diff -Nru xsys-2.2.0/xsys.c xsys-2.2.0-patched/xsys.c
--- xsys-2.2.0/xsys.c	2007-07-13 21:38:51.000000000 +0100
+++ xsys-2.2.0-patched/xsys.c	2009-07-11 21:23:14.000000000 +0100
@@ -509,7 +509,7 @@
 
 static int netstream_cb(char *word[], char *word_eol[], void *userdata)
 {
-	char netstream[bsize], mag_r[3], mag_s[5];
+	char netstream[bsize], mag_r[5], mag_s[5];
 	unsigned long long bytes_recv, bytes_sent, bytes_recv_p, bytes_sent_p;
 	struct timespec ts = {1, 0};
 	
@@ -719,7 +719,7 @@
 		flat_format_output("length", length, format);
 	else
 		format_output("length", length, format);
-	strncat(title, length, bsize);
+	strncat(title, length, bsize - 1);
 	
 	if ((action != 0) && (long)userdata)
 		xchat_printf(ph, "You are %s", title);