iOS中如何获取设备的全部ip地址，包括内网、外网、ipv4和ipv6地址

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<span class="token comment">//</span>
<span class="token comment">//  ZBTool.h</span>
<span class="token comment">//  HTTPTransfer</span>
<span class="token comment">//</span>
<span class="token comment">//  Created by 柏超曾 on 2017/8/28.</span>
<span class="token comment">//  Copyright © 2017年 柏超曾. All rights reserved.</span>
<span class="token comment">//</span>

#<span class="token keyword">import</span> <span class="token operator">&lt;</span>Foundation<span class="token operator">/</span>Foundation<span class="token punctuation">.</span>h<span class="token operator">&gt;</span>

@<span class="token keyword">interface</span> <span class="token class-name">ZBTool</span> <span class="token punctuation">:</span> NSObject

<span class="token operator">+</span> <span class="token punctuation">(</span>NSString <span class="token operator">*</span><span class="token punctuation">)</span>getIPAddress<span class="token punctuation">:</span><span class="token punctuation">(</span><span class="token constant">BOOL</span><span class="token punctuation">)</span>preferIPv4<span class="token punctuation">;</span>

<span class="token operator">+</span> <span class="token punctuation">(</span><span class="token constant">BOOL</span><span class="token punctuation">)</span>isValidatIP<span class="token punctuation">:</span><span class="token punctuation">(</span>NSString <span class="token operator">*</span><span class="token punctuation">)</span>ipAddress <span class="token punctuation">;</span>

<span class="token operator">+</span> <span class="token punctuation">(</span>NSDictionary <span class="token operator">*</span><span class="token punctuation">)</span>getIPAddresses<span class="token punctuation">;</span>
@end

//

// ZBTool.h

// HTTPTransfer

//

// Created by 柏超曾 on 2017/8/28.

//

#import <Foundation/Foundation.h>

@interface ZBTool : NSObject

+ (NSString *)getIPAddress:(BOOL)preferIPv4;

+ (BOOL)isValidatIP:(NSString *)ipAddress ;

+ (NSDictionary *)getIPAddresses;

@end


<span class="token comment">//</span>
<span class="token comment">//  ZBTool.m</span>
<span class="token comment">//  HTTPTransfer</span>
<span class="token comment">//</span>
<span class="token comment">//  Created by 柏超曾 on 2017/8/28.</span>
<span class="token comment">//  Copyright © 2017年 柏超曾. All rights reserved.</span>
<span class="token comment">//</span>

#<span class="token keyword">import</span> <span class="token string">"ZBTool.h"</span>
#<span class="token keyword">import</span> <span class="token operator">&lt;</span>ifaddrs<span class="token punctuation">.</span>h<span class="token operator">&gt;</span>
#<span class="token keyword">import</span> <span class="token operator">&lt;</span>arpa<span class="token operator">/</span>inet<span class="token punctuation">.</span>h<span class="token operator">&gt;</span>
#<span class="token keyword">import</span> <span class="token operator">&lt;</span>net<span class="token operator">/</span><span class="token keyword">if</span><span class="token punctuation">.</span>h<span class="token operator">&gt;</span>

#define <span class="token constant">IOS_CELLULAR</span>    @<span class="token string">"pdp_ip0"</span>
#define <span class="token constant">IOS_WIFI</span>        @<span class="token string">"en0"</span>
#define <span class="token constant">IOS_VPN</span>         @<span class="token string">"utun0"</span>
#define IP_ADDR_IPv4    @<span class="token string">"ipv4"</span>
#define IP_ADDR_IPv6    @<span class="token string">"ipv6"</span>


