Index: work/alien_formats/altium/pcbdoc_bin.c
===================================================================
--- work/alien_formats/altium/pcbdoc_bin.c	(revision 35455)
+++ work/alien_formats/altium/pcbdoc_bin.c	(revision 35456)
@@ -60,6 +60,7 @@
 		return -1;
 
 	tmp->data[len] = '\0'; /* safety: always make it a valid string just in case it is text */
+	tmp->used = len+1;
 
 	return len;
 }
@@ -66,7 +67,7 @@
 
 static int pcbdoc_bin_parse_ascii(rnd_hidlib_t *hidlib, altium_tree_t *tree, const char *record, altium_buf_t *tmp)
 {
-#warning TODO: take over tmp's buff and make it a block
+#warning TODO: take over tmps buff and make it a block
 	return 0;
 }
 
Index: work/alien_formats/altium/pcbdoc_bin.h
===================================================================
--- work/alien_formats/altium/pcbdoc_bin.h	(revision 35455)
+++ work/alien_formats/altium/pcbdoc_bin.h	(revision 35456)
@@ -1,4 +1,4 @@
 typedef struct {
-	long alloced;
+	long alloced, used;
 	unsigned char *data;
 } altium_buf_t;