Merge pull request #34 from andrebrait/patch-2

Add more details on how to parse the remainders

docs/unrar.html

@@ -190,6 +190,10 @@ Packed Data             (Total Packed Size) bytes
 <ul>
 	<li>4 bytes containing an MS-DOS date/time (except for mtime, which is part of FILE_HEAD)</li>
 	<li>0 to 3 bytes containing fractions of seconds in 100ns increments</li>
+        <ul>
+            <li>They form a 24-bit integer, sorted from least significant to most significant bits</li>
+            <li>If fewer than 3 bytes are present, the remaining least significant bits are to be padded with zeroes in order to complete 24-bits</li>
+        </ul>
 </ul>
 	
 <p>Follow the following pseudo-code to read in the ExtTime Structure.</p>
@@ -202,31 +206,43 @@ var extTimeFlags = readBits(16)
 mtime_rmode = extTimeFlags >> 12
 if ((mtime_rmode & 8)==0) goto ctime
 mtime_count = mtime_rmode & 0x3
-mtime_remainder = readBits(8*mtime_count);
+mtime_remainder = 0
+for (var i = 0; i < mtime_count; i++) {
+    mtime_remainder = (readBits(8) << 16) | (mtime_remainder >> 8)
+}
 if ((mtime_rmode & 4)!=0) mtime_remainder += one_second
 
 <b>ctime:</b>
 ctime_rmode = extTimeFlags >> 8
 if ((ctime_rmode & 8)==0) goto atime
-Set ctime to readBits(32)
+ctime = readBits(32)
 ctime_count = ctime_rmode & 0x3
-ctime_remainder = readBits(8*ctime_count)
+ctime_remainder = 0
+for (var i = 0; i < ctime_count; i++) {
+    ctime_remainder = (readBits(8) << 16) | (ctime_remainder >> 8)
+}
 if ((ctime_rmode & 4)!=0) ctime_remainder += one_second
 
 <b>atime:</b>
 atime_rmode = extTimeFlags >> 4
 if ((atime_rmode & 8)==0) goto arctime
-Set atime to readBits(32)
+atime = readBits(32)
 atime_count = atime_rmode & 0x3
-atime_remainder = readBits(8*atime_count)
+atime_remainder = 0
+for (var i = 0; i < atime_count; i++) {
+    atime_remainder = (readBits(8) << 16) | (atime_remainder >> 8)
+}
 if ((atime_rmode & 4)!=0) atime_remainder += one_second
 
 <b>arctime:</b>
 arctime_rmode = extTimeFlags
 if ((arctime_rmode & 8)==0) goto done_exttime
-Set arctime to readBits(32)
+arctime = readBits(32)
 arctime_count = arctime_rmode & 0x3
-arctime_remainder = readBits(8*arctime_count)
+arctime_remainder = 0
+for (var i = 0; i < arctime_count; i++) {
+    arctime_remainder = (readBits(8) << 16) | (arctime_remainder >> 8)
+}
 if ((arctime_rmode & 4)!=0) arctime_remainder += one_second
 
 <b>done_exttime</b>
@@ -575,6 +591,7 @@ ZeroCount               4 bits (only present if BitLength is 15)
 <ul>
 <li>Eugene Roshal &lt;roshal@rarlab.com&gt; - creator and owner of the RAR format</li>
 <li>Jeff Schiller &lt;codedread@gmail.com&gt; - creator of this document as part of the <a href="http://github.com/codedread/bitjs/">bitjs</a> project</li>
+<li>Andre Brait &lt;andrebrait@gmail.com&gt; - for documenting the ExtTime structure</li>
 </ul>
 </section>