diff options
Diffstat (limited to 'vendor/golang.org/x')
64 files changed, 3669 insertions, 1103 deletions
diff --git a/vendor/golang.org/x/crypto/chacha20/chacha_arm64.go b/vendor/golang.org/x/crypto/chacha20/chacha_arm64.go index b799e440b..c474e5a80 100644 --- a/vendor/golang.org/x/crypto/chacha20/chacha_arm64.go +++ b/vendor/golang.org/x/crypto/chacha20/chacha_arm64.go @@ -2,7 +2,7 @@ // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. -// +build go1.11,!gccgo,!purego +// +build go1.11,gc,!purego package chacha20 diff --git a/vendor/golang.org/x/crypto/chacha20/chacha_arm64.s b/vendor/golang.org/x/crypto/chacha20/chacha_arm64.s index 891481539..8fb49a13e 100644 --- a/vendor/golang.org/x/crypto/chacha20/chacha_arm64.s +++ b/vendor/golang.org/x/crypto/chacha20/chacha_arm64.s @@ -2,7 +2,7 @@ // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. -// +build go1.11,!gccgo,!purego +// +build go1.11,gc,!purego #include "textflag.h" diff --git a/vendor/golang.org/x/crypto/chacha20/chacha_noasm.go b/vendor/golang.org/x/crypto/chacha20/chacha_noasm.go index 4635307b8..3e8a609fb 100644 --- a/vendor/golang.org/x/crypto/chacha20/chacha_noasm.go +++ b/vendor/golang.org/x/crypto/chacha20/chacha_noasm.go @@ -2,7 +2,7 @@ // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. -// +build !arm64,!s390x,!ppc64le arm64,!go1.11 gccgo purego +// +build !arm64,!s390x,!ppc64le arm64,!go1.11 !gc purego package chacha20 diff --git a/vendor/golang.org/x/crypto/chacha20/chacha_ppc64le.go b/vendor/golang.org/x/crypto/chacha20/chacha_ppc64le.go index b79933034..2806c6325 100644 --- a/vendor/golang.org/x/crypto/chacha20/chacha_ppc64le.go +++ b/vendor/golang.org/x/crypto/chacha20/chacha_ppc64le.go @@ -2,7 +2,7 @@ // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. -// +build !gccgo,!purego +// +build gc,!purego package chacha20 diff --git a/vendor/golang.org/x/crypto/chacha20/chacha_ppc64le.s b/vendor/golang.org/x/crypto/chacha20/chacha_ppc64le.s index 23c602164..3dad4b2fa 100644 --- a/vendor/golang.org/x/crypto/chacha20/chacha_ppc64le.s +++ b/vendor/golang.org/x/crypto/chacha20/chacha_ppc64le.s @@ -19,7 +19,7 @@ // The differences in this and the original implementation are // due to the calling conventions and initialization of constants. -// +build !gccgo,!purego +// +build gc,!purego #include "textflag.h" diff --git a/vendor/golang.org/x/crypto/chacha20/chacha_s390x.go b/vendor/golang.org/x/crypto/chacha20/chacha_s390x.go index a9244bdf4..a0774dde1 100644 --- a/vendor/golang.org/x/crypto/chacha20/chacha_s390x.go +++ b/vendor/golang.org/x/crypto/chacha20/chacha_s390x.go @@ -2,7 +2,7 @@ // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. -// +build !gccgo,!purego +// +build gc,!purego package chacha20 diff --git a/vendor/golang.org/x/crypto/chacha20/chacha_s390x.s b/vendor/golang.org/x/crypto/chacha20/chacha_s390x.s index 89c658c41..818161189 100644 --- a/vendor/golang.org/x/crypto/chacha20/chacha_s390x.s +++ b/vendor/golang.org/x/crypto/chacha20/chacha_s390x.s @@ -2,7 +2,7 @@ // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. -// +build !gccgo,!purego +// +build gc,!purego #include "go_asm.h" #include "textflag.h" diff --git a/vendor/golang.org/x/crypto/curve25519/curve25519_amd64.go b/vendor/golang.org/x/crypto/curve25519/curve25519_amd64.go index 5120b779b..877b6de29 100644 --- a/vendor/golang.org/x/crypto/curve25519/curve25519_amd64.go +++ b/vendor/golang.org/x/crypto/curve25519/curve25519_amd64.go @@ -2,7 +2,7 @@ // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. -// +build amd64,!gccgo,!appengine,!purego +// +build amd64,gc,!purego package curve25519 diff --git a/vendor/golang.org/x/crypto/curve25519/curve25519_amd64.s b/vendor/golang.org/x/crypto/curve25519/curve25519_amd64.s index 0250c8885..6c5338092 100644 --- a/vendor/golang.org/x/crypto/curve25519/curve25519_amd64.s +++ b/vendor/golang.org/x/crypto/curve25519/curve25519_amd64.s @@ -5,7 +5,7 @@ // This code was translated into a form compatible with 6a from the public // domain sources in SUPERCOP: https://bench.cr.yp.to/supercop.html -// +build amd64,!gccgo,!appengine,!purego +// +build amd64,gc,!purego #define REDMASK51 0x0007FFFFFFFFFFFF diff --git a/vendor/golang.org/x/crypto/curve25519/curve25519_noasm.go b/vendor/golang.org/x/crypto/curve25519/curve25519_noasm.go index 047d49afc..80d3300af 100644 --- a/vendor/golang.org/x/crypto/curve25519/curve25519_noasm.go +++ b/vendor/golang.org/x/crypto/curve25519/curve25519_noasm.go @@ -2,7 +2,7 @@ // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. -// +build !amd64 gccgo appengine purego +// +build !amd64 !gc purego package