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vendor: golang.org/x/crypto c1f2f97bffc9c53fc40a1a28a5b460094c0050d9 

full diff: 75b288015a...c1f2f97bff

relevant changes:

- pkcs12: document that we use the wrong PEM type
- pkcs12: drop PKCS#12 attributes with unknown OIDs
- ocsp: Improve documentation for ParseResponse and ParseResponseForCert

other changes (not in vendor);

- ssh: improve error message for KeyboardInteractiveChallenge
- ssh: remove slow unnecessary diffie-hellman-group-exchange primality check
- ssh/terminal: replace with a golang.org/x/term wrapper
    - Deprecates ssh/terminal in favor of golang.org/x/term
- ssh/terminal: add support for zos
- ssh/terminal: bump x/term dependency to fix js/nacl
- nacl/auth: use Size instead of KeySize for Sum output
- sha3: remove go:nocheckptr annotation

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This commit is contained in:
Sebastiaan van Stijn 2020-11-23 21:51:54 +01:00 committed by Tibor Vass
parent 3faad7acc5
commit 0e96d92567
40 changed files with 3161 additions and 1089 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
cli/command/swarm/unlock.go
View File

@ -13,7 +13,7 @@ import (
"github.com/docker/docker/api/types/swarm"
"github.com/pkg/errors"
"github.com/spf13/cobra"
"golang.org/x/crypto/ssh/terminal"
"golang.org/x/term"
)
func newUnlockCommand(dockerCli command.Cli) *cobra.Command {
@ -63,7 +63,7 @@ func runUnlock(dockerCli command.Cli) error {
func readKey(in *streams.In, prompt string) (string, error) {
if in.IsTerminal() {
fmt.Print(prompt)
dt, err := terminal.ReadPassword(int(in.FD()))
dt, err := term.ReadPassword(int(in.FD()))
fmt.Println()
return string(dt), err
}

3
vendor.conf
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@ -73,11 +73,12 @@ github.com/tonistiigi/units 6950e57a87eaf136bbe44ef2ec8e
github.com/xeipuuv/gojsonpointer 02993c407bfbf5f6dae44c4f4b1cf6a39b5fc5bb
github.com/xeipuuv/gojsonreference bd5ef7bd5415a7ac448318e64f11a24cd21e594b
github.com/xeipuuv/gojsonschema 82fcdeb203eb6ab2a67d0a623d9c19e5e5a64927 # v1.2.0
golang.org/x/crypto 75b288015ac94e66e3d6715fb68a9b41bf046ec2
golang.org/x/crypto c1f2f97bffc9c53fc40a1a28a5b460094c0050d9
golang.org/x/net ab34263943818b32f575efc978a3d24e80b04bd7
golang.org/x/oauth2 bf48bf16ab8d622ce64ec6ce98d2c98f916b6303
golang.org/x/sync cd5d95a43a6e21273425c7ae415d3df9ea832eeb
golang.org/x/sys eeed37f84f13f52d35e095e8023ba65671ff86a1
golang.org/x/term f5c789dd3221ff39d752ac54467d762de7cfbec6
golang.org/x/text 23ae387dee1f90d29a23c0e87ee0b46038fbed0e # v0.3.3
golang.org/x/time 555d28b269f0569763d25dbe1a237ae74c6bcc82
google.golang.org/genproto 3f1135a288c9a07e340ae8ba4cc6c7065a3160e8

3
vendor/golang.org/x/crypto/go.mod generated vendored
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@ -4,5 +4,6 @@ go 1.11
require (
golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3
golang.org/x/sys v0.0.0-20190412213103-97732733099d
golang.org/x/sys v0.0.0-20191026070338-33540a1f6037
golang.org/x/term v0.0.0-20201117132131-f5c789dd3221
)

2
vendor/golang.org/x/crypto/ssh/client_auth.go generated vendored
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@ -471,7 +471,7 @@ func (cb KeyboardInteractiveChallenge) auth(session []byte, user string, c packe
}
if len(answers) != len(prompts) {
return authFailure, nil, errors.New("ssh: not enough answers from keyboard-interactive callback")
return authFailure, nil, fmt.Errorf("ssh: incorrect number of answers from keyboard-interactive callback %d (expected %d)", len(answers), len(prompts))
}
responseLength := 1 + 4
for _, a := range answers {

13
vendor/golang.org/x/crypto/ssh/kex.go generated vendored
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@ -557,8 +557,6 @@ type dhGEXSHA struct {
hashFunc crypto.Hash
}
const numMRTests = 64
const (
dhGroupExchangeMinimumBits = 2048
dhGroupExchangePreferredBits = 2048
@ -602,15 +600,8 @@ func (gex dhGEXSHA) Client(c packetConn, randSource io.Reader, magics *handshake
gex.p = kexDHGexGroup.P
gex.g = kexDHGexGroup.G
// Check if p is safe by verifing that p and (p-1)/2 are primes
one := big.NewInt(1)
var pHalf = &big.Int{}
pHalf.Rsh(gex.p, 1)
if !gex.p.ProbablyPrime(numMRTests) || !pHalf.ProbablyPrime(numMRTests) {
return nil, fmt.Errorf("ssh: server provided gex p is not safe")
}
// Check if g is safe by verifing that g > 1 and g < p - 1
one := big.NewInt(1)
var pMinusOne = &big.Int{}
pMinusOne.Sub(gex.p, one)
if gex.g.Cmp(one) != 1 && gex.g.Cmp(pMinusOne) != -1 {
@ -618,6 +609,8 @@ func (gex dhGEXSHA) Client(c packetConn, randSource io.Reader, magics *handshake
}
// Send GexInit
var pHalf = &big.Int{}
pHalf.Rsh(gex.p, 1)
x, err := rand.Int(randSource, pHalf)
if err != nil {
return nil, err

989
vendor/golang.org/x/crypto/ssh/terminal/terminal.go generated vendored
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File diff suppressed because it is too large Load Diff

8
vendor/golang.org/x/sys/plan9/asm.s generated vendored Normal file
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@ -0,0 +1,8 @@
// 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.
#include "textflag.h"
TEXT ·use(SB),NOSPLIT,$0
RET

30
vendor/golang.org/x/sys/plan9/asm_plan9_386.s generated vendored Normal file
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@ -0,0 +1,30 @@
// Copyright 2009 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"
//
// System call support for 386, Plan 9
//
// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.
TEXT ·Syscall(SB),NOSPLIT,$0-32
JMP syscall·Syscall(SB)
TEXT ·Syscall6(SB),NOSPLIT,$0-44
JMP syscall·Syscall6(SB)
TEXT ·RawSyscall(SB),NOSPLIT,$0-28
JMP syscall·RawSyscall(SB)
TEXT ·RawSyscall6(SB),NOSPLIT,$0-40
JMP syscall·RawSyscall6(SB)
TEXT ·seek(SB),NOSPLIT,$0-36
JMP syscall·seek(SB)
TEXT ·exit(SB),NOSPLIT,$4-4
JMP syscall·exit(SB)

30
vendor/golang.org/x/sys/plan9/asm_plan9_amd64.s generated vendored Normal file
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@ -0,0 +1,30 @@
// Copyright 2009 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"
//
// System call support for amd64, Plan 9
//
// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.
TEXT ·Syscall(SB),NOSPLIT,$0-64
JMP syscall·Syscall(SB)
TEXT ·Syscall6(SB),NOSPLIT,$0-88
JMP syscall·Syscall6(SB)
TEXT ·RawSyscall(SB),NOSPLIT,$0-56
JMP syscall·RawSyscall(SB)
TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
JMP syscall·RawSyscall6(SB)
TEXT ·seek(SB),NOSPLIT,$0-56
JMP syscall·seek(SB)
TEXT ·exit(SB),NOSPLIT,$8-8
JMP syscall·exit(SB)

25
vendor/golang.org/x/sys/plan9/asm_plan9_arm.s generated vendored Normal file
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@ -0,0 +1,25 @@
// Copyright 2009 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"
// System call support for plan9 on arm
// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.
TEXT ·Syscall(SB),NOSPLIT,$0-32
JMP syscall·Syscall(SB)
TEXT ·Syscall6(SB),NOSPLIT,$0-44
JMP syscall·Syscall6(SB)
TEXT ·RawSyscall(SB),NOSPLIT,$0-28
JMP syscall·RawSyscall(SB)
TEXT ·RawSyscall6(SB),NOSPLIT,$0-40
JMP syscall·RawSyscall6(SB)
TEXT ·seek(SB),NOSPLIT,$0-36
JMP syscall·exit(SB)

70
vendor/golang.org/x/sys/plan9/const_plan9.go generated vendored Normal file
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@ -0,0 +1,70 @@
package plan9
// Plan 9 Constants
// Open modes
const (
O_RDONLY = 0
O_WRONLY = 1
O_RDWR = 2
O_TRUNC = 16
O_CLOEXEC = 32
O_EXCL = 0x1000
)
// Rfork flags
const (
RFNAMEG = 1 << 0
RFENVG = 1 << 1
RFFDG = 1 << 2
RFNOTEG = 1 << 3
RFPROC = 1 << 4
RFMEM = 1 << 5
RFNOWAIT = 1 << 6
RFCNAMEG = 1 << 10
RFCENVG = 1 << 11
RFCFDG = 1 << 12
RFREND = 1 << 13
RFNOMNT = 1 << 14
)
// Qid.Type bits
const (
QTDIR = 0x80
QTAPPEND = 0x40
QTEXCL = 0x20
QTMOUNT = 0x10
QTAUTH = 0x08
QTTMP = 0x04
QTFILE = 0x00
)
// Dir.Mode bits
const (
DMDIR = 0x80000000
DMAPPEND = 0x40000000
DMEXCL = 0x20000000
DMMOUNT = 0x10000000
DMAUTH = 0x08000000
DMTMP = 0x04000000
DMREAD = 0x4
DMWRITE = 0x2
DMEXEC = 0x1
)
const (
STATMAX = 65535
ERRMAX = 128
STATFIXLEN = 49
)
// Mount and bind flags
const (
MREPL = 0x0000
MBEFORE = 0x0001
MAFTER = 0x0002
MORDER = 0x0003
MCREATE = 0x0004
MCACHE = 0x0010
MMASK = 0x0017
)

