e70152e44cc66cc599ff6b699eb8adc07f3e656a
kent
  Sat May 24 21:09:34 2014 -0700
Adding Copyright NNNN Regents of the University of California to all files I believe with reasonable certainty were developed under UCSC employ or as part of Genome Browser copyright assignment.
diff --git src/lib/udc.c src/lib/udc.c
index 484b3d6..5ccb2b8 100644
--- src/lib/udc.c
+++ src/lib/udc.c
@@ -1,15 +1,18 @@
+/* Copyright (C) 2014 The Regents of the University of California 
+ * See README in this or parent directory for licensing information. */
+
 /* udc - url data cache - a caching system that keeps blocks of data fetched from URLs in
  * sparse local files for quick use the next time the data is needed. 
  *
  * This cache is enormously simplified by there being no local _write_ to the cache,
  * just reads.  
  *
  * The overall strategy of the implementation is to have a root cache directory
  * with a subdir for each file being cached.  The directory for a single cached file
  * contains two files - "bitmap" and "sparseData" that contains information on which
  * parts of the URL are cached and the actual cached data respectively. The subdirectory name
  * associated with the file is constructed from the URL in a straightforward manner.
  *     http://genome.ucsc.edu/cgi-bin/hgGateway
  * gets mapped to:
  *     rootCacheDir/http/genome.ucsc.edu/cgi-bin/hgGateway/
  * The URL protocol is the first directory under the root, and the remainder of the