如何使用vxWorks6.8 API实时获取MAC地址？

#include <vxWorks.h>
#include <sys/ioctl.h>
#include <net/if.h>
#include <netinet/in.h>
#include <string.h>

void getMacAddress()
{
    int sock;
    struct ifreq ifr;

    // 初始化网络设备
    sock = socket(AF_INET, SOCK_DGRAM, 0);
    if (sock < 0) {
        printf("Failed to initialize network device.\n");
        return;
    }

    // 获取网络设备列表
    struct ifconf ifc;
    char buf[1024];
    ifc.ifc_len = sizeof(buf);
    ifc.ifc_buf = buf;
    if (ioctl(sock, SIOCGIFCONF, &ifc) < 0) {
        printf("Failed to get network device list.\n");
        close(sock);
        return;
    }

    // 遍历网络设备列表
    struct ifreq* ifrList = (struct ifreq*)ifc.ifc_buf;
    int numInterfaces = ifc.ifc_len / sizeof(struct ifreq);
    for (int i = 0; i < numInterfaces; i++) {
        // 获取MAC地址
        strncpy(ifr.ifr_name, ifrList[i].ifr_name, IFNAMSIZ - 1);
        if (ioctl(sock, SIOCGIFHWADDR, &ifr) < 0) {
            printf("Failed to get MAC address for device %s.\n", ifr.ifr_name);
            continue;
        }

        // 打印MAC地址
        unsigned char* mac = (unsigned char*)ifr.ifr_hwaddr.sa_data;
        printf("MAC address for device %s: %02X:%02X:%02X:%02X:%02X:%02X\n",
               ifr.ifr_name, mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
    }

    close(sock);
}