212
vendor/golang.org/x/sys/plan9/dir_plan9.go generated vendored Normal file
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@ -0,0 +1,212 @@
// 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.
// Plan 9 directory marshalling. See intro(5).
package plan9
import "errors"
var (
ErrShortStat = errors.New("stat buffer too short")
ErrBadStat = errors.New("malformed stat buffer")
ErrBadName = errors.New("bad character in file name")
)
// A Qid represents a 9P server's unique identification for a file.
type Qid struct {
Path uint64 // the file server's unique identification for the file
Vers uint32 // version number for given Path
Type uint8 // the type of the file (plan9.QTDIR for example)
}
// A Dir contains the metadata for a file.
type Dir struct {
// system-modified data
Type uint16 // server type
Dev uint32 // server subtype
// file data
Qid Qid // unique id from server
Mode uint32 // permissions
Atime uint32 // last read time
Mtime uint32 // last write time
Length int64 // file length
Name string // last element of path
Uid string // owner name
Gid string // group name
Muid string // last modifier name
}
var nullDir = Dir{
Type: ^uint16(0),
Dev: ^uint32(0),
Qid: Qid{
Path: ^uint64(0),
Vers: ^uint32(0),
Type: ^uint8(0),
},
Mode: ^uint32(0),
Atime: ^uint32(0),
Mtime: ^uint32(0),
Length: ^int64(0),
}
// Null assigns special "don't touch" values to members of d to
// avoid modifying them during plan9.Wstat.
func (d *Dir) Null() { *d = nullDir }
// Marshal encodes a 9P stat message corresponding to d into b
//
// If there isn't enough space in b for a stat message, ErrShortStat is returned.
func (d *Dir) Marshal(b []byte) (n int, err error) {
n = STATFIXLEN + len(d.Name) + len(d.Uid) + len(d.Gid) + len(d.Muid)
if n > len(b) {
return n, ErrShortStat
}
for _, c := range d.Name {
if c == '/' {
return n, ErrBadName
}
}
b = pbit16(b, uint16(n)-2)
b = pbit16(b, d.Type)
b = pbit32(b, d.Dev)
b = pbit8(b, d.Qid.Type)
b = pbit32(b, d.Qid.Vers)
b = pbit64(b, d.Qid.Path)
b = pbit32(b, d.Mode)
b = pbit32(b, d.Atime)
b = pbit32(b, d.Mtime)
b = pbit64(b, uint64(d.Length))
b = pstring(b, d.Name)
b = pstring(b, d.Uid)
b = pstring(b, d.Gid)
b = pstring(b, d.Muid)
return n, nil
}
// UnmarshalDir decodes a single 9P stat message from b and returns the resulting Dir.
//
// If b is too small to hold a valid stat message, ErrShortStat is returned.
//
// If the stat message itself is invalid, ErrBadStat is returned.
func UnmarshalDir(b []byte) (*Dir, error) {
if len(b) < STATFIXLEN {
return nil, ErrShortStat
}
size, buf := gbit16(b)
if len(b) != int(size)+2 {
return nil, ErrBadStat
}
b = buf
var d Dir
d.Type, b = gbit16(b)
d.Dev, b = gbit32(b)
d.Qid.Type, b = gbit8(b)
d.Qid.Vers, b = gbit32(b)
d.Qid.Path, b = gbit64(b)
d.Mode, b = gbit32(b)
d.Atime, b = gbit32(b)
d.Mtime, b = gbit32(b)
n, b := gbit64(b)
d.Length = int64(n)
var ok bool
if d.Name, b, ok = gstring(b); !ok {
return nil, ErrBadStat
}
if d.Uid, b, ok = gstring(b); !ok {
return nil, ErrBadStat
}
if d.Gid, b, ok = gstring(b); !ok {
return nil, ErrBadStat
}
if d.Muid, b, ok = gstring(b); !ok {
return nil, ErrBadStat
}
return &d, nil
}
// pbit8 copies the 8-bit number v to b and returns the remaining slice of b.
func pbit8(b []byte, v uint8) []byte {
b[0] = byte(v)
return b[1:]
}
// pbit16 copies the 16-bit number v to b in little-endian order and returns the remaining slice of b.
func pbit16(b []byte, v uint16) []byte {
b[0] = byte(v)
b[1] = byte(v >> 8)
return b[2:]
}
// pbit32 copies the 32-bit number v to b in little-endian order and returns the remaining slice of b.
func pbit32(b []byte, v uint32) []byte {
b[0] = byte(v)
b[1] = byte(v >> 8)
b[2] = byte(v >> 16)
b[3] = byte(v >> 24)
return b[4:]
}
// pbit64 copies the 64-bit number v to b in little-endian order and returns the remaining slice of b.
func pbit64(b []byte, v uint64) []byte {
b[0] = byte(v)
b[1] = byte(v >> 8)
b[2] = byte(v >> 16)
b[3] = byte(v >> 24)
b[4] = byte(v >> 32)
b[5] = byte(v >> 40)
b[6] = byte(v >> 48)
b[7] = byte(v >> 56)
return b[8:]
}
// pstring copies the string s to b, prepending it with a 16-bit length in little-endian order, and
// returning the remaining slice of b..
func pstring(b []byte, s string) []byte {
b = pbit16(b, uint16(len(s)))
n := copy(b, s)
return b[n:]
}
// gbit8 reads an 8-bit number from b and returns it with the remaining slice of b.
func gbit8(b []byte) (uint8, []byte) {
return uint8(b[0]), b[1:]
}
// gbit16 reads a 16-bit number in little-endian order from b and returns it with the remaining slice of b.
func gbit16(b []byte) (uint16, []byte) {
return uint16(b[0]) | uint16(b[1])<<8, b[2:]
}
// gbit32 reads a 32-bit number in little-endian order from b and returns it with the remaining slice of b.
func gbit32(b []byte) (uint32, []byte) {
return uint32(b[0]) | uint32(b[1])<<8 | uint32(b[2])<<16 | uint32(b[3])<<24, b[4:]
}
// gbit64 reads a 64-bit number in little-endian order from b and returns it with the remaining slice of b.
func gbit64(b []byte) (uint64, []byte) {
lo := uint32(b[0]) | uint32(b[1])<<8 | uint32(b[2])<<16 | uint32(b[3])<<24
hi := uint32(b[4]) | uint32(b[5])<<8 | uint32(b[6])<<16 | uint32(b[7])<<24
return uint64(lo) | uint64(hi)<<32, b[8:]
}
// gstring reads a string from b, prefixed with a 16-bit length in little-endian order.
// It returns the string with the remaining slice of b and a boolean. If the length is
// greater than the number of bytes in b, the boolean will be false.
func gstring(b []byte) (string, []byte, bool) {
n, b := gbit16(b)
if int(n) > len(b) {
return "", b, false
}
return string(b[:n]), b[n:], true
}

31
vendor/golang.org/x/sys/plan9/env_plan9.go generated vendored Normal file
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@ -0,0 +1,31 @@
// 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.
// Plan 9 environment variables.
package plan9
import (
"syscall"
)
func Getenv(key string) (value string, found bool) {
return syscall.Getenv(key)
}
func Setenv(key, value string) error {
return syscall.Setenv(key, value)
}
func Clearenv() {
syscall.Clearenv()
}
func Environ() []string {
return syscall.Environ()
}
func Unsetenv(key string) error {
return syscall.Unsetenv(key)
}

50
vendor/golang.org/x/sys/plan9/errors_plan9.go generated vendored Normal file
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@ -0,0 +1,50 @@
// 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 plan9
import "syscall"
// Constants
const (
// Invented values to support what package os expects.
O_CREAT = 0x02000
O_APPEND = 0x00400
O_NOCTTY = 0x00000
O_NONBLOCK = 0x00000
O_SYNC = 0x00000
O_ASYNC = 0x00000
S_IFMT = 0x1f000
S_IFIFO = 0x1000
S_IFCHR = 0x2000
S_IFDIR = 0x4000
S_IFBLK = 0x6000
S_IFREG = 0x8000
S_IFLNK = 0xa000
S_IFSOCK = 0xc000
)
// Errors
var (
EINVAL = syscall.NewError("bad arg in system call")
ENOTDIR = syscall.NewError("not a directory")
EISDIR = syscall.NewError("file is a directory")
ENOENT = syscall.NewError("file does not exist")
EEXIST = syscall.NewError("file already exists")
EMFILE = syscall.NewError("no free file descriptors")
EIO = syscall.NewError("i/o error")
ENAMETOOLONG = syscall.NewError("file name too long")
EINTR = syscall.NewError("interrupted")
EPERM = syscall.NewError("permission denied")
EBUSY = syscall.NewError("no free devices")
ETIMEDOUT = syscall.NewError("connection timed out")
EPLAN9 = syscall.NewError("not supported by plan 9")
// The following errors do not correspond to any
// Plan 9 system messages. Invented to support
// what package os and others expect.
EACCES = syscall.NewError("access permission denied")
EAFNOSUPPORT = syscall.NewError("address family not supported by protocol")
)

21
vendor/golang.org/x/sys/plan9/pwd_go15_plan9.go generated vendored Normal file
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@ -0,0 +1,21 @@
// Copyright 2015 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 go1.5
package plan9
import "syscall"
func fixwd() {
syscall.Fixwd()
}
func Getwd() (wd string, err error) {
return syscall.Getwd()
}
func Chdir(path string) error {
return syscall.Chdir(path)
}

23
vendor/golang.org/x/sys/plan9/pwd_plan9.go generated vendored Normal file
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@ -0,0 +1,23 @@
// Copyright 2015 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 !go1.5
package plan9
func fixwd() {
}
func Getwd() (wd string, err error) {
fd, err := open(".", O_RDONLY)
if err != nil {
return "", err
}
defer Close(fd)
return Fd2path(fd)
}
func Chdir(path string) error {
return chdir(path)
}

30
vendor/golang.org/x/sys/plan9/race.go generated vendored Normal file
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@ -0,0 +1,30 @@
// 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 plan9,race
package plan9
import (
"runtime"
"unsafe"
)
const raceenabled = true
func raceAcquire(addr unsafe.Pointer) {
runtime.RaceAcquire(addr)
}
func raceReleaseMerge(addr unsafe.Pointer) {
runtime.RaceReleaseMerge(addr)
}
func raceReadRange(addr unsafe.Pointer, len int) {
runtime.RaceReadRange(addr, len)
}
func raceWriteRange(addr unsafe.Pointer, len int) {
runtime.RaceWriteRange(addr, len)
}

25
vendor/golang.org/x/sys/plan9/race0.go generated vendored Normal file
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@ -0,0 +1,25 @@
// 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 plan9,!race
package plan9
import (
"unsafe"
)
const raceenabled = false
func raceAcquire(addr unsafe.Pointer) {
}
func raceReleaseMerge(addr unsafe.Pointer) {
}
func raceReadRange(addr unsafe.Pointer, len int) {
}
func raceWriteRange(addr unsafe.Pointer, len int) {
}

22
vendor/golang.org/x/sys/plan9/str.go generated vendored Normal file
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@ -0,0 +1,22 @@
// Copyright 2009 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 plan9
package plan9
func itoa(val int) string { // do it here rather than with fmt to avoid dependency
if val < 0 {
return "-" + itoa(-val)
}
var buf [32]byte // big enough for int64
i := len(buf) - 1
for val >= 10 {
buf[i] = byte(val%10 + '0')
i--
val /= 10
}
buf[i] = byte(val + '0')
return string(buf[i:])
}

77
vendor/golang.org/x/sys/plan9/syscall.go generated vendored Normal file
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@ -0,0 +1,77 @@
// Copyright 2009 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 plan9
// Package plan9 contains an interface to the low-level operating system
// primitives. OS details vary depending on the underlying system, and
// by default, godoc will display the OS-specific documentation for the current
// system. If you want godoc to display documentation for another
// system, set $GOOS and $GOARCH to the desired system. For example, if
// you want to view documentation for freebsd/arm on linux/amd64, set $GOOS
// to freebsd and $GOARCH to arm.
//
// The primary use of this package is inside other packages that provide a more
// portable interface to the system, such as "os", "time" and "net". Use
// those packages rather than this one if you can.
//
// For details of the functions and data types in this package consult
// the manuals for the appropriate operating system.
//
// These calls return err == nil to indicate success; otherwise
// err represents an operating system error describing the failure and
// holds a value of type syscall.ErrorString.
package plan9 // import "golang.org/x/sys/plan9"
import "unsafe"
// ByteSliceFromString returns a NUL-terminated slice of bytes
// containing the text of s. If s contains a NUL byte at any
// location, it returns (nil, EINVAL).
func ByteSliceFromString(s string) ([]byte, error) {
for i := 0; i < len(s); i++ {
if s[i] == 0 {
return nil, EINVAL
}
}
a := make([]byte, len(s)+1)
copy(a, s)
return a, nil
}
// BytePtrFromString returns a pointer to a NUL-terminated array of
// bytes containing the text of s. If s contains a NUL byte at any
// location, it returns (nil, EINVAL).
func BytePtrFromString(s string) (*byte, error) {
a, err := ByteSliceFromString(s)
if err != nil {
return nil, err
}
return &a[0], nil
}
// Single-word zero for use when we need a valid pointer to 0 bytes.
// See mksyscall.pl.
var _zero uintptr
func (ts *Timespec) Unix() (sec int64, nsec int64) {
return int64(ts.Sec), int64(ts.Nsec)
}
func (tv *Timeval) Unix() (sec int64, nsec int64) {
return int64(tv.Sec), int64(tv.Usec) * 1000
}
func (ts *Timespec) Nano() int64 {
return int64(ts.Sec)*1e9 + int64(ts.Nsec)
}
func (tv *Timeval) Nano() int64 {
return int64(tv.Sec)*1e9 + int64(tv.Usec)*1000
}
// use is a no-op, but the compiler cannot see that it is.
// Calling use(p) ensures that p is kept live until that point.
//go:noescape
func use(p unsafe.Pointer)

