#! /bin/sh /usr/share/dpatch/dpatch-run
## 10_id3v1_zeropadding.dpatch by  <sm17hs@gmail.com>
##
## All lines beginning with `## DP:' are a description of the patch.
## DP: Use zero padding instead of space padding for ID3V1 fields
## DP: (as requested by http://id3lib.sourceforge.net/id3/id3v1.html).

@DPATCH@
diff -urNad libid3tag-0.15.1b~/render.c libid3tag-0.15.1b/render.c
--- libid3tag-0.15.1b~/render.c	2004-01-23 10:41:32.000000000 +0100
+++ libid3tag-0.15.1b/render.c	2009-11-09 17:17:48.000000000 +0100
@@ -183,18 +183,16 @@
   end  = data + length;
 
   if (ucs4) {
-    while (*ucs4 && end - data > 0) {
+    while (*ucs4 && end - data > 0)
       *data++ = *ucs4++;
-
-      if (data[-1] == '\n')
-	data[-1] = ' ';
-    }
   }
 
-  while (end - data > 0)
-    *data++ = ' ';
-
   *data = 0;
 
-  return id3_latin1_serialize(ptr, padded, 0);
+  id3_latin1_serialize(ptr, padded, 0);
+
+  if (end - data > 0)
+    id3_render_padding(ptr, 0, end - data);
+
+  return length;
 }