misc

[thirdparty/squid.git] / ChangeLog

Changes to squid-1.2.alpha4 ():

	- New MIME configuration, regular expression based
	- Added request_timeout config option
	- Multiple HTTP sockets (Lincoln Dale).
	- Moved 'fds_are_n_free' check to httpAccept().
	- s/USE_POLL/HAVE_POLL/; make poll() default if available.
	- Changed storeRegister to use offsets and make immediate
	  callbacks if appropriate.
	- Removed icpDetectClientClose().  Some of that functionality
	  goes into clientReadRequest() and the rest into
	  httpRequestFree().
	- Moved IP lookups to commConnect stuff.
	- Added support for retrying connect().
	- New inline debug() macro (David Luyer).
	- Replace frequent gettimeofday() calls with alarm(3) based
	  clock.  Need to add more gettimeofday() calls to get back
	  high-resolution timestamp logging (Andres Kroonmaa).
	- Added support for Cache-control: proxy-revalidate;
	  based on squid-1.1 patch from Mike Mitchell.

Changes to squid-1.2.alpha3 ():

	- Implemented persistent connections between clients and squid.
	- Moved various FD tables (comm.c, fdstat.c, disk.c) to a single
	  table in fd.c.
	- Removed use of FD as an identifier in certain callback
	  operations (ipcache, fqdncache).
	- General code cleanup.
	- Fixed typedefs for callback functions.
	- Removed FD lifetime/timeout dichotomy.  Now we only have
	  timeouts, however the lifetime concept/keyword may still
	  linger in certain places.
	- Change Makefile 'realclean' target to 'distclean'
	- Changed config file parsing of time specifications to use
	  parseTimeLine().
	- Removed storetoString.c

Changes to squid-1.2.alpha2 ():

	- Merged squid-1.1.9, squid-1.1.10 changes

Changes to squid-1.2.alpha1 ():

	- Unified peer selection algorithm.
	- aiops.c and aiops.h are a threaded implementation of
	  asynchronous file operations (Stewart Forster).
	- async_io.c and async_io.h are complete rewrites of the old
	  versions (Stewart Forster).
	- Rewrote all disk file operations of squid to support
	  the idea of callbacks except where not required (Stewart
	  Forster).
	- Background validation of 'tainted' swap log entries (Stewart
	  Forster).
	- Modified storeWriteCleanLog to create the log file using the
	  open/write rather than fopen/printf (Stewart Forster).
	- Added the EINTR error response to handle badly interrupted
	  system calls (Stewart Forster).
	- UDP_HIT_OBJ not supported, removed.
	- Different sized 'cache_dirs' supported.

==============================================================================

Changes to squid-1.1.10 (April 24, 1997):

	- Require 0 <= multicast ttl <= 128.
	- Changed 'unsigned int inaddr_none' to 'struct in_addr no_addr'.
	- Added debug_trap() if unlocking a StoreEntry which still 
	  has registered clients.
	- Added missing storeUnregister() calls.
	- Fixed storeClientListAdd() bug of adding same FD twice.
	- Fixed reconfigure/SIGHUP to wait 'shutdown_lifetime' seconds
	  after receiving signal (Ron Gomes).
	- Added missing commSetSelect() in icpDetectClientClose()
	  (Mark Treacy).
	- Fixed multicast group member counting bug with fake
	  StoreEntry's.
	- Only enable ICP_FLAG_SRC_RTT if the peer is ICP_VERSION_2.
	- Fixed compiling unlinkd in a separate directory (Assar Westerlund).
	- Fixed comm_select_incoming SEGV for poll() version when using
	  udp_{incoming,outgoing}_address  (Mark Treacy).
	- Fixed some SIGHUP related memory problems with redirectors,
	  ipcache, and fqdncache, and peerCountMcastPeers*().
	- Make the unlinkd and pinger programs configurable (Ron Gomes,
	  Neil Murray).
	- Add handshake to unlinkd program (Ron Gomes).
	- Exit if a configured program doesn't exist (Neil Murray).
	- Abort if unlinkd fails to start (Ron Gomes).
	- Added -m option to ftpget for defining default MIME type.
	  (Neil Murray).
	- Optimized comm_select() functions (Mark Treacy).
	- Fixed ipcache_release() to not release locked entries;
	  instead expire them immediately.
	- Fixed up rebuild code to handle swapfile/URL clash
	  cases better.
	- Added safe_inet_addr() to protect from bogus IP addresses
	  (Arjan de Vet).
	- Fixed handling of ssl_proxy and passthrough_proxy when not
	  behind a firewall.