349
vendor/golang.org/x/sys/plan9/syscall_plan9.go generated vendored Normal file
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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.
// Plan 9 system calls.
// This file is compiled as ordinary Go code,
// but it is also input to mksyscall,
// which parses the //sys lines and generates system call stubs.
// Note that sometimes we use a lowercase //sys name and
// wrap it in our own nicer implementation.
package plan9
import (
"bytes"
"syscall"
"unsafe"
)
// A Note is a string describing a process note.
// It implements the os.Signal interface.
type Note string
func (n Note) Signal() {}
func (n Note) String() string {
return string(n)
}
var (
Stdin = 0
Stdout = 1
Stderr = 2
)
// For testing: clients can set this flag to force
// creation of IPv6 sockets to return EAFNOSUPPORT.
var SocketDisableIPv6 bool
func Syscall(trap, a1, a2, a3 uintptr) (r1, r2 uintptr, err syscall.ErrorString)
func Syscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err syscall.ErrorString)
func RawSyscall(trap, a1, a2, a3 uintptr) (r1, r2, err uintptr)
func RawSyscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, err uintptr)
func atoi(b []byte) (n uint) {
n = 0
for i := 0; i < len(b); i++ {
n = n*10 + uint(b[i]-'0')
}
return
}
func cstring(s []byte) string {
i := bytes.IndexByte(s, 0)
if i == -1 {
i = len(s)
}
return string(s[:i])
}
func errstr() string {
var buf [ERRMAX]byte
RawSyscall(SYS_ERRSTR, uintptr(unsafe.Pointer(&buf[0])), uintptr(len(buf)), 0)
buf[len(buf)-1] = 0
return cstring(buf[:])
}
// Implemented in assembly to import from runtime.
func exit(code int)
func Exit(code int) { exit(code) }
func readnum(path string) (uint, error) {
var b [12]byte
fd, e := Open(path, O_RDONLY)
if e != nil {
return 0, e
}
defer Close(fd)
n, e := Pread(fd, b[:], 0)
if e != nil {
return 0, e
}
m := 0
for ; m < n && b[m] == ' '; m++ {
}
return atoi(b[m : n-1]), nil
}
func Getpid() (pid int) {
n, _ := readnum("#c/pid")
return int(n)
}
func Getppid() (ppid int) {
n, _ := readnum("#c/ppid")
return int(n)
}
func Read(fd int, p []byte) (n int, err error) {
return Pread(fd, p, -1)
}
func Write(fd int, p []byte) (n int, err error) {
return Pwrite(fd, p, -1)
}
var ioSync int64
//sys fd2path(fd int, buf []byte) (err error)
func Fd2path(fd int) (path string, err error) {
var buf [512]byte
e := fd2path(fd, buf[:])
if e != nil {
return "", e
}
return cstring(buf[:]), nil
}
//sys pipe(p *[2]int32) (err error)
func Pipe(p []int) (err error) {
if len(p) != 2 {
return syscall.ErrorString("bad arg in system call")
}
var pp [2]int32
err = pipe(&pp)
p[0] = int(pp[0])
p[1] = int(pp[1])
return
}
// Underlying system call writes to newoffset via pointer.
// Implemented in assembly to avoid allocation.
func seek(placeholder uintptr, fd int, offset int64, whence int) (newoffset int64, err string)
func Seek(fd int, offset int64, whence int) (newoffset int64, err error) {
newoffset, e := seek(0, fd, offset, whence)
if newoffset == -1 {
err = syscall.ErrorString(e)
}
return
}
func Mkdir(path string, mode uint32) (err error) {
fd, err := Create(path, O_RDONLY, DMDIR|mode)
if fd != -1 {
Close(fd)
}
return
}
type Waitmsg struct {
Pid int
Time [3]uint32
Msg string
}
func (w Waitmsg) Exited() bool { return true }
func (w Waitmsg) Signaled() bool { return false }
func (w Waitmsg) ExitStatus() int {
if len(w.Msg) == 0 {
// a normal exit returns no message
return 0
}
return 1
}
//sys await(s []byte) (n int, err error)
func Await(w *Waitmsg) (err error) {
var buf [512]byte
var f [5][]byte
n, err := await(buf[:])
if err != nil || w == nil {
return
}
nf := 0
p := 0
for i := 0; i < n && nf < len(f)-1; i++ {
if buf[i] == ' ' {
f[nf] = buf[p:i]
p = i + 1
nf++
}
}
f[nf] = buf[p:]
nf++
if nf != len(f) {
return syscall.ErrorString("invalid wait message")
}
w.Pid = int(atoi(f[0]))
w.Time[0] = uint32(atoi(f[1]))
w.Time[1] = uint32(atoi(f[2]))
w.Time[2] = uint32(atoi(f[3]))
w.Msg = cstring(f[4])
if w.Msg == "''" {
// await() returns '' for no error
w.Msg = ""
}
return
}
func Unmount(name, old string) (err error) {
fixwd()
oldp, err := BytePtrFromString(old)
if err != nil {
return err
}
oldptr := uintptr(unsafe.Pointer(oldp))
var r0 uintptr
var e syscall.ErrorString
// bind(2) man page: If name is zero, everything bound or mounted upon old is unbound or unmounted.
if name == "" {
r0, _, e = Syscall(SYS_UNMOUNT, _zero, oldptr, 0)
} else {
namep, err := BytePtrFromString(name)
if err != nil {
return err
}
r0, _, e = Syscall(SYS_UNMOUNT, uintptr(unsafe.Pointer(namep)), oldptr, 0)
}
if int32(r0) == -1 {
err = e
}
return
}
func Fchdir(fd int) (err error) {
path, err := Fd2path(fd)
if err != nil {
return
}
return Chdir(path)
}
type Timespec struct {
Sec int32
Nsec int32
}
type Timeval struct {
Sec int32
Usec int32
}
func NsecToTimeval(nsec int64) (tv Timeval) {
nsec += 999 // round up to microsecond
tv.Usec = int32(nsec % 1e9 / 1e3)
tv.Sec = int32(nsec / 1e9)
return
}
func nsec() int64 {
var scratch int64
r0, _, _ := Syscall(SYS_NSEC, uintptr(unsafe.Pointer(&scratch)), 0, 0)
// TODO(aram): remove hack after I fix _nsec in the pc64 kernel.
if r0 == 0 {
return scratch
}
return int64(r0)
}
func Gettimeofday(tv *Timeval) error {
nsec := nsec()
*tv = NsecToTimeval(nsec)
return nil
}
func Getpagesize() int { return 0x1000 }
func Getegid() (egid int) { return -1 }
func Geteuid() (euid int) { return -1 }
func Getgid() (gid int) { return -1 }
func Getuid() (uid int) { return -1 }
func Getgroups() (gids []int, err error) {
return make([]int, 0), nil
}
//sys open(path string, mode int) (fd int, err error)
func Open(path string, mode int) (fd int, err error) {
fixwd()
return open(path, mode)
}
//sys create(path string, mode int, perm uint32) (fd int, err error)
func Create(path string, mode int, perm uint32) (fd int, err error) {
fixwd()
return create(path, mode, perm)
}
//sys remove(path string) (err error)
func Remove(path string) error {
fixwd()
return remove(path)
}
//sys stat(path string, edir []byte) (n int, err error)
func Stat(path string, edir []byte) (n int, err error) {
fixwd()
return stat(path, edir)
}
//sys bind(name string, old string, flag int) (err error)
func Bind(name string, old string, flag int) (err error) {
fixwd()
return bind(name, old, flag)
}
//sys mount(fd int, afd int, old string, flag int, aname string) (err error)
func Mount(fd int, afd int, old string, flag int, aname string) (err error) {
fixwd()
return mount(fd, afd, old, flag, aname)
}
//sys wstat(path string, edir []byte) (err error)
func Wstat(path string, edir []byte) (err error) {
fixwd()
return wstat(path, edir)
}
//sys chdir(path string) (err error)
//sys Dup(oldfd int, newfd int) (fd int, err error)
//sys Pread(fd int, p []byte, offset int64) (n int, err error)
//sys Pwrite(fd int, p []byte, offset int64) (n int, err error)
//sys Close(fd int) (err error)
//sys Fstat(fd int, edir []byte) (n int, err error)
//sys Fwstat(fd int, edir []byte) (err error)

284
vendor/golang.org/x/sys/plan9/zsyscall_plan9_386.go generated vendored Normal file
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// go run mksyscall.go -l32 -plan9 -tags plan9,386 syscall_plan9.go
// Code generated by the command above; see README.md. DO NOT EDIT.
// +build plan9,386
package plan9
import "unsafe"
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func fd2path(fd int, buf []byte) (err error) {
var _p0 unsafe.Pointer
if len(buf) > 0 {
_p0 = unsafe.Pointer(&buf[0])
} else {
_p0 = unsafe.Pointer(&_zero)
}
r0, _, e1 := Syscall(SYS_FD2PATH, uintptr(fd), uintptr(_p0), uintptr(len(buf)))
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func pipe(p *[2]int32) (err error) {
r0, _, e1 := Syscall(SYS_PIPE, uintptr(unsafe.Pointer(p)), 0, 0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func await(s []byte) (n int, err error) {
var _p0 unsafe.Pointer
if len(s) > 0 {
_p0 = unsafe.Pointer(&s[0])
} else {
_p0 = unsafe.Pointer(&_zero)
}
r0, _, e1 := Syscall(SYS_AWAIT, uintptr(_p0), uintptr(len(s)), 0)
n = int(r0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func open(path string, mode int) (fd int, err error) {
var _p0 *byte
_p0, err = BytePtrFromString(path)
if err != nil {
return
}
r0, _, e1 := Syscall(SYS_OPEN, uintptr(unsafe.Pointer(_p0)), uintptr(mode), 0)
fd = int(r0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func create(path string, mode int, perm uint32) (fd int, err error) {
var _p0 *byte
_p0, err = BytePtrFromString(path)
if err != nil {
return
}
r0, _, e1 := Syscall(SYS_CREATE, uintptr(unsafe.Pointer(_p0)), uintptr(mode), uintptr(perm))
fd = int(r0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func remove(path string) (err error) {
var _p0 *byte
_p0, err = BytePtrFromString(path)
if err != nil {
return
}
r0, _, e1 := Syscall(SYS_REMOVE, uintptr(unsafe.Pointer(_p0)), 0, 0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func stat(path string, edir []byte) (n int, err error) {
var _p0 *byte
_p0, err = BytePtrFromString(path)
if err != nil {
return
}
var _p1 unsafe.Pointer
if len(edir) > 0 {
_p1 = unsafe.Pointer(&edir[0])
} else {
_p1 = unsafe.Pointer(&_zero)
}
r0, _, e1 := Syscall(SYS_STAT, uintptr(unsafe.Pointer(_p0)), uintptr(_p1), uintptr(len(edir)))
n = int(r0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func bind(name string, old string, flag int) (err error) {
var _p0 *byte
_p0, err = BytePtrFromString(name)
if err != nil {
return
}
var _p1 *byte
_p1, err = BytePtrFromString(old)
if err != nil {
return
}
r0, _, e1 := Syscall(SYS_BIND, uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(_p1)), uintptr(flag))
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func mount(fd int, afd int, old string, flag int, aname string) (err error) {
var _p0 *byte
_p0, err = BytePtrFromString(old)
if err != nil {
return
}
var _p1 *byte
_p1, err = BytePtrFromString(aname)
if err != nil {
return
}
r0, _, e1 := Syscall6(SYS_MOUNT, uintptr(fd), uintptr(afd), uintptr(unsafe.Pointer(_p0)), uintptr(flag), uintptr(unsafe.Pointer(_p1)), 0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func wstat(path string, edir []byte) (err error) {
var _p0 *byte
_p0, err = BytePtrFromString(path)
if err != nil {
return
}
var _p1 unsafe.Pointer
if len(edir) > 0 {
_p1 = unsafe.Pointer(&edir[0])
} else {
_p1 = unsafe.Pointer(&_zero)
}
r0, _, e1 := Syscall(SYS_WSTAT, uintptr(unsafe.Pointer(_p0)), uintptr(_p1), uintptr(len(edir)))
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func chdir(path string) (err error) {
var _p0 *byte
_p0, err = BytePtrFromString(path)
if err != nil {
return
}
r0, _, e1 := Syscall(SYS_CHDIR, uintptr(unsafe.Pointer(_p0)), 0, 0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Dup(oldfd int, newfd int) (fd int, err error) {
r0, _, e1 := Syscall(SYS_DUP, uintptr(oldfd), uintptr(newfd), 0)
fd = int(r0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pread(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])
} else {
_p0 = unsafe.Pointer(&_zero)
}
r0, _, e1 := Syscall6(SYS_PREAD, uintptr(fd), uintptr(_p0), uintptr(len(p)), uintptr(offset), uintptr(offset>>32), 0)
n = int(r0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pwrite(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])
} else {
_p0 = unsafe.Pointer(&_zero)
}
r0, _, e1 := Syscall6(SYS_PWRITE, uintptr(fd), uintptr(_p0), uintptr(len(p)), uintptr(offset), uintptr(offset>>32), 0)
n = int(r0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Close(fd int) (err error) {
r0, _, e1 := Syscall(SYS_CLOSE, uintptr(fd), 0, 0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Fstat(fd int, edir []byte) (n int, err error) {
var _p0 unsafe.Pointer
if len(edir) > 0 {
_p0 = unsafe.Pointer(&edir[0])
} else {
_p0 = unsafe.Pointer(&_zero)
}
r0, _, e1 := Syscall(SYS_FSTAT, uintptr(fd), uintptr(_p0), uintptr(len(edir)))
n = int(r0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Fwstat(fd int, edir []byte) (err error) {
var _p0 unsafe.Pointer
if len(edir) > 0 {
_p0 = unsafe.Pointer(&edir[0])
} else {
_p0 = unsafe.Pointer(&_zero)
}
r0, _, e1 := Syscall(SYS_FWSTAT, uintptr(fd), uintptr(_p0), uintptr(len(edir)))
if int32(r0) == -1 {
err = e1
}
return
}

