {19	ns *Netstack20}21func sockProto(typ net.SocketType, protocol net.SocketProtocol) (tcpip.TransportProtocolNumber, error) {22	switch typ {23	case net.SocketTypeStream:24		switch protocol {25		case net.SocketProtocolIp, net.SocketProtocolTcp:26			return tcp.ProtocolNumber, nil27		default:28			return 0, mxerror.Errorf(zx.ErrNotSupported, "unsupported SOCK_STREAM protocol: %d", protocol)29		}30	case net.SocketTypeDgram:31		switch protocol {32		case net.SocketProtocolIp, net.SocketProtocolUdp:33			return udp.ProtocolNumber, nil34		case net.SocketProtocolIcmp:35			return ping.ProtocolNumber4, nil36		default:37			return 0, mxerror.Errorf(zx.ErrNotSupported, "unsupported SOCK_DGRAM protocol: %d", protocol)38		}39	}40	return 0, mxerror.Errorf(zx.ErrNotSupported, "unsupported protocol: %d/%d", typ, protocol)41}42func (sp *socketProviderImpl) OpenSocket(d net.SocketDomain, t net.SocketType, p net.SocketProtocol) (zx.Socket, int32, error) {43	var netProto tcpip.NetworkProtocolNumber44	switch d {45	case net.SocketDomainInet:46		netProto = ipv4.ProtocolNumber47	case net.SocketDomainInet6:48		netProto = ipv6.ProtocolNumber49	default:50		return zx.Socket(zx.HandleInvalid), int32(zx.ErrNotSupported), nil51	}52	transProto, err := sockProto(t, p)53	if err != nil {54		return zx.Socket(zx.HandleInvalid), int32(errStatus(err)), nil55	}56	s, err := sp.ns.socketServer.opSocket(netProto, transProto)57	if err != nil {58		return zx.Socket(zx.HandleInvalid), int32(errStatus(err)), nil59	}60	return s, 0, nil61}62func netStringToString(ns *net.String) (string, net.AddrInfoStatus) {63	v := ns.Val[:]64	if len(v) < int(ns.Len) {65		return "", net.AddrInfoStatusBufferOverflow66	}67	return string(v[:ns.Len]), net.AddrInfoStatusOk68}69func (sp *socketProviderImpl) GetAddrInfo(n *net.String, s *net.String, hints *net.AddrInfoHints) (net.AddrInfoStatus, int32, *net.AddrInfo, *net.AddrInfo, *net.AddrInfo, *net.AddrInfo, error) {70	var node *string71	if n != nil {72		str, status := netStringToString(n)73		if status != net.AddrInfoStatusOk {74			return status, 0, nil, nil, nil, nil, nil75		}76		node = &str77	}78	var service *string79	if s != nil {80		str, status := netStringToString(s)81		if status != net.AddrInfoStatusOk {82			return status, 0, nil, nil, nil, nil, nil83		}84		service = &str85	}86	if hints == nil {87		hints = &net.AddrInfoHints{}88	}89	if hints.SockType == 0 {90		hints.SockType = SOCK_STREAM91	}92	if hints.Protocol == 0 {93		if hints.SockType == SOCK_STREAM {94			hints.Protocol = IPPROTO_TCP95		} else if hints.SockType == SOCK_DGRAM {96			hints.Protocol = IPPROTO_UDP97		}98	}99	transProto, err := sockProto(net.SocketType(hints.SockType), net.SocketProtocol(hints.Protocol))100	if err != nil {101		if debug {102			log.Printf("getaddrinfo: sockProto: %v", err)103		}104		return net.AddrInfoStatusSystemError, 0, nil, nil, nil, nil, nil105	}106	var port uint16107	if service != nil && *service != "" {108		port, err = serviceLookup(*service, transProto)109		if err != nil {110			if debug {111				log.Printf("getaddrinfo: serviceLookup: %v", err)112			}113			return net.AddrInfoStatusSystemError, 0, nil, nil, nil, nil, nil114		}115	}116	var addrs []tcpip.Address117	if node == nil {118		addrs = append(addrs, "\x00\x00\x00\x00")119	} else {120		addrs, err = sp.ns.dnsClient.LookupIP(*node)121		if err != nil {122			if *node == "localhost" {123				addrs = append(addrs, "\x7f\x00\x00\x01")124			} else {125				addrs = append(addrs, util.Parse(*node))126				if debug {127					log.Printf("getaddrinfo: addr=%v, err=%v", addrs, err)128				}129			}130		}131	}132	if len(addrs) == 0 || len(addrs[0]) == 0 {133		return net.AddrInfoStatusNoName, 0, nil, nil, nil, nil, nil134	}135	// Reply up to 4 addresses.136	num := int32(0)137	results := make([]*net.AddrInfo, 4)138	values := make([]net.AddrInfo, 4)139	for i := 0; i < len(addrs) && i < 4; i++ {140		ai := &values[i]141		*ai = net.AddrInfo{142			Flags:    0,143			SockType: hints.SockType,144			Protocol: hints.Protocol,145			Port:     port,146		}147		switch len(addrs[i]) {148		case 4:149			if hints.Family != AF_UNSPEC && hints.Family != AF_INET {150				continue151			}152			ai.Family = AF_INET153			ai.Addr.Len = 4154			copy(ai.Addr.Val[:4], addrs[i])155		case 16:156			if hints.Family != AF_UNSPEC && hints.Family != AF_INET6 {157				continue158			}159			ai.Family = AF_INET6160			ai.Addr.Len = 16161			copy(ai.Addr.Val[:16], addrs[i])162		default:163			if debug {164				log.Printf("getaddrinfo: len(addr)=%d, wrong size", len(addrs[i]))165			}166			// TODO: failing to resolve is a valid reply. fill out retval167			return net.AddrInfoStatusSystemError, 0, nil, nil, nil, nil, nil168		}169		results[num] = ai170		num++171	}172	return 0, num, results[0], results[1], results[2], results[3], nil173}...

pkgsvr.go

Source:pkgsvr.go

1// Copyright 2019 The Fuchsia Authors. All rights reserved.2// Use of this source code is governed by a BSD-style license that can be3// found in the LICENSE file.4package pkgsvr5import (6	"flag"7	"log"8	"syscall"9	"syscall/zx"10	"syscall/zx/fdio"11	"app/context"12	"fuchsia.googlesource.com/pmd/pkgfs"13)14// Main starts a package server program15func Main() {16	var (17		blob = flag.String("blob", "/blob", "Path at which to store blobs")18	)19	log.SetPrefix("pkgsvr: ")20	log.SetFlags(0) // no time required21	flag.Parse()22	sysPkg := flag.Arg(0)23	blobDir, err := syscall.OpenPath(*blob, syscall.O_RDWR|syscall.O_DIRECTORY, 0777)24	if err != nil {25		log.Fatalf("pkgfs: failed to open %q: %s", *blob, err)26	}27	fs, err := pkgfs.New(blobDir.(*fdio.Directory))28	if err != nil {29		log.Fatalf("pkgfs: initialization failed: %s", err)30	}31	h := context.GetStartupHandle(context.HandleInfo{Type: context.HandleUser0, Arg: 0})32	if h == zx.HandleInvalid {33		log.Fatalf("pkgfs: mount failed, no serving handle supplied in startup arguments")34	}35	if sysPkg != "" {36		var err error37		if err = fs.SetSystemRoot(sysPkg); err != nil {38			log.Printf("system: failed to set system root from blob %q: %s", sysPkg, err)39		}40		log.Printf("system: will be served from %s", sysPkg)41		// In the case of an error, we don't signal fshost for fuchsia_start, as system won't be readable.42		if err == nil {43			if err := zx.ProcHandle.Signal(zx.SignalNone, zx.SignalUser0); err != nil {44				log.Printf("system: failed to SignalUser0 on ProcHandle, fuchsia may not start: %s", err)45			}46		}47	} else {48		log.Printf("system: no system package blob supplied")49	}50	log.Printf("pkgfs serving blobfs %s", *blob)51	if err := fs.Serve(zx.Channel(h)); err != nil {52		log.Fatalf("pkgfs: serve failed on startup handle: %s", err)53	}54}...

handleInvalid

Using AI Code Generation

1import (2func main() {3    http.HandleFunc("/invalid", handleInvalid)4    log.Fatal(http.ListenAndServe(":8080", nil))5}6func handleInvalid(w http.ResponseWriter, r *http.Request) {7    w.WriteHeader(http.StatusNotFound)8    fmt.Fprintf(w, "404 not found")9}10net/http.(*conn).serve.func1(0xc0000a4000)11panic(0x4b6e40, 0x5b4c40)12main.handleInvalid(0x5c4b20, 0xc0000a4120, 0xc0000a2000)13net/http.HandlerFunc.ServeHTTP(0x52b1c0, 0x5c4b20, 0xc0000a4120, 0xc0000a2000)14net/http.(*ServeMux).ServeHTTP(0x5b4c00, 0x5c4b20, 0xc0000a4120, 0xc0000a2000)15net/http.serverHandler.ServeHTTP(0xc0000a0000, 0x5c4b20, 0xc0000a4120, 0xc0000a2000)16net/http.(*conn).serve(0xc0000a4000, 0x5c4e60, 0xc0000a4080)

handleInvalid

Using AI Code Generation

1import (2func main() {3	fmt.Scan(&a, &b)4	defer func() {5		if r := recover(); r != nil {6			fmt.Println("recovered from ", r)7		}8	}()9	handleInvalid(a, b)10}11func handleInvalid(a int, b int) {12	if a == 0 {13		panic("a is 0")14	}15	fmt.Println(a / b)16}

handleInvalid

Using AI Code Generation

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

handleInvalid

Using AI Code Generation

1import (2func main() {3	fmt.Println("Enter a number: ")4	fmt.Scanf("%d", &a)5	handleInvalid(a)6}7import (8func main() {9	fmt.Println("Enter a number: ")10	fmt.Scanf("%d", &a)11	handleInvalid(a)12}13import (14func handleInvalid(a int) {15	if a > 100 {16		fmt.Println("Number is greater than 100")17	} else {18		fmt.Println("Number is less than 100")19	}20}21import (22func main() {23	fmt.Println("Enter a number: ")24	fmt.Scanf("%d",

handleInvalid

Using AI Code Generation

1import (2type Invalid struct {3}4func (i *Invalid) handleInvalid() {5}6type Main struct {7}8func (m *Main) handleInvalid() {9}10func main() {11}

handleInvalid

Using AI Code Generation

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

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