gnustep/libs-base
0
0
Fork 0
mirror of https://github.com/gnustep/libs-base.git synced 2025-04-22 08:26:27 +00:00
Code Issues Projects Releases Packages Wiki Activity
libs-base/Source/GSFileHandle.m
David Ayers ac30183cd6 Header reorganizsateion - Please refer to ChangeLog 
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@17407 72102866-910b-0410-8b05-ffd578937521
2003-07-31 23:49:32 +00:00

2364 lines
52 KiB
Objective-C
Raw Permalink Blame History

/** Implementation for GSFileHandle for GNUStep
Copyright (C) 1997-2002 Free Software Foundation, Inc.
Written by: Richard Frith-Macdonald <richard@brainstorm.co.uk>
Date: 1997, 2002
This file is part of the GNUstep Base Library.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111 USA.
*/
#include "config.h"
#include "GNUstepBase/preface.h"
#include "Foundation/NSObject.h"
#include "Foundation/NSData.h"
#include "Foundation/NSArray.h"
#include "Foundation/NSString.h"
#include "Foundation/NSFileHandle.h"
#include "GNUstepBase/GSFileHandle.h"
#include "Foundation/NSException.h"
#include "Foundation/NSRunLoop.h"
#include "Foundation/NSNotification.h"
#include "Foundation/NSNotificationQueue.h"
#include "Foundation/NSHost.h"
#include "Foundation/NSByteOrder.h"
#include "Foundation/NSProcessInfo.h"
#include "Foundation/NSUserDefaults.h"
#include "Foundation/NSDebug.h"
#include "../Tools/gdomap.h"
#if defined(__MINGW__)
#include <winsock2.h>
#include <fcntl.h>
#include <sys/file.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <io.h>
#include <stdio.h>
#else
#include <time.h>
#include <sys/time.h>
#include <sys/param.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <signal.h>
#include <sys/file.h>
#include <sys/stat.h>
#include <sys/fcntl.h>
#include <sys/ioctl.h>
#ifdef __svr4__
#include <sys/filio.h>
#endif
#include <netdb.h>
#define SOCKET int
#define SOCKET_ERROR -1
#define INVALID_SOCKET -1
#endif /* __MINGW__ */
#include <string.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <errno.h>
/*
* Stuff for setting the sockets into non-blocking mode.
*/
#ifdef __POSIX_SOURCE
#define NBLK_OPT O_NONBLOCK
#else
#define NBLK_OPT FNDELAY
#endif
#ifndef O_BINARY
#ifdef _O_BINARY
#define O_BINARY _O_BINARY
#else
#define O_BINARY 0
#endif
#endif
#ifndef INADDR_NONE
#define INADDR_NONE -1
#endif
// Maximum data in single I/O operation
#define NETBUF_SIZE 4096
static GSFileHandle* fh_stdin = nil;
static GSFileHandle* fh_stdout = nil;
static GSFileHandle* fh_stderr = nil;
// Key to info dictionary for operation mode.
static NSString* NotificationKey = @"NSFileHandleNotificationKey";
@implementation GSFileHandle
/**
* Encapsulates low level read operation to get data from the operating
* system.
*/
- (int) read: (void*)buf length: (int)len
{
#if USE_ZLIB
if (gzDescriptor != 0)
{
len = gzread(gzDescriptor, buf, len);
}
else
#endif
if (isSocket)
{
#if defined(__MINGW__)
len = recv((SOCKET)_get_osfhandle(descriptor), buf, len, 0);
#else
len = recv(descriptor, buf, len, 0);
#endif
}
else
{
len = read(descriptor, buf, len);
}
return len;
}
/**
* Encapsulates low level write operation to send data to the operating
* system.
*/
- (int) write: (const void*)buf length: (int)len
{
#if USE_ZLIB
if (gzDescriptor != 0)
{
len = gzwrite(gzDescriptor, (char*)buf, len);
}
else
#endif
if (isSocket)
{
#if defined(__MINGW__)
len = send((SOCKET)_get_osfhandle(descriptor), buf, len, 0);
#else
len = send(descriptor, buf, len, 0);
#endif
}
else
{
len = write(descriptor, buf, len);
}
return len;
}
static BOOL
getAddr(NSString* name, NSString* svc, NSString* pcl, struct sockaddr_in *sin)
{
const char *proto = "tcp";
struct servent *sp;
if (pcl)
{
proto = [pcl lossyCString];
}
memset(sin, '\0', sizeof(*sin));
sin->sin_family = AF_INET;
/*
* If we were given a hostname, we use any address for that host.
* Otherwise we expect the given name to be an address unless it is
* a null (any address).
*/
if (name)
{
NSHost* host = [NSHost hostWithName: name];
if (host != nil)
{
name = [host address];
}
#ifndef HAVE_INET_ATON
sin->sin_addr.s_addr = inet_addr([name lossyCString]);
if (sin->sin_addr.s_addr == INADDR_NONE)
#else
if (inet_aton([name lossyCString], &sin->sin_addr) == 0)
#endif
{
return NO;
}
}
else
{
sin->sin_addr.s_addr = GSSwapHostI32ToBig(INADDR_ANY);
}
if (svc == nil)
{
sin->sin_port = 0;
return YES;
}
else if ((sp = getservbyname([svc lossyCString], proto)) == 0)
{
const char* ptr = [svc lossyCString];
int val = atoi(ptr);
while (isdigit(*ptr))
{
ptr++;
}
if (*ptr == '\0' && val <= 0xffff)
{
gsu16 v = val;
sin->sin_port = GSSwapHostI16ToBig(v);
return YES;
}
else if (strcmp(ptr, "gdomap") == 0)
{
gsu16 v;
#ifdef GDOMAP_PORT_OVERRIDE
v = GDOMAP_PORT_OVERRIDE;
#else
v = 538; // IANA allocated port
#endif
sin->sin_port = GSSwapHostI16ToBig(v);
return YES;
}
else
{
return NO;
}
}
else
{
sin->sin_port = sp->s_port;
return YES;
}
}
+ (void) initialize
{
if (self == [GSFileHandle class])
{
#if !defined(__MINGW__)
/*
* If SIGPIPE is not ignored, we will abort on any attempt to
* write to a pipe/socket that has been closed by the other end!
*/
signal(SIGPIPE, SIG_IGN);
#endif
}
}
+ (id) allocWithZone: (NSZone*)z
{
return NSAllocateObject ([self class], 0, z);
}
- (void) dealloc
{
RELEASE(address);
RELEASE(service);
RELEASE(protocol);
[self gcFinalize];
RELEASE(readInfo);
RELEASE(writeInfo);
[super dealloc];
}
- (void) gcFinalize
{
if (self == fh_stdin)
fh_stdin = nil;
if (self == fh_stdout)
fh_stdout = nil;
if (self == fh_stderr)
fh_stderr = nil;
[self ignoreReadDescriptor];
[self ignoreWriteDescriptor];
#if USE_ZLIB
/*
* The gzDescriptor should always be closed when we have done with it.
