如何通过C语言获取主机WLAN下的IPv4地址,MAC地址

 #include "stdio.h"
 #include "windows.h"

 void GetHostWLAN_IPv4_AND_MAC(char IPv4[], char MAC[]); //获取WLAN下的IPv4和MAC地址,局域网网关IPv4地址(基于win10中文版编写)

 int main()
 {
     char IPv4[] = {  };
     char MAC[] = {  };
     GetHostWLAN_IPv4_AND_MAC(IPv4,MAC);
          printf("%s %d\n", IPv4, strlen(IPv4));
     printf("%s %d\n", MAC, strlen(MAC));
     return ;
 }

 void GetHostWLAN_IPv4_AND_MAC(char IPv4[],char MAC[])
 {
     memset(IPv4, , sizeof(IPv4));
     memset(MAC, , sizeof(MAC));
     system("ipconfig/all > E:\\ipconfig.txt");
     FILE *fp = fopen("E:\\ipconfig.txt", "r");
     if (!fp)
     {
         printf("failed to open file!");
         exit(-);
     }
     char strInfo[] = {  };
     bool find_wlan = false;
     bool find_mac = false;
     bool find_ipv4 = false;
          int i, pos;
     while (fgets(strInfo, , fp) != NULL)
     {
         if (strstr(strInfo, "WLAN") != NULL)
             find_wlan = true;

         if (find_wlan)
         {
             if (strstr(strInfo, "物理地址") != NULL) //获取MAC地址
             {
                 pos = ;
                 for (i = strlen(strInfo);; i--)
                 {
                     if (strInfo[i - ] != '\0'&&pos >= )
                     {
                         if (strInfo[i - ] != '-')
                             MAC[pos--] = strInfo[i - ];
                         else
                             MAC[pos--] = ':';
                     }
                     else
                     {
                         find_mac = true;
                         break;
                     }
                 }
             }

             if (strstr(strInfo, "IPv4") != NULL) //获取IPv4地址
             {
                 for (i = ;; i++)
                 {
                     if (strInfo[i] == ':')
                         break;
                 }
                 pos = i+;
                 for (i=;; i++,pos++)
                 {
                     if (strInfo[pos] != '\0'&&strInfo[pos] != '(')
                         IPv4[i] = strInfo[pos];
                     else
                     {
                         find_ipv4 = true;
                         break;
                     }
                 }
             }

         }
         if (find_mac && find_ipv4 && find_gateway)
             break;
         memset(strInfo, , );
     }
 }