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我使用NSStream和SSL属性进行套接字连接.当我使用本地IP地址(如192.168.1.77)时,它工作正常.但是,如果我使用任何服务器,如www.xyz.com(它有SecurityLevelTLSv1),它会显示错误错误代码:-9843,消息:操作无法完成.(NSUnknownErrorDomain错误-9843.)

这是我的代码:

-(void) startSocket{
    NSURL *website = [NSURL URLWithString:@"www.xyz.com"];
    NSHost *host = [NSHost hostWithName:[website host]];
    if(host) {   
        NSLog(@"Valid host");
        [NSStream getStreamsToHost:host port:443 inputStream:&iStream outputStream:&oStream] ;
        [self openStream];
    }.

-(void)openStream{
NSMutableDictionary *settings = [NSMutableDictionary dictionaryWithCapacity:1];
    [settings setObject:(NSString *)NSStreamSocketSecurityLevelTLSv1 forKey:(NSString *)kCFStreamSSLLevel];
    [settings setObject:[NSNumber numberWithBool:YES] forKey:(NSString *)kCFStreamSSLAllowsAnyRoot];

    [iStream retain];   
    [iStream setDelegate:self];
    [iStream scheduleInRunLoop:[NSRunLoop currentRunLoop] forMode:NSDefaultRunLoopMode];
    CFReadStreamSetProperty((CFReadStreamRef)iStream, kCFStreamPropertySSLSettings, (CFTypeRef)settings);
    //[iStream setProperty:NSStreamSocketSecurityLevelTLSv1 forKey:NSStreamSocketSecurityLevelKey];
    [iStream open];

    [oStream retain];
    [oStream setDelegate:self];       
    [oStream scheduleInRunLoop:[NSRunLoop currentRunLoop] forMode:NSDefaultRunLoopMode];   
    CFWriteStreamSetProperty((CFWriteStreamRef)oStream, kCFStreamPropertySSLSettings, (CFTypeRef)settings);
    //[oStream setProperty:NSStreamSocketSecurityLevelTLSv1 forKey:NSStreamSocketSecurityLevelKey];
    [oStream open];
}

我尝试使用NSStream和CFStream.我在两种情况下都得到同样的错误.

调用NSStreamEventOpenCompleted和NSStreamEventErrorOccurred事件.

请帮帮我. …