guix/gnu/packages/patches/id3lib-UTF16-writing-bug.patch

diff -ruN id3lib-3.8.3.orig/ChangeLog id3lib-3.8.3/ChangeLog
--- id3lib-3.8.3.orig/ChangeLog	2003-03-02 01:23:00.000000000 +0100
+++ id3lib-3.8.3/ChangeLog	2006-02-22 00:33:59.946214472 +0100
@@ -1,3 +1,8 @@
+2006-02-17  Jerome Couderc
+
+    * Patch from Spoon to fix UTF-16 writing bug
+      http://sourceforge.net/tracker/index.php?func=detail&aid=1016290&group_id=979&atid=300979
+
 2003-03-02 Sunday 17:38   Thijmen Klok <thijmen@id3lib.org>

 	* THANKS (1.20): added more people
diff -ruN id3lib-3.8.3.orig/src/io_helpers.cpp id3lib-3.8.3/src/io_helpers.cpp
--- id3lib-3.8.3.orig/src/io_helpers.cpp	2003-03-02 01:23:00.000000000 +0100
+++ id3lib-3.8.3/src/io_helpers.cpp	2006-02-22 00:35:02.926639992 +0100
@@ -363,11 +363,22 @@
     // Write the BOM: 0xFEFF
     unicode_t BOM = 0xFEFF;
     writer.writeChars((const unsigned char*) &BOM, 2);
+    // Patch from Spoon : 2004-08-25 14:17
+    //   http://sourceforge.net/tracker/index.php?func=detail&aid=1016290&group_id=979&atid=300979
+    // Wrong code
+    //for (size_t i = 0; i < size; i += 2)
+    //{
+    //  unicode_t ch = (data[i] << 8) | data[i+1];
+    //  writer.writeChars((const unsigned char*) &ch, 2);
+    //}
+    // Right code
+    unsigned char *pdata = (unsigned char *) data.c_str();
     for (size_t i = 0; i < size; i += 2)
     {
-      unicode_t ch = (data[i] << 8) | data[i+1];
+      unicode_t ch = (pdata[i] << 8) | pdata[i+1];
       writer.writeChars((const unsigned char*) &ch, 2);
     }
+    // End patch
   }
   return writer.getCur() - beg;
 }