转载自:http://blog.csdn.net/showhilllee/article/details/23756023
首先说明下,下面两种方法均可以获得手机的mac地址,但是有个限制,是在iOS一下才可以获得。iOS7以后苹果对于sysctl和ioctl进行了技术处理,MAC地址返回的都是02:00:00:00:00:00。官方文档上这样写的“Twolow-level networking APIs that used to return a MAC address now return thefixed
value 02:00:00:00:00:00. The APIs in question are sysctl(NET_RT_IFLIST) and ioctl(SIOCGIFCONF). Developers using the value of the MAC address should migrate toidentifiers such as -[UIDevice identifierForVendor].This change affects all apps running on iOS 7”。
所以在iOS7以后想要获取设备的唯一标示Mac地址已经不行了,只能用其他的代替。
下面说下两种方式:
都需要导入几个头文件
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#include <sys/sysctl.h>
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#include <net/if.h>
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#include <net/if_dl.h>
方法1:
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// Return the local MAC addy
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// Courtesy of FreeBSD hackers email list
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// Accidentally munged during previous update. Fixed thanks to mlamb.
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- (NSString *) macaddress
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{
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int mib[6];
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size_t len;
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char *buf;
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unsigned char *ptr;
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struct if_msghdr *ifm;
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struct sockaddr_dl *sdl;
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mib[0] = CTL_NET;
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mib[1] = AF_ROUTE;
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mib[2] = 0;
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mib[3] = AF_LINK;
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mib[4] = NET_RT_IFLIST;
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if ((mib[5] = if_nametoindex("en0")) == 0) {
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printf("Error: if_nametoindex error/n");
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return NULL;
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}
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if (sysctl(mib, 6, NULL, &len, NULL, 0) < 0) {
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printf("Error: sysctl, take 1/n");
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return NULL;
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}
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if ((buf = malloc(len)) == NULL) {
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printf("Could not allocate memory. error!/n");
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return NULL;
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}
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if (sysctl(mib, 6, buf, &len, NULL, 0) < 0) {
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printf("Error: sysctl, take 2");
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return NULL;
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}
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ifm = (struct if_msghdr *)buf;
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sdl = (struct sockaddr_dl *)(ifm + 1);
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ptr = (unsigned char *)LLADDR(sdl);
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NSString *outstring = [NSString stringWithFormat:@"%02x:%02x:%02x:%02x:%02x:%02x", *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4), *(ptr+5)];
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// NSString *outstring = [NSString stringWithFormat:@"%02x%02x%02x%02x%02x%02x", *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4), *(ptr+5)];
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NSLog(@"outString:%@", outstring);
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free(buf);
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return [outstring uppercaseString];
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}
源自http://blog.csdn.net/showhilllee
方法2:
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- (NSString *)getMacAddress
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{
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int mgmtInfoBase[6];
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char *msgBuffer = NULL;
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size_t length;
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unsigned char macAddress[6];
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struct if_msghdr *interfaceMsgStruct;
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struct sockaddr_dl *socketStruct;
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NSString *errorFlag = NULL;
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// Setup the management Information Base (mib)
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mgmtInfoBase[0] = CTL_NET; // Request network subsystem
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mgmtInfoBase[1] = AF_ROUTE; // Routing table info
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mgmtInfoBase[2] = 0;
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mgmtInfoBase[3] = AF_LINK; // Request link layer information
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mgmtInfoBase[4] = NET_RT_IFLIST; // Request all configured interfaces
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// With all configured interfaces requested, get handle index
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if ((mgmtInfoBase[5] = if_nametoindex("en0")) == 0)
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errorFlag = @"if_nametoindex failure";
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else
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{
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// Get the size of the data available (store in len)
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if (sysctl(mgmtInfoBase, 6, NULL, &length, NULL, 0) < 0)
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errorFlag = @"sysctl mgmtInfoBase failure";
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else
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{
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// Alloc memory based on above call
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if ((msgBuffer = malloc(length)) == NULL)
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errorFlag = @"buffer allocation failure";
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else
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{
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// Get system information, store in buffer
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if (sysctl(mgmtInfoBase, 6, msgBuffer, &length, NULL, 0) < 0)
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errorFlag = @"sysctl msgBuffer failure";
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}
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}
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}
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// Befor going any further...
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if (errorFlag != NULL)
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{
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NSLog(@"Error: %@", errorFlag);
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return errorFlag;
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}
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// Map msgbuffer to interface message structure
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interfaceMsgStruct = (struct if_msghdr *) msgBuffer;
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// Map to link-level socket structure
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socketStruct = (struct sockaddr_dl *) (interfaceMsgStruct + 1);
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// Copy link layer address data in socket structure to an array
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memcpy(&macAddress, socketStruct->sdl_data + socketStruct->sdl_nlen, 6);
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// Read from char array into a string object, into traditional Mac address format
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NSString *macAddressString = [NSString stringWithFormat:@"%02x:%02x:%02x:%02x:%02x:%02x",
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macAddress[0], macAddress[1], macAddress[2],
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macAddress[3], macAddress[4], macAddress[5]];
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NSLog(@"Mac Address: %@", macAddressString);
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// Release the buffer memory
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free(msgBuffer);
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return macAddressString;
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}
ios获取mac地址,布布扣,bubuko.com
ios获取mac地址
原文:http://blog.csdn.net/jijunyuan/article/details/25148903