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  • ios下获取mac地址修正版

    #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, 6NULL, &len, NULL0) < 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, NULL0) < 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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  • 原文地址:https://www.cnblogs.com/xuvw/p/2823430.html
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