局域网远程唤醒Wakeup On LAN

// 局域网远程唤醒Wakeup On LAN) — 发送一个Magic Packet到某个MAC地址
// Magic Packet：UDP广播包，端口不限，数据是FF-FF-FF-FF-FF-FF加16个MAC
// 编译：cl sendmagic.cpp ws2_32.lib

#include <windows.h>
#include <stdio.h>

int mainint argc, char *argv[])
{
 //检查命令行参数
 ifargc!=2)
 {
  printf"Wakeup your PC on LAN! by CJ<4uto@163.com>/n");
  printf"Usage: %s <MAC address>/n", argv[0]);
  printf"Example: %s 00-D0-4C-BF-52-BA", argv[0]);
  return 0;
 }

 //检查MAC地址是否正确
 for char * a=argv[1]; *a; a++)
  if *a!='-' && !isxdigit*a))
  {
   fprintfstderr, "MAC Adresse must be like this: 00-D0-4C-BF-52-BA");
   return 1;
  }

 int dstaddr[6];
 int i=sscanfargv[1], "%2x-%2x-%2x-%2x-%2x-%2x",
                &dstaddr[0], &dstaddr[1], &dstaddr[2], &dstaddr[3], &dstaddr[4], &dstaddr[5]);
 if i!=6)
 {
  fprintfstderr, "Invalid MAC Adresse!");
  return 1;
 }

 unsigned char ether_addr[6];
 for i=0; i<6; i++)
  ether_addr[i]=dstaddr[i];

 //构造Magic Packet
 u_char magicpacket[200];
 memsetmagicpacket, 0xff, 6);
 int packetsize=6;
 for i=0; i<16; i++)
 {
  memcpymagicpacket+packetsize, ether_addr, 6);
  packetsize+=6;
 }

 //启动WSA
 WSADATA WSAData;
 if WSAStartup MAKEWORD2, 0), &WSAData)!=0)
 {
  fprintfstderr, "WSAStartup failed: %d/n", GetLastError));
  return 1;
 }

 //创建socket
 SOCKET sock=socketAF_INET, SOCK_DGRAM, 0);
 if sock==INVALID_SOCKET)
 {
  fprintfstderr, "Socket create error: %d/n", GetLastError));
  return 1;
 }

 //设置为广播发送
 BOOL bOptVal=TRUE;
 int iOptLen=sizeofBOOL);
 if setsockoptsock, SOL_SOCKET, SO_BROADCAST, char*)&bOptVal, iOptLen)==SOCKET_ERROR)
 {
  fprintfstderr, "setsockopt error: %d/n", WSAGetLastError));
  closesocketsock);
  WSACleanup);
  return 1;
 }

 sockaddr_in to;
 to.sin_family=AF_INET;
 to.sin_port=htons0);
 to.sin_addr.s_addr=htonlINADDR_BROADCAST);

 //发送Magic Packet
 if sendtosock, const char *)magicpacket, packetsize, 0, const struct sockaddr *)&to, sizeofto))==SOCKET_ERROR)
  fprintfstderr, "Magic packet send error: %d", WSAGetLastError));
 else
  printf"Magic packet send!");

 closesocketsock);
 WSACleanup);
 return 0;
}

转载于:https://my.oschina.net/XTechFly/blog/639640