#include <stdio.h>
#include <sys/types.h>
#include <stdlib.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <dirent.h>
#include <string.h>


main(int argc, char **argv)
{
int	x,y,z;
char	c;
char	s[2000];
char	qs[2000];
char	filename[2000];
DIR	*mydir;
int	handle;
struct	dirent	*de;
struct	dirent **namelist;
int	size;
FILE	*input;

x=0;
strcpy(qs,getenv("QUERY_STRING"));
for(y=0;y<strlen(qs);y++)
	{
	if(qs[y] == '&')
		{
		x = atoi(&qs[y+1]);
		break;
		}
	}	
strncpy(filename,qs,y);
filename[y] = 0;
sprintf(s,"/extreme/slideshows/data/%s",filename);
handle = open(s,O_RDONLY);
sprintf(s,"/extreme/slideshows/%s",filename);
mydir = opendir(s);
size = lseek(handle,0,2) / sizeof z;
lseek(handle,(x % (size-1)) * sizeof z,0);
read(handle,&z,sizeof z);
seekdir(mydir,z);
de = readdir(mydir);
//printf("%s\n",de->d_name);
sprintf(s,"/extreme/slideshows/%s/%s",filename,de->d_name);
input = fopen(s,"r");
printf("Content-type: image/jpeg\n\n");
c = fgetc(input);
while(!feof(input))
	{
	printf("%c",c);	
	c = fgetc(input);
	}
fclose(input);
closedir(mydir);
close(handle);
}