Fix read from file

data/pattern.txt

@@ -0,0 +1 @@
+mamma

data/text.txt

@@ -0,0 +1 @@
+testo di esempio mamma altra mamma esempio prova mammamma esempio mamma

main.c

@@ -100,11 +100,8 @@ void find_end(int residue, char *pattern, char *text, int **matches, int *match_
 }
 
 void initialize() {
-    text = "testo di esempio mamma altra mamma esempio prova mammamma esempio mamma";//read_file("data/text.txt", &text_len);
+    text = read_file("data/text.txt", &text_len);
-    pattern = "mamma";//read_file("data/pattern.txt", &pattern_len);
+    pattern = read_file("data/pattern.txt", &pattern_len);
-
-    text_len = strlen(text);
-    pattern_len = strlen(pattern);
 
     printf("text: %s\n", text);
     printf("pattern: %s\n", pattern);

util.c

@@ -37,8 +37,9 @@ char *read_file(char *filepath, int *len) {
     *len = ftell(f);
     fseek(f, 0, SEEK_SET);
 
-    char *content = (char *) malloc(sizeof(char) * (*len + 1));
+    char *content = (char *) malloc(sizeof(char) * (*len));
     fread(content, 1, *len, f);
+    *len = *len - 1;
     content[*len] = '\0';
 
     fclose(f);