Reversed the order of file manipulation functions, which fixed the 'Corrupted top size' error

file_helpers.c

@@ -15,6 +15,7 @@ char* file_to_string(char* filename) {
 
 	fread(buffer,1,file_size,fp);
 
+	rewind(fp);
 	fclose(fp);
 
 	return buffer;
@@ -44,6 +45,7 @@ int num_of_lines(char* filename) {
 		}
 	}
 
+	rewind(fp);
 	fclose(fp);
 
 	return num_lines;

main.c

@@ -36,8 +36,9 @@ int main() {
 	User* dest_users[MAX_CONNECTIONS] = {NULL};
 	FD_ZERO(&read_fd_set);
 	char buffer[BUFFER_SIZE];
-	users = create_user_list("user_file.txt");
+
 	num_users = num_of_lines("user_file.txt");
+	users = create_user_list("user_file.txt");
 
 	struct sockaddr addr_struct;
 	int server_sock = create_local(4,'T',"127.0.0.1",30000,&addr_struct);
@@ -131,7 +132,7 @@ User** create_user_list(char* filename) {
         User** users = malloc (num_users * sizeof(User*));
 
         token = strtok(file_str," \r\n");
-        for (int i=0;i<num_users-1;i++) {
+        for (int i=0;i<num_users;i++) {
 		users[i]->username = strdup(token);
                 token = strtok(NULL," \r\n");
                 users[i]->password = strdup(token);