curve25519 diff --git a/vendor/golang.org/x/crypto/internal/subtle/aliasing.go b/vendor/golang.org/x/crypto/internal/subtle/aliasing.go index f38797bfa..281c27ef0 100644 --- a/vendor/golang.org/x/crypto/internal/subtle/aliasing.go +++ b/vendor/golang.org/x/crypto/internal/subtle/aliasing.go @@ -2,7 +2,7 @@ // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. -// +build !appengine +// +build !purego // Package subtle implements functions that are often useful in cryptographic // code but require careful thought to use correctly. diff --git a/vendor/golang.org/x/crypto/internal/subtle/aliasing_appengine.go b/vendor/golang.org/x/crypto/internal/subtle/aliasing_purego.go index 0cc4a8a64..e20a29659 100644 --- a/vendor/golang.org/x/crypto/internal/subtle/aliasing_appengine.go +++ b/vendor/golang.org/x/crypto/internal/subtle/aliasing_purego.go @@ -2,7 +2,7 @@ // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. -// +build appengine +// +build purego // Package subtle implements functions that are often useful in cryptographic // code but require careful thought to use correctly. diff --git a/vendor/golang.org/x/crypto/poly1305/mac_noasm.go b/vendor/golang.org/x/crypto/poly1305/mac_noasm.go index d118f30ed..af6c94f92 100644 --- a/vendor/golang.org/x/crypto/poly1305/mac_noasm.go +++ b/vendor/golang.org/x/crypto/poly1305/mac_noasm.go @@ -2,7 +2,7 @@ // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. -// +build !amd64,!ppc64le,!s390x gccgo purego +// +build !amd64,!ppc64le,!s390x !gc purego package poly1305 diff --git a/vendor/golang.org/x/crypto/poly1305/sum_amd64.go b/vendor/golang.org/x/crypto/poly1305/sum_amd64.go index 99e5a1d50..cf3a69ed3 100644 --- a/vendor/golang.org/x/crypto/poly1305/sum_amd64.go +++ b/vendor/golang.org/x/crypto/poly1305/sum_amd64.go @@ -2,7 +2,7 @@ // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. -// +build !gccgo,!purego +// +build gc,!purego package poly1305 diff --git a/vendor/golang.org/x/crypto/poly1305/sum_amd64.s b/vendor/golang.org/x/crypto/poly1305/sum_amd64.s index 8d394a212..2cb037314 100644 --- a/vendor/golang.org/x/crypto/poly1305/sum_amd64.s +++ b/vendor/golang.org/x/crypto/poly1305/sum_amd64.s @@ -2,7 +2,7 @@ // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. -// +build !gccgo,!purego +// +build gc,!purego #include "textflag.h" diff --git a/vendor/golang.org/x/crypto/poly1305/sum_ppc64le.go b/vendor/golang.org/x/crypto/poly1305/sum_ppc64le.go index 2e7a120b1..cb4b7185d 100644 --- a/vendor/golang.org/x/crypto/poly1305/sum_ppc64le.go +++ b/vendor/golang.org/x/crypto/poly1305/sum_ppc64le.go @@ -2,7 +2,7 @@ // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. -// +build !gccgo,!purego +// +build gc,!purego package poly1305 diff --git a/vendor/golang.org/x/crypto/poly1305/sum_ppc64le.s b/vendor/golang.org/x/crypto/poly1305/sum_ppc64le.s index 4e0281387..5cd7494b2 100644 --- a/vendor/golang.org/x/crypto/poly1305/sum_ppc64le.s +++ b/vendor/golang.org/x/crypto/poly1305/sum_ppc64le.s @@ -2,7 +2,7 @@ // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. -// +build !gccgo,!purego +// +build gc,!purego #include "textflag.h" diff --git a/vendor/golang.org/x/crypto/poly1305/sum_s390x.go b/vendor/golang.org/x/crypto/poly1305/sum_s390x.go index 958fedc07..188a665e1 100644 --- a/vendor/golang.org/x/crypto/poly1305/sum_s390x.go +++ b/vendor/golang.org/x/crypto/poly1305/sum_s390x.go @@ -2,7 +2,7 @@ // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. -// +build !gccgo,!purego +// +build gc,!purego package poly1305 diff --git a/vendor/golang.org/x/crypto/poly1305/sum_s390x.s b/vendor/golang.org/x/crypto/poly1305/sum_s390x.s index 0fa9ee6e0..bdd882c60 100644 --- a/vendor/golang.org/x/crypto/poly1305/sum_s390x.s +++ b/vendor/golang.org/x/crypto/poly1305/sum_s390x.s @@ -2,7 +2,7 @@ // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. -// +build !gccgo,!purego +// +build gc,!purego #include "textflag.h" diff --git a/vendor/golang.org/x/crypto/ssh/client_auth.go b/vendor/golang.org/x/crypto/ssh/client_auth.go index f3265655e..c611aeb68 100644 --- a/vendor/golang.org/x/crypto/ssh/client_auth.go +++ b/vendor/golang.org/x/crypto/ssh/client_auth.go @@ -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 { diff --git a/vendor/golang.org/x/crypto/ssh/kex.go b/vendor/golang.org/x/crypto/ssh/kex.go index 7eedb209f..766e92939 100644 --- a/vendor/golang.org/x/crypto/ssh/kex.go +++ b/vendor/golang.org/x/crypto/ssh/kex.go @@ -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 diff --git a/vendor/golang.org/x/crypto/ssh/server.go b/vendor/golang.org/x/crypto/ssh/server.go index 7d42a8c88..b6911e830 100644 --- a/vendor/golang.org/x/crypto/ssh/server.go +++ b/vendor/golang.org/x/crypto/ssh/server.go @@ -572,6 +572,10 @@ userAuthLoop: perms = candidate.perms } case "gssapi-with-mic": + if config.GSSAPIWithMICConfig == nil { + authErr = errors.New("ssh: gssapi-with-mic auth not configured") + break + } gssapiConfig := config.GSSAPIWithMICConfig userAuthRequestGSSAPI, err := parseGSSAPIPayload(userAuthReq.Payload) if err != nil { diff --git a/vendor/golang.org/x/crypto/ssh/terminal/terminal.go b/vendor/golang.org/x/crypto/ssh/terminal/terminal.go index 2ffb97bfb..a4d1919a9 100644 --- a/vendor/golang.org/x/crypto/ssh/terminal/terminal.go +++ b/vendor/golang.org/x/crypto/ssh/terminal/terminal.go @@ -2,986 +2,75 @@ // 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 +// commonly found on UNIX systems. +// +// Deprecated: this package moved to golang.org/x/term. package terminal import ( - "bytes" "io" - "runtime" - "strconv" - "sync" - "unicode/utf8" + + "golang.org/x/term" ) // 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'}, -} +type EscapeCodes = term.EscapeCodes // 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 -} +type Terminal = term.Terminal // 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" + return term.NewTerminal(c, prompt) } // 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{} +var ErrPasteIndicator = term.ErrPasteIndicator -// 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") - } -} +// State contains the state of a terminal. +type State = term.State -// 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 +// IsTerminal returns whether the given file descriptor is a terminal. +func IsTerminal(fd int) bool { + return term.IsTerminal(fd) } -func (s *stRingBuffer) Add(a string) { - if s.entries == nil { - const defaultNumEntries = 100 - s.entries = make([]string, defaultNumEntries) - s.max = defaultNumEntries - } +// 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 term.ReadPassword(fd) +} - s.head = (s.head + 1) % s.max - s.entries[s.head] = a - if s.size < s.max { - s.size++ - } +// 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 term.MakeRaw(fd) } -// 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 +// Restore restores the terminal connected to the given file descriptor to a +// previous state. +func Restore(fd int, oldState *State) error { + return term.Restore(fd, oldState) } -// 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 +// 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 term.GetState(fd) +} - 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 - } - } +// GetSize returns the dimensions of the given terminal. +func GetSize(fd int) (width, height int, err error) { + return term.GetSize(fd) } diff --git a/vendor/golang.org/x/sys/plan9/asm.s b/vendor/golang.org/x/sys/plan9/asm.s new file mode 100644 index 000000000..06449ebfa --- /dev/null +++ b/vendor/golang.org/x/sys/plan9/asm.s @@ -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 diff --git a/vendor/golang.org/x/sys/plan9/asm_plan9_386.s b/vendor/golang.org/x/sys/plan9/asm_plan9_386.s new file mode 100644 index 000000000..bc5cab1f3 --- /dev/null +++ b/vendor/golang.org/x/sys/plan9/asm_plan9_386.s @@ -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) diff --git a/vendor/golang.org/x/sys/plan9/asm_plan9_amd64.s b/vendor/golang.org/x/sys/plan9/asm_plan9_amd64.s new file mode 100644 index 000000000..d3448e675 --- /dev/null +++ b/vendor/golang.org/x/sys/plan9/asm_plan9_amd64.s @@ -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) diff --git a/vendor/golang.org/x/sys/plan9/asm_plan9_arm.s b/vendor/golang.org/x/sys/plan9/asm_plan9_arm.s new file mode 100644 index 000000000..afb7c0a9b --- /dev/null +++ b/vendor/golang.org/x/sys/plan9/asm_plan9_arm.s @@ -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) diff --git a/vendor/golang.org/x/sys/plan9/const_plan9.go b/vendor/golang.org/x/sys/plan9/const_plan9.go new file mode 100644 index 000000000..b4e85a3a9 --- /dev/null +++ b/vendor/golang.org/x/sys/plan9/const_plan9.go @@ -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 +) diff --git a/vendor/golang.org/x/sys/plan9/dir_plan9.go b/vendor/golang.org/x/sys/plan9/dir_plan9.go new file mode 100644 index 000000000..0955e0c53 --- /dev/null +++ b/vendor/golang.org/x/sys/plan9/dir_plan9.go @@ -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 +} diff --git a/vendor/golang.org/x/sys/plan9/env_plan9.go b/vendor/golang.org/x/sys/plan9/env_plan9.go new file mode 100644 index 000000000..8f1918004 --- /dev/null +++ b/vendor/golang.org/x/sys/plan9/env_plan9.go @@ -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) +} diff --git a/vendor/golang.org/x/sys/plan9/errors_plan9.go b/vendor/golang.org/x/sys/plan9/errors_plan9.go new file mode 100644 index 000000000..65fe74d3e --- /dev/null +++ b/vendor/golang.org/x/sys/plan9/errors_plan9.go @@ -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") +) diff --git a/vendor/golang.org/x/sys/plan9/mkall.sh b/vendor/golang.org/x/sys/plan9/mkall.sh new file mode 100644 index 000000000..1650fbcc7 --- /dev/null +++ b/vendor/golang.org/x/sys/plan9/mkall.sh @@ -0,0 +1,150 @@ +#!