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cleanups:

Browse Source 
get rid of _ on private names in net.
	fix os_test file name list.
	newline not needed on Errorf.

R=r
DELTA=305  (34 added, 2 deleted, 269 changed)
OCL=25047
CL=25047
This commit is contained in:
Russ Cox 2009-02-15 14:18:39 -08:00
parent 78a6d68c86
commit d8921c5294
13 changed files with 275 additions and 243 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
src/lib/net/dnsclient.go
View File

@ -84,7 +84,7 @@ func _Exchange(cfg *DNS_Config, c Conn, name string) (m *DNS_Msg, err *os.Error)
// Find answer for name in dns message.
// On return, if err == nil, addrs != nil.
// TODO(rsc): Maybe return [][]byte (==[]IPAddr) instead?
func _Answer(name string, dns *DNS_Msg) (addrs []string, err *os.Error) {
func answer(name string, dns *DNS_Msg) (addrs []string, err *os.Error) {
addrs = make([]string, 0, len(dns.answer));
if dns.rcode == DNS_RcodeNameError && dns.authoritative {
@ -134,8 +134,8 @@ Cname:
}
// Do a lookup for a single name, which must be rooted
// (otherwise _Answer will not find the answers).
func _TryOneName(cfg *DNS_Config, name string) (addrs []string, err *os.Error) {
// (otherwise answer will not find the answers).
func tryOneName(cfg *DNS_Config, name string) (addrs []string, err *os.Error) {
err = DNS_NoServers;
for i := 0; i < len(cfg.servers); i++ {
// Calling Dial here is scary -- we have to be sure
@ -155,7 +155,7 @@ func _TryOneName(cfg *DNS_Config, name string) (addrs []string, err *os.Error) {
err = merr;
continue;
}
addrs, aerr := _Answer(name, msg);
addrs, aerr := answer(name, msg);
if aerr != nil && aerr != DNS_NameNotFound {
err = aerr;
continue;
@ -167,7 +167,7 @@ func _TryOneName(cfg *DNS_Config, name string) (addrs []string, err *os.Error) {
var cfg *DNS_Config
func _LoadConfig() {
func loadConfig() {
cfg = DNS_ReadConfig();
}
@ -175,7 +175,7 @@ func LookupHost(name string) (name1 string, addrs []string, err *os.Error) {
// TODO(rsc): Pick out obvious non-DNS names to avoid
// sending stupid requests to the server?
once.Do(_LoadConfig);
once.Do(loadConfig);
if cfg == nil {
err = DNS_MissingConfig;
return;
@ -190,7 +190,7 @@ func LookupHost(name string) (name1 string, addrs []string, err *os.Error) {
rname += ".";
}
// Can try as ordinary name.
addrs, aerr := _TryOneName(cfg, rname);
addrs, aerr := tryOneName(cfg, rname);
if aerr == nil {
return rname, addrs, nil;
}
@ -206,7 +206,7 @@ func LookupHost(name string) (name1 string, addrs []string, err *os.Error) {
if newname[len(newname)-1] != '.' {
newname += "."
}
addrs, aerr := _TryOneName(cfg, newname);
addrs, aerr := tryOneName(cfg, newname);
if aerr == nil {
return newname, addrs, nil;
}

15
src/lib/net/dnsconfig.go
View File

@ -27,7 +27,8 @@ type DNS_Config struct {
// of the host name to get the default search domain.
// We assume it's in resolv.conf anyway.
func DNS_ReadConfig() *DNS_Config {
file := _Open("/etc/resolv.conf");
// TODO(rsc): 6g won't let me use "file :="
var file = open("/etc/resolv.conf");
if file == nil {
return nil
}
@ -39,8 +40,8 @@ func DNS_ReadConfig() *DNS_Config {
conf.attempts = 1;
conf.rotate = false;
var err *os.Error;
for line, ok := file.ReadLine(); ok; line, ok = file.ReadLine() {
f := _GetFields(line);
for line, ok := file.readLine(); ok; line, ok = file.readLine() {
f := getFields(line);
if len(f) < 1 {
continue;
}
@ -79,19 +80,19 @@ func DNS_ReadConfig() *DNS_Config {
s := f[i];
switch {
case len(s) >= 6 && s[0:6] == "ndots:":
n, i, ok := _Dtoi(s, 6);
n, i, ok := dtoi(s, 6);
if n < 1 {
n = 1
}
conf.ndots = n;
case len(s) >= 8 && s[0:8] == "timeout:":
n, i, ok := _Dtoi(s, 8);
n, i, ok := dtoi(s, 8);
if n < 1 {
n = 1
}
conf.timeout = n;
case len(s) >= 8 && s[0:9] == "attempts:":
n, i, ok := _Dtoi(s, 9);
n, i, ok := dtoi(s, 9);
if n < 1 {
n = 1
}
@ -102,7 +103,7 @@ func DNS_ReadConfig() *DNS_Config {
}
}
}
file.Close();
file.close();
return conf
}

