(no commit message)

[imagemagick] / coders / meta.c

diff --git a/coders/meta.c b/coders/meta.c
index 40f496433ea5c2c8798baa1d65842d14be6b09d5..aabaa86df9ad0f6b5582b464ad2a763dd3640603 100644 (file)
--- a/coders/meta.c
+++ b/coders/meta.c
@@ -17,7 +17,7 @@
 %                                 July 2001                                   %
 %                                                                             %
 %                                                                             %
-%  Copyright 1999-2011 ImageMagick Studio LLC, a non-profit organization      %
+%  Copyright 1999-2012 ImageMagick Studio LLC, a non-profit organization      %
 %  dedicated to making software imaging solutions freely available.           %
 %                                                                             %
 %  You may not use this file except in compliance with the License.  You may  %
@@ -1604,9 +1604,6 @@ static size_t GetIPTCStream(unsigned char **info,size_t length)
     extent,
     info_length;
 
-  unsigned char
-    buffer[4] = { '\0', '\0', '\0', '\0' };
-
   unsigned int
     marker;
 
@@ -1719,27 +1716,32 @@ iptc_find:
     info_length++;
     if ((c & 0x80) != 0)
       {
+        /*
+          Long format.
+        */
+        tag_length=0;
         for (i=0; i < 4; i++)
         {
-          buffer[i]=(*p++);
+          tag_length<<=8;
+          tag_length|=(*p++);
           length--;
           if (length == 0)
             break;
           info_length++;
         }
-        tag_length=(((size_t) buffer[0]) << 24) |
-          (((size_t) buffer[1]) << 16) |
-          (((size_t) buffer[2]) << 8) | (((size_t) buffer[3])); 
       }
     else
       {
-        tag_length=(size_t) (c << 8);
+        /*
+          Short format.
+        */
+        tag_length=((long) c) << 8;
         c=(*p++);
         length--;
         if (length == 0)
           break;
         info_length++;
-        tag_length|=c;
+        tag_length|=(long) c;
       }
     if (tag_length > (length+1))
       break;