Skip to content

R
riscv-gcc-1
Commit 447fb74d by Ian Lance Taylor
Options

exp: remove exp/proxy and exp/terminal packages 

    
    The exp/proxy package was removed from the master library in
    https://golang.org/cl/6461056 (August, 2012).
    
    The exp/terminal package was removed from the master library in
    https://golang.org/cl/5970044 (March, 2012).
    
    I'm not sure why they lingered in the gofrontend copy, but let's
    finally remove them now.
    
    Reviewed-on: https://go-review.googlesource.com/87138

From-SVN: r256435
parent 227e5798
Showing with 31 additions and 1392 deletions
gcc/go/gofrontend/MERGE
87df767807acac466edb3bb6445ad83a48141d17
4b8036b3f995cdb0b99a9fa26c2af1e2420b4fa2
The first line of this file holds the git revision number of the last
merge done from the gofrontend repository.
libgo/Makefile.am
......@@ -235,12 +235,6 @@ toolexeclibgoencoding_DATA = \
encoding/pem.gox \
encoding/xml.gox
toolexeclibgoexpdir = $(toolexeclibgodir)/exp
toolexeclibgoexp_DATA = \
exp/proxy.gox \
exp/terminal.gox
toolexeclibgogodir = $(toolexeclibgodir)/go
toolexeclibgogo_DATA = \
......@@ -759,8 +753,6 @@ PACKAGES = \
encoding/pem \
encoding/xml \
errors \
exp/proxy \
exp/terminal \
expvar \
flag \
fmt \
......@@ -1066,7 +1058,6 @@ CHECK_DEPS = \
$(toolexeclibgocrypto_DATA) \
$(toolexeclibgodebug_DATA) \
$(toolexeclibgoencoding_DATA) \
$(toolexeclibgoexp_DATA) \
$(toolexeclibgogo_DATA) \
$(toolexeclibgohash_DATA) \
$(toolexeclibgoimage_DATA) \
......@@ -1352,8 +1343,6 @@ TEST_PACKAGES = \
encoding/json/check \
encoding/pem/check \
encoding/xml/check \
exp/proxy/check \
exp/terminal/check \
html/template/check \
go/ast/check \
go/build/check \
......
libgo/Makefile.in
......@@ -131,7 +131,6 @@ am__installdirs = "$(DESTDIR)$(toolexeclibdir)" \
"$(DESTDIR)$(toolexeclibgodatabasesqldir)" \
"$(DESTDIR)$(toolexeclibgodebugdir)" \
"$(DESTDIR)$(toolexeclibgoencodingdir)" \
"$(DESTDIR)$(toolexeclibgoexpdir)" \
"$(DESTDIR)$(toolexeclibgogodir)" \
"$(DESTDIR)$(toolexeclibgohashdir)" \
"$(DESTDIR)$(toolexeclibgohtmldir)" \
......@@ -257,17 +256,16 @@ DATA = $(noinst_DATA) $(toolexeclibgo_DATA) \
$(toolexeclibgocontainer_DATA) $(toolexeclibgocrypto_DATA) \
$(toolexeclibgocryptox509_DATA) $(toolexeclibgodatabase_DATA) \
$(toolexeclibgodatabasesql_DATA) $(toolexeclibgodebug_DATA) \
$(toolexeclibgoencoding_DATA) $(toolexeclibgoexp_DATA) \
$(toolexeclibgogo_DATA) $(toolexeclibgohash_DATA) \
$(toolexeclibgohtml_DATA) $(toolexeclibgoimage_DATA) \
$(toolexeclibgoimagecolor_DATA) $(toolexeclibgoindex_DATA) \
$(toolexeclibgoio_DATA) $(toolexeclibgolog_DATA) \
$(toolexeclibgomath_DATA) $(toolexeclibgomime_DATA) \
$(toolexeclibgonet_DATA) $(toolexeclibgonethttp_DATA) \
$(toolexeclibgonetrpc_DATA) $(toolexeclibgoos_DATA) \
$(toolexeclibgopath_DATA) $(toolexeclibgoregexp_DATA) \
$(toolexeclibgoruntime_DATA) $(toolexeclibgosync_DATA) \
$(toolexeclibgotesting_DATA) \
$(toolexeclibgoencoding_DATA) $(toolexeclibgogo_DATA) \
$(toolexeclibgohash_DATA) $(toolexeclibgohtml_DATA) \
$(toolexeclibgoimage_DATA) $(toolexeclibgoimagecolor_DATA) \
$(toolexeclibgoindex_DATA) $(toolexeclibgoio_DATA) \
$(toolexeclibgolog_DATA) $(toolexeclibgomath_DATA) \
$(toolexeclibgomime_DATA) $(toolexeclibgonet_DATA) \
$(toolexeclibgonethttp_DATA) $(toolexeclibgonetrpc_DATA) \
$(toolexeclibgoos_DATA) $(toolexeclibgopath_DATA) \
$(toolexeclibgoregexp_DATA) $(toolexeclibgoruntime_DATA) \
$(toolexeclibgosync_DATA) $(toolexeclibgotesting_DATA) \
$(toolexeclibgotestinginternal_DATA) $(toolexeclibgotext_DATA) \
$(toolexeclibgotexttemplate_DATA) $(toolexeclibgounicode_DATA)
RECURSIVE_CLEAN_TARGETS = mostlyclean-recursive clean-recursive \
......@@ -629,11 +627,6 @@ toolexeclibgoencoding_DATA = \
encoding/pem.gox \
encoding/xml.gox
toolexeclibgoexpdir = $(toolexeclibgodir)/exp
toolexeclibgoexp_DATA = \
exp/proxy.gox \
exp/terminal.gox
toolexeclibgogodir = $(toolexeclibgodir)/go
toolexeclibgogo_DATA = \