*/
if (gzDescriptor != 0)
{
gzclose(gzDescriptor);
}
#endif
if (descriptor != -1)
{
[self setNonBlocking: wasNonBlocking];
if (closeOnDealloc == YES)
{
#if defined(__MINGW__)
if (isSocket)
closesocket((SOCKET)_get_osfhandle(descriptor));
else
close(descriptor);
#else
close(descriptor);
#endif
descriptor = -1;
}
}
}
// Initializing a GSFileHandle Object
- (id) init
{
return [self initWithNullDevice];
}
/**
* Initialise as a client socket connection ... do this by using
* [-initAsClientInBackgroundAtAddress:service:protocol:forModes:]
* and running the current run loop in NSDefaultRunLoopMode until
* the connection attempt succeeds, fails, or times out.
*/
- (id) initAsClientAtAddress: (NSString*)a
service: (NSString*)s
protocol: (NSString*)p
{
self = [self initAsClientInBackgroundAtAddress: a
service: s
protocol: p
forModes: nil];
if (self != nil)
{
NSRunLoop *loop;
NSDate *limit;
loop = [NSRunLoop currentRunLoop];
limit = [NSDate dateWithTimeIntervalSinceNow: 300];
while ([limit timeIntervalSinceNow] > 0
&& (readInfo != nil || [writeInfo count] > 0))
{
[loop runMode: NSDefaultRunLoopMode
beforeDate: limit];
}
if (readInfo != nil || [writeInfo count] > 0 || readOK == NO)
{
/* Must have timed out or failed */
DESTROY(self);
}
else
{
[self setNonBlocking: NO];
}
}
return self;
}
/*
* States for socks connection negotiation
*/
NSString * const GSSOCKSConnect = @"GSSOCKSConnect";
NSString * const GSSOCKSSendAuth = @"GSSOCKSSendAuth";
NSString * const GSSOCKSRecvAuth = @"GSSOCKSRecvAuth";
NSString * const GSSOCKSSendConn = @"GSSOCKSSendConn";
NSString * const GSSOCKSRecvConn = @"GSSOCKSRecvConn";
NSString * const GSSOCKSRecvAddr = @"GSSOCKSRecvAddr";
- (void) _socksHandler: (NSNotification*)aNotification
{
NSNotificationCenter *nc = [NSNotificationCenter defaultCenter];
NSString *name = [aNotification name];
NSDictionary *info = (NSMutableDictionary*)[aNotification userInfo];
NSArray *modes;
NSString *error;
NSMutableDictionary *i = nil;
NSNotification *n = nil;
NSDebugMLLog(@"NSFileHandle", @"%@ SOCKS connection: %@",
self, aNotification);
[nc removeObserver: self name: name object: self];
modes = (NSArray*)[info objectForKey: NSFileHandleNotificationMonitorModes];
error = [info objectForKey: GSFileHandleNotificationError];
if (error == nil)
{
if (name == GSSOCKSConnect)
{
NSData *item;
/*
* Send an authorisation record to the SOCKS server.
*/
i = [info mutableCopy];
/*
* Authorisation record is at least three bytes -
* socks version (5)
* authorisation method bytes to follow (1)
* say we do no authorisation (0)
*/
item = [[NSData alloc] initWithBytes: "\5\1\0"
length: 3];
[i setObject: item forKey: NSFileHandleNotificationDataItem];
RELEASE(item);
[i setObject: GSSOCKSSendAuth forKey: NotificationKey];
[writeInfo addObject: i];
RELEASE(i);
[nc addObserver: self
selector: @selector(_socksHandler:)
name: GSSOCKSSendAuth
object: self];
[self watchWriteDescriptor];
}
else if (name == GSSOCKSSendAuth)
{
NSMutableData *item;
/*
* We have written the authorisation record, so we
* request a response from the SOCKS server.
*/
readMax = 2;
readInfo = [info mutableCopy];
[readInfo setObject: GSSOCKSRecvAuth forKey: NotificationKey];
item = [[NSMutableData alloc] initWithCapacity: 0];
[readInfo setObject: item forKey: NSFileHandleNotificationDataItem];
RELEASE(item);
[nc addObserver: self
selector: @selector(_socksHandler:)
name: GSSOCKSRecvAuth
object: self];
[self watchReadDescriptorForModes: modes];
}
else if (name == GSSOCKSRecvAuth)
{
NSData *response;
const unsigned char *bytes;
response = [info objectForKey: NSFileHandleNotificationDataItem];
bytes = (const unsigned char*)[response bytes];
if ([response length] != 2)
{
error = @"authorisation response from SOCKS was not two bytes";
}
else if (bytes[0] != 5)
{
error = @"authorisation response from SOCKS had wrong version";
}
else if (bytes[1] != 0)
{
error = @"authorisation response from SOCKS had wrong method";
}
else
{
NSData *item;
char buf[10];
const char *ptr;
int p;
/*
* Send the address information to the SOCKS server.
*/
i = [info mutableCopy];
/*
* Connect command is ten bytes -
* socks version
* connect command
* reserved byte
* address type
* address 4 bytes (big endian)
* port 2 bytes (big endian)
*/
buf[0] = 5; // Socks version number
buf[1] = 1; // Connect command
buf[2] = 0; // Reserved
buf[3] = 1; // Address type (IPV4)
ptr = [address lossyCString];
buf[4] = atoi(ptr);
while (isdigit(*ptr))
ptr++;
ptr++;
buf[5] = atoi(ptr);
while (isdigit(*ptr))
ptr++;
ptr++;
buf[6] = atoi(ptr);
while (isdigit(*ptr))
ptr++;
ptr++;
buf[7] = atoi(ptr);
p = [service intValue];
buf[8] = ((p & 0xff00) >> 8);
buf[9] = (p & 0xff);
item = [[NSData alloc] initWithBytes: buf length: 10];
[i setObject: item forKey: NSFileHandleNotificationDataItem];
RELEASE(item);
[i setObject: GSSOCKSSendConn
forKey: NotificationKey];
[writeInfo addObject: i];
RELEASE(i);
[nc addObserver: self
selector: @selector(_socksHandler:)
name: GSSOCKSSendConn
object: self];
[self watchWriteDescriptor];
}
}
else if (name == GSSOCKSSendConn)
{
NSMutableData *item;
/*
* We have written the connect command, so we
* request a response from the SOCKS server.
