Lunikism

// http://sourceforge.net/projects/wakeonlan/
// WakeOnLan - commandline application to start computers via wake on lan enbaled
// network interface card.
// Author: erik.tornstam@home.se
// Copyright: erik.tornstam@home.se

#include "stdio.h"
#include "iostream.h"
#include "winsock2.h"

#define DEFAULT_BROADCAST "255.255.255.255"
#define DEFAULT_PORT 32767

parse_mac(unsigned char *mac, char *str)
{
    int i;
    int count;
    char c;
    unsigned char val;
    int separator_ok = 1;

    for (i = 0; i < 6; i++) {
  mac[i] = 0;
    }

    for (i = 0; i < 6; i++) {
  count = 0;
  val   = 0;
  do {
   c = toupper(*str++);
   if (c >= '0' && c <= '9')
   {
    val = (val * 16) + (c - '0');
   }
   else if (c >= 'A' && c <= 'F')
   {
    val = (val * 16) + (c - 'A') + 10;
   }
   else if (c == '-' || c == ':')
   {
   if (separator_ok || count-- != 0)
    break;
   }
   else if (c == '\0')
   {
    str--;
    break;
   }
   else
   {
    return 0;
   }
   separator_ok=1;
  } while (++count < 2);

  separator_ok=(count<2);
  *mac++ = val;
    }

    if (*str)
  return 0;

    return 1;
}

int wakeup(char * sMacAddr, char * sBroadcast, int iPort)
{
 WSADATA wsaData;
 int   s;
 struct sockaddr_in bcast;
 char msg[1024];
    int  msglen = 0;
 unsigned char macaddr[6];

 if (! parse_mac(macaddr, sMacAddr) )
 {
  cerr << "Illegal MAC address" << endl;
  return -1;
    }

 for (int i = 0; i < 6; i++) {
  msg[msglen++] = (char)0xff;
    }

    for (i = 0; i < 16; i++) {
  for (int j = 0; j < sizeof(macaddr); j++) {
   msg[msglen++] = macaddr[j];
  }
    }

 if (!WSAStartup(MAKEWORD(1, 1), &wsaData))
 {
  if ((s = socket(AF_INET, SOCK_DGRAM, 0)) != INVALID_SOCKET)
  { 
   memset((char *)&bcast,0,sizeof(bcast));
   bcast.sin_family=AF_INET;
   bcast.sin_addr.s_addr=inet_addr(sBroadcast);
   bcast.sin_port=htons(iPort);

   if ( connect(s,(struct sockaddr *)&bcast,16)== -1)
   {
    cerr << "Cannot connect socket" << endl;
    return -2;
   }

   sendto(s, (const char *)&msg, msglen, 0, (struct sockaddr *)&bcast, sizeof(bcast));
   closesocket(s);
  }
  else
  {
   cerr << "Error getting socket" << endl;
  }

  WSACleanup();
  return(0);
 }
 else
  return -3;
}

void printHelp(char * argv[])
{
 cout << "WakeOnLan (c) erik.tornstam@home.se" << endl;
 cout << "Sends a WakeOnLan packet to a network." << endl << endl;
 cout << "Usage: " << argv[0] << " -a macaddress [-b broadcast address] [-p port] " << endl << endl;
 cout << "\t-a\tMAC-address of NIC to wake.  (00-04-00-c8-85-2d)" << endl;
 cout << "\t-b\tBroadcast address, default address is " << DEFAULT_BROADCAST << endl;
 cout << "\t-p\tPort number, default port is " << DEFAULT_PORT << endl;
}

int main(int argc, char* argv[])
{
 char macaddress[20] = "";
 char broadcast[20] = DEFAULT_BROADCAST;
 int port = DEFAULT_PORT;
 int argcnt=0;

 for(int c=1; c
 {
  if(stricmp("-a",argv[c])==0 && (argc > c+1) && argv[c+1][0]!='-')
  {
   strcpy(macaddress,argv[c+1]);
   argcnt++;
  }
  if(stricmp("-b",argv[c])==0 && (argc > c+1) && argv[c+1][0]!='-')
  {
   strcpy(broadcast,argv[c+1]);
   argcnt++;
  }
  if(stricmp("-p",argv[c])==0 && (argc > c+1) && argv[c+1][0]!='-')
  {
   port=atoi(argv[c+1]);
   argcnt++;
  }
 }

 if(argcnt < 1 || strcmp(macaddress,"")==0)
 {
  printHelp(argv);
  return -1;
 }
 cout << "Wakeupcall to " << macaddress << " broadcast over " << broadcast << " on port " << port << endl;
 wakeup(macaddress, broadcast, port);

 return 0;
}

출처 : http://visitagain.tistory.com/tag/WOL
VS2005 C++로 컴파일 해봤음, 오류남. ..

Magic Packet
I'm not sure, but it seems that the name comes from AMD. I did not do a search but Jos� Pedro Oliveira (second link above) says that there is more documentation about the protocol in their web site. As I mentioned above, you need to send a special packet in your LAN network, so that the remote computer will receive it and wake up. This so-called Magic packet consists of the following parts:

1.6 Bytes Header which is nothing but 6 bytes of 0xff.
2.16*6 Bytes Data. To produce data you'll need to repeat remote computers MAC (Media Access Control) Address 16 times. Look at the below figure:
 

Magic Packet(With Secure On Password)
(This part added on an update on: 2005/09/03. Note that 'PowerOn' sample has been updated in all downloads either. [as well as executables!])

Some clients require a password in the packet to be turned on, otherwise they simply won't! This password is also known as SecureOn, and will be attached at the end of the packet. In this case, a packet will look something like this:

So we have six cells, each capable of saving an integer number between 0 and 255(Just like MAC bytes).

• 컨트롤 컴포넌트
• 레이아웃 컨테이너 컴포넌트
• 네비게이터 컴포넌트
• 커스텀 컴포넌트
• 차트 컴포넌트

• <mx:Script>
• <mx:Model>
• <mx:XML>
• <mx:Array>