284
vendor/golang.org/x/sys/plan9/zsyscall_plan9_amd64.go generated vendored Normal file
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// go run mksyscall.go -l32 -plan9 -tags plan9,amd64 syscall_plan9.go
// Code generated by the command above; see README.md. DO NOT EDIT.
// +build plan9,amd64
package plan9
import "unsafe"
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func fd2path(fd int, buf []byte) (err error) {
var _p0 unsafe.Pointer
if len(buf) > 0 {
_p0 = unsafe.Pointer(&buf[0])
} else {
_p0 = unsafe.Pointer(&_zero)
}
r0, _, e1 := Syscall(SYS_FD2PATH, uintptr(fd), uintptr(_p0), uintptr(len(buf)))
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func pipe(p *[2]int32) (err error) {
r0, _, e1 := Syscall(SYS_PIPE, uintptr(unsafe.Pointer(p)), 0, 0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func await(s []byte) (n int, err error) {
var _p0 unsafe.Pointer
if len(s) > 0 {
_p0 = unsafe.Pointer(&s[0])
} else {
_p0 = unsafe.Pointer(&_zero)
}
r0, _, e1 := Syscall(SYS_AWAIT, uintptr(_p0), uintptr(len(s)), 0)
n = int(r0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func open(path string, mode int) (fd int, err error) {
var _p0 *byte
_p0, err = BytePtrFromString(path)
if err != nil {
return
}
r0, _, e1 := Syscall(SYS_OPEN, uintptr(unsafe.Pointer(_p0)), uintptr(mode), 0)
fd = int(r0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func create(path string, mode int, perm uint32) (fd int, err error) {
var _p0 *byte
_p0, err = BytePtrFromString(path)
if err != nil {
return
}
r0, _, e1 := Syscall(SYS_CREATE, uintptr(unsafe.Pointer(_p0)), uintptr(mode), uintptr(perm))
fd = int(r0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func remove(path string) (err error) {
var _p0 *byte
_p0, err = BytePtrFromString(path)
if err != nil {
return
}
r0, _, e1 := Syscall(SYS_REMOVE, uintptr(unsafe.Pointer(_p0)), 0, 0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func stat(path string, edir []byte) (n int, err error) {
var _p0 *byte
_p0, err = BytePtrFromString(path)
if err != nil {
return
}
var _p1 unsafe.Pointer
if len(edir) > 0 {
_p1 = unsafe.Pointer(&edir[0])
} else {
_p1 = unsafe.Pointer(&_zero)
}
r0, _, e1 := Syscall(SYS_STAT, uintptr(unsafe.Pointer(_p0)), uintptr(_p1), uintptr(len(edir)))
n = int(r0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func bind(name string, old string, flag int) (err error) {
var _p0 *byte
_p0, err = BytePtrFromString(name)
if err != nil {
return
}
var _p1 *byte
_p1, err = BytePtrFromString(old)
if err != nil {
return
}
r0, _, e1 := Syscall(SYS_BIND, uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(_p1)), uintptr(flag))
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func mount(fd int, afd int, old string, flag int, aname string) (err error) {
var _p0 *byte
_p0, err = BytePtrFromString(old)
if err != nil {
return
}
var _p1 *byte
_p1, err = BytePtrFromString(aname)
if err != nil {
return
}
r0, _, e1 := Syscall6(SYS_MOUNT, uintptr(fd), uintptr(afd), uintptr(unsafe.Pointer(_p0)), uintptr(flag), uintptr(unsafe.Pointer(_p1)), 0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func wstat(path string, edir []byte) (err error) {
var _p0 *byte
_p0, err = BytePtrFromString(path)
if err != nil {
return
}
var _p1 unsafe.Pointer
if len(edir) > 0 {
_p1 = unsafe.Pointer(&edir[0])
} else {
_p1 = unsafe.Pointer(&_zero)
}
r0, _, e1 := Syscall(SYS_WSTAT, uintptr(unsafe.Pointer(_p0)), uintptr(_p1), uintptr(len(edir)))
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func chdir(path string) (err error) {
var _p0 *byte
_p0, err = BytePtrFromString(path)
if err != nil {
return
}
r0, _, e1 := Syscall(SYS_CHDIR, uintptr(unsafe.Pointer(_p0)), 0, 0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Dup(oldfd int, newfd int) (fd int, err error) {
r0, _, e1 := Syscall(SYS_DUP, uintptr(oldfd), uintptr(newfd), 0)
fd = int(r0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pread(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])
} else {
_p0 = unsafe.Pointer(&_zero)
}
r0, _, e1 := Syscall6(SYS_PREAD, uintptr(fd), uintptr(_p0), uintptr(len(p)), uintptr(offset), uintptr(offset>>32), 0)
n = int(r0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pwrite(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])
} else {
_p0 = unsafe.Pointer(&_zero)
}
r0, _, e1 := Syscall6(SYS_PWRITE, uintptr(fd), uintptr(_p0), uintptr(len(p)), uintptr(offset), uintptr(offset>>32), 0)
n = int(r0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Close(fd int) (err error) {
r0, _, e1 := Syscall(SYS_CLOSE, uintptr(fd), 0, 0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Fstat(fd int, edir []byte) (n int, err error) {
var _p0 unsafe.Pointer
if len(edir) > 0 {
_p0 = unsafe.Pointer(&edir[0])
} else {
_p0 = unsafe.Pointer(&_zero)
}
r0, _, e1 := Syscall(SYS_FSTAT, uintptr(fd), uintptr(_p0), uintptr(len(edir)))
n = int(r0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Fwstat(fd int, edir []byte) (err error) {
var _p0 unsafe.Pointer
if len(edir) > 0 {
_p0 = unsafe.Pointer(&edir[0])
} else {
_p0 = unsafe.Pointer(&_zero)
}
r0, _, e1 := Syscall(SYS_FWSTAT, uintptr(fd), uintptr(_p0), uintptr(len(edir)))
if int32(r0) == -1 {
err = e1
}
return
}

284
vendor/golang.org/x/sys/plan9/zsyscall_plan9_arm.go generated vendored Normal file
View File

@ -0,0 +1,284 @@
// go run mksyscall.go -l32 -plan9 -tags plan9,arm syscall_plan9.go
// Code generated by the command above; see README.md. DO NOT EDIT.
// +build plan9,arm
package plan9
import "unsafe"
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func fd2path(fd int, buf []byte) (err error) {
var _p0 unsafe.Pointer
if len(buf) > 0 {
_p0 = unsafe.Pointer(&buf[0])
} else {
_p0 = unsafe.Pointer(&_zero)
}
r0, _, e1 := Syscall(SYS_FD2PATH, uintptr(fd), uintptr(_p0), uintptr(len(buf)))
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func pipe(p *[2]int32) (err error) {
r0, _, e1 := Syscall(SYS_PIPE, uintptr(unsafe.Pointer(p)), 0, 0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func await(s []byte) (n int, err error) {
var _p0 unsafe.Pointer
if len(s) > 0 {
_p0 = unsafe.Pointer(&s[0])
} else {
_p0 = unsafe.Pointer(&_zero)
}
r0, _, e1 := Syscall(SYS_AWAIT, uintptr(_p0), uintptr(len(s)), 0)
n = int(r0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func open(path string, mode int) (fd int, err error) {
var _p0 *byte
_p0, err = BytePtrFromString(path)
if err != nil {
return
}
r0, _, e1 := Syscall(SYS_OPEN, uintptr(unsafe.Pointer(_p0)), uintptr(mode), 0)
fd = int(r0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func create(path string, mode int, perm uint32) (fd int, err error) {
var _p0 *byte
_p0, err = BytePtrFromString(path)
if err != nil {
return
}
r0, _, e1 := Syscall(SYS_CREATE, uintptr(unsafe.Pointer(_p0)), uintptr(mode), uintptr(perm))
fd = int(r0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func remove(path string) (err error) {
var _p0 *byte
_p0, err = BytePtrFromString(path)
if err != nil {
return
}
r0, _, e1 := Syscall(SYS_REMOVE, uintptr(unsafe.Pointer(_p0)), 0, 0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func stat(path string, edir []byte) (n int, err error) {
var _p0 *byte
_p0, err = BytePtrFromString(path)
if err != nil {
return
}
var _p1 unsafe.Pointer
if len(edir) > 0 {
_p1 = unsafe.Pointer(&edir[0])
} else {
_p1 = unsafe.Pointer(&_zero)
}
r0, _, e1 := Syscall(SYS_STAT, uintptr(unsafe.Pointer(_p0)), uintptr(_p1), uintptr(len(edir)))
n = int(r0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func bind(name string, old string, flag int) (err error) {
var _p0 *byte
_p0, err = BytePtrFromString(name)
if err != nil {
return
}
var _p1 *byte
_p1, err = BytePtrFromString(old)
if err != nil {
return
}
r0, _, e1 := Syscall(SYS_BIND, uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(_p1)), uintptr(flag))
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func mount(fd int, afd int, old string, flag int, aname string) (err error) {
var _p0 *byte
_p0, err = BytePtrFromString(old)
if err != nil {
return
}
var _p1 *byte
_p1, err = BytePtrFromString(aname)
if err != nil {
return
}
r0, _, e1 := Syscall6(SYS_MOUNT, uintptr(fd), uintptr(afd), uintptr(unsafe.Pointer(_p0)), uintptr(flag), uintptr(unsafe.Pointer(_p1)), 0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func wstat(path string, edir []byte) (err error) {
var _p0 *byte
_p0, err = BytePtrFromString(path)
if err != nil {
return
}
var _p1 unsafe.Pointer
if len(edir) > 0 {
_p1 = unsafe.Pointer(&edir[0])
} else {
_p1 = unsafe.Pointer(&_zero)
}
r0, _, e1 := Syscall(SYS_WSTAT, uintptr(unsafe.Pointer(_p0)), uintptr(_p1), uintptr(len(edir)))
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func chdir(path string) (err error) {
var _p0 *byte
_p0, err = BytePtrFromString(path)
if err != nil {
return
}
r0, _, e1 := Syscall(SYS_CHDIR, uintptr(unsafe.Pointer(_p0)), 0, 0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Dup(oldfd int, newfd int) (fd int, err error) {
r0, _, e1 := Syscall(SYS_DUP, uintptr(oldfd), uintptr(newfd), 0)
fd = int(r0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pread(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])
} else {
_p0 = unsafe.Pointer(&_zero)
}
r0, _, e1 := Syscall6(SYS_PREAD, uintptr(fd), uintptr(_p0), uintptr(len(p)), uintptr(offset), uintptr(offset>>32), 0)
n = int(r0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pwrite(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])
} else {
_p0 = unsafe.Pointer(&_zero)
}
r0, _, e1 := Syscall6(SYS_PWRITE, uintptr(fd), uintptr(_p0), uintptr(len(p)), uintptr(offset), uintptr(offset>>32), 0)
n = int(r0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Close(fd int) (err error) {
r0, _, e1 := Syscall(SYS_CLOSE, uintptr(fd), 0, 0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Fstat(fd int, edir []byte) (n int, err error) {
var _p0 unsafe.Pointer
if len(edir) > 0 {
_p0 = unsafe.Pointer(&edir[0])
} else {
_p0 = unsafe.Pointer(&_zero)
}
r0, _, e1 := Syscall(SYS_FSTAT, uintptr(fd), uintptr(_p0), uintptr(len(edir)))
n = int(r0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Fwstat(fd int, edir []byte) (err error) {
var _p0 unsafe.Pointer
if len(edir) > 0 {
_p0 = unsafe.Pointer(&edir[0])
} else {
_p0 = unsafe.Pointer(&_zero)
}
r0, _, e1 := Syscall(SYS_FWSTAT, uintptr(fd), uintptr(_p0), uintptr(len(edir)))
if int32(r0) == -1 {
err = e1
}
return
}