/usr/bin/env bash +# 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. + +# The plan9 package provides access to the raw system call +# interface of the underlying operating system. Porting Go to +# a new architecture/operating system combination requires +# some manual effort, though there are tools that automate +# much of the process. The auto-generated files have names +# beginning with z. +# +# This script runs or (given -n) prints suggested commands to generate z files +# for the current system. Running those commands is not automatic. +# This script is documentation more than anything else. +# +# * asm_${GOOS}_${GOARCH}.s +# +# This hand-written assembly file implements system call dispatch. +# There are three entry points: +# +# func Syscall(trap, a1, a2, a3 uintptr) (r1, r2, err uintptr); +# func Syscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, err uintptr); +# func RawSyscall(trap, a1, a2, a3 uintptr) (r1, r2, err uintptr); +# +# The first and second are the standard ones; they differ only in +# how many arguments can be passed to the kernel. +# The third is for low-level use by the ForkExec wrapper; +# unlike the first two, it does not call into the scheduler to +# let it know that a system call is running. +# +# * syscall_${GOOS}.go +# +# This hand-written Go file implements system calls that need +# special handling and lists "//sys" comments giving prototypes +# for ones that can be auto-generated. Mksyscall reads those +# comments to generate the stubs. +# +# * syscall_${GOOS}_${GOARCH}.go +# +# Same as syscall_${GOOS}.go except that it contains code specific +# to ${GOOS} on one particular architecture. +# +# * types_${GOOS}.c +# +# This hand-written C file includes standard C headers and then +# creates typedef or enum names beginning with a dollar sign +# (use of $ in variable names is a gcc extension). The hardest +# part about preparing this file is figuring out which headers to +# include and which symbols need to be #defined to get the +# actual data structures that pass through to the kernel system calls. +# Some C libraries present alternate versions for binary compatibility +# and translate them on the way in and out of system calls, but +# there is almost always a #define that can get the real ones. +# See types_darwin.c and types_linux.c for examples. +# +# * zerror_${GOOS}_${GOARCH}.go +# +# This machine-generated file defines the system's error numbers, +# error strings, and signal numbers. The generator is "mkerrors.sh". +# Usually no arguments are needed, but mkerrors.sh will pass its +# arguments on to godefs. +# +# * zsyscall_${GOOS}_${GOARCH}.go +# +# Generated by mksyscall.pl; see syscall_${GOOS}.go above. +# +# * zsysnum_${GOOS}_${GOARCH}.go +# +# Generated by mksysnum_${GOOS}. +# +# * ztypes_${GOOS}_${GOARCH}.go +# +# Generated by godefs; see types_${GOOS}.c above. + +GOOSARCH="${GOOS}_${GOARCH}" + +# defaults +mksyscall="go run mksyscall.go" +mkerrors="./mkerrors.sh" +zerrors="zerrors_$GOOSARCH.go" +mksysctl="" +zsysctl="zsysctl_$GOOSARCH.go" +mksysnum= +mktypes= +run="sh" + +case "$1" in +-syscalls) + for i in zsyscall*go + do + sed 1q $i | sed 's;^// ;;' | sh > _$i && gofmt < _$i > $i + rm _$i + done + exit 0 + ;; +-n) + run="cat" + shift +esac + +case "$#" in +0) + ;; +*) + echo 'usage: mkall.sh [-n]' 1>&2 + exit 2 +esac + +case "$GOOSARCH" in +_* | *_ | _) + echo 'undefined $GOOS_$GOARCH:' "$GOOSARCH" 1>&2 + exit 1 + ;; +plan9_386) + mkerrors= + mksyscall="go run mksyscall.go -l32 -plan9 -tags plan9,386" + mksysnum="./mksysnum_plan9.sh /n/sources/plan9/sys/src/libc/9syscall/sys.h" + mktypes="XXX" + ;; +plan9_amd64) + mkerrors= + mksyscall="go run mksyscall.go -l32 -plan9 -tags plan9,amd64" + mksysnum="./mksysnum_plan9.sh /n/sources/plan9/sys/src/libc/9syscall/sys.h" + mktypes="XXX" + ;; +plan9_arm) + mkerrors= + mksyscall="go run mksyscall.go -l32 -plan9 -tags plan9,arm" + mksysnum="./mksysnum_plan9.sh /n/sources/plan9/sys/src/libc/9syscall/sys.h" + mktypes="XXX" + ;; +*) + echo 'unrecognized $GOOS_$GOARCH: ' "$GOOSARCH" 1>&2 + exit 1 + ;; +esac + +( + if [ -n "$mkerrors" ]; then echo "$mkerrors |gofmt >$zerrors"; fi + case "$GOOS" in + plan9) + syscall_goos="syscall_$GOOS.go" + if [ -n "$mksyscall" ]; then echo "$mksyscall $syscall_goos |gofmt >zsyscall_$GOOSARCH.go"; fi + ;; + esac + if [ -n "$mksysctl" ]; then echo "$mksysctl |gofmt >$zsysctl"; fi + if [ -n "$mksysnum" ]; then echo "$mksysnum |gofmt >zsysnum_$GOOSARCH.go"; fi + if [ -n "$mktypes" ]; then echo "$mktypes types_$GOOS.go |gofmt >ztypes_$GOOSARCH.go"; fi +) | $run diff --git a/vendor/golang.org/x/sys/plan9/mkerrors.sh b/vendor/golang.org/x/sys/plan9/mkerrors.sh new file mode 100644 index 000000000..85309c4a5 --- /dev/null +++ b/vendor/golang.org/x/sys/plan9/mkerrors.sh @@ -0,0 +1,246 @@ +#!