TCP Streaming for iOS

gistfile1.m

#import <UIKit/UIKit.h>

@interface TESTStreamDelegate : NSObject <NSStreamDelegate>

@property (strong, nonatomic) NSInputStream *inputStream;
@property (strong, nonatomic) NSOutputStream *outputStream;

- (void) request;

@end

@implementation TESTStreamDelegate

@synthesize inputStream;
@synthesize outputStream;

- (void) request
{
    NSUInteger portNo = 80;
    CFStringRef hostName = CFSTR("www.yahoo.co.jp");
    
    CFReadStreamRef readStream;
    CFWriteStreamRef writeStream;
    
    CFStreamCreatePairWithSocketToHost(NULL, hostName, portNo, &readStream, &writeStream);
    
    assert(CFGetRetainCount(readStream) == 1L);
    assert(CFGetRetainCount(writeStream) == 1L);
    
    self.inputStream = (__bridge_transfer NSInputStream*) readStream;
    self.outputStream = (__bridge_transfer NSOutputStream*) writeStream;
    
    [inputStream setDelegate:self];
    [inputStream scheduleInRunLoop:[NSRunLoop currentRunLoop] forMode:NSDefaultRunLoopMode];
    [outputStream setDelegate:self];
    [outputStream scheduleInRunLoop:[NSRunLoop currentRunLoop] forMode:NSDefaultRunLoopMode];
    
    [inputStream open];
    [outputStream open];
    
    const char *request = "GET / HTTP/1.0\r\nHost: www.yahoo.co.jp\r\n\r\n";
    
    [outputStream write:(const uint8_t*)request maxLength:strlen(request)];
}

- (void)stream:(NSStream *)aStream handleEvent:(NSStreamEvent)eventCode
{
    
    switch (eventCode) {
        case NSStreamEventHasBytesAvailable: {
            unsigned char buf[1024];
            NSUInteger len = [(NSInputStream*)aStream read:buf maxLength:1024];
            NSString *str = [[NSString alloc] initWithBytes:buf length:1024 encoding:NSUTF8StringEncoding];
            NSLog(@"%@", str);
        }
        break;
            
        default:
            break;
    }
}

@end