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vendor: Update everything

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GitHub-Pull-Request: https://github.com/syncthing/syncthing/pull/4620
This commit is contained in:
Jakob Borg
2017-12-29 11:38:00 +00:00
parent 1296a22069
commit c24bf7ea55
1070 changed files with 294926 additions and 488191 deletions
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11
vendor/golang.org/x/crypto/bcrypt/bcrypt.go generated vendored
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@@ -12,9 +12,10 @@ import (
"crypto/subtle"
"errors"
"fmt"
"golang.org/x/crypto/blowfish"
"io"
"strconv"
"golang.org/x/crypto/blowfish"
)
const (
@@ -205,7 +206,6 @@ func bcrypt(password []byte, cost int, salt []byte) ([]byte, error) {
}
func expensiveBlowfishSetup(key []byte, cost uint32, salt []byte) (*blowfish.Cipher, error) {
csalt, err := base64Decode(salt)
if err != nil {
return nil, err
@@ -213,7 +213,8 @@ func expensiveBlowfishSetup(key []byte, cost uint32, salt []byte) (*blowfish.Cip
// Bug compatibility with C bcrypt implementations. They use the trailing
// NULL in the key string during expansion.
ckey := append(key, 0)
// We copy the key to prevent changing the underlying array.
ckey := append(key[:len(key):len(key)], 0)
c, err := blowfish.NewSaltedCipher(ckey, csalt)
if err != nil {
@@ -240,11 +241,11 @@ func (p *hashed) Hash() []byte {
n = 3
}
arr[n] = '$'
n += 1
n++
copy(arr[n:], []byte(fmt.Sprintf("%02d", p.cost)))
n += 2
arr[n] = '$'
n += 1
n++
copy(arr[n:], p.salt)
n += encodedSaltSize
copy(arr[n:], p.hash)

2
vendor/golang.org/x/crypto/blowfish/cipher.go generated vendored
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@@ -6,7 +6,7 @@
package blowfish // import "golang.org/x/crypto/blowfish"
// The code is a port of Bruce Schneier's C implementation.
// See http://www.schneier.com/blowfish.html.
// See https://www.schneier.com/blowfish.html.
import "strconv"

2
vendor/golang.org/x/crypto/blowfish/const.go generated vendored
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@@ -4,7 +4,7 @@
// The startup permutation array and substitution boxes.
// They are the hexadecimal digits of PI; see:
// http://www.schneier.com/code/constants.txt.
// https://www.schneier.com/code/constants.txt.
package blowfish

2
vendor/golang.org/x/crypto/salsa20/salsa/salsa2020_amd64.s generated vendored
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@@ -5,7 +5,7 @@
// +build amd64,!appengine,!gccgo
// This code was translated into a form compatible with 6a from the public
// domain sources in SUPERCOP: http://bench.cr.yp.to/supercop.html
// domain sources in SUPERCOP: https://bench.cr.yp.to/supercop.html
// func salsa2020XORKeyStream(out, in *byte, n uint64, nonce, key *byte)
// This needs up to 64 bytes at 360(SP); hence the non-obvious frame size.

3
vendor/golang.org/x/crypto/salsa20/salsa/salsa20_amd64.go generated vendored
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@@ -13,11 +13,12 @@ package salsa
func salsa2020XORKeyStream(out, in *byte, n uint64, nonce, key *byte)
// XORKeyStream crypts bytes from in to out using the given key and counters.
// In and out may be the same slice but otherwise should not overlap. Counter
// In and out must overlap entirely or not at all. Counter
// contains the raw salsa20 counter bytes (both nonce and block counter).
func XORKeyStream(out, in []byte, counter *[16]byte, key *[32]byte) {
if len(in) == 0 {
return
}
_ = out[len(in)-1]
salsa2020XORKeyStream(&out[0], &in[0], uint64(len(in)), &counter[0], &key[0])
}

2
vendor/golang.org/x/crypto/salsa20/salsa/salsa20_ref.go generated vendored
View File

@@ -203,7 +203,7 @@ func core(out *[64]byte, in *[16]byte, k *[32]byte, c *[16]byte) {
}
// XORKeyStream crypts bytes from in to out using the given key and counters.
// In and out may be the same slice but otherwise should not overlap. Counter
// In and out must overlap entirely or not at all. Counter
// contains the raw salsa20 counter bytes (both nonce and block counter).
func XORKeyStream(out, in []byte, counter *[16]byte, key *[32]byte) {
var block [64]byte

10
vendor/golang.org/x/crypto/salsa20/salsa20.go generated vendored
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@@ -3,20 +3,20 @@
// license that can be found in the LICENSE file.
/*
Package salsa20 implements the Salsa20 stream cipher as specified in http://cr.yp.to/snuffle/spec.pdf.
Package salsa20 implements the Salsa20 stream cipher as specified in https://cr.yp.to/snuffle/spec.pdf.
Salsa20 differs from many other stream ciphers in that it is message orientated
rather than byte orientated. Keystream blocks are not preserved between calls,
therefore each side must encrypt/decrypt data with the same segmentation.
Another aspect of this difference is that part of the counter is exposed as
an nonce in each call. Encrypting two different messages with the same (key,
a nonce in each call. Encrypting two different messages with the same (key,
nonce) pair leads to trivial plaintext recovery. This is analogous to
encrypting two different messages with the same key with a traditional stream
cipher.
This package also implements XSalsa20: a version of Salsa20 with a 24-byte
nonce as specified in http://cr.yp.to/snuffle/xsalsa-20081128.pdf. Simply
nonce as specified in https://cr.yp.to/snuffle/xsalsa-20081128.pdf. Simply
passing a 24-byte slice as the nonce triggers XSalsa20.
*/
package salsa20 // import "golang.org/x/crypto/salsa20"
@@ -27,8 +27,8 @@ import (
"golang.org/x/crypto/salsa20/salsa"
)
// XORKeyStream crypts bytes from in to out using the given key and nonce. In
// and out may be the same slice but otherwise should not overlap. Nonce must
// XORKeyStream crypts bytes from in to out using the given key and nonce.
// In and out must overlap entirely or not at all. Nonce must
// be either 8 or 24 bytes long.
func XORKeyStream(out, in []byte, nonce []byte, key *[32]byte) {
if len(out) < len(in) {

1
vendor/golang.org/x/crypto/tea/cipher.go generated vendored
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@@ -5,7 +5,6 @@
// Package tea implements the TEA algorithm, as defined in Needham and
// Wheeler's 1994 technical report, “TEA, a Tiny Encryption Algorithm”. See
// http://www.cix.co.uk/~klockstone/tea.pdf for details.
package tea
import (

2
vendor/golang.org/x/crypto/twofish/twofish.go generated vendored
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@@ -5,7 +5,7 @@
// Package twofish implements Bruce Schneier's Twofish encryption algorithm.
package twofish // import "golang.org/x/crypto/twofish"
// Twofish is defined in http://www.schneier.com/paper-twofish-paper.pdf [TWOFISH]
// Twofish is defined in https://www.schneier.com/paper-twofish-paper.pdf [TWOFISH]
// This code is a port of the LibTom C implementation.
// See http://libtom.org/?page=features&newsitems=5&whatfile=crypt.

2
vendor/golang.org/x/crypto/xtea/cipher.go generated vendored
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@@ -69,7 +69,7 @@ func initCipher(c *Cipher, key []byte) {
// Precalculate the table
const delta = 0x9E3779B9
var sum uint32 = 0
var sum uint32
// Two rounds of XTEA applied per loop
for i := 0; i < numRounds; {

30
vendor/golang.org/x/net/bpf/constants.go generated vendored
View File

@@ -76,54 +76,54 @@ const (
// ExtLen returns the length of the packet.
ExtLen Extension = 1
// ExtProto returns the packet's L3 protocol type.
ExtProto = 0
ExtProto Extension = 0
// ExtType returns the packet's type (skb->pkt_type in the kernel)
//
// TODO: better documentation. How nice an API do we want to
// provide for these esoteric extensions?
ExtType = 4
ExtType Extension = 4
// ExtPayloadOffset returns the offset of the packet payload, or
// the first protocol header that the kernel does not know how to
// parse.
ExtPayloadOffset = 52
ExtPayloadOffset Extension = 52
// ExtInterfaceIndex returns the index of the interface on which
// the packet was received.
ExtInterfaceIndex = 8
ExtInterfaceIndex Extension = 8
// ExtNetlinkAttr returns the netlink attribute of type X at
// offset A.
ExtNetlinkAttr = 12
ExtNetlinkAttr Extension = 12
// ExtNetlinkAttrNested returns the nested netlink attribute of
// type X at offset A.
ExtNetlinkAttrNested = 16
ExtNetlinkAttrNested Extension = 16
// ExtMark returns the packet's mark value.
ExtMark = 20
ExtMark Extension = 20
// ExtQueue returns the packet's assigned hardware queue.
ExtQueue = 24
ExtQueue Extension = 24
// ExtLinkLayerType returns the packet's hardware address type
// (e.g. Ethernet, Infiniband).
ExtLinkLayerType = 28
ExtLinkLayerType Extension = 28
// ExtRXHash returns the packets receive hash.
//
// TODO: figure out what this rxhash actually is.
ExtRXHash = 32
ExtRXHash Extension = 32
// ExtCPUID returns the ID of the CPU processing the current
// packet.
ExtCPUID = 36
ExtCPUID Extension = 36
// ExtVLANTag returns the packet's VLAN tag.
ExtVLANTag = 44
ExtVLANTag Extension = 44
// ExtVLANTagPresent returns non-zero if the packet has a VLAN
// tag.
//
// TODO: I think this might be a lie: it reads bit 0x1000 of the
// VLAN header, which changed meaning in recent revisions of the
// spec - this extension may now return meaningless information.
ExtVLANTagPresent = 48
ExtVLANTagPresent Extension = 48
// ExtVLANProto returns 0x8100 if the frame has a VLAN header,
// 0x88a8 if the frame has a "Q-in-Q" double VLAN header, or some
// other value if no VLAN information is present.
ExtVLANProto = 60
ExtVLANProto Extension = 60
// ExtRand returns a uniformly random uint32.
ExtRand = 56
ExtRand Extension = 56
)
// The following gives names to various bit patterns used in opcode construction.

10
vendor/golang.org/x/net/bpf/setter.go generated vendored Normal file
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@@ -0,0 +1,10 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package bpf
// A Setter is a type which can attach a compiled BPF filter to itself.
type Setter interface {
SetBPF(filter []RawInstruction) error
}

104
vendor/golang.org/x/net/context/context.go generated vendored
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@@ -5,6 +5,8 @@
// Package context defines the Context type, which carries deadlines,
// cancelation signals, and other request-scoped values across API boundaries
// and between processes.
// As of Go 1.7 this package is available in the standard library under the
// name context. https://golang.org/pkg/context.
//
// Incoming requests to a server should create a Context, and outgoing calls to
// servers should accept a Context. The chain of function calls between must
@@ -36,103 +38,6 @@
// Contexts.
package context // import "golang.org/x/net/context"
import "time"
// A Context carries a deadline, a cancelation signal, and other values across
// API boundaries.
//
// Context's methods may be called by multiple goroutines simultaneously.
type Context interface {
// Deadline returns the time when work done on behalf of this context
// should be canceled. Deadline returns ok==false when no deadline is
// set. Successive calls to Deadline return the same results.
Deadline() (deadline time.Time, ok bool)
// Done returns a channel that's closed when work done on behalf of this
// context should be canceled. Done may return nil if this context can
// never be canceled. Successive calls to Done return the same value.
//
// WithCancel arranges for Done to be closed when cancel is called;
// WithDeadline arranges for Done to be closed when the deadline
// expires; WithTimeout arranges for Done to be closed when the timeout
// elapses.
//
// Done is provided for use in select statements:
//
// // Stream generates values with DoSomething and sends them to out
// // until DoSomething returns an error or ctx.Done is closed.
// func Stream(ctx context.Context, out chan<- Value) error {
// for {
// v, err := DoSomething(ctx)
// if err != nil {
// return err
// }
// select {
// case <-ctx.Done():
// return ctx.Err()
// case out <- v:
// }
// }
// }
//
// See http://blog.golang.org/pipelines for more examples of how to use
// a Done channel for cancelation.
Done() <-chan struct{}
// Err returns a non-nil error value after Done is closed. Err returns
// Canceled if the context was canceled or DeadlineExceeded if the
// context's deadline passed. No other values for Err are defined.
// After Done is closed, successive calls to Err return the same value.
Err() error
// Value returns the value associated with this context for key, or nil
// if no value is associated with key. Successive calls to Value with
// the same key returns the same result.
//
// Use context values only for request-scoped data that transits
// processes and API boundaries, not for passing optional parameters to
// functions.
//
// A key identifies a specific value in a Context. Functions that wish
// to store values in Context typically allocate a key in a global
// variable then use that key as the argument to context.WithValue and
// Context.Value. A key can be any type that supports equality;
// packages should define keys as an unexported type to avoid
// collisions.
//
// Packages that define a Context key should provide type-safe accessors
// for the values stores using that key:
//
// // Package user defines a User type that's stored in Contexts.
// package user
//
// import "golang.org/x/net/context"
//
// // User is the type of value stored in the Contexts.
// type User struct {...}
//
// // key is an unexported type for keys defined in this package.
// // This prevents collisions with keys defined in other packages.
// type key int
//
// // userKey is the key for user.User values in Contexts. It is
// // unexported; clients use user.NewContext and user.FromContext
// // instead of using this key directly.
// var userKey key = 0
//
// // NewContext returns a new Context that carries value u.
// func NewContext(ctx context.Context, u *User) context.Context {
// return context.WithValue(ctx, userKey, u)
// }
//
// // FromContext returns the User value stored in ctx, if any.
// func FromContext(ctx context.Context) (*User, bool) {
// u, ok := ctx.Value(userKey).(*User)
// return u, ok
// }
Value(key interface{}) interface{}
}
// Background returns a non-nil, empty Context. It is never canceled, has no
// values, and has no deadline. It is typically used by the main function,
// initialization, and tests, and as the top-level Context for incoming
@@ -149,8 +54,3 @@ func Background() Context {
func TODO() Context {
return todo
}
// A CancelFunc tells an operation to abandon its work.
// A CancelFunc does not wait for the work to stop.
// After the first call, subsequent calls to a CancelFunc do nothing.
type CancelFunc func()

20
vendor/golang.org/x/net/context/go19.go generated vendored Normal file
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@@ -0,0 +1,20 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build go1.9
package context
import "context" // standard library's context, as of Go 1.7
// A Context carries a deadline, a cancelation signal, and other values across
// API boundaries.
//
// Context's methods may be called by multiple goroutines simultaneously.
type Context = context.Context
// A CancelFunc tells an operation to abandon its work.
// A CancelFunc does not wait for the work to stop.
// After the first call, subsequent calls to a CancelFunc do nothing.
type CancelFunc = context.CancelFunc

109
vendor/golang.org/x/net/context/pre_go19.go generated vendored Normal file
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@@ -0,0 +1,109 @@
// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !go1.9
package context
import "time"
// A Context carries a deadline, a cancelation signal, and other values across
// API boundaries.
//
// Context's methods may be called by multiple goroutines simultaneously.
type Context interface {
// Deadline returns the time when work done on behalf of this context
// should be canceled. Deadline returns ok==false when no deadline is
// set. Successive calls to Deadline return the same results.
Deadline() (deadline time.Time, ok bool)
// Done returns a channel that's closed when work done on behalf of this
// context should be canceled. Done may return nil if this context can
// never be canceled. Successive calls to Done return the same value.
//
// WithCancel arranges for Done to be closed when cancel is called;
// WithDeadline arranges for Done to be closed when the deadline
// expires; WithTimeout arranges for Done to be closed when the timeout
// elapses.
//
// Done is provided for use in select statements:
//
// // Stream generates values with DoSomething and sends them to out
// // until DoSomething returns an error or ctx.Done is closed.
// func Stream(ctx context.Context, out chan<- Value) error {
// for {
// v, err := DoSomething(ctx)
// if err != nil {
// return err
// }
// select {
// case <-ctx.Done():
// return ctx.Err()
// case out <- v:
// }
// }
// }
//
// See http://blog.golang.org/pipelines for more examples of how to use
// a Done channel for cancelation.
Done() <-chan struct{}
// Err returns a non-nil error value after Done is closed. Err returns
// Canceled if the context was canceled or DeadlineExceeded if the
// context's deadline passed. No other values for Err are defined.
// After Done is closed, successive calls to Err return the same value.
Err() error
// Value returns the value associated with this context for key, or nil
// if no value is associated with key. Successive calls to Value with
// the same key returns the same result.
//
// Use context values only for request-scoped data that transits
// processes and API boundaries, not for passing optional parameters to
// functions.
//
// A key identifies a specific value in a Context. Functions that wish
// to store values in Context typically allocate a key in a global
// variable then use that key as the argument to context.WithValue and
// Context.Value. A key can be any type that supports equality;
// packages should define keys as an unexported type to avoid
// collisions.
//
// Packages that define a Context key should provide type-safe accessors
// for the values stores using that key:
//
// // Package user defines a User type that's stored in Contexts.
// package user
//
// import "golang.org/x/net/context"
//
// // User is the type of value stored in the Contexts.
// type User struct {...}
//
// // key is an unexported type for keys defined in this package.
// // This prevents collisions with keys defined in other packages.
// type key int
//
// // userKey is the key for user.User values in Contexts. It is
// // unexported; clients use user.NewContext and user.FromContext
// // instead of using this key directly.
// var userKey key = 0
//
// // NewContext returns a new Context that carries value u.
// func NewContext(ctx context.Context, u *User) context.Context {
// return context.WithValue(ctx, userKey, u)
// }
//
// // FromContext returns the User value stored in ctx, if any.
// func FromContext(ctx context.Context) (*User, bool) {
// u, ok := ctx.Value(userKey).(*User)
// return u, ok
// }
Value(key interface{}) interface{}
}
// A CancelFunc tells an operation to abandon its work.
// A CancelFunc does not wait for the work to stop.
// After the first call, subsequent calls to a CancelFunc do nothing.
type CancelFunc func()

0
vendor/golang.org/x/net/internal/netreflect/LICENSE → vendor/golang.org/x/net/html/LICENSE generated vendored
View File

78
vendor/golang.org/x/net/html/atom/atom.go generated vendored Normal file
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@@ -0,0 +1,78 @@
// Copyright 2012 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package atom provides integer codes (also known as atoms) for a fixed set of
// frequently occurring HTML strings: tag names and attribute keys such as "p"
// and "id".
//
// Sharing an atom's name between all elements with the same tag can result in
// fewer string allocations when tokenizing and parsing HTML. Integer
// comparisons are also generally faster than string comparisons.
//
// The value of an atom's particular code is not guaranteed to stay the same
// between versions of this package. Neither is any ordering guaranteed:
// whether atom.H1 < atom.H2 may also change. The codes are not guaranteed to
// be dense. The only guarantees are that e.g. looking up "div" will yield
// atom.Div, calling atom.Div.String will return "div", and atom.Div != 0.
package atom // import "golang.org/x/net/html/atom"
// Atom is an integer code for a string. The zero value maps to "".
type Atom uint32
// String returns the atom's name.
func (a Atom) String() string {
start := uint32(a >> 8)
n := uint32(a & 0xff)
if start+n > uint32(len(atomText)) {
return ""
}
return atomText[start : start+n]
}
func (a Atom) string() string {
return atomText[a>>8 : a>>8+a&0xff]
}
// fnv computes the FNV hash with an arbitrary starting value h.
func fnv(h uint32, s []byte) uint32 {
for i := range s {
h ^= uint32(s[i])
h *= 16777619
}
return h
}
func match(s string, t []byte) bool {
for i, c := range t {
if s[i] != c {
return false
}
}
return true
}
// Lookup returns the atom whose name is s. It returns zero if there is no
// such atom. The lookup is case sensitive.
func Lookup(s []byte) Atom {
if len(s) == 0 || len(s) > maxAtomLen {
return 0
}
h := fnv(hash0, s)
if a := table[h&uint32(len(table)-1)]; int(a&0xff) == len(s) && match(a.string(), s) {
return a
}
if a := table[(h>>16)&uint32(len(table)-1)]; int(a&0xff) == len(s) && match(a.string(), s) {
return a
}
return 0
}
// String returns a string whose contents are equal to s. In that sense, it is
// equivalent to string(s) but may be more efficient.
func String(s []byte) string {
if a := Lookup(s); a != 0 {
return a.String()
}
return string(s)
}

709
vendor/golang.org/x/net/html/atom/gen.go generated vendored Normal file
View File