/usr/bin/env bash +# Copyright 2009 The Go Authors. All rights reserved. +# Use of this source code is governed by a BSD-style +# license that can be found in the LICENSE file. + +# Generate Go code listing errors and other #defined constant +# values (ENAMETOOLONG etc.), by asking the preprocessor +# about the definitions. + +unset LANG +export LC_ALL=C +export LC_CTYPE=C + +CC=${CC:-gcc} + +uname=$(uname) + +includes=' +#include <sys/types.h> +#include <sys/file.h> +#include <fcntl.h> +#include <dirent.h> +#include <sys/socket.h> +#include <netinet/in.h> +#include <netinet/ip.h> +#include <netinet/ip6.h> +#include <netinet/tcp.h> +#include <errno.h> +#include <sys/signal.h> +#include <signal.h> +#include <sys/resource.h> +' + +ccflags="$@" + +# Write go tool cgo -godefs input. +( + echo package plan9 + echo + echo '/*' + indirect="includes_$(uname)" + echo "${!indirect} $includes" + echo '*/' + echo 'import "C"' + echo + echo 'const (' + + # The gcc command line prints all the #defines + # it encounters while processing the input + echo "${!indirect} $includes" | $CC -x c - -E -dM $ccflags | + awk ' + $1 != "#define" || $2 ~ /\(/ || $3 == "" {next} + + $2 ~ /^E([ABCD]X|[BIS]P|[SD]I|S|FL)$/ {next} # 386 registers + $2 ~ /^(SIGEV_|SIGSTKSZ|SIGRT(MIN|MAX))/ {next} + $2 ~ /^(SCM_SRCRT)$/ {next} + $2 ~ /^(MAP_FAILED)$/ {next} + + $2 !~ /^ETH_/ && + $2 !~ /^EPROC_/ && + $2 !~ /^EQUIV_/ && + $2 !~ /^EXPR_/ && + $2 ~ /^E[A-Z0-9_]+$/ || + $2 ~ /^B[0-9_]+$/ || + $2 ~ /^V[A-Z0-9]+$/ || + $2 ~ /^CS[A-Z0-9]/ || + $2 ~ /^I(SIG|CANON|CRNL|EXTEN|MAXBEL|STRIP|UTF8)$/ || + $2 ~ /^IGN/ || + $2 ~ /^IX(ON|ANY|OFF)$/ || + $2 ~ /^IN(LCR|PCK)$/ || + $2 ~ /(^FLU?SH)|(FLU?SH$)/ || + $2 ~ /^C(LOCAL|READ)$/ || + $2 == "BRKINT" || + $2 == "HUPCL" || + $2 == "PENDIN" || + $2 == "TOSTOP" || + $2 ~ /^PAR/ || + $2 ~ /^SIG[^_]/ || + $2 ~ /^O[CNPFP][A-Z]+[^_][A-Z]+$/ || + $2 ~ /^IN_/ || + $2 ~ /^LOCK_(SH|EX|NB|UN)$/ || + $2 ~ /^(AF|SOCK|SO|SOL|IPPROTO|IP|IPV6|ICMP6|TCP|EVFILT|NOTE|EV|SHUT|PROT|MAP|PACKET|MSG|SCM|MCL|DT|MADV|PR)_/ || + $2 == "ICMPV6_FILTER" || + $2 == "SOMAXCONN" || + $2 == "NAME_MAX" || + $2 == "IFNAMSIZ" || + $2 ~ /^CTL_(MAXNAME|NET|QUERY)$/ || + $2 ~ /^SYSCTL_VERS/ || + $2 ~ /^(MS|MNT)_/ || + $2 ~ /^TUN(SET|GET|ATTACH|DETACH)/ || + $2 ~ /^(O|F|FD|NAME|S|PTRACE|PT)_/ || + $2 ~ /^LINUX_REBOOT_CMD_/ || + $2 ~ /^LINUX_REBOOT_MAGIC[12]$/ || + $2 !~ "NLA_TYPE_MASK" && + $2 ~ /^(NETLINK|NLM|NLMSG|NLA|IFA|IFAN|RT|RTCF|RTN|RTPROT|RTNH|ARPHRD|ETH_P)_/ || + $2 ~ /^SIOC/ || + $2 ~ /^TIOC/ || + $2 !~ "RTF_BITS" && + $2 ~ /^(IFF|IFT|NET_RT|RTM|RTF|RTV|RTA|RTAX)_/ || + $2 ~ /^BIOC/ || + $2 ~ /^RUSAGE_(SELF|CHILDREN|THREAD)/ || + $2 ~ /^RLIMIT_(AS|CORE|CPU|DATA|FSIZE|NOFILE|STACK)|RLIM_INFINITY/ || + $2 ~ /^PRIO_(PROCESS|PGRP|USER)/ || + $2 ~ /^CLONE_[A-Z_]+/ || + $2 !~ /^(BPF_TIMEVAL)$/ && + $2 ~ /^(BPF|DLT)_/ || + $2 !~ "WMESGLEN" && + $2 ~ /^W[A-Z0-9]+$/ {printf("\t%s = C.%s\n", $2, $2)} + $2 ~ /^__WCOREFLAG$/ {next} + $2 ~ /^__W[A-Z0-9]+$/ {printf("\t%s = C.%s\n", substr($2,3), $2)} + + {next} + ' | sort + + echo ')' +) >_const.go + +# Pull out the error names for later. +errors=$( + echo '#include <errno.h>' | $CC -x c - -E -dM $ccflags | + awk '$1=="#define" && $2 ~ /^E[A-Z0-9_]+$/ { print $2 }' | + sort +) + +# Pull out the signal names for later. +signals=$( + echo '#include <signal.h>' | $CC -x c - -E -dM $ccflags | + awk '$1=="#define" && $2 ~ /^SIG[A-Z0-9]+$/ { print $2 }' | + egrep -v '(SIGSTKSIZE|SIGSTKSZ|SIGRT)' | + sort +) + +# Again, writing regexps to a file. +echo '#include <errno.h>' | $CC -x c - -E -dM $ccflags | + awk '$1=="#define" && $2 ~ /^E[A-Z0-9_]+$/ { print "^\t" $2 "[ \t]*=" }' | + sort >_error.grep +echo '#include <signal.h>' | $CC -x c - -E -dM $ccflags | + awk '$1=="#define" && $2 ~ /^SIG[A-Z0-9]+$/ { print "^\t" $2 "[ \t]*=" }' | + egrep -v '(SIGSTKSIZE|SIGSTKSZ|SIGRT)' | + sort >_signal.grep + +echo '// mkerrors.sh' "$@" +echo '// Code generated by the command above; DO NOT EDIT.' +echo +go tool cgo -godefs -- "$@" _const.go >_error.out +cat _error.out | grep -vf _error.grep | grep -vf _signal.grep +echo +echo '// Errors' +echo 'const (' +cat _error.out | grep -f _error.grep | sed 's/=\(.