Sockets don't quite work, but they will almost work.
[ITFoundation.git] / ITInetSocket.m
index 0d78f87..b61e44f 100755 (executable)
 //
 
 #import "ITInetSocket.h"
+#import "ITServiceBrowserDelegate.h"
+#import <sys/socket.h>
+#import <arpa/inet.h>
+#import <unistd.h>
 
+@interface ITInetSocket(Debugging)
+-(NSString*)dumpv6Addrinfo:(struct addrinfo *)_ai;
+@end
+
+@interface ITInetSocket(Private)
+-(void)doConnSetupWithHost:(NSString*)host namedPort:(NSString*)namedPort;
+-(void)realDoConnection;
+-(void)spinoffReadLoop;
+-(void)socketReadLoop:(id)data;
+@end
 
 @implementation ITInetSocket
--(id)initWithFD:(int)fd delegate:(id)d
++(void)startAutoconnectingToService:(NSString*)type delegate:(id <ITInetSocketDelegate,NSObject>)d
+{
+    NSNetServiceBrowser *browse = [[NSNetServiceBrowser alloc] init];
+    ITServiceBrowserDelegate *bd = [[ITServiceBrowserDelegate alloc] initWithDelegate:d];
+
+    [browse setDelegate:bd];
+    [browse searchForServicesOfType:[NSString stringWithFormat:@"_%@._tcp.",type] inDomain:@""];
+}
+
+-(id)initWithFD:(int)fd delegate:(id <ITInetSocketDelegate,NSObject>)d
+{
+    if (self = [super init])
+          {
+          state = ITInetSocketListening;
+          sockfd = fd;
+          delegate = [d retain];
+          port = 0;
+          writePipe = [[ITByteStream alloc] initWithDelegate:self];
+          readPipe = [[ITByteStream alloc] initWithDelegate:d];
+          ai = nil;
+          sarr = nil;
+          bufs = 512;
+          actionflag = dieflag = 0;
+          nc = 0;
+          }
+    [self spinoffReadLoop];
+    return self;
+}
+
+-(id)initWithDelegate:(id <ITInetSocketDelegate,NSObject>)d
+{
+    if (self = [super init])
+          {
+          state = ITInetSocketDisconnected;
+          sockfd = -1;
+          delegate = [d retain];
+          port = 0;
+          writePipe = [[ITByteStream alloc] initWithDelegate:self];
+          readPipe = [[ITByteStream alloc] initWithDelegate:d];
+          ai = nil;
+          sarr = nil;
+          bufs = 512;
+          actionflag = dieflag = 0;
+          nc = 1;
+          }
+    return self;
+}
+
+
+-(void) dealloc
 {
-    return nil;
+    shutdown(sockfd,2);
+    [delegate release];
+    [writePipe release];
+    [readPipe release];
+    if (!sarr) freeaddrinfo(ai);
+    [sarr release];
+}
+
+-(void) connectToHost:(NSString*)host onPort:(short)thePort
+{
+    if (state == ITInetSocketDisconnected)
+          {
+          NSString *nport = [[NSNumber numberWithShort:thePort] stringValue];
+          [self doConnSetupWithHost:host namedPort:nport];
+          }
+}
+
+-(void) connectToHost:(NSString*)host onNamedPort:(NSString*)_port
+{
+    if (state == ITInetSocketDisconnected)
+          {
+          [self doConnSetupWithHost:host namedPort:_port];
+          }
+}
+
+-(void) connectWithSockaddrArray:(NSArray*)arr
+{
+    if (state == ITInetSocketDisconnected)
+          {
+          NSEnumerator *e = [arr objectEnumerator];
+          NSData *d;
+          struct addrinfo *a;
+          ai = malloc(sizeof(struct addrinfo));
+          a = ai;
+          while (d = [e nextObject])
+          {
+                 struct sockaddr *s = (struct sockaddr*)[d bytes];
+                 bzero(a,sizeof(struct addrinfo));
+                 a->ai_family = s->sa_family;
+                 a->ai_addr = s;
+                 a->ai_next = malloc(sizeof(struct addrinfo));
+                 a = a->ai_next;
+          }
+          ai_cur = ai;
+          [self realDoConnection];
+          }
 }
 
