Falscher pointer ?!?

#include <stdio.h>
#include <stdlib.h>
#include <gtk/gtk.h>
#include <string.h>
#include <glib.h>

typedef struct
{
	char *path;
	char *title;
	char *artist;
	char *album;
	int year;
	char *comment;
	int track;
	char *genre;
	int bitrate;
	int sample_rate;
	int channels;
	int length;
} sFile;


int max_titel = 0;
sFile *pdateien[1000];


int filetypification(char *pfad, sFile *pointer)
{
	printf("\n\n----pfad: %s\n\n",(char*)pdateien->path);  
	pointer->path = pfad;
	return 0;
}


static gboolean delete_event( GtkWidget *widget,GdkEvent  *event, gpointer   data )
{
	return FALSE;
}


int main( int   argc, char *argv )
{
GtkWidget *window;
GtkWidget *b_play, *b_pause, *b_stop, *b_next, *b_previous, *b_repeat, *b_shuffle, *b_volup, *b_voldown, *b_open;
GtkWidget *table;
GtkWidget *hbox;
GtkWidget *vbox;
GtkWidget *l_titel,*l_zeit, *f_titel, *f_zeit;
GtkWidget *file_select;
GtkWidget *pbar;
GtkWidget *scrolled_window;
GtkWidget *gtklist;
GtkWidget *playlist;
GtkWidget *list_item;
gchar *sel;
gint open;


gtk_init (&argc, &argv);


pbar = gtk_progress_bar_new ();

int closeopen(void)
{
	gtk_widget_hide(file_select); 
	return (0);
}

int fileopen(void)
{

	gtk_widget_show(file_select);
	return (0);
}


int closelist(void)
{
	gtk_widget_hide(playlist);
	return (0);
}



int get_filename(GtkWidget *widget, GtkFileSelection *selected)
{
/* ------------------------------------------------------------------------------------*/
	/* MÖGLICHKEIT 1: FUNKTIONIERT NICHT */
	sel = (char *)gtk_file_selection_get_filename(GTK_FILE_SELECTION(selected));

	/* MÖGLICHKEIT 2: FUNKTIONIERT */
	if(max_titel == 0)
		sel = "asd";  
	else
		sel = "dsa";  

/* ------------------------------------------------------------------------------------*/

	printf("Folgende Datei wurde ausgewählt : %s\n\n", sel);  
	gtk_widget_hide(file_select);

	open=1;
	pdateien[max_titel] = malloc(sizeof(sFile)); 
	filetypification(sel, pdateien[max_titel]); 

	max_titel++;

	printf("\n\npfad: %s\n",(char*)pdateien->path);  

	if(max_titel == 2)
	{
		printf("\n\npfad: %s\n",(char*)pdateien[1]->path);  
	}


	return (0);

}


/* Create a new window */
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);


/* Set the window title */
gtk_window_set_title (GTK_WINDOW (window), "MP3 Player");  

/* Set a handler for delete_event that immediately
* exits GTK. */
g_signal_connect (G_OBJECT (window), "delete_event",  
      G_CALLBACK (delete_event), NULL);

/* Sets the border width of the window. */
gtk_container_set_border_width (GTK_CONTAINER (window), 20);

/* Create a 2 Zeilen x8 Spalten table */
table = gtk_table_new (2, 8, TRUE);

/*open  Knopf*/ 
b_open = gtk_button_new_with_label ("OPEN");  
g_signal_connect (G_OBJECT (b_open), "clicked",  
      G_CALLBACK (fileopen),NULL);
gtk_table_attach_defaults (GTK_TABLE (table), b_open, 7, 8, 0, 2);
 
 /*Eine Vertikale BOx mit unterliegenden horizontalen Boxen*/
vbox = gtk_vbox_new (FALSE, 5);
hbox = gtk_hbox_new (FALSE, 5);
gtk_container_add (GTK_CONTAINER (window), hbox);
gtk_box_pack_start (GTK_BOX (hbox), vbox, FALSE, FALSE, 0);
gtk_container_set_border_width (GTK_CONTAINER (window), 5);

hbox = gtk_hbox_new (FALSE, 5);
gtk_box_pack_start (GTK_BOX (vbox), pbar, FALSE, FALSE, 0);
gtk_box_pack_start (GTK_BOX (vbox), table, FALSE, FALSE, 0);

gtk_widget_show_all (window);

/* Oeffnen-dialog ------------------------------------------------- */

file_select = gtk_file_selection_new("Auswahl");  
/*Signale einrichten*/
gtk_signal_connect(GTK_OBJECT(file_select), "destroy",  
    (GtkSignalFunc) closeopen, &file_select);
gtk_signal_connect(GTK_OBJECT(GTK_FILE_SELECTION(file_select)->ok_button),
    "clicked", (GtkSignalFunc) get_filename, file_select);  
gtk_signal_connect_object(GTK_OBJECT(GTK_FILE_SELECTION(file_select)->cancel_button),
           "clicked", (GtkSignalFunc) closeopen, GTK_OBJECT(file_select));  


/*lock window size*/
gtk_window_set_resizable (GTK_WINDOW(window), FALSE);
gtk_main ();
return 0;
}