92
src/lib/net/dnsmsg.go
View File

@ -29,7 +29,7 @@ import (
"reflect";
)
// _Packet formats
// Packet formats
// Wire constants.
const (
@ -188,7 +188,7 @@ type DNS_RR_A struct {
}
// _Packing and unpacking.
// Packing and unpacking.
//
// All the packers and unpackers take a (msg []byte, off int)
// and return (off1 int, ok bool). If they return ok==false, they
@ -212,10 +212,10 @@ var rr_mk = map[int] func()DNS_RR (
DNS_TypeA: func() DNS_RR { return new(DNS_RR_A) },
)
// _Pack a domain name s into msg[off:].
// Pack a domain name s into msg[off:].
// Domain names are a sequence of counted strings
// split at the dots. They end with a zero-length string.
func _PackDomainName(s string, msg []byte, off int) (off1 int, ok bool) {
func packDomainName(s string, msg []byte, off int) (off1 int, ok bool) {
// Add trailing dot to canonicalize name.
if n := len(s); n == 0 || s[n-1] != '.' {
s += ".";
@ -251,7 +251,7 @@ func _PackDomainName(s string, msg []byte, off int) (off1 int, ok bool) {
return off, true
}
// _Unpack a domain name.
// Unpack a domain name.
// In addition to the simple sequences of counted strings above,
// domain names are allowed to refer to strings elsewhere in the
// packet, to avoid repeating common suffixes when returning
@ -264,7 +264,7 @@ func _PackDomainName(s string, msg []byte, off int) (off1 int, ok bool) {
// which is where the next record will start.
// In theory, the pointers are only allowed to jump backward.
// We let them jump anywhere and stop jumping after a while.
func _UnpackDomainName(msg []byte, off int) (s string, off1 int, ok bool) {
func unpackDomainName(msg []byte, off int) (s string, off1 int, ok bool) {
s = "";
ptr := 0; // number of pointers followed
Loop:
@ -315,9 +315,9 @@ Loop:
return s, off1, true
}
// _Pack a reflect.StructValue into msg. Struct members can only be uint16, uint32, string,
// Pack a reflect.StructValue into msg. Struct members can only be uint16, uint32, string,
// and other (often anonymous) structs.
func _PackStructValue(val reflect.StructValue, msg []byte, off int) (off1 int, ok bool) {
func packStructValue(val reflect.StructValue, msg []byte, off int) (off1 int, ok bool) {
for i := 0; i < val.Len(); i++ {
fld := val.Field(i);
name, typ, tag, xxx := val.Type().(reflect.StructType).Field(i);
@ -326,7 +326,7 @@ func _PackStructValue(val reflect.StructValue, msg []byte, off int) (off1 int, o
fmt.Fprintf(os.Stderr, "net: dns: unknown packing type %v", fld.Type());
return len(msg), false;
case reflect.StructKind:
off, ok = _PackStructValue(fld.(reflect.StructValue), msg, off);
off, ok = packStructValue(fld.(reflect.StructValue), msg, off);
case reflect.Uint16Kind:
i := fld.(reflect.Uint16Value).Get();
if off+2 > len(msg) {
@ -354,7 +354,7 @@ func _PackStructValue(val reflect.StructValue, msg []byte, off int) (off1 int, o
fmt.Fprintf(os.Stderr, "net: dns: unknown string tag %v", tag);
return len(msg), false;
case "domain-name":
off, ok = _PackDomainName(s, msg, off);
off, ok = packDomainName(s, msg, off);
if !ok {
return len(msg), false
}
@ -375,15 +375,15 @@ func _PackStructValue(val reflect.StructValue, msg []byte, off int) (off1 int, o
return off, true
}
func _PackStruct(any interface{}, msg []byte, off int) (off1 int, ok bool) {
func packStruct(any interface{}, msg []byte, off int) (off1 int, ok bool) {
val := reflect.NewValue(any).(reflect.PtrValue).Sub().(reflect.StructValue);
off, ok = _PackStructValue(val, msg, off);
off, ok = packStructValue(val, msg, off);
return off, ok
}
// _Unpack a reflect.StructValue from msg.
// Same restrictions as _PackStructValue.
func _UnpackStructValue(val reflect.StructValue, msg []byte, off int) (off1 int, ok bool) {
// Unpack a reflect.StructValue from msg.
// Same restrictions as packStructValue.
func unpackStructValue(val reflect.StructValue, msg []byte, off int) (off1 int, ok bool) {
for i := 0; i < val.Len(); i++ {
name, typ, tag, xxx := val.Type().(reflect.StructType).Field(i);
fld := val.Field(i);
@ -392,7 +392,7 @@ func _UnpackStructValue(val reflect.StructValue, msg []byte, off int) (off1 int,
fmt.Fprintf(os.Stderr, "net: dns: unknown packing type %v", fld.Type());
return len(msg), false;
case reflect.StructKind:
off, ok = _UnpackStructValue(fld.(reflect.StructValue), msg, off);
off, ok = unpackStructValue(fld.(reflect.StructValue), msg, off);
case reflect.Uint16Kind:
if off+2 > len(msg) {
return len(msg), false
@ -414,7 +414,7 @@ func _UnpackStructValue(val reflect.StructValue, msg []byte, off int) (off1 int,
fmt.Fprintf(os.Stderr, "net: dns: unknown string tag %v", tag);
return len(msg), false;
case "domain-name":
s, off, ok = _UnpackDomainName(msg, off);
s, off, ok = unpackDomainName(msg, off);
if !ok {
return len(msg), false
}
@ -437,9 +437,9 @@ func _UnpackStructValue(val reflect.StructValue, msg []byte, off int) (off1 int,
return off, true
}
func _UnpackStruct(any interface{}, msg []byte, off int) (off1 int, ok bool) {
func unpackStruct(any interface{}, msg []byte, off int) (off1 int, ok bool) {
val := reflect.NewValue(any).(reflect.PtrValue).Sub().(reflect.StructValue);
off, ok = _UnpackStructValue(val, msg, off);
off, ok = unpackStructValue(val, msg, off);
