+#include <stdlib.h>
+#include <assert.h>
+#include <string.h>
+#include <stdio.h>
+
+#include "url.h"
+
+typedef struct Url {
+ char * link_name;
+ char * target;
+ int x;
+ int y;
+ struct Url * next;
+} Url_t;
+
+static void url_del_elem(Url_t * elem);
+static void url_print(Url_t * u);
+
+static Url_t *list;
+static int index_max;
+static int init_ok;
+
+void url_init(void) {
+ list = NULL;
+ index_max = 0;
+ init_ok = 1;
+}
+
+int url_add(const char * link_name, int link_name_length, const char * target, int target_length, int x, int y) {
+ if (!init_ok) return -1;
+
+ Url_t *tmp = NULL;
+ int i = 0;
+
+ if (list) {
+ tmp = list;
+ while (tmp->next) {
+ tmp = tmp->next;
+ i++;
+ }
+ tmp->next = malloc(sizeof(Url_t));
+ assert(tmp->next);
+ tmp = tmp->next;
+ } else {
+ list = malloc(sizeof(Url_t));
+ tmp = list;
+ assert(tmp);
+ }
+
+ tmp -> link_name = calloc(link_name_length, sizeof(char));
+ assert(tmp->link_name);
+ strncpy(tmp->link_name, link_name, link_name_length);
+
+ tmp->target = calloc(target_length, sizeof(char));
+ assert(tmp->target);
+ strncpy(tmp->target, target, target_length);
+
+ tmp->x = x;
+ tmp->y = y;
+ tmp->next = NULL;
+
+ index_max++;
+
+ return index_max-1;
+}
+
+
+char * url_get_target(int index) {
+ Url_t * tmp = list;
+
+ while (index > 0 && tmp && tmp->next) {
+ tmp = tmp->next;
+ index --;
+ }
+
+ if (!index) {
+ return tmp->target;
+ } else return NULL;
+}
+
+char * url_get_name(int index) {
+ Url_t * tmp = list;
+
+ while (index > 0 && tmp && tmp->next) {
+ tmp = tmp->next;
+ index --;
+ }
+
+ if (!index) {
+ return tmp->link_name;
+ } else return NULL;
+}
+
+void url_purge() {
+ url_del_elem(list);
+ list = NULL;
+ index_max = 0;
+ init_ok = 0;
+}
+
+static void url_del_elem(Url_t *elem) {
+ if (!elem) return;
+
+ if (elem->next) {
+ url_del_elem(elem->next);
+ elem->next = NULL;
+ }
+
+ if (elem->target) {
+ free(elem->target);
+ elem->target = NULL;
+ }
+
+ if (elem->link_name) {
+ free(elem->link_name);
+ elem->link_name = NULL;
+ }
+
+ free(elem);
+}
+
+void url_dump(void) {
+ if (!list) return;
+
+ Url_t *tmp = list;
+
+ while (tmp) {
+ url_print(tmp);
+ if (tmp->next)
+ tmp = tmp->next;
+ else break;
+ }
+}
+
+static void url_print(Url_t * u) {
+ printf("Url_t @ %p\n", u);
+}
+
+int url_get_amount(void) {
+ return index_max;
+}