iOS 应用将适应新的的IPv6-only网络 -解决方案

来源：互联网发布：linux snmp v3 配置编辑：程序博客网时间：2024/05/19 17:09

苹果公司还称“在WWDC 2015上，我们宣布iOS 9开始向IPv6-only网络服务过渡。自2016年6月1日起，开发者所有提交至App Store的应用必须支持IPv6-only网络。由于大部分现有应用程序已经通过NSURLSession和CFNetwork APIs兼容该协议，因此这些应用无需做出调整。但如果你依然使用IPv4 API的或者硬件编码IP地址，那么你需要手动调整应用代码来适应新变化。”

　　除此之外，苹果还提供了相关资料，帮助开发者开始向已经添加了对IPv6-only网络的支持过渡，其中包括了WWDC 2015大会期间的开发者文档等。

[摘录自:http://mt.sohu.com/20160520/n450596544.shtml]

一般的http请求不受影响,但如果使用socket等则需要调整.经测试,目前支付宝,微信均在ipv6下不能正常访问网络.QQ客户端可以.

由于公司项目中使用了CocoaAsyncSocket,经测试,公司的app在ipv6下不能使用.

解决方案:针对ios9做单独处理.

经修改后,测试ios9可以正常使用.

下面是修改:

1,AFNetworkReachabilityManager

+ (instancetype)manager{//#if (defined(__IPHONE_OS_VERSION_MIN_REQUIRED) && __IPHONE_OS_VERSION_MIN_REQUIRED >= 90000) || (defined(__MAC_OS_X_VERSION_MIN_REQUIRED) && __MAC_OS_X_VERSION_MIN_REQUIRED >= 101100)//    struct sockaddr_in6 address;//    bzero(&address, sizeof(address));//    address.sin6_len = sizeof(address);//    address.sin6_family = AF_INET6;//#else//    //    struct sockaddr_in address;//    bzero(&address, sizeof(address));//    address.sin_len = sizeof(address);//    address.sin_family = AF_INET;//#endif            if (IOS9)    {        struct sockaddr_in6 address;        bzero(&address, sizeof(address));        address.sin6_len = sizeof(address);        address.sin6_family = AF_INET6;        return [self managerForAddress:&address];    }    else    {        struct sockaddr_in address;        bzero(&address, sizeof(address));        address.sin_len = sizeof(address);        address.sin_family = AF_INET;        return [self managerForAddress:&address];    }}

2,GCDAsyncSocket使用

GCDAsyncSocket *socketTest = [[GCDAsyncSocket alloc] initWithDelegate:self delegateQueue:dispatch_get_main_queue()];if(IOS9){   socketTest.IPv4PreferredOverIPv6 = NO;}[socketTest connectToHost:@"xxx.xxx.xxx.xxx" onPort:xxx withTimeout:20 error:nil];

3,GCDAsyncSocket.m

+ (NSMutableArray *)lookupHost:(NSString *)host port:(uint16_t)port error:(NSError **)errPtr{LogTrace();NSMutableArray *addresses = nil;NSError *error = nil;if ([host isEqualToString:@"localhost"] || [host isEqualToString:@"loopback"]){// Use LOOPBACK addressstruct sockaddr_in nativeAddr4;nativeAddr4.sin_len         = sizeof(struct sockaddr_in);nativeAddr4.sin_family      = AF_INET;nativeAddr4.sin_port        = htons(port);nativeAddr4.sin_addr.s_addr = htonl(INADDR_LOOPBACK);memset(&(nativeAddr4.sin_zero), 0, sizeof(nativeAddr4.sin_zero));struct sockaddr_in6 nativeAddr6;nativeAddr6.sin6_len        = sizeof(struct sockaddr_in6);nativeAddr6.sin6_family     = AF_INET6;nativeAddr6.sin6_port       = htons(port);nativeAddr6.sin6_flowinfo   = 0;nativeAddr6.sin6_addr       = in6addr_loopback;nativeAddr6.sin6_scope_id   = 0;// Wrap the native address structuresNSData *address4 = [NSData dataWithBytes:&nativeAddr4 length:sizeof(nativeAddr4)];NSData *address6 = [NSData dataWithBytes:&nativeAddr6 length:sizeof(nativeAddr6)];addresses = [NSMutableArray arrayWithCapacity:2];[addresses addObject:address4];[addresses addObject:address6];}else{NSString *portStr = [NSString stringWithFormat:@"%hu", port];struct addrinfo hints, *res, *res0;memset(&hints, 0, sizeof(hints));hints.ai_family   = PF_UNSPEC;hints.ai_socktype = SOCK_STREAM;hints.ai_protocol = IPPROTO_TCP;int gai_error = getaddrinfo([host UTF8String], [portStr UTF8String], &hints, &res0);if (gai_error){error = [self gaiError:gai_error];}else{NSUInteger capacity = 0;for (res = res0; res; res = res->ai_next){if (res->ai_family == AF_INET || res->ai_family == AF_INET6) {capacity++;}}addresses = [NSMutableArray arrayWithCapacity:capacity];            for (res = res0; res; res = res->ai_next)            {                if (res->ai_family == AF_INET)                {                    // Found IPv4 address.                    // Wrap the native address structure, and add to results.                                        if (((struct sockaddr_in *)res->ai_addr)->sin_port == 0)                        ((struct sockaddr_in *)res->ai_addr)->sin_port = htons(port);                    NSData *address4 = [NSData dataWithBytes:res->ai_addr length:res->ai_addrlen];                    [addresses addObject:address4];                }                else if (res->ai_family == AF_INET6)                {                    // Found IPv6 address.                    // Wrap the native address structure, and add to results.                                        struct sockaddr_in6 *sockaddr = (struct sockaddr_in6 *)res->ai_addr;                    sockaddr->sin6_port = htons(port);                                        NSData *address6 = [NSData dataWithBytes:res->ai_addr length:res->ai_addrlen];                    [addresses addObject:address6];                    //                    if (((struct sockaddr_in6 *)res->ai_addr)->sin6_port == 0)//                        ((struct sockaddr_in6 *)res->ai_addr)->sin6_port = htons(port);//                    NSData *address6 = [NSData dataWithBytes:res->ai_addr length:res->ai_addrlen];//                    [addresses addObject:address6];                }            }freeaddrinfo(res0);if ([addresses count] == 0){error = [self gaiError:EAI_FAIL];}}}if (errPtr) *errPtr = error;return addresses;}