return off, ok
}
@ -447,7 +447,7 @@ func _UnpackStruct(any interface{}, msg []byte, off int) (off1 int, ok bool) {
// Doesn't care about the string tag "domain-name",
// but does look for an "ipv4" tag on uint32 variables,
// printing them as IP addresses.
func _PrintStructValue(val reflect.StructValue) string {
func printStructValue(val reflect.StructValue) string {
s := "{";
for i := 0; i < val.Len(); i++ {
if i > 0 {
@ -461,7 +461,7 @@ func _PrintStructValue(val reflect.StructValue) string {
kind := fld.Kind();
switch {
case kind == reflect.StructKind:
s += _PrintStructValue(fld.(reflect.StructValue));
s += printStructValue(fld.(reflect.StructValue));
case kind == reflect.Uint32Kind && tag == "ipv4":
i := fld.(reflect.Uint32Value).Get();
s += fmt.Sprintf("%d.%d.%d.%d", (i>>24)&0xFF, (i>>16)&0xFF, (i>>8)&0xFF, i&0xFF);
@ -473,37 +473,37 @@ func _PrintStructValue(val reflect.StructValue) string {
return s;
}
func _PrintStruct(any interface{}) string {
func printStruct(any interface{}) string {
val := reflect.NewValue(any).(reflect.PtrValue).Sub().(reflect.StructValue);
s := _PrintStructValue(val);
s := printStructValue(val);
return s
}
// Resource record packer.
func _PackRR(rr DNS_RR, msg []byte, off int) (off2 int, ok bool) {
func packRR(rr DNS_RR, msg []byte, off int) (off2 int, ok bool) {
var off1 int;
// pack twice, once to find end of header
// and again to find end of packet.
// a bit inefficient but this doesn't need to be fast.
// off1 is end of header
// off2 is end of rr
off1, ok = _PackStruct(rr.Header(), msg, off);
off2, ok = _PackStruct(rr, msg, off);
off1, ok = packStruct(rr.Header(), msg, off);
off2, ok = packStruct(rr, msg, off);
if !ok {
return len(msg), false
}
// pack a third time; redo header with correct data length
rr.Header().rdlength = uint16(off2 - off1);
_PackStruct(rr.Header(), msg, off);
packStruct(rr.Header(), msg, off);
return off2, true
}
// Resource record unpacker.
func _UnpackRR(msg []byte, off int) (rr DNS_RR, off1 int, ok bool) {
func unpackRR(msg []byte, off int) (rr DNS_RR, off1 int, ok bool) {
// unpack just the header, to find the rr type and length
var h DNS_RR_Header;
off0 := off;
if off, ok = _UnpackStruct(&h, msg, off); !ok {
if off, ok = unpackStruct(&h, msg, off); !ok {
return nil, len(msg), false
}
end := off+int(h.rdlength);
@ -515,7 +515,7 @@ func _UnpackRR(msg []byte, off int) (rr DNS_RR, off1 int, ok bool) {
return &h, end, true
}
rr = mk();
off, ok = _UnpackStruct(rr, msg, off0);
off, ok = unpackStruct(rr, msg, off0);
if off != end {
return &h, end, true
}
@ -584,20 +584,20 @@ func (dns *DNS_Msg) Pack() (msg []byte, ok bool) {
// big enough to hurt the allocator.
msg = make([]byte, 2000);
// _Pack it in: header and then the pieces.
// Pack it in: header and then the pieces.
off := 0;
off, ok = _PackStruct(&dh, msg, off);
off, ok = packStruct(&dh, msg, off);
for i := 0; i < len(question); i++ {
off, ok = _PackStruct(&question[i], msg, off);
off, ok = packStruct(&question[i], msg, off);
}
for i := 0; i < len(answer); i++ {
off, ok = _PackStruct(answer[i], msg, off);
off, ok = packStruct(answer[i], msg, off);
}
for i := 0; i < len(ns); i++ {
off, ok = _PackStruct(ns[i], msg, off);
off, ok = packStruct(ns[i], msg, off);
}
for i := 0; i < len(extra); i++ {
off, ok = _PackStruct(extra[i], msg, off);
off, ok = packStruct(extra[i], msg, off);
}
if !ok {
return nil, false
@ -610,7 +610,7 @@ func (dns *DNS_Msg) Unpack(msg []byte) bool {
var dh _DNS_Header;
off := 0;
var ok bool;
if off, ok = _UnpackStruct(&dh, msg, off); !ok {
if off, ok = unpackStruct(&dh, msg, off); !ok {
return false
}
dns.id = dh.id;
@ -629,16 +629,16 @@ func (dns *DNS_Msg) Unpack(msg []byte) bool {
dns.extra = make([]DNS_RR, dh.arcount);
for i := 0; i < len(dns.question); i++ {
off, ok = _UnpackStruct(&dns.question[i], msg, off);
off, ok = unpackStruct(&dns.question[i], msg, off);
}
for i := 0; i < len(dns.answer); i++ {
dns.answer[i], off, ok = _UnpackRR(msg, off);
dns.answer[i], off, ok = unpackRR(msg, off);
}
for i := 0; i < len(dns.ns); i++ {
dns.ns[i], off, ok = _UnpackRR(msg, off);
dns.ns[i], off, ok = unpackRR(msg, off);
}
for i := 0; i < len(dns.extra); i++ {
dns.extra[i], off, ok = _UnpackRR(msg, off);
dns.extra[i], off, ok = unpackRR(msg, off);
}
if !ok {
return false
@ -650,29 +650,29 @@ func (dns *DNS_Msg) Unpack(msg []byte) bool {
}
func (dns *DNS_Msg) String() string {
s := "DNS: "+_PrintStruct(&dns._DNS_Msg_Top)+"\n";
s := "DNS: "+printStruct(&dns._DNS_Msg_Top)+"\n";
if len(dns.question) > 0 {
s += "-- Questions\n";
for i := 0; i < len(dns.question); i++ {
s += _PrintStruct(&dns.question[i])+"\n";
s += printStruct(&dns.question[i])+"\n";
}
}
if len(dns.answer) > 0 {
s += "-- Answers\n";
for i := 0; i < len(dns.answer); i++ {
s += _PrintStruct(dns.answer[i])+"\n";
s += printStruct(dns.answer[i])+"\n";
}
}
if len(dns.ns) > 0 {
s += "-- Name servers\n";
for i := 0; i < len(dns.ns); i++ {
s += _PrintStruct(dns.ns[i])+"\n";
s += printStruct(dns.ns[i])+"\n";
}
}
if len(dns.extra) > 0 {
s += "-- Extra\n";
for i := 0; i < len(dns.extra); i++ {
s += _PrintStruct(dns.extra[i])+"\n";
s += printStruct(dns.extra[i])+"\n";
}
}
return s;