*\)/= Errno(\1)/' +echo ')' + +echo +echo '// Signals' +echo 'const (' +cat _error.out | grep -f _signal.grep | sed 's/=\(.*\)/= Signal(\1)/' +echo ')' + +# Run C program to print error and syscall strings. +( + echo -E " +#include <stdio.h> +#include <stdlib.h> +#include <errno.h> +#include <ctype.h> +#include <string.h> +#include <signal.h> + +#define nelem(x) (sizeof(x)/sizeof((x)[0])) + +enum { A = 'A', Z = 'Z', a = 'a', z = 'z' }; // avoid need for single quotes below + +int errors[] = { +" + for i in $errors + do + echo -E ' '$i, + done + + echo -E " +}; + +int signals[] = { +" + for i in $signals + do + echo -E ' '$i, + done + + # Use -E because on some systems bash builtin interprets \n itself. + echo -E ' +}; + +static int +intcmp(const void *a, const void *b) +{ + return *(int*)a - *(int*)b; +} + +int +main(void) +{ + int i, j, e; + char buf[1024], *p; + + printf("\n\n// Error table\n"); + printf("var errors = [...]string {\n"); + qsort(errors, nelem(errors), sizeof errors[0], intcmp); + for(i=0; i<nelem(errors); i++) { + e = errors[i]; + if(i > 0 && errors[i-1] == e) + continue; + strcpy(buf, strerror(e)); + // lowercase first letter: Bad -> bad, but STREAM -> STREAM. + if(A <= buf[0] && buf[0] <= Z && a <= buf[1] && buf[1] <= z) + buf[0] += a - A; + printf("\t%d: \"%s\",\n", e, buf); + } + printf("}\n\n"); + + printf("\n\n// Signal table\n"); + printf("var signals = [...]string {\n"); + qsort(signals, nelem(signals), sizeof signals[0], intcmp); + for(i=0; i<nelem(signals); i++) { + e = signals[i]; + if(i > 0 && signals[i-1] == e) + continue; + strcpy(buf, strsignal(e)); + // lowercase first letter: Bad -> bad, but STREAM -> STREAM. + if(A <= buf[0] && buf[0] <= Z && a <= buf[1] && buf[1] <= z) + buf[0] += a - A; + // cut trailing : number. + p = strrchr(buf, ":"[0]); + if(p) + *p = '\0'; + printf("\t%d: \"%s\",\n", e, buf); + } + printf("}\n\n"); + + return 0; +} + +' +) >_errors.c + +$CC $ccflags -o _errors _errors.c && $GORUN ./_errors && rm -f _errors.c _errors _const.go _error.grep _signal.grep _error.out diff --git a/vendor/golang.org/x/sys/plan9/mksysnum_plan9.sh b/vendor/golang.org/x/sys/plan9/mksysnum_plan9.sh new file mode 100644 index 000000000..3c3ab0581 --- /dev/null +++ b/vendor/golang.org/x/sys/plan9/mksysnum_plan9.sh @@ -0,0 +1,23 @@ +#!/bin/sh +# 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. + +COMMAND="mksysnum_plan9.sh $@" + +cat <<EOF +// $COMMAND +// MACHINE GENERATED BY THE ABOVE COMMAND; DO NOT EDIT + +package plan9 + +const( +EOF + +SP='[ ]' # space or tab +sed "s/^#define${SP}\\([A-Z0-9_][A-Z0-9_]*\\)${SP}${SP}*\\([0-9][0-9]*\\)/SYS_\\1=\\2/g" \ + < $1 | grep -v SYS__ + +cat <<EOF +) +EOF diff --git a/vendor/golang.org/x/sys/plan9/pwd_go15_plan9.go b/vendor/golang.org/x/sys/plan9/pwd_go15_plan9.go new file mode 100644 index 000000000..87ae9d2a3 --- /dev/null +++ b/vendor/golang.org/x/sys/plan9/pwd_go15_plan9.go @@ -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) +} diff --git a/vendor/golang.org/x/sys/plan9/pwd_plan9.go b/vendor/golang.org/x/sys/plan9/pwd_plan9.go new file mode 100644 index 000000000..c07c798bc --- /dev/null +++ b/vendor/golang.org/x/sys/plan9/pwd_plan9.go @@ -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) +} diff --git a/vendor/golang.org/x/sys/plan9/race.go b/vendor/golang.org/x/sys/plan9/race.go new file mode 100644 index 000000000..42edd93ef --- /dev/null +++ b/vendor/golang.org/x/sys/plan9/race.go @@ -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) +} diff --git a/vendor/golang.org/x/sys/plan9/race0.go b/vendor/golang.org/x/sys/plan9/race0.go new file mode 100644 index 000000000..c89cf8fc0 --- /dev/null +++ b/vendor/golang.org/x/sys/plan9/race0.go @@ -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) { +} diff --git a/vendor/golang.org/x/sys/plan9/str.go b/vendor/golang.org/x/sys/plan9/str.go new file mode 100644 index 000000000..4f7f9ad7c --- /dev/null +++ b/vendor/golang.org/x/sys/plan9/str.go @@ -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:]) +} diff --git a/vendor/golang.org/x/sys/plan9/syscall.go b/vendor/golang.org/x/sys/plan9/syscall.go new file mode 100644 index 000000000..e7363a2f5 --- /dev/null +++ b/vendor/golang.org/x/sys/plan9/syscall.go @@ -0,0 +1,116 @@ +// 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 ( + "bytes" + "strings" + "unsafe" + + "golang.org/x/sys/internal/unsafeheader" +) + +// 