@implementation ZBTool
#pragma mark <span class="token operator">-</span> 获取设备当前网络<span class="token constant">IP</span>地址
<span class="token operator">+</span> <span class="token punctuation">(</span>NSString <span class="token operator">*</span><span class="token punctuation">)</span>getIPAddress<span class="token punctuation">:</span><span class="token punctuation">(</span><span class="token constant">BOOL</span><span class="token punctuation">)</span>preferIPv4
<span class="token punctuation">{</span>
    NSArray <span class="token operator">*</span>searchArray <span class="token operator">=</span> preferIPv4 <span class="token operator">?</span>
    @<span class="token punctuation">[</span> <span class="token constant">IOS_VPN</span> @<span class="token string">"/"</span> IP_ADDR_IPv4<span class="token punctuation">,</span> <span class="token constant">IOS_VPN</span> @<span class="token string">"/"</span> IP_ADDR_IPv6<span class="token punctuation">,</span> <span class="token constant">IOS_WIFI</span> @<span class="token string">"/"</span> IP_ADDR_IPv4<span class="token punctuation">,</span> <span class="token constant">IOS_WIFI</span> @<span class="token string">"/"</span> IP_ADDR_IPv6<span class="token punctuation">,</span> <span class="token constant">IOS_CELLULAR</span> @<span class="token string">"/"</span> IP_ADDR_IPv4<span class="token punctuation">,</span> <span class="token constant">IOS_CELLULAR</span> @<span class="token string">"/"</span> IP_ADDR_IPv6 <span class="token punctuation">]</span> <span class="token punctuation">:</span>
    @<span class="token punctuation">[</span> <span class="token constant">IOS_VPN</span> @<span class="token string">"/"</span> IP_ADDR_IPv6<span class="token punctuation">,</span> <span class="token constant">IOS_VPN</span> @<span class="token string">"/"</span> IP_ADDR_IPv4<span class="token punctuation">,</span> <span class="token constant">IOS_WIFI</span> @<span class="token string">"/"</span> IP_ADDR_IPv6<span class="token punctuation">,</span> <span class="token constant">IOS_WIFI</span> @<span class="token string">"/"</span> IP_ADDR_IPv4<span class="token punctuation">,</span> <span class="token constant">IOS_CELLULAR</span> @<span class="token string">"/"</span> IP_ADDR_IPv6<span class="token punctuation">,</span> <span class="token constant">IOS_CELLULAR</span> @<span class="token string">"/"</span> IP_ADDR_IPv4 <span class="token punctuation">]</span> <span class="token punctuation">;</span>
    
    NSDictionary <span class="token operator">*</span>addresses <span class="token operator">=</span> <span class="token punctuation">[</span>self getIPAddresses<span class="token punctuation">]</span><span class="token punctuation">;</span>
    <span class="token function">NSLog</span><span class="token punctuation">(</span>@<span class="token string">"addresses: %@"</span><span class="token punctuation">,</span> addresses<span class="token punctuation">)</span><span class="token punctuation">;</span>
    
    __block NSString <span class="token operator">*</span>address<span class="token punctuation">;</span>
    <span class="token punctuation">[</span>searchArray enumerateObjectsUsingBlock<span class="token punctuation">:</span><span class="token operator">^</span><span class="token punctuation">(</span>NSString <span class="token operator">*</span>key<span class="token punctuation">,</span> NSUInteger idx<span class="token punctuation">,</span> <span class="token constant">BOOL</span> <span class="token operator">*</span>stop<span class="token punctuation">)</span>
     <span class="token punctuation">{</span>
         address <span class="token operator">=</span> addresses<span class="token punctuation">[</span>key<span class="token punctuation">]</span><span class="token punctuation">;</span>
         <span class="token comment">//筛选出IP地址格式</span>
         <span class="token keyword">if</span><span class="token punctuation">(</span><span class="token punctuation">[</span>self isValidatIP<span class="token punctuation">:</span>address<span class="token punctuation">]</span><span class="token punctuation">)</span> <span class="token operator">*</span>stop <span class="token operator">=</span> <span class="token constant">YES</span><span class="token punctuation">;</span>
     <span class="token punctuation">}</span> <span class="token punctuation">]</span><span class="token punctuation">;</span>
    <span class="token keyword">return</span> address <span class="token operator">?</span> address <span class="token punctuation">:</span> @<span class="token string">"0.0.0.0"</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>

