[patch] files/libpng-1.2.5-gentoo.diff

libpng-1.2.5-gentoo.diff (text/plain), 2.09 KB, created by Thierry Carrez (RETIRED) on 2004-05-07 03:11:35 UTC

--- libpng3-1.2.5.orig/pngrtran.c
+++ libpng3-1.2.5/pngrtran.c
@@ -1930,7 +1930,7 @@
          if (flags & PNG_FLAG_FILLER_AFTER)
          {
             png_bytep sp = row + (png_size_t)row_width * 3;
-            png_bytep dp = sp  + (png_size_t)row_width;
+            png_bytep dp = sp  + (png_size_t)row_width ;
             for (i = 1; i < row_width; i++)
             {
                *(--dp) = lo_filler;
@@ -1947,7 +1947,7 @@
          else
          {
             png_bytep sp = row + (png_size_t)row_width * 3;
-            png_bytep dp = sp + (png_size_t)row_width;
+            png_bytep dp = sp + (png_size_t)row_width ;
             for (i = 0; i < row_width; i++)
             {
                *(--dp) = *(--sp);
@@ -1965,8 +1965,8 @@
          /* This changes the data from RRGGBB to RRGGBBXX */
          if (flags & PNG_FLAG_FILLER_AFTER)
          {
-            png_bytep sp = row + (png_size_t)row_width * 3;
-            png_bytep dp = sp  + (png_size_t)row_width;
+            png_bytep sp = row + (png_size_t)row_width * 6;
+            png_bytep dp = sp  + (png_size_t)row_width * 2;
             for (i = 1; i < row_width; i++)
             {
                *(--dp) = hi_filler;
@@ -1987,8 +1987,8 @@
          /* This changes the data from RRGGBB to XXRRGGBB */
          else
          {
-            png_bytep sp = row + (png_size_t)row_width * 3;
-            png_bytep dp = sp  + (png_size_t)row_width;
+            png_bytep sp = row + (png_size_t)row_width * 6;
+            png_bytep dp = sp  + (png_size_t)row_width * 2;
             for (i = 0; i < row_width; i++)
             {
                *(--dp) = *(--sp);
--- libpng3-1.2.5.orig/pngerror.c       2002-10-03 05:32:27.000000000 -0600
+++ libpng3-1.2.5/pngerror.c     2004-04-29 09:26:18.000000000 -0600
@@ -135,10 +135,12 @@
       buffer[iout] = 0;
    else
    {
+      png_size_t len = strnlen(error_message, 63);
+
       buffer[iout++] = ':';
       buffer[iout++] = ' ';
-      png_memcpy(buffer+iout, error_message, 64);
-      buffer[iout+63] = 0;
+      png_memcpy(buffer+iout, error_message, len);
+      buffer[iout+len] = 0;
    }
 }