49
vendor/golang.org/x/sys/plan9/zsysnum_plan9.go generated vendored Normal file
View File

@ -0,0 +1,49 @@
// mksysnum_plan9.sh /opt/plan9/sys/src/libc/9syscall/sys.h
// MACHINE GENERATED BY THE ABOVE COMMAND; DO NOT EDIT
package plan9
const (
SYS_SYSR1 = 0
SYS_BIND = 2
SYS_CHDIR = 3
SYS_CLOSE = 4
SYS_DUP = 5
SYS_ALARM = 6
SYS_EXEC = 7
SYS_EXITS = 8
SYS_FAUTH = 10
SYS_SEGBRK = 12
SYS_OPEN = 14
SYS_OSEEK = 16
SYS_SLEEP = 17
SYS_RFORK = 19
SYS_PIPE = 21
SYS_CREATE = 22
SYS_FD2PATH = 23
SYS_BRK_ = 24
SYS_REMOVE = 25
SYS_NOTIFY = 28
SYS_NOTED = 29
SYS_SEGATTACH = 30
SYS_SEGDETACH = 31
SYS_SEGFREE = 32
SYS_SEGFLUSH = 33
SYS_RENDEZVOUS = 34
SYS_UNMOUNT = 35
SYS_SEMACQUIRE = 37
SYS_SEMRELEASE = 38
SYS_SEEK = 39
SYS_FVERSION = 40
SYS_ERRSTR = 41
SYS_STAT = 42
SYS_FSTAT = 43
SYS_WSTAT = 44
SYS_FWSTAT = 45
SYS_MOUNT = 46
SYS_AWAIT = 47
SYS_PREAD = 50
SYS_PWRITE = 51
SYS_TSEMACQUIRE = 52
SYS_NSEC = 53
)

27
vendor/golang.org/x/term/LICENSE generated vendored Normal file
View File

@ -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.

22
vendor/golang.org/x/term/PATENTS generated vendored Normal file
View File

@ -0,0 +1,22 @@
Additional IP Rights Grant (Patents)
"This implementation" means the copyrightable works distributed by
Google as part of the Go project.
Google hereby grants to You a perpetual, worldwide, non-exclusive,
no-charge, royalty-free, irrevocable (except as stated in this section)
patent license to make, have made, use, offer to sell, sell, import,
transfer and otherwise run, modify and propagate the contents of this
implementation of Go, where such license applies only to those patent
claims, both currently owned or controlled by Google and acquired in
the future, licensable by Google that are necessarily infringed by this
implementation of Go. This grant does not include claims that would be
infringed only as a consequence of further modification of this
implementation. If you or your agent or exclusive licensee institute or
order or agree to the institution of patent litigation against any
entity (including a cross-claim or counterclaim in a lawsuit) alleging
that this implementation of Go or any code incorporated within this
implementation of Go constitutes direct or contributory patent
infringement, or inducement of patent infringement, then any patent
rights granted to you under this License for this implementation of Go
shall terminate as of the date such litigation is filed.

17
vendor/golang.org/x/term/README.md generated vendored Normal file
View File

@ -0,0 +1,17 @@
# Go terminal/console support
This repository provides Go terminal and console support packages.
## Download/Install
The easiest way to install is to run `go get -u golang.org/x/term`. You can
also manually git clone the repository to `$GOPATH/src/golang.org/x/term`.
## Report Issues / Send Patches
This repository uses Gerrit for code changes. To learn how to submit changes to
this repository, see https://golang.org/doc/contribute.html.
The main issue tracker for the term repository is located at
https://github.com/golang/go/issues. Prefix your issue with "x/term:" in the
subject line, so it is easy to find.

5
vendor/golang.org/x/term/go.mod generated vendored Normal file
View File

@ -0,0 +1,5 @@
module golang.org/x/term
go 1.11
require golang.org/x/sys v0.0.0-20191026070338-33540a1f6037

36
vendor/golang.org/x/crypto/ssh/terminal/util_plan9.go → vendor/golang.org/x/term/term.go generated vendored
View File

@ -1,8 +1,8 @@
// Copyright 2016 The Go Authors. All rights reserved.
// Copyright 2019 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 terminal provides support functions for dealing with terminals, as
// Package term provides support functions for dealing with terminals, as
// commonly found on UNIX systems.
//
// Putting a terminal into raw mode is the most common requirement:
@ -12,47 +12,47 @@
// panic(err)
// }
// defer terminal.Restore(0, oldState)
package terminal
package term
import (
"fmt"
"runtime"
)
type State struct{}
// State contains the state of a terminal.
type State struct {
state
}
// IsTerminal returns whether the given file descriptor is a terminal.
func IsTerminal(fd int) bool {
return false
return isTerminal(fd)
}
// MakeRaw put the terminal connected to the given file descriptor into raw
// MakeRaw puts the terminal connected to the given file descriptor into raw
// mode and returns the previous state of the terminal so that it can be
// restored.
func MakeRaw(fd int) (*State, error) {
return nil, fmt.Errorf("terminal: MakeRaw not implemented on %s/%s", runtime.GOOS, runtime.GOARCH)
return makeRaw(fd)
}
// GetState returns the current state of a terminal which may be useful to
// restore the terminal after a signal.
func GetState(fd int) (*State, error) {
return nil, fmt.Errorf("terminal: GetState not implemented on %s/%s", runtime.GOOS, runtime.GOARCH)
return getState(fd)
}
// Restore restores the terminal connected to the given file descriptor to a
// previous state.
func Restore(fd int, state *State) error {
return fmt.Errorf("terminal: Restore not implemented on %s/%s", runtime.GOOS, runtime.GOARCH)
func Restore(fd int, oldState *State) error {
return restore(fd, oldState)
}
// GetSize returns the dimensions of the given terminal.
// GetSize returns the visible dimensions of the given terminal.
//
// These dimensions don't include any scrollback buffer height.
func GetSize(fd int) (width, height int, err error) {
return 0, 0, fmt.Errorf("terminal: GetSize not implemented on %s/%s", runtime.GOOS, runtime.GOARCH)
return getSize(fd)
}
// ReadPassword reads a line of input from a terminal without local echo. This
// is commonly used for inputting passwords and other sensitive data. The slice
// returned does not include the \n.
func ReadPassword(fd int) ([]byte, error) {
return nil, fmt.Errorf("terminal: ReadPassword not implemented on %s/%s", runtime.GOOS, runtime.GOARCH)
return readPassword(fd)
}

42
vendor/golang.org/x/term/term_plan9.go generated vendored Normal file
View File

@ -0,0 +1,42 @@
// Copyright 2019 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 term
import (
"fmt"
"runtime"
"golang.org/x/sys/plan9"
)
type state struct{}
func isTerminal(fd int) bool {
path, err := plan9.Fd2path(fd)
if err != nil {
return false
}
return path == "/dev/cons" || path == "/mnt/term/dev/cons"
}
func makeRaw(fd int) (*State, error) {
return nil, fmt.Errorf("terminal: MakeRaw not implemented on %s/%s", runtime.GOOS, runtime.GOARCH)
}
func getState(fd int) (*State, error) {
return nil, fmt.Errorf("terminal: GetState not implemented on %s/%s", runtime.GOOS, runtime.GOARCH)
}
func restore(fd int, state *State) error {
return fmt.Errorf("terminal: Restore not implemented on %s/%s", runtime.GOOS, runtime.GOARCH)
}
func getSize(fd int) (width, height int, err error) {
return 0, 0, fmt.Errorf("terminal: GetSize not implemented on %s/%s", runtime.GOOS, runtime.GOARCH)
}
func readPassword(fd int) ([]byte, error) {
return nil, fmt.Errorf("terminal: ReadPassword not implemented on %s/%s", runtime.GOOS, runtime.GOARCH)
}

41
vendor/golang.org/x/crypto/ssh/terminal/util_solaris.go → vendor/golang.org/x/term/term_solaris.go generated vendored
View File

@ -1,32 +1,27 @@
// Copyright 2015 The Go Authors. All rights reserved.
// Copyright 2019 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 solaris
package terminal // import "golang.org/x/crypto/ssh/terminal"
package term
import (
"golang.org/x/sys/unix"
"io"
"syscall"
"golang.org/x/sys/unix"
)
// State contains the state of a terminal.
type State struct {
type state struct {
termios unix.Termios
}
// IsTerminal returns whether the given file descriptor is a terminal.
func IsTerminal(fd int) bool {
func isTerminal(fd int) bool {
_, err := unix.IoctlGetTermio(fd, unix.TCGETA)
return err == nil
}
// ReadPassword reads a line of input from a terminal without local echo. This
// is commonly used for inputting passwords and other sensitive data. The slice
// returned does not include the \n.
func ReadPassword(fd int) ([]byte, error) {
func readPassword(fd int) ([]byte, error) {
// see also: http://src.illumos.org/source/xref/illumos-gate/usr/src/lib/libast/common/uwin/getpass.c
val, err := unix.IoctlGetTermios(fd, unix.TCGETS)
if err != nil {
@ -70,17 +65,14 @@ func ReadPassword(fd int) ([]byte, error) {
return ret, nil
}
// MakeRaw puts the terminal connected to the given file descriptor into raw
// mode and returns the previous state of the terminal so that it can be
// restored.
// see http://cr.illumos.org/~webrev/andy_js/1060/
func MakeRaw(fd int) (*State, error) {
func makeRaw(fd int) (*State, error) {
// see http://cr.illumos.org/~webrev/andy_js/1060/
termios, err := unix.IoctlGetTermios(fd, unix.TCGETS)
if err != nil {
return nil, err
}
oldState := State{termios: *termios}
oldState := State{state{termios: *termios}}
termios.Iflag &^= unix.IGNBRK | unix.BRKINT | unix.PARMRK | unix.ISTRIP | unix.INLCR | unix.IGNCR | unix.ICRNL | unix.IXON
termios.Oflag &^= unix.OPOST
@ -97,25 +89,20 @@ func MakeRaw(fd int) (*State, error) {
return &oldState, nil
}
// Restore restores the terminal connected to the given file descriptor to a
// previous state.
func Restore(fd int, oldState *State) error {
func restore(fd int, oldState *State) error {
return unix.IoctlSetTermios(fd, unix.TCSETS, &oldState.termios)
}
// GetState returns the current state of a terminal which may be useful to
// restore the terminal after a signal.
func GetState(fd int) (*State, error) {
func getState(fd int) (*State, error) {
termios, err := unix.IoctlGetTermios(fd, unix.TCGETS)
if err != nil {
return nil, err
}
return &State{termios: *termios}, nil
return &State{state{termios: *termios}}, nil
}
// GetSize returns the dimensions of the given terminal.
func GetSize(fd int) (width, height int, err error) {
func getSize(fd int) (width, height int, err error) {
ws, err := unix.IoctlGetWinsize(fd, unix.TIOCGWINSZ)
if err != nil {
return 0, 0, err