114
src/lib/net/fd.go
View File

@ -13,21 +13,23 @@ import (
"syscall";
)
// Network file descriptor. Only intended to be used internally,
// but have to export to make it available in other files implementing package net.
type FD struct {
// Network file descriptor.
type netFD struct {
// immutable until Close
fd int64;
osfd *os.FD;
cr chan *FD;
cw chan *FD;
cr chan *netFD;
cw chan *netFD;
net string;
laddr string;
raddr string;
// owned by fd wait server
ncr, ncw int;
}
// Make reads and writes on fd return EAGAIN instead of blocking.
func _SetNonblock(fd int64) *os.Error {
func setNonblock(fd int64) *os.Error {
flags, e := syscall.Fcntl(fd, syscall.F_GETFL, 0);
if e != 0 {
return os.ErrnoToError(e)
@ -40,11 +42,11 @@ func _SetNonblock(fd int64) *os.Error {
}
// A _PollServer helps FDs determine when to retry a non-blocking
// A pollServer helps FDs determine when to retry a non-blocking
// read or write after they get EAGAIN. When an FD needs to wait,
// send the fd on s.cr (for a read) or s.cw (for a write) to pass the
// request to the poll server. Then receive on fd.cr/fd.cw.
// When the _PollServer finds that i/o on FD should be possible
// When the pollServer finds that i/o on FD should be possible
// again, it will send fd on fd.cr/fd.cw to wake any waiting processes.
// This protocol is implemented as s.WaitRead() and s.WaitWrite().
//
@ -54,8 +56,8 @@ func _SetNonblock(fd int64) *os.Error {
// To resolve this, the poll server waits not just on the FDs it has
// been given but also its own pipe. After sending on the
// buffered channel s.cr/s.cw, WaitRead/WaitWrite writes a
// byte to the pipe, causing the _PollServer's poll system call to
// return. In response to the pipe being readable, the _PollServer
// byte to the pipe, causing the pollServer's poll system call to
// return. In response to the pipe being readable, the pollServer
// re-polls its request channels.
//
// Note that the ordering is "send request" and then "wake up server".
@ -65,32 +67,32 @@ func _SetNonblock(fd int64) *os.Error {
// to send the request. Because the send must complete before the wakeup,
// the request channel must be buffered. A buffer of size 1 is sufficient
// for any request load. If many processes are trying to submit requests,
// one will succeed, the _PollServer will read the request, and then the
// one will succeed, the pollServer will read the request, and then the
// channel will be empty for the next process's request. A larger buffer
// might help batch requests.
type _PollServer struct {
cr, cw chan *FD; // buffered >= 1
type pollServer struct {
cr, cw chan *netFD; // buffered >= 1
pr, pw *os.FD;
pending map[int64] *FD;
pending map[int64] *netFD;
poll *Pollster; // low-level OS hooks
}
func (s *_PollServer) Run();
func (s *pollServer) Run();
func _NewPollServer() (s *_PollServer, err *os.Error) {
s = new(_PollServer);
s.cr = make(chan *FD, 1);
s.cw = make(chan *FD, 1);
func newPollServer() (s *pollServer, err *os.Error) {
s = new(pollServer);
s.cr = make(chan *netFD, 1);
s.cw = make(chan *netFD, 1);
if s.pr, s.pw, err = os.Pipe(); err != nil {
return nil, err
}
if err = _SetNonblock(s.pr.Fd()); err != nil {
if err = setNonblock(s.pr.Fd()); err != nil {
Error:
s.pr.Close();
s.pw.Close();
return nil, err
}
if err = _SetNonblock(s.pw.Fd()); err != nil {
if err = setNonblock(s.pw.Fd()); err != nil {
goto Error
}
if s.poll, err = NewPollster(); err != nil {
@ -100,14 +102,14 @@ func _NewPollServer() (s *_PollServer, err *os.Error) {
s.poll.Close();
goto Error
}
s.pending = make(map[int64] *FD);
s.pending = make(map[int64] *netFD);
go s.Run();
return s, nil
}
func (s *_PollServer) AddFD(fd *FD, mode int) {
func (s *pollServer) AddFD(fd *netFD, mode int) {
if err := s.poll.AddFD(fd.fd, mode, false); err != nil {
print("_PollServer AddFD: ", err.String(), "\n");
print("pollServer AddFD: ", err.String(), "\n");
return
}
@ -121,7 +123,7 @@ func (s *_PollServer) AddFD(fd *FD, mode int) {
s.pending[key] = fd
}
func (s *_PollServer) LookupFD(fd int64, mode int) *FD {
func (s *pollServer) LookupFD(fd int64, mode int) *netFD {
key := fd << 1;
if mode == 'w' {
key++;
@ -134,12 +136,12 @@ func (s *_PollServer) LookupFD(fd int64, mode int) *FD {
return netfd
}
func (s *_PollServer) Run() {
func (s *pollServer) Run() {
var scratch [100]byte;
for {
fd, mode, err := s.poll.WaitFD();
if err != nil {
print("_PollServer WaitFD: ", err.String(), "\n");
print("pollServer WaitFD: ", err.String(), "\n");
return
}
if fd == s.pr.Fd() {
@ -158,7 +160,7 @@ func (s *_PollServer) Run() {
} else {
netfd := s.LookupFD(fd, mode);
if netfd == nil {
print("_PollServer: unexpected wakeup for fd=", netfd, " mode=", string(mode), "\n");
print("pollServer: unexpected wakeup for fd=", netfd, " mode=", string(mode), "\n");
continue
}
if mode == 'r' {
@ -176,18 +178,18 @@ func (s *_PollServer) Run() {
}
}
func (s *_PollServer) Wakeup() {
func (s *pollServer) Wakeup() {
var b [1]byte;
s.pw.Write(b)
}
func (s *_PollServer) WaitRead(fd *FD) {
func (s *pollServer) WaitRead(fd *netFD) {
s.cr <- fd;
s.Wakeup();
<-fd.cr
}
func (s *_PollServer) WaitWrite(fd *FD) {
func (s *pollServer) WaitWrite(fd *netFD) {
s.cr <- fd;
s.Wakeup();
<-fd.cr
@ -195,34 +197,37 @@ func (s *_PollServer) WaitWrite(fd *FD) {
// Network FD methods.
// All the network FDs use a single _PollServer.
// All the network FDs use a single pollServer.
var pollserver *_PollServer
var pollserver *pollServer
func _StartServer() {
p, err := _NewPollServer();
p, err := newPollServer();
if err != nil {
print("Start _PollServer: ", err.String(), "\n")
print("Start pollServer: ", err.String(), "\n")
}
pollserver = p
}
func NewFD(fd int64) (f *FD, err *os.Error) {
func newFD(fd int64, net, laddr, raddr string) (f *netFD, err *os.Error) {
if pollserver == nil {
once.Do(_StartServer);
}
if err = _SetNonblock(fd); err != nil {
if err = setNonblock(fd); err != nil {
return nil, err
}
f = new(FD);
f = new(netFD);
f.fd = fd;
f.osfd = os.NewFD(fd, "socket");
f.cr = make(chan *FD, 1);
f.cw = make(chan *FD, 1);
f.net = net;
f.laddr = laddr;
f.raddr = raddr;
f.osfd = os.NewFD(fd, "net: " + net + " " + laddr + " " + raddr);
f.cr = make(chan *netFD, 1);
f.cw = make(chan *netFD, 1);
return f, nil
}
func (fd *FD) Close() *os.Error {
func (fd *netFD) Close() *os.Error {
if fd == nil || fd.osfd == nil {
return os.EINVAL
}
@ -232,7 +237,7 @@ func (fd *FD) Close() *os.Error {
return e
}
func (fd *FD) Read(p []byte) (n int, err *os.Error) {
func (fd *netFD) Read(p []byte) (n int, err *os.Error) {
if fd == nil || fd.osfd == nil {
return -1, os.EINVAL
}
@ -244,7 +249,7 @@ func (fd *FD) Read(p []byte) (n int, err *os.Error) {
return n, err
}
func (fd *FD) Write(p []byte) (n int, err *os.Error) {
func (fd *netFD) Write(p []byte) (n int, err *os.Error) {
if fd == nil || fd.osfd == nil {
return -1, os.EINVAL
}
@ -268,19 +273,30 @@ func (fd *FD) Write(p []byte) (n int, err *os.Error) {
return nn, err
}
func (fd *FD) Accept(sa *syscall.Sockaddr) (nfd *FD, err *os.Error) {
func sockaddrToHostPort(sa *syscall.Sockaddr) (hostport string, err *os.Error)
func (fd *netFD) Accept(sa *syscall.Sockaddr) (nfd *netFD, err *os.Error) {
if fd == nil || fd.osfd == nil {
return nil, os.EINVAL
}
s, e := syscall.Accept(fd.fd, sa);
for e == syscall.EAGAIN {
var s, e int64;
for {
s, e = syscall.Accept(fd.fd, sa);
if e != syscall.EAGAIN {
break;
}
pollserver.WaitRead(fd);
s, e = syscall.Accept(fd.fd, sa)
}
if e != 0 {
return nil, os.ErrnoToError(e)
}
if nfd, err = NewFD(s); err != nil {
raddr, err1 := sockaddrToHostPort(sa);
if err1 != nil {
raddr = "invalid-address";
}
if nfd, err = newFD(s, fd.net, fd.laddr, raddr); err != nil {
syscall.Close(s);
return nil, err
}