@@ -0,0 +1,709 @@
// Copyright 2012 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build ignore
//go:generate go run gen.go
//go:generate go run gen.go -test
package main
import (
"bytes"
"flag"
"fmt"
"go/format"
"io/ioutil"
"math/rand"
"os"
"sort"
"strings"
)
// identifier converts s to a Go exported identifier.
// It converts "div" to "Div" and "accept-charset" to "AcceptCharset".
func identifier(s string) string {
b := make([]byte, 0, len(s))
cap := true
for _, c := range s {
if c == '-' {
cap = true
continue
}
if cap && 'a' <= c && c <= 'z' {
c -= 'a' - 'A'
}
cap = false
b = append(b, byte(c))
}
return string(b)
}
var test = flag.Bool("test", false, "generate table_test.go")
func genFile(name string, buf *bytes.Buffer) {
b, err := format.Source(buf.Bytes())
if err != nil {
fmt.Fprintln(os.Stderr, err)
os.Exit(1)
}
if err := ioutil.WriteFile(name, b, 0644); err != nil {
fmt.Fprintln(os.Stderr, err)
os.Exit(1)
}
}
func main() {
flag.Parse()
var all []string
all = append(all, elements...)
all = append(all, attributes...)
all = append(all, eventHandlers...)
all = append(all, extra...)
sort.Strings(all)
// uniq - lists have dups
w := 0
for _, s := range all {
if w == 0 || all[w-1] != s {
all[w] = s
w++
}
}
all = all[:w]
if *test {
var buf bytes.Buffer
fmt.Fprintln(&buf, "// Code generated by go generate gen.go; DO NOT EDIT.\n")
fmt.Fprintln(&buf, "//go:generate go run gen.go -test\n")
fmt.Fprintln(&buf, "package atom\n")
fmt.Fprintln(&buf, "var testAtomList = []string{")
for _, s := range all {
fmt.Fprintf(&buf, "\t%q,\n", s)
}
fmt.Fprintln(&buf, "}")
genFile("table_test.go", &buf)
return
}
// Find hash that minimizes table size.
var best *table
for i := 0; i < 1000000; i++ {
if best != nil && 1<<(best.k-1) < len(all) {
break
}
h := rand.Uint32()
for k := uint(0); k <= 16; k++ {
if best != nil && k >= best.k {
break
}
var t table
if t.init(h, k, all) {
best = &t
break
}
}
}
if best == nil {
fmt.Fprintf(os.Stderr, "failed to construct string table\n")
os.Exit(1)
}
// Lay out strings, using overlaps when possible.
layout := append([]string{}, all...)
// Remove strings that are substrings of other strings
for changed := true; changed; {
changed = false
for i, s := range layout {
if s == "" {
continue
}
for j, t := range layout {
if i != j && t != "" && strings.Contains(s, t) {
changed = true
layout[j] = ""
}
}
}
}
// Join strings where one suffix matches another prefix.
for {
// Find best i, j, k such that layout[i][len-k:] == layout[j][:k],
// maximizing overlap length k.
besti := -1
bestj := -1
bestk := 0
for i, s := range layout {
if s == "" {
continue
}
for j, t := range layout {
if i == j {
continue
}
for k := bestk + 1; k <= len(s) && k <= len(t); k++ {
if s[len(s)-k:] == t[:k] {
besti = i
bestj = j
bestk = k
}
}
}
}
if bestk > 0 {
layout[besti] += layout[bestj][bestk:]
layout[bestj] = ""
continue
}
break
}
text := strings.Join(layout, "")
atom := map[string]uint32{}
for _, s := range all {
off := strings.Index(text, s)
if off < 0 {
panic("lost string " + s)
}
atom[s] = uint32(off<<8 | len(s))
}
var buf bytes.Buffer
// Generate the Go code.
fmt.Fprintln(&buf, "// Code generated by go generate gen.go; DO NOT EDIT.\n")
fmt.Fprintln(&buf, "//go:generate go run gen.go\n")
fmt.Fprintln(&buf, "package atom\n\nconst (")
// compute max len
maxLen := 0
for _, s := range all {
if maxLen < len(s) {
maxLen = len(s)
}
fmt.Fprintf(&buf, "\t%s Atom = %#x\n", identifier(s), atom[s])
}
fmt.Fprintln(&buf, ")\n")
fmt.Fprintf(&buf, "const hash0 = %#x\n\n", best.h0)
fmt.Fprintf(&buf, "const maxAtomLen = %d\n\n", maxLen)
fmt.Fprintf(&buf, "var table = [1<<%d]Atom{\n", best.k)
for i, s := range best.tab {
if s == "" {
continue
}
fmt.Fprintf(&buf, "\t%#x: %#x, // %s\n", i, atom[s], s)
}
fmt.Fprintf(&buf, "}\n")
datasize := (1 << best.k) * 4
fmt.Fprintln(&buf, "const atomText =")
textsize := len(text)
for len(text) > 60 {
fmt.Fprintf(&buf, "\t%q +\n", text[:60])
text = text[60:]
}
fmt.Fprintf(&buf, "\t%q\n\n", text)
genFile("table.go", &buf)
fmt.Fprintf(os.Stdout, "%d atoms; %d string bytes + %d tables = %d total data\n", len(all), textsize, datasize, textsize+datasize)
}
type byLen []string
func (x byLen) Less(i, j int) bool { return len(x[i]) > len(x[j]) }
func (x byLen) Swap(i, j int) { x[i], x[j] = x[j], x[i] }
func (x byLen) Len() int { return len(x) }
// fnv computes the FNV hash with an arbitrary starting value h.
func fnv(h uint32, s string) uint32 {
for i := 0; i < len(s); i++ {
h ^= uint32(s[i])
h *= 16777619
}
return h
}
// A table represents an attempt at constructing the lookup table.
// The lookup table uses cuckoo hashing, meaning that each string
// can be found in one of two positions.
type table struct {
h0 uint32
k uint
mask uint32
tab []string
}
// hash returns the two hashes for s.
func (t *table) hash(s string) (h1, h2 uint32) {
h := fnv(t.h0, s)
h1 = h & t.mask
h2 = (h >> 16) & t.mask
return
}
// init initializes the table with the given parameters.
// h0 is the initial hash value,
// k is the number of bits of hash value to use, and
// x is the list of strings to store in the table.
// init returns false if the table cannot be constructed.
func (t *table) init(h0 uint32, k uint, x []string) bool {
t.h0 = h0
t.k = k
t.tab = make([]string, 1<<k)
t.mask = 1<<k - 1
for _, s := range x {
if !t.insert(s) {
return false
}
}
return true
}
// insert inserts s in the table.
func (t *table) insert(s string) bool {
h1, h2 := t.hash(s)
if t.tab[h1] == "" {
t.tab[h1] = s
return true
}
if t.tab[h2] == "" {
t.tab[h2] = s
return true
}
if t.push(h1, 0) {
t.tab[h1] = s
return true
}
if t.push(h2, 0) {
t.tab[h2] = s
return true
}
return false
}
// push attempts to push aside the entry in slot i.
func (t *table) push(i uint32, depth int) bool {
if depth > len(t.tab) {
return false
}
s := t.tab[i]
h1, h2 := t.hash(s)
j := h1 + h2 - i
if t.tab[j] != "" && !t.push(j, depth+1) {
return false
}
t.tab[j] = s
return true
}
// The lists of element names and attribute keys were taken from
// https://html.spec.whatwg.org/multipage/indices.html#index
// as of the "HTML Living Standard - Last Updated 18 September 2017" version.
// "command", "keygen" and "menuitem" have been removed from the spec,
// but are kept here for backwards compatibility.
var elements = []string{
"a",
"abbr",
"address",
"area",
"article",
"aside",
"audio",
"b",
"base",
"bdi",
"bdo",
"blockquote",
"body",
"br",
"button",
"canvas",
"caption",
"cite",
"code",
"col",
"colgroup",
"command",
"data",
"datalist",
"dd",
"del",
"details",
"dfn",
"dialog",
"div",
"dl",
"dt",
"em",
"embed",
"fieldset",
"figcaption",
"figure",
"footer",
"form",
"h1",
"h2",
"h3",
"h4",
"h5",
"h6",
"head",
"header",
"hgroup",
"hr",
"html",
"i",
"iframe",
"img",
"input",
"ins",
"kbd",
"keygen",
"label",
"legend",
"li",
"link",
"main",
"map",
"mark",
"menu",
"menuitem",
"meta",
"meter",
"nav",
"noscript",
"object",
"ol",
"optgroup",
"option",
"output",
"p",
"param",
"picture",
"pre",
"progress",
"q",
"rp",
"rt",
"ruby",
"s",
"samp",
"script",
"section",
"select",
"slot",
"small",
"source",
"span",
"strong",
"style",
"sub",
"summary",
"sup",
"table",
"tbody",
"td",
"template",
"textarea",
"tfoot",
"th",
"thead",
"time",
"title",
"tr",
"track",
"u",
"ul",
"var",
"video",
"wbr",
}
// https://html.spec.whatwg.org/multipage/indices.html#attributes-3
//
// "challenge", "command", "contextmenu", "dropzone", "icon", "keytype", "mediagroup",
// "radiogroup", "spellcheck", "scoped", "seamless", "sortable" and "sorted" have been removed from the spec,
// but are kept here for backwards compatibility.
var attributes = []string{
"abbr",
"accept",
"accept-charset",
"accesskey",
"action",
"allowfullscreen",
"allowpaymentrequest",
"allowusermedia",
"alt",
"as",
"async",
"autocomplete",
"autofocus",
"autoplay",
"challenge",
"charset",
"checked",
"cite",
"class",
"color",
"cols",
"colspan",
"command",
"content",
"contenteditable",
"contextmenu",
"controls",
"coords",
"crossorigin",
"data",
"datetime",
"default",
"defer",
"dir",
"dirname",
"disabled",
"download",
"draggable",
"dropzone",
"enctype",
"for",
"form",
"formaction",
"formenctype",
"formmethod",
"formnovalidate",
"formtarget",
"headers",
"height",
"hidden",
"high",
"href",
"hreflang",
"http-equiv",
"icon",
"id",
"inputmode",
"integrity",
"is",
"ismap",
"itemid",
"itemprop",
"itemref",
"itemscope",
"itemtype",
"keytype",
"kind",
"label",
"lang",
"list",
"loop",
"low",
"manifest",
"max",
"maxlength",
"media",
"mediagroup",
"method",
"min",
"minlength",
"multiple",
"muted",
"name",
"nomodule",
"nonce",
"novalidate",
"open",
"optimum",
"pattern",
"ping",
"placeholder",
"playsinline",
"poster",
"preload",
"radiogroup",
"readonly",
"referrerpolicy",
"rel",
"required",
"reversed",
"rows",
"rowspan",
"sandbox",
"spellcheck",
"scope",
"scoped",
"seamless",
"selected",
"shape",
"size",
"sizes",
"sortable",
"sorted",
"slot",
"span",
"spellcheck",
"src",
"srcdoc",
"srclang",
"srcset",
"start",
"step",
"style",
"tabindex",
"target",
"title",
"translate",
"type",
"typemustmatch",
"updateviacache",
"usemap",
"value",
"width",
"workertype",
"wrap",
}
// "onautocomplete", "onautocompleteerror", "onmousewheel",
// "onshow" and "onsort" have been removed from the spec,
// but are kept here for backwards compatibility.
var eventHandlers = []string{
"onabort",
"onautocomplete",
"onautocompleteerror",
"onauxclick",
"onafterprint",
"onbeforeprint",
"onbeforeunload",
"onblur",
"oncancel",
"oncanplay",
"oncanplaythrough",
"onchange",
"onclick",
"onclose",
"oncontextmenu",
"oncopy",
"oncuechange",
"oncut",
"ondblclick",
"ondrag",
"ondragend",
"ondragenter",
"ondragexit",
"ondragleave",
"ondragover",
"ondragstart",
"ondrop",
"ondurationchange",
"onemptied",
"onended",
"onerror",
"onfocus",
"onhashchange",
"oninput",
"oninvalid",
"onkeydown",
"onkeypress",
"onkeyup",
"onlanguagechange",
"onload",
"onloadeddata",
"onloadedmetadata",
"onloadend",
"onloadstart",
"onmessage",
"onmessageerror",
"onmousedown",
"onmouseenter",
"onmouseleave",
"onmousemove",
"onmouseout",
"onmouseover",
"onmouseup",
"onmousewheel",
"onwheel",
"onoffline",
"ononline",
"onpagehide",
"onpageshow",
"onpaste",
"onpause",
"onplay",
"onplaying",
"onpopstate",
"onprogress",
"onratechange",
"onreset",
"onresize",
"onrejectionhandled",
"onscroll",
"onsecuritypolicyviolation",
"onseeked",
"onseeking",
"onselect",
"onshow",
"onsort",
"onstalled",
"onstorage",
"onsubmit",
"onsuspend",
"ontimeupdate",
"ontoggle",
"onunhandledrejection",
"onunload",
"onvolumechange",
"onwaiting",
}
// extra are ad-hoc values not covered by any of the lists above.
var extra = []string{
"align",
"annotation",
"annotation-xml",
"applet",
"basefont",
"bgsound",
"big",
"blink",
"center",
"color",
"desc",
"face",
"font",
"foreignObject", // HTML is case-insensitive, but SVG-embedded-in-HTML is case-sensitive.
"foreignobject",
"frame",
"frameset",
"image",
"isindex",
"listing",
"malignmark",
"marquee",
"math",
"mglyph",
"mi",
"mn",
"mo",
"ms",
"mtext",
"nobr",
"noembed",
"noframes",
"plaintext",
"prompt",
"public",
"spacer",
"strike",
"svg",
"system",
"tt",
"xmp",
}

777
vendor/golang.org/x/net/html/atom/table.go generated vendored Normal file
View File