47
vendor/golang.org/x/crypto/ssh/terminal/util.go → vendor/golang.org/x/term/term_unix.go generated vendored
View File

@ -1,46 +1,31 @@
// Copyright 2011 The Go Authors. All rights reserved.
// Copyright 2019 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 aix darwin dragonfly freebsd linux,!appengine netbsd openbsd
// +build aix darwin dragonfly freebsd linux netbsd openbsd zos
// Package terminal provides support functions for dealing with terminals, as
// commonly found on UNIX systems.
//
// Putting a terminal into raw mode is the most common requirement:
//
// oldState, err := terminal.MakeRaw(0)
// if err != nil {
// panic(err)
// }
// defer terminal.Restore(0, oldState)
package terminal // import "golang.org/x/crypto/ssh/terminal"
package term
import (
"golang.org/x/sys/unix"
)
// State contains the state of a terminal.
type State struct {
type state struct {
termios unix.Termios
}
// IsTerminal returns whether the given file descriptor is a terminal.
func IsTerminal(fd int) bool {
func isTerminal(fd int) bool {
_, err := unix.IoctlGetTermios(fd, ioctlReadTermios)
return err == nil
}
// MakeRaw put the terminal connected to the given file descriptor into raw
// mode and returns the previous state of the terminal so that it can be
// restored.
func MakeRaw(fd int) (*State, error) {
func makeRaw(fd int) (*State, error) {
termios, err := unix.IoctlGetTermios(fd, ioctlReadTermios)
if err != nil {
return nil, err
}
oldState := State{termios: *termios}
oldState := State{state{termios: *termios}}
// This attempts to replicate the behaviour documented for cfmakeraw in
// the termios(3) manpage.
@ -58,25 +43,20 @@ func MakeRaw(fd int) (*State, error) {
return &oldState, nil
}
// GetState returns the current state of a terminal which may be useful to
// restore the terminal after a signal.
func GetState(fd int) (*State, error) {
func getState(fd int) (*State, error) {
termios, err := unix.IoctlGetTermios(fd, ioctlReadTermios)
if err != nil {
return nil, err
}
return &State{termios: *termios}, nil
return &State{state{termios: *termios}}, nil
}
// Restore restores the terminal connected to the given file descriptor to a
// previous state.
func Restore(fd int, state *State) error {
func restore(fd int, state *State) error {
return unix.IoctlSetTermios(fd, ioctlWriteTermios, &state.termios)
}
// GetSize returns the dimensions of the given terminal.
func GetSize(fd int) (width, height int, err error) {
func getSize(fd int) (width, height int, err error) {
ws, err := unix.IoctlGetWinsize(fd, unix.TIOCGWINSZ)
if err != nil {
return -1, -1, err
@ -91,10 +71,7 @@ func (r passwordReader) Read(buf []byte) (int, error) {
return unix.Read(int(r), buf)
}
// ReadPassword reads a line of input from a terminal without local echo. This
// is commonly used for inputting passwords and other sensitive data. The slice
// returned does not include the \n.
func ReadPassword(fd int) ([]byte, error) {
func readPassword(fd int) ([]byte, error) {
termios, err := unix.IoctlGetTermios(fd, ioctlReadTermios)
if err != nil {
return nil, err

4
vendor/golang.org/x/crypto/ssh/terminal/util_linux.go → vendor/golang.org/x/term/term_unix_aix.go generated vendored
View File

@ -1,8 +1,8 @@
// Copyright 2013 The Go Authors. All rights reserved.
// Copyright 2019 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 terminal
package term
import "golang.org/x/sys/unix"

2
vendor/golang.org/x/crypto/ssh/terminal/util_bsd.go → vendor/golang.org/x/term/term_unix_bsd.go generated vendored
View File

@ -4,7 +4,7 @@
// +build darwin dragonfly freebsd netbsd openbsd
package terminal
package term
import "golang.org/x/sys/unix"

6
vendor/golang.org/x/crypto/ssh/terminal/util_aix.go → vendor/golang.org/x/term/term_unix_linux.go generated vendored
View File

@ -1,10 +1,8 @@
// Copyright 2018 The Go Authors. All rights reserved.
// Copyright 2019 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 aix
package terminal
package term
import "golang.org/x/sys/unix"

10
vendor/golang.org/x/term/term_unix_zos.go generated vendored Normal file
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@ -0,0 +1,10 @@
// Copyright 2020 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 term
import "golang.org/x/sys/unix"
const ioctlReadTermios = unix.TCGETS
const ioctlWriteTermios = unix.TCSETS

38
vendor/golang.org/x/term/term_unsupported.go generated vendored Normal file
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@ -0,0 +1,38 @@
// Copyright 2019 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 !aix,!darwin,!dragonfly,!freebsd,!linux,!netbsd,!openbsd,!zos,!windows,!solaris,!plan9
package term
import (
"fmt"
"runtime"
)
type state struct{}
func isTerminal(fd int) bool {
return false
}
func makeRaw(fd int) (*State, error) {
return nil, fmt.Errorf("terminal: MakeRaw not implemented on %s/%s", runtime.GOOS, runtime.GOARCH)
}
func getState(fd int) (*State, error) {
return nil, fmt.Errorf("terminal: GetState not implemented on %s/%s", runtime.GOOS, runtime.GOARCH)
}
func restore(fd int, state *State) error {
return fmt.Errorf("terminal: Restore not implemented on %s/%s", runtime.GOOS, runtime.GOARCH)
}
func getSize(fd int) (width, height int, err error) {
return 0, 0, fmt.Errorf("terminal: GetSize not implemented on %s/%s", runtime.GOOS, runtime.GOARCH)
}
func readPassword(fd int) ([]byte, error) {
return nil, fmt.Errorf("terminal: ReadPassword not implemented on %s/%s", runtime.GOOS, runtime.GOARCH)
}

48
vendor/golang.org/x/crypto/ssh/terminal/util_windows.go → vendor/golang.org/x/term/term_windows.go generated vendored
View File

@ -1,20 +1,8 @@
// Copyright 2011 The Go Authors. All rights reserved.
// Copyright 2019 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 windows
// Package terminal provides support functions for dealing with terminals, as
// commonly found on UNIX systems.
//
// Putting a terminal into raw mode is the most common requirement:
//
// oldState, err := terminal.MakeRaw(0)
// if err != nil {
// panic(err)
// }
// defer terminal.Restore(0, oldState)
package terminal
package term
import (
"os"
@ -22,21 +10,17 @@ import (
"golang.org/x/sys/windows"
)
type State struct {
type state struct {
mode uint32
}
// IsTerminal returns whether the given file descriptor is a terminal.
func IsTerminal(fd int) bool {
func isTerminal(fd int) bool {
var st uint32
err := windows.GetConsoleMode(windows.Handle(fd), &st)
return err == nil
}
// MakeRaw put the terminal connected to the given file descriptor into raw
// mode and returns the previous state of the terminal so that it can be
// restored.
func MakeRaw(fd int) (*State, error) {
func makeRaw(fd int) (*State, error) {
var st uint32
if err := windows.GetConsoleMode(windows.Handle(fd), &st); err != nil {
return nil, err
@ -45,29 +29,22 @@ func MakeRaw(fd int) (*State, error) {
if err := windows.SetConsoleMode(windows.Handle(fd), raw); err != nil {
return nil, err
}
return &State{st}, nil
return &State{state{st}}, nil
}
// GetState returns the current state of a terminal which may be useful to
// restore the terminal after a signal.
func GetState(fd int) (*State, error) {
func getState(fd int) (*State, error) {
var st uint32
if err := windows.GetConsoleMode(windows.Handle(fd), &st); err != nil {
return nil, err
}
return &State{st}, nil
return &State{state{st}}, nil
}
// Restore restores the terminal connected to the given file descriptor to a
// previous state.
func Restore(fd int, state *State) error {
func restore(fd int, state *State) error {
return windows.SetConsoleMode(windows.Handle(fd), state.mode)
}
// GetSize returns the visible dimensions of the given terminal.
//
// These dimensions don't include any scrollback buffer height.
func GetSize(fd int) (width, height int, err error) {
func getSize(fd int) (width, height int, err error) {
var info windows.ConsoleScreenBufferInfo
if err := windows.GetConsoleScreenBufferInfo(windows.Handle(fd), &info); err != nil {
return 0, 0, err
@ -75,10 +52,7 @@ func GetSize(fd int) (width, height int, err error) {
return int(info.Window.Right - info.Window.Left + 1), int(info.Window.Bottom - info.Window.Top + 1), nil
}
// ReadPassword reads a line of input from a terminal without local echo. This
// is commonly used for inputting passwords and other sensitive data. The slice
// returned does not include the \n.
func ReadPassword(fd int) ([]byte, error) {
func readPassword(fd int) ([]byte, error) {
var st uint32
if err := windows.GetConsoleMode(windows.Handle(fd), &st); err != nil {
return nil, err