 -(void)disconnect
 {
+    NSLog(@"Got a disconnect");
+    dieflag = 1;
+}
+
+-(void)retryConnection
+{
+    ai_cur = ai_cur->ai_next?ai_cur->ai_next:ai_cur;
+    [self disconnect];
+    [self realDoConnection];
+}
+
+-(ITInetSocketState)state
+{
+    return state;
+}
+-(id <ITInetSocketDelegate>)delegate
+{
+    return delegate;
+}
+
+-(unsigned short)bufferSize
+{
+    return bufs;
+}
+
+-(void)setBufferSize:(unsigned short)_bufs
+{
+    bufs = _bufs;
+}
+
+-(void)newDataAdded:(ITByteStream*)sender
+{
+    NSLog(@"writePipe got something");
+    actionflag = 1;
+    do {} while (actionflag == 1);
+    NSLog(@"thread saw actionFlag");
 }
 @end
+
+@implementation ITInetSocket(Debugging)
+-(NSString*)dumpv6Addrinfo:(struct addrinfo *)_ai
+{
+    const char *cfmt =
+    "{\n"
+    "Flags = %x\n"
+    "Family = %x\n"
+    "Socktype = %x\n"
+    "Protocol = %x\n"
+    "Canonname = %s\n"
+    "Sockaddr = \n"
+    "\t{\n"
+    "\tLength = %x\n"
+    "\tFamily = %x\n"
+    "\tPort = %d\n"
+    "\tFlowinfo = %x\n"
+    "\tAddr = {%hx:%hx:%hx:%hx:%hx:%hx:%hx:%hx}\n"
+    "\tScope = %x\n"
+    "\t}\n"
+    "Next = %@\n"
+    "}\n";
+    NSString *nsfmt = [NSString stringWithCString:cfmt];
+    struct sockaddr_in6 *sa = (struct sockaddr_in6 *)_ai->ai_addr;
+    NSString *buf = [[NSMutableString alloc] initWithFormat:nsfmt,_ai->ai_flags,_ai->ai_family,_ai->ai_socktype,_ai->ai_protocol,_ai->ai_canonname?_ai->ai_canonname:"",sa->sin6_len,sa->sin6_family,sa->sin6_port,sa->sin6_flowinfo,sa->sin6_addr.__u6_addr.__u6_addr16[0],sa->sin6_addr.__u6_addr.__u6_addr16[1],sa->sin6_addr.__u6_addr.__u6_addr16[2],sa->sin6_addr.__u6_addr.__u6_addr16[3],sa->sin6_addr.__u6_addr.__u6_addr16[4],sa->sin6_addr.__u6_addr.__u6_addr16[5],sa->sin6_addr.__u6_addr.__u6_addr16[6],sa->sin6_addr.__u6_addr.__u6_addr16[7],sa->sin6_scope_id,_ai->ai_next?[self dumpv6Addrinfo:_ai->ai_next]:@"nil"];
+
+    return buf;
+}
+@end
+
+@implementation ITInetSocket(Private)
+-(void)doConnSetupWithHost:(NSString*)host namedPort:(NSString*)namedPort
+{
+    struct addrinfo hints;
+          int err;
+          const char *portNam = [namedPort cString], *hostCStr = [host cString];
+          state = ITInetSocketConnecting;
+          hints.ai_flags = 0;
+          hints.ai_family = PF_UNSPEC;
+          hints.ai_socktype = SOCK_STREAM;
+          hints.ai_protocol = IPPROTO_TCP;
+          hints.ai_addrlen = 0;
+          hints.ai_canonname = NULL;
+          hints.ai_addr = NULL;
+          hints.ai_next = NULL;
+
+          err = getaddrinfo(hostCStr,portNam,&hints,&ai);
+
+          NSLog(@"%s, h %@ p %@",gai_strerror(err),host,namedPort);
+          NSLog(ai?[self dumpv6Addrinfo:ai]:@"");
+          ai_cur = ai;
+          [self realDoConnection];
+}
+
+-(void)realDoConnection
+{
+    sockfd = socket(ai_cur->ai_family,SOCK_STREAM,IPPROTO_TCP);
+    [self spinoffReadLoop];
+}
+
+-(void)spinoffReadLoop
+{
+    NSPort *p1 = [NSPort port], *p2 = [NSPort port];
+    NSConnection *dcon = [[NSConnection alloc] initWithReceivePort:p1 sendPort:p2];
+    NSArray *par = [NSArray arrayWithObjects:p2,p1,nil];
+    [dcon setRootObject:delegate];
+    [NSThread detachNewThreadSelector:@selector(socketReadLoop:) toTarget:self withObject:par]; //spawn read thread
+}
+
+-(void)socketReadLoop:(id)data
+{
+    NSAutoreleasePool *ap = [[NSAutoreleasePool alloc] init];
+    NSConnection *dcon = [[NSConnection alloc] initWithReceivePort:[data objectAtIndex:0] sendPort:[data objectAtIndex:1]];
+    NSProxy *dp = [[dcon rootProxy] retain];
+    char *buf = malloc(bufs);
+    unsigned long readLen = 0;
+    signed int err;
+    [readPipe setDelegate:dp];
+    if (nc){
+    NSLog(@"Connecting");
+    err = connect(sockfd,ai_cur->ai_addr,ai_cur->ai_addrlen);
+    if (err == -1)
+          {
+          perror("CAwh");
+          [(id)dp errorOccured:ITInetCouldNotConnect during:ITInetSocketConnecting onSocket:self];
+          goto dieaction;
+          }
+    }
+    NSLog(@"Sending finishedConnecting");
+    [(id)dp finishedConnecting:self];
+lstart:
+          state = ITInetSocketListening;
+          while (!actionflag && !dieflag)
+          {
+                 readLen = recv(sockfd,buf,bufs,0);
+                 state = ITInetSocketReading;
+                 if (readLen == -1) {[(id)dp errorOccured:ITInetConnectionDropped during:ITInetSocketReading onSocket:self];goto dieaction;}
+                 if (readLen) {
+                        NSLog(@"recv'd");
+                        NSLog(@"Doing writeData to readPipe");
+                        [readPipe writeBytes:buf len:readLen];
+                        [ap release];
+                        ap = [[NSAutoreleasePool alloc] init];
+                 }
+          }
+          state = ITInetSocketListening;
+    actionflag = 0;
+
+    if (dieflag)
+          {
+dieaction:
+          state = ITInetSocketDisconnected;
+          perror("Awh");
+          free(buf);
+          shutdown(sockfd,2);
+          [dcon release];
+          [dp release];
+          [ap release];
+          dieflag = 0;
+          return;
+          }
+
+    {
+          state = ITInetSocketWriting;
+          NSLog(@"Emptying writePipe");
+          NSData *d = [writePipe readAllData];
+          write(sockfd,[d bytes],[d length]);
+          [ap release];
+          ap = [[NSAutoreleasePool alloc] init];
+          goto lstart;
+          }
+    goto dieaction;
+}
+@end
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