44
src/lib/net/ip.go
View File

@ -22,7 +22,7 @@ const (
)
// Make the 4 bytes into an IPv4 address (in IPv6 form)
func _MakeIPv4(a, b, c, d byte) []byte {
func makeIPv4(a, b, c, d byte) []byte {
p := make([]byte, IPv6len);
for i := 0; i < 10; i++ {
p[i] = 0
@ -40,10 +40,10 @@ func _MakeIPv4(a, b, c, d byte) []byte {
var IPv4bcast, IPv4allsys, IPv4allrouter, IPv4prefix, IPallbits, IPnoaddr []byte
func init() {
IPv4bcast = _MakeIPv4(0xff, 0xff, 0xff, 0xff);
IPv4allsys = _MakeIPv4(0xe0, 0x00, 0x00, 0x01);
IPv4allrouter = _MakeIPv4(0xe0, 0x00, 0x00, 0x02);
IPv4prefix = _MakeIPv4(0, 0, 0, 0);
IPv4bcast = makeIPv4(0xff, 0xff, 0xff, 0xff);
IPv4allsys = makeIPv4(0xe0, 0x00, 0x00, 0x01);
IPv4allrouter = makeIPv4(0xe0, 0x00, 0x00, 0x02);
IPv4prefix = makeIPv4(0, 0, 0, 0);
IPallbits = make([]byte, IPv6len);
for i := 0; i < IPv6len; i++ {
IPallbits[i] = 0xff
@ -52,7 +52,7 @@ func init() {
}
// Is p all zeros?
func _IsZeros(p []byte) bool {
func isZeros(p []byte) bool {
for i := 0; i < len(p); i++ {
if p[i] != 0 {
return false
@ -68,7 +68,7 @@ func ToIPv4(p []byte) []byte {
return p
}
if len(p) == IPv6len
&& _IsZeros(p[0:10])
&& isZeros(p[0:10])
&& p[10] == 0xff
&& p[11] == 0xff {
return p[12:16]
@ -79,7 +79,7 @@ func ToIPv4(p []byte) []byte {
// Convert p to IPv6 form.
func ToIPv6(p []byte) []byte {
if len(p) == IPv4len {
return _MakeIPv4(p[0], p[1], p[2], p[3])
return makeIPv4(p[0], p[1], p[2], p[3])
}
if len(p) == IPv6len {
return p
@ -89,9 +89,9 @@ func ToIPv6(p []byte) []byte {
// Default route masks for IPv4.
var (
ClassAMask = _MakeIPv4(0xff, 0, 0, 0);
ClassBMask = _MakeIPv4(0xff, 0xff, 0, 0);
ClassCMask = _MakeIPv4(0xff, 0xff, 0xff, 0);
ClassAMask = makeIPv4(0xff, 0, 0, 0);
ClassBMask = makeIPv4(0xff, 0xff, 0, 0);
ClassCMask = makeIPv4(0xff, 0xff, 0xff, 0);
)
func DefaultMask(p []byte) []byte {
@ -204,7 +204,7 @@ func IPToString(p []byte) string {
// If mask is a sequence of 1 bits followed by 0 bits,
// return the number of 1 bits.
func _SimpleMaskLength(mask []byte) int {
func simpleMaskLength(mask []byte) int {
var i int;
for i = 0; i < len(mask); i++ {
if mask[i] != 0xFF {
@ -231,12 +231,12 @@ func _SimpleMaskLength(mask []byte) int {
func MaskToString(mask []byte) string {
switch len(mask) {
case 4:
n := _SimpleMaskLength(mask);
n := simpleMaskLength(mask);
if n >= 0 {
return itod(uint(n+(IPv6len-IPv4len)*8))
}
case 16:
n := _SimpleMaskLength(mask);
n := simpleMaskLength(mask);
if n >= 0 {
return itod(uint(n))
}
@ -245,7 +245,7 @@ func MaskToString(mask []byte) string {
}
// Parse IPv4 address (d.d.d.d).
func _ParseIPv4(s string) []byte {
func parseIPv4(s string) []byte {
var p [IPv4len]byte;
i := 0;
for j := 0; j < IPv4len; j++ {
@ -259,7 +259,7 @@ func _ParseIPv4(s string) []byte {
n int;
ok bool
)
n, i, ok = _Dtoi(s, i);
n, i, ok = dtoi(s, i);
if !ok || n > 0xFF {
return nil
}
@ -268,7 +268,7 @@ func _ParseIPv4(s string) []byte {
if i != len(s) {
return nil
}
return _MakeIPv4(p[0], p[1], p[2], p[3])
return makeIPv4(p[0], p[1], p[2], p[3])
}
// Parse IPv6 address. Many forms.
@ -279,7 +279,7 @@ func _ParseIPv4(s string) []byte {
// * A run of zeros can be replaced with "::".
// * The last 32 bits can be in IPv4 form.
// Thus, ::ffff:1.2.3.4 is the IPv4 address 1.2.3.4.
func _ParseIPv6(s string) []byte {
func parseIPv6(s string) []byte {
p := make([]byte, 16);
ellipsis := -1; // position of ellipsis in p
i := 0; // index in string s
@ -298,7 +298,7 @@ func _ParseIPv6(s string) []byte {
j := 0;
L: for j < IPv6len {
// Hex number.
n, i1, ok := _Xtoi(s, i);
n, i1, ok := xtoi(s, i);
if !ok || n > 0xFFFF {
return nil
}
@ -313,7 +313,7 @@ L: for j < IPv6len {
// Not enough room.
return nil
}
p4 := _ParseIPv4(s[i:len(s)]);
p4 := parseIPv4(s[i:len(s)]);
if p4 == nil {
return nil
}
@ -378,10 +378,10 @@ L: for j < IPv6len {
}
func ParseIP(s string) []byte {
p := _ParseIPv4(s);
p := parseIPv4(s);
if p != nil {
return p
}
return _ParseIPv6(s)
return parseIPv6(s)
}

10
src/lib/net/ip_test.go
View File

@ -9,7 +9,7 @@ import (
"testing"
)
func _IPv4(a, b, c, d byte) []byte {
func ipv4(a, b, c, d byte) []byte {
return []byte( 0,0,0,0, 0,0,0,0, 0,0,255,255, a,b,c,d )
}
@ -33,14 +33,14 @@ type parseIPTest struct {
out []byte;
}
var parseiptests = []parseIPTest (
parseIPTest("127.0.1.2", _IPv4(127, 0, 1, 2)),
parseIPTest("127.0.0.1", _IPv4(127, 0, 0, 1)),
parseIPTest("127.0.1.2", ipv4(127, 0, 1, 2)),
parseIPTest("127.0.0.1", ipv4(127, 0, 0, 1)),
parseIPTest("127.0.0.256", nil),
parseIPTest("abc", nil),
parseIPTest("::ffff:127.0.0.1", _IPv4(127, 0, 0, 1)),
parseIPTest("::ffff:127.0.0.1", ipv4(127, 0, 0, 1)),
parseIPTest("2001:4860:0:2001::68",
[]byte(0x20,0x01, 0x48,0x60, 0,0, 0x20,0x01, 0,0, 0,0, 0,0, 0x00,0x68)),
parseIPTest("::ffff:4a7d:1363", _IPv4(74, 125, 19, 99)),
parseIPTest("::ffff:4a7d:1363", ipv4(74, 125, 19, 99)),
)
func TestParseIP(t *testing.T) {