Changes to squid-1.1.9 (March 30, 1997):

	- Fixed aclIpNetworkCompare for USE_SPLAY_TREE; was applying
	  netmask to non-local variable through pointer.  (Ansgar
	  Hockmann).
	- Fixed cachemgr bug incorrectly assigning connect() return
	  value (Nigel Metheringham).
	- Fixed diskHandleWrite bug: not setting write_daemon = PRESENT.
	- Fixed situation where all requests would be handled by
	  "single parent" and other peers would never be queried
	  again.
	- Fixed ftpget bug causing program to continue after printing
	  usage.
	- Changed 'reference_age' to be the maximum for the dynamcially
	  computed value (Mark Treacy).
 	- Added external 'unlinkd' process to unlink swap files.
	- Added more dnsserver status information to cachemgr output.
	- In httpReadReply: extend FD lifetime only after successful
	  read, not every read.
	- In httpBuildRequestHeader: link size of 'ybuf' to MAX_URL.
	- Added routines to count number of members of each multicast
	  peer.
	- Fixed multicast ICP bug causing unnecessary timeouts.
	- Added error messages if setuid/setgid functions fail.
	- Added non-POSIX tempnam.c replacement for NeXTStep (Gerben
	  Wierda).
	- Removed redundant file:// --> ftp:// check (Willy TARREAU).
	- Removed check for reply->code == 200 in icpGetHeadersForIMS().
	- Fixed IP cache bug which caused 'dns_children 0' to break;
	- Deny access to dangerous TCP ports (7, 9, 19).
	- Removed single-line functions: fdstat_biggest_fd(),
	  comm_get_fd_lifetime(), comm_get_fd_timeout().
	- Removed storeCheckExpired() from storeGetSwapSpace() as
	  likely cause of slowing down cache when exceeding the high
	  water mark.
	- Fixed storeCheckExpired() to not always check the
	  LRU expiration age (Mark Treacy).
	- Lowered 'store_objects_per_bucket' to 20 so that
	  storeMaintainSwapSpace() runs frequently enough to 
	  keep up with incoming objects.
	- Fixed FTP to use the Authorization header only when the
	  usernames match.
	- Fixed another continuation-lines-not-starting-with-NNN bug
	  in ftpget.
	- Added 'client_db' config option to disable keeping statistics 
	  for each client address.
	- Added support for using ICMP data stuffed into ICP replies
	  for peer selection algorithm.  Enable with 'query_icmp'
	  in squid.conf.
	- Fixed net_db design bug where _net_db_peer structures pointed
	  to 'peer' structures that get freed and reallocated during a
	  reconfigure.
	- Moved comm.c fd_lifetime[] array into FD_ENTRY structure.
	- Cleaned up storeCopy().  debug_trap on requested offset <
	  e_lowest_offset.
	- Cleaned up fdstat_init() and fdstat_update().
	- Cleaned up ftp_login_parser().

Changes to squid-1.1.8 (March 3, 1997):

	- Fixed neighborsUdpAck() coredump bug for source-ping and
	  non-peer ICP replies.
	- Prevent ipcache_gethostbyname from changing an IP_DISPATCHED
	  entry to IP_CACHED; fqdncache too.
	- Made send_announce non-blocking.
	- Force release of negative-cached objects upon receipt of
	  no-cache request.
	- Ignore ACLs which fail to parse.
	- Added 'proxy_auth_ignore' regular expression list (Andreas
	  Lamprecht).
	- Changed how failed TCP connections affects peer up/down
	  status.  Now retry TCP connections at regular intervals in the
	  background and don't mark the peer as 'up' until a connection
	  succeeds.
	- Okay to increase FD_SETSIZE on FreeBSD 2.2.x (Peter Wemm).
	- Fixed HTTP anonymizer bug in 'standard' mode.
	- Fixed aclMatchDomainList() coredump for unresolvable addresses.
	- Changed default disk low/high water marks to 90/95%.
	- Prevent ftpget buffer overflow (Riku Saikkonen).

