WoL.zip_UP_wol

#include <windows.h> #include <stdio.h> int main(int argc, char *argv[]) { int i; //index for for loop //check validaty of input if( 2 != argc) { printf("Usage: %s <MAC ADDRESS>\n\nFor Example: %s 00-11-22-33-44-55\n", argv[0], argv[0]); return 1; } int iLen = strlen(argv[1]); if( 17 != iLen ) //include 5 '-' { printf("Length of MAC ADDRESS error, it should be 17 hex digits but got: %d\n", iLen); return 2; } for( char *c = argv[1]; *c; c++ ) { if( '-' != *c && !isxdigit(*c) ) { printf("Invalid MAC address got, it should be consisted of hex digits and '-'\n"); return 3; } } int iDstAddr[6]; i = sscanf(argv[1], "%2x-%2x-%2x-%2x-%2x-%2x", &iDstAddr[0], &iDstAddr[1], &iDstAddr[2], &iDstAddr[3], &iDstAddr[4], &iDstAddr[5]); if( 6 != i ) { printf("Invalid MAC Address!\n"); return 4; } unsigned char ucEthAddr[7]; for( i = 0; i < 6; i++ ) ucEthAddr[i] = iDstAddr[i]; ucEthAddr[6] = '\0'; //construct Magic Packet u_char ucMagicPacket[256]; int iPacketSize = 6; memset(ucMagicPacket, '\0', sizeof(ucMagicPacket)); memset(ucMagicPacket, 0xff, iPacketSize); for( i = 0; i < 16; i++ ) { memcpy(ucMagicPacket + iPacketSize, ucEthAddr, 6); iPacketSize += 6; } //start WSA WSADATA WSAData; if( 0 != WSAStartup(MAKEWORD(2,0), &WSAData) ) { printf("WSAStartup Failed: %d\n", GetLastError()); return 5; } //create socket SOCKET sock = socket(AF_INET, SOCK_DGRAM, 0); if( INVALID_SOCKET == sock ) { printf("Create Socket Error: %d\n", GetLastError()); WSACleanup(); return 6; } BOOL bOptVal = TRUE; int iOptLen = sizeof(BOOL); if( SOCKET_ERROR == setsockopt(sock, SOL_SOCKET, SO_BROADCAST, (char*)&bOptVal, iOptLen) ) { printf("Set Socket Option Error: %d\n", WSAGetLastError()); closesocket(sock); WSACleanup(); return 7; } sockaddr_in to; to.sin_family = AF_INET; to.sin_port = htons(0); to.sin_addr.s_addr = htonl(INADDR_BROADCAST); //Send Magic Packet if( SOCKET_ERROR == sendto(sock, (const char*)ucMagicPacket, iPacketSize, 0, (const struct sockaddr*)&to, sizeof(to)) ) printf("Magic packet send error: %d\n", WSAGetLastError()); else printf("Magic packet send successfully!\n"); closesocket(sock); WSACleanup(); return 0; }