#include <stdio.h>
#include <stdlib.h>
#include <string.h>
//#include <unixstd.h>
//#include <io.h>

const int MinX=5000;//5348
const int MinY=2000;//2265
const int MaxX=10000;//10022-Canada
const int MaxY=4600;//4512
int XStarting, XFinish, XStep, YStarting, YFinish, YStep;
const char tmpjpgfile[]="tmp.jpg";
const char _tmpjpgfile[]="_tmp.jpg";
void main(int argc, char**argv)
{
	if (argc!=7)
	{
		printf("\n Usage:\n");
		printf("%s XStarting XFinish XStep YStarting YFinish YStep\n",argv[0]);
helping:
		printf("The XValues could be from %d to %d and YValues could be from %d to %d\n",MinX,MaxX,MinY,MaxY);
		printf(" Steps could be from 1 to any value !");
		exit(1);
	}

	XStarting=atoi(argv[1]);//1
	XFinish=atoi(argv[2]);//2
	XStep=atoi(argv[3]);
	YStarting=atoi(argv[4]);
	YFinish=atoi(argv[5]);
	YStep=atoi(argv[6]);
	if (XStarting<MinX || XStarting>MaxX)
		goto helping;
	if (YStarting<MinY || YStarting>MaxY)
		goto helping;
	if (XFinish<MinX || XFinish>MaxX)
		goto helping;
	if (YFinish<MinY || YFinish>MaxY)
		goto helping;
	if (XStep<1 || YStep<1)
		goto helping;
	if ((XStarting>=XFinish) || (YStarting>=YFinish))
	{
		printf(" Start values should be smaller than finish !\n");
		exit(2);
	}

	int XCounter,YCounter;
	for (XCounter=XStarting;XCounter<XFinish;XCounter+=XStep)
	{
		for (YCounter=YStarting;YCounter<YFinish;YCounter+=YStep)
		{
			char FileName[1024];
			char Str[1256];
			sprintf(FileName,"%d_%d.jpg",XCounter,YCounter);
						
			sprintf(Str,"lynx -dump \"http://terraServer.microsoft.com/GetImageXY.asp?XId=%d&YId=%d&SrcId=1&ImgSize=1\" > %s",XCounter,YCounter,FileName);//tmpjpgfile);
			system(Str);

			int filesize;
			FILE *fileptr;
			if (fileptr=fopen(FileName//tmpjpgfile
				,"rb"),fileptr==NULL)
			{
				filesize=-1;
			}
			else
			{
				if (fseek(fileptr,0L,SEEK_END))
				{
					filesize=-1;
				}
				else
					filesize=ftell(fileptr);
				fclose(fileptr);
			}

			/*char Conv[64];
			strcpy(Str,"cp ");
			strcat(Str,tmpjpgfile);
			strcat(Str," ");
			itoa(XCounter,Conv,10);
			strcat(Str,Conv);
			strcat(Str,"_");
			itoa(YCounter,Conv,10);
			strcat(Str,Conv);
			strcat(Str,".jpg");
			system(Str);*/

			if (filesize==8161)
			{
				sprintf(Str,"cmp %s %s",
					FileName//tmpjpgfile
					,_tmpjpgfile);
//				sprintf(Str,"comp %s %s",tmpjpgfile,_tmpjpgfile);
				if (system(Str))
					;
				else
				filesize=1000000;
			}
			//unlink(FileName);
			sprintf(Str,"rm %s",FileName);
			printf("%d %d %d\n",XCounter,YCounter,filesize);
			system(Str);
			//8161 for grey
		}
	}
}