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) { + if strings.IndexByte(s, 0) != -1 { + 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 +} + +// ByteSliceToString returns a string form of the text represented by the slice s, with a terminating NUL and any +// bytes after the NUL removed. +func ByteSliceToString(s []byte) string { + if i := bytes.IndexByte(s, 0); i != -1 { + s = s[:i] + } + return string(s) +} + +// BytePtrToString takes a pointer to a sequence of text and returns the corresponding string. +// If the pointer is nil, it returns the empty string. It assumes that the text sequence is terminated +// at a zero byte; if the zero byte is not present, the program may crash. +func BytePtrToString(p *byte) string { + if p == nil { + return "" + } + if *p == 0 { + return "" + } + + // Find NUL terminator. + n := 0 + for ptr := unsafe.Pointer(p); *(*byte)(ptr) != 0; n++ { + ptr = unsafe.Pointer(uintptr(ptr) + 1) + } + + var s []byte + h := (*unsafeheader.Slice)(unsafe.Pointer(&s)) + h.Data = unsafe.Pointer(p) + h.Len = n + h.Cap = n + + return string(s) +} + +// 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) diff --git a/vendor/golang.org/x/sys/plan9/syscall_plan9.go b/vendor/golang.org/x/sys/plan9/syscall_plan9.go new file mode 100644 index 000000000..84e147148 --- /dev/null +++ b/vendor/golang.org/x/sys/plan9/syscall_plan9.go @@ -0,0 +1,349 @@ +// 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) diff --git a/vendor/golang.org/x/sys/plan9/zsyscall_plan9_386.go b/vendor/golang.org/x/sys/plan9/zsyscall_plan9_386.go new file mode 100644 index 000000000..6819bc209 --- /dev/null +++ b/vendor/golang.org/x/sys/plan9/zsyscall_plan9_386.go @@ -0,0 +1,284 @@ +// 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 +} diff --git a/vendor/golang.org/x/sys/plan9/zsyscall_plan9_amd64.go b/vendor/golang.org/x/sys/plan9/zsyscall_plan9_amd64.go new file mode 100644 index 000000000..418abbbfc --- /dev/null +++ b/vendor/golang.org/x/sys/plan9/zsyscall_plan9_amd64.go @@ -0,0 +1,284 @@ +// 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 +} diff --git a/vendor/golang.org/x/sys/plan9/zsyscall_plan9_arm.go b/vendor/golang.org/x/sys/plan9/zsyscall_plan9_arm.go new file mode 100644 index 000000000..3e8a1a58c --- /dev/null +++ b/vendor/golang.org/x/sys/plan9/zsyscall_plan9_arm.go @@ -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 +} diff --git a/vendor/golang.org/x/sys/plan9/zsysnum_plan9.go b/vendor/golang.org/x/sys/plan9/zsysnum_plan9.go new file mode 100644 index 000000000..22e8abd43 --- /dev/null +++ b/vendor/golang.org/x/sys/plan9/zsysnum_plan9.go @@ -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 +) diff --git a/vendor/golang.org/x/term/AUTHORS b/vendor/golang.org/x/term/AUTHORS new file mode 100644 index 000000000..15167cd74 --- /dev/null +++ b/vendor/golang.org/x/term/AUTHORS @@ -0,0 +1,3 @@ +# This source code refers to The Go Authors for copyright purposes. +# The master list of authors is in the main Go distribution, +# visible at http://tip.golang.org/AUTHORS. diff --git a/vendor/golang.org/x/term/CONTRIBUTING.md b/vendor/golang.org/x/term/CONTRIBUTING.md new file mode 100644 index 000000000..d0485e887 --- /dev/null +++ b/vendor/golang.org/x/term/CONTRIBUTING.md @@ -0,0 +1,26 @@ +# Contributing to Go + +Go is an open source project. + +It is the work of hundreds of contributors. We appreciate your help! + +## Filing issues + +When [filing an issue](https://golang.org/issue/new), make sure to answer these five questions: + +1. What version of Go are you using (`go version`)? +2. What operating system and processor architecture are you using? +3. What did you do? +4. What did you expect to see? +5. What did you see instead? + +General questions should go to the [golang-nuts mailing list](https://groups.google.com/group/golang-nuts) instead of the issue tracker. +The gophers there will answer or ask you to file an issue if you've tripped over a bug. + +## Contributing code + +Please read the [Contribution Guidelines](https://golang.org/doc/contribute.html) +before sending patches. + +Unless otherwise noted, the Go source files are distributed under +the BSD-style license found in the LICENSE file. diff --git a/vendor/golang.org/x/term/CONTRIBUTORS b/vendor/golang.org/x/term/CONTRIBUTORS new file mode 100644 index 000000000..1c4577e96 --- /dev/null +++ b/vendor/golang.org/x/term/CONTRIBUTORS @@ -0,0 +1,3 @@ +# This source code was written by the Go contributors. +# The master list of contributors is in the main Go distribution, +# visible at http://tip.golang.org/CONTRIBUTORS. diff --git a/vendor/golang.org/x/term/LICENSE