@@ -0,0 +1,777 @@
// Code generated by go generate gen.go; DO NOT EDIT.
//go:generate go run gen.go
package atom
const (
A Atom = 0x1
Abbr Atom = 0x4
Accept Atom = 0x1a06
AcceptCharset Atom = 0x1a0e
Accesskey Atom = 0x2c09
Action Atom = 0x25a06
Address Atom = 0x6ed07
Align Atom = 0x6d405
Allowfullscreen Atom = 0x1f00f
Allowpaymentrequest Atom = 0x6913
Allowusermedia Atom = 0x850e
Alt Atom = 0xb003
Annotation Atom = 0x1b90a
AnnotationXml Atom = 0x1b90e
Applet Atom = 0x30106
Area Atom = 0x34a04
Article Atom = 0x3f007
As Atom = 0xb902
Aside Atom = 0xc105
Async Atom = 0xb905
Audio Atom = 0xcf05
Autocomplete Atom = 0x2600c
Autofocus Atom = 0xeb09
Autoplay Atom = 0x10608
B Atom = 0x101
Base Atom = 0x11504
Basefont Atom = 0x11508
Bdi Atom = 0x16103
Bdo Atom = 0x13403
Bgsound Atom = 0x14707
Big Atom = 0x15903
Blink Atom = 0x15c05
Blockquote Atom = 0x1680a
Body Atom = 0x2804
Br Atom = 0x202
Button Atom = 0x17206
Canvas Atom = 0xbd06
Caption Atom = 0x21907
Center Atom = 0x20806
Challenge Atom = 0x28309
Charset Atom = 0x2107
Checked Atom = 0x46d07
Cite Atom = 0x55804
Class Atom = 0x5b905
Code Atom = 0x19004
Col Atom = 0x19703
Colgroup Atom = 0x19708
Color Atom = 0x1af05
Cols Atom = 0x1b404
Colspan Atom = 0x1b407
Command Atom = 0x1c707
Content Atom = 0x57f07
Contenteditable Atom = 0x57f0f
Contextmenu Atom = 0x3740b
Controls Atom = 0x1ce08
Coords Atom = 0x1da06
Crossorigin Atom = 0x1e30b
Data Atom = 0x49904
Datalist Atom = 0x49908
Datetime Atom = 0x2a008
Dd Atom = 0x2bf02
Default Atom = 0xc407
Defer Atom = 0x19205
Del Atom = 0x44603
Desc Atom = 0x55504
Details Atom = 0x4607
Dfn Atom = 0x5f03
Dialog Atom = 0x16206
Dir Atom = 0xa303
Dirname Atom = 0xa307
Disabled Atom = 0x14d08
Div Atom = 0x15403
Dl Atom = 0x5e202
Download Atom = 0x45708
Draggable Atom = 0x18309
Dropzone Atom = 0x3f908
Dt Atom = 0x64702
Em Atom = 0x4202
Embed Atom = 0x4205
Enctype Atom = 0x27507
Face Atom = 0x20604
Fieldset Atom = 0x20e08
Figcaption Atom = 0x2160a
Figure Atom = 0x23006
Font Atom = 0x11904
Footer Atom = 0xb306
For Atom = 0x23c03
ForeignObject Atom = 0x23c0d
Foreignobject Atom = 0x2490d
Form Atom = 0x25604
Formaction Atom = 0x2560a
Formenctype Atom = 0x2710b
Formmethod Atom = 0x28c0a
Formnovalidate Atom = 0x2960e
Formtarget Atom = 0x2a80a
Frame Atom = 0x5705
Frameset Atom = 0x5708
H1 Atom = 0x14502
H2 Atom = 0x2c602
H3 Atom = 0x2f502
H4 Atom = 0x33902
H5 Atom = 0x34302
H6 Atom = 0x64902
Head Atom = 0x32504
Header Atom = 0x32506
Headers Atom = 0x32507
Height Atom = 0x12c06
Hgroup Atom = 0x2b206
Hidden Atom = 0x2bd06
High Atom = 0x2c304
Hr Atom = 0x14002
Href Atom = 0x2c804
Hreflang Atom = 0x2c808
Html Atom = 0x13004
HttpEquiv Atom = 0x2d00a
I Atom = 0x601
Icon Atom = 0x57e04
Id Atom = 0xc302
Iframe Atom = 0x2e406
Image Atom = 0x2ea05
Img Atom = 0x2ef03
Input Atom = 0x43f05
Inputmode Atom = 0x43f09
Ins Atom = 0x1ec03
Integrity Atom = 0x22709
Is Atom = 0x14e02
Isindex Atom = 0x2f707
Ismap Atom = 0x2fe05
Itemid Atom = 0x37f06
Itemprop Atom = 0x55908
Itemref Atom = 0x3c107
Itemscope Atom = 0x66d09
Itemtype Atom = 0x30708
Kbd Atom = 0x16003
Keygen Atom = 0x3206
Keytype Atom = 0x7e07
Kind Atom = 0x18004
Label Atom = 0xda05
Lang Atom = 0x2cc04
Legend Atom = 0x18a06
Li Atom = 0x11102
Link Atom = 0x15d04
List Atom = 0x49d04
Listing Atom = 0x49d07
Loop Atom = 0xde04
Low Atom = 0x6b03
Main Atom = 0x1004
Malignmark Atom = 0x6d30a
Manifest Atom = 0x30f08
Map Atom = 0x30003
Mark Atom = 0x6d904
Marquee Atom = 0x31b07
Math Atom = 0x32204
Max Atom = 0x33103
Maxlength Atom = 0x33109
Media Atom = 0x8e05
Mediagroup Atom = 0x8e0a
Menu Atom = 0x37b04
Menuitem Atom = 0x37b08
Meta Atom = 0x4ac04
Meter Atom = 0xa805
Method Atom = 0x29006
Mglyph Atom = 0x2f006
Mi Atom = 0x33b02
Min Atom = 0x33b03
Minlength Atom = 0x33b09
Mn Atom = 0x29902
Mo Atom = 0x6302
Ms Atom = 0x67002
Mtext Atom = 0x34505
Multiple Atom = 0x35308
Muted Atom = 0x35b05
Name Atom = 0xa604
Nav Atom = 0x1303
Nobr Atom = 0x3704
Noembed Atom = 0x4007
Noframes Atom = 0x5508
Nomodule Atom = 0x6108
Nonce Atom = 0x56205
Noscript Atom = 0x1fe08
Novalidate Atom = 0x29a0a
Object Atom = 0x25006
Ol Atom = 0x10102
Onabort Atom = 0x17607
Onafterprint Atom = 0x21e0c
Onautocomplete Atom = 0x25e0e
Onautocompleteerror Atom = 0x25e13
Onauxclick Atom = 0x61b0a
Onbeforeprint Atom = 0x69a0d
Onbeforeunload Atom = 0x6e10e
Onblur Atom = 0x5c206
Oncancel Atom = 0xd308
Oncanplay Atom = 0x13609
Oncanplaythrough Atom = 0x13610
Onchange Atom = 0x40f08
Onclick Atom = 0x2dd07
Onclose Atom = 0x36007
Oncontextmenu Atom = 0x3720d
Oncopy Atom = 0x38506
Oncuechange Atom = 0x38b0b
Oncut Atom = 0x39605
Ondblclick Atom = 0x39b0a
Ondrag Atom = 0x3a506
Ondragend Atom = 0x3a509
Ondragenter Atom = 0x3ae0b
Ondragexit Atom = 0x3b90a
Ondragleave Atom = 0x3d30b
Ondragover Atom = 0x3de0a
Ondragstart Atom = 0x3e80b
Ondrop Atom = 0x3f706
Ondurationchange Atom = 0x40710
Onemptied Atom = 0x3fe09
Onended Atom = 0x41707
Onerror Atom = 0x41e07
Onfocus Atom = 0x42507
Onhashchange Atom = 0x4310c
Oninput Atom = 0x43d07
Oninvalid Atom = 0x44909
Onkeydown Atom = 0x45209
Onkeypress Atom = 0x45f0a
Onkeyup Atom = 0x47407
Onlanguagechange Atom = 0x48110
Onload Atom = 0x49106
Onloadeddata Atom = 0x4910c
Onloadedmetadata Atom = 0x4a410
Onloadend Atom = 0x4ba09
Onloadstart Atom = 0x4c30b
Onmessage Atom = 0x4ce09
Onmessageerror Atom = 0x4ce0e
Onmousedown Atom = 0x4dc0b
Onmouseenter Atom = 0x4e70c
Onmouseleave Atom = 0x4f30c
Onmousemove Atom = 0x4ff0b
Onmouseout Atom = 0x50a0a
Onmouseover Atom = 0x5170b
Onmouseup Atom = 0x52209
Onmousewheel Atom = 0x5300c
Onoffline Atom = 0x53c09
Ononline Atom = 0x54508
Onpagehide Atom = 0x54d0a
Onpageshow Atom = 0x5670a
Onpaste Atom = 0x57307
Onpause Atom = 0x58e07
Onplay Atom = 0x59806
Onplaying Atom = 0x59809
Onpopstate Atom = 0x5a10a
Onprogress Atom = 0x5ab0a
Onratechange Atom = 0x5c80c
Onrejectionhandled Atom = 0x5d412
Onreset Atom = 0x5e607
Onresize Atom = 0x5ed08
Onscroll Atom = 0x5fc08
Onsecuritypolicyviolation Atom = 0x60419
Onseeked Atom = 0x62508
Onseeking Atom = 0x62d09
Onselect Atom = 0x63608
Onshow Atom = 0x64006
Onsort Atom = 0x64b06
Onstalled Atom = 0x65509
Onstorage Atom = 0x65e09
Onsubmit Atom = 0x66708
Onsuspend Atom = 0x67709
Ontimeupdate Atom = 0x11a0c
Ontoggle Atom = 0x68008
Onunhandledrejection Atom = 0x68814
Onunload Atom = 0x6a708
Onvolumechange Atom = 0x6af0e
Onwaiting Atom = 0x6bd09
Onwheel Atom = 0x6c607
Open Atom = 0x55f04
Optgroup Atom = 0xe008
Optimum Atom = 0x6cd07
Option Atom = 0x6dd06
Output Atom = 0x51106
P Atom = 0xc01
Param Atom = 0xc05
Pattern Atom = 0x4f07
Picture Atom = 0x9707
Ping Atom = 0xe704
Placeholder Atom = 0xfb0b
Plaintext Atom = 0x19e09
Playsinline Atom = 0x10a0b
Poster Atom = 0x2b706
Pre Atom = 0x46403
Preload Atom = 0x47a07
Progress Atom = 0x5ad08
Prompt Atom = 0x52a06
Public Atom = 0x57a06
Q Atom = 0x7701
Radiogroup Atom = 0x30a
Readonly Atom = 0x34b08
Referrerpolicy Atom = 0x3c50e
Rel Atom = 0x47b03
Required Atom = 0x23408
Reversed Atom = 0x9c08
Rows Atom = 0x3a04
Rowspan Atom = 0x3a07
Rp Atom = 0x22402
Rt Atom = 0x17b02
Ruby Atom = 0xac04
S Atom = 0x2501
Samp Atom = 0x4c04
Sandbox Atom = 0xf307
Scope Atom = 0x67105
Scoped Atom = 0x67106
Script Atom = 0x20006
Seamless Atom = 0x36508
Section Atom = 0x5bd07
Select Atom = 0x63806
Selected Atom = 0x63808
Shape Atom = 0x1d505
Size Atom = 0x5f104
Sizes Atom = 0x5f105
Slot Atom = 0x1df04
Small Atom = 0x1ee05
Sortable Atom = 0x64d08
Sorted Atom = 0x32b06
Source Atom = 0x36c06
Spacer Atom = 0x42b06
Span Atom = 0x3d04
Spellcheck Atom = 0x4680a
Src Atom = 0x5b403
Srcdoc Atom = 0x5b406
Srclang Atom = 0x5f507
Srcset Atom = 0x6f306
Start Atom = 0x3ee05
Step Atom = 0x57704
Strike Atom = 0x7a06
Strong Atom = 0x31506
Style Atom = 0x6f905
Sub Atom = 0x66903
Summary Atom = 0x6fe07
Sup Atom = 0x70503
Svg Atom = 0x70803
System Atom = 0x70b06
Tabindex Atom = 0x4b208
Table Atom = 0x58905
Target Atom = 0x2ac06
Tbody Atom = 0x2705
Td Atom = 0x5e02
Template Atom = 0x70e08
Textarea Atom = 0x34608
Tfoot Atom = 0xb205
Th Atom = 0x13f02
Thead Atom = 0x32405
Time Atom = 0x11c04
Title Atom = 0xca05
Tr Atom = 0x7402
Track Atom = 0x17c05
Translate Atom = 0x1a609
Tt Atom = 0x5102
Type Atom = 0x8104
Typemustmatch Atom = 0x2780d
U Atom = 0xb01
Ul Atom = 0x6602
Updateviacache Atom = 0x1200e
Usemap Atom = 0x59206
Value Atom = 0x1505
Var Atom = 0x15603
Video Atom = 0x2d905
Wbr Atom = 0x57003
Width Atom = 0x64505
Workertype Atom = 0x7160a
Wrap Atom = 0x72004
Xmp Atom = 0xf903
)
const hash0 = 0x81cdf10e
const maxAtomLen = 25
var table = [1 << 9]Atom{
0x1: 0x8e0a, // mediagroup
0x2: 0x2cc04, // lang
0x4: 0x2c09, // accesskey
0x5: 0x5708, // frameset
0x7: 0x63608, // onselect
0x8: 0x70b06, // system
0xa: 0x64505, // width
0xc: 0x2710b, // formenctype
0xd: 0x10102, // ol
0xe: 0x38b0b, // oncuechange
0x10: 0x13403, // bdo
0x11: 0xcf05, // audio
0x12: 0x18309, // draggable
0x14: 0x2d905, // video
0x15: 0x29902, // mn
0x16: 0x37b04, // menu
0x17: 0x2b706, // poster
0x19: 0xb306, // footer
0x1a: 0x29006, // method
0x1b: 0x2a008, // datetime
0x1c: 0x17607, // onabort
0x1d: 0x1200e, // updateviacache
0x1e: 0xb905, // async
0x1f: 0x49106, // onload
0x21: 0xd308, // oncancel
0x22: 0x62508, // onseeked
0x23: 0x2ea05, // image
0x24: 0x5d412, // onrejectionhandled
0x26: 0x15d04, // link
0x27: 0x51106, // output
0x28: 0x32504, // head
0x29: 0x4f30c, // onmouseleave
0x2a: 0x57307, // onpaste
0x2b: 0x59809, // onplaying
0x2c: 0x1b407, // colspan
0x2f: 0x1af05, // color
0x30: 0x5f104, // size
0x31: 0x2d00a, // http-equiv
0x33: 0x601, // i
0x34: 0x54d0a, // onpagehide
0x35: 0x68814, // onunhandledrejection
0x37: 0x41e07, // onerror
0x3a: 0x11508, // basefont
0x3f: 0x1303, // nav
0x40: 0x18004, // kind
0x41: 0x34b08, // readonly
0x42: 0x2f006, // mglyph
0x44: 0x11102, // li
0x46: 0x2bd06, // hidden
0x47: 0x70803, // svg
0x48: 0x57704, // step
0x49: 0x22709, // integrity
0x4a: 0x57a06, // public
0x4c: 0x19703, // col
0x4d: 0x1680a, // blockquote
0x4e: 0x34302, // h5
0x50: 0x5ad08, // progress
0x51: 0x5f105, // sizes
0x52: 0x33902, // h4
0x56: 0x32405, // thead
0x57: 0x7e07, // keytype
0x58: 0x5ab0a, // onprogress
0x59: 0x43f09, // inputmode
0x5a: 0x3a509, // ondragend
0x5d: 0x39605, // oncut
0x5e: 0x42b06, // spacer
0x5f: 0x19708, // colgroup
0x62: 0x14e02, // is
0x65: 0xb902, // as
0x66: 0x53c09, // onoffline
0x67: 0x32b06, // sorted
0x69: 0x48110, // onlanguagechange
0x6c: 0x4310c, // onhashchange
0x6d: 0xa604, // name
0x6e: 0xb205, // tfoot
0x6f: 0x55504, // desc
0x70: 0x33103, // max
0x72: 0x1da06, // coords
0x73: 0x2f502, // h3
0x74: 0x6e10e, // onbeforeunload
0x75: 0x3a04, // rows
0x76: 0x63806, // select
0x77: 0xa805, // meter
0x78: 0x37f06, // itemid
0x79: 0x5300c, // onmousewheel
0x7a: 0x5b406, // srcdoc
0x7d: 0x17c05, // track
0x7f: 0x30708, // itemtype
0x82: 0x6302, // mo
0x83: 0x40f08, // onchange
0x84: 0x32507, // headers
0x85: 0x5c80c, // onratechange
0x86: 0x60419, // onsecuritypolicyviolation
0x88: 0x49908, // datalist
0x89: 0x4dc0b, // onmousedown
0x8a: 0x1df04, // slot
0x8b: 0x4a410, // onloadedmetadata
0x8c: 0x1a06, // accept
0x8d: 0x25006, // object
0x91: 0x6af0e, // onvolumechange
0x92: 0x2107, // charset
0x93: 0x25e13, // onautocompleteerror
0x94: 0x6913, // allowpaymentrequest
0x95: 0x2804, // body
0x96: 0xc407, // default
0x97: 0x63808, // selected
0x98: 0x20604, // face
0x99: 0x1d505, // shape
0x9b: 0x68008, // ontoggle
0x9e: 0x64702, // dt
0x9f: 0x6d904, // mark
0xa1: 0xb01, // u
0xa4: 0x6a708, // onunload
0xa5: 0xde04, // loop
0xa6: 0x14d08, // disabled
0xaa: 0x41707, // onended
0xab: 0x6d30a, // malignmark
0xad: 0x67709, // onsuspend
0xae: 0x34505, // mtext
0xaf: 0x64b06, // onsort
0xb0: 0x55908, // itemprop
0xb3: 0x66d09, // itemscope
0xb4: 0x15c05, // blink
0xb6: 0x3a506, // ondrag
0xb7: 0x6602, // ul
0xb8: 0x25604, // form
0xb9: 0xf307, // sandbox
0xba: 0x5705, // frame
0xbb: 0x1505, // value
0xbc: 0x65e09, // onstorage
0xc0: 0x17b02, // rt
0xc2: 0x202, // br
0xc3: 0x20e08, // fieldset
0xc4: 0x2780d, // typemustmatch
0xc5: 0x6108, // nomodule
0xc6: 0x4007, // noembed
0xc7: 0x69a0d, // onbeforeprint
0xc8: 0x17206, // button
0xc9: 0x2dd07, // onclick
0xca: 0x6fe07, // summary
0xcd: 0xac04, // ruby
0xce: 0x5b905, // class
0xcf: 0x3e80b, // ondragstart
0xd0: 0x21907, // caption
0xd4: 0x850e, // allowusermedia
0xd5: 0x4c30b, // onloadstart
0xd9: 0x15403, // div
0xda: 0x49d04, // list
0xdb: 0x32204, // math
0xdc: 0x43f05, // input
0xdf: 0x3de0a, // ondragover
0xe0: 0x2c602, // h2
0xe2: 0x19e09, // plaintext
0xe4: 0x4e70c, // onmouseenter
0xe7: 0x46d07, // checked
0xe8: 0x46403, // pre
0xea: 0x35308, // multiple
0xeb: 0x16103, // bdi
0xec: 0x33109, // maxlength
0xed: 0x7701, // q
0xee: 0x61b0a, // onauxclick
0xf0: 0x57003, // wbr
0xf2: 0x11504, // base
0xf3: 0x6dd06, // option
0xf5: 0x40710, // ondurationchange
0xf7: 0x5508, // noframes
0xf9: 0x3f908, // dropzone
0xfb: 0x67105, // scope
0xfc: 0x9c08, // reversed
0xfd: 0x3ae0b, // ondragenter
0xfe: 0x3ee05, // start
0xff: 0xf903, // xmp
0x100: 0x5f507, // srclang
0x101: 0x2ef03, // img
0x104: 0x101, // b
0x105: 0x23c03, // for
0x106: 0xc105, // aside
0x107: 0x43d07, // oninput
0x108: 0x34a04, // area
0x109: 0x28c0a, // formmethod
0x10a: 0x72004, // wrap
0x10c: 0x22402, // rp
0x10d: 0x45f0a, // onkeypress
0x10e: 0x5102, // tt
0x110: 0x33b02, // mi
0x111: 0x35b05, // muted
0x112: 0xb003, // alt
0x113: 0x19004, // code
0x114: 0x4202, // em
0x115: 0x3b90a, // ondragexit
0x117: 0x3d04, // span
0x119: 0x30f08, // manifest
0x11a: 0x37b08, // menuitem
0x11b: 0x57f07, // content
0x11d: 0x6bd09, // onwaiting
0x11f: 0x4ba09, // onloadend
0x121: 0x3720d, // oncontextmenu
0x123: 0x5c206, // onblur
0x124: 0x3f007, // article
0x125: 0xa303, // dir
0x126: 0xe704, // ping
0x127: 0x23408, // required
0x128: 0x44909, // oninvalid
0x129: 0x6d405, // align
0x12b: 0x57e04, // icon
0x12c: 0x64902, // h6
0x12d: 0x1b404, // cols
0x12e: 0x2160a, // figcaption
0x12f: 0x45209, // onkeydown
0x130: 0x66708, // onsubmit
0x131: 0x13609, // oncanplay
0x132: 0x70503, // sup
0x133: 0xc01, // p
0x135: 0x3fe09, // onemptied
0x136: 0x38506, // oncopy
0x137: 0x55804, // cite
0x138: 0x39b0a, // ondblclick
0x13a: 0x4ff0b, // onmousemove
0x13c: 0x66903, // sub
0x13d: 0x47b03, // rel
0x13e: 0xe008, // optgroup
0x142: 0x3a07, // rowspan
0x143: 0x36c06, // source
0x144: 0x1fe08, // noscript
0x145: 0x55f04, // open
0x146: 0x1ec03, // ins
0x147: 0x23c0d, // foreignObject
0x148: 0x5a10a, // onpopstate
0x14a: 0x27507, // enctype
0x14b: 0x25e0e, // onautocomplete
0x14c: 0x34608, // textarea
0x14e: 0x2600c, // autocomplete
0x14f: 0x14002, // hr
0x150: 0x1ce08, // controls
0x151: 0xc302, // id
0x153: 0x21e0c, // onafterprint
0x155: 0x2490d, // foreignobject
0x156: 0x31b07, // marquee
0x157: 0x58e07, // onpause
0x158: 0x5e202, // dl
0x159: 0x12c06, // height
0x15a: 0x33b03, // min
0x15b: 0xa307, // dirname
0x15c: 0x1a609, // translate
0x15d: 0x13004, // html
0x15e: 0x33b09, // minlength
0x15f: 0x47a07, // preload
0x160: 0x70e08, // template
0x161: 0x3d30b, // ondragleave
0x164: 0x5b403, // src
0x165: 0x31506, // strong
0x167: 0x4c04, // samp
0x168: 0x6ed07, // address
0x169: 0x54508, // ononline
0x16b: 0xfb0b, // placeholder
0x16c: 0x2ac06, // target
0x16d: 0x1ee05, // small
0x16e: 0x6c607, // onwheel
0x16f: 0x1b90a, // annotation
0x170: 0x4680a, // spellcheck
0x171: 0x4607, // details
0x172: 0xbd06, // canvas
0x173: 0xeb09, // autofocus
0x174: 0xc05, // param
0x176: 0x45708, // download
0x177: 0x44603, // del
0x178: 0x36007, // onclose
0x179: 0x16003, // kbd
0x17a: 0x30106, // applet
0x17b: 0x2c804, // href
0x17c: 0x5ed08, // onresize
0x17e: 0x4910c, // onloadeddata
0x180: 0x7402, // tr
0x181: 0x2a80a, // formtarget
0x182: 0xca05, // title
0x183: 0x6f905, // style
0x184: 0x7a06, // strike
0x185: 0x59206, // usemap
0x186: 0x2e406, // iframe
0x187: 0x1004, // main
0x189: 0x9707, // picture
0x18c: 0x2fe05, // ismap
0x18e: 0x49904, // data
0x18f: 0xda05, // label
0x191: 0x3c50e, // referrerpolicy
0x192: 0x13f02, // th
0x194: 0x52a06, // prompt
0x195: 0x5bd07, // section
0x197: 0x6cd07, // optimum
0x198: 0x2c304, // high
0x199: 0x14502, // h1
0x19a: 0x65509, // onstalled
0x19b: 0x15603, // var
0x19c: 0x11c04, // time
0x19e: 0x67002, // ms
0x19f: 0x32506, // header
0x1a0: 0x4ce09, // onmessage
0x1a1: 0x56205, // nonce
0x1a2: 0x2560a, // formaction
0x1a3: 0x20806, // center
0x1a4: 0x3704, // nobr
0x1a5: 0x58905, // table
0x1a6: 0x49d07, // listing
0x1a7: 0x18a06, // legend
0x1a9: 0x28309, // challenge
0x1aa: 0x23006, // figure
0x1ab: 0x8e05, // media
0x1ae: 0x8104, // type
0x1af: 0x11904, // font
0x1b0: 0x4ce0e, // onmessageerror
0x1b1: 0x36508, // seamless
0x1b2: 0x5f03, // dfn
0x1b3: 0x19205, // defer
0x1b4: 0x6b03, // low
0x1b5: 0x62d09, // onseeking
0x1b6: 0x5170b, // onmouseover
0x1b7: 0x29a0a, // novalidate
0x1b8: 0x7160a, // workertype
0x1ba: 0x3c107, // itemref
0x1bd: 0x1, // a
0x1be: 0x30003, // map
0x1bf: 0x11a0c, // ontimeupdate
0x1c0: 0x14707, // bgsound
0x1c1: 0x3206, // keygen
0x1c2: 0x2705, // tbody
0x1c5: 0x64006, // onshow
0x1c7: 0x2501, // s
0x1c8: 0x4f07, // pattern
0x1cc: 0x13610, // oncanplaythrough
0x1ce: 0x2bf02, // dd
0x1cf: 0x6f306, // srcset
0x1d0: 0x15903, // big
0x1d2: 0x64d08, // sortable
0x1d3: 0x47407, // onkeyup
0x1d5: 0x59806, // onplay
0x1d7: 0x4ac04, // meta
0x1d8: 0x3f706, // ondrop
0x1da: 0x5fc08, // onscroll
0x1db: 0x1e30b, // crossorigin
0x1dc: 0x5670a, // onpageshow
0x1dd: 0x4, // abbr
0x1de: 0x5e02, // td
0x1df: 0x57f0f, // contenteditable
0x1e0: 0x25a06, // action
0x1e1: 0x10a0b, // playsinline
0x1e2: 0x42507, // onfocus
0x1e3: 0x2c808, // hreflang
0x1e5: 0x50a0a, // onmouseout
0x1e6: 0x5e607, // onreset
0x1e7: 0x10608, // autoplay
0x1ea: 0x67106, // scoped
0x1ec: 0x30a, // radiogroup
0x1ee: 0x3740b, // contextmenu
0x1ef: 0x52209, // onmouseup
0x1f1: 0x2b206, // hgroup
0x1f2: 0x1f00f, // allowfullscreen
0x1f3: 0x4b208, // tabindex
0x1f6: 0x2f707, // isindex
0x1f7: 0x1a0e, // accept-charset
0x1f8: 0x2960e, // formnovalidate
0x1fb: 0x1b90e, // annotation-xml
0x1fc: 0x4205, // embed
0x1fd: 0x20006, // script
0x1fe: 0x16206, // dialog
0x1ff: 0x1c707, // command
}
const atomText = "abbradiogrouparamainavalueaccept-charsetbodyaccesskeygenobro" +
"wspanoembedetailsampatternoframesetdfnomoduleallowpaymentreq" +
"uestrikeytypeallowusermediagroupictureversedirnameterubyaltf" +
"ooterasyncanvasidefaultitleaudioncancelabelooptgroupingautof" +
"ocusandboxmplaceholderautoplaysinlinebasefontimeupdateviacac" +
"heightmlbdoncanplaythrough1bgsoundisabledivarbigblinkbdialog" +
"blockquotebuttonabortrackindraggablegendcodefercolgrouplaint" +
"extranslatecolorcolspannotation-xmlcommandcontrolshapecoords" +
"lotcrossoriginsmallowfullscreenoscriptfacenterfieldsetfigcap" +
"tionafterprintegrityfigurequiredforeignObjectforeignobjectfo" +
"rmactionautocompleteerrorformenctypemustmatchallengeformmeth" +
"odformnovalidatetimeformtargethgrouposterhiddenhigh2hreflang" +
"http-equivideonclickiframeimageimglyph3isindexismappletitemt" +
"ypemanifestrongmarqueematheadersortedmaxlength4minlength5mte" +
"xtareadonlymultiplemutedoncloseamlessourceoncontextmenuitemi" +
"doncopyoncuechangeoncutondblclickondragendondragenterondrage" +
"xitemreferrerpolicyondragleaveondragoverondragstarticleondro" +
"pzonemptiedondurationchangeonendedonerroronfocuspaceronhashc" +
"hangeoninputmodeloninvalidonkeydownloadonkeypresspellchecked" +
"onkeyupreloadonlanguagechangeonloadeddatalistingonloadedmeta" +
"databindexonloadendonloadstartonmessageerroronmousedownonmou" +
"seenteronmouseleaveonmousemoveonmouseoutputonmouseoveronmous" +
"eupromptonmousewheelonofflineononlineonpagehidescitempropeno" +
"nceonpageshowbronpastepublicontenteditableonpausemaponplayin" +
"gonpopstateonprogressrcdoclassectionbluronratechangeonreject" +
"ionhandledonresetonresizesrclangonscrollonsecuritypolicyviol" +
"ationauxclickonseekedonseekingonselectedonshowidth6onsortabl" +
"eonstalledonstorageonsubmitemscopedonsuspendontoggleonunhand" +
"ledrejectionbeforeprintonunloadonvolumechangeonwaitingonwhee" +
"loptimumalignmarkoptionbeforeunloaddressrcsetstylesummarysup" +
"svgsystemplateworkertypewrap"

257
vendor/golang.org/x/net/html/charset/charset.go generated vendored Normal file
View File