<span class="token operator">+</span> <span class="token punctuation">(</span><span class="token constant">BOOL</span><span class="token punctuation">)</span>isValidatIP<span class="token punctuation">:</span><span class="token punctuation">(</span>NSString <span class="token operator">*</span><span class="token punctuation">)</span>ipAddress <span class="token punctuation">{</span>
    <span class="token keyword">if</span> <span class="token punctuation">(</span>ipAddress<span class="token punctuation">.</span>length <span class="token operator">==</span> <span class="token number">0</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
        <span class="token keyword">return</span> <span class="token constant">NO</span><span class="token punctuation">;</span>
    <span class="token punctuation">}</span>
    NSString <span class="token operator">*</span>urlRegEx <span class="token operator">=</span> @<span class="token string">"^([01]?\\d\\d?|2[0-4]\\d|25[0-5])\\."</span>
    <span class="token string">"([01]?\\d\\d?|2[0-4]\\d|25[0-5])\\."</span>
    <span class="token string">"([01]?\\d\\d?|2[0-4]\\d|25[0-5])\\."</span>
    <span class="token string">"([01]?\\d\\d?|2[0-4]\\d|25[0-5])$"</span><span class="token punctuation">;</span>
    
    NSError <span class="token operator">*</span>error<span class="token punctuation">;</span>
    NSRegularExpression <span class="token operator">*</span>regex <span class="token operator">=</span> <span class="token punctuation">[</span>NSRegularExpression regularExpressionWithPattern<span class="token punctuation">:</span>urlRegEx options<span class="token punctuation">:</span><span class="token number">0</span> error<span class="token punctuation">:</span><span class="token operator">&amp;</span>error<span class="token punctuation">]</span><span class="token punctuation">;</span>
    
    <span class="token keyword">if</span> <span class="token punctuation">(</span>regex <span class="token operator">!=</span> nil<span class="token punctuation">)</span> <span class="token punctuation">{</span>
        NSTextCheckingResult <span class="token operator">*</span>firstMatch<span class="token operator">=</span><span class="token punctuation">[</span>regex firstMatchInString<span class="token punctuation">:</span>ipAddress options<span class="token punctuation">:</span><span class="token number">0</span> range<span class="token punctuation">:</span><span class="token function">NSMakeRange</span><span class="token punctuation">(</span><span class="token number">0</span><span class="token punctuation">,</span> <span class="token punctuation">[</span>ipAddress length<span class="token punctuation">]</span><span class="token punctuation">)</span><span class="token punctuation">]</span><span class="token punctuation">;</span>
        
        <span class="token keyword">if</span> <span class="token punctuation">(</span>firstMatch<span class="token punctuation">)</span> <span class="token punctuation">{</span>
            NSRange resultRange <span class="token operator">=</span> <span class="token punctuation">[</span>firstMatch rangeAtIndex<span class="token punctuation">:</span><span class="token number">0</span><span class="token punctuation">]</span><span class="token punctuation">;</span>
            NSString <span class="token operator">*</span>result<span class="token operator">=</span><span class="token punctuation">[</span>ipAddress substringWithRange<span class="token punctuation">:</span>resultRange<span class="token punctuation">]</span><span class="token punctuation">;</span>
            <span class="token comment">//输出结果</span>
            <span class="token function">NSLog</span><span class="token punctuation">(</span>@<span class="token string">"%@"</span><span class="token punctuation">,</span>result<span class="token punctuation">)</span><span class="token punctuation">;</span>
            <span class="token keyword">return</span> <span class="token constant">YES</span><span class="token punctuation">;</span>
        <span class="token punctuation">}</span>
    <span class="token punctuation">}</span>
    <span class="token keyword">return</span> <span class="token constant">NO</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>

<span class="token operator">+</span> <span class="token punctuation">(</span>NSDictionary <span class="token operator">*</span><span class="token punctuation">)</span>getIPAddresses
<span class="token punctuation">{</span>
    NSMutableDictionary <span class="token operator">*</span>addresses <span class="token operator">=</span> <span class="token punctuation">[</span>NSMutableDictionary dictionaryWithCapacity<span class="token punctuation">:</span><span class="token number">8</span><span class="token punctuation">]</span><span class="token punctuation">;</span>
    