go/ast.gox \
......@@ -890,8 +883,6 @@ PACKAGES = \
encoding/pem \
encoding/xml \
errors \
exp/proxy \
exp/terminal \
expvar \
flag \
fmt \
......@@ -1176,18 +1167,17 @@ CHECK = \
CHECK_DEPS = $(toolexeclibgo_DATA) $(toolexeclibgoarchive_DATA) \
$(toolexeclibgocompress_DATA) $(toolexeclibgocontainer_DATA) \
$(toolexeclibgocrypto_DATA) $(toolexeclibgodebug_DATA) \
$(toolexeclibgoencoding_DATA) $(toolexeclibgoexp_DATA) \
$(toolexeclibgogo_DATA) $(toolexeclibgohash_DATA) \
$(toolexeclibgoimage_DATA) $(toolexeclibgoindex_DATA) \
$(toolexeclibgoio_DATA) $(toolexeclibgolog_DATA) \
$(toolexeclibgomath_DATA) $(toolexeclibgomime_DATA) \
$(toolexeclibgonet_DATA) $(toolexeclibgonethttp_DATA) \
$(toolexeclibgoos_DATA) $(toolexeclibgopath_DATA) \
$(toolexeclibgorpc_DATA) $(toolexeclibgoruntime_DATA) \
$(toolexeclibgosync_DATA) $(toolexeclibgotesting_DATA) \
$(toolexeclibgotext_DATA) $(toolexeclibgotexttemplate_DATA) \
$(toolexeclibgounicode_DATA) $(noinst_LIBRARIES) \
$(am__append_3) $(am__append_4)
$(toolexeclibgoencoding_DATA) $(toolexeclibgogo_DATA) \
$(toolexeclibgohash_DATA) $(toolexeclibgoimage_DATA) \
$(toolexeclibgoindex_DATA) $(toolexeclibgoio_DATA) \
$(toolexeclibgolog_DATA) $(toolexeclibgomath_DATA) \
$(toolexeclibgomime_DATA) $(toolexeclibgonet_DATA) \
$(toolexeclibgonethttp_DATA) $(toolexeclibgoos_DATA) \
$(toolexeclibgopath_DATA) $(toolexeclibgorpc_DATA) \
$(toolexeclibgoruntime_DATA) $(toolexeclibgosync_DATA) \
$(toolexeclibgotesting_DATA) $(toolexeclibgotext_DATA) \
$(toolexeclibgotexttemplate_DATA) $(toolexeclibgounicode_DATA) \
$(noinst_LIBRARIES) $(am__append_3) $(am__append_4)
# Pass -ffp-contract=off, or 386-specific options, when building the
# math package. MATH_FLAG is defined in configure.ac.
......@@ -1334,8 +1324,6 @@ TEST_PACKAGES = \
encoding/json/check \
encoding/pem/check \
encoding/xml/check \
exp/proxy/check \
exp/terminal/check \
html/template/check \
go/ast/check \
go/build/check \
......@@ -2210,27 +2198,6 @@ uninstall-toolexeclibgoencodingDATA:
@list='$(toolexeclibgoencoding_DATA)'; test -n "$(toolexeclibgoencodingdir)" || list=; \
files=`for p in $$list; do echo $$p; done | sed -e 's|^.*/||'`; \
dir='$(DESTDIR)$(toolexeclibgoencodingdir)'; $(am__uninstall_files_from_dir)
install-toolexeclibgoexpDATA: $(toolexeclibgoexp_DATA)
@$(NORMAL_INSTALL)
@list='$(toolexeclibgoexp_DATA)'; test -n "$(toolexeclibgoexpdir)" || list=; \
if test -n "$$list"; then \
echo " $(MKDIR_P) '$(DESTDIR)$(toolexeclibgoexpdir)'"; \
$(MKDIR_P) "$(DESTDIR)$(toolexeclibgoexpdir)" || exit 1; \
fi; \
for p in $$list; do \
if test -f "$$p"; then d=; else d="$(srcdir)/"; fi; \
echo "$$d$$p"; \
done | $(am__base_list) | \
while read files; do \
echo " $(INSTALL_DATA) $$files '$(DESTDIR)$(toolexeclibgoexpdir)'"; \
$(INSTALL_DATA) $$files "$(DESTDIR)$(toolexeclibgoexpdir)" || exit $$?; \
done
uninstall-toolexeclibgoexpDATA:
@$(NORMAL_UNINSTALL)
@list='$(toolexeclibgoexp_DATA)'; test -n "$(toolexeclibgoexpdir)" || list=; \
files=`for p in $$list; do echo $$p; done | sed -e 's|^.*/||'`; \
dir='$(DESTDIR)$(toolexeclibgoexpdir)'; $(am__uninstall_files_from_dir)
install-toolexeclibgogoDATA: $(toolexeclibgogo_DATA)
@$(NORMAL_INSTALL)
@list='$(toolexeclibgogo_DATA)'; test -n "$(toolexeclibgogodir)" || list=; \
......@@ -2855,7 +2822,7 @@ all-am: Makefile $(LIBRARIES) $(LTLIBRARIES) all-multi $(DATA) \
config.h
installdirs: installdirs-recursive
installdirs-am:
for dir in "$(DESTDIR)$(toolexeclibdir)" "$(DESTDIR)$(toolexeclibdir)" "$(DESTDIR)$(toolexeclibgodir)" "$(DESTDIR)$(toolexeclibgoarchivedir)" "$(DESTDIR)$(toolexeclibgocompressdir)" "$(DESTDIR)$(toolexeclibgocontainerdir)" "$(DESTDIR)$(toolexeclibgocryptodir)" "$(DESTDIR)$(toolexeclibgocryptox509dir)" "$(DESTDIR)$(toolexeclibgodatabasedir)" "$(DESTDIR)$(toolexeclibgodatabasesqldir)" "$(DESTDIR)$(toolexeclibgodebugdir)" "$(DESTDIR)$(toolexeclibgoencodingdir)" "$(DESTDIR)$(toolexeclibgoexpdir)" "$(DESTDIR)$(toolexeclibgogodir)" "$(DESTDIR)$(toolexeclibgohashdir)" "$(DESTDIR)$(toolexeclibgohtmldir)" "$(DESTDIR)$(toolexeclibgoimagedir)" "$(DESTDIR)$(toolexeclibgoimagecolordir)" "$(DESTDIR)$(toolexeclibgoindexdir)" "$(DESTDIR)$(toolexeclibgoiodir)" "$(DESTDIR)$(toolexeclibgologdir)" "$(DESTDIR)$(toolexeclibgomathdir)" "$(DESTDIR)$(toolexeclibgomimedir)" "$(DESTDIR)$(toolexeclibgonetdir)" "$(DESTDIR)$(toolexeclibgonethttpdir)" "$(DESTDIR)$(toolexeclibgonetrpcdir)" "$(DESTDIR)$(toolexeclibgoosdir)" "$(DESTDIR)$(toolexeclibgopathdir)" "$(DESTDIR)$(toolexeclibgoregexpdir)" "$(DESTDIR)$(toolexeclibgoruntimedir)" "$(DESTDIR)$(toolexeclibgosyncdir)" "$(DESTDIR)$(toolexeclibgotestingdir)" "$(DESTDIR)$(toolexeclibgotestinginternaldir)" "$(DESTDIR)$(toolexeclibgotextdir)" "$(DESTDIR)$(toolexeclibgotexttemplatedir)" "$(DESTDIR)$(toolexeclibgounicodedir)"; do \
for dir in "$(DESTDIR)$(toolexeclibdir)" "$(DESTDIR)$(toolexeclibdir)" "$(DESTDIR)$(toolexeclibgodir)" "$(DESTDIR)$(toolexeclibgoarchivedir)" "$(DESTDIR)$(toolexeclibgocompressdir)" "$(DESTDIR)$(toolexeclibgocontainerdir)" "$(DESTDIR)$(toolexeclibgocryptodir)" "$(DESTDIR)$(toolexeclibgocryptox509dir)" "$(DESTDIR)$(toolexeclibgodatabasedir)" "$(DESTDIR)$(toolexeclibgodatabasesqldir)" "$(DESTDIR)$(toolexeclibgodebugdir)" "$(DESTDIR)$(toolexeclibgoencodingdir)" "$(DESTDIR)$(toolexeclibgogodir)" "$(DESTDIR)$(toolexeclibgohashdir)" "$(DESTDIR)$(toolexeclibgohtmldir)" "$(DESTDIR)$(toolexeclibgoimagedir)" "$(DESTDIR)$(toolexeclibgoimagecolordir)" "$(DESTDIR)$(toolexeclibgoindexdir)" "$(DESTDIR)$(toolexeclibgoiodir)" "$(DESTDIR)$(toolexeclibgologdir)" "$(DESTDIR)$(toolexeclibgomathdir)" "$(DESTDIR)$(toolexeclibgomimedir)" "$(DESTDIR)$(toolexeclibgonetdir)" "$(DESTDIR)$(toolexeclibgonethttpdir)" "$(DESTDIR)$(toolexeclibgonetrpcdir)" "$(DESTDIR)$(toolexeclibgoosdir)" "$(DESTDIR)$(toolexeclibgopathdir)" "$(DESTDIR)$(toolexeclibgoregexpdir)" "$(DESTDIR)$(toolexeclibgoruntimedir)" "$(DESTDIR)$(toolexeclibgosyncdir)" "$(DESTDIR)$(toolexeclibgotestingdir)" "$(DESTDIR)$(toolexeclibgotestinginternaldir)" "$(DESTDIR)$(toolexeclibgotextdir)" "$(DESTDIR)$(toolexeclibgotexttemplatedir)" "$(DESTDIR)$(toolexeclibgounicodedir)"; do \
test -z "$$dir" || $(MKDIR_P) "$$dir"; \
done
install: install-recursive
......@@ -2931,9 +2898,9 @@ install-exec-am: install-multi install-toolexeclibLIBRARIES \
install-toolexeclibgodatabaseDATA \
install-toolexeclibgodatabasesqlDATA \
install-toolexeclibgodebugDATA \
install-toolexeclibgoencodingDATA install-toolexeclibgoexpDATA \
install-toolexeclibgogoDATA install-toolexeclibgohashDATA \
install-toolexeclibgohtmlDATA install-toolexeclibgoimageDATA \
install-toolexeclibgoencodingDATA install-toolexeclibgogoDATA \
install-toolexeclibgohashDATA install-toolexeclibgohtmlDATA \
install-toolexeclibgoimageDATA \
install-toolexeclibgoimagecolorDATA \
install-toolexeclibgoindexDATA install-toolexeclibgoioDATA \
install-toolexeclibgologDATA install-toolexeclibgomathDATA \
......@@ -2999,8 +2966,7 @@ uninstall-am: uninstall-toolexeclibLIBRARIES \
uninstall-toolexeclibgodatabasesqlDATA \
uninstall-toolexeclibgodebugDATA \
uninstall-toolexeclibgoencodingDATA \
uninstall-toolexeclibgoexpDATA uninstall-toolexeclibgogoDATA \
uninstall-toolexeclibgohashDATA \
uninstall-toolexeclibgogoDATA uninstall-toolexeclibgohashDATA \
uninstall-toolexeclibgohtmlDATA \
uninstall-toolexeclibgoimageDATA \
uninstall-toolexeclibgoimagecolorDATA \
......@@ -3046,9 +3012,9 @@ uninstall-am: uninstall-toolexeclibLIBRARIES \
install-toolexeclibgodatabaseDATA \
install-toolexeclibgodatabasesqlDATA \
install-toolexeclibgodebugDATA \
install-toolexeclibgoencodingDATA install-toolexeclibgoexpDATA \
install-toolexeclibgogoDATA install-toolexeclibgohashDATA \
install-toolexeclibgohtmlDATA install-toolexeclibgoimageDATA \
install-toolexeclibgoencodingDATA install-toolexeclibgogoDATA \
install-toolexeclibgohashDATA install-toolexeclibgohtmlDATA \
install-toolexeclibgoimageDATA \