@@ -0,0 +1,257 @@
// Copyright 2013 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package charset provides common text encodings for HTML documents.
//
// The mapping from encoding labels to encodings is defined at
// https://encoding.spec.whatwg.org/.
package charset // import "golang.org/x/net/html/charset"
import (
"bytes"
"fmt"
"io"
"mime"
"strings"
"unicode/utf8"
"golang.org/x/net/html"
"golang.org/x/text/encoding"
"golang.org/x/text/encoding/charmap"
"golang.org/x/text/encoding/htmlindex"
"golang.org/x/text/transform"
)
// Lookup returns the encoding with the specified label, and its canonical
// name. It returns nil and the empty string if label is not one of the
// standard encodings for HTML. Matching is case-insensitive and ignores
// leading and trailing whitespace. Encoders will use HTML escape sequences for
// runes that are not supported by the character set.
func Lookup(label string) (e encoding.Encoding, name string) {
e, err := htmlindex.Get(label)
if err != nil {
return nil, ""
}
name, _ = htmlindex.Name(e)
return &htmlEncoding{e}, name
}
type htmlEncoding struct{ encoding.Encoding }
func (h *htmlEncoding) NewEncoder() *encoding.Encoder {
// HTML requires a non-terminating legacy encoder. We use HTML escapes to
// substitute unsupported code points.
return encoding.HTMLEscapeUnsupported(h.Encoding.NewEncoder())
}
// DetermineEncoding determines the encoding of an HTML document by examining
// up to the first 1024 bytes of content and the declared Content-Type.
//
// See http://www.whatwg.org/specs/web-apps/current-work/multipage/parsing.html#determining-the-character-encoding
func DetermineEncoding(content []byte, contentType string) (e encoding.Encoding, name string, certain bool) {
if len(content) > 1024 {
content = content[:1024]
}
for _, b := range boms {
if bytes.HasPrefix(content, b.bom) {
e, name = Lookup(b.enc)
return e, name, true
}
}
if _, params, err := mime.ParseMediaType(contentType); err == nil {
if cs, ok := params["charset"]; ok {
if e, name = Lookup(cs); e != nil {
return e, name, true
}
}
}
if len(content) > 0 {
e, name = prescan(content)
if e != nil {
return e, name, false
}
}
// Try to detect UTF-8.
// First eliminate any partial rune at the end.
for i := len(content) - 1; i >= 0 && i > len(content)-4; i-- {
b := content[i]
if b < 0x80 {
break
}
if utf8.RuneStart(b) {
content = content[:i]
break
}
}
hasHighBit := false
for _, c := range content {
if c >= 0x80 {
hasHighBit = true
break
}
}
if hasHighBit && utf8.Valid(content) {
return encoding.Nop, "utf-8", false
}
// TODO: change default depending on user's locale?
return charmap.Windows1252, "windows-1252", false
}
// NewReader returns an io.Reader that converts the content of r to UTF-8.
// It calls DetermineEncoding to find out what r's encoding is.
func NewReader(r io.Reader, contentType string) (io.Reader, error) {
preview := make([]byte, 1024)
n, err := io.ReadFull(r, preview)
switch {
case err == io.ErrUnexpectedEOF:
preview = preview[:n]
r = bytes.NewReader(preview)
case err != nil:
return nil, err
default:
r = io.MultiReader(bytes.NewReader(preview), r)
}
if e, _, _ := DetermineEncoding(preview, contentType); e != encoding.Nop {
r = transform.NewReader(r, e.NewDecoder())
}
return r, nil
}
// NewReaderLabel returns a reader that converts from the specified charset to
// UTF-8. It uses Lookup to find the encoding that corresponds to label, and
// returns an error if Lookup returns nil. It is suitable for use as
// encoding/xml.Decoder's CharsetReader function.
func NewReaderLabel(label string, input io.Reader) (io.Reader, error) {
e, _ := Lookup(label)
if e == nil {
return nil, fmt.Errorf("unsupported charset: %q", label)
}
return transform.NewReader(input, e.NewDecoder()), nil
}
func prescan(content []byte) (e encoding.Encoding, name string) {
z := html.NewTokenizer(bytes.NewReader(content))
for {
switch z.Next() {
case html.ErrorToken:
return nil, ""
case html.StartTagToken, html.SelfClosingTagToken:
tagName, hasAttr := z.TagName()
if !bytes.Equal(tagName, []byte("meta")) {
continue
}
attrList := make(map[string]bool)
gotPragma := false
const (
dontKnow = iota
doNeedPragma
doNotNeedPragma
)
needPragma := dontKnow
name = ""
e = nil
for hasAttr {
var key, val []byte
key, val, hasAttr = z.TagAttr()
ks := string(key)
if attrList[ks] {
continue
}
attrList[ks] = true
for i, c := range val {
if 'A' <= c && c <= 'Z' {
val[i] = c + 0x20
}
}
switch ks {
case "http-equiv":
if bytes.Equal(val, []byte("content-type")) {
gotPragma = true
}
case "content":
if e == nil {
name = fromMetaElement(string(val))
if name != "" {
e, name = Lookup(name)
if e != nil {
needPragma = doNeedPragma
}
}
}
case "charset":
e, name = Lookup(string(val))
needPragma = doNotNeedPragma
}
}
if needPragma == dontKnow || needPragma == doNeedPragma && !gotPragma {
continue
}
if strings.HasPrefix(name, "utf-16") {
name = "utf-8"
e = encoding.Nop
}
if e != nil {
return e, name
}
}
}
}
func fromMetaElement(s string) string {
for s != "" {
csLoc := strings.Index(s, "charset")
if csLoc == -1 {
return ""
}
s = s[csLoc+len("charset"):]
s = strings.TrimLeft(s, " \t\n\f\r")
if !strings.HasPrefix(s, "=") {
continue
}
s = s[1:]
s = strings.TrimLeft(s, " \t\n\f\r")
if s == "" {
return ""
}
if q := s[0]; q == '"' || q == '\'' {
s = s[1:]
closeQuote := strings.IndexRune(s, rune(q))
if closeQuote == -1 {
return ""
}
return s[:closeQuote]
}
end := strings.IndexAny(s, "; \t\n\f\r")
if end == -1 {
end = len(s)
}
return s[:end]
}
return ""
}
var boms = []struct {
bom []byte
enc string
}{
{[]byte{0xfe, 0xff}, "utf-16be"},
{[]byte{0xff, 0xfe}, "utf-16le"},
{[]byte{0xef, 0xbb, 0xbf}, "utf-8"},
}

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// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package html
// Section 12.2.3.2 of the HTML5 specification says "The following elements
// have varying levels of special parsing rules".
// https://html.spec.whatwg.org/multipage/syntax.html#the-stack-of-open-elements
var isSpecialElementMap = map[string]bool{
"address": true,
"applet": true,
"area": true,
"article": true,
"aside": true,
"base": true,
"basefont": true,
"bgsound": true,
"blockquote": true,
"body": true,
"br": true,
"button": true,
"caption": true,
"center": true,
"col": true,
"colgroup": true,
"dd": true,
"details": true,
"dir": true,
"div": true,
"dl": true,
"dt": true,
"embed": true,
"fieldset": true,
"figcaption": true,
"figure": true,
"footer": true,
"form": true,
"frame": true,
"frameset": true,
"h1": true,
"h2": true,
"h3": true,
"h4": true,
"h5": true,
"h6": true,
"head": true,
"header": true,
"hgroup": true,
"hr": true,
"html": true,
"iframe": true,
"img": true,
"input": true,
"isindex": true, // The 'isindex' element has been removed, but keep it for backwards compatibility.
"keygen": true,
"li": true,
"link": true,
"listing": true,
"main": true,
"marquee": true,
"menu": true,
"meta": true,
"nav": true,
"noembed": true,
"noframes": true,
"noscript": true,
"object": true,
"ol": true,
"p": true,
"param": true,
"plaintext": true,
"pre": true,
"script": true,
"section": true,
"select": true,
"source": true,
"style": true,
"summary": true,
"table": true,
"tbody": true,
"td": true,
"template": true,
"textarea": true,
"tfoot": true,
"th": true,
"thead": true,
"title": true,
"tr": true,
"track": true,
"ul": true,
"wbr": true,
"xmp": true,
}
func isSpecialElement(element *Node) bool {
switch element.Namespace {
case "", "html":
return isSpecialElementMap[element.Data]
case "svg":
return element.Data == "foreignObject"
}
return false
}

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vendor/golang.org/x/net/html/doc.go generated vendored Normal file
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// Copyright 2010 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
/*
Package html implements an HTML5-compliant tokenizer and parser.
Tokenization is done by creating a Tokenizer for an io.Reader r. It is the
caller's responsibility to ensure that r provides UTF-8 encoded HTML.
z := html.NewTokenizer(r)
Given a Tokenizer z, the HTML is tokenized by repeatedly calling z.Next(),
which parses the next token and returns its type, or an error:
for {
tt := z.Next()
if tt == html.ErrorToken {
// ...
return ...
}
// Process the current token.
}
There are two APIs for retrieving the current token. The high-level API is to
call Token; the low-level API is to call Text or TagName / TagAttr. Both APIs
allow optionally calling Raw after Next but before Token, Text, TagName, or
TagAttr. In EBNF notation, the valid call sequence per token is:
Next {Raw} [ Token | Text | TagName {TagAttr} ]
Token returns an independent data structure that completely describes a token.
Entities (such as "&lt;") are unescaped, tag names and attribute keys are
lower-cased, and attributes are collected into a []Attribute. For example:
for {
if z.Next() == html.ErrorToken {
// Returning io.EOF indicates success.
return z.Err()
}
emitToken(z.Token())
}
The low-level API performs fewer allocations and copies, but the contents of
the []byte values returned by Text, TagName and TagAttr may change on the next
call to Next. For example, to extract an HTML page's anchor text:
depth := 0
for {
tt := z.Next()
switch tt {
case html.ErrorToken:
return z.Err()
case html.TextToken:
if depth > 0 {
// emitBytes should copy the []byte it receives,
// if it doesn't process it immediately.
emitBytes(z.Text())
}
case html.StartTagToken, html.EndTagToken:
tn, _ := z.TagName()
if len(tn) == 1 && tn[0] == 'a' {
if tt == html.StartTagToken {
depth++
} else {
depth--
}
}
}
}
Parsing is done by calling Parse with an io.Reader, which returns the root of
the parse tree (the document element) as a *Node. It is the caller's
responsibility to ensure that the Reader provides UTF-8 encoded HTML. For
example, to process each anchor node in depth-first order:
doc, err := html.Parse(r)
if err != nil {
// ...
}
var f func(*html.Node)
f = func(n *html.Node) {
if n.Type == html.ElementNode && n.Data == "a" {
// Do something with n...
}
for c := n.FirstChild; c != nil; c = c.NextSibling {
f(c)
}
}
f(doc)
The relevant specifications include:
https://html.spec.whatwg.org/multipage/syntax.html and
https://html.spec.whatwg.org/multipage/syntax.html#tokenization
*/
package html // import "golang.org/x/net/html"
// The tokenization algorithm implemented by this package is not a line-by-line
// transliteration of the relatively verbose state-machine in the WHATWG
// specification. A more direct approach is used instead, where the program
// counter implies the state, such as whether it is tokenizing a tag or a text
// node. Specification compliance is verified by checking expected and actual
// outputs over a test suite rather than aiming for algorithmic fidelity.
// TODO(nigeltao): Does a DOM API belong in this package or a separate one?
// TODO(nigeltao): How does parsing interact with a JavaScript engine?

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// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package html
import (
"strings"
)
// parseDoctype parses the data from a DoctypeToken into a name,
// public identifier, and system identifier. It returns a Node whose Type
// is DoctypeNode, whose Data is the name, and which has attributes
// named "system" and "public" for the two identifiers if they were present.
// quirks is whether the document should be parsed in "quirks mode".
func parseDoctype(s string) (n *Node, quirks bool) {
n = &Node{Type: DoctypeNode}
// Find the name.
space := strings.IndexAny(s, whitespace)
if space == -1 {
space = len(s)
}
n.Data = s[:space]
// The comparison to "html" is case-sensitive.
if n.Data != "html" {
quirks = true
}
n.Data = strings.ToLower(n.Data)
s = strings.TrimLeft(s[space:], whitespace)
if len(s) < 6 {
// It can't start with "PUBLIC" or "SYSTEM".
// Ignore the rest of the string.
return n, quirks || s != ""
}
key := strings.ToLower(s[:6])
s = s[6:]
for key == "public" || key == "system" {
s = strings.TrimLeft(s, whitespace)
if s == "" {
break
}
quote := s[0]
if quote != '"' && quote != '\'' {
break
}
s = s[1:]
q := strings.IndexRune(s, rune(quote))
var id string
if q == -1 {
id = s
s = ""
} else {
id = s[:q]
s = s[q+1:]
}
n.Attr = append(n.Attr, Attribute{Key: key, Val: id})
if key == "public" {
key = "system"
} else {
key = ""
}
}
if key != "" || s != "" {
quirks = true
} else if len(n.Attr) > 0 {
if n.Attr[0].Key == "public" {
public := strings.ToLower(n.Attr[0].Val)
switch public {
case "-//w3o//dtd w3 html strict 3.0//en//", "-/w3d/dtd html 4.0 transitional/en", "html":
quirks = true
default:
for _, q := range quirkyIDs {
if strings.HasPrefix(public, q) {
quirks = true
break
}
}
}
// The following two public IDs only cause quirks mode if there is no system ID.
if len(n.Attr) == 1 && (strings.HasPrefix(public, "-//w3c//dtd html 4.01 frameset//") ||
strings.HasPrefix(public, "-//w3c//dtd html 4.01 transitional//")) {
quirks = true
}
}
if lastAttr := n.Attr[len(n.Attr)-1]; lastAttr.Key == "system" &&
strings.ToLower(lastAttr.Val) == "http://www.ibm.com/data/dtd/v11/ibmxhtml1-transitional.dtd" {
quirks = true
}
}
return n, quirks
}
// quirkyIDs is a list of public doctype identifiers that cause a document
// to be interpreted in quirks mode. The identifiers should be in lower case.
var quirkyIDs = []string{
"+//silmaril//dtd html pro v0r11 19970101//",
"-//advasoft ltd//dtd html 3.0 aswedit + extensions//",
"-//as//dtd html 3.0 aswedit + extensions//",
"-//ietf//dtd html 2.0 level 1//",
"-//ietf//dtd html 2.0 level 2//",
"-//ietf//dtd html 2.0 strict level 1//",
"-//ietf//dtd html 2.0 strict level 2//",
"-//ietf//dtd html 2.0 strict//",
"-//ietf//dtd html 2.0//",
"-//ietf//dtd html 2.1e//",
"-//ietf//dtd html 3.0//",
"-//ietf//dtd html 3.2 final//",
"-//ietf//dtd html 3.2//",
"-//ietf//dtd html 3//",
"-//ietf//dtd html level 0//",
"-//ietf//dtd html level 1//",
"-//ietf//dtd html level 2//",
"-//ietf//dtd html level 3//",
"-//ietf//dtd html strict level 0//",
"-//ietf//dtd html strict level 1//",
"-//ietf//dtd html strict level 2//",
"-//ietf//dtd html strict level 3//",
"-//ietf//dtd html strict//",
"-//ietf//dtd html//",
"-//metrius//dtd metrius presentational//",
"-//microsoft//dtd internet explorer 2.0 html strict//",
"-//microsoft//dtd internet explorer 2.0 html//",
"-//microsoft//dtd internet explorer 2.0 tables//",
"-//microsoft//dtd internet explorer 3.0 html strict//",
"-//microsoft//dtd internet explorer 3.0 html//",
"-//microsoft//dtd internet explorer 3.0 tables//",
"-//netscape comm. corp.//dtd html//",
"-//netscape comm. corp.//dtd strict html//",
"-//o'reilly and associates//dtd html 2.0//",
"-//o'reilly and associates//dtd html extended 1.0//",
"-//o'reilly and associates//dtd html extended relaxed 1.0//",
"-//softquad software//dtd hotmetal pro 6.0::19990601::extensions to html 4.0//",
"-//softquad//dtd hotmetal pro 4.0::19971010::extensions to html 4.0//",
"-//spyglass//dtd html 2.0 extended//",
"-//sq//dtd html 2.0 hotmetal + extensions//",
"-//sun microsystems corp.//dtd hotjava html//",
"-//sun microsystems corp.//dtd hotjava strict html//",
"-//w3c//dtd html 3 1995-03-24//",
"-//w3c//dtd html 3.2 draft//",
"-//w3c//dtd html 3.2 final//",
"-//w3c//dtd html 3.2//",
"-//w3c//dtd html 3.2s draft//",
"-//w3c//dtd html 4.0 frameset//",
"-//w3c//dtd html 4.0 transitional//",
"-//w3c//dtd html experimental 19960712//",
"-//w3c//dtd html experimental 970421//",
"-//w3c//dtd w3 html//",
"-//w3o//dtd w3 html 3.0//",
"-//webtechs//dtd mozilla html 2.0//",
"-//webtechs//dtd mozilla html//",
}

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vendor/golang.org/x/net/html/escape.go generated vendored Normal file
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// Copyright 2010 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package html
import (
"bytes"
"strings"
"unicode/utf8"
)
// These replacements permit compatibility with old numeric entities that
// assumed Windows-1252 encoding.
// https://html.spec.whatwg.org/multipage/syntax.html#consume-a-character-reference
var replacementTable = [...]rune{
'\u20AC', // First entry is what 0x80 should be replaced with.
'\u0081',
'\u201A',
'\u0192',
'\u201E',
'\u2026',
'\u2020',
'\u2021',
'\u02C6',
'\u2030',
'\u0160',
'\u2039',
'\u0152',
'\u008D',
'\u017D',
'\u008F',
'\u0090',
'\u2018',
'\u2019',
'\u201C',
'\u201D',
'\u2022',
'\u2013',
'\u2014',
'\u02DC',
'\u2122',
'\u0161',
'\u203A',
'\u0153',
'\u009D',
'\u017E',
'\u0178', // Last entry is 0x9F.
// 0x00->'\uFFFD' is handled programmatically.
// 0x0D->'\u000D' is a no-op.
}
// unescapeEntity reads an entity like "&lt;" from b[src:] and writes the
// corresponding "<" to b[dst:], returning the incremented dst and src cursors.
// Precondition: b[src] == '&' && dst <= src.
// attribute should be true if parsing an attribute value.
func unescapeEntity(b []byte, dst, src int, attribute bool) (dst1, src1 int) {
// https://html.spec.whatwg.org/multipage/syntax.html#consume-a-character-reference
// i starts at 1 because we already know that s[0] == '&'.
i, s := 1, b[src:]
if len(s) <= 1 {
b[dst] = b[src]
return dst + 1, src + 1
}
if s[i] == '#' {
if len(s) <= 3 { // We need to have at least "&#.".
b[dst] = b[src]
return dst + 1, src + 1
}
i++
c := s[i]
hex := false
if c == 'x' || c == 'X' {
hex = true
i++
}
x := '\x00'
for i < len(s) {
c = s[i]
i++
if hex {
if '0' <= c && c <= '9' {
x = 16*x + rune(c) - '0'
continue
} else if 'a' <= c && c <= 'f' {
x = 16*x + rune(c) - 'a' + 10
continue
} else if 'A' <= c && c <= 'F' {
x = 16*x + rune(c) - 'A' + 10
continue
}
} else if '0' <= c && c <= '9' {
x = 10*x + rune(c) - '0'
continue
}
if c != ';' {
i--
}
break
}
if i <= 3 { // No characters matched.
b[dst] = b[src]
return dst + 1, src + 1
}
if 0x80 <= x && x <= 0x9F {
// Replace characters from Windows-1252 with UTF-8 equivalents.
x = replacementTable[x-0x80]
} else if x == 0 || (0xD800 <= x && x <= 0xDFFF) || x > 0x10FFFF {
// Replace invalid characters with the replacement character.
x = '\uFFFD'
}
return dst + utf8.EncodeRune(b[dst:], x), src + i
}
// Consume the maximum number of characters possible, with the
// consumed characters matching one of the named references.
for i < len(s) {
c := s[i]
i++
// Lower-cased characters are more common in entities, so we check for them first.
if 'a' <= c && c <= 'z' || 'A' <= c && c <= 'Z' || '0' <= c && c <= '9' {
continue
}
if c != ';' {
i--
}
break
}
entityName := string(s[1:i])
if entityName == "" {
// No-op.
} else if attribute && entityName[len(entityName)-1] != ';' && len(s) > i && s[i] == '=' {
// No-op.
} else if x := entity[entityName]; x != 0 {
return dst + utf8.EncodeRune(b[dst:], x), src + i
} else if x := entity2[entityName]; x[0] != 0 {
dst1 := dst + utf8.EncodeRune(b[dst:], x[0])
return dst1 + utf8.EncodeRune(b[dst1:], x[1]), src + i
} else if !attribute {
maxLen := len(entityName) - 1
if maxLen > longestEntityWithoutSemicolon {
maxLen = longestEntityWithoutSemicolon
}
for j := maxLen; j > 1; j-- {
if x := entity[entityName[:j]]; x != 0 {
return dst + utf8.EncodeRune(b[dst:], x), src + j + 1
}
}
}
dst1, src1 = dst+i, src+i
copy(b[dst:dst1], b[src:src1])
return dst1, src1
}
// unescape unescapes b's entities in-place, so that "a&lt;b" becomes "a<b".
// attribute should be true if parsing an attribute value.
func unescape(b []byte, attribute bool) []byte {
for i, c := range b {
if c == '&' {
dst, src := unescapeEntity(b, i, i, attribute)
for src < len(b) {
c := b[src]
if c == '&' {
dst, src = unescapeEntity(b, dst, src, attribute)
} else {
b[dst] = c
dst, src = dst+1, src+1
}
}
return b[0:dst]
}
}
return b
}
// lower lower-cases the A-Z bytes in b in-place, so that "aBc" becomes "abc".
func lower(b []byte) []byte {
for i, c := range b {
if 'A' <= c && c <= 'Z' {
b[i] = c + 'a' - 'A'
}
}
return b
}
const escapedChars = "&'<>\"\r"
func escape(w writer, s string) error {
i := strings.IndexAny(s, escapedChars)
for i != -1 {
if _, err := w.WriteString(s[:i]); err != nil {
return err
}
var esc string
switch s[i] {
case '&':
esc = "&amp;"
case '\'':
// "&#39;" is shorter than "&apos;" and apos was not in HTML until HTML5.
esc = "&#39;"
case '<':
esc = "&lt;"
case '>':
esc = "&gt;"
case '"':
// "&#34;" is shorter than "&quot;".
esc = "&#34;"
case '\r':
esc = "&#13;"
default:
panic("unrecognized escape character")
}
s = s[i+1:]
if _, err := w.WriteString(esc); err != nil {
return err
}
i = strings.IndexAny(s, escapedChars)
}
_, err := w.WriteString(s)
return err
}
// EscapeString escapes special characters like "<" to become "&lt;". It
// escapes only five such characters: <, >, &, ' and ".
// UnescapeString(EscapeString(s)) == s always holds, but the converse isn't
// always true.
func EscapeString(s string) string {
if strings.IndexAny(s, escapedChars) == -1 {
return s
}
var buf bytes.Buffer
escape(&buf, s)
return buf.String()
}
// UnescapeString unescapes entities like "&lt;" to become "<". It unescapes a
// larger range of entities than EscapeString escapes. For example, "&aacute;"
// unescapes to "á", as does "&#225;" and "&xE1;".
// UnescapeString(EscapeString(s)) == s always holds, but the converse isn't
// always true.
func UnescapeString(s string) string {
for _, c := range s {
if c == '&' {
return string(unescape([]byte(s), false))
}
}
return s
}

