获取ios的MAC地址

来源：互联网发布：linux文件权限管理编辑：程序博客网时间：2024/06/04 18:47
#include <sys/socket.h> // Per msqr#include <sys/sysctl.h>#include <net/if.h>#include <net/if_dl.h>#pragma mark MAC// Return the local MAC addy// Courtesy of FreeBSD hackers email list// Accidentally munged during previous update. Fixed thanks to mlamb.- (NSString *) macaddress{int                    mib[6];size_t                len;char                *buf;unsigned char        *ptr;struct if_msghdr    *ifm;struct sockaddr_dl    *sdl;mib[0] = CTL_NET;mib[1] = AF_ROUTE;mib[2] = 0;mib[3] = AF_LINK;mib[4] = NET_RT_IFLIST;if ((mib[5] = if_nametoindex("en0")) == 0) {printf("Error: if_nametoindex error/n");return NULL;}if (sysctl(mib, 6, NULL, &len, NULL, 0) < 0) {printf("Error: sysctl, take 1/n");return NULL;}if ((buf = malloc(len)) == NULL) {printf("Could not allocate memory. error!/n");return NULL;}if (sysctl(mib, 6, buf, &len, NULL, 0) < 0) {printf("Error: sysctl, take 2");return NULL;}ifm = (struct if_msghdr *)buf;sdl = (struct sockaddr_dl *)(ifm + 1);ptr = (unsigned char *)LLADDR(sdl);// NSString *outstring = [NSString stringWithFormat:@"%02x:%02x:%02x:%02x:%02x:%02x", *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4), *(ptr+5)];NSString *outstring = [NSString stringWithFormat:@"%02x%02x%02x%02x%02x%02x", *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4), *(ptr+5)];free(buf);return [outstring uppercaseString];}
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