Changes to squid-1.1.7 (February 25, 1997):

	- Fixed non-default port numbers for FTP URLs (John Saunders).
	- Fixed urlParse to leave trailing slashes on FTP URLs.  Although
	  stripping the slashes offers a slight hit rate increase, it
	  breaks some proxies which return HTTP redirects.
	- Initialize struct tm in parse_rfc1123() (Henrik Hempelmann).
	- Fixed parseHttpRequest() to use memcpy instead of strncpy;
	  caused POST's with NULL bytes to fail (Joe Ramey).
	- Fixed another HTTP reply code 0 bug (Neil Murray).
	- Changed code structure in ipcache_nbgethostbyname() to
	  maybe get around some trashed-stack problems.
	- Added WARNING if blocking gethostbyname() gets called.
	- Fixed calling commSetSelect() with FD < 0 bug in ssl.c and
	  pass.c.
	- Moved 'append_domain' operation to urlParse().
	- Fixed too many arguments bug in diskHandleWrite, caused
	  coredumps when write fails (due to full disk).
	- Fixed extra unlocking on partial reads from dnsservers.
	- Fixes for 'Splay' trees in acl.c (Ed Knowles)
	- Support for balanced binary trees in acl.c (Arjan de Vet).
	- Made HTTP anonymizing a standard feature and settable in
	  squid.conf (disabled by default).
	- Ignore ICP_MISS replies from multicast-responding parents
	  which would violate the domain restrictions.
	- Fixed another diskHandleWrite coredump bug when freeing
	  list of pending blocks.
	- Added support for 'src' ACLs in cache_host_acl lines.
	- Fixed ftpget bug when PASV connect times out.
	- Fixed adding duplicate IP cache entry for failed BLOCKING lookups.
	- Changed peer IP addresses (for ICP) to be refreshed every hour.
	- Accomodated Solaris bug requiring suid privs for getrusage()
	  (Arjan de Vet).

Changes to squid-1.novm.6 (February 7, 1997):

	- Merged squid-1.1.6 changes.

Changes to squid-1.1.6 (February 7, 1997):

	- Fix redirector to make sure the redirector child process is 
	  is alive and not busy before using it (Brent Foster).
	- Fixed ACL joining bug.
	- Fixed up support for multicast; see Release Notes for 
	  details.
	- Fixed ftpget to properly handle multi-line replies that
	  don't begin with "NNN-".
	- Changed store maintenance to randomize bucket order
	  each time after completion.
	- Set RLIMIT_VMEM to the maximum.
	- Syntax change: "edge" to "peer" everywhere.
	- Change redirector stats to also show number of rewritten
	  requests (Andrew Humphrey).
	- Changed HTTP anonmyizing to remove 'denied' headers
	  by default.  Define USE_PARANOID_ANONYMIZER to only pass
	  'allowed' headers instead (Bernd Ernesti).
	- Added 'Splay' trees (in #ifdefs) for fast IP access checking
	  (Ed Knowles).
	- Fixed 'COMM_INPROGRESS' typo bug (Balint Nagy Endre).
	- Added support for PURGE method to remove cached objects.
	- Upgraded scripts/check_cache.pl for v1.1 (Bertold Kolics).
	- Fixed announcement file descriptor leak (Balint Nagy Endre).
	- Fixed [^0-9] sscanf bug for some compilers (Jim Carroll).
	- Upgrade to autoconf-2.12
	- Added 'dns_defnames' option to allow dnsserver to interpret
	  single-component hostnames.
	- Refuse to run as root without defining 'cache_effective_user'.

Changes to squid-1.novm.5 (February 6, 1997):

	- Fixed stuck objects (and FD leak) due to not unlocking
	  objects in storeAbort().
	- Merged squid-1.1.5 changes.

Changes to squid-1.1.5 (January 22, 1997):

	- Fixed ACL parsing to join ACL entries with the same name
	  (Markus Stumpf).
	- Fixed BIT_SET/BIT_TEST typo in getDefaultParent() (Ed Knowles).
	- Removed comm_read() and commHandleRead().
	- Fixed rotating special files (Kolics Bertold).
	- Fixed sending HTTP reply code 0 in error messages.
	- Fixed ftpget to recognize 'NetWare' servers and skip whitespace
	  before filenames.
	- Changed ftpget default Content-Type to application/octet-stream.
	- Added .rpm MIME type (Nigel Metheringham).
	- Changed storeDirClean() to create missing directories.
	- Removed icpState->buf and storeCopy() call in icpGetHeadersfForIMS().
	- Fixed *_ip_list parsing bug (Hiroyuki Inoue).
	- Fixed bad comm_write() calls in passStart() and sslStart()
	  (Martin Boening).
	- Changed storeMaintainSwapSpace() to scan hash table buckets in
	  random order.
	- Added dynamic LRU Age expiration feature.  Expiration age is
	  calculated as a function of store_swap_size so that object
	  deletion rate matches the addition rate and we avoid emergency
	  object purge mode.