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// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package html
import (
"strings"
)
func adjustAttributeNames(aa []Attribute, nameMap map[string]string) {
for i := range aa {
if newName, ok := nameMap[aa[i].Key]; ok {
aa[i].Key = newName
}
}
}
func adjustForeignAttributes(aa []Attribute) {
for i, a := range aa {
if a.Key == "" || a.Key[0] != 'x' {
continue
}
switch a.Key {
case "xlink:actuate", "xlink:arcrole", "xlink:href", "xlink:role", "xlink:show",
"xlink:title", "xlink:type", "xml:base", "xml:lang", "xml:space", "xmlns:xlink":
j := strings.Index(a.Key, ":")
aa[i].Namespace = a.Key[:j]
aa[i].Key = a.Key[j+1:]
}
}
}
func htmlIntegrationPoint(n *Node) bool {
if n.Type != ElementNode {
return false
}
switch n.Namespace {
case "math":
if n.Data == "annotation-xml" {
for _, a := range n.Attr {
if a.Key == "encoding" {
val := strings.ToLower(a.Val)
if val == "text/html" || val == "application/xhtml+xml" {
return true
}
}
}
}
case "svg":
switch n.Data {
case "desc", "foreignObject", "title":
return true
}
}
return false
}
func mathMLTextIntegrationPoint(n *Node) bool {
if n.Namespace != "math" {
return false
}
switch n.Data {
case "mi", "mo", "mn", "ms", "mtext":
return true
}
return false
}
// Section 12.2.5.5.
var breakout = map[string]bool{
"b": true,
"big": true,
"blockquote": true,
"body": true,
"br": true,
"center": true,
"code": true,
"dd": true,
"div": true,
"dl": true,
"dt": true,
"em": true,
"embed": true,
"h1": true,
"h2": true,
"h3": true,
"h4": true,
"h5": true,
"h6": true,
"head": true,
"hr": true,
"i": true,
"img": true,
"li": true,
"listing": true,
"menu": true,
"meta": true,
"nobr": true,
"ol": true,
"p": true,
"pre": true,
"ruby": true,
"s": true,
"small": true,
"span": true,
"strong": true,
"strike": true,
"sub": true,
"sup": true,
"table": true,
"tt": true,
"u": true,
"ul": true,
"var": true,
}
// Section 12.2.5.5.
var svgTagNameAdjustments = map[string]string{
"altglyph": "altGlyph",
"altglyphdef": "altGlyphDef",
"altglyphitem": "altGlyphItem",
"animatecolor": "animateColor",
"animatemotion": "animateMotion",
"animatetransform": "animateTransform",
"clippath": "clipPath",
"feblend": "feBlend",
"fecolormatrix": "feColorMatrix",
"fecomponenttransfer": "feComponentTransfer",
"fecomposite": "feComposite",
"feconvolvematrix": "feConvolveMatrix",
"fediffuselighting": "feDiffuseLighting",
"fedisplacementmap": "feDisplacementMap",
"fedistantlight": "feDistantLight",
"feflood": "feFlood",
"fefunca": "feFuncA",
"fefuncb": "feFuncB",
"fefuncg": "feFuncG",
"fefuncr": "feFuncR",
"fegaussianblur": "feGaussianBlur",
"feimage": "feImage",
"femerge": "feMerge",
"femergenode": "feMergeNode",
"femorphology": "feMorphology",
"feoffset": "feOffset",
"fepointlight": "fePointLight",
"fespecularlighting": "feSpecularLighting",
"fespotlight": "feSpotLight",
"fetile": "feTile",
"feturbulence": "feTurbulence",
"foreignobject": "foreignObject",
"glyphref": "glyphRef",
"lineargradient": "linearGradient",
"radialgradient": "radialGradient",
"textpath": "textPath",
}
// Section 12.2.5.1
var mathMLAttributeAdjustments = map[string]string{
"definitionurl": "definitionURL",
}
var svgAttributeAdjustments = map[string]string{
"attributename": "attributeName",
"attributetype": "attributeType",
"basefrequency": "baseFrequency",
"baseprofile": "baseProfile",
"calcmode": "calcMode",
"clippathunits": "clipPathUnits",
"contentscripttype": "contentScriptType",
"contentstyletype": "contentStyleType",
"diffuseconstant": "diffuseConstant",
"edgemode": "edgeMode",
"externalresourcesrequired": "externalResourcesRequired",
"filterres": "filterRes",
"filterunits": "filterUnits",
"glyphref": "glyphRef",
"gradienttransform": "gradientTransform",
"gradientunits": "gradientUnits",
"kernelmatrix": "kernelMatrix",
"kernelunitlength": "kernelUnitLength",
"keypoints": "keyPoints",
"keysplines": "keySplines",
"keytimes": "keyTimes",
"lengthadjust": "lengthAdjust",
"limitingconeangle": "limitingConeAngle",
"markerheight": "markerHeight",
"markerunits": "markerUnits",
"markerwidth": "markerWidth",
"maskcontentunits": "maskContentUnits",
"maskunits": "maskUnits",
"numoctaves": "numOctaves",
"pathlength": "pathLength",
"patterncontentunits": "patternContentUnits",
"patterntransform": "patternTransform",
"patternunits": "patternUnits",
"pointsatx": "pointsAtX",
"pointsaty": "pointsAtY",
"pointsatz": "pointsAtZ",
"preservealpha": "preserveAlpha",
"preserveaspectratio": "preserveAspectRatio",
"primitiveunits": "primitiveUnits",
"refx": "refX",
"refy": "refY",
"repeatcount": "repeatCount",
"repeatdur": "repeatDur",
"requiredextensions": "requiredExtensions",
"requiredfeatures": "requiredFeatures",
"specularconstant": "specularConstant",
"specularexponent": "specularExponent",
"spreadmethod": "spreadMethod",
"startoffset": "startOffset",
"stddeviation": "stdDeviation",
"stitchtiles": "stitchTiles",
"surfacescale": "surfaceScale",
"systemlanguage": "systemLanguage",
"tablevalues": "tableValues",
"targetx": "targetX",
"targety": "targetY",
"textlength": "textLength",
"viewbox": "viewBox",
"viewtarget": "viewTarget",
"xchannelselector": "xChannelSelector",
"ychannelselector": "yChannelSelector",
"zoomandpan": "zoomAndPan",
}

193
vendor/golang.org/x/net/html/node.go generated vendored Normal file
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@@ -0,0 +1,193 @@
// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package html
import (
"golang.org/x/net/html/atom"
)
// A NodeType is the type of a Node.
type NodeType uint32
const (
ErrorNode NodeType = iota
TextNode
DocumentNode
ElementNode
CommentNode
DoctypeNode
scopeMarkerNode
)
// Section 12.2.3.3 says "scope markers are inserted when entering applet
// elements, buttons, object elements, marquees, table cells, and table
// captions, and are used to prevent formatting from 'leaking'".
var scopeMarker = Node{Type: scopeMarkerNode}
// A Node consists of a NodeType and some Data (tag name for element nodes,
// content for text) and are part of a tree of Nodes. Element nodes may also
// have a Namespace and contain a slice of Attributes. Data is unescaped, so
// that it looks like "a<b" rather than "a&lt;b". For element nodes, DataAtom
// is the atom for Data, or zero if Data is not a known tag name.
//
// An empty Namespace implies a "http://www.w3.org/1999/xhtml" namespace.
// Similarly, "math" is short for "http://www.w3.org/1998/Math/MathML", and
// "svg" is short for "http://www.w3.org/2000/svg".
type Node struct {
Parent, FirstChild, LastChild, PrevSibling, NextSibling *Node
Type NodeType
DataAtom atom.Atom
Data string
Namespace string
Attr []Attribute
}
// InsertBefore inserts newChild as a child of n, immediately before oldChild
// in the sequence of n's children. oldChild may be nil, in which case newChild
// is appended to the end of n's children.
//
// It will panic if newChild already has a parent or siblings.
func (n *Node) InsertBefore(newChild, oldChild *Node) {
if newChild.Parent != nil || newChild.PrevSibling != nil || newChild.NextSibling != nil {
panic("html: InsertBefore called for an attached child Node")
}
var prev, next *Node
if oldChild != nil {
prev, next = oldChild.PrevSibling, oldChild
} else {
prev = n.LastChild
}
if prev != nil {
prev.NextSibling = newChild
} else {
n.FirstChild = newChild
}
if next != nil {
next.PrevSibling = newChild
} else {
n.LastChild = newChild
}
newChild.Parent = n
newChild.PrevSibling = prev
newChild.NextSibling = next
}
// AppendChild adds a node c as a child of n.
//
// It will panic if c already has a parent or siblings.
func (n *Node) AppendChild(c *Node) {
if c.Parent != nil || c.PrevSibling != nil || c.NextSibling != nil {
panic("html: AppendChild called for an attached child Node")
}
last := n.LastChild
if last != nil {
last.NextSibling = c
} else {
n.FirstChild = c
}
n.LastChild = c
c.Parent = n
c.PrevSibling = last
}
// RemoveChild removes a node c that is a child of n. Afterwards, c will have
// no parent and no siblings.
//
// It will panic if c's parent is not n.
func (n *Node) RemoveChild(c *Node) {
if c.Parent != n {
panic("html: RemoveChild called for a non-child Node")
}
if n.FirstChild == c {
n.FirstChild = c.NextSibling
}
if c.NextSibling != nil {
c.NextSibling.PrevSibling = c.PrevSibling
}
if n.LastChild == c {
n.LastChild = c.PrevSibling
}
if c.PrevSibling != nil {
c.PrevSibling.NextSibling = c.NextSibling
}
c.Parent = nil
c.PrevSibling = nil
c.NextSibling = nil
}
// reparentChildren reparents all of src's child nodes to dst.
func reparentChildren(dst, src *Node) {
for {
child := src.FirstChild
if child == nil {
break
}
src.RemoveChild(child)
dst.AppendChild(child)
}
}
// clone returns a new node with the same type, data and attributes.
// The clone has no parent, no siblings and no children.
func (n *Node) clone() *Node {
m := &Node{
Type: n.Type,
DataAtom: n.DataAtom,
Data: n.Data,
Attr: make([]Attribute, len(n.Attr)),
}
copy(m.Attr, n.Attr)
return m
}
// nodeStack is a stack of nodes.
type nodeStack []*Node
// pop pops the stack. It will panic if s is empty.
func (s *nodeStack) pop() *Node {
i := len(*s)
n := (*s)[i-1]
*s = (*s)[:i-1]
return n
}
// top returns the most recently pushed node, or nil if s is empty.
func (s *nodeStack) top() *Node {
if i := len(*s); i > 0 {
return (*s)[i-1]
}
return nil
}
// index returns the index of the top-most occurrence of n in the stack, or -1
// if n is not present.
func (s *nodeStack) index(n *Node) int {
for i := len(*s) - 1; i >= 0; i-- {
if (*s)[i] == n {
return i
}
}
return -1
}
// insert inserts a node at the given index.
func (s *nodeStack) insert(i int, n *Node) {
(*s) = append(*s, nil)
copy((*s)[i+1:], (*s)[i:])
(*s)[i] = n
}
// remove removes a node from the stack. It is a no-op if n is not present.
func (s *nodeStack) remove(n *Node) {
i := s.index(n)
if i == -1 {
return
}
copy((*s)[i:], (*s)[i+1:])
j := len(*s) - 1
(*s)[j] = nil
*s = (*s)[:j]
}

2094
vendor/golang.org/x/net/html/parse.go generated vendored Normal file
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271
vendor/golang.org/x/net/html/render.go generated vendored Normal file
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@@ -0,0 +1,271 @@
// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package html
import (
"bufio"
"errors"
"fmt"
"io"
"strings"
)
type writer interface {
io.Writer
io.ByteWriter
WriteString(string) (int, error)
}
// Render renders the parse tree n to the given writer.
//
// Rendering is done on a 'best effort' basis: calling Parse on the output of
// Render will always result in something similar to the original tree, but it
// is not necessarily an exact clone unless the original tree was 'well-formed'.
// 'Well-formed' is not easily specified; the HTML5 specification is
// complicated.
//
// Calling Parse on arbitrary input typically results in a 'well-formed' parse
// tree. However, it is possible for Parse to yield a 'badly-formed' parse tree.
// For example, in a 'well-formed' parse tree, no <a> element is a child of
// another <a> element: parsing "<a><a>" results in two sibling elements.
// Similarly, in a 'well-formed' parse tree, no <a> element is a child of a
// <table> element: parsing "<p><table><a>" results in a <p> with two sibling
// children; the <a> is reparented to the <table>'s parent. However, calling
// Parse on "<a><table><a>" does not return an error, but the result has an <a>
// element with an <a> child, and is therefore not 'well-formed'.
//
// Programmatically constructed trees are typically also 'well-formed', but it
// is possible to construct a tree that looks innocuous but, when rendered and
// re-parsed, results in a different tree. A simple example is that a solitary
// text node would become a tree containing <html>, <head> and <body> elements.
// Another example is that the programmatic equivalent of "a<head>b</head>c"
// becomes "<html><head><head/><body>abc</body></html>".
func Render(w io.Writer, n *Node) error {
if x, ok := w.(writer); ok {
return render(x, n)
}
buf := bufio.NewWriter(w)
if err := render(buf, n); err != nil {
return err
}
return buf.Flush()
}
// plaintextAbort is returned from render1 when a <plaintext> element
// has been rendered. No more end tags should be rendered after that.
var plaintextAbort = errors.New("html: internal error (plaintext abort)")
func render(w writer, n *Node) error {
err := render1(w, n)
if err == plaintextAbort {
err = nil
}
return err
}
func render1(w writer, n *Node) error {
// Render non-element nodes; these are the easy cases.
switch n.Type {
case ErrorNode:
return errors.New("html: cannot render an ErrorNode node")
case TextNode:
return escape(w, n.Data)
case DocumentNode:
for c := n.FirstChild; c != nil; c = c.NextSibling {
if err := render1(w, c); err != nil {
return err
}
}
return nil
case ElementNode:
// No-op.
case CommentNode:
if _, err := w.WriteString("<!--"); err != nil {
return err
}
if _, err := w.WriteString(n.Data); err != nil {
return err
}
if _, err := w.WriteString("-->"); err != nil {
return err
}
return nil
case DoctypeNode:
if _, err := w.WriteString("<!DOCTYPE "); err != nil {
return err
}
if _, err := w.WriteString(n.Data); err != nil {
return err
}
if n.Attr != nil {
var p, s string
for _, a := range n.Attr {
switch a.Key {
case "public":
p = a.Val
case "system":
s = a.Val
}
}
if p != "" {
if _, err := w.WriteString(" PUBLIC "); err != nil {
return err
}
if err := writeQuoted(w, p); err != nil {
return err
}
if s != "" {
if err := w.WriteByte(' '); err != nil {
return err
}
if err := writeQuoted(w, s); err != nil {
return err
}
}
} else if s != "" {
if _, err := w.WriteString(" SYSTEM "); err != nil {
return err
}
if err := writeQuoted(w, s); err != nil {
return err
}
}
}
return w.WriteByte('>')
default:
return errors.New("html: unknown node type")
}
// Render the <xxx> opening tag.
if err := w.WriteByte('<'); err != nil {
return err
}
if _, err := w.WriteString(n.Data); err != nil {
return err
}
for _, a := range n.Attr {
if err := w.WriteByte(' '); err != nil {
return err
}
if a.Namespace != "" {
if _, err := w.WriteString(a.Namespace); err != nil {
return err
}
if err := w.WriteByte(':'); err != nil {
return err
}
}
if _, err := w.WriteString(a.Key); err != nil {
return err
}
if _, err := w.WriteString(`="`); err != nil {
return err
}
if err := escape(w, a.Val); err != nil {
return err
}
if err := w.WriteByte('"'); err != nil {
return err
}
}
if voidElements[n.Data] {
if n.FirstChild != nil {
return fmt.Errorf("html: void element <%s> has child nodes", n.Data)
}
_, err := w.WriteString("/>")
return err
}
if err := w.WriteByte('>'); err != nil {
return err
}
// Add initial newline where there is danger of a newline beging ignored.
if c := n.FirstChild; c != nil && c.Type == TextNode && strings.HasPrefix(c.Data, "\n") {
switch n.Data {
case "pre", "listing", "textarea":
if err := w.WriteByte('\n'); err != nil {
return err
}
}
}
// Render any child nodes.
switch n.Data {
case "iframe", "noembed", "noframes", "noscript", "plaintext", "script", "style", "xmp":
for c := n.FirstChild; c != nil; c = c.NextSibling {
if c.Type == TextNode {
if _, err := w.WriteString(c.Data); err != nil {
return err
}
} else {
if err := render1(w, c); err != nil {
return err
}
}
}
if n.Data == "plaintext" {
// Don't render anything else. <plaintext> must be the
// last element in the file, with no closing tag.
return plaintextAbort
}
default:
for c := n.FirstChild; c != nil; c = c.NextSibling {
if err := render1(w, c); err != nil {
return err
}
}
}
// Render the </xxx> closing tag.
if _, err := w.WriteString("</"); err != nil {
return err
}
if _, err := w.WriteString(n.Data); err != nil {
return err
}
return w.WriteByte('>')
}
// writeQuoted writes s to w surrounded by quotes. Normally it will use double
// quotes, but if s contains a double quote, it will use single quotes.
// It is used for writing the identifiers in a doctype declaration.
// In valid HTML, they can't contain both types of quotes.
func writeQuoted(w writer, s string) error {
var q byte = '"'
if strings.Contains(s, `"`) {
q = '\''
}
if err := w.WriteByte(q); err != nil {
return err
}
if _, err := w.WriteString(s); err != nil {
return err
}
if err := w.WriteByte(q); err != nil {
return err
}
return nil
}
// Section 12.1.2, "Elements", gives this list of void elements. Void elements
// are those that can't have any contents.
var voidElements = map[string]bool{
"area": true,
"base": true,
"br": true,
"col": true,
"command": true,
"embed": true,
"hr": true,
"img": true,
"input": true,
"keygen": true,
"link": true,
"meta": true,
"param": true,
"source": true,
"track": true,
"wbr": true,
}

1219
vendor/golang.org/x/net/html/token.go generated vendored Normal file
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6
vendor/golang.org/x/net/internal/iana/const.go generated vendored
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@@ -4,7 +4,7 @@
// Package iana provides protocol number resources managed by the Internet Assigned Numbers Authority (IANA).
package iana // import "golang.org/x/net/internal/iana"
// Differentiated Services Field Codepoints (DSCP), Updated: 2013-06-25
// Differentiated Services Field Codepoints (DSCP), Updated: 2017-05-12
const (
DiffServCS0 = 0x0 // CS0
DiffServCS1 = 0x20 // CS1
@@ -26,7 +26,7 @@ const (
DiffServAF41 = 0x88 // AF41
DiffServAF42 = 0x90 // AF42
DiffServAF43 = 0x98 // AF43
DiffServEFPHB = 0xb8 // EF PHB
DiffServEF = 0xb8 // EF
DiffServVOICEADMIT = 0xb0 // VOICE-ADMIT
)
@@ -38,7 +38,7 @@ const (
CongestionExperienced = 0x3 // CE (Congestion Experienced)
)
// Protocol Numbers, Updated: 2015-10-06
// Protocol Numbers, Updated: 2016-06-22
const (
ProtocolIP = 0 // IPv4 encapsulation, pseudo protocol number
ProtocolHOPOPT = 0 // IPv6 Hop-by-Hop Option

41
vendor/golang.org/x/net/internal/netreflect/socket.go generated vendored
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@@ -1,41 +0,0 @@
// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !go1.9
// Package netreflect implements run-time reflection for the
// facilities of net package.
//
// This package works only for Go 1.8 or below.
package netreflect
import (
"errors"
"net"
)
var (
errInvalidType = errors.New("invalid type")
errOpNoSupport = errors.New("operation not supported")
)
// SocketOf returns the socket descriptor of c.
func SocketOf(c net.Conn) (uintptr, error) {
switch c.(type) {
case *net.TCPConn, *net.UDPConn, *net.IPConn, *net.UnixConn:
return socketOf(c)
default:
return 0, errInvalidType
}
}
// PacketSocketOf returns the socket descriptor of c.
func PacketSocketOf(c net.PacketConn) (uintptr, error) {
switch c.(type) {
case *net.UDPConn, *net.IPConn, *net.UnixConn:
return socketOf(c.(net.Conn))
default:
return 0, errInvalidType
}
}

