通过网卡远程开启ＰＣ

来源：互联网发布：全民飞机大战冲刺算法编辑：程序博客网时间：2024/06/06 05:12

以下是代码实现部分，部分功能函数没有给出，可以自己实现。

一:总的说来，读取配置　．ｐｃｌｉｓｔ　获取ｍａｃ地址。

内容格式如下：　

ｍａｃaddr pc_name

6c:0b:84:68:17:10 ubuntu3

二：获取ｓｏｃｋｅｔ并设置它的属性

三：设置并发送ｍａｇｉｃ包

备注：运行这个程序后，可能ＰＣ会堵塞，原因是要设置ＰＣ的ＢＩＯＳ使其支持通过网卡启动ＰＣ。

int main(int argc, char *argv[]){
   int status = 0;
   FILE *list;
   int sockfd;
   char magic[BUFMAX];
        struct sockaddr_in sin;
       unsigned char mac[MACLEN];
   char defpath[128];
   char line[128], *entry;
   int i;
   if (argc == 1) {
       sprintf(defpath, "%s/%s", getenv("HOME"), ".pclist");
           list = fopen(defpath, "r");
       if (NULL == list)
       {
           fprintf(stderr, "failed to read ~/.pclist, error(%d)\n", errno);
           return -1;
       }
       while (NULL != fgets(line, sizeof(line), list))
         {
              /* skip over leading whitespace */
              entry = skip_whitespace(line);
            /* ignore blank/comment line */

　 if (*entry == '\n' || *entry == '#')

　　　　continue;

         　   /* pick up the mac address */
         　   parse_mac_address(entry, &mac[0]);
          　    fclose(list);
             　 goto do_wake;
          }
          fclose(list);
       fprintf(stderr, "failed to read entry in .pclist\n");
       return -1;
   } else if (argc == 2) {
       parse_mac_address(argv[1], &mac[0]);
   } else {
       fprintf(stderr, "%s", help);
       return 0;
   }
   do_wake:
   printf("Waking up personal computer, MAC address "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
   /* * create magic packet<br>   */
   int size = 6;
   memset(magic, 0xFF, 6);
   for (i = 0; i < 16; i++)
   {
       memcpy(magic + size, mac, 6);
       size += 6;
   }
   /*    * create socket   */
        bzero((char *)&sin, sizeof(sin));
        sin.sin_family = AF_INET;
        sin.sin_port = htons(9);
   sin.sin_addr.s_addr = htonl(INADDR_BROADCAST);
   if ((sockfd = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)) == -1)
   {
       fprintf(stderr, "failed to get socket, error(%d)\n", errno);
           status = -1;
           goto out;
   }
       int optval = 1;
       if (setsockopt(sockfd, SOL_SOCKET, SO_BROADCAST, &optval, sizeof(optval)) == -1)
       {
          fprintf(stderr, "failed to set sockopt, error(%d)\n", errno);
          status = -2;
          goto out;
       }
   /*    * wake pc up   */
      if (sendto(sockfd, magic, size, 0, (struct sockaddr*)&sin, sizeof(sin)) == -1)
      {
         fprintf(stderr, "failed to send Magic packet, error(%d)\n", errno);
   status = -3;
      }
      out:
   close(sockfd);
   return status;
}

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