diff --git a/modules/map.c b/modules/map.c
new file mode 100644
index 0000000..55ecbb3
--- /dev/null
+++ b/modules/map.c
@@ -0,0 +1,54 @@
+//
+// Készítette: Toldi Balázs Ádám
+// Dátum:  2019. 10. 16.
+//
+
+#include "map.h"
+
+void map_init(map *m) {
+    m->length = 0;
+    m->size = 0;
+    m->pairs = 0;
+}
+
+bool map_isFound(map map, char* key){
+    for (int i = 0; i < map.length; ++i) {
+        if(strcmp(map.pairs[i].key,key) == 0)
+            return true;
+    }
+    return false;
+}
+
+char* map_getValue(map m, char* key){
+    for (int i = 0; i < m.length; ++i) {
+        if(strcmp(m.pairs[i].key,key) == 0)
+            return m.pairs[i].value;
+    }
+    return "UNDEFINED";
+}
+void map_dump(map m) {
+    for (int i = 0; i <m.length ; ++i) {
+        printf("%s %s\n",m.pairs[i].key,m.pairs[i].value);
+    }
+}
+
+void map_addPair(map* m,pair p) {
+    if (m->length >= m->size)
+    {
+        assert(m->length == m->size);
+        size_t new_size = (m->size + 2) * 2;
+        pair *new_list = realloc(m->pairs, new_size * sizeof(pair));
+        if (new_list == 0)
+            printf("OUT OF MEMORY!");
+        m->size = new_size;
+        m->pairs      = new_list;
+    }
+    m->pairs[m->length++] = p;
+}
+
+pair map_make_pair(char *key,char *value) {
+    pair result;
+    strcpy(result.key,key);
+    strcpy(result.value,value);
+    return result;
+}
diff --git a/modules/map.h b/modules/map.h
new file mode 100644
index 0000000..6420ee9
--- /dev/null
+++ b/modules/map.h
@@ -0,0 +1,39 @@
+//
+// Készítette: Toldi Balázs Ádám
+// Dátum:  2019. 10. 16.
+//
+
+#pragma once
+#include <stdarg.h>
+#include <string.h>
+#include <assert.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+typedef struct Pair{
+    char key[65];
+    char value[65];
+}pair;
+
+typedef struct Map
+{
+    size_t    size;
+    size_t    length;
+    pair   *pairs;
+} map,config;
+
+void initMap(map * m);
+
+bool map_isFound(map m, char* key);
+
+char* map_getValue(map m, char* key);
+
+void map_addPair(map *m, pair p);
+
+pair map_make_pair(char *key,char *value);
+
+void map_init(map *m);
+
+//Debug-hoz hasznos
+void map_dump(map m);
\ No newline at end of file
diff --git a/utility.c b/utility.c
index 836bbb1..9175e87 100644
--- a/utility.c
+++ b/utility.c
@@ -19,7 +19,9 @@ char* generateSeed(int len){
     result[len] = '\0';
     return result;
 }
-map* getHandshakeData(char* text,int* len){
+map getHandshakeData(char* text){
+    map result;
+    map_init(&result);
     if (text[0] == '@')
         memmove(text, text+1, strlen(text));
     int count = 0;
@@ -27,8 +29,6 @@ map* getHandshakeData(char* text,int* len){
         if(text[i] == '&')
             count++;
     }
-    *len = count+1;
-    map * m = (map*) malloc(sizeof(map)*(*len));
     int i =0;
     const char c[2] = "&";
     char *tmp;
@@ -36,31 +36,16 @@ map* getHandshakeData(char* text,int* len){
 
     while (tmp != NULL && i <count+1)
     {
-        char key[50];
-        char value[50];
+        char key[65];
+        char value[65];
         sscanf(tmp,"%[^=]=%s",key,value);
-        strcpy(m[i].key,key);
-        strcpy(m[i].value,value);
+        map_addPair(&result,map_make_pair(key,value));
         ++i;
         tmp = strtok (NULL, "&");
     }
-    return  m;
-}
-bool map_isFound(map map[],int len, char* key){
-    for (int i = 0; i < len; ++i) {
-        if(strcmp(map[i].key,key) == 0)
-            return true;
-    }
-    return false;
+    return result;
 }
 
-char* map_getValue(map m[],int len, char* key){
-    for (int i = 0; i < len; ++i) {
-        if(strcmp(m[i].key,key) == 0)
-            return m[i].value;
-    }
-    return "UNDEFINED";
-}
 void md5(char *string, char outputBuffer[33]){
     unsigned char hash[MD5_DIGEST_LENGTH];
     MD5_CTX sha256;
@@ -88,20 +73,14 @@ void logger_log(const char* _Format, ...){
     strftime(buf, 26, "%Y.%m.%d. %H:%M:%S", tm_info);
     char string[513];
     printf("[%s]\t",buf);
-    fprintf(fp,"[%s]\t");
+    fprintf(fp,"[%s]\t",buf);
     va_list args;
     va_start (args, _Format);
     vprintf(_Format,args);
     vfprintf(fp,_Format,args);
     va_end(args);
     fprintf(fp,"\n");
-    printf(stdout,"\n");
+    printf("\n");
 
     fclose(fp);
-}
-
-void map_dump(map *m, int len) {
-    for (int i = 0; i <len ; ++i) {
-        printf("%s %s\n",m[i].key,m[i].value);
-    }
-}
+}
\ No newline at end of file
diff --git a/utility.h b/utility.h
index 42e66ec..a67c431 100644
--- a/utility.h
+++ b/utility.h
@@ -2,36 +2,24 @@
 // Készítette: Toldi Balázs Ádám
 // Dátum:  2019. 10. 11.
 //
-#ifndef P2P_UTILITY_H
-#define P2P_UTILITY_H
+#pragma once
 #include <time.h>
 #include <stdlib.h>
 #include <stdio.h>
 #include <stdbool.h>
 #include <stdarg.h>
 #include <string.h>
+#include <assert.h>
 #include <openssl/md5.h>
 #include <ws2tcpip.h>
-#endif
+#include "modules/map.h"
 
 
 #define DEFAULT_BUFLEN 1024
 
 char* generateSeed(int len);
 
-typedef struct Map{
-    char key[50];
-    char value[50];
-} map;
-
-map* getHandshakeData(char* text,int *len);
-
-bool map_isFound(map m[],int len, char* key);
-
-char* map_getValue(map m[],int len, char* key);
-
-//Debug-hoz hasznos
-void map_dump(map m[],int len);
+map getHandshakeData(char* text);
 
 void md5(char *string, char outputBuffer[33]);