37
vendor/golang.org/x/net/internal/netreflect/socket_19.go generated vendored
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@@ -1,37 +0,0 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build go1.9
package netreflect
import (
"errors"
"net"
)
var (
errInvalidType = errors.New("invalid type")
errOpNoSupport = errors.New("operation not supported")
)
// SocketOf returns the socket descriptor of c.
func SocketOf(c net.Conn) (uintptr, error) {
switch c.(type) {
case *net.TCPConn, *net.UDPConn, *net.IPConn, *net.UnixConn:
return 0, errOpNoSupport
default:
return 0, errInvalidType
}
}
// PacketSocketOf returns the socket descriptor of c.
func PacketSocketOf(c net.PacketConn) (uintptr, error) {
switch c.(type) {
case *net.UDPConn, *net.IPConn, *net.UnixConn:
return 0, errOpNoSupport
default:
return 0, errInvalidType
}
}

31
vendor/golang.org/x/net/internal/netreflect/socket_posix.go generated vendored
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@@ -1,31 +0,0 @@
// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !go1.9
// +build darwin dragonfly freebsd linux netbsd openbsd solaris windows
package netreflect
import (
"net"
"reflect"
"runtime"
)
func socketOf(c net.Conn) (uintptr, error) {
v := reflect.ValueOf(c)
switch e := v.Elem(); e.Kind() {
case reflect.Struct:
fd := e.FieldByName("conn").FieldByName("fd")
switch e := fd.Elem(); e.Kind() {
case reflect.Struct:
sysfd := e.FieldByName("sysfd")
if runtime.GOOS == "windows" {
return uintptr(sysfd.Uint()), nil
}
return uintptr(sysfd.Int()), nil
}
}
return 0, errInvalidType
}

12
vendor/golang.org/x/net/internal/netreflect/socket_stub.go generated vendored
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@@ -1,12 +0,0 @@
// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !go1.9
// +build !darwin,!dragonfly,!freebsd,!linux,!netbsd,!openbsd,!solaris,!windows
package netreflect
import "net"
func socketOf(c net.Conn) (uintptr, error) { return 0, errOpNoSupport }

27
vendor/golang.org/x/net/internal/socket/LICENSE generated vendored Normal file
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@@ -0,0 +1,27 @@
Copyright (c) 2009 The Go Authors. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the
distribution.
* Neither the name of Google Inc. nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

11
vendor/golang.org/x/net/internal/socket/cmsghdr.go generated vendored Normal file
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@@ -0,0 +1,11 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build darwin dragonfly freebsd linux netbsd openbsd solaris
package socket
func (h *cmsghdr) len() int { return int(h.Len) }
func (h *cmsghdr) lvl() int { return int(h.Level) }
func (h *cmsghdr) typ() int { return int(h.Type) }

13
vendor/golang.org/x/net/internal/socket/cmsghdr_bsd.go generated vendored Normal file
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@@ -0,0 +1,13 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build darwin dragonfly freebsd netbsd openbsd
package socket
func (h *cmsghdr) set(l, lvl, typ int) {
h.Len = uint32(l)
h.Level = int32(lvl)
h.Type = int32(typ)
}

14
vendor/golang.org/x/net/internal/socket/cmsghdr_linux_32bit.go generated vendored Normal file
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@@ -0,0 +1,14 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build arm mips mipsle 386
// +build linux
package socket
func (h *cmsghdr) set(l, lvl, typ int) {
h.Len = uint32(l)
h.Level = int32(lvl)
h.Type = int32(typ)
}

14
vendor/golang.org/x/net/internal/socket/cmsghdr_linux_64bit.go generated vendored Normal file
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@@ -0,0 +1,14 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build arm64 amd64 ppc64 ppc64le mips64 mips64le s390x
// +build linux
package socket
func (h *cmsghdr) set(l, lvl, typ int) {
h.Len = uint64(l)
h.Level = int32(lvl)
h.Type = int32(typ)
}

14
vendor/golang.org/x/net/internal/socket/cmsghdr_solaris_64bit.go generated vendored Normal file
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@@ -0,0 +1,14 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build amd64
// +build solaris
package socket
func (h *cmsghdr) set(l, lvl, typ int) {
h.Len = uint32(l)
h.Level = int32(lvl)
h.Type = int32(typ)
}

17
vendor/golang.org/x/net/internal/socket/cmsghdr_stub.go generated vendored Normal file
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@@ -0,0 +1,17 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !darwin,!dragonfly,!freebsd,!linux,!netbsd,!openbsd,!solaris
package socket
type cmsghdr struct{}
const sizeofCmsghdr = 0
func (h *cmsghdr) len() int { return 0 }
func (h *cmsghdr) lvl() int { return 0 }
func (h *cmsghdr) typ() int { return 0 }
func (h *cmsghdr) set(l, lvl, typ int) {}

44
vendor/golang.org/x/net/internal/socket/defs_darwin.go generated vendored Normal file
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@@ -0,0 +1,44 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build ignore
// +godefs map struct_in_addr [4]byte /* in_addr */
// +godefs map struct_in6_addr [16]byte /* in6_addr */
package socket
/*
#include <sys/socket.h>
#include <netinet/in.h>
*/
import "C"
const (
sysAF_UNSPEC = C.AF_UNSPEC
sysAF_INET = C.AF_INET
sysAF_INET6 = C.AF_INET6
sysSOCK_RAW = C.SOCK_RAW
)
type iovec C.struct_iovec
type msghdr C.struct_msghdr
type cmsghdr C.struct_cmsghdr
type sockaddrInet C.struct_sockaddr_in
type sockaddrInet6 C.struct_sockaddr_in6
const (
sizeofIovec = C.sizeof_struct_iovec
sizeofMsghdr = C.sizeof_struct_msghdr
sizeofCmsghdr = C.sizeof_struct_cmsghdr
sizeofSockaddrInet = C.sizeof_struct_sockaddr_in
sizeofSockaddrInet6 = C.sizeof_struct_sockaddr_in6
)

44
vendor/golang.org/x/net/internal/socket/defs_dragonfly.go generated vendored Normal file
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@@ -0,0 +1,44 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build ignore
// +godefs map struct_in_addr [4]byte /* in_addr */
// +godefs map struct_in6_addr [16]byte /* in6_addr */
package socket
/*
#include <sys/socket.h>
#include <netinet/in.h>
*/
import "C"
const (
sysAF_UNSPEC = C.AF_UNSPEC
sysAF_INET = C.AF_INET
sysAF_INET6 = C.AF_INET6
sysSOCK_RAW = C.SOCK_RAW
)
type iovec C.struct_iovec
type msghdr C.struct_msghdr
type cmsghdr C.struct_cmsghdr
type sockaddrInet C.struct_sockaddr_in
type sockaddrInet6 C.struct_sockaddr_in6
const (
sizeofIovec = C.sizeof_struct_iovec
sizeofMsghdr = C.sizeof_struct_msghdr
sizeofCmsghdr = C.sizeof_struct_cmsghdr
sizeofSockaddrInet = C.sizeof_struct_sockaddr_in
sizeofSockaddrInet6 = C.sizeof_struct_sockaddr_in6
)

44
vendor/golang.org/x/net/internal/socket/defs_freebsd.go generated vendored Normal file
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@@ -0,0 +1,44 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build ignore
// +godefs map struct_in_addr [4]byte /* in_addr */
// +godefs map struct_in6_addr [16]byte /* in6_addr */
package socket
/*
#include <sys/socket.h>
#include <netinet/in.h>
*/
import "C"
const (
sysAF_UNSPEC = C.AF_UNSPEC
sysAF_INET = C.AF_INET
sysAF_INET6 = C.AF_INET6
sysSOCK_RAW = C.SOCK_RAW
)
type iovec C.struct_iovec
type msghdr C.struct_msghdr
type cmsghdr C.struct_cmsghdr
type sockaddrInet C.struct_sockaddr_in
type sockaddrInet6 C.struct_sockaddr_in6
const (
sizeofIovec = C.sizeof_struct_iovec
sizeofMsghdr = C.sizeof_struct_msghdr
sizeofCmsghdr = C.sizeof_struct_cmsghdr
sizeofSockaddrInet = C.sizeof_struct_sockaddr_in
sizeofSockaddrInet6 = C.sizeof_struct_sockaddr_in6
)

49
vendor/golang.org/x/net/internal/socket/defs_linux.go generated vendored Normal file
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@@ -0,0 +1,49 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build ignore
// +godefs map struct_in_addr [4]byte /* in_addr */
// +godefs map struct_in6_addr [16]byte /* in6_addr */
package socket
/*
#include <linux/in.h>
#include <linux/in6.h>
#define _GNU_SOURCE
#include <sys/socket.h>
*/
import "C"
const (
sysAF_UNSPEC = C.AF_UNSPEC
sysAF_INET = C.AF_INET
sysAF_INET6 = C.AF_INET6
sysSOCK_RAW = C.SOCK_RAW
)
type iovec C.struct_iovec
type msghdr C.struct_msghdr
type mmsghdr C.struct_mmsghdr
type cmsghdr C.struct_cmsghdr
type sockaddrInet C.struct_sockaddr_in
type sockaddrInet6 C.struct_sockaddr_in6
const (
sizeofIovec = C.sizeof_struct_iovec
sizeofMsghdr = C.sizeof_struct_msghdr
sizeofMmsghdr = C.sizeof_struct_mmsghdr
sizeofCmsghdr = C.sizeof_struct_cmsghdr
sizeofSockaddrInet = C.sizeof_struct_sockaddr_in
sizeofSockaddrInet6 = C.sizeof_struct_sockaddr_in6
)

47
vendor/golang.org/x/net/internal/socket/defs_netbsd.go generated vendored Normal file
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@@ -0,0 +1,47 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build ignore
// +godefs map struct_in_addr [4]byte /* in_addr */
// +godefs map struct_in6_addr [16]byte /* in6_addr */
package socket
/*
#include <sys/socket.h>
#include <netinet/in.h>
*/
import "C"
const (
sysAF_UNSPEC = C.AF_UNSPEC
sysAF_INET = C.AF_INET
sysAF_INET6 = C.AF_INET6
sysSOCK_RAW = C.SOCK_RAW
)
type iovec C.struct_iovec
type msghdr C.struct_msghdr
type mmsghdr C.struct_mmsghdr
type cmsghdr C.struct_cmsghdr
type sockaddrInet C.struct_sockaddr_in
type sockaddrInet6 C.struct_sockaddr_in6
const (
sizeofIovec = C.sizeof_struct_iovec
sizeofMsghdr = C.sizeof_struct_msghdr
sizeofMmsghdr = C.sizeof_struct_mmsghdr
sizeofCmsghdr = C.sizeof_struct_cmsghdr
sizeofSockaddrInet = C.sizeof_struct_sockaddr_in
sizeofSockaddrInet6 = C.sizeof_struct_sockaddr_in6
)

44
vendor/golang.org/x/net/internal/socket/defs_openbsd.go generated vendored Normal file
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@@ -0,0 +1,44 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build ignore
// +godefs map struct_in_addr [4]byte /* in_addr */
// +godefs map struct_in6_addr [16]byte /* in6_addr */
package socket
/*
#include <sys/socket.h>
#include <netinet/in.h>
*/
import "C"
const (
sysAF_UNSPEC = C.AF_UNSPEC
sysAF_INET = C.AF_INET
sysAF_INET6 = C.AF_INET6
sysSOCK_RAW = C.SOCK_RAW
)
type iovec C.struct_iovec
type msghdr C.struct_msghdr
type cmsghdr C.struct_cmsghdr
type sockaddrInet C.struct_sockaddr_in
type sockaddrInet6 C.struct_sockaddr_in6
const (
sizeofIovec = C.sizeof_struct_iovec
sizeofMsghdr = C.sizeof_struct_msghdr
sizeofCmsghdr = C.sizeof_struct_cmsghdr
sizeofSockaddrInet = C.sizeof_struct_sockaddr_in
sizeofSockaddrInet6 = C.sizeof_struct_sockaddr_in6
)

44
vendor/golang.org/x/net/internal/socket/defs_solaris.go generated vendored Normal file
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@@ -0,0 +1,44 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build ignore
// +godefs map struct_in_addr [4]byte /* in_addr */
// +godefs map struct_in6_addr [16]byte /* in6_addr */
package socket
/*
#include <sys/socket.h>
#include <netinet/in.h>
*/
import "C"
const (
sysAF_UNSPEC = C.AF_UNSPEC
sysAF_INET = C.AF_INET
sysAF_INET6 = C.AF_INET6
sysSOCK_RAW = C.SOCK_RAW
)
type iovec C.struct_iovec
type msghdr C.struct_msghdr
type cmsghdr C.struct_cmsghdr
type sockaddrInet C.struct_sockaddr_in
type sockaddrInet6 C.struct_sockaddr_in6
const (
sizeofIovec = C.sizeof_struct_iovec
sizeofMsghdr = C.sizeof_struct_msghdr
sizeofCmsghdr = C.sizeof_struct_cmsghdr
sizeofSockaddrInet = C.sizeof_struct_sockaddr_in
sizeofSockaddrInet6 = C.sizeof_struct_sockaddr_in6
)

31
vendor/golang.org/x/net/internal/socket/error_unix.go generated vendored Normal file
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@@ -0,0 +1,31 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build darwin dragonfly freebsd linux netbsd openbsd solaris
package socket
import "syscall"
var (
errEAGAIN error = syscall.EAGAIN
errEINVAL error = syscall.EINVAL
errENOENT error = syscall.ENOENT
)
// errnoErr returns common boxed Errno values, to prevent allocations
// at runtime.
func errnoErr(errno syscall.Errno) error {
switch errno {
case 0:
return nil
case syscall.EAGAIN:
return errEAGAIN
case syscall.EINVAL:
return errEINVAL
case syscall.ENOENT:
return errENOENT
}
return errno
}

26
vendor/golang.org/x/net/internal/socket/error_windows.go generated vendored Normal file
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@@ -0,0 +1,26 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package socket
import "syscall"
var (
errERROR_IO_PENDING error = syscall.ERROR_IO_PENDING
errEINVAL error = syscall.EINVAL
)
// errnoErr returns common boxed Errno values, to prevent allocations
// at runtime.
func errnoErr(errno syscall.Errno) error {
switch errno {
case 0:
return nil
case syscall.ERROR_IO_PENDING:
return errERROR_IO_PENDING
case syscall.EINVAL:
return errEINVAL
}
return errno
}

19
vendor/golang.org/x/net/internal/socket/iovec_32bit.go generated vendored Normal file
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@@ -0,0 +1,19 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build arm mips mipsle 386
// +build darwin dragonfly freebsd linux netbsd openbsd
package socket
import "unsafe"
func (v *iovec) set(b []byte) {
l := len(b)
if l == 0 {
return
}
v.Base = (*byte)(unsafe.Pointer(&b[0]))
v.Len = uint32(l)
}

19
vendor/golang.org/x/net/internal/socket/iovec_64bit.go generated vendored Normal file
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@@ -0,0 +1,19 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build arm64 amd64 ppc64 ppc64le mips64 mips64le s390x
// +build darwin dragonfly freebsd linux netbsd openbsd
package socket
import "unsafe"
func (v *iovec) set(b []byte) {
l := len(b)
if l == 0 {
return
}
v.Base = (*byte)(unsafe.Pointer(&b[0]))
v.Len = uint64(l)
}

19
vendor/golang.org/x/net/internal/socket/iovec_solaris_64bit.go generated vendored Normal file
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@@ -0,0 +1,19 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build amd64
// +build solaris
package socket
import "unsafe"
func (v *iovec) set(b []byte) {
l := len(b)
if l == 0 {
return
}
v.Base = (*int8)(unsafe.Pointer(&b[0]))
v.Len = uint64(l)
}

11
vendor/golang.org/x/net/internal/socket/iovec_stub.go generated vendored Normal file
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@@ -0,0 +1,11 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !darwin,!dragonfly,!freebsd,!linux,!netbsd,!openbsd,!solaris
package socket
type iovec struct{}
func (v *iovec) set(b []byte) {}

21
vendor/golang.org/x/net/internal/socket/mmsghdr_stub.go generated vendored Normal file
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@@ -0,0 +1,21 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !linux,!netbsd
package socket
import "net"
type mmsghdr struct{}
type mmsghdrs []mmsghdr
func (hs mmsghdrs) pack(ms []Message, parseFn func([]byte, string) (net.Addr, error), marshalFn func(net.Addr) []byte) error {
return nil
}
func (hs mmsghdrs) unpack(ms []Message, parseFn func([]byte, string) (net.Addr, error), hint string) error {
return nil
}

42
vendor/golang.org/x/net/internal/socket/mmsghdr_unix.go generated vendored Normal file
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@@ -0,0 +1,42 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build linux netbsd
package socket
import "net"
type mmsghdrs []mmsghdr
func (hs mmsghdrs) pack(ms []Message, parseFn func([]byte, string) (net.Addr, error), marshalFn func(net.Addr) []byte) error {
for i := range hs {
vs := make([]iovec, len(ms[i].Buffers))
var sa []byte
if parseFn != nil {
sa = make([]byte, sizeofSockaddrInet6)
}
if marshalFn != nil {
sa = marshalFn(ms[i].Addr)
}
hs[i].Hdr.pack(vs, ms[i].Buffers, ms[i].OOB, sa)
}
return nil
}
func (hs mmsghdrs) unpack(ms []Message, parseFn func([]byte, string) (net.Addr, error), hint string) error {
for i := range hs {
ms[i].N = int(hs[i].Len)
ms[i].NN = hs[i].Hdr.controllen()
ms[i].Flags = hs[i].Hdr.flags()
if parseFn != nil {
var err error
ms[i].Addr, err = parseFn(hs[i].Hdr.name(), hint)
if err != nil {
return err
}
}
}
return nil
}

39
vendor/golang.org/x/net/internal/socket/msghdr_bsd.go generated vendored Normal file
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@@ -0,0 +1,39 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build darwin dragonfly freebsd netbsd openbsd
package socket
import "unsafe"
func (h *msghdr) pack(vs []iovec, bs [][]byte, oob []byte, sa []byte) {
for i := range vs {
vs[i].set(bs[i])
}
h.setIov(vs)
if len(oob) > 0 {
h.Control = (*byte)(unsafe.Pointer(&oob[0]))
h.Controllen = uint32(len(oob))
}
if sa != nil {
h.Name = (*byte)(unsafe.Pointer(&sa[0]))
h.Namelen = uint32(len(sa))
}
}
func (h *msghdr) name() []byte {
if h.Name != nil && h.Namelen > 0 {
return (*[sizeofSockaddrInet6]byte)(unsafe.Pointer(h.Name))[:h.Namelen]
}
return nil
}
func (h *msghdr) controllen() int {
return int(h.Controllen)
}
func (h *msghdr) flags() int {
return int(h.Flags)
}

16
vendor/golang.org/x/net/internal/socket/msghdr_bsdvar.go generated vendored Normal file
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@@ -0,0 +1,16 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build darwin dragonfly freebsd netbsd
package socket
func (h *msghdr) setIov(vs []iovec) {
l := len(vs)
if l == 0 {
return
}
h.Iov = &vs[0]
h.Iovlen = int32(l)
}

36
vendor/golang.org/x/net/internal/socket/msghdr_linux.go generated vendored Normal file
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@@ -0,0 +1,36 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package socket
import "unsafe"
func (h *msghdr) pack(vs []iovec, bs [][]byte, oob []byte, sa []byte) {
for i := range vs {
vs[i].set(bs[i])
}
h.setIov(vs)
if len(oob) > 0 {
h.setControl(oob)
}
if sa != nil {
h.Name = (*byte)(unsafe.Pointer(&sa[0]))
h.Namelen = uint32(len(sa))
}
}
func (h *msghdr) name() []byte {
if h.Name != nil && h.Namelen > 0 {
return (*[sizeofSockaddrInet6]byte)(unsafe.Pointer(h.Name))[:h.Namelen]
}
return nil
}
func (h *msghdr) controllen() int {
return int(h.Controllen)
}
func (h *msghdr) flags() int {
return int(h.Flags)
}

24
vendor/golang.org/x/net/internal/socket/msghdr_linux_32bit.go generated vendored Normal file
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@@ -0,0 +1,24 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build arm mips mipsle 386
// +build linux
package socket
import "unsafe"
func (h *msghdr) setIov(vs []iovec) {
l := len(vs)
if l == 0 {
return
}
h.Iov = &vs[0]
h.Iovlen = uint32(l)
}
func (h *msghdr) setControl(b []byte) {
h.Control = (*byte)(unsafe.Pointer(&b[0]))
h.Controllen = uint32(len(b))
}

24
vendor/golang.org/x/net/internal/socket/msghdr_linux_64bit.go generated vendored Normal file
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@@ -0,0 +1,24 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build arm64 amd64 ppc64 ppc64le mips64 mips64le s390x
// +build linux
package socket
import "unsafe"
func (h *msghdr) setIov(vs []iovec) {
l := len(vs)
if l == 0 {
return
}
h.Iov = &vs[0]
h.Iovlen = uint64(l)
}
func (h *msghdr) setControl(b []byte) {
h.Control = (*byte)(unsafe.Pointer(&b[0]))
h.Controllen = uint64(len(b))
}

14
vendor/golang.org/x/net/internal/socket/msghdr_openbsd.go generated vendored Normal file
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@@ -0,0 +1,14 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package socket
func (h *msghdr) setIov(vs []iovec) {
l := len(vs)
if l == 0 {
return
}
h.Iov = &vs[0]
h.Iovlen = uint32(l)
}

