[Digikam-devel] [Bug 131550] digikam/showfoto can't show jpeg image under PowerPC

[Marcel Wiesweg]

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http://bugs.kde.org/show_bug.cgi?id=131550         




------- Additional Comments From marcel.wiesweg gmx de  2006-08-03 23:53 -------
SVN commit 569460 by mwiesweg:

Make JPEG signature checking endianness-proof
(please test)

CCBUGS: 131550


 M  +4 -2      jpegloader.cpp  


--- trunk/extragear/graphics/digikam/libs/dimg/loaders/jpegloader.cpp #569459:569460
 @ -105,7 +105,7  @
     if (!file)
         return false;
 
-    unsigned short header;
+    unsigned char header[2];
 
     if (fread(&header, 2, 1, file) != 1)
     {
 @ -113,7 +113,9  @
         return false;
     }
 
-    if (header != 0xd8ff)
+    unsigned char jpegID[] = { 0xFF, 0xD8 };
+
+    if (memcmp(header, jpegID, 2) != 0)
     {
         // not a jpeg file
         fclose(file);