$NetBSD: patch-CacheDirs,v 1.2 1999/05/09 21:12:33 tron Exp $

*** /dev/null	Tue Feb  6 11:05:04 1996
--- README-CACHEDIRS	Tue Feb  6 13:03:37 1996
***************
*** 0 ****
--- 1,12 ----
+ Patch to translate directory names in the cache from e.g.
+   /www-cache/http/www.some.where.org/
+ to
+   /www-cache/http/org/where/some/www/
+ 
+ Note that this can lead to unexpected problems, when you have two URLs
+ like <URL:http://some.where.org/www/> and <URL:http://www.some.where.org/>.
+ [This does happen, e.g. many sites out there have "some.where.org" and
+ "www.some.where.org" point to the same machine.]
+ 
+ --
+ -- 19950915, Gertjan van Oosten, gertjan@West.NL, West Consulting B.V.
*** WWW/Daemon/Implementation/HTCache.c.orig	Fri Aug 12 12:36:11 1994
--- Daemon/Implementation/HTCache.c	Fri Sep 15 16:25:33 1995
***************
*** 5,16 ****
--- 5,19 ----
  ** AUTHORS:
  **	AL	Ari Luotonen	luotonen@dxcern.cern.ch
  **	FM	Fote Macrides	macrides@sci.wfeb.edu
+ **	GJ	Gertjan van Oosten	gertjan@West.NL
  **
  ** HISTORY:
  **	31 Jan 94  AL	Written from scratch on a *very* beautiful
  **			Sunday afternoon -- seems like the spring
  **			is already coming, yippee!
  **	 8 Jul 94  FM	Insulate free() from _free structure element.
+ **	15 Sep 95  GJ	Translate host names in cache to (reversed)
+ **			directories.
  **
  ** BUGS:
  **
***************
*** 243,248 ****
--- 246,252 ----
  {
      char * access = NULL;
      char * host = NULL;
+     char * revhost = NULL;
      char * path = NULL;
      char * cfn = NULL;
      BOOL welcome = NO;
***************
*** 274,291 ****
  	    *cur = TOLOWER(*cur);
  	    cur++;
  	}
      }
  
      cfn = (char*)malloc(strlen(cc.cache_root) +
  			strlen(access) +
! 			(host ? strlen(host) : 0) +
  			(path ? strlen(path) : 0) +
  			(welcome ? strlen(WELCOME_FILE) : 0) + 3);
      if (!cfn) outofmem(__FILE__, "cache_file_name");
!     sprintf(cfn, "%s/%s/%s%s%s", cc.cache_root, access, host, path,
  	    (welcome ? WELCOME_FILE : ""));
  
!     FREE(access); FREE(host); FREE(path);
  
      /*
      ** This checks that the last component is not too long.
--- 278,310 ----
  	    *cur = TOLOWER(*cur);
  	    cur++;
  	}
+ 	/*
+ 	** Now transform host name from "www.some.where.org"
+ 	** to "org/where/some/www".
+ 	** [For nameless hosts, you'd want the IP address
+ 	** translated from "10.127.7.254" to "10/127/7/254",
+ 	** but that is left as an exercise.]
+ 	*/
+ 	revhost = malloc(strlen(host)+1);
+ 	revhost[0] = '\0';
+ 	while (cur = strrchr(host, '.')) {
+ 	    strcat(revhost, cur+1);
+ 	    strcat(revhost, "/");
+ 	    *cur = '\0';
+ 	}
+ 	strcat(revhost, host);
      }
  
      cfn = (char*)malloc(strlen(cc.cache_root) +
  			strlen(access) +
! 			(revhost ? strlen(revhost) : 0) +
  			(path ? strlen(path) : 0) +
  			(welcome ? strlen(WELCOME_FILE) : 0) + 3);
      if (!cfn) outofmem(__FILE__, "cache_file_name");
!     sprintf(cfn, "%s/%s/%s%s%s", cc.cache_root, access, revhost, path,
  	    (welcome ? WELCOME_FILE : ""));
  
!     FREE(access); FREE(host); FREE(revhost); FREE(path);
  
      /*
      ** This checks that the last component is not too long.