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96 |
#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"
#pragma mark-Get the device's current network IP address
+ (NSString *) getipaddress: (BOOL) preferIPv4
{
Nsarray *searcharray = preferIPv4?
@[Ios_vpn @ "/" Ip_addr_ipv4, Ios_vpn @ "/" Ip_addr_ipv6, Ios_wifi @ "/" Ip_addr_ipv4, Ios_wifi @ "/" Ip_addr_ipv6, IOS_CELLU LAR @ "/" 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_CELLU LAR @ "/" 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];
Filter out IP address formats
if ([self isvalidatip:address]) *stop = YES;
} ];
Return address? Address: @ "0.0.0.0";
}
+ (BOOL) Isvalidatip: (NSString *) ipAddress {
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]) \ \. "
"([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];
Output results
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;
} |