36
vendor/golang.org/x/net/internal/socket/msghdr_solaris_64bit.go generated vendored Normal file
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@@ -0,0 +1,36 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build amd64
// +build solaris
package socket
import "unsafe"
func (h *msghdr) pack(vs []iovec, bs [][]byte, oob []byte, sa []byte) {
for i := range vs {
vs[i].set(bs[i])
}
if len(vs) > 0 {
h.Iov = &vs[0]
h.Iovlen = int32(len(vs))
}
if len(oob) > 0 {
h.Accrights = (*int8)(unsafe.Pointer(&oob[0]))
h.Accrightslen = int32(len(oob))
}
if sa != nil {
h.Name = (*byte)(unsafe.Pointer(&sa[0]))
h.Namelen = uint32(len(sa))
}
}
func (h *msghdr) controllen() int {
return int(h.Accrightslen)
}
func (h *msghdr) flags() int {
return int(NativeEndian.Uint32(h.Pad_cgo_2[:]))
}

14
vendor/golang.org/x/net/internal/socket/msghdr_stub.go generated vendored Normal file
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@@ -0,0 +1,14 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !darwin,!dragonfly,!freebsd,!linux,!netbsd,!openbsd,!solaris
package socket
type msghdr struct{}
func (h *msghdr) pack(vs []iovec, bs [][]byte, oob []byte, sa []byte) {}
func (h *msghdr) name() []byte { return nil }
func (h *msghdr) controllen() int { return 0 }
func (h *msghdr) flags() int { return 0 }

66
vendor/golang.org/x/net/internal/socket/rawconn.go generated vendored Normal file
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@@ -0,0 +1,66 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build go1.9
package socket
import (
"errors"
"net"
"os"
"syscall"
)
// A Conn represents a raw connection.
type Conn struct {
network string
c syscall.RawConn
}
// NewConn returns a new raw connection.
func NewConn(c net.Conn) (*Conn, error) {
var err error
var cc Conn
switch c := c.(type) {
case *net.TCPConn:
cc.network = "tcp"
cc.c, err = c.SyscallConn()
case *net.UDPConn:
cc.network = "udp"
cc.c, err = c.SyscallConn()
case *net.IPConn:
cc.network = "ip"
cc.c, err = c.SyscallConn()
default:
return nil, errors.New("unknown connection type")
}
if err != nil {
return nil, err
}
return &cc, nil
}
func (o *Option) get(c *Conn, b []byte) (int, error) {
var operr error
var n int
fn := func(s uintptr) {
n, operr = getsockopt(s, o.Level, o.Name, b)
}
if err := c.c.Control(fn); err != nil {
return 0, err
}
return n, os.NewSyscallError("getsockopt", operr)
}
func (o *Option) set(c *Conn, b []byte) error {
var operr error
fn := func(s uintptr) {
operr = setsockopt(s, o.Level, o.Name, b)
}
if err := c.c.Control(fn); err != nil {
return err
}
return os.NewSyscallError("setsockopt", operr)
}

74
vendor/golang.org/x/net/internal/socket/rawconn_mmsg.go generated vendored Normal file
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@@ -0,0 +1,74 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build go1.9
// +build linux
package socket
import (
"net"
"os"
"syscall"
)
func (c *Conn) recvMsgs(ms []Message, flags int) (int, error) {
hs := make(mmsghdrs, len(ms))
var parseFn func([]byte, string) (net.Addr, error)
if c.network != "tcp" {
parseFn = parseInetAddr
}
if err := hs.pack(ms, parseFn, nil); err != nil {
return 0, err
}
var operr error
var n int
fn := func(s uintptr) bool {
n, operr = recvmmsg(s, hs, flags)
if operr == syscall.EAGAIN {
return false
}
return true
}
if err := c.c.Read(fn); err != nil {
return n, err
}
if operr != nil {
return n, os.NewSyscallError("recvmmsg", operr)
}
if err := hs[:n].unpack(ms[:n], parseFn, c.network); err != nil {
return n, err
}
return n, nil
}
func (c *Conn) sendMsgs(ms []Message, flags int) (int, error) {
hs := make(mmsghdrs, len(ms))
var marshalFn func(net.Addr) []byte
if c.network != "tcp" {
marshalFn = marshalInetAddr
}
if err := hs.pack(ms, nil, marshalFn); err != nil {
return 0, err
}
var operr error
var n int
fn := func(s uintptr) bool {
n, operr = sendmmsg(s, hs, flags)
if operr == syscall.EAGAIN {
return false
}
return true
}
if err := c.c.Write(fn); err != nil {
return n, err
}
if operr != nil {
return n, os.NewSyscallError("sendmmsg", operr)
}
if err := hs[:n].unpack(ms[:n], nil, ""); err != nil {
return n, err
}
return n, nil
}

77
vendor/golang.org/x/net/internal/socket/rawconn_msg.go generated vendored Normal file
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@@ -0,0 +1,77 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build go1.9
// +build darwin dragonfly freebsd linux netbsd openbsd solaris windows
package socket
import (
"os"
"syscall"
)
func (c *Conn) recvMsg(m *Message, flags int) error {
var h msghdr
vs := make([]iovec, len(m.Buffers))
var sa []byte
if c.network != "tcp" {
sa = make([]byte, sizeofSockaddrInet6)
}
h.pack(vs, m.Buffers, m.OOB, sa)
var operr error
var n int
fn := func(s uintptr) bool {
n, operr = recvmsg(s, &h, flags)
if operr == syscall.EAGAIN {
return false
}
return true
}
if err := c.c.Read(fn); err != nil {
return err
}
if operr != nil {
return os.NewSyscallError("recvmsg", operr)
}
if c.network != "tcp" {
var err error
m.Addr, err = parseInetAddr(sa[:], c.network)
if err != nil {
return err
}
}
m.N = n
m.NN = h.controllen()
m.Flags = h.flags()
return nil
}
func (c *Conn) sendMsg(m *Message, flags int) error {
var h msghdr
vs := make([]iovec, len(m.Buffers))
var sa []byte
if m.Addr != nil {
sa = marshalInetAddr(m.Addr)
}
h.pack(vs, m.Buffers, m.OOB, sa)
var operr error
var n int
fn := func(s uintptr) bool {
n, operr = sendmsg(s, &h, flags)
if operr == syscall.EAGAIN {
return false
}
return true
}
if err := c.c.Write(fn); err != nil {
return err
}
if operr != nil {
return os.NewSyscallError("sendmsg", operr)
}
m.N = n
m.NN = len(m.OOB)
return nil
}

18
vendor/golang.org/x/net/internal/socket/rawconn_nommsg.go generated vendored Normal file
View File

@@ -0,0 +1,18 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build go1.9
// +build !linux
package socket
import "errors"
func (c *Conn) recvMsgs(ms []Message, flags int) (int, error) {
return 0, errors.New("not implemented")
}
func (c *Conn) sendMsgs(ms []Message, flags int) (int, error) {
return 0, errors.New("not implemented")
}

18
vendor/golang.org/x/net/internal/socket/rawconn_nomsg.go generated vendored Normal file
View File

@@ -0,0 +1,18 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build go1.9
// +build !darwin,!dragonfly,!freebsd,!linux,!netbsd,!openbsd,!solaris,!windows
package socket
import "errors"
func (c *Conn) recvMsg(m *Message, flags int) error {
return errors.New("not implemented")
}
func (c *Conn) sendMsg(m *Message, flags int) error {
return errors.New("not implemented")
}

25
vendor/golang.org/x/net/internal/socket/rawconn_stub.go generated vendored Normal file
View File

@@ -0,0 +1,25 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !go1.9
package socket
import "errors"
func (c *Conn) recvMsg(m *Message, flags int) error {
return errors.New("not implemented")
}
func (c *Conn) sendMsg(m *Message, flags int) error {
return errors.New("not implemented")
}
func (c *Conn) recvMsgs(ms []Message, flags int) (int, error) {
return 0, errors.New("not implemented")
}
func (c *Conn) sendMsgs(ms []Message, flags int) (int, error) {
return 0, errors.New("not implemented")
}

62
vendor/golang.org/x/net/internal/socket/reflect.go generated vendored Normal file
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@@ -0,0 +1,62 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !go1.9
package socket
import (
"errors"
"net"
"os"
"reflect"
"runtime"
)
// A Conn represents a raw connection.
type Conn struct {
c net.Conn
}
// NewConn returns a new raw connection.
func NewConn(c net.Conn) (*Conn, error) {
return &Conn{c: c}, nil
}
func (o *Option) get(c *Conn, b []byte) (int, error) {
s, err := socketOf(c.c)
if err != nil {
return 0, err
}
n, err := getsockopt(s, o.Level, o.Name, b)
return n, os.NewSyscallError("getsockopt", err)
}
func (o *Option) set(c *Conn, b []byte) error {
s, err := socketOf(c.c)
if err != nil {
return err
}
return os.NewSyscallError("setsockopt", setsockopt(s, o.Level, o.Name, b))
}
func socketOf(c net.Conn) (uintptr, error) {
switch c.(type) {
case *net.TCPConn, *net.UDPConn, *net.IPConn:
v := reflect.ValueOf(c)
switch e := v.Elem(); e.Kind() {
case reflect.Struct:
fd := e.FieldByName("conn").FieldByName("fd")
switch e := fd.Elem(); e.Kind() {
case reflect.Struct:
sysfd := e.FieldByName("sysfd")
if runtime.GOOS == "windows" {
return uintptr(sysfd.Uint()), nil
}
return uintptr(sysfd.Int()), nil
}
}
}
return 0, errors.New("invalid type")
}

285
vendor/golang.org/x/net/internal/socket/socket.go generated vendored Normal file
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@@ -0,0 +1,285 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package socket provides a portable interface for socket system
// calls.
package socket // import "golang.org/x/net/internal/socket"
import (
"errors"
"net"
"unsafe"
)
// An Option represents a sticky socket option.
type Option struct {
Level int // level
Name int // name; must be equal or greater than 1
Len int // length of value in bytes; must be equal or greater than 1
}
// Get reads a value for the option from the kernel.
// It returns the number of bytes written into b.
func (o *Option) Get(c *Conn, b []byte) (int, error) {
if o.Name < 1 || o.Len < 1 {
return 0, errors.New("invalid option")
}
if len(b) < o.Len {
return 0, errors.New("short buffer")
}
return o.get(c, b)
}
// GetInt returns an integer value for the option.
//
// The Len field of Option must be either 1 or 4.
func (o *Option) GetInt(c *Conn) (int, error) {
if o.Len != 1 && o.Len != 4 {
return 0, errors.New("invalid option")
}
var b []byte
var bb [4]byte
if o.Len == 1 {
b = bb[:1]
} else {
b = bb[:4]
}
n, err := o.get(c, b)
if err != nil {
return 0, err
}
if n != o.Len {
return 0, errors.New("invalid option length")
}
if o.Len == 1 {
return int(b[0]), nil
}
return int(NativeEndian.Uint32(b[:4])), nil
}
// Set writes the option and value to the kernel.
func (o *Option) Set(c *Conn, b []byte) error {
if o.Name < 1 || o.Len < 1 {
return errors.New("invalid option")
}
if len(b) < o.Len {
return errors.New("short buffer")
}
return o.set(c, b)
}
// SetInt writes the option and value to the kernel.
//
// The Len field of Option must be either 1 or 4.
func (o *Option) SetInt(c *Conn, v int) error {
if o.Len != 1 && o.Len != 4 {
return errors.New("invalid option")
}
var b []byte
if o.Len == 1 {
b = []byte{byte(v)}
} else {
var bb [4]byte
NativeEndian.PutUint32(bb[:o.Len], uint32(v))
b = bb[:4]
}
return o.set(c, b)
}
func controlHeaderLen() int {
return roundup(sizeofCmsghdr)
}
func controlMessageLen(dataLen int) int {
return roundup(sizeofCmsghdr) + dataLen
}
// ControlMessageSpace returns the whole length of control message.
func ControlMessageSpace(dataLen int) int {
return roundup(sizeofCmsghdr) + roundup(dataLen)
}
// A ControlMessage represents the head message in a stream of control
// messages.
//
// A control message comprises of a header, data and a few padding
// fields to conform to the interface to the kernel.
//
// See RFC 3542 for further information.
type ControlMessage []byte
// Data returns the data field of the control message at the head on
// m.
func (m ControlMessage) Data(dataLen int) []byte {
l := controlHeaderLen()
if len(m) < l || len(m) < l+dataLen {
return nil
}
return m[l : l+dataLen]
}
// Next returns the control message at the next on m.
//
// Next works only for standard control messages.
func (m ControlMessage) Next(dataLen int) ControlMessage {
l := ControlMessageSpace(dataLen)
if len(m) < l {
return nil
}
return m[l:]
}
// MarshalHeader marshals the header fields of the control message at
// the head on m.
func (m ControlMessage) MarshalHeader(lvl, typ, dataLen int) error {
if len(m) < controlHeaderLen() {
return errors.New("short message")
}
h := (*cmsghdr)(unsafe.Pointer(&m[0]))
h.set(controlMessageLen(dataLen), lvl, typ)
return nil
}
// ParseHeader parses and returns the header fields of the control
// message at the head on m.
func (m ControlMessage) ParseHeader() (lvl, typ, dataLen int, err error) {
l := controlHeaderLen()
if len(m) < l {
return 0, 0, 0, errors.New("short message")
}
h := (*cmsghdr)(unsafe.Pointer(&m[0]))
return h.lvl(), h.typ(), int(uint64(h.len()) - uint64(l)), nil
}
// Marshal marshals the control message at the head on m, and returns
// the next control message.
func (m ControlMessage) Marshal(lvl, typ int, data []byte) (ControlMessage, error) {
l := len(data)
if len(m) < ControlMessageSpace(l) {
return nil, errors.New("short message")
}
h := (*cmsghdr)(unsafe.Pointer(&m[0]))
h.set(controlMessageLen(l), lvl, typ)
if l > 0 {
copy(m.Data(l), data)
}
return m.Next(l), nil
}
// Parse parses m as a single or multiple control messages.
//
// Parse works for both standard and compatible messages.
func (m ControlMessage) Parse() ([]ControlMessage, error) {
var ms []ControlMessage
for len(m) >= controlHeaderLen() {
h := (*cmsghdr)(unsafe.Pointer(&m[0]))
l := h.len()
if l <= 0 {
return nil, errors.New("invalid header length")
}
if uint64(l) < uint64(controlHeaderLen()) {
return nil, errors.New("invalid message length")
}
if uint64(l) > uint64(len(m)) {
return nil, errors.New("short buffer")
}
// On message reception:
//
// |<- ControlMessageSpace --------------->|
// |<- controlMessageLen ---------->| |
// |<- controlHeaderLen ->| | |
// +---------------+------+---------+------+
// | Header | PadH | Data | PadD |
// +---------------+------+---------+------+
//
// On compatible message reception:
//
// | ... |<- controlMessageLen ----------->|
// | ... |<- controlHeaderLen ->| |
// +-----+---------------+------+----------+
// | ... | Header | PadH | Data |
// +-----+---------------+------+----------+
ms = append(ms, ControlMessage(m[:l]))
ll := l - controlHeaderLen()
if len(m) >= ControlMessageSpace(ll) {
m = m[ControlMessageSpace(ll):]
} else {
m = m[controlMessageLen(ll):]
}
}
return ms, nil
}
// NewControlMessage returns a new stream of control messages.
func NewControlMessage(dataLen []int) ControlMessage {
var l int
for i := range dataLen {
l += ControlMessageSpace(dataLen[i])
}
return make([]byte, l)
}
// A Message represents an IO message.
type Message struct {
// When writing, the Buffers field must contain at least one
// byte to write.
// When reading, the Buffers field will always contain a byte
// to read.
Buffers [][]byte
// OOB contains protocol-specific control or miscellaneous
// ancillary data known as out-of-band data.
OOB []byte
// Addr specifies a destination address when writing.
// It can be nil when the underlying protocol of the raw
// connection uses connection-oriented communication.
// After a successful read, it may contain the source address
// on the received packet.
Addr net.Addr
N int // # of bytes read or written from/to Buffers
NN int // # of bytes read or written from/to OOB
Flags int // protocol-specific information on the received message
}
// RecvMsg wraps recvmsg system call.
//
// The provided flags is a set of platform-dependent flags, such as
// syscall.MSG_PEEK.
func (c *Conn) RecvMsg(m *Message, flags int) error {
return c.recvMsg(m, flags)
}
// SendMsg wraps sendmsg system call.
//
// The provided flags is a set of platform-dependent flags, such as
// syscall.MSG_DONTROUTE.
func (c *Conn) SendMsg(m *Message, flags int) error {
return c.sendMsg(m, flags)
}
// RecvMsgs wraps recvmmsg system call.
//
// It returns the number of processed messages.
//
// The provided flags is a set of platform-dependent flags, such as
// syscall.MSG_PEEK.
//
// Only Linux supports this.
func (c *Conn) RecvMsgs(ms []Message, flags int) (int, error) {
return c.recvMsgs(ms, flags)
}
// SendMsgs wraps sendmmsg system call.
//
// It returns the number of processed messages.
//
// The provided flags is a set of platform-dependent flags, such as
// syscall.MSG_DONTROUTE.
//
// Only Linux supports this.
func (c *Conn) SendMsgs(ms []Message, flags int) (int, error) {
return c.sendMsgs(ms, flags)
}

33
vendor/golang.org/x/net/internal/socket/sys.go generated vendored Normal file
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@@ -0,0 +1,33 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package socket
import (
"encoding/binary"
"unsafe"
)
var (
// NativeEndian is the machine native endian implementation of
// ByteOrder.
NativeEndian binary.ByteOrder
kernelAlign int
)
func init() {
i := uint32(1)
b := (*[4]byte)(unsafe.Pointer(&i))
if b[0] == 1 {
NativeEndian = binary.LittleEndian
} else {
NativeEndian = binary.BigEndian
}
kernelAlign = probeProtocolStack()
}
func roundup(l int) int {
return (l + kernelAlign - 1) & ^(kernelAlign - 1)
}

17
vendor/golang.org/x/net/internal/socket/sys_bsd.go generated vendored Normal file
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@@ -0,0 +1,17 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build darwin dragonfly freebsd openbsd
package socket
import "errors"
func recvmmsg(s uintptr, hs []mmsghdr, flags int) (int, error) {
return 0, errors.New("not implemented")
}
func sendmmsg(s uintptr, hs []mmsghdr, flags int) (int, error) {
return 0, errors.New("not implemented")
}

14
vendor/golang.org/x/net/internal/socket/sys_bsdvar.go generated vendored Normal file
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@@ -0,0 +1,14 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build freebsd netbsd openbsd
package socket
import "unsafe"
func probeProtocolStack() int {
var p uintptr
return int(unsafe.Sizeof(p))
}

7
vendor/golang.org/x/net/internal/socket/sys_darwin.go generated vendored Normal file
View File

@@ -0,0 +1,7 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package socket
func probeProtocolStack() int { return 4 }

7
vendor/golang.org/x/net/internal/socket/sys_dragonfly.go generated vendored Normal file
View File

@@ -0,0 +1,7 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package socket
func probeProtocolStack() int { return 4 }

27
vendor/golang.org/x/net/internal/socket/sys_linux.go generated vendored Normal file
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@@ -0,0 +1,27 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build linux,!s390x,!386
package socket
import (
"syscall"
"unsafe"
)
func probeProtocolStack() int {
var p uintptr
return int(unsafe.Sizeof(p))
}
func recvmmsg(s uintptr, hs []mmsghdr, flags int) (int, error) {
n, _, errno := syscall.Syscall6(sysRECVMMSG, s, uintptr(unsafe.Pointer(&hs[0])), uintptr(len(hs)), uintptr(flags), 0, 0)
return int(n), errnoErr(errno)
}
func sendmmsg(s uintptr, hs []mmsghdr, flags int) (int, error) {
n, _, errno := syscall.Syscall6(sysSENDMMSG, s, uintptr(unsafe.Pointer(&hs[0])), uintptr(len(hs)), uintptr(flags), 0, 0)
return int(n), errnoErr(errno)
}

55
vendor/golang.org/x/net/internal/socket/sys_linux_386.go generated vendored Normal file
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@@ -0,0 +1,55 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package socket
import (
"syscall"
"unsafe"
)
func probeProtocolStack() int { return 4 }
const (
sysSETSOCKOPT = 0xe
sysGETSOCKOPT = 0xf
sysSENDMSG = 0x10
sysRECVMSG = 0x11
sysRECVMMSG = 0x13
sysSENDMMSG = 0x14
)
func socketcall(call, a0, a1, a2, a3, a4, a5 uintptr) (uintptr, syscall.Errno)
func rawsocketcall(call, a0, a1, a2, a3, a4, a5 uintptr) (uintptr, syscall.Errno)
func getsockopt(s uintptr, level, name int, b []byte) (int, error) {
l := uint32(len(b))
_, errno := socketcall(sysGETSOCKOPT, s, uintptr(level), uintptr(name), uintptr(unsafe.Pointer(&b[0])), uintptr(unsafe.Pointer(&l)), 0)
return int(l), errnoErr(errno)
}
func setsockopt(s uintptr, level, name int, b []byte) error {
_, errno := socketcall(sysSETSOCKOPT, s, uintptr(level), uintptr(name), uintptr(unsafe.Pointer(&b[0])), uintptr(len(b)), 0)
return errnoErr(errno)
}
func recvmsg(s uintptr, h *msghdr, flags int) (int, error) {
n, errno := socketcall(sysRECVMSG, s, uintptr(unsafe.Pointer(h)), uintptr(flags), 0, 0, 0)
return int(n), errnoErr(errno)
}
func sendmsg(s uintptr, h *msghdr, flags int) (int, error) {
n, errno := socketcall(sysSENDMSG, s, uintptr(unsafe.Pointer(h)), uintptr(flags), 0, 0, 0)
return int(n), errnoErr(errno)
}
func recvmmsg(s uintptr, hs []mmsghdr, flags int) (int, error) {
n, errno := socketcall(sysRECVMMSG, s, uintptr(unsafe.Pointer(&hs[0])), uintptr(len(hs)), uintptr(flags), 0, 0)
return int(n), errnoErr(errno)
}
func sendmmsg(s uintptr, hs []mmsghdr, flags int) (int, error) {
n, errno := socketcall(sysSENDMMSG, s, uintptr(unsafe.Pointer(&hs[0])), uintptr(len(hs)), uintptr(flags), 0, 0)
return int(n), errnoErr(errno)
}

