[devel] Use png_calloc() instead of png_malloc(); png_memset() in pngrutil.c

ANNOUNCE

 
-Libpng 1.4.0rc07 - December 30, 2009
+Libpng 1.4.0rc07 - January 1, 2010
 
 This is not intended to be a public release.  It will be replaced
 within a few weeks by a public version or by another test version.
@@ -759,10 +759,11 @@ version 1.4.0rc06 [December 29, 2009]
   Reverted the gamma_table changes from libpng-1.4.0beta109.
   Fixed some indentation errors.
 
-version 1.4.0rc07 [December 30, 2009]
+version 1.4.0rc07 [January 1, 2010]
   Revised libpng*.txt and libpng.3 about 1.2.x->1.4.x differences.
+  Use png_calloc() instead of png_malloc(); png_memset() in pngrutil.c
 
-version 1.4.0 [December 30, 2009]
+version 1.4.0 [January 1, 2010]
   No changes.
 
 Send comments/corrections/commendations to png-mng-implement at lists.sf.net

pngrutil.c

 
 /* pngrutil.c - utilities to read a PNG file
  *
- * Last changed in libpng 1.4.0 [December 29, 2009]
- * Copyright (c) 1998-2009 Glenn Randers-Pehrson
+ * Last changed in libpng 1.4.0 [January 1, 2010]
+ * Copyright (c) 1998-2010 Glenn Randers-Pehrson
  * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
  * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
  *
@@ -3285,9 +3285,12 @@ defined(PNG_USER_TRANSFORM_PTR_SUPPORTED)
    if (row_bytes + 48 > png_ptr->old_big_row_buf_size)
    {
      png_free(png_ptr, png_ptr->big_row_buf);
-     png_ptr->big_row_buf = (png_bytep)png_malloc(png_ptr, row_bytes + 48);
      if (png_ptr->interlaced)
-       png_memset(png_ptr->big_row_buf, 0, row_bytes + 48);
+        png_ptr->big_row_buf = (png_bytep)png_calloc(png_ptr,
+            row_bytes + 48);
+     else
+        png_ptr->big_row_buf = (png_bytep)png_malloc(png_ptr,
+            row_bytes + 48);
      png_ptr->old_big_row_buf_size = row_bytes + 48;
 
 #ifdef PNG_ALIGNED_MEMORY_SUPPORTED