install-toolexeclibgoimagecolorDATA \
install-toolexeclibgoindexDATA install-toolexeclibgoioDATA \
install-toolexeclibgologDATA install-toolexeclibgomathDATA \
......@@ -3078,8 +3044,7 @@ uninstall-am: uninstall-toolexeclibLIBRARIES \
uninstall-toolexeclibgodatabasesqlDATA \
uninstall-toolexeclibgodebugDATA \
uninstall-toolexeclibgoencodingDATA \
uninstall-toolexeclibgoexpDATA uninstall-toolexeclibgogoDATA \
uninstall-toolexeclibgohashDATA \
uninstall-toolexeclibgogoDATA uninstall-toolexeclibgohashDATA \
uninstall-toolexeclibgohtmlDATA \
uninstall-toolexeclibgoimageDATA \
uninstall-toolexeclibgoimagecolorDATA \
......
libgo/go/exp/README deleted 100644 → 0
This directory tree contains experimental packages and
unfinished code that is subject to even more change than the
rest of the Go tree.
libgo/go/exp/proxy/direct.go deleted 100644 → 0
// 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 proxy
import (
"net"
)
type direct struct{}
// Direct is a direct proxy: one that makes network connections directly.
var Direct = direct{}
func (direct) Dial(network, addr string) (net.Conn, error) {
return net.Dial(network, addr)
}
libgo/go/exp/proxy/per_host.go deleted 100644 → 0
// 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 proxy
import (
"net"
"strings"
)
// A PerHost directs connections to a default Dailer unless the hostname
// requested matches one of a number of exceptions.
type PerHost struct {
def, bypass Dialer
bypassNetworks []*net.IPNet
bypassIPs []net.IP
bypassZones []string
bypassHosts []string
}
// NewPerHost returns a PerHost Dialer that directs connections to either
// defaultDialer or bypass, depending on whether the connection matches one of
// the configured rules.
func NewPerHost(defaultDialer, bypass Dialer) *PerHost {
return &PerHost{
def: defaultDialer,
bypass: bypass,
}
}
// Dial connects to the address addr on the network net through either
// defaultDialer or bypass.
func (p *PerHost) Dial(network, addr string) (c net.Conn, err error) {
host, _, err := net.SplitHostPort(addr)
if err != nil {
return nil, err
}
return p.dialerForRequest(host).Dial(network, addr)
}
func (p *PerHost) dialerForRequest(host string) Dialer {
if ip := net.ParseIP(host); ip != nil {
for _, net := range p.bypassNetworks {
if net.Contains(ip) {
return p.bypass
}
}
for _, bypassIP := range p.bypassIPs {
if bypassIP.Equal(ip) {
return p.bypass
}
}
return p.def
}
for _, zone := range p.bypassZones {
if strings.HasSuffix(host, zone) {
return p.bypass
}
if host == zone[1:] {
// For a zone "example.com", we match "example.com"
// too.
return p.bypass
}
}
for _, bypassHost := range p.bypassHosts {
if bypassHost == host {
return p.bypass
}
}
return p.def
}
// AddFromString parses a string that contains comma-separated values
// specifying hosts that should use the bypass proxy. Each value is either an
// IP address, a CIDR range, a zone (*.example.com) or a hostname
// (localhost). A best effort is made to parse the string and errors are
// ignored.
func (p *PerHost) AddFromString(s string) {
hosts := strings.Split(s, ",")
for _, host := range hosts {
host = strings.TrimSpace(host)
if len(host) == 0 {
continue
}
if strings.Contains(host, "/") {
// We assume that it's a CIDR address like 127.0.0.0/8
if _, net, err := net.ParseCIDR(host); err == nil {
p.AddNetwork(net)
}
continue
}
if ip := net.ParseIP(host); ip != nil {
p.AddIP(ip)
continue
}
if strings.HasPrefix(host, "*.") {
p.AddZone(host[1:])
continue
}
p.AddHost(host)
}
}
// AddIP specifies an IP address that will use the bypass proxy. Note that
// this will only take effect if a literal IP address is dialed. A connection
// to a named host will never match an IP.
func (p *PerHost) AddIP(ip net.IP) {
p.bypassIPs = append(p.bypassIPs, ip)
}
// AddIP specifies an IP range that will use the bypass proxy. Note that this
// will only take effect if a literal IP address is dialed. A connection to a
// named host will never match.