*/
readMax = 4;
readInfo = [info mutableCopy];
[readInfo setObject: GSSOCKSRecvConn forKey: NotificationKey];
item = [[NSMutableData alloc] initWithCapacity: 0];
[readInfo setObject: item forKey: NSFileHandleNotificationDataItem];
RELEASE(item);
[nc addObserver: self
selector: @selector(_socksHandler:)
name: GSSOCKSRecvConn
object: self];
[self watchReadDescriptorForModes: modes];
}
else if (name == GSSOCKSRecvConn)
{
NSData *response;
const unsigned char *bytes;
unsigned len = 0;
response = [info objectForKey: NSFileHandleNotificationDataItem];
bytes = (const unsigned char*)[response bytes];
if ([response length] != 4)
{
error = @"connect response from SOCKS had bad length";
}
else if (bytes[0] != 5)
{
error = @"connect response from SOCKS had wrong version";
}
else if (bytes[1] != 0)
{
switch (bytes[1])
{
case 1:
error = @"SOCKS server general failure";
break;
case 2:
error = @"SOCKS server says permission denied";
break;
case 3:
error = @"SOCKS server says network unreachable";
break;
case 4:
error = @"SOCKS server says host unreachable";
break;
case 5:
error = @"SOCKS server says connection refused";
break;
case 6:
error = @"SOCKS server says connection timed out";
break;
case 7:
error = @"SOCKS server says command not supported";
break;
case 8:
error = @"SOCKS server says address type not supported";
break;
default:
error = @"connect response from SOCKS was failure";
break;
}
}
else if (bytes[3] == 1)
{
len = 4; // Fixed size (IPV4) address
}
else if (bytes[3] == 3)
{
len = 1 + bytes[4]; // Domain name with leading length
}
else if (bytes[3] == 4)
{
len = 16; // Fixed size (IPV6) address
}
else
{
error = @"SOCKS server returned unknown address type";
}
if (error == nil)
{
NSMutableData *item;
/*
* We have received a success, so we must now consume the
* address and port information the SOCKS server sends.
*/
readMax = len + 2;
readInfo = [info mutableCopy];
[readInfo setObject: GSSOCKSRecvAddr forKey: NotificationKey];
item = [[NSMutableData alloc] initWithCapacity: 0];
[readInfo setObject: item
forKey: NSFileHandleNotificationDataItem];
RELEASE(item);
[nc addObserver: self
selector: @selector(_socksHandler:)
name: GSSOCKSRecvAddr
object: self];
[self watchReadDescriptorForModes: modes];
}
}
else if (name == GSSOCKSRecvAddr)
{
/*
* Success ... We read the address from the socks server so
* the connection is now ready to go.
*/
name = GSFileHandleConnectCompletionNotification;
i = [info mutableCopy];
[i setObject: name forKey: NotificationKey];
n = [NSNotification notificationWithName: name
object: self
userInfo: i];
RELEASE(i);
}
else
{
/*
* Argh ... unexpected notification.
*/
error = @"unexpected notification during SOCKS connection";
}
}
/*
* If 'error' is non-null, we set up a notification to tell people
* the connection failed.
*/
if (error != nil)
{
NSDebugMLLog(@"NSFileHandle", @"%@ SOCKS error: %@", self, error);
/*
* An error in the initial connection ... notify observers
* by re-posting the notification with a new name.
*/
name = GSFileHandleConnectCompletionNotification;
i = [info mutableCopy];
[i setObject: name forKey: NotificationKey];
[i setObject: error forKey: GSFileHandleNotificationError];
n = [NSNotification notificationWithName: name
object: self
userInfo: i];
RELEASE(i);
}
/*
* If a notification has been set up, we post it as the last thing we do.
*/
if (n != nil)
{
NSNotificationQueue *q;
q = [NSNotificationQueue defaultQueue];
[q enqueueNotification: n
postingStyle: NSPostASAP
coalesceMask: NSNotificationNoCoalescing
forModes: modes];
}
}
- (id) initAsClientInBackgroundAtAddress: (NSString*)a
service: (NSString*)s
protocol: (NSString*)p
forModes: (NSArray*)modes
{
static NSString *esocks = nil;
static NSString *dsocks = nil;
BOOL beenHere = NO;
SOCKET net;
struct sockaddr_in sin;
NSString *shost = nil;
NSString *sport = nil;
if (beenHere == NO)
{
NSUserDefaults *defs;
beenHere = YES;
defs = [NSUserDefaults standardUserDefaults];
dsocks = [[defs stringForKey: @"GSSOCKS"] copy];
if (dsocks == nil)
{
NSDictionary *env;
env = [[NSProcessInfo processInfo] environment];
esocks = [env objectForKey: @"SOCKS5_SERVER"];
if (esocks == nil)
{
esocks = [env objectForKey: @"SOCKS_SERVER"];
}
[esocks = esocks copy];
}
}
if (a == nil || [a isEqualToString: @""])
{
a = @"localhost";
}
if (s == nil)
{
NSLog(@"bad argument - service is nil");
RELEASE(self);
return nil;
}
/**
* A protocol fo the form 'socks-...' controls socks operation,
* overriding defaults and environment variables.<br />
* If it is just 'socks-' it turns off socks for this fiel handle.<br />
* Otherwise, the following text must be the name of the socks server
* (optionally followed by :port).
*/
if ([p hasPrefix: @"socks-"] == YES)
{
shost = [p substringFromIndex: 6];
p = @"tcp";
}
else if (dsocks != nil)
{
shost = dsocks; // GSSOCKS user default
}
else
{
shost = esocks; // SOCKS_SERVER environment variable.
}
if (shost != nil && [shost length] > 0)
{
NSRange r;
r = [shost rangeOfString: @":"];
if (r.length > 0)
{
sport = [shost substringFromIndex: NSMaxRange(r)];
shost = [shost substringToIndex: r.location];
}
else
{
sport = @"1080";
}
p = @"tcp";
}
if (getAddr(a, s, p, &sin) == NO)
{
RELEASE(self);
NSLog(@"bad address-service-protocol combination");
return nil;
}
[self setAddr: &sin]; // Store the address of the remote end.
/*
* Don't use SOCKS if we are contacting the local host.
*/
if (shost != nil)
{
NSHost *remote = [NSHost hostWithAddress: [self socketAddress]];
NSHost *local = [NSHost currentHost];
if ([remote isEqual: local] || [remote isEqual: [NSHost localHost]])
{
shost = nil;
}
}
if (shost != nil)
{
if (getAddr(shost, sport, p, &sin) == NO)
{
NSLog(@"bad SOCKS host-port combination");
RELEASE(self);
return nil;
}
}
if ((net = socket(AF_INET, SOCK_STREAM, PF_UNSPEC)) == INVALID_SOCKET)
{
NSLog(@"unable to create socket - %s", GSLastErrorStr(errno));
RELEASE(self);
return nil;
}
#if defined(__MINGW__)
self = [self initWithNativeHandle: (void*)net closeOnDealloc: YES];
#else
self = [self initWithFileDescriptor: net closeOnDealloc: YES];
#endif
if (self)
{
NSMutableDictionary* info;
isSocket = YES;
[self setNonBlocking: YES];
if (connect(net, (struct sockaddr*)&sin, sizeof(sin)) == SOCKET_ERROR)
{
#if defined(__MINGW__)
if (WSAGetLastError() != WSAEWOULDBLOCK)
#else
if (errno != EINPROGRESS)
#endif
{
NSLog(@"unable to make connection to %s:%d - %s",
inet_ntoa(sin.sin_addr),
GSSwapBigI16ToHost(sin.sin_port), GSLastErrorStr(errno));
RELEASE(self);
return nil;
}
}
info = [[NSMutableDictionary alloc] initWithCapacity: 4];
[info setObject: address forKey: NSFileHandleNotificationDataItem];
if (shost == nil)
{
[info setObject: GSFileHandleConnectCompletionNotification
forKey: NotificationKey];
}
else
{
NSNotificationCenter *nc;
/*
* If we are making a socks connection, register self as an
* observer of notifications and ensure we will manage this.