3
vendor/golang.org/x/net/ipv4/sys_linux_386.s → vendor/golang.org/x/net/internal/socket/sys_linux_386.s generated vendored
View File

@@ -6,3 +6,6 @@
TEXT ·socketcall(SB),NOSPLIT,$0-36
JMP syscall·socketcall(SB)
TEXT ·rawsocketcall(SB),NOSPLIT,$0-36
JMP syscall·rawsocketcall(SB)

10
vendor/golang.org/x/net/internal/socket/sys_linux_amd64.go generated vendored Normal file
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@@ -0,0 +1,10 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package socket
const (
sysRECVMMSG = 0x12b
sysSENDMMSG = 0x133
)

10
vendor/golang.org/x/net/internal/socket/sys_linux_arm.go generated vendored Normal file
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@@ -0,0 +1,10 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package socket
const (
sysRECVMMSG = 0x16d
sysSENDMMSG = 0x176
)

10
vendor/golang.org/x/net/internal/socket/sys_linux_arm64.go generated vendored Normal file
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@@ -0,0 +1,10 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package socket
const (
sysRECVMMSG = 0xf3
sysSENDMMSG = 0x10d
)

10
vendor/golang.org/x/net/internal/socket/sys_linux_mips.go generated vendored Normal file
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@@ -0,0 +1,10 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package socket
const (
sysRECVMMSG = 0x10ef
sysSENDMMSG = 0x10f7
)

10
vendor/golang.org/x/net/internal/socket/sys_linux_mips64.go generated vendored Normal file
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@@ -0,0 +1,10 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package socket
const (
sysRECVMMSG = 0x14ae
sysSENDMMSG = 0x14b6
)

10
vendor/golang.org/x/net/internal/socket/sys_linux_mips64le.go generated vendored Normal file
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@@ -0,0 +1,10 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package socket
const (
sysRECVMMSG = 0x14ae
sysSENDMMSG = 0x14b6
)

10
vendor/golang.org/x/net/internal/socket/sys_linux_mipsle.go generated vendored Normal file
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@@ -0,0 +1,10 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package socket
const (
sysRECVMMSG = 0x10ef
sysSENDMMSG = 0x10f7
)

10
vendor/golang.org/x/net/internal/socket/sys_linux_ppc64.go generated vendored Normal file
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@@ -0,0 +1,10 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package socket
const (
sysRECVMMSG = 0x157
sysSENDMMSG = 0x15d
)

10
vendor/golang.org/x/net/internal/socket/sys_linux_ppc64le.go generated vendored Normal file
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@@ -0,0 +1,10 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package socket
const (
sysRECVMMSG = 0x157
sysSENDMMSG = 0x15d
)

55
vendor/golang.org/x/net/internal/socket/sys_linux_s390x.go generated vendored Normal file
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@@ -0,0 +1,55 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package socket
import (
"syscall"
"unsafe"
)
func probeProtocolStack() int { return 8 }
const (
sysSETSOCKOPT = 0xe
sysGETSOCKOPT = 0xf
sysSENDMSG = 0x10
sysRECVMSG = 0x11
sysRECVMMSG = 0x13
sysSENDMMSG = 0x14
)
func socketcall(call, a0, a1, a2, a3, a4, a5 uintptr) (uintptr, syscall.Errno)
func rawsocketcall(call, a0, a1, a2, a3, a4, a5 uintptr) (uintptr, syscall.Errno)
func getsockopt(s uintptr, level, name int, b []byte) (int, error) {
l := uint32(len(b))
_, errno := socketcall(sysGETSOCKOPT, s, uintptr(level), uintptr(name), uintptr(unsafe.Pointer(&b[0])), uintptr(unsafe.Pointer(&l)), 0)
return int(l), errnoErr(errno)
}
func setsockopt(s uintptr, level, name int, b []byte) error {
_, errno := socketcall(sysSETSOCKOPT, s, uintptr(level), uintptr(name), uintptr(unsafe.Pointer(&b[0])), uintptr(len(b)), 0)
return errnoErr(errno)
}
func recvmsg(s uintptr, h *msghdr, flags int) (int, error) {
n, errno := socketcall(sysRECVMSG, s, uintptr(unsafe.Pointer(h)), uintptr(flags), 0, 0, 0)
return int(n), errnoErr(errno)
}
func sendmsg(s uintptr, h *msghdr, flags int) (int, error) {
n, errno := socketcall(sysSENDMSG, s, uintptr(unsafe.Pointer(h)), uintptr(flags), 0, 0, 0)
return int(n), errnoErr(errno)
}
func recvmmsg(s uintptr, hs []mmsghdr, flags int) (int, error) {
n, errno := socketcall(sysRECVMMSG, s, uintptr(unsafe.Pointer(&hs[0])), uintptr(len(hs)), uintptr(flags), 0, 0)
return int(n), errnoErr(errno)
}
func sendmmsg(s uintptr, hs []mmsghdr, flags int) (int, error) {
n, errno := socketcall(sysSENDMMSG, s, uintptr(unsafe.Pointer(&hs[0])), uintptr(len(hs)), uintptr(flags), 0, 0)
return int(n), errnoErr(errno)
}

11
vendor/golang.org/x/net/internal/socket/sys_linux_s390x.s generated vendored Normal file
View File

@@ -0,0 +1,11 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
#include "textflag.h"
TEXT ·socketcall(SB),NOSPLIT,$0-72
JMP syscall·socketcall(SB)
TEXT ·rawsocketcall(SB),NOSPLIT,$0-72
JMP syscall·rawsocketcall(SB)

25
vendor/golang.org/x/net/internal/socket/sys_netbsd.go generated vendored Normal file
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@@ -0,0 +1,25 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package socket
import (
"syscall"
"unsafe"
)
const (
sysRECVMMSG = 0x1db
sysSENDMMSG = 0x1dc
)
func recvmmsg(s uintptr, hs []mmsghdr, flags int) (int, error) {
n, _, errno := syscall.Syscall6(sysRECVMMSG, s, uintptr(unsafe.Pointer(&hs[0])), uintptr(len(hs)), uintptr(flags), 0, 0)
return int(n), errnoErr(errno)
}
func sendmmsg(s uintptr, hs []mmsghdr, flags int) (int, error) {
n, _, errno := syscall.Syscall6(sysSENDMMSG, s, uintptr(unsafe.Pointer(&hs[0])), uintptr(len(hs)), uintptr(flags), 0, 0)
return int(n), errnoErr(errno)
}

168
vendor/golang.org/x/net/internal/socket/sys_posix.go generated vendored Normal file
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@@ -0,0 +1,168 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build go1.9
// +build darwin dragonfly freebsd linux netbsd openbsd solaris windows
package socket
import (
"encoding/binary"
"errors"
"net"
"runtime"
"strconv"
"sync"
"time"
)
func marshalInetAddr(a net.Addr) []byte {
switch a := a.(type) {
case *net.TCPAddr:
return marshalSockaddr(a.IP, a.Port, a.Zone)
case *net.UDPAddr:
return marshalSockaddr(a.IP, a.Port, a.Zone)
case *net.IPAddr:
return marshalSockaddr(a.IP, 0, a.Zone)
default:
return nil
}
}
func marshalSockaddr(ip net.IP, port int, zone string) []byte {
if ip4 := ip.To4(); ip4 != nil {
b := make([]byte, sizeofSockaddrInet)
switch runtime.GOOS {
case "android", "linux", "solaris", "windows":
NativeEndian.PutUint16(b[:2], uint16(sysAF_INET))
default:
b[0] = sizeofSockaddrInet
b[1] = sysAF_INET
}
binary.BigEndian.PutUint16(b[2:4], uint16(port))
copy(b[4:8], ip4)
return b
}
if ip6 := ip.To16(); ip6 != nil && ip.To4() == nil {
b := make([]byte, sizeofSockaddrInet6)
switch runtime.GOOS {
case "android", "linux", "solaris", "windows":
NativeEndian.PutUint16(b[:2], uint16(sysAF_INET6))
default:
b[0] = sizeofSockaddrInet6
b[1] = sysAF_INET6
}
binary.BigEndian.PutUint16(b[2:4], uint16(port))
copy(b[8:24], ip6)
if zone != "" {
NativeEndian.PutUint32(b[24:28], uint32(zoneCache.index(zone)))
}
return b
}
return nil
}
func parseInetAddr(b []byte, network string) (net.Addr, error) {
if len(b) < 2 {
return nil, errors.New("invalid address")
}
var af int
switch runtime.GOOS {
case "android", "linux", "solaris", "windows":
af = int(NativeEndian.Uint16(b[:2]))
default:
af = int(b[1])
}
var ip net.IP
var zone string
if af == sysAF_INET {
if len(b) < sizeofSockaddrInet {
return nil, errors.New("short address")
}
ip = make(net.IP, net.IPv4len)
copy(ip, b[4:8])
}
if af == sysAF_INET6 {
if len(b) < sizeofSockaddrInet6 {
return nil, errors.New("short address")
}
ip = make(net.IP, net.IPv6len)
copy(ip, b[8:24])
if id := int(NativeEndian.Uint32(b[24:28])); id > 0 {
zone = zoneCache.name(id)
}
}
switch network {
case "tcp", "tcp4", "tcp6":
return &net.TCPAddr{IP: ip, Port: int(binary.BigEndian.Uint16(b[2:4])), Zone: zone}, nil
case "udp", "udp4", "udp6":
return &net.UDPAddr{IP: ip, Port: int(binary.BigEndian.Uint16(b[2:4])), Zone: zone}, nil
default:
return &net.IPAddr{IP: ip, Zone: zone}, nil
}
}
// An ipv6ZoneCache represents a cache holding partial network
// interface information. It is used for reducing the cost of IPv6
// addressing scope zone resolution.
//
// Multiple names sharing the index are managed by first-come
// first-served basis for consistency.
type ipv6ZoneCache struct {
sync.RWMutex // guard the following
lastFetched time.Time // last time routing information was fetched
toIndex map[string]int // interface name to its index
toName map[int]string // interface index to its name
}
var zoneCache = ipv6ZoneCache{
toIndex: make(map[string]int),
toName: make(map[int]string),
}
func (zc *ipv6ZoneCache) update(ift []net.Interface) {
zc.Lock()
defer zc.Unlock()
now := time.Now()
if zc.lastFetched.After(now.Add(-60 * time.Second)) {
return
}
zc.lastFetched = now
if len(ift) == 0 {
var err error
if ift, err = net.Interfaces(); err != nil {
return
}
}
zc.toIndex = make(map[string]int, len(ift))
zc.toName = make(map[int]string, len(ift))
for _, ifi := range ift {
zc.toIndex[ifi.Name] = ifi.Index
if _, ok := zc.toName[ifi.Index]; !ok {
zc.toName[ifi.Index] = ifi.Name
}
}
}
func (zc *ipv6ZoneCache) name(zone int) string {
zoneCache.update(nil)
zoneCache.RLock()
defer zoneCache.RUnlock()
name, ok := zoneCache.toName[zone]
if !ok {
name = strconv.Itoa(zone)
}
return name
}
func (zc *ipv6ZoneCache) index(zone string) int {
zoneCache.update(nil)
zoneCache.RLock()
defer zoneCache.RUnlock()
index, ok := zoneCache.toIndex[zone]
if !ok {
index, _ = strconv.Atoi(zone)
}
return index
}

71
vendor/golang.org/x/net/internal/socket/sys_solaris.go generated vendored Normal file
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@@ -0,0 +1,71 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package socket
import (
"errors"
"runtime"
"syscall"
"unsafe"
)
func probeProtocolStack() int {
switch runtime.GOARCH {
case "amd64":
return 4
default:
var p uintptr
return int(unsafe.Sizeof(p))
}
}
//go:cgo_import_dynamic libc___xnet_getsockopt __xnet_getsockopt "libsocket.so"
//go:cgo_import_dynamic libc_setsockopt setsockopt "libsocket.so"
//go:cgo_import_dynamic libc___xnet_recvmsg __xnet_recvmsg "libsocket.so"
//go:cgo_import_dynamic libc___xnet_sendmsg __xnet_sendmsg "libsocket.so"
//go:linkname procGetsockopt libc___xnet_getsockopt
//go:linkname procSetsockopt libc_setsockopt
//go:linkname procRecvmsg libc___xnet_recvmsg
//go:linkname procSendmsg libc___xnet_sendmsg
var (
procGetsockopt uintptr
procSetsockopt uintptr
procRecvmsg uintptr
procSendmsg uintptr
)
func sysvicall6(trap, nargs, a1, a2, a3, a4, a5, a6 uintptr) (uintptr, uintptr, syscall.Errno)
func rawSysvicall6(trap, nargs, a1, a2, a3, a4, a5, a6 uintptr) (uintptr, uintptr, syscall.Errno)
func getsockopt(s uintptr, level, name int, b []byte) (int, error) {
l := uint32(len(b))
_, _, errno := sysvicall6(uintptr(unsafe.Pointer(&procGetsockopt)), 5, s, uintptr(level), uintptr(name), uintptr(unsafe.Pointer(&b[0])), uintptr(unsafe.Pointer(&l)), 0)
return int(l), errnoErr(errno)
}
func setsockopt(s uintptr, level, name int, b []byte) error {
_, _, errno := sysvicall6(uintptr(unsafe.Pointer(&procSetsockopt)), 5, s, uintptr(level), uintptr(name), uintptr(unsafe.Pointer(&b[0])), uintptr(len(b)), 0)
return errnoErr(errno)
}
func recvmsg(s uintptr, h *msghdr, flags int) (int, error) {
n, _, errno := sysvicall6(uintptr(unsafe.Pointer(&procRecvmsg)), 3, s, uintptr(unsafe.Pointer(h)), uintptr(flags), 0, 0, 0)
return int(n), errnoErr(errno)
}
func sendmsg(s uintptr, h *msghdr, flags int) (int, error) {
n, _, errno := sysvicall6(uintptr(unsafe.Pointer(&procSendmsg)), 3, s, uintptr(unsafe.Pointer(h)), uintptr(flags), 0, 0, 0)
return int(n), errnoErr(errno)
}
func recvmmsg(s uintptr, hs []mmsghdr, flags int) (int, error) {
return 0, errors.New("not implemented")
}
func sendmmsg(s uintptr, hs []mmsghdr, flags int) (int, error) {
return 0, errors.New("not implemented")
}

5
vendor/golang.org/x/net/ipv6/sys_solaris_amd64.s → vendor/golang.org/x/net/internal/socket/sys_solaris_amd64.s generated vendored
View File

@@ -4,5 +4,8 @@
#include "textflag.h"
TEXT ·sysvicall6(SB),NOSPLIT,$0-88
TEXT ·sysvicall6(SB),NOSPLIT,$0-88
JMP syscall·sysvicall6(SB)
TEXT ·rawSysvicall6(SB),NOSPLIT,$0-88
JMP syscall·rawSysvicall6(SB)

64
vendor/golang.org/x/net/internal/socket/sys_stub.go generated vendored Normal file
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@@ -0,0 +1,64 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !darwin,!dragonfly,!freebsd,!linux,!netbsd,!openbsd,!solaris,!windows
package socket
import (
"errors"
"net"
"runtime"
"unsafe"
)
const (
sysAF_UNSPEC = 0x0
sysAF_INET = 0x2
sysAF_INET6 = 0xa
sysSOCK_RAW = 0x3
)
func probeProtocolStack() int {
switch runtime.GOARCH {
case "amd64p32", "mips64p32":
return 4
default:
var p uintptr
return int(unsafe.Sizeof(p))
}
}
func marshalInetAddr(ip net.IP, port int, zone string) []byte {
return nil
}
func parseInetAddr(b []byte, network string) (net.Addr, error) {
return nil, errors.New("not implemented")
}
func getsockopt(s uintptr, level, name int, b []byte) (int, error) {
return 0, errors.New("not implemented")
}
func setsockopt(s uintptr, level, name int, b []byte) error {
return errors.New("not implemented")
}
func recvmsg(s uintptr, h *msghdr, flags int) (int, error) {
return 0, errors.New("not implemented")
}
func sendmsg(s uintptr, h *msghdr, flags int) (int, error) {
return 0, errors.New("not implemented")
}
func recvmmsg(s uintptr, hs []mmsghdr, flags int) (int, error) {
return 0, errors.New("not implemented")
}
func sendmmsg(s uintptr, hs []mmsghdr, flags int) (int, error) {
return 0, errors.New("not implemented")
}

33
vendor/golang.org/x/net/internal/socket/sys_unix.go generated vendored Normal file
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@@ -0,0 +1,33 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build darwin dragonfly freebsd linux,!s390x,!386 netbsd openbsd
package socket
import (
"syscall"
"unsafe"
)
func getsockopt(s uintptr, level, name int, b []byte) (int, error) {
l := uint32(len(b))
_, _, errno := syscall.Syscall6(syscall.SYS_GETSOCKOPT, s, uintptr(level), uintptr(name), uintptr(unsafe.Pointer(&b[0])), uintptr(unsafe.Pointer(&l)), 0)
return int(l), errnoErr(errno)
}
func setsockopt(s uintptr, level, name int, b []byte) error {
_, _, errno := syscall.Syscall6(syscall.SYS_SETSOCKOPT, s, uintptr(level), uintptr(name), uintptr(unsafe.Pointer(&b[0])), uintptr(len(b)), 0)
return errnoErr(errno)
}
func recvmsg(s uintptr, h *msghdr, flags int) (int, error) {
n, _, errno := syscall.Syscall(syscall.SYS_RECVMSG, s, uintptr(unsafe.Pointer(h)), uintptr(flags))
return int(n), errnoErr(errno)
}
func sendmsg(s uintptr, h *msghdr, flags int) (int, error) {
n, _, errno := syscall.Syscall(syscall.SYS_SENDMSG, s, uintptr(unsafe.Pointer(h)), uintptr(flags))
return int(n), errnoErr(errno)
}

70
vendor/golang.org/x/net/internal/socket/sys_windows.go generated vendored Normal file
View File

@@ -0,0 +1,70 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package socket
import (
"errors"
"syscall"
"unsafe"
)
func probeProtocolStack() int {
var p uintptr
return int(unsafe.Sizeof(p))
}
const (
sysAF_UNSPEC = 0x0
sysAF_INET = 0x2
sysAF_INET6 = 0x17
sysSOCK_RAW = 0x3
)
type sockaddrInet struct {
Family uint16
Port uint16
Addr [4]byte /* in_addr */
Zero [8]uint8
}
type sockaddrInet6 struct {
Family uint16
Port uint16
Flowinfo uint32
Addr [16]byte /* in6_addr */
Scope_id uint32
}
const (
sizeofSockaddrInet = 0x10
sizeofSockaddrInet6 = 0x1c
)
func getsockopt(s uintptr, level, name int, b []byte) (int, error) {
l := uint32(len(b))
err := syscall.Getsockopt(syscall.Handle(s), int32(level), int32(name), (*byte)(unsafe.Pointer(&b[0])), (*int32)(unsafe.Pointer(&l)))
return int(l), err
}
func setsockopt(s uintptr, level, name int, b []byte) error {
return syscall.Setsockopt(syscall.Handle(s), int32(level), int32(name), (*byte)(unsafe.Pointer(&b[0])), int32(len(b)))
}
func recvmsg(s uintptr, h *msghdr, flags int) (int, error) {
return 0, errors.New("not implemented")
}
func sendmsg(s uintptr, h *msghdr, flags int) (int, error) {
return 0, errors.New("not implemented")
}
func recvmmsg(s uintptr, hs []mmsghdr, flags int) (int, error) {
return 0, errors.New("not implemented")
}
func sendmmsg(s uintptr, hs []mmsghdr, flags int) (int, error) {
return 0, errors.New("not implemented")
}

59
vendor/golang.org/x/net/internal/socket/zsys_darwin_386.go generated vendored Normal file
View File

@@ -0,0 +1,59 @@
// Created by cgo -godefs - DO NOT EDIT
// cgo -godefs defs_darwin.go
package socket
const (
sysAF_UNSPEC = 0x0
sysAF_INET = 0x2
sysAF_INET6 = 0x1e
sysSOCK_RAW = 0x3
)
type iovec struct {
Base *byte
Len uint32
}
type msghdr struct {
Name *byte
Namelen uint32
Iov *iovec
Iovlen int32
Control *byte
Controllen uint32
Flags int32
}
type cmsghdr struct {
Len uint32
Level int32
Type int32
}
type sockaddrInet struct {
Len uint8
Family uint8
Port uint16
Addr [4]byte /* in_addr */
Zero [8]int8
}
type sockaddrInet6 struct {
Len uint8
Family uint8
Port uint16
Flowinfo uint32
Addr [16]byte /* in6_addr */
Scope_id uint32
}
const (
sizeofIovec = 0x8
sizeofMsghdr = 0x1c
sizeofCmsghdr = 0xc
sizeofSockaddrInet = 0x10
sizeofSockaddrInet6 = 0x1c
)

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