func (p *PerHost) AddNetwork(net *net.IPNet) {
p.bypassNetworks = append(p.bypassNetworks, net)
}
// AddZone specifies a DNS suffix that will use the bypass proxy. A zone of
// "example.com" matches "example.com" and all of its subdomains.
func (p *PerHost) AddZone(zone string) {
if strings.HasSuffix(zone, ".") {
zone = zone[:len(zone)-1]
}
if !strings.HasPrefix(zone, ".") {
zone = "." + zone
}
p.bypassZones = append(p.bypassZones, zone)
}
// AddHost specifies a hostname that will use the bypass proxy.
func (p *PerHost) AddHost(host string) {
if strings.HasSuffix(host, ".") {
host = host[:len(host)-1]
}
p.bypassHosts = append(p.bypassHosts, host)
}
libgo/go/exp/proxy/per_host_test.go deleted 100644 → 0
// 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 proxy
import (
"errors"
"net"
"reflect"
"testing"
)
type recordingProxy struct {
addrs []string
}
func (r *recordingProxy) Dial(network, addr string) (net.Conn, error) {
r.addrs = append(r.addrs, addr)
return nil, errors.New("recordingProxy")
}
func TestPerHost(t *testing.T) {
var def, bypass recordingProxy
perHost := NewPerHost(&def, &bypass)
perHost.AddFromString("localhost,*.zone,127.0.0.1,10.0.0.1/8,1000::/16")
expectedDef := []string{
"example.com:123",
"1.2.3.4:123",
"[1001::]:123",
}
expectedBypass := []string{
"localhost:123",
"zone:123",
"foo.zone:123",
"127.0.0.1:123",
"10.1.2.3:123",
"[1000::]:123",
}
for _, addr := range expectedDef {
perHost.Dial("tcp", addr)
}
for _, addr := range expectedBypass {
perHost.Dial("tcp", addr)
}
if !reflect.DeepEqual(expectedDef, def.addrs) {
t.Errorf("Hosts which went to the default proxy didn't match. Got %v, want %v", def.addrs, expectedDef)
}
if !reflect.DeepEqual(expectedBypass, bypass.addrs) {
t.Errorf("Hosts which went to the bypass proxy didn't match. Got %v, want %v", bypass.addrs, expectedBypass)
}
}
libgo/go/exp/proxy/proxy.go deleted 100644 → 0
// 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 proxy provides support for a variety of protocols to proxy network
// data.
package proxy
import (
"errors"
"net"
"net/url"
"os"
)
// A Dialer is a means to establish a connection.
type Dialer interface {
// Dial connects to the given address via the proxy.
Dial(network, addr string) (c net.Conn, err error)
}
// Auth contains authentication parameters that specific Dialers may require.
type Auth struct {
User, Password string
}
// DefaultDialer returns the dialer specified by the proxy related variables in
// the environment.
func FromEnvironment() Dialer {
allProxy := os.Getenv("all_proxy")
if len(allProxy) == 0 {
return Direct
}
proxyURL, err := url.Parse(allProxy)
if err != nil {
return Direct
}
proxy, err := FromURL(proxyURL, Direct)
if err != nil {
return Direct
}
noProxy := os.Getenv("no_proxy")
if len(noProxy) == 0 {
return proxy
}
perHost := NewPerHost(proxy, Direct)
perHost.AddFromString(noProxy)
return perHost
}
// proxySchemes is a map from URL schemes to a function that creates a Dialer
// from a URL with such a scheme.
var proxySchemes map[string]func(*url.URL, Dialer) (Dialer, error)
// RegisterDialerType takes a URL scheme and a function to generate Dialers from
// a URL with that scheme and a forwarding Dialer. Registered schemes are used
// by FromURL.
func RegisterDialerType(scheme string, f func(*url.URL, Dialer) (Dialer, error)) {
if proxySchemes == nil {
proxySchemes = make(map[string]func(*url.URL, Dialer) (Dialer, error))
}
proxySchemes[scheme] = f
}
// FromURL returns a Dialer given a URL specification and an underlying
// Dialer for it to make network requests.
func FromURL(u *url.URL, forward Dialer) (Dialer, error) {
var auth *Auth
if u.User != nil {
auth = new(Auth)
auth.User = u.User.Username()
if p, ok := u.User.Password(); ok {
auth.Password = p
}
}
switch u.Scheme {
case "socks5":
return SOCKS5("tcp", u.Host, auth, forward)
}
// If the scheme doesn't match any of the built-in schemes, see if it
// was registered by another package.
if proxySchemes != nil {
if f, ok := proxySchemes[u.Scheme]; ok {
return f(u, forward)
}
}
return nil, errors.New("proxy: unknown scheme: " + u.Scheme)
}
libgo/go/exp/proxy/proxy_test.go deleted 100644 → 0
// 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 proxy
import (
"net"
"net/url"
"testing"
)
type testDialer struct {
network, addr string
}
func (t *testDialer) Dial(network, addr string) (net.Conn, error) {
t.network = network
t.addr = addr
return nil, t
}
func (t *testDialer) Error() string {
return "testDialer " + t.network + " " + t.addr
}
func TestFromURL(t *testing.T) {
u, err := url.Parse("socks5://user:password@1.2.3.4:5678")
if err != nil {
t.Fatalf("failed to parse URL: %s", err)
}
tp := &testDialer{}
proxy, err := FromURL(u, tp)
if err != nil {
t.Fatalf("FromURL failed: %s", err)
}
conn, err := proxy.Dial("tcp", "example.com:80")
if conn != nil {
t.Error("Dial unexpected didn't return an error")
}
if tp, ok := err.(*testDialer); ok {
if tp.network != "tcp" || tp.addr != "1.2.3.4:5678" {
t.Errorf("Dialer connected to wrong host. Wanted 1.2.3.4:5678, got: %v", tp)
}
} else {
t.Errorf("Unexpected error from Dial: %s", err)
}
}
libgo/go/exp/proxy/socks5.go deleted 100644 → 0
// 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 proxy
import (
"errors"
"io"
"net"
"strconv"
)
// SOCKS5 returns a Dialer that makes SOCKSv5 connections to the given address
// with an optional username and password. See RFC 1928.
