ITInetSocket.m

   1 //
   2 //  ITInetSocket.m
   3 //  ITFoundation
   4 //
   5 //  Created by Alexander Strange on Tue Feb 11 2003.
   6 //  Copyright (c) 2003 __MyCompanyName__. All rights reserved.
   7 //
   8
   9 #import "ITInetSocket.h"
  10 #import <sys/socket.h>
  11 #import <arpa/inet.h>
  12
  13 @interface ITInetSocket(Debugging)
  14 -(NSString*)dumpv6Addrinfo:(struct addrinfo *)_ai;
  15 @end
  16
  17 @implementation ITInetSocket
  18 -(id)initWithFD:(int)fd delegate:(id)d
  19 {
  20     if (self = [super init])
  21            {
  22            state = ITInetSocketListening;
  23            sockfd = fd;
  24            delegate = [d retain];
  25            port = 0;
  26            writePipe = [[ITByteStream alloc] init];
  27            readPipe = [[ITByteStream alloc] init];
  28            ai = nil;
  29            }
  30     return self;
  31 }
  32
  33 -(id)initWithDelegate:(id)d
  34 {
  35     if (self = [super init])
  36            {
  37            state = ITInetSocketDisconnected;
  38            sockfd = -1;
  39            delegate = [d retain];
  40            port = 0;
  41            writePipe = [[ITByteStream alloc] init];
  42            readPipe = [[ITByteStream alloc] init];
  43            ai = nil;
  44            }
  45     return self;
  46 }
  47
  48 -(void) connectToHost:(NSString*)host onPort:(short)thePort
  49 {
  50     if (state == ITInetSocketDisconnected)
  51            {
  52            struct addrinfo hints;
  53            int err;
  54            const char *portNam = [[[NSNumber numberWithShort:thePort] stringValue] cString], *hostCStr = [host cString];
  55
  56            hints.ai_flags = 0;
  57            hints.ai_family = PF_INET6;
  58            hints.ai_socktype = SOCK_STREAM;
  59            hints.ai_protocol = IPPROTO_TCP;
  60            hints.ai_canonname = NULL;
  61            hints.ai_addr = NULL;
  62            hints.ai_next = NULL;
  63
  64            err = getaddrinfo(hostCStr,portNam,&hints,&ai);
  65            if (err == EAI_NODATA) //it's a dotted-decimal IPv4 string, so we use v6compat stuff now
  66            {
  67                   err = getaddrinfo([[NSString stringWithFormat:@"ffff::%s",hostCStr] cString],portNam,&hints,&ai);
  68            }
  69            NSLog([self dumpv6Addrinfo:ai]);
  70            }
  71 }
  72
  73 -(ITInetSocketState)state
  74 {
  75     return state;
  76 }
  77 @end
  78
  79 @implementation ITInetSocket(Debugging)
  80 -(NSString*)dumpv6Addrinfo:(struct addrinfo *)_ai
  81 {
  82     const char *cfmt =
  83     "\{\n"
  84     "Flags = %x\n"
  85     "Family = %x\n"
  86     "Socktype = %x\n"
  87     "Protocol = %x\n"
  88     "Canonname = %s\n"
  89     "Sockaddr = \n"
  90     "{\n"
  91     "\tLength = %x\n"
  92     "\tFamily = %x\n"
  93     "\tPort = %d\n"
  94     "\tFlowinfo = %x\n"
  95     "\tAddr = {%#hx:%#hx:%#hx:%#hx:%#hx:%#hx:%#hx:%#hx}\n"
  96     "\tScope = %x\n"
  97     "}\n"
  98     "Next = ";
  99     NSString *nsfmt = [NSString stringWithCString:cfmt];
 100     NSMutableString *buf = [[[NSMutableString alloc] init] autorelease];
 101
 102     do
 103            {
 104                   struct sockaddr_in6 *sa = (struct sockaddr_in6 *)_ai->ai_addr;
 105                   [buf appendFormat: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];
 106            }
 107     while (_ai = _ai->ai_next);
 108     [buf appendString:@"nil\n}"];
 109     return buf;
 110 }
 111 @end