987
vendor/golang.org/x/term/terminal.go generated vendored Normal file
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@ -0,0 +1,987 @@
// 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 term
import (
"bytes"
"io"
"runtime"
"strconv"
"sync"
"unicode/utf8"
)
// EscapeCodes contains escape sequences that can be written to the terminal in
// order to achieve different styles of text.
type EscapeCodes struct {
// Foreground colors
Black, Red, Green, Yellow, Blue, Magenta, Cyan, White []byte
// Reset all attributes
Reset []byte
}
var vt100EscapeCodes = EscapeCodes{
Black: []byte{keyEscape, '[', '3', '0', 'm'},
Red: []byte{keyEscape, '[', '3', '1', 'm'},
Green: []byte{keyEscape, '[', '3', '2', 'm'},
Yellow: []byte{keyEscape, '[', '3', '3', 'm'},
Blue: []byte{keyEscape, '[', '3', '4', 'm'},
Magenta: []byte{keyEscape, '[', '3', '5', 'm'},
Cyan: []byte{keyEscape, '[', '3', '6', 'm'},
White: []byte{keyEscape, '[', '3', '7', 'm'},
Reset: []byte{keyEscape, '[', '0', 'm'},
}
// Terminal contains the state for running a VT100 terminal that is capable of
// reading lines of input.
type Terminal struct {
// AutoCompleteCallback, if non-null, is called for each keypress with
// the full input line and the current position of the cursor (in
// bytes, as an index into |line|). If it returns ok=false, the key
// press is processed normally. Otherwise it returns a replacement line
// and the new cursor position.
AutoCompleteCallback func(line string, pos int, key rune) (newLine string, newPos int, ok bool)
// Escape contains a pointer to the escape codes for this terminal.
// It's always a valid pointer, although the escape codes themselves
// may be empty if the terminal doesn't support them.
Escape *EscapeCodes
// lock protects the terminal and the state in this object from
// concurrent processing of a key press and a Write() call.
lock sync.Mutex
c io.ReadWriter
prompt []rune
// line is the current line being entered.
line []rune
// pos is the logical position of the cursor in line
pos int
// echo is true if local echo is enabled
echo bool
// pasteActive is true iff there is a bracketed paste operation in
// progress.
pasteActive bool
// cursorX contains the current X value of the cursor where the left
// edge is 0. cursorY contains the row number where the first row of
// the current line is 0.
cursorX, cursorY int
// maxLine is the greatest value of cursorY so far.
maxLine int
termWidth, termHeight int
// outBuf contains the terminal data to be sent.
outBuf []byte
// remainder contains the remainder of any partial key sequences after
// a read. It aliases into inBuf.
remainder []byte
inBuf [256]byte
// history contains previously entered commands so that they can be
// accessed with the up and down keys.
history stRingBuffer
// historyIndex stores the currently accessed history entry, where zero
// means the immediately previous entry.
historyIndex int
// When navigating up and down the history it's possible to return to
// the incomplete, initial line. That value is stored in
// historyPending.
historyPending string
}
// NewTerminal runs a VT100 terminal on the given ReadWriter. If the ReadWriter is
// a local terminal, that terminal must first have been put into raw mode.
// prompt is a string that is written at the start of each input line (i.e.
// "> ").
func NewTerminal(c io.ReadWriter, prompt string) *Terminal {
return &Terminal{
Escape: &vt100EscapeCodes,
c: c,
prompt: []rune(prompt),
termWidth: 80,
termHeight: 24,
echo: true,
historyIndex: -1,
}
}
const (
keyCtrlC = 3
keyCtrlD = 4
keyCtrlU = 21
keyEnter = '\r'
keyEscape = 27
keyBackspace = 127
keyUnknown = 0xd800 /* UTF-16 surrogate area */ + iota
keyUp
keyDown
keyLeft
keyRight
keyAltLeft
keyAltRight
keyHome
keyEnd
keyDeleteWord
keyDeleteLine
keyClearScreen
keyPasteStart
keyPasteEnd
)
var (
crlf = []byte{'\r', '\n'}
pasteStart = []byte{keyEscape, '[', '2', '0', '0', '~'}
pasteEnd = []byte{keyEscape, '[', '2', '0', '1', '~'}
)
// bytesToKey tries to parse a key sequence from b. If successful, it returns
// the key and the remainder of the input. Otherwise it returns utf8.RuneError.
func bytesToKey(b []byte, pasteActive bool) (rune, []byte) {
if len(b) == 0 {
return utf8.RuneError, nil
}
if !pasteActive {
switch b[0] {
case 1: // ^A
return keyHome, b[1:]
case 2: // ^B
return keyLeft, b[1:]
case 5: // ^E
return keyEnd, b[1:]
case 6: // ^F
return keyRight, b[1:]
case 8: // ^H
return keyBackspace, b[1:]
case 11: // ^K
return keyDeleteLine, b[1:]
case 12: // ^L
return keyClearScreen, b[1:]
case 23: // ^W
return keyDeleteWord, b[1:]
case 14: // ^N
return keyDown, b[1:]
case 16: // ^P
return keyUp, b[1:]
}
}
if b[0] != keyEscape {
if !utf8.FullRune(b) {
return utf8.RuneError, b
}
r, l := utf8.DecodeRune(b)
return r, b[l:]
}
if !pasteActive && len(b) >= 3 && b[0] == keyEscape && b[1] == '[' {
switch b[2] {
case 'A':
return keyUp, b[3:]
case 'B':
return keyDown, b[3:]
case 'C':
return keyRight, b[3:]
case 'D':
return keyLeft, b[3:]
case 'H':
return keyHome, b[3:]
case 'F':
return keyEnd, b[3:]
}
}
if !pasteActive && len(b) >= 6 && b[0] == keyEscape && b[1] == '[' && b[2] == '1' && b[3] == ';' && b[4] == '3' {
switch b[5] {
case 'C':
return keyAltRight, b[6:]
case 'D':
return keyAltLeft, b[6:]
}
}
if !pasteActive && len(b) >= 6 && bytes.Equal(b[:6], pasteStart) {
return keyPasteStart, b[6:]
}
if pasteActive && len(b) >= 6 && bytes.Equal(b[:6], pasteEnd) {
return keyPasteEnd, b[6:]
}
// If we get here then we have a key that we don't recognise, or a
// partial sequence. It's not clear how one should find the end of a
// sequence without knowing them all, but it seems that [a-zA-Z~] only
// appears at the end of a sequence.
for i, c := range b[0:] {
if c >= 'a' && c <= 'z' || c >= 'A' && c <= 'Z' || c == '~' {
return keyUnknown, b[i+1:]
}
}
return utf8.RuneError, b
}
// queue appends data to the end of t.outBuf
func (t *Terminal) queue(data []rune) {
t.outBuf = append(t.outBuf, []byte(string(data))...)
}
var eraseUnderCursor = []rune{' ', keyEscape, '[', 'D'}
var space = []rune{' '}
func isPrintable(key rune) bool {
isInSurrogateArea := key >= 0xd800 && key <= 0xdbff
return key >= 32 && !isInSurrogateArea
}
// moveCursorToPos appends data to t.outBuf which will move the cursor to the
// given, logical position in the text.
func (t *Terminal) moveCursorToPos(pos int) {
if !t.echo {
return
}
x := visualLength(t.prompt) + pos
y := x / t.termWidth
x = x % t.termWidth
up := 0
if y < t.cursorY {
up = t.cursorY - y
}
down := 0
if y > t.cursorY {
down = y - t.cursorY
}
left := 0
if x < t.cursorX {
left = t.cursorX - x
}
right := 0
if x > t.cursorX {
right = x - t.cursorX
}
t.cursorX = x
t.cursorY = y
t.move(up, down, left, right)
}
func (t *Terminal) move(up, down, left, right int) {
m := []rune{}
// 1 unit up can be expressed as ^[[A or ^[A
// 5 units up can be expressed as ^[[5A
if up == 1 {
m = append(m, keyEscape, '[', 'A')
} else if up > 1 {
m = append(m, keyEscape, '[')
m = append(m, []rune(strconv.Itoa(up))...)
m = append(m, 'A')
}
if down == 1 {
m = append(m, keyEscape, '[', 'B')
} else if down > 1 {
m = append(m, keyEscape, '[')
m = append(m, []rune(strconv.Itoa(down))...)
m = append(m, 'B')
}
if right == 1 {
m = append(m, keyEscape, '[', 'C')
} else if right > 1 {
m = append(m, keyEscape, '[')
m = append(m, []rune(strconv.Itoa(right))...)
m = append(m, 'C')
}
if left == 1 {
m = append(m, keyEscape, '[', 'D')
} else if left > 1 {
m = append(m, keyEscape, '[')
m = append(m, []rune(strconv.Itoa(left))...)
m = append(m, 'D')
}
t.queue(m)
}
func (t *Terminal) clearLineToRight() {
op := []rune{keyEscape, '[', 'K'}
t.queue(op)
}
const maxLineLength = 4096
func (t *Terminal) setLine(newLine []rune, newPos int) {
if t.echo {
t.moveCursorToPos(0)
t.writeLine(newLine)
for i := len(newLine); i < len(t.line); i++ {
t.writeLine(space)
}
t.moveCursorToPos(newPos)
}
t.line = newLine
t.pos = newPos
}
func (t *Terminal) advanceCursor(places int) {
t.cursorX += places
t.cursorY += t.cursorX / t.termWidth
if t.cursorY > t.maxLine {
t.maxLine = t.cursorY
}
t.cursorX = t.cursorX % t.termWidth
if places > 0 && t.cursorX == 0 {
// Normally terminals will advance the current position
// when writing a character. But that doesn't happen
// for the last character in a line. However, when
// writing a character (except a new line) that causes
// a line wrap, the position will be advanced two
// places.
//
// So, if we are stopping at the end of a line, we
// need to write a newline so that our cursor can be
// advanced to the next line.
t.outBuf = append(t.outBuf, '\r', '\n')
}
}
func (t *Terminal) eraseNPreviousChars(n int) {
if n == 0 {
return
}
if t.pos < n {
n = t.pos
}
t.pos -= n
t.moveCursorToPos(t.pos)
copy(t.line[t.pos:], t.line[n+t.pos:])
t.line = t.line[:len(t.line)-n]
if t.echo {
t.writeLine(t.line[t.pos:])
for i := 0; i < n; i++ {
t.queue(space)
}
t.advanceCursor(n)
t.moveCursorToPos(t.pos)
}
}
// countToLeftWord returns then number of characters from the cursor to the
// start of the previous word.
func (t *Terminal) countToLeftWord() int {
if t.pos == 0 {
return 0
}
pos := t.pos - 1
for pos > 0 {
if t.line[pos] != ' ' {
break
}
pos--
}
for pos > 0 {
if t.line[pos] == ' ' {
pos++
break
}
pos--
}
return t.pos - pos
}
// countToRightWord returns then number of characters from the cursor to the
// start of the next word.
func (t *Terminal) countToRightWord() int {
pos := t.pos
for pos < len(t.line) {
if t.line[pos] == ' ' {
break
}
pos++
}
for pos < len(t.line) {
if t.line[pos] != ' ' {
break
}
pos++
}
return pos - t.pos
}
// visualLength returns the number of visible glyphs in s.
func visualLength(runes []rune) int {
inEscapeSeq := false
length := 0
for _, r := range runes {
switch {
case inEscapeSeq:
if (r >= 'a' && r <= 'z') || (r >= 'A' && r <= 'Z') {
inEscapeSeq = false
}
case r == '\x1b':
inEscapeSeq = true
default:
length++
}
}
return length
}
// handleKey processes the given key and, optionally, returns a line of text
// that the user has entered.
func (t *Terminal) handleKey(key rune) (line string, ok bool) {
if t.pasteActive && key != keyEnter {
t.addKeyToLine(key)
return
}
switch key {
case keyBackspace:
if t.pos == 0 {
return
}
t.eraseNPreviousChars(1)
case keyAltLeft:
// move left by a word.
t.pos -= t.countToLeftWord()
t.moveCursorToPos(t.pos)
case keyAltRight:
// move right by a word.
t.pos += t.countToRightWord()
t.moveCursorToPos(t.pos)
case keyLeft:
if t.pos == 0 {
return
}
t.pos--
t.moveCursorToPos(t.pos)
case keyRight:
if t.pos == len(t.line) {
return
}
t.pos++
t.moveCursorToPos(t.pos)
case keyHome:
if t.pos == 0 {
return
}
t.pos = 0
t.moveCursorToPos(t.pos)
case keyEnd:
if t.pos == len(t.line) {
return
}
t.pos = len(t.line)
t.moveCursorToPos(t.pos)
case keyUp:
entry, ok := t.history.NthPreviousEntry(t.historyIndex + 1)