func SOCKS5(network, addr string, auth *Auth, forward Dialer) (Dialer, error) {
s := &socks5{
network: network,
addr: addr,
forward: forward,
}
if auth != nil {
s.user = auth.User
s.password = auth.Password
}
return s, nil
}
type socks5 struct {
user, password string
network, addr string
forward Dialer
}
const socks5Version = 5
const (
socks5AuthNone = 0
socks5AuthPassword = 2
)
const socks5Connect = 1
const (
socks5IP4 = 1
socks5Domain = 3
socks5IP6 = 4
)
var socks5Errors = []string{
"",
"general failure",
"connection forbidden",
"network unreachable",
"host unreachable",
"connection refused",
"TTL expired",
"command not supported",
"address type not supported",
}
// Dial connects to the address addr on the network net via the SOCKS5 proxy.
func (s *socks5) Dial(network, addr string) (net.Conn, error) {
switch network {
case "tcp", "tcp6", "tcp4":
break
default:
return nil, errors.New("proxy: no support for SOCKS5 proxy connections of type " + network)
}
conn, err := s.forward.Dial(s.network, s.addr)
if err != nil {
return nil, err
}
closeConn := &conn
defer func() {
if closeConn != nil {
(*closeConn).Close()
}
}()
host, portStr, err := net.SplitHostPort(addr)
if err != nil {
return nil, err
}
port, err := strconv.Atoi(portStr)
if err != nil {
return nil, errors.New("proxy: failed to parse port number: " + portStr)
}
if port < 1 || port > 0xffff {
return nil, errors.New("proxy: port number out of range: " + portStr)
}
// the size here is just an estimate
buf := make([]byte, 0, 6+len(host))
buf = append(buf, socks5Version)
if len(s.user) > 0 && len(s.user) < 256 && len(s.password) < 256 {
buf = append(buf, 2 /* num auth methods */, socks5AuthNone, socks5AuthPassword)
} else {
buf = append(buf, 1 /* num auth methods */, socks5AuthNone)
}
if _, err = conn.Write(buf); err != nil {
return nil, errors.New("proxy: failed to write greeting to SOCKS5 proxy at " + s.addr + ": " + err.Error())
}
if _, err = io.ReadFull(conn, buf[:2]); err != nil {
return nil, errors.New("proxy: failed to read greeting from SOCKS5 proxy at " + s.addr + ": " + err.Error())
}
if buf[0] != 5 {
return nil, errors.New("proxy: SOCKS5 proxy at " + s.addr + " has unexpected version " + strconv.Itoa(int(buf[0])))
}
if buf[1] == 0xff {
return nil, errors.New("proxy: SOCKS5 proxy at " + s.addr + " requires authentication")
}
if buf[1] == socks5AuthPassword {
buf = buf[:0]
buf = append(buf, socks5Version)
buf = append(buf, uint8(len(s.user)))
buf = append(buf, s.user...)
buf = append(buf, uint8(len(s.password)))
buf = append(buf, s.password...)
if _, err = conn.Write(buf); err != nil {
return nil, errors.New("proxy: failed to write authentication request to SOCKS5 proxy at " + s.addr + ": " + err.Error())
}
if _, err = io.ReadFull(conn, buf[:2]); err != nil {
return nil, errors.New("proxy: failed to read authentication reply from SOCKS5 proxy at " + s.addr + ": " + err.Error())
}
if buf[1] != 0 {
return nil, errors.New("proxy: SOCKS5 proxy at " + s.addr + " rejected username/password")
}
}
buf = buf[:0]
buf = append(buf, socks5Version, socks5Connect, 0 /* reserved */)
if ip := net.ParseIP(host); ip != nil {
if len(ip) == 4 {
buf = append(buf, socks5IP4)
} else {
buf = append(buf, socks5IP6)
}
buf = append(buf, []byte(ip)...)
} else {
buf = append(buf, socks5Domain)
buf = append(buf, byte(len(host)))
buf = append(buf, host...)