b/vendor/golang.org/x/term/LICENSE new file mode 100644 index 000000000..6a66aea5e --- /dev/null +++ b/vendor/golang.org/x/term/LICENSE @@ -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. diff --git a/vendor/golang.org/x/term/PATENTS b/vendor/golang.org/x/term/PATENTS new file mode 100644 index 000000000..733099041 --- /dev/null +++ b/vendor/golang.org/x/term/PATENTS @@ -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. diff --git a/vendor/golang.org/x/term/README.md b/vendor/golang.org/x/term/README.md new file mode 100644 index 000000000..e0f390cb2 --- /dev/null +++ b/vendor/golang.org/x/term/README.md @@ -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. diff --git a/vendor/golang.org/x/term/go.mod b/vendor/golang.org/x/term/go.mod new file mode 100644 index 000000000..d45f52851 --- /dev/null +++ b/vendor/golang.org/x/term/go.mod @@ -0,0 +1,5 @@ +module golang.org/x/term + +go 1.11 + +require golang.org/x/sys v0.0.0-20201119102817-f84b799fce68 diff --git a/vendor/golang.org/x/term/go.sum b/vendor/golang.org/x/term/go.sum new file mode 100644 index 000000000..de9e09c65 --- /dev/null +++ b/vendor/golang.org/x/term/go.sum @@ -0,0 +1,2 @@ +golang.org/x/sys v0.0.0-20201119102817-f84b799fce68 h1:nxC68pudNYkKU6jWhgrqdreuFiOQWj1Fs7T3VrH4Pjw= +golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= diff --git a/vendor/golang.org/x/crypto/ssh/terminal/util_plan9.go b/vendor/golang.org/x/term/term.go index 9317ac7ed..69931cc84 100644 --- a/vendor/golang.org/x/crypto/ssh/terminal/util_plan9.go +++ b/vendor/golang.org/x/term/term.go @@ -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) } diff --git a/vendor/golang.org/x/term/term_plan9.go b/vendor/golang.org/x/term/term_plan9.go new file mode 100644 index 000000000..21afa55cd --- /dev/null +++ b/vendor/golang.org/x/term/term_plan9.go @@ -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) +} diff --git a/vendor/golang.org/x/crypto/ssh/terminal/util_solaris.go b/vendor/golang.org/x/term/term_solaris.go index 3d5f06a9f..b9da29744 100644 --- a/vendor/golang.org/x/crypto/ssh/terminal/util_solaris.go +++ b/vendor/golang.org/x/term/term_solaris.go @@ -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 diff --git a/vendor/golang.org/x/crypto/ssh/terminal/util.go b/vendor/golang.org/x/term/term_unix.go index 391104084..4c60e457d 100644 --- a/vendor/golang.org/x/crypto/ssh/terminal/util.go +++ b/vendor/golang.org/x/term/term_unix.go @@ -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 diff --git a/vendor/golang.org/x/crypto/ssh/terminal/util_linux.go b/vendor/golang.org/x/term/term_unix_aix.go index 5fadfe8a1..2d5efd26a 100644 --- a/vendor/golang.org/x/crypto/ssh/terminal/util_linux.go +++ b/vendor/golang.org/x/term/term_unix_aix.go @@ -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" diff --git a/vendor/golang.org/x/crypto/ssh/terminal/util_bsd.go b/vendor/golang.org/x/term/term_unix_bsd.go index cb23a5904..3342be00b 100644 --- a/vendor/golang.org/x/crypto/ssh/terminal/util_bsd.go +++ b/vendor/golang.org/x/term/term_unix_bsd.go @@ -4,7 +4,7 @@ // +build darwin dragonfly freebsd netbsd openbsd -package terminal +package term import "golang.org/x/sys/unix" diff --git a/vendor/golang.org/x/crypto/ssh/terminal/util_aix.go b/vendor/golang.org/x/term/term_unix_linux.go index dfcd62785..2d5efd26a 100644 --- a/vendor/golang.org/x/crypto/ssh/terminal/util_aix.go +++ b/vendor/golang.org/x/term/term_unix_linux.go @@ -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" diff --git a/vendor/golang.org/x/term/term_unix_zos.go b/vendor/golang.org/x/term/term_unix_zos.go new file mode 100644 index 000000000..b85ab8998 --- /dev/null +++ b/vendor/golang.org/x/term/term_unix_zos.go @@ -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 diff --git a/vendor/golang.org/x/term/term_unsupported.go b/vendor/golang.org/x/term/term_unsupported.go new file mode 100644 index 000000000..8b5d1bad0 --- /dev/null +++ b/vendor/golang.org/x/term/term_unsupported.go @@ -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) +} diff --git a/vendor/golang.org/x/crypto/ssh/terminal/util_windows.go b/vendor/golang.org/x/term/term_windows.go index f614e9cb6..465f56060 100644 --- a/vendor/golang.org/x/crypto/ssh/terminal/util_windows.go +++ b/vendor/golang.org/x/term/term_windows.go @@ -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 diff --git a/vendor/golang.org/x/term/terminal.go b/vendor/golang.org/x/term/terminal.go new file mode 100644 index 000000000..535ab8257 --- /dev/null +++ b/vendor/golang.org/x/term/terminal.go @@ -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 + } + } +} |