    <span class="token comment">// retrieve the current interfaces - returns 0 on success</span>
    struct ifaddrs <span class="token operator">*</span>interfaces<span class="token punctuation">;</span>
    <span class="token keyword">if</span><span class="token punctuation">(</span><span class="token operator">!</span><span class="token function">getifaddrs</span><span class="token punctuation">(</span><span class="token operator">&amp;</span>interfaces<span class="token punctuation">)</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
        <span class="token comment">// Loop through linked list of interfaces</span>
        struct ifaddrs <span class="token operator">*</span><span class="token keyword">interface</span><span class="token punctuation">;</span>
        <span class="token keyword">for</span><span class="token punctuation">(</span><span class="token keyword">interface</span><span class="token operator">=</span>interfaces<span class="token punctuation">;</span> <span class="token keyword">interface</span><span class="token punctuation">;</span> <span class="token keyword">interface</span><span class="token operator">=</span><span class="token keyword">interface</span><span class="token operator">-</span><span class="token operator">&gt;</span>ifa_next<span class="token punctuation">)</span> <span class="token punctuation">{</span>
            <span class="token keyword">if</span><span class="token punctuation">(</span><span class="token operator">!</span><span class="token punctuation">(</span><span class="token keyword">interface</span><span class="token operator">-</span><span class="token operator">&gt;</span>ifa_flags <span class="token operator">&amp;</span> <span class="token constant">IFF_UP</span><span class="token punctuation">)</span> <span class="token comment">/* || (interface-&gt;ifa_flags &amp; IFF_LOOPBACK) */</span> <span class="token punctuation">)</span> <span class="token punctuation">{</span>
                <span class="token keyword">continue</span><span class="token punctuation">;</span> <span class="token comment">// deeply nested code harder to read</span>
            <span class="token punctuation">}</span>
            <span class="token keyword">const</span> struct sockaddr_in <span class="token operator">*</span>addr <span class="token operator">=</span> <span class="token punctuation">(</span><span class="token keyword">const</span> struct sockaddr_in<span class="token operator">*</span><span class="token punctuation">)</span><span class="token keyword">interface</span><span class="token operator">-</span><span class="token operator">&gt;</span>ifa_addr<span class="token punctuation">;</span>
            char addrBuf<span class="token punctuation">[</span> <span class="token constant">MAX</span><span class="token punctuation">(</span><span class="token constant">INET_ADDRSTRLEN</span><span class="token punctuation">,</span> <span class="token constant">INET6_ADDRSTRLEN</span><span class="token punctuation">)</span> <span class="token punctuation">]</span><span class="token punctuation">;</span>
            <span class="token keyword">if</span><span class="token punctuation">(</span>addr <span class="token operator">&amp;&amp;</span> <span class="token punctuation">(</span>addr<span class="token operator">-</span><span class="token operator">&gt;</span>sin_family<span class="token operator">==</span><span class="token constant">AF_INET</span> <span class="token operator">||</span> addr<span class="token operator">-</span><span class="token operator">&gt;</span>sin_family<span class="token operator">==</span><span class="token constant">AF_INET6</span><span class="token punctuation">)</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
                NSString <span class="token operator">*</span>name <span class="token operator">=</span> <span class="token punctuation">[</span>NSString stringWithUTF8String<span class="token punctuation">:</span><span class="token keyword">interface</span><span class="token operator">-</span><span class="token operator">&gt;</span>ifa_name<span class="token punctuation">]</span><span class="token punctuation">;</span>
                NSString <span class="token operator">*</span>type<span class="token punctuation">;</span>