}
buf = append(buf, byte(port>>8), byte(port))
if _, err = conn.Write(buf); err != nil {
return nil, errors.New("proxy: failed to write connect request to SOCKS5 proxy at " + s.addr + ": " + err.Error())
}
if _, err = io.ReadFull(conn, buf[:4]); err != nil {
return nil, errors.New("proxy: failed to read connect reply from SOCKS5 proxy at " + s.addr + ": " + err.Error())
}
failure := "unknown error"
if int(buf[1]) < len(socks5Errors) {
failure = socks5Errors[buf[1]]
}
if len(failure) > 0 {
return nil, errors.New("proxy: SOCKS5 proxy at " + s.addr + " failed to connect: " + failure)
}
bytesToDiscard := 0
switch buf[3] {
case socks5IP4:
bytesToDiscard = 4
case socks5IP6:
bytesToDiscard = 16
case socks5Domain:
_, err := io.ReadFull(conn, buf[:1])
if err != nil {
return nil, errors.New("proxy: failed to read domain length from SOCKS5 proxy at " + s.addr + ": " + err.Error())
}
bytesToDiscard = int(buf[0])
default:
return nil, errors.New("proxy: got unknown address type " + strconv.Itoa(int(buf[3])) + " from SOCKS5 proxy at " + s.addr)
}
if cap(buf) < bytesToDiscard {
buf = make([]byte, bytesToDiscard)
} else {
buf = buf[:bytesToDiscard]
}
if _, err = io.ReadFull(conn, buf); err != nil {
return nil, errors.New("proxy: failed to read address from SOCKS5 proxy at " + s.addr + ": " + err.Error())
}
// Also need to discard the port number
if _, err = io.ReadFull(conn, buf[:2]); err != nil {
return nil, errors.New("proxy: failed to read port from SOCKS5 proxy at " + s.addr + ": " + err.Error())
}
closeConn = nil
return conn, nil
}
libgo/go/exp/terminal/terminal.go deleted 100644 → 0
// 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 terminal
import (
"io"
"sync"
)
// 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.
// If it returns a nil newLine, the key press is processed normally.
// Otherwise it returns a replacement line and the new cursor position.
AutoCompleteCallback func(line []byte, pos, key int) (newLine []byte, newPos int)
// 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 string
// line is the current line being entered.
line []byte
// pos is the logical position of the cursor in line
pos int
// echo is true if local echo is enabled
echo 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
}
// 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: prompt,
termWidth: 80,
termHeight: 24,
echo: true,
}
}
const (
keyCtrlD = 4
keyEnter = '\r'
keyEscape = 27
keyBackspace = 127
keyUnknown = 256 + iota
keyUp
keyDown
keyLeft
keyRight
keyAltLeft
keyAltRight
)
// bytesToKey tries to parse a key sequence from b. If successful, it returns
// the key and the remainder of the input. Otherwise it returns -1.
func bytesToKey(b []byte) (int, []byte) {
if len(b) == 0 {
return -1, nil
}
if b[0] != keyEscape {
return int(b[0]), b[1:]
}
if 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:]
}
}
if 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 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' {
return keyUnknown, b[i+1:]
}
}
return -1, b
}
// queue appends data to the end of t.outBuf
func (t *Terminal) queue(data []byte) {
t.outBuf = append(t.outBuf, data...)
}
var eraseUnderCursor = []byte{' ', keyEscape, '[', 'D'}
var space = []byte{' '}
func isPrintable(key int) bool {
return key >= 32 && key < 127
}
// 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 := len(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) {
movement := make([]byte, 3*(up+down+left+right))
m := movement
for i := 0; i < up; i++ {
m[0] = keyEscape
m[1] = '['
m[2] = 'A'
m = m[3:]
}
for i := 0; i < down; i++ {
m[0] = keyEscape
m[1] = '['
m[2] = 'B'
m = m[3:]
}
for i := 0; i < left; i++ {
m[0] = keyEscape
m[1] = '['
m[2] = 'D'
m = m[3:]
}
for i := 0; i < right; i++ {
m[0] = keyEscape
m[1] = '['
m[2] = 'C'
m = m[3:]
}
t.queue(movement)
}
func (t *Terminal) clearLineToRight() {
op := []byte{keyEscape, '[', 'K'}
t.queue(op)
}
const maxLineLength = 4096
// handleKey processes the given key and, optionally, returns a line of text
// that the user has entered.
func (t *Terminal) handleKey(key int) (line string, ok bool) {
switch key {
case keyBackspace:
if t.pos == 0 {
return
}
t.pos--
t.moveCursorToPos(t.pos)
copy(t.line[t.pos:], t.line[1+t.pos:])
t.line = t.line[:len(t.line)-1]
if t.echo {
t.writeLine(t.line[t.pos:])
}
t.queue(eraseUnderCursor)
t.moveCursorToPos(t.pos)
case keyAltLeft:
// move left by a word.
if t.pos == 0 {
return
}
t.pos--
for t.pos > 0 {
if t.line[t.pos] != ' ' {
break
}
t.pos--
}
for t.pos > 0 {
if t.line[t.pos] == ' ' {
t.pos++
break
}
t.pos--
}
t.moveCursorToPos(t.pos)
case keyAltRight:
// move right by a word.