139
src/lib/net/net.go
View File

@ -18,14 +18,14 @@ var (
UnknownHost = os.NewError("unknown host");
DNS_Error = os.NewError("dns error looking up host");
UnknownPort = os.NewError("unknown port");
Unknown_SocketFamily = os.NewError("unknown socket family");
UnknownsocketFamily = os.NewError("unknown socket family");
)
func LookupHost(name string) (name1 string, addrs []string, err *os.Error)
// Split "host:port" into "host" and "port".
// Host cannot contain colons unless it is bracketed.
func _SplitHostPort(hostport string) (host, port string, err *os.Error) {
func splitHostPort(hostport string) (host, port string, err *os.Error) {
// The port starts after the last colon.
var i int;
for i = len(hostport)-1; i >= 0; i-- {
@ -45,7 +45,7 @@ func _SplitHostPort(hostport string) (host, port string, err *os.Error) {
host = host[1:len(host)-1]
} else {
// ... but if there are no brackets, no colons.
if _ByteIndex(host, ':') >= 0 {
if byteIndex(host, ':') >= 0 {
return "", "", BadAddress
}
}
@ -54,9 +54,9 @@ func _SplitHostPort(hostport string) (host, port string, err *os.Error) {
// Join "host" and "port" into "host:port".
// If host contains colons, will join into "[host]:port".
func _JoinHostPort(host, port string) string {
func joinHostPort(host, port string) string {
// If host has colons, have to bracket it.
if _ByteIndex(host, ':') >= 0 {
if byteIndex(host, ':') >= 0 {
return "[" + host + "]:" + port
}
return host + ":" + port
@ -65,9 +65,9 @@ func _JoinHostPort(host, port string) string {
// Convert "host:port" into IP address and port.
// For now, host and port must be numeric literals.
// Eventually, we'll have name resolution.
func _HostPortToIP(net, hostport, mode string) (ip []byte, iport int, err *os.Error) {
func hostPortToIP(net, hostport, mode string) (ip []byte, iport int, err *os.Error) {
var host, port string;
host, port, err = _SplitHostPort(hostport);
host, port, err = splitHostPort(hostport);
if err != nil {
return nil, 0, err
}
@ -101,7 +101,7 @@ func _HostPortToIP(net, hostport, mode string) (ip []byte, iport int, err *os.Er
}
}
p, i, ok := _Dtoi(port, 0);
p, i, ok := dtoi(port, 0);
if !ok || i != len(port) {
p, ok = LookupPort(net, port);
if !ok {
@ -116,7 +116,7 @@ func _HostPortToIP(net, hostport, mode string) (ip []byte, iport int, err *os.Er
}
// Convert socket address into "host:port".
func _SockaddrToHostPort(sa *syscall.Sockaddr) (hostport string, err *os.Error) {
func sockaddrToHostPort(sa *syscall.Sockaddr) (hostport string, err *os.Error) {
switch sa.Family {
case syscall.AF_INET, syscall.AF_INET6:
addr, port, e := SockaddrToIP(sa);
@ -124,9 +124,9 @@ func _SockaddrToHostPort(sa *syscall.Sockaddr) (hostport string, err *os.Error)
return "", e
}
host := IPToString(addr);
return _JoinHostPort(host, strconv.Itoa(port)), nil;
return joinHostPort(host, strconv.Itoa(port)), nil;
default:
return "", Unknown_SocketFamily
return "", UnknownsocketFamily
}
return "", nil // not reached
}
@ -139,8 +139,10 @@ func boolint(b bool) int {
return 0
}
// Generic _Socket creation.
func _Socket(f, p, t int64, la, ra *syscall.Sockaddr) (fd *FD, err *os.Error) {
// Generic socket creation.
func socket(net, laddr, raddr string, f, p, t int64, la, ra *syscall.Sockaddr)
(fd *netFD, err *os.Error)
{
s, e := syscall.Socket(f, p, t);
if e != 0 {
return nil, os.ErrnoToError(e)
@ -166,7 +168,7 @@ func _Socket(f, p, t int64, la, ra *syscall.Sockaddr) (fd *FD, err *os.Error) {
}
}
fd, err = NewFD(s);
fd, err = newFD(s, net, laddr, raddr);
if err != nil {
syscall.Close(s);
return nil, err
@ -177,29 +179,36 @@ func _Socket(f, p, t int64, la, ra *syscall.Sockaddr) (fd *FD, err *os.Error) {
// Generic implementation of Conn interface; not exported.
type _ConnBase struct {
fd *FD;
type connBase struct {
fd *netFD;
raddr string;
}
func (c *_ConnBase) FD() int64 {
if c == nil || c.fd == nil {
return -1
func (c *connBase) FD() *os.FD {
if c == nil {
return nil
}
return c.fd.fd
return c.fd.osfd;
}
func (c *_ConnBase) Read(b []byte) (n int, err *os.Error) {
func (c *connBase) sysFD() int64 {
if c == nil || c.fd == nil {
return -1;
}
return c.fd.fd;
}
func (c *connBase) Read(b []byte) (n int, err *os.Error) {
n, err = c.fd.Read(b);
return n, err
}
func (c *_ConnBase) Write(b []byte) (n int, err *os.Error) {
func (c *connBase) Write(b []byte) (n int, err *os.Error) {
n, err = c.fd.Write(b);
return n, err
}
func (c *_ConnBase) ReadFrom(b []byte) (n int, raddr string, err *os.Error) {
func (c *connBase) ReadFrom(b []byte) (n int, raddr string, err *os.Error) {
if c == nil {
return -1, "", os.EINVAL
}
@ -207,7 +216,7 @@ func (c *_ConnBase) ReadFrom(b []byte) (n int, raddr string, err *os.Error) {
return n, c.raddr, err
}
func (c *_ConnBase) WriteTo(raddr string, b []byte) (n int, err *os.Error) {
func (c *connBase) WriteTo(raddr string, b []byte) (n int, err *os.Error) {
if c == nil {
return -1, os.EINVAL
}
@ -218,7 +227,7 @@ func (c *_ConnBase) WriteTo(raddr string, b []byte) (n int, err *os.Error) {
return n, err
}
func (c *_ConnBase) Close() *os.Error {
func (c *connBase) Close() *os.Error {
if c == nil {
return os.EINVAL
}
@ -234,48 +243,48 @@ func setsockopt_tv(fd, level, opt int64, nsec int64) *os.Error {
return os.ErrnoToError(syscall.Setsockopt_tv(fd, level, opt, nsec));
}
func (c *_ConnBase) SetReadBuffer(bytes int) *os.Error {
return setsockopt_int(c.FD(), syscall.SOL_SOCKET, syscall.SO_RCVBUF, bytes);
func (c *connBase) SetReadBuffer(bytes int) *os.Error {
return setsockopt_int(c.sysFD(), syscall.SOL_SOCKET, syscall.SO_RCVBUF, bytes);
}
func (c *_ConnBase) SetWriteBuffer(bytes int) *os.Error {
return setsockopt_int(c.FD(), syscall.SOL_SOCKET, syscall.SO_SNDBUF, bytes);
func (c *connBase) SetWriteBuffer(bytes int) *os.Error {
return setsockopt_int(c.sysFD(), syscall.SOL_SOCKET, syscall.SO_SNDBUF, bytes);
}
func (c *_ConnBase) SetReadTimeout(nsec int64) *os.Error {
return setsockopt_tv(c.FD(), syscall.SOL_SOCKET, syscall.SO_RCVTIMEO, nsec);
func (c *connBase) SetReadTimeout(nsec int64) *os.Error {
return setsockopt_tv(c.sysFD(), syscall.SOL_SOCKET, syscall.SO_RCVTIMEO, nsec);
}
func (c *_ConnBase) SetWriteTimeout(nsec int64) *os.Error {
return setsockopt_tv(c.FD(), syscall.SOL_SOCKET, syscall.SO_SNDTIMEO, nsec);
func (c *connBase) SetWriteTimeout(nsec int64) *os.Error {
return setsockopt_tv(c.sysFD(), syscall.SOL_SOCKET, syscall.SO_SNDTIMEO, nsec);
}
func (c *_ConnBase) SetTimeout(nsec int64) *os.Error {
func (c *connBase) SetTimeout(nsec int64) *os.Error {
if e := c.SetReadTimeout(nsec); e != nil {
return e
}
return c.SetWriteTimeout(nsec)
}
func (c *_ConnBase) SetReuseAddr(reuse bool) *os.Error {
return setsockopt_int(c.FD(), syscall.SOL_SOCKET, syscall.SO_REUSEADDR, boolint(reuse));
func (c *connBase) SetReuseAddr(reuse bool) *os.Error {
return setsockopt_int(c.sysFD(), syscall.SOL_SOCKET, syscall.SO_REUSEADDR, boolint(reuse));
}
func (c *_ConnBase) BindToDevice(dev string) *os.Error {
// TODO: call setsockopt with null-terminated string pointer
func (c *connBase) BindToDevice(dev string) *os.Error {
// TODO(rsc): call setsockopt with null-terminated string pointer
return os.EINVAL
}
func (c *_ConnBase) SetDontRoute(dontroute bool) *os.Error {
return setsockopt_int(c.FD(), syscall.SOL_SOCKET, syscall.SO_DONTROUTE, boolint(dontroute));
func (c *connBase) SetDontRoute(dontroute bool) *os.Error {
return setsockopt_int(c.sysFD(), syscall.SOL_SOCKET, syscall.SO_DONTROUTE, boolint(dontroute));
}
func (c *_ConnBase) SetKeepAlive(keepalive bool) *os.Error {
return setsockopt_int(c.FD(), syscall.SOL_SOCKET, syscall.SO_KEEPALIVE, boolint(keepalive));
func (c *connBase) SetKeepAlive(keepalive bool) *os.Error {
return setsockopt_int(c.sysFD(), syscall.SOL_SOCKET, syscall.SO_KEEPALIVE, boolint(keepalive));
}
func (c *_ConnBase) SetLinger(sec int) *os.Error {
e := syscall.Setsockopt_linger(c.FD(), syscall.SOL_SOCKET, syscall.SO_LINGER, sec);
func (c *connBase) SetLinger(sec int) *os.Error {
e := syscall.Setsockopt_linger(c.sysFD(), syscall.SOL_SOCKET, syscall.SO_LINGER, sec);
return os.ErrnoToError(e);
}
@ -287,23 +296,25 @@ func (c *_ConnBase) SetLinger(sec int) *os.Error {
// understands IPv6, it's okay to pass IPv4 addresses to the IPv6
// interface. That simplifies our code and is most general.
// If we need to build on a system without IPv6 support, setting
// _PreferIPv4 here should fall back to the IPv4 socket interface when possible.
const _PreferIPv4 = false
// preferIPv4 here should fall back to the IPv4 socket interface when possible.
const preferIPv4 = false
func _InternetSocket(net, laddr, raddr string, proto int64, mode string) (fd *FD, err *os.Error) {
func internetSocket(net, laddr, raddr string, proto int64, mode string)
(fd *netFD, err *os.Error)
{
// Parse addresses (unless they are empty).
var lip, rip []byte;
var lport, rport int;
var lerr, rerr *os.Error;
if laddr != "" {
lip, lport, lerr = _HostPortToIP(net, laddr, mode);
lip, lport, lerr = hostPortToIP(net, laddr, mode);
if lerr != nil {
return nil, lerr
}
}
if raddr != "" {
rip, rport, rerr = _HostPortToIP(net, raddr, mode);
rip, rport, rerr = hostPortToIP(net, raddr, mode);
if rerr != nil {
return nil, rerr
}
@ -320,7 +331,7 @@ func _InternetSocket(net, laddr, raddr string, proto int64, mode string) (fd *FD
default:
// Otherwise, guess.
// If the addresses are IPv4 and we prefer IPv4, use 4; else 6.
if _PreferIPv4 && ToIPv4(lip) != nil && ToIPv4(rip) != nil {
if preferIPv4 && ToIPv4(lip) != nil && ToIPv4(rip) != nil {
vers = 4
} else {
vers = 6
@ -351,7 +362,7 @@ func _InternetSocket(net, laddr, raddr string, proto int64, mode string) (fd *FD
}
}
fd, err = _Socket(family, proto, 0, la, ra);
fd, err = socket(net, laddr, raddr, family, proto, 0, la, ra);
return fd, err
}
@ -359,17 +370,17 @@ func _InternetSocket(net, laddr, raddr string, proto int64, mode string) (fd *FD
// TCP connections.
type ConnTCP struct {
_ConnBase
connBase
}
func (c *ConnTCP) SetNoDelay(nodelay bool) *os.Error {
if c == nil {
return os.EINVAL
}
return setsockopt_int(c.FD(), syscall.IPPROTO_TCP, syscall.TCP_NODELAY, boolint(nodelay))
return setsockopt_int(c.sysFD(), syscall.IPPROTO_TCP, syscall.TCP_NODELAY, boolint(nodelay))
}
func _NewConnTCP(fd *FD, raddr string) *ConnTCP {
func newConnTCP(fd *netFD, raddr string) *ConnTCP {
c := new(ConnTCP);
c.fd = fd;
c.raddr = raddr;
@ -381,11 +392,11 @@ func DialTCP(net, laddr, raddr string) (c *ConnTCP, err *os.Error) {
if raddr == "" {
return nil, MissingAddress
}
fd, e := _InternetSocket(net, laddr, raddr, syscall.SOCK_STREAM, "dial");
fd, e := internetSocket(net, laddr, raddr, syscall.SOCK_STREAM, "dial");
if e != nil {
return nil, e
}
return _NewConnTCP(fd, raddr), nil
return newConnTCP(fd, raddr), nil
}
@ -394,10 +405,10 @@ func DialTCP(net, laddr, raddr string) (c *ConnTCP, err *os.Error) {
// TODO(rsc): UDP headers mode
type ConnUDP struct {
_ConnBase
connBase
}
func _NewConnUDP(fd *FD, raddr string) *ConnUDP {
func newConnUDP(fd *netFD, raddr string) *ConnUDP {
c := new(ConnUDP);
c.fd = fd;
c.raddr = raddr;
@ -408,11 +419,11 @@ func DialUDP(net, laddr, raddr string) (c *ConnUDP, err *os.Error) {
if raddr == "" {
return nil, MissingAddress
}
fd, e := _InternetSocket(net, laddr, raddr, syscall.SOCK_DGRAM, "dial");
fd, e := internetSocket(net, laddr, raddr, syscall.SOCK_DGRAM, "dial");
if e != nil {
return nil, e
}
return _NewConnUDP(fd, raddr), nil
return newConnUDP(fd, raddr), nil
}
@ -483,12 +494,12 @@ type Listener interface {
}
type ListenerTCP struct {
fd *FD;
fd *netFD;
laddr string
}
func ListenTCP(net, laddr string) (l *ListenerTCP, err *os.Error) {
fd, e := _InternetSocket(net, laddr, "", syscall.SOCK_STREAM, "listen");
fd, e := internetSocket(net, laddr, "", syscall.SOCK_STREAM, "listen");
if e != nil {
return nil, e
}
@ -511,12 +522,12 @@ func (l *ListenerTCP) AcceptTCP() (c *ConnTCP, raddr string, err *os.Error) {
if e != nil {
return nil, "", e
}
raddr, err = _SockaddrToHostPort(&sa);
raddr, err = sockaddrToHostPort(&sa);
if err != nil {
fd.Close();
return nil, "", err
}
return _NewConnTCP(fd, raddr), raddr, nil
return newConnTCP(fd, raddr), raddr, nil
}
func (l *ListenerTCP) Accept() (c Conn, raddr string, err *os.Error) {

