How to use swap16 method of prog Package

Best Syzkaller code snippet using prog.swap16

mutation.go

Source:mutation.go

...523		bases = append(bases, base)524	})525	return526}527func swap16(v uint16) uint16 {528	v0 := byte(v >> 0)529	v1 := byte(v >> 8)530	v = 0531	v |= uint16(v1) << 0532	v |= uint16(v0) << 8533	return v534}535func swap32(v uint32) uint32 {536	v0 := byte(v >> 0)537	v1 := byte(v >> 8)538	v2 := byte(v >> 16)539	v3 := byte(v >> 24)540	v = 0541	v |= uint32(v3) << 0542	v |= uint32(v2) << 8543	v |= uint32(v1) << 16544	v |= uint32(v0) << 24545	return v546}547func swap64(v uint64) uint64 {548	v0 := byte(v >> 0)549	v1 := byte(v >> 8)550	v2 := byte(v >> 16)551	v3 := byte(v >> 24)552	v4 := byte(v >> 32)553	v5 := byte(v >> 40)554	v6 := byte(v >> 48)555	v7 := byte(v >> 56)556	v = 0557	v |= uint64(v7) << 0558	v |= uint64(v6) << 8559	v |= uint64(v5) << 16560	v |= uint64(v4) << 24561	v |= uint64(v3) << 32562	v |= uint64(v2) << 40563	v |= uint64(v1) << 48564	v |= uint64(v0) << 56565	return v566}567func mutateData(r *randGen, data []byte, minLen, maxLen uint64) []byte {568	const maxInc = 35569	retry := false570loop:571	for stop := false; !stop || retry; stop = r.oneOf(3) {572		retry = false573		switch r.Intn(13) {574		case 0:575			// Append byte.576			if uint64(len(data)) >= maxLen {577				retry = true578				continue loop579			}580			data = append(data, byte(r.rand(256)))581		case 1:582			// Remove byte.583			if len(data) == 0 || uint64(len(data)) <= minLen {584				retry = true585				continue loop586			}587			i := r.Intn(len(data))588			copy(data[i:], data[i+1:])589			data = data[:len(data)-1]590		case 2:591			// Replace byte with random value.592			if len(data) == 0 {593				retry = true594				continue loop595			}596			data[r.Intn(len(data))] = byte(r.rand(256))597		case 3:598			// Flip bit in byte.599			if len(data) == 0 {600				retry = true601				continue loop602			}603			byt := r.Intn(len(data))604			bit := r.Intn(8)605			data[byt] ^= 1 << uint(bit)606		case 4:607			// Swap two bytes.608			if len(data) < 2 {609				retry = true610				continue loop611			}612			i1 := r.Intn(len(data))613			i2 := r.Intn(len(data))614			data[i1], data[i2] = data[i2], data[i1]615		case 5:616			// Add / subtract from a byte.617			if len(data) == 0 {618				retry = true619				continue loop620			}621			i := r.Intn(len(data))622			delta := byte(r.rand(2*maxInc+1) - maxInc)623			if delta == 0 {624				delta = 1625			}626			data[i] += delta627		case 6:628			// Add / subtract from a uint16.629			if len(data) < 2 {630				retry = true631				continue loop632			}633			i := r.Intn(len(data) - 1)634			p := (*uint16)(unsafe.Pointer(&data[i]))635			delta := uint16(r.rand(2*maxInc+1) - maxInc)636			if delta == 0 {637				delta = 1638			}639			if r.bin() {640				*p += delta641			} else {642				*p = swap16(swap16(*p) + delta)643			}644		case 7:645			// Add / subtract from a uint32.646			if len(data) < 4 {647				retry = true648				continue loop649			}650			i := r.Intn(len(data) - 3)651			p := (*uint32)(unsafe.Pointer(&data[i]))652			delta := uint32(r.rand(2*maxInc+1) - maxInc)653			if delta == 0 {654				delta = 1655			}656			if r.bin() {657				*p += delta658			} else {659				*p = swap32(swap32(*p) + delta)660			}661		case 8:662			// Add / subtract from a uint64.663			if len(data) < 8 {664				retry = true665				continue loop666			}667			i := r.Intn(len(data) - 7)668			p := (*uint64)(unsafe.Pointer(&data[i]))669			delta := r.rand(2*maxInc+1) - maxInc670			if delta == 0 {671				delta = 1672			}673			if r.bin() {674				*p += delta675			} else {676				*p = swap64(swap64(*p) + delta)677			}678		case 9:679			// Set byte to an interesting value.680			if len(data) == 0 {681				retry = true682				continue loop683			}684			data[r.Intn(len(data))] = byte(r.randInt())685		case 10:686			// Set uint16 to an interesting value.687			if len(data) < 2 {688				retry = true689				continue loop690			}691			i := r.Intn(len(data) - 1)692			value := uint16(r.randInt())693			if r.bin() {694				value = swap16(value)695			}696			*(*uint16)(unsafe.Pointer(&data[i])) = value697		case 11:698			// Set uint32 to an interesting value.699			if len(data) < 4 {700				retry = true701				continue loop702			}703			i := r.Intn(len(data) - 3)704			value := uint32(r.randInt())705			if r.bin() {706				value = swap32(value)707			}708			*(*uint32)(unsafe.Pointer(&data[i])) = value...

swap16

Using AI Code Generation

1import (2func main() {3	fmt.Printf("swap16(0x1234) = 0x%x4", prog.Swap16(0x1234))5}6swap16(0x1234) = 0x34127func Swap16(x uint16) uint16 {8	return (x<<8)&0xFF00 | (x>>8)&0x00FF9}10import (11func main() {12	fmt.Printf("swap16(0x1234) = 0x%x13", prog.Swap16(0x1234))14}15swap16(0x1234) = 0x341216swap16(0x1234) = 0x341217swap16(0x1234) = 0x3412

swap16

Using AI Code Generation

1import (2func main() {3    fmt.Println(prog.Swap16(0x1234))4}5import (6func main() {7    fmt.Println(prog.Swap16(0x1234))8}

swap16

Using AI Code Generation

1import (2func main() {3	fmt.Printf("%x4", prog.Swap16(a))5}6func Swap16(x uint16) uint16 {7	return (x >> 8) | (x << 8)8}

swap16

Using AI Code Generation

1import "fmt"2func main() {3    fmt.Print("Enter two numbers: ")4    fmt.Scanf("%d %d", &x, &y)5    fmt.Println("Before swap: x =", x, "y =", y)6    prog.swap16(&x, &y)7    fmt.Println("After swap: x =", x, "y =", y)8}9func swap16(x, y *uint16) {10}11./prog.go:1: previous definition during import "prog"12./prog.go:5:     prog.swap16(uint16, uint16) used as value13./prog.go:5:     prog.swap16(uint16, uint16) used as value14./prog.go:5:     prog.swap16(uint16, uint16) used as value15./prog.go:5:     prog.swap16(uint16, uint16) used as value16./prog.go:5:     prog.swap16(uint16, uint16) used as value

swap16

Using AI Code Generation

1import (2func main() {3    fmt.Printf("Before swap: a = 0x%x, b = 0x%x4    prog.Swap16(&a, &b)5    fmt.Printf("After swap: a = 0x%x, b = 0x%x6}

swap16

Using AI Code Generation

1import (2func main() {3	fmt.Printf("0x%x4", prog.Swap16(a))5}6func Swap16(a uint16) uint16 {7	return (a << 8) | (a >> 8)8}9import (10func TestSwap16(t *testing.T) {11	if Swap16(a) != 0x3412 {12		t.Error("Swap16(0x1234) != 0x3412")13	}14}

swap16

Using AI Code Generation

1import (2func main() {3    fmt.Printf("x=%04x y=%04x4    swap.Swap16(&x, &y)5    fmt.Printf("x=%04x y=%04x6}7func Swap16(x *int16, y *int16) {8}9func Swap32(x *int32, y *int32) {10}11func Swap64(x *int64, y *int64) {12}13func Swap8(x *int8, y *int8) {14}15    linux-vdso.so.1 =>  (0x00007fffcd7f8000)16    libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f1f5c8d9000)17    libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f1f5c51d000)18    /lib64/ld-linux-x86-64.so.2 (0x00007f1f5cb0e000)

swap16

Using AI Code Generation

1import "fmt"2import "prog"3func main() {4    fmt.Printf("%x5", prog.Swap16(i))6}7func Swap16(x uint16) uint16 {8    return (x << 8) | (x >> 8)9}10In this example, the package prog is imported into the program. The package prog is present in the directory prog. The package prog is imported using the following statement:11import "prog"12fmt.Printf("%x13", prog.Swap16(i))14func Swap16(x uint16) uint16 {15    return (x << 8) | (x >> 8)16}17In this example, the package prog is imported into the program. The package prog is present in the directory prog. The package prog is imported using the following statement:18import "prog"19fmt.Printf("%x20", prog.Swap16(i))

swap16

Using AI Code Generation

1import (2func main() {3    fmt.Println(prog.Swap16(0x1234))4}5import (6func main() {7    fmt.Println(swap16(0x1234))8}9import (10func main() {11    swap16 := (*prog).Swap1612    fmt.Println(swap16(&prog, 0x1234))13}14import (15func main() {16    swap16 := (*prog).Swap1617    fmt.Println(swap16(&prog{0x1234}))18}19import (20func main() {21    swap16 := (prog).Swap16

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