for t.pos < len(t.line) {
if t.line[t.pos] == ' ' {
break
}
t.pos++
}
for t.pos < len(t.line) {
if t.line[t.pos] != ' ' {
break
}
t.pos++
}
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 keyEnter:
t.moveCursorToPos(len(t.line))
t.queue([]byte("\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
default:
if t.AutoCompleteCallback != nil {
t.lock.Unlock()
newLine, newPos := t.AutoCompleteCallback(t.line, t.pos, key)
t.lock.Lock()
if newLine != nil {
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
return
}
}
if !isPrintable(key) {
return
}
if len(t.line) == maxLineLength {
return
}
if len(t.line) == cap(t.line) {
newLine := make([]byte, 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] = byte(key)
if t.echo {
t.writeLine(t.line[t.pos:])
}
t.pos++
t.moveCursorToPos(t.pos)
}
return
}
func (t *Terminal) writeLine(line []byte) {
for len(line) != 0 {
remainingOnLine := t.termWidth - t.cursorX
todo := len(line)
if todo > remainingOnLine {
todo = remainingOnLine
}
t.queue(line[:todo])
t.cursorX += todo
line = line[todo:]
if t.cursorX == t.termWidth {
t.cursorX = 0
t.cursorY++
if t.cursorY > t.maxLine {
t.maxLine = t.cursorY
}
}
}
}
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 t.c.Write(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 = t.c.Write(buf); err != nil {
return
}
t.queue([]byte(t.prompt))
chars := len(t.prompt)
if t.echo {
t.queue(t.line)
chars += len(t.line)
}
t.cursorX = chars % t.termWidth
t.cursorY = chars / t.termWidth
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 = 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([]byte(t.prompt))
t.c.Write(t.outBuf)
t.outBuf = t.outBuf[:0]
}
for {
rest := t.remainder
lineOk := false
for !lineOk {
var key int
key, rest = bytesToKey(rest)
if key < 0 {
break
}
if key == keyCtrlD {
return "", io.EOF
}
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 {
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)]
}
panic("unreachable")
}
// 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 = prompt
}
func (t *Terminal) SetSize(width, height int) {
t.lock.Lock()
defer t.lock.Unlock()
t.termWidth, t.termHeight = width, height
}
libgo/go/exp/terminal/terminal_test.go deleted 100644 → 0
// 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 terminal
import (
"io"
"testing"
)
type MockTerminal struct {
toSend []byte
bytesPerRead int
received []byte
}
func (c *MockTerminal) Read(data []byte) (n int, err error) {
n = len(data)
if n == 0 {
return
}
if n > len(c.toSend) {
n = len(c.toSend)
}
if n == 0 {
return 0, io.EOF
}
if c.bytesPerRead > 0 && n > c.bytesPerRead {
n = c.bytesPerRead
}
copy(data, c.toSend[:n])
c.toSend = c.toSend[n:]
return
}
func (c *MockTerminal) Write(data []byte) (n int, err error) {
c.received = append(c.received, data...)
return len(data), nil
}
func TestClose(t *testing.T) {
c := &MockTerminal{}
ss := NewTerminal(c, "> ")
line, err := ss.ReadLine()
if line != "" {
t.Errorf("Expected empty line but got: %s", line)
}
if err != io.EOF {
t.Errorf("Error should have been EOF but got: %s", err)
}
}
var keyPressTests = []struct {
in string
line string
err error
}{
{
"",
"",
io.EOF,
},
{
"\r",
"",
nil,
},
{
"foo\r",
"foo",
nil,
},
{
"a\x1b[Cb\r", // right
"ab",
nil,
},
{
"a\x1b[Db\r", // left
"ba",
nil,
},
{
"a\177b\r", // backspace
"b",
nil,
},
}
func TestKeyPresses(t *testing.T) {
for i, test := range keyPressTests {
for j := 0; j < len(test.in); j++ {
c := &MockTerminal{
toSend: []byte(test.in),
bytesPerRead: j,
}
ss := NewTerminal(c, "> ")
line, err := ss.ReadLine()
if line != test.line {
t.Errorf("Line resulting from test %d (%d bytes per read) was '%s', expected '%s'", i, j, line, test.line)
break
}
if err != test.err {
t.Errorf("Error resulting from test %d (%d bytes per read) was '%v', expected '%v'", i, j, err, test.err)
break
}
}
}
}
libgo/go/exp/terminal/util.go deleted 100644 → 0
// 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.
// +build linux
// 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 (
"io"
"syscall"
"unsafe"
)
// State contains the state of a terminal.
type State struct {
termios syscall.Termios
}
// IsTerminal returns true if the given file descriptor is a terminal.
func IsTerminal(fd int) bool {
var termios syscall.Termios
err := syscall.Tcgetattr(fd, &termios)
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) {
var oldState State
if err := syscall.Tcgetattr(fd, &oldState.termios); err != nil {
return nil, err
}
newState := oldState.termios
newState.Iflag &^= syscall.ISTRIP | syscall.INLCR | syscall.ICRNL | syscall.IGNCR | syscall.IXON | syscall.IXOFF
newState.Lflag &^= syscall.ECHO | syscall.ICANON | syscall.ISIG
if err := syscall.Tcsetattr(fd, syscall.TCSANOW, &newState); err != nil {
return nil, err
}
return &oldState, nil
}
// Restore restores the terminal connected to the given file descriptor to a
// previous state.
func Restore(fd int, state *State) error {
err := syscall.Tcsetattr(fd, syscall.TCSANOW, &state.termios)
return err
}
//extern ioctl
func ioctl(int, int, unsafe.Pointer) int
// GetSize returns the dimensions of the given terminal.
func GetSize(fd int) (width, height int, err error) {
var dimensions [4]uint16
if ioctl(fd, syscall.TIOCGWINSZ, unsafe.Pointer(&dimensions)) < 0 {
return -1, -1, syscall.GetErrno()
}
return int(dimensions[1]), int(dimensions[0]), 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) {
var oldState syscall.Termios
if err := syscall.Tcgetattr(fd, &oldState); err != nil {
return nil, err
}
newState := oldState
newState.Lflag &^= syscall.ECHO
if err := syscall.Tcsetattr(fd, syscall.TCSANOW, &newState); err != nil {
return nil, err
}
defer func() {
syscall.Tcsetattr(fd, syscall.TCSANOW, &oldState)
}()
var buf [16]byte
var ret []byte
for {
n, err := syscall.Read(fd, buf[:])
if err != nil {
return nil, err
}
if n == 0 {
if len(ret) == 0 {
return nil, io.EOF
}
break
}
if buf[n-1] == '\n' {
n--
}
ret = append(ret, buf[:n]...)
if n < len(buf) {
break
}
}
return ret, nil
}
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment