// 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 main(int argc, char *argv[]){ //检查命令行参数 if(argc!=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)) { fprintf(stderr, "MAC Adresse must be like this: 00-D0-4C-BF-52-BA"); return 1; }
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int dstaddr[6]; int i=sscanf(argv[1], "%2x-%2x-%2x-%2x-%2x-%2x", &dstaddr[0], &dstaddr[1], &dstaddr[2], &dstaddr[3], &dstaddr[4], &dstaddr[5]); if (i!=6) { fprintf(stderr, "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]; memset(magicpacket, 0xff, 6); int packetsize=6; for (i=0; i<16; i ) { memcpy(magicpacket packetsize, ether_addr, 6); packetsize =6; }
//启动WSA WSADATA WSAData; if (WSAStartup( MAKEWORD(2, 0), &WSAData)!=0) { fprintf(stderr, "WSAStartup failed: %d\n", GetLastError()); return 1; }
//创建socket SOCKET sock=socket(AF_INET, SOCK_DGRAM, 0); if (sock==INVALID_SOCKET) { fprintf(stderr, "Socket create error: %d\n", GetLastError()); return 1; }
//设置为广播发送 BOOL bOptVal=TRUE; int iOptLen=sizeof(BOOL); if (setsockopt(sock, SOL_SOCKET, SO_BROADCAST, (char*)&bOptVal, iOptLen)==SOCKET_ERROR) { fprintf(stderr, "setsockopt error: %d\n", WSAGetLastError()); closesocket(sock); WSACleanup(); return 1; }
sockaddr_in to; to.sin_family=AF_INET; to.sin_port=htons(0); to.sin_addr.s_addr=htonl(INADDR_BROADCAST);
//发送Magic Packet if (sendto(sock, (const char *)magicpacket, packetsize, 0, (const struct sockaddr *)&to, sizeof(to))==SOCKET_ERROR) fprintf(stderr, "Magic packet send error: %d", WSAGetLastError()); else printf("Magic packet send!");
closesocket(sock); WSACleanup(); return 0;}
