--- apd.c.org	2010-05-11 10:45:29.000000000 +0200
+++ apd.c	2010-05-11 10:47:12.000000000 +0200
@@ -786,7 +786,7 @@
 static int hextab_initialized = 0;
 static char *hexdig = "0123456789abcdef";
 
-static char *ars_decode_hex(struct ars_packet *pkt, char *s, int *blen)
+static unsigned char *ars_decode_hex(struct ars_packet *pkt, char *s, int *blen)
 {
 	int len = strlen(s), i;
 	unsigned char *d, *saved;
@@ -823,7 +823,7 @@
 	return saved;
 }
 
-static char *ars_decode_string(struct ars_packet *pkt, char *s, int *blen)
+static unsigned char *ars_decode_string(struct ars_packet *pkt, char *s, int *blen)
 {
 	int l = strlen(s), i;
 	int bl = 0;
@@ -875,7 +875,7 @@
 			return -ARS_OK;
 		return ars_push_data(pkt, layer, buffer, n_read);
 	} else if (strcasecmp(f, "str") == 0) {
-		char *binary;
+		unsigned char *binary;
 		int err, blen;
 
 		binary = ars_decode_string(pkt, v, &blen);
@@ -885,7 +885,7 @@
 		free(binary);
 		return err;
 	} else if (strcasecmp(f, "hex") == 0) {
-		char *binary;
+		unsigned char *binary;
 		int err, blen;
 
 		binary = ars_decode_hex(pkt, v, &blen);