Changeset 100 for trunk

Timestamp:

03/21/08 11:20:24 (16 years ago)

Author:

tim

Message:

fixed integer underflow bug

updated some documentation

Location:

trunk

Files:

• doc/devel/winntreg.txt (modified) (3 diffs)
• lib/range_list.c (modified) (1 diff)

trunk/doc/devel/winntreg.txt

@@ -23 +23 @@
 0x0000002C      D-Word      1
 0x000001FC      D-Word      Sum of all D-Words from 0x00000000 to
-0x000001FB  //XOR of all words. Nigel
+                            0x000001FB  //XOR of all words. Nigel
 
 I have analyzed more registry files (from multiple machines running
@@ -161 +161 @@
                   (UNICODE!)
 
-The "lf"-record
+The "lf"/"lh"/"ri"-record (hash list header)
 ===============
 Offset      Size      Contents
-0x0000      Word      ID: ASCII-"lf" = 0x666C
+0x0000      Word      ID: ASCII-"lf" = 0x666C  (or "lh" or "ri")
 0x0002      Word      number of keys
 0x0004      ????      Hash-Records
@@ -172 +172 @@
 Offset      Size      Contents
 0x0000      D-Word      Offset of corresponding "nk"-Record
-0x0004      D-Word      ASCII: the first 4 characters of the key-name, padded with 0-s. Case sensitiv!
-
+0x0004      D-Word      ASCII: the first 4 characters of the key-name, padded with 0-s. Case sensitive! 
+                        (the hash value may be computed differently for the various header types 
+                         "lf"/"lh"/"ri"/etc)
 Keep in mind, that the value at 0x0004 is used for checking the data-consistency! If you change the 
 key-name you have to change the hash-value too!

trunk/lib/range_list.c

@@ -231 +231 @@
 
   /* Try to keep memory usage down */
-  if(rl->size < (rl->elem_alloced - 2 * RANGE_LIST_ALLOC_SIZE))
+  if(rl->size + 2 * RANGE_LIST_ALLOC_SIZE  < rl->elem_alloced)
   {
     tmp = (range_list_element**)realloc(rl->elements,