if !ok {
return "", false
}
if t.historyIndex == -1 {
t.historyPending = string(t.line)
}
t.historyIndex++
runes := []rune(entry)
t.setLine(runes, len(runes))
case keyDown:
switch t.historyIndex {
case -1:
return
case 0:
runes := []rune(t.historyPending)
t.setLine(runes, len(runes))
t.historyIndex--
default:
entry, ok := t.history.NthPreviousEntry(t.historyIndex - 1)
if ok {
t.historyIndex--
runes := []rune(entry)
t.setLine(runes, len(runes))
}
}
case keyEnter:
t.moveCursorToPos(len(t.line))
t.queue([]rune("\r\n"))
line = string(t.line)
ok = true
t.line = t.line[:0]
t.pos = 0
t.cursorX = 0
t.cursorY = 0
t.maxLine = 0
case keyDeleteWord:
// Delete zero or more spaces and then one or more characters.
t.eraseNPreviousChars(t.countToLeftWord())
case keyDeleteLine:
// Delete everything from the current cursor position to the
// end of line.
for i := t.pos; i < len(t.line); i++ {
t.queue(space)
t.advanceCursor(1)
}
t.line = t.line[:t.pos]
t.moveCursorToPos(t.pos)
case keyCtrlD:
// Erase the character under the current position.
// The EOF case when the line is empty is handled in
// readLine().
if t.pos < len(t.line) {
t.pos++
t.eraseNPreviousChars(1)
}
case keyCtrlU:
t.eraseNPreviousChars(t.pos)
case keyClearScreen:
// Erases the screen and moves the cursor to the home position.
t.queue([]rune("\x1b[2J\x1b[H"))
t.queue(t.prompt)
t.cursorX, t.cursorY = 0, 0
t.advanceCursor(visualLength(t.prompt))
t.setLine(t.line, t.pos)
default:
if t.AutoCompleteCallback != nil {
prefix := string(t.line[:t.pos])
suffix := string(t.line[t.pos:])
t.lock.Unlock()
newLine, newPos, completeOk := t.AutoCompleteCallback(prefix+suffix, len(prefix), key)
t.lock.Lock()
if completeOk {
t.setLine([]rune(newLine), utf8.RuneCount([]byte(newLine)[:newPos]))
return
}
}
if !isPrintable(key) {
return
}
if len(t.line) == maxLineLength {
return
}
t.addKeyToLine(key)
}
return
}
// addKeyToLine inserts the given key at the current position in the current
// line.
func (t *Terminal) addKeyToLine(key rune) {
if len(t.line) == cap(t.line) {
newLine := make([]rune, len(t.line), 2*(1+len(t.line)))
copy(newLine, t.line)
t.line = newLine
}
t.line = t.line[:len(t.line)+1]
copy(t.line[t.pos+1:], t.line[t.pos:])
t.line[t.pos] = key
if t.echo {
t.writeLine(t.line[t.pos:])
}
t.pos++
t.moveCursorToPos(t.pos)
}
func (t *Terminal) writeLine(line []rune) {
for len(line) != 0 {
remainingOnLine := t.termWidth - t.cursorX
todo := len(line)
if todo > remainingOnLine {
todo = remainingOnLine
}
t.queue(line[:todo])
t.advanceCursor(visualLength(line[:todo]))
line = line[todo:]
}
}
// writeWithCRLF writes buf to w but replaces all occurrences of \n with \r\n.
func writeWithCRLF(w io.Writer, buf []byte) (n int, err error) {
for len(buf) > 0 {
i := bytes.IndexByte(buf, '\n')
todo := len(buf)
if i >= 0 {
todo = i
}
var nn int
nn, err = w.Write(buf[:todo])
n += nn
if err != nil {
return n, err
}
buf = buf[todo:]
if i >= 0 {
if _, err = w.Write(crlf); err != nil {
return n, err
}
n++
buf = buf[1:]
}
}
return n, nil
}
func (t *Terminal) Write(buf []byte) (n int, err error) {
t.lock.Lock()
defer t.lock.Unlock()
if t.cursorX == 0 && t.cursorY == 0 {
// This is the easy case: there's nothing on the screen that we
// have to move out of the way.
return writeWithCRLF(t.c, buf)
}
// We have a prompt and possibly user input on the screen. We
// have to clear it first.
t.move(0 /* up */, 0 /* down */, t.cursorX /* left */, 0 /* right */)
t.cursorX = 0
t.clearLineToRight()
for t.cursorY > 0 {
t.move(1 /* up */, 0, 0, 0)
t.cursorY--
t.clearLineToRight()
}
if _, err = t.c.Write(t.outBuf); err != nil {
return
}
t.outBuf = t.outBuf[:0]
if n, err = writeWithCRLF(t.c, buf); err != nil {
return
}
t.writeLine(t.prompt)
if t.echo {
t.writeLine(t.line)
}
t.moveCursorToPos(t.pos)
if _, err = t.c.Write(t.outBuf); err != nil {
return
}
t.outBuf = t.outBuf[:0]
return
}
// ReadPassword temporarily changes the prompt and reads a password, without
// echo, from the terminal.
func (t *Terminal) ReadPassword(prompt string) (line string, err error) {
t.lock.Lock()
defer t.lock.Unlock()
oldPrompt := t.prompt
t.prompt = []rune(prompt)
t.echo = false
line, err = t.readLine()
t.prompt = oldPrompt
t.echo = true
return
}
// ReadLine returns a line of input from the terminal.
func (t *Terminal) ReadLine() (line string, err error) {
t.lock.Lock()
defer t.lock.Unlock()
return t.readLine()
}
func (t *Terminal) readLine() (line string, err error) {
// t.lock must be held at this point
if t.cursorX == 0 && t.cursorY == 0 {
t.writeLine(t.prompt)
t.c.Write(t.outBuf)
t.outBuf = t.outBuf[:0]
}
lineIsPasted := t.pasteActive
for {
rest := t.remainder
lineOk := false
for !lineOk {
var key rune
key, rest = bytesToKey(rest, t.pasteActive)
if key == utf8.RuneError {
break
}
if !t.pasteActive {
if key == keyCtrlD {
if len(t.line) == 0 {
return "", io.EOF
}
}
if key == keyCtrlC {
return "", io.EOF
}
if key == keyPasteStart {
t.pasteActive = true
if len(t.line) == 0 {
lineIsPasted = true
}
continue
}
} else if key == keyPasteEnd {
t.pasteActive = false
continue
}
if !t.pasteActive {
lineIsPasted = false
}
line, lineOk = t.handleKey(key)
}
if len(rest) > 0 {
n := copy(t.inBuf[:], rest)
t.remainder = t.inBuf[:n]
} else {
t.remainder = nil
}
t.c.Write(t.outBuf)
t.outBuf = t.outBuf[:0]
if lineOk {
if t.echo {
t.historyIndex = -1
t.history.Add(line)
}
if lineIsPasted {
err = ErrPasteIndicator
}
return
}
// t.remainder is a slice at the beginning of t.inBuf
// containing a partial key sequence
readBuf := t.inBuf[len(t.remainder):]
var n int
t.lock.Unlock()
n, err = t.c.Read(readBuf)
t.lock.Lock()
if err != nil {
return
}
t.remainder = t.inBuf[:n+len(t.remainder)]
}
}
// SetPrompt sets the prompt to be used when reading subsequent lines.
func (t *Terminal) SetPrompt(prompt string) {
t.lock.Lock()
defer t.lock.Unlock()
t.prompt = []rune(prompt)
}
func (t *Terminal) clearAndRepaintLinePlusNPrevious(numPrevLines int) {
// Move cursor to column zero at the start of the line.
t.move(t.cursorY, 0, t.cursorX, 0)
t.cursorX, t.cursorY = 0, 0
t.clearLineToRight()
for t.cursorY < numPrevLines {
// Move down a line
t.move(0, 1, 0, 0)
t.cursorY++
t.clearLineToRight()
}
// Move back to beginning.
t.move(t.cursorY, 0, 0, 0)
t.cursorX, t.cursorY = 0, 0
t.queue(t.prompt)
t.advanceCursor(visualLength(t.prompt))
t.writeLine(t.line)
t.moveCursorToPos(t.pos)
}
func (t *Terminal) SetSize(width, height int) error {
t.lock.Lock()
defer t.lock.Unlock()
if width == 0 {
width = 1
}
oldWidth := t.termWidth
t.termWidth, t.termHeight = width, height
switch {
case width == oldWidth:
// If the width didn't change then nothing else needs to be
// done.
return nil
case len(t.line) == 0 && t.cursorX == 0 && t.cursorY == 0:
// If there is nothing on current line and no prompt printed,
// just do nothing
return nil
case width < oldWidth:
// Some terminals (e.g. xterm) will truncate lines that were
// too long when shinking. Others, (e.g. gnome-terminal) will
// attempt to wrap them. For the former, repainting t.maxLine
// works great, but that behaviour goes badly wrong in the case
// of the latter because they have doubled every full line.
// We assume that we are working on a terminal that wraps lines
// and adjust the cursor position based on every previous line
// wrapping and turning into two. This causes the prompt on
// xterms to move upwards, which isn't great, but it avoids a
// huge mess with gnome-terminal.
if t.cursorX >= t.termWidth {
t.cursorX = t.termWidth - 1
}
t.cursorY *= 2
t.clearAndRepaintLinePlusNPrevious(t.maxLine * 2)
case width > oldWidth:
// If the terminal expands then our position calculations will
// be wrong in the future because we think the cursor is
// |t.pos| chars into the string, but there will be a gap at
// the end of any wrapped line.
//
// But the position will actually be correct until we move, so
// we can move back to the beginning and repaint everything.
t.clearAndRepaintLinePlusNPrevious(t.maxLine)
}
_, err := t.c.Write(t.outBuf)
t.outBuf = t.outBuf[:0]
return err
}
type pasteIndicatorError struct{}
func (pasteIndicatorError) Error() string {
return "terminal: ErrPasteIndicator not correctly handled"
}
// ErrPasteIndicator may be returned from ReadLine as the error, in addition
// to valid line data. It indicates that bracketed paste mode is enabled and
// that the returned line consists only of pasted data. Programs may wish to
// interpret pasted data more literally than typed data.
var ErrPasteIndicator = pasteIndicatorError{}
// SetBracketedPasteMode requests that the terminal bracket paste operations
// with markers. Not all terminals support this but, if it is supported, then
// enabling this mode will stop any autocomplete callback from running due to
// pastes. Additionally, any lines that are completely pasted will be returned
// from ReadLine with the error set to ErrPasteIndicator.
func (t *Terminal) SetBracketedPasteMode(on bool) {
if on {
io.WriteString(t.c, "\x1b[?2004h")
} else {
io.WriteString(t.c, "\x1b[?2004l")
}
}
// stRingBuffer is a ring buffer of strings.
type stRingBuffer struct {
// entries contains max elements.
entries []string
max int
// head contains the index of the element most recently added to the ring.
head int
// size contains the number of elements in the ring.
size int
}
func (s *stRingBuffer) Add(a string) {
if s.entries == nil {
const defaultNumEntries = 100
s.entries = make([]string, defaultNumEntries)
s.max = defaultNumEntries
}
s.head = (s.head + 1) % s.max
s.entries[s.head] = a
if s.size < s.max {
s.size++
}
}
// NthPreviousEntry returns the value passed to the nth previous call to Add.
// If n is zero then the immediately prior value is returned, if one, then the
// next most recent, and so on. If such an element doesn't exist then ok is
// false.
func (s *stRingBuffer) NthPreviousEntry(n int) (value string, ok bool) {
if n >= s.size {
return "", false
}
index := s.head - n
if index < 0 {
index += s.max
}
return s.entries[index], true
}
// readPasswordLine reads from reader until it finds \n or io.EOF.
// The slice returned does not include the \n.
// readPasswordLine also ignores any \r it finds.
// Windows uses \r as end of line. So, on Windows, readPasswordLine
// reads until it finds \r and ignores any \n it finds during processing.
func readPasswordLine(reader io.Reader) ([]byte, error) {
var buf [1]byte
var ret []byte
for {
n, err := reader.Read(buf[:])
if n > 0 {
switch buf[0] {
case '\b':
if len(ret) > 0 {
ret = ret[:len(ret)-1]
}
case '\n':
if runtime.GOOS != "windows" {
return ret, nil
}
// otherwise ignore \n
case '\r':
if runtime.GOOS == "windows" {
return ret, nil
}
// otherwise ignore \r
default:
ret = append(ret, buf[0])
}
continue
}
if err != nil {
if err == io.EOF && len(ret) > 0 {
return ret, nil
}
return ret, err
}
}
}