                <span class="token keyword">if</span><span class="token punctuation">(</span>addr<span class="token operator">-</span><span class="token operator">&gt;</span>sin_family <span class="token operator">==</span> <span class="token constant">AF_INET</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
                    <span class="token keyword">if</span><span class="token punctuation">(</span><span class="token function">inet_ntop</span><span class="token punctuation">(</span><span class="token constant">AF_INET</span><span class="token punctuation">,</span> <span class="token operator">&amp;</span>addr<span class="token operator">-</span><span class="token operator">&gt;</span>sin_addr<span class="token punctuation">,</span> addrBuf<span class="token punctuation">,</span> <span class="token constant">INET_ADDRSTRLEN</span><span class="token punctuation">)</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
                        type <span class="token operator">=</span> IP_ADDR_IPv4<span class="token punctuation">;</span>
                    <span class="token punctuation">}</span>
                <span class="token punctuation">}</span> <span class="token keyword">else</span> <span class="token punctuation">{</span>
                    <span class="token keyword">const</span> struct sockaddr_in6 <span class="token operator">*</span>addr6 <span class="token operator">=</span> <span class="token punctuation">(</span><span class="token keyword">const</span> struct sockaddr_in6<span class="token operator">*</span><span class="token punctuation">)</span><span class="token keyword">interface</span><span class="token operator">-</span><span class="token operator">&gt;</span>ifa_addr<span class="token punctuation">;</span>
                    <span class="token keyword">if</span><span class="token punctuation">(</span><span class="token function">inet_ntop</span><span class="token punctuation">(</span><span class="token constant">AF_INET6</span><span class="token punctuation">,</span> <span class="token operator">&amp;</span>addr6<span class="token operator">-</span><span class="token operator">&gt;</span>sin6_addr<span class="token punctuation">,</span> addrBuf<span class="token punctuation">,</span> <span class="token constant">INET6_ADDRSTRLEN</span><span class="token punctuation">)</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
                        type <span class="token operator">=</span> IP_ADDR_IPv6<span class="token punctuation">;</span>
                    <span class="token punctuation">}</span>
                <span class="token punctuation">}</span>
                <span class="token keyword">if</span><span class="token punctuation">(</span>type<span class="token punctuation">)</span> <span class="token punctuation">{</span>
                    NSString <span class="token operator">*</span>key <span class="token operator">=</span> <span class="token punctuation">[</span>NSString stringWithFormat<span class="token punctuation">:</span>@<span class="token string">"%@/%@"</span><span class="token punctuation">,</span> name<span class="token punctuation">,</span> type<span class="token punctuation">]</span><span class="token punctuation">;</span>
                    addresses<span class="token punctuation">[</span>key<span class="token punctuation">]</span> <span class="token operator">=</span> <span class="token punctuation">[</span>NSString stringWithUTF8String<span class="token punctuation">:</span>addrBuf<span class="token punctuation">]</span><span class="token punctuation">;</span>
                <span class="token punctuation">}</span>
            <span class="token punctuation">}</span>
        <span class="token punctuation">}</span>
        <span class="token comment">// Free memory</span>
        <span class="token function">freeifaddrs</span><span class="token punctuation">(</span>interfaces<span class="token punctuation">)</span><span class="token punctuation">;</span>
    <span class="token punctuation">}</span>
    <span class="token keyword">return</span> <span class="token punctuation">[</span>addresses count<span class="token punctuation">]</span> <span class="token operator">?</span> addresses <span class="token punctuation">:</span> nil<span class="token punctuation">;</span>
<span class="token punctuation">}</span>