*/
nc = [NSNotificationCenter defaultCenter];
[nc addObserver: self
selector: @selector(_socksHandler:)
name: GSSOCKSConnect
object: self];
[info setObject: GSSOCKSConnect
forKey: NotificationKey];
}
if (modes)
{
[info setObject: modes forKey: NSFileHandleNotificationMonitorModes];
}
[writeInfo addObject: info];
RELEASE(info);
[self watchWriteDescriptor];
connectOK = YES;
acceptOK = NO;
readOK = NO;
writeOK = NO;
}
return self;
}
- (id) initAsServerAtAddress: (NSString*)a
service: (NSString*)s
protocol: (NSString*)p
{
#ifndef BROKEN_SO_REUSEADDR
int status = 1;
#endif
SOCKET net;
struct sockaddr_in sin;
int size = sizeof(sin);
if (getAddr(a, s, p, &sin) == NO)
{
RELEASE(self);
NSLog(@"bad address-service-protocol combination");
return nil;
}
if ((net = socket(AF_INET, SOCK_STREAM, PF_UNSPEC)) == INVALID_SOCKET)
{
NSLog(@"unable to create socket - %s", GSLastErrorStr(errno));
RELEASE(self);
return nil;
}
#ifndef BROKEN_SO_REUSEADDR
/*
* Under decent systems, SO_REUSEADDR means that the port can be reused
* immediately that this process exits. Under some it means
* that multiple processes can serve the same port simultaneously.
* We don't want that broken behavior!
*/
setsockopt(net, SOL_SOCKET, SO_REUSEADDR, (char *)&status, sizeof(status));
#endif
if (bind(net, (struct sockaddr *)&sin, sizeof(sin)) == SOCKET_ERROR)
{
NSLog(@"unable to bind to port %s:%d - %s", inet_ntoa(sin.sin_addr),
GSSwapBigI16ToHost(sin.sin_port), GSLastErrorStr(errno));
#if defined(__MINGW__)
(void) closesocket(net);
#else
(void) close(net);
#endif
RELEASE(self);
return nil;
}
if (listen(net, 5) == SOCKET_ERROR)
{
NSLog(@"unable to listen on port - %s", GSLastErrorStr(errno));
#if defined(__MINGW__)
(void) closesocket(net);
#else
(void) close(net);
#endif
RELEASE(self);
return nil;
}
if (getsockname(net, (struct sockaddr*)&sin, &size) == SOCKET_ERROR)
{
NSLog(@"unable to get socket name - %s", GSLastErrorStr(errno));
#if defined(__MINGW__)
(void) closesocket(net);
#else
(void) close(net);
#endif
RELEASE(self);
return nil;
}
#if defined(__MINGW__)
self = [self initWithNativeHandle: (void*)net closeOnDealloc: YES];
#else
self = [self initWithFileDescriptor: net closeOnDealloc: YES];
#endif
if (self)
{
isSocket = YES;
connectOK = NO;
acceptOK = YES;
readOK = NO;
writeOK = NO;
[self setAddr: &sin];
}
return self;
}
- (id) initForReadingAtPath: (NSString*)path
{
int d = open([path fileSystemRepresentation], O_RDONLY|O_BINARY);
if (d < 0)
{
RELEASE(self);
return nil;
}
else
{
self = [self initWithFileDescriptor: d closeOnDealloc: YES];
if (self)
{
connectOK = NO;
acceptOK = NO;
writeOK = NO;
}
return self;
}
}
- (id) initForWritingAtPath: (NSString*)path
{
int d = open([path fileSystemRepresentation], O_WRONLY|O_BINARY);
if (d < 0)
{
RELEASE(self);
return nil;
}
else
{
self = [self initWithFileDescriptor: d closeOnDealloc: YES];
if (self)
{
connectOK = NO;
acceptOK = NO;
readOK = NO;
}
return self;
}
}
- (id) initForUpdatingAtPath: (NSString*)path
{
int d = open([path fileSystemRepresentation], O_RDWR|O_BINARY);
if (d < 0)
{
RELEASE(self);
return nil;
}
else
{
self = [self initWithFileDescriptor: d closeOnDealloc: YES];
if (self != nil)
{
connectOK = NO;
acceptOK = NO;
}
return self;
}
}
- (id) initWithStandardError
{
if (fh_stderr != nil)
{
RETAIN(fh_stderr);
RELEASE(self);
}
else
{
self = [self initWithFileDescriptor: 2 closeOnDealloc: NO];
fh_stderr = self;
}
self = fh_stderr;
if (self)
{
readOK = NO;
}
return self;
}
- (id) initWithStandardInput
{
if (fh_stdin != nil)
{
RETAIN(fh_stdin);
RELEASE(self);
}
else
{
self = [self initWithFileDescriptor: 0 closeOnDealloc: NO];
fh_stdin = self;
}
self = fh_stdin;
if (self)
{
writeOK = NO;
}
return self;
}
- (id) initWithStandardOutput
{
if (fh_stdout != nil)
{
RETAIN(fh_stdout);
RELEASE(self);
}
else
{
self = [self initWithFileDescriptor: 1 closeOnDealloc: NO];
fh_stdout = self;
}
self = fh_stdout;
if (self)
{
readOK = NO;
}
return self;
}
- (id) initWithNullDevice
{
#if defined(__MINGW__)
isNullDevice = YES;
isStandardFile = YES;
descriptor = -1;
#else
self = [self initWithFileDescriptor: open("/dev/null", O_RDWR|O_BINARY)
closeOnDealloc: YES];
if (self)
{
isNullDevice = YES;
}
#endif
return self;
}
- (id) initWithFileDescriptor: (int)desc closeOnDealloc: (BOOL)flag
{
self = [super init];
if (self != nil)
{
#if defined(__MINGW__)
struct _stat sbuf;
#else
struct stat sbuf;
int e;
#endif
#if defined(__MINGW__)
if (_fstat(desc, &sbuf) != 0)
#else
if (fstat(desc, &sbuf) < 0)
#endif
{
NSLog(@"unable to get status of descriptor %d - %s",
desc, GSLastErrorStr(errno));
}
else
{
if (S_ISREG(sbuf.st_mode))
{
isStandardFile = YES;
}
else
{
isStandardFile = NO;
}
}
#if defined(__MINGW__)
if (isStandardFile == NO)
{
unsigned long nbio = 0;
isSocket = YES;
/*
* This is probably a socket ... try
* using a socket specific call and see if that fails.
*/
if (ioctlsocket((SOCKET)_get_osfhandle(desc), FIONBIO, &nbio) == 0)
{
wasNonBlocking = (nbio == 0) ? NO : YES;
}
else
{
isSocket = NO; // maybe special file desc. like std in/out/err?
}
}
#else
if ((e = fcntl(desc, F_GETFL, 0)) >= 0)
{
if (e & NBLK_OPT)
{
wasNonBlocking = YES;
}
else
{
wasNonBlocking = NO;
}
}
#endif
isNonBlocking = wasNonBlocking;
descriptor = desc;
closeOnDealloc = flag;
readInfo = nil;
writeInfo = [NSMutableArray new];
readMax = 0;
writePos = 0;
readOK = YES;
writeOK = YES;
acceptOK = YES;
connectOK = YES;
}
return self;
}
- (id) initWithNativeHandle: (void*)hdl
{
#if defined(__MINGW__)
return [self initWithFileDescriptor: _open_osfhandle((SOCKET)hdl, 0)
closeOnDealloc: NO];
#else
return [self initWithFileDescriptor: (gsaddr)hdl closeOnDealloc: NO];
#endif
}
- (id) initWithNativeHandle: (void*)hdl closeOnDealloc: (BOOL)flag
{
#if defined(__MINGW__)
return [self initWithFileDescriptor: _open_osfhandle((SOCKET)hdl, 0)
closeOnDealloc: flag];
#else
return [self initWithFileDescriptor: (gsaddr)hdl closeOnDealloc: flag];
#endif
}
- (void) checkAccept
{
if (acceptOK == NO)
{
[NSException raise: NSFileHandleOperationException
format: @"accept not permitted in this file handle"];
}
if (readInfo)
{
id operation = [readInfo objectForKey: NotificationKey];
if (operation == NSFileHandleConnectionAcceptedNotification)
{
[NSException raise: NSFileHandleOperationException
format: @"accept already in progress"];
}
else
{
[NSException raise: NSFileHandleOperationException
format: @"read already in progress"];
}
}
}
- (void) checkConnect
{
if (connectOK == NO)
{
[NSException raise: NSFileHandleOperationException
format: @"connect not permitted in this file handle"];
}
if ([writeInfo count] > 0)
{
id info = [writeInfo objectAtIndex: 0];
id operation = [info objectForKey: NotificationKey];
if (operation == GSFileHandleConnectCompletionNotification)
{
[NSException raise: NSFileHandleOperationException
format: @"connect already in progress"];
}
else
{
[NSException raise: NSFileHandleOperationException
format: @"write already in progress"];
}
}
}
- (void) checkRead
{
if (readOK == NO)
{
[NSException raise: NSFileHandleOperationException
format: @"read not permitted on this file handle"];
}
if (readInfo)
{
id operation = [readInfo objectForKey: NotificationKey];
if (operation == NSFileHandleConnectionAcceptedNotification)
{
[NSException raise: NSFileHandleOperationException
format: @"accept already in progress"];
}
else
{
[NSException raise: NSFileHandleOperationException
format: @"read already in progress"];
}
}
}
- (void) checkWrite
{
if (writeOK == NO)
{
[NSException raise: NSFileHandleOperationException
format: @"write not permitted in this file handle"];
}
if ([writeInfo count] > 0)
{
id info = [writeInfo objectAtIndex: 0];
id operation = [info objectForKey: NotificationKey];
if (operation != GSFileHandleWriteCompletionNotification)
{
[NSException raise: NSFileHandleOperationException
format: @"connect in progress"];
}
}
}
// Returning file handles
- (int) fileDescriptor
{
return descriptor;
}
- (void*) nativeHandle
{
#if defined(__MINGW__)
return (void*)(SOCKET)_get_osfhandle(descriptor);
#else
return (void*)descriptor;
#endif
}
// Synchronous I/O operations
- (NSData*) availableData
{
char buf[NETBUF_SIZE];
NSMutableData* d;
int len;
[self checkRead];
if (isNonBlocking == YES)
{
[self setNonBlocking: NO];
}
d = [NSMutableData dataWithCapacity: 0];
if (isStandardFile)
{
while ((len = [self read: buf length: sizeof(buf)]) > 0)
{
[d appendBytes: buf length: len];
}
}
else
{
len = [self read: buf length: sizeof(buf)];
if (len > 0)
{
[d appendBytes: buf length: len];
}
}
if (len < 0)
{
[NSException raise: NSFileHandleOperationException
format: @"unable to read from descriptor - %s",
GSLastErrorStr(errno)];
}
return d;
}
- (NSData*) readDataToEndOfFile
{
char buf[NETBUF_SIZE];
NSMutableData* d;
int len;
[self checkRead];
if (isNonBlocking == YES)
{
[self setNonBlocking: NO];
}
d = [NSMutableData dataWithCapacity: 0];
while ((len = [self read: buf length: sizeof(buf)]) > 0)
{
[d appendBytes: buf length: len];
}
if (len < 0)
{
[NSException raise: NSFileHandleOperationException
format: @"unable to read from descriptor - %s",
GSLastErrorStr(errno)];
}
return d;
}
- (NSData*) readDataOfLength: (unsigned)len
{
NSMutableData* d;
int got;
[self checkRead];
if (isNonBlocking == YES)
{
[self setNonBlocking: NO];
}
if (len <= 65536)
{
char *buf;
buf = NSZoneMalloc(NSDefaultMallocZone(), len);
d = [NSMutableData dataWithBytesNoCopy: buf length: len];
got = [self read: [d mutableBytes] length: len];
if (got < 0)
{
[NSException raise: NSFileHandleOperationException
format: @"unable to read from descriptor - %s",
GSLastErrorStr(errno)];
}
[d setLength: got];
}
else
{
char buf[NETBUF_SIZE];
d = [NSMutableData dataWithCapacity: 0];
do
{
int chunk = len > sizeof(buf) ? sizeof(buf) : len;
got = [self read: buf length: chunk];
if (got > 0)
{
[d appendBytes: buf length: got];
len -= got;
}
else if (got < 0)
{
[NSException raise: NSFileHandleOperationException
format: @"unable to read from descriptor - %s",
GSLastErrorStr(errno)];
}
}
while (len > 0 && got > 0);
}
return d;
}
- (void) writeData: (NSData*)item
{
int rval = 0;
const void* ptr = [item bytes];
unsigned int len = [item length];
unsigned int pos = 0;
[self checkWrite];
if (isNonBlocking == YES)
{
[self setNonBlocking: NO];
}
while (pos < len)
{
int toWrite = len - pos;
if (toWrite > NETBUF_SIZE)
{
toWrite = NETBUF_SIZE;
}
rval = [self write: (char*)ptr+pos length: toWrite];
if (rval < 0)
{
if (errno == EAGAIN || errno == EINTR)
{
rval = 0;
}
else
{
break;
}
}
pos += rval;
}
if (rval < 0)
{
[NSException raise: NSFileHandleOperationException
format: @"unable to write to descriptor - %s",
GSLastErrorStr(errno)];
}
}
// Asynchronous I/O operations
- (void) acceptConnectionInBackgroundAndNotifyForModes: (NSArray*)modes
{
[self checkAccept];
readMax = 0;
RELEASE(readInfo);
readInfo = [[NSMutableDictionary alloc] initWithCapacity: 4];
[readInfo setObject: NSFileHandleConnectionAcceptedNotification
forKey: NotificationKey];
[self watchReadDescriptorForModes: modes];
}
- (void) readDataInBackgroundAndNotifyLength: (unsigned)len
forModes: (NSArray*)modes
{
NSMutableData *d;
[self checkRead];
if (len > 0x7fffffff)
{
[NSException raise: NSInvalidArgumentException
format: @"length (%u) too large", len];
}
readMax = len;
RELEASE(readInfo);
readInfo = [[NSMutableDictionary alloc] initWithCapacity: 4];
[readInfo setObject: NSFileHandleReadCompletionNotification
forKey: NotificationKey];
d = [[NSMutableData alloc] initWithCapacity: readMax];
[readInfo setObject: d forKey: NSFileHandleNotificationDataItem];
RELEASE(d);
[self watchReadDescriptorForModes: modes];
}
- (void) readInBackgroundAndNotifyForModes: (NSArray*)modes
{
NSMutableData *d;
[self checkRead];
readMax = -1; // Accept any quantity of data.
RELEASE(readInfo);
readInfo = [[NSMutableDictionary alloc] initWithCapacity: 4];
[readInfo setObject: NSFileHandleReadCompletionNotification
forKey: NotificationKey];
d = [[NSMutableData alloc] initWithCapacity: 0];
[readInfo setObject: d forKey: NSFileHandleNotificationDataItem];
RELEASE(d);
[self watchReadDescriptorForModes: modes];
}
- (void) readToEndOfFileInBackgroundAndNotifyForModes: (NSArray*)modes
{
NSMutableData *d;
[self checkRead];
readMax = 0;
RELEASE(readInfo);
readInfo = [[NSMutableDictionary alloc] initWithCapacity: 4];
[readInfo setObject: NSFileHandleReadToEndOfFileCompletionNotification
forKey: NotificationKey];
d = [[NSMutableData alloc] initWithCapacity: 0];
[readInfo setObject: d forKey: NSFileHandleNotificationDataItem];
RELEASE(d);
[self watchReadDescriptorForModes: modes];
}
- (void) waitForDataInBackgroundAndNotifyForModes: (NSArray*)modes
{
[self checkRead];
readMax = 0;
RELEASE(readInfo);
readInfo = [[NSMutableDictionary alloc] initWithCapacity: 4];
[readInfo setObject: NSFileHandleDataAvailableNotification
forKey: NotificationKey];
[readInfo setObject: [NSMutableData dataWithCapacity: 0]
forKey: NSFileHandleNotificationDataItem];
[self watchReadDescriptorForModes: modes];
}
// Seeking within a file
- (unsigned long long) offsetInFile
{
off_t result = -1;
if (isStandardFile && descriptor >= 0)
{
#if USE_ZLIB
if (gzDescriptor != 0)
{
result = gzseek(gzDescriptor, 0, SEEK_CUR);
}
else
#endif
#if defined(__MINGW__)
result = _lseek(descriptor, 0, SEEK_CUR);
#else
result = lseek(descriptor, 0, SEEK_CUR);
#endif
}
if (result < 0)
{
[NSException raise: NSFileHandleOperationException
format: @"failed to move to offset in file - %s",
GSLastErrorStr(errno)];
}
return (unsigned long long)result;
}
- (unsigned long long) seekToEndOfFile
{
off_t result = -1;
if (isStandardFile && descriptor >= 0)
{
#if USE_ZLIB
if (gzDescriptor != 0)
{
result = gzseek(gzDescriptor, 0, SEEK_END);
}
else
#endif
#if defined(__MINGW__)
result = _lseek(descriptor, 0, SEEK_END);
#else
result = lseek(descriptor, 0, SEEK_END);
#endif
}
if (result < 0)
{
[NSException raise: NSFileHandleOperationException
format: @"failed to move to offset in file - %s",
GSLastErrorStr(errno)];
}
return (unsigned long long)result;
}
- (void) seekToFileOffset: (unsigned long long)pos
{
off_t result = -1;
if (isStandardFile && descriptor >= 0)
{
#if USE_ZLIB
if (gzDescriptor != 0)
{
result = gzseek(gzDescriptor, (off_t)pos, SEEK_SET);
}
else
#endif
#if defined(__MINGW__)
result = _lseek(descriptor, (off_t)pos, SEEK_SET);
#else
result = lseek(descriptor, (off_t)pos, SEEK_SET);
#endif
}
if (result < 0)
{
[NSException raise: NSFileHandleOperationException
format: @"failed to move to offset in file - %s",
GSLastErrorStr(errno)];
}
}
// Operations on file
- (void) closeFile
{
if (descriptor < 0)
{
[NSException raise: NSFileHandleOperationException
format: @"attempt to close closed file"];
}
[self ignoreReadDescriptor];
[self ignoreWriteDescriptor];
[self setNonBlocking: wasNonBlocking];
#if USE_ZLIB
if (gzDescriptor != 0)
{
gzclose(gzDescriptor);
gzDescriptor = 0;
}
#endif
#if defined(__MINGW__)
if (isStandardFile)
{
(void)_close(descriptor);
}
else
{
(void)closesocket((SOCKET)_get_osfhandle(descriptor));
}
#else
(void)close(descriptor);
#endif
descriptor = -1;
acceptOK = NO;
connectOK = NO;
readOK = NO;
writeOK = NO;
/*
* Clear any pending operations on the file handle, sending
* notifications if necessary.
*/
if (readInfo)
{
[readInfo setObject: @"File handle closed locally"
forKey: GSFileHandleNotificationError];
[self postReadNotification];
}
if ([writeInfo count])
{
NSMutableDictionary *info = [writeInfo objectAtIndex: 0];
[info setObject: @"File handle closed locally"
forKey: GSFileHandleNotificationError];
[self postWriteNotification];
[writeInfo removeAllObjects];
}
}
- (void) synchronizeFile
{
if (isStandardFile)
{
#if defined(__MINGW__)
(void)_commit(descriptor);
#else
(void)sync();
#endif
}
}
- (void) truncateFileAtOffset: (unsigned long long)pos
{
#if defined(__MINGW__)
_chsize(descriptor, pos);
#else
if (isStandardFile && descriptor >= 0)
{
(void)ftruncate(descriptor, pos);
}
#endif
[self seekToFileOffset: pos];
}
- (void) writeInBackgroundAndNotify: (NSData*)item forModes: (NSArray*)modes
{
NSMutableDictionary* info;
[self checkWrite];
info = [[NSMutableDictionary alloc] initWithCapacity: 4];
[info setObject: item forKey: NSFileHandleNotificationDataItem];
[info setObject: GSFileHandleWriteCompletionNotification
forKey: NotificationKey];
if (modes != nil)
{
[info setObject: modes forKey: NSFileHandleNotificationMonitorModes];
}
[writeInfo addObject: info];
RELEASE(info);
[self watchWriteDescriptor];
}
- (void) writeInBackgroundAndNotify: (NSData*)item;
{
[self writeInBackgroundAndNotify: item forModes: nil];
}
- (void) postReadNotification
{
NSMutableDictionary *info = readInfo;
NSNotification *n;
NSNotificationQueue *q;
NSArray *modes;
NSString *name;
[self ignoreReadDescriptor];
readInfo = nil;
readMax = 0;
modes = (NSArray*)[info objectForKey: NSFileHandleNotificationMonitorModes];
name = (NSString*)[info objectForKey: NotificationKey];
n = [NSNotification notificationWithName: name object: self userInfo: info];
RELEASE(info); /* Retained by the notification. */
q = [NSNotificationQueue defaultQueue];
[q enqueueNotification: n
postingStyle: NSPostASAP
coalesceMask: NSNotificationNoCoalescing
forModes: modes];
}
- (void) postWriteNotification
{
NSMutableDictionary *info = [writeInfo objectAtIndex: 0];
NSNotificationQueue *q;
NSNotification *n;
NSArray *modes;
NSString *name;
[self ignoreWriteDescriptor];
modes = (NSArray*)[info objectForKey: NSFileHandleNotificationMonitorModes];
name = (NSString*)[info objectForKey: NotificationKey];
n = [NSNotification notificationWithName: name object: self userInfo: info];
writePos = 0;
[writeInfo removeObjectAtIndex: 0]; /* Retained by notification. */
q = [NSNotificationQueue defaultQueue];
[q enqueueNotification: n
postingStyle: NSPostASAP
coalesceMask: NSNotificationNoCoalescing
forModes: modes];
if ((writeOK || connectOK) && [writeInfo count] > 0)
{
[self watchWriteDescriptor]; /* In case of queued writes. */
}
}
- (BOOL) readInProgress
{
if (readInfo)
{
return YES;
}
return NO;
}
- (BOOL) writeInProgress
{
if ([writeInfo count] > 0)
{
return YES;
}
return NO;
}
- (void) ignoreReadDescriptor
{
NSRunLoop *l;
NSArray *modes;
if (descriptor < 0)
{
return;
}
l = [NSRunLoop currentRunLoop];
modes = nil;
if (readInfo)
{
modes = (NSArray*)[readInfo objectForKey:
NSFileHandleNotificationMonitorModes];
}
if (modes && [modes count])
{
unsigned int i;
for (i = 0; i < [modes count]; i++)
{
#if defined(__MINGW__)
[l removeEvent: (void*)(gsaddr)(SOCKET)_get_osfhandle(descriptor)
type: ET_RDESC
forMode: [modes objectAtIndex: i]
all: YES];
#else
[l removeEvent: (void*)(gsaddr)descriptor
type: ET_RDESC
forMode: [modes objectAtIndex: i]
all: YES];
#endif
}
}
else
{
#if defined(__MINGW__)
[l removeEvent: (void*)(gsaddr)(SOCKET)_get_osfhandle(descriptor)
type: ET_RDESC
forMode: NSDefaultRunLoopMode
all: YES];
#else
[l removeEvent: (void*)(gsaddr)descriptor
type: ET_RDESC
forMode: NSDefaultRunLoopMode
all: YES];
#endif
}
}
- (void) ignoreWriteDescriptor
{
NSRunLoop *l;
NSArray *modes;
if (descriptor < 0)
{
return;
}
l = [NSRunLoop currentRunLoop];
modes = nil;
if ([writeInfo count] > 0)
{
NSMutableDictionary* info = [writeInfo objectAtIndex: 0];
modes=(NSArray*)[info objectForKey: NSFileHandleNotificationMonitorModes];
}
if (modes && [modes count])
{
unsigned int i;
for (i = 0; i < [modes count]; i++)
{
#if defined(__MINGW__)
[l removeEvent: (void*)(gsaddr)(SOCKET)_get_osfhandle(descriptor)
type: ET_WDESC
forMode: [modes objectAtIndex: i]
all: YES];
#else
[l removeEvent: (void*)(gsaddr)descriptor
type: ET_WDESC
forMode: [modes objectAtIndex: i]
all: YES];
#endif
}
}
else
{
#if defined(__MINGW__)
[l removeEvent: (void*)(gsaddr)(SOCKET)_get_osfhandle(descriptor)
type: ET_WDESC
forMode: NSDefaultRunLoopMode
all: YES];
#else
[l removeEvent: (void*)(gsaddr)descriptor
type: ET_WDESC
forMode: NSDefaultRunLoopMode
all: YES];
#endif
}
}
- (void) watchReadDescriptorForModes: (NSArray*)modes;
{
NSRunLoop *l;
if (descriptor < 0)
{
return;
}
l = [NSRunLoop currentRunLoop];
[self setNonBlocking: YES];
if (modes && [modes count])
{
unsigned int i;
for (i = 0; i < [modes count]; i++)
{
#if defined(__MINGW__)
[l addEvent: (void*)(gsaddr)(SOCKET)_get_osfhandle(descriptor)
type: ET_RDESC
watcher: self
forMode: [modes objectAtIndex: i]];
#else
[l addEvent: (void*)(gsaddr)descriptor
type: ET_RDESC
watcher: self
forMode: [modes objectAtIndex: i]];
#endif
}
[readInfo setObject: modes forKey: NSFileHandleNotificationMonitorModes];
}
else
{
#if defined(__MINGW__)
[l addEvent: (void*)(gsaddr)(SOCKET)_get_osfhandle(descriptor)
type: ET_RDESC
watcher: self
forMode: NSDefaultRunLoopMode];
#else
[l addEvent: (void*)(gsaddr)descriptor
type: ET_RDESC
watcher: self
forMode: NSDefaultRunLoopMode];
#endif
}
}
- (void) watchWriteDescriptor
{
if (descriptor < 0)
{
return;
}
if ([writeInfo count] > 0)
{
NSMutableDictionary *info = [writeInfo objectAtIndex: 0];
NSRunLoop *l = [NSRunLoop currentRunLoop];
NSArray *modes = nil;
modes = [info objectForKey: NSFileHandleNotificationMonitorModes];
[self setNonBlocking: YES];
if (modes && [modes count])
{
unsigned int i;
for (i = 0; i < [modes count]; i++)
{
#if defined(__MINGW__)
[l addEvent: (void*)(gsaddr)(SOCKET)_get_osfhandle(descriptor)
type: ET_WDESC
watcher: self
forMode: [modes objectAtIndex: i]];
#else
[l addEvent: (void*)(gsaddr)descriptor
type: ET_WDESC
watcher: self
forMode: [modes objectAtIndex: i]];
#endif
}
}
else
{
#if defined(__MINGW__)
[l addEvent: (void*)(gsaddr)(SOCKET)_get_osfhandle(descriptor)
type: ET_WDESC
watcher: self
forMode: NSDefaultRunLoopMode];
#else
[l addEvent: (void*)(gsaddr)descriptor
type: ET_WDESC
watcher: self
forMode: NSDefaultRunLoopMode];
#endif
}
}
}
- (void) receivedEvent: (void*)data
type: (RunLoopEventType)type
extra: (void*)extra
forMode: (NSString*)mode
{
NSString *operation;
NSDebugMLLog(@"NSFileHandle", @"%@ event: %d", self, type);
if (isNonBlocking == NO)
{
[self setNonBlocking: YES];
}
if (type == ET_RDESC)
{
operation = [readInfo objectForKey: NotificationKey];
if (operation == NSFileHandleConnectionAcceptedNotification)
{
struct sockaddr_in buf;
#if defined(__MINGW__)
SOCKET desc;
#else
int desc;
#endif
int blen = sizeof(buf);
#if defined(__MINGW__)
desc = accept((SOCKET)_get_osfhandle(descriptor), (struct sockaddr*)&buf, &blen);
#else
desc = accept(descriptor, (struct sockaddr*)&buf, &blen);
#endif
if (desc == INVALID_SOCKET)
{
NSString *s;
s = [NSString stringWithFormat: @"Accept attempt failed - %s",
GSLastErrorStr(errno)];
[readInfo setObject: s forKey: GSFileHandleNotificationError];
}
else
{ // Accept attempt completed.
GSFileHandle *h;
struct sockaddr_in sin;
int size = sizeof(sin);
#if defined(__MINGW__)
h = [[[self class] alloc] initWithNativeHandle: (void*)desc
closeOnDealloc: YES];
#else
h = [[[self class] alloc] initWithFileDescriptor: desc
closeOnDealloc: YES];
#endif
h->isSocket = YES;
getpeername(desc, (struct sockaddr*)&sin, &size);
[h setAddr: &sin];
[readInfo setObject: h
forKey: NSFileHandleNotificationFileHandleItem];
RELEASE(h);
}
[self postReadNotification];
}
else if (operation == NSFileHandleDataAvailableNotification)
{
[self postReadNotification];
}
else
{
NSMutableData *item;
int length;
int received = 0;
char buf[NETBUF_SIZE];
item = [readInfo objectForKey: NSFileHandleNotificationDataItem];
/*
* We may have a maximum data size set...
*/
if (readMax > 0)
{
length = (unsigned int)readMax - [item length];
if (length > (int)sizeof(buf))
{
length = sizeof(buf);
}
}
else
{
length = sizeof(buf);
}
received = [self read: buf length: length];
if (received == 0)
{ // Read up to end of file.
[self postReadNotification];
}
else if (received < 0)
{
if (errno != EAGAIN && errno != EINTR)
{
NSString *s;
s = [NSString stringWithFormat: @"Read attempt failed - %s",
GSLastErrorStr(errno)];
[readInfo setObject: s forKey: GSFileHandleNotificationError];
[self postReadNotification];
}
}
else
{
[item appendBytes: buf length: received];
if (readMax < 0 || (readMax > 0 && (int)[item length] == readMax))
{
// Read a single chunk of data
[self postReadNotification];
}
}
}
}
else
{
NSMutableDictionary *info;
info = [writeInfo objectAtIndex: 0];
operation = [info objectForKey: NotificationKey];
if (operation == GSFileHandleConnectCompletionNotification
|| operation == GSSOCKSConnect)
{ // Connection attempt completed.
int result;
int len = sizeof(result);
#if defined(__MINGW__)
if (getsockopt((SOCKET)_get_osfhandle(descriptor), SOL_SOCKET, SO_ERROR,
(char*)&result, &len) == 0 && result != 0)
#else
if (getsockopt(descriptor, SOL_SOCKET, SO_ERROR,
(char*)&result, &len) == 0 && result != 0)
#endif
{
NSString *s;
s = [NSString stringWithFormat: @"Connect attempt failed - %s",
GSLastErrorStr(result)];
[info setObject: s forKey: GSFileHandleNotificationError];
}
else
{
readOK = YES;
writeOK = YES;
}
connectOK = NO;
[self postWriteNotification];
}
else
{
NSData *item;
int length;
const void *ptr;
item = [info objectForKey: NSFileHandleNotificationDataItem];
length = [item length];
ptr = [item bytes];
if (writePos < length)
{
int written;
written = [self write: (char*)ptr+writePos
length: length-writePos];
if (written <= 0)
{
if (written < 0 && errno != EAGAIN && errno != EINTR)
{
NSString *s;
s = [NSString stringWithFormat:
@"Write attempt failed - %s", GSLastErrorStr(errno)];
[info setObject: s forKey: GSFileHandleNotificationError];
[self postWriteNotification];
}
}
else
{
writePos += written;
}
}
if (writePos >= length)
{ // Write operation completed.
[self postWriteNotification];
}
}
}
}
- (NSDate*) timedOutEvent: (void*)data
type: (RunLoopEventType)type
forMode: (NSString*)mode
{
return nil; /* Don't restart timed out events */
}
- (void) setAddr: (struct sockaddr_in *)sin
{
address = [[NSString alloc] initWithCString: (char*)inet_ntoa(sin->sin_addr)];
service = [[NSString alloc] initWithFormat: @"%d",
(int)GSSwapBigI16ToHost(sin->sin_port)];
protocol = @"tcp";
}
- (void) setNonBlocking: (BOOL)flag
{
if (descriptor < 0)
{
return;
}
else if (isStandardFile == YES)
{
return;
}
else if (isNonBlocking == flag)
{
return;
}
else
{
#if defined(__MINGW__)
unsigned long dummy;
if (isSocket != YES)
return;
if (flag)
{
dummy = 1;
if (ioctlsocket((SOCKET)_get_osfhandle(descriptor), FIONBIO, &dummy)
== SOCKET_ERROR)
{
NSLog(@"unable to set non-blocking mode - %s",
GSLastErrorStr(errno));
}
}
else
{
dummy = 0;
if (ioctlsocket((SOCKET)_get_osfhandle(descriptor), FIONBIO, &dummy)
== SOCKET_ERROR)
{
NSLog(@"unable to set blocking mode - %s",
GSLastErrorStr(errno));
}
}
#else
int e;
if ((e = fcntl(descriptor, F_GETFL, 0)) >= 0)
{
if (flag == YES)
{
e |= NBLK_OPT;
}
else
{
e &= ~NBLK_OPT;
}
if (fcntl(descriptor, F_SETFL, e) < 0)
{
NSLog(@"unable to set non-blocking mode for %d - %s",
descriptor, GSLastErrorStr(errno));
}
else
{
isNonBlocking = flag;
}
}
else
{
NSLog(@"unable to get non-blocking mode for %d - %s",
descriptor, GSLastErrorStr(errno));
}
#endif
}
}
- (NSString*) socketAddress
{
return address;
}
- (NSString*) socketProtocol
{
return protocol;
}
- (NSString*) socketService
{
return service;
}
- (BOOL) useCompression
{
#if USE_ZLIB
int d;
if (gzDescriptor != 0)
{
return YES; // Already open
}
if (descriptor < 0)
{
return NO; // No descriptor available.
}
if (readOK == YES && writeOK == YES)
{
return NO; // Can't both read and write.
}
d = dup(descriptor);
if (d < 0)
{
return NO; // No descriptor available.
}
if (readOK == YES)
{
gzDescriptor = gzdopen(d, "rb");
}
else
{
gzDescriptor = gzdopen(d, "wb");
}
if (gzDescriptor == 0)
{
close(d);
return NO; // Open attempt failed.
}
return YES;
#endif
return NO;
}
@end
Reference in a new issue View git blame Copy permalink