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            writeBuffer = nil;
  27            ai = nil;
  28            }
  29     return self;
  30 }
  31
  32 -(id)initWithDelegate:(id)d
  33 {
  34     if (self = [super init])
  35            {
  36            state = ITInetSocketDisconnected;
  37            sockfd = -1;
  38            delegate = [d retain];
  39            port = 0;
  40            writeBuffer = nil;
  41            ai = nil;
  42            }
  43     return self;
  44 }
  45
  46 -(void) connectToHost:(NSString*)host onPort:(short)thePort
  47 {
  48     if (state == ITInetSocketDisconnected)
  49            {
  50            struct addrinfo hints;
  51            int err;
  52            const char *portNam = [[[NSNumber numberWithShort:thePort] stringValue] cString], *hostCStr = [host cString];
  53
  54            hints.ai_flags = 0;
  55            hints.ai_family = PF_INET6;
  56            hints.ai_socktype = SOCK_STREAM;
  57            hints.ai_protocol = IPPROTO_TCP;
  58            hints.ai_canonname = NULL;
  59            hints.ai_addr = NULL;
  60            hints.ai_next = NULL;
  61
  62            err = getaddrinfo(hostCStr,portNam,&hints,&ai);
  63            if (err == EAI_NODATA) //it's a dotted-decimal IPv4 string, so we use v6compat stuff now
  64            {
  65                   err = getaddrinfo([[NSString stringWithFormat:@"ffff::%s",hostCStr] cString],portNam,&hints,&ai);
  66            }
  67            NSLog([self dumpv6Addrinfo:ai]);
  68            }
  69 }
  70
  71 -(ITInetSocketState)state
  72 {
  73     return state;
  74 }
  75 @end
  76
  77 @implementation ITInetSocket(Debugging)
  78 -(NSString*)dumpv6Addrinfo:(struct addrinfo *)_ai
  79 {
  80     const char *cfmt =
  81     "\{\n"
  82     "Flags = %x\n"
  83     "Family = %x\n"
  84     "Socktype = %x\n"
  85     "Protocol = %x\n"
  86     "Canonname = %s\n"
  87     "Sockaddr = \n"
  88     "{\n"
  89     "\tLength = %x\n"
  90     "\tFamily = %x\n"
  91     "\tPort = %d\n"
  92     "\tFlowinfo = %x\n"
  93     "\tAddr = {%#lx,%#lx,%#lx,%#lx}\n"
  94     "\tScope = %x\n"
  95     "}\n"
  96     "Next = ";
  97     NSString *nsfmt = [NSString stringWithCString:cfmt];
  98     NSMutableString *buf = [[[NSMutableString alloc] init] autorelease];
  99
 100     do
 101            {
 102                   struct sockaddr_in6 *sa = (struct sockaddr_in6 *)_ai->ai_addr;
 103                   [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_addr32[0],sa->sin6_addr.__u6_addr.__u6_addr32[1],sa->sin6_addr.__u6_addr.__u6_addr32[2],sa->sin6_addr.__u6_addr.__u6_addr32[3],sa->sin6_scope_id];
 104            }
 105     while (_ai = _ai->ai_next);
 106     [buf appendString:@"nil\n}"];
 107     return buf;
 108 }
 109 @end