@end

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//

// ZBTool.m

// HTTPTransfer

//

// Created by 柏超曾 on 2017/8/28.

//

#import "ZBTool.h"

#import <ifaddrs.h>

#import <arpa/inet.h>

#import <net/if.h>

#define IOS_CELLULAR @"pdp_ip0"

#define IOS_WIFI @"en0"

#define IOS_VPN @"utun0"

#define IP_ADDR_IPv4 @"ipv4"

#define IP_ADDR_IPv6 @"ipv6"

@implementation ZBTool

#pragma mark - 获取设备当前网络IP地址

{

NSArray *searchArray = preferIPv4 ?

@[ IOS_VPN @"/" IP_ADDR_IPv4, IOS_VPN @"/" IP_ADDR_IPv6, IOS_WIFI @"/" IP_ADDR_IPv4, IOS_WIFI @"/" IP_ADDR_IPv6, IOS_CELLULAR @"/" IP_ADDR_IPv4, IOS_CELLULAR @"/" IP_ADDR_IPv6 ] :

@[ IOS_VPN @"/" IP_ADDR_IPv6, IOS_VPN @"/" IP_ADDR_IPv4, IOS_WIFI @"/" IP_ADDR_IPv6, IOS_WIFI @"/" IP_ADDR_IPv4, IOS_CELLULAR @"/" IP_ADDR_IPv6, IOS_CELLULAR @"/" IP_ADDR_IPv4 ] ;

NSDictionary *addresses = [self getIPAddresses];

NSLog(@"addresses: %@", addresses);

__block NSString *address;

[searchArray enumerateObjectsUsingBlock:^(NSString *key, NSUInteger idx, BOOL *stop)

{

address = addresses[key];

//筛选出IP地址格式

if([self isValidatIP:address]) *stop = YES;

} ];

return address ? address : @"0.0.0.0";

}

if (ipAddress.length == 0) {

return NO;

}

NSString *urlRegEx = @"^([01]?\\d\\d?|2[0-4]\\d|25[0-5])\\."

"([01]?\\d\\d?|2[0-4]\\d|25[0-5])\\."

"([01]?\\d\\d?|2[0-4]\\d|25[0-5])$";

NSError *error;

NSRegularExpression *regex = [NSRegularExpression regularExpressionWithPattern:urlRegEx options:0 error:&error];

if (regex != nil) {

NSTextCheckingResult *firstMatch=[regex firstMatchInString:ipAddress options:0 range:NSMakeRange(0, [ipAddress length])];

if (firstMatch) {

NSRange resultRange = [firstMatch rangeAtIndex:0];

NSString *result=[ipAddress substringWithRange:resultRange];

//输出结果

NSLog(@"%@",result);

return YES;

}

return NO;

}

+ (NSDictionary *)getIPAddresses

{

NSMutableDictionary *addresses = [NSMutableDictionary dictionaryWithCapacity:8];

// retrieve the current interfaces - returns 0 on success

struct ifaddrs *interfaces;

if(!getifaddrs(&interfaces)) {

// Loop through linked list of interfaces

struct ifaddrs *interface;

for(interface=interfaces; interface; interface=interface->ifa_next) {

if(!(interface->ifa_flags & IFF_UP) /* || (interface->ifa_flags & IFF_LOOPBACK) */ ) {

continue; // deeply nested code harder to read

}

const struct sockaddr_in *addr = (const struct sockaddr_in*)interface->ifa_addr;

char addrBuf[ MAX(INET_ADDRSTRLEN, INET6_ADDRSTRLEN) ];

if(addr && (addr->sin_family==AF_INET || addr->sin_family==AF_INET6)) {

NSString *name = [NSString stringWithUTF8String:interface->ifa_name];

NSString *type;

if(addr->sin_family == AF_INET) {

if(inet_ntop(AF_INET, &addr->sin_addr, addrBuf, INET_ADDRSTRLEN)) {

type = IP_ADDR_IPv4;

}

} else {

const struct sockaddr_in6 *addr6 = (const struct sockaddr_in6*)interface->ifa_addr;

if(inet_ntop(AF_INET6, &addr6->sin6_addr, addrBuf, INET6_ADDRSTRLEN)) {

type = IP_ADDR_IPv6;

}

if(type) {

NSString *key = [NSString stringWithFormat:@"%@/%@", name, type];

addresses[key] = [NSString stringWithUTF8String:addrBuf];

}

// Free memory

freeifaddrs(interfaces);

}

return [addresses count] ? addresses : nil;

}

@end

作者：曾柏超
链接：https://www.jianshu.com/p/7872b43f0cc7
来源：简书
著作权归作者所有。商业转载请联系作者获得授权，非商业转载请注明出处。

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