4
src/lib/net/net_linux.go
View File

@ -26,7 +26,7 @@ func IPv4ToSockaddr(p []byte, port int) (sa1 *syscall.Sockaddr, err *os.Error) {
return unsafe.Pointer(sa).(*syscall.Sockaddr), nil
}
var _IPv6zero [16]byte;
var ipv6zero [16]byte;
func IPv6ToSockaddr(p []byte, port int) (sa1 *syscall.Sockaddr, err *os.Error) {
p = ToIPv6(p);
@ -38,7 +38,7 @@ func IPv6ToSockaddr(p []byte, port int) (sa1 *syscall.Sockaddr, err *os.Error) {
// In IPv6 mode, Linux treats that as meaning "announce on 0.0.0.0",
// which it refuses to do. Rewrite to the IPv6 all zeros.
if p4 := ToIPv4(p); p4 != nil && p4[0] == 0 && p4[1] == 0 && p4[2] == 0 && p4[3] == 0 {
p = _IPv6zero;
p = ipv6zero;
}
sa := new(syscall.SockaddrInet6);

42
src/lib/net/parse.go
View File

@ -12,16 +12,16 @@ import (
"os";
)
type _File struct {
type file struct {
fd *os.FD;
data []byte;
}
func (f *_File) Close() {
func (f *file) close() {
f.fd.Close()
}
func (f *_File) GetLineFromData() (s string, ok bool) {
func (f *file) getLineFromData() (s string, ok bool) {
data := f.data;
for i := 0; i < len(data); i++ {
if data[i] == '\n' {
@ -40,8 +40,8 @@ func (f *_File) GetLineFromData() (s string, ok bool) {
return
}
func (f *_File) ReadLine() (s string, ok bool) {
if s, ok = f.GetLineFromData(); ok {
func (f *file) readLine() (s string, ok bool) {
if s, ok = f.getLineFromData(); ok {
return
}
if len(f.data) < cap(f.data) {
@ -51,19 +51,19 @@ func (f *_File) ReadLine() (s string, ok bool) {
f.data = f.data[0:ln+n];
}
}
s, ok = f.GetLineFromData();
s, ok = f.getLineFromData();
return
}
func _Open(name string) *_File {
func open(name string) *file {
fd, err := os.Open(name, os.O_RDONLY, 0);
if err != nil {
return nil
}
return &_File(fd, make([]byte, 1024)[0:0]);
return &file(fd, make([]byte, 1024)[0:0]);
}
func _ByteIndex(s string, c byte) int {
func byteIndex(s string, c byte) int {
for i := 0; i < len(s); i++ {
if s[i] == c {
return i
@ -73,10 +73,10 @@ func _ByteIndex(s string, c byte) int {
}
// Count occurrences in s of any bytes in t.
func _CountAnyByte(s string, t string) int {
func countAnyByte(s string, t string) int {
n := 0;
for i := 0; i < len(s); i++ {
if _ByteIndex(t, s[i]) >= 0 {
if byteIndex(t, s[i]) >= 0 {
n++;
}
}
@ -84,12 +84,12 @@ func _CountAnyByte(s string, t string) int {
}
// Split s at any bytes in t.
func _SplitAtBytes(s string, t string) []string {
a := make([]string, 1+_CountAnyByte(s, t));
func splitAtBytes(s string, t string) []string {
a := make([]string, 1+countAnyByte(s, t));
n := 0;
last := 0;
for i := 0; i < len(s); i++ {
if _ByteIndex(t, s[i]) >= 0 {
if byteIndex(t, s[i]) >= 0 {
if last < i {
a[n] = string(s[last:i]);
n++;
@ -104,20 +104,20 @@ func _SplitAtBytes(s string, t string) []string {
return a[0:n];
}
func _GetFields(s string) []string {
return _SplitAtBytes(s, " \r\t\n");
func getFields(s string) []string {
return splitAtBytes(s, " \r\t\n");
}
// Bigger than we need, not too big to worry about overflow
const _Big = 0xFFFFFF
const big = 0xFFFFFF
// Decimal to integer starting at &s[i0].
// Returns number, new offset, success.
func _Dtoi(s string, i0 int) (n int, i int, ok bool) {
func dtoi(s string, i0 int) (n int, i int, ok bool) {
n = 0;
for i = i0; i < len(s) && '0' <= s[i] && s[i] <= '9'; i++ {
n = n*10 + int(s[i] - '0');
if n >= _Big {
if n >= big {
return 0, i, false
}
}
@ -129,7 +129,7 @@ func _Dtoi(s string, i0 int) (n int, i int, ok bool) {
// Hexadecimal to integer starting at &s[i0].
// Returns number, new offset, success.
func _Xtoi(s string, i0 int) (n int, i int, ok bool) {
func xtoi(s string, i0 int) (n int, i int, ok bool) {
n = 0;
for i = i0; i < len(s); i++ {
if '0' <= s[i] && s[i] <= '9' {
@ -144,7 +144,7 @@ func _Xtoi(s string, i0 int) (n int, i int, ok bool) {
} else {
break
}
if n >= _Big {
if n >= big {
return 0, i, false
}
}

7
src/lib/net/parse_test.go
View File

@ -20,16 +20,17 @@ func TestReadLine(t *testing.T) {
}
br := bufio.NewBufRead(fd);
file := _Open(filename);
// TODO(rsc): 6g rejects "file :="
var file = open(filename);
if file == nil {
t.Fatalf("net._Open(%s) = nil", filename);
t.Fatalf("net.open(%s) = nil", filename);
}
lineno := 1;
byteno := 0;
for {
bline, berr := br.ReadLineString('\n', false);
line, ok := file.ReadLine();
line, ok := file.readLine();
if (berr != nil) != !ok || bline != line {
t.Fatalf("%s:%d (#%d)\nbufio => %q, %v\nnet => %q, %v",
filename, lineno, byteno, bline, berr, line, ok);

17
src/lib/net/port.go
View File

@ -16,20 +16,21 @@ import (
var services map[string] map[string] int
func _ReadServices() {
func readServices() {
services = make(map[string] map[string] int);
file := _Open("/etc/services");
for line, ok := file.ReadLine(); ok; line, ok = file.ReadLine() {
// TODO(rsc): 6g won't let me do "file := "
var file = open("/etc/services");
for line, ok := file.readLine(); ok; line, ok = file.readLine() {
// "http 80/tcp www www-http # World Wide Web HTTP"
if i := _ByteIndex(line, '#'); i >= 0 {
if i := byteIndex(line, '#'); i >= 0 {
line = line[0:i];
}
f := _GetFields(line);
f := getFields(line);
if len(f) < 2 {
continue;
}
portnet := f[1]; // "tcp/80"
port, j, ok := _Dtoi(portnet, 0);
port, j, ok := dtoi(portnet, 0);
if !ok || port <= 0 || j >= len(portnet) || portnet[j] != '/' {
continue
}
@ -45,11 +46,11 @@ func _ReadServices() {
}
}
}
file.Close();
file.close();
}
func LookupPort(netw, name string) (port int, ok bool) {
once.Do(_ReadServices);
once.Do(readServices);
switch netw {
case "tcp4", "tcp6":

17
src/lib/os/os_test.go
View File

@ -13,12 +13,12 @@ import (
var dot = []string(
"dir_amd64_darwin.go",
"dir_amd64_linux.go",
"os_env.go",
"os_error.go",
"os_file.go",
"env.go",
"error.go",
"file.go",
"os_test.go",
"os_time.go",
"os_types.go",
"time.go",
"types.go",
"stat_amd64_darwin.go",
"stat_amd64_linux.go"
)
@ -101,7 +101,7 @@ func testReaddirnames(dir string, contents []string, t *testing.T) {
fd, err := Open(dir, O_RDONLY, 0);
defer fd.Close();
if err != nil {
t.Fatalf("open %q failed: %v\n", dir, err);
t.Fatalf("open %q failed: %v", dir, err);
}
s, err2 := Readdirnames(fd, -1);
if err2 != nil {
@ -192,12 +192,13 @@ func TestReaddirnamesOneAtATime(t *testing.T) {
}
fd1, err2 := Open(dir, O_RDONLY, 0);
if err2 != nil {
t.Fatalf("open %q failed: %v\n", dir, err2);
t.Fatalf("open %q failed: %v", dir, err2);
}
small := smallReaddirnames(fd1, len(all)+100, t); // +100 in case we screw up
for i, n := range all {
if small[i] != n {
t.Errorf("small read %q %q mismatch: %v\n", small[i], n);
t.Errorf("small read %q %q mismatch: %v", small[i], n);
}
}
}

1
src/run.bash
View File

@ -29,6 +29,7 @@ maketest \
lib/json\
lib/math\
lib/net\
lib/os\
lib/reflect\
lib/regexp\
lib/strconv\