Changes to squid-1.novm.4 (January XX, 1997):

	- Fixed storeRegister loop in icpHandleIMSReply().
	- Merged squid-1.1.4 changes.

Changes to squid-1.1.4 (January 13, 1997):

	- Created USE_GNUREGEX define to fix forcing GNU regex on 
	  Solaris and NeXTStep.
	- Changed SQUID_MAXFD to be a C variable.
	- Added QUICKSTART file.
	- Fixed ident so the identd request comes from the same IP
	  address as the original connection was made to (Russell
	  Street).
	- Added '!' condition feature for the 'firewall_ip' list
	  (Hiroyuki Inoue).
	- Added 'udp_hit_obj_size' option (Mark Treacy).
	- Fixed cachemgr.cgi to print 'NEVER' instead of '27Y ago'.
	- Fixed finding FTP end-of-transfer marker in the middle
	  of the file.
	- More ipcache fixes for long-pending requests which get preempted.
	- Fixed cachemgr.cgi to parse password from URL (Peter Wemm).
	- Fixed cachemgr.cgi to keep password in HTML form field (Peter
	  Wemm).
	- Fixed reporting Maximum Resident Size (Peter Wemm).
	- Handle unexpected data from a redirector (Brent Foster).

Changes to squid-1.novm.3 (January 7, 1996):

	- Merged squid-1.1.3 changes.

Changes to squid-1.novm.2 (January 7, 1996):

	- Mega changes to make Squid not store objects in VM.

Changes to squid-1.1.3 (January 7, 1997):

	- Changed inet_addr("X") to inet_addr("255.255.255.255")
	  (Dan Riley).
	- Fixed matchInsideFirewall() bug when using 'firewall_ip' but
	  not 'inside_firewall' (Tai Jin).
	- check for text == NULL in icpSendERROR().
	- Don't make inaddr_none static in ftpget.c (Davide Migliavacca).
	- Fixed ipcache FMR bug for long-pending requests.
	- Fixes for NeXTSTEP 3.3 (Tethpub Znek).
	- add storeWriteCleanLog() call in fatal().

Changes to squid-1.1.2 (December 18, 1996):

	- Fixed (negative) caching of HTTP objects witch consist of
	  only some HTTP headers.
	- Fixed up SSL neighbor selection algorithm to be just
	  like the one in pass.c.
	- Fixed incorrect squid.conf comment about setting an objcache
	  password to 'none'.  Added keyword 'disable' to disable an
	  objcache function (Markus Gyger).
	- Further Cache.Announce.on fixes (Ernest Yik).
	- Add theOutIcpConnection to comm_select_incoming() for improved
	  ICP performance (Stewart Forster).
	- Added access.log documentation to Release-Notes-1.1.txt
	- Added support for TRACE method.
	- Added 'log_icp_queries on|off' to config (David Luyer).
	- Added hierarchy tag to common HTTP format access.log (David Luyer).
	- Moved second SQUID_MAXFD/FD_SETSIZE check to after #includes.
	- Added reverse DNS lookups for 'dstdomain' ACLs when the URL
	  contains an IP address.
	- Made HTTP reply header parsing more robust to deal with
	  bad 304 replies from squid-1.1.beta27 and earlier.
	- Changed reqnum passed in ICP replies to encode request method
	  in high byte.
	- Fixed neighbor round-robin bug (Uwe Doering).
	- Calculate accurage percentages for ICP and HTTP requests in
	  cachemgr 'client list'.
	- Fixed refresh lm-factor calculations to allow percent = 0.
	- Make sure DNS lookups don't remain PENDING for a very long time.

Changes to squid-1.1.1 (December 15, 1996):

	- Fixed announcement bug.  Announcements were always off unless
	  a file was specified.
	- Fixed wrong number of args to examine_select() debug.
	- Fixed null-string content-type
	- Don't cache replies with 'Set-Cookie:' headers.
	- Fixed bug when client issues IMS, Squid has stale object and
	  Squid's lastmod time is greater than the client IMS time.
	  A 304 reply would be appropriate for Squid, but not the client
	  (diagnosed by Mark Treacy).
	- Fixed httpBuildRequestHeader() content length bug which breaks for
	  really large POST requests (Takahiro Yugawa).
	- Fixed 'passthrough_proxy' to pick up port number from list of
	  neighbors.
	- Ensure pid file is world-readable if umask is set otherwise
	  (Doug Urner).
	- Collect statistics on a few more HTTP headers (Ed Knowles).

Changes to squid-1.1.0 (December 6, 1996):

	- Fixed inequality bug in neighborUp().
	- Fixed off-by-one ack_deficit bug in neighborUp() (Joe Ramey).
	- Fixed pfds[] ABW bug for USE_POLL (Joe Ramey).
	- Added anonymizer options; compile with USE_ANONYMIZER (Lutz
	  Donnerhacke).
	- Added Gauntlet proxy support to ftpget (Mukaigawa Shin'ichi).
	- Changed UDP_HIT_OBJ to be disabled by default.
	- Updated doc/Release-Notes-1.1.txt

==============================================================================

Changes to squid-1.1.beta28 (December 5, 1996):

	- Fixed missing CR on Not-Modified replies (Balint Nagy Endre)
	- Fixed not truncating multi-word content-types.
	- Fixed ABR bug due to too-small redirector buffers.
	- Fixed ABR in httpBuildRequestHeader().
	- Removed asynch_io code.

Changes to squid-1.1.beta27 (December 4, 1996):

	- Fixed wrong number of args to debug().
	- Make failure to start any dnsservers fatal.
	- Fixed dnsGetFirstAvailable() to skip dead dnsservers.
	- Fixed loop detection for two squids on the same host (Mark
	  Treacy)
	- Fixed strcasecmp bug which broke some POST requests.

Changes to squid-1.1.beta26 (December 3, 1996):

	- Another 'rm -rf' fix for store.c (Bernd Ernesti).
	- Use of the Host: header for httpd_accel requests is now
	  disabled unless 'httpd_accel_uses_host_header' is set.
	- Have configure check for libgnumalloc.a.
	- Added support for using poll() instead of select(); enable
	  USE_POLL_OPT in src/Makefile (Stewart Forster, Anthony
	  Baxter).
	- Fixed httpBuildRequestHeader() 'strcat' bug (Andres Kroonmaa).
	- Changed store.log to include date, last-modified, and
	  expires timestamps, plus content-type.
	- Added content-type to access.log too.
	- parse HTTP timestamps directly in httpParseReplyHeaders().
	- moved timestampsSet() to storeTimestampsSet().
	- fixed ACL '/32' bug (Ansgar Hockmann).

Changes to squid-1.1.beta25 ():

	- Check if we should delete-behind large objects when above LOW
	  water mark.
	- Merged request header parsing code from http.c and pass.c
	  into httpBuildRequestHeader().
	- Fixed 'rm -rf' command in store.c.
	- Changed viz_hack stuff to use multicast.

Changes to squid-1.1.beta24 ():

	- Added 'cache_stoplist_pattern' to squid.conf
	- Remove trailing slashes from FTP URLs.
	- Added 'passthrough_proxy' support.
	- Added "default parent" support with a 'default' option for
	  cache_host config line.
	- Upgraded autoconf to 2.10.
	- Strip Proxy-Connection request headers.
	- Do not return UDP_HIT for objects which will soon be stale.
	- Parse/Filter HTTP request headers in passthrough module.
	- Fixed parsing hostnames with dashes in 'src' ACLs.
	- Added warning message when forwarding loops detected.
	- Split getSingleParent() into getSingleParent() and
	  neighborsCount().
	- Dont check sibling caches for REFRESH requests.
	- Add X-Forwarded-For: header which is the comma-separated
	  list of client addresses along the request path.
	- Fixed icpDetectClientClose() to check if Content-Length
	  bytes have been delivered.

Changes to squid-1.1.beta23 (November 25, 1996):

	- Fixed "viabuf" memory leak.

Changes to squid-1.1.beta22 (November 25, 1996):

	- Fixed xstrncpy() bug in mime_get_header().
	- Fixed Via: header.
	- Fixed Host: header for proxy requests.
	- Fixed re-initializing client_db and net_db hash tables upon
	  SIGHUP (Cord Beermann).
	- Mucked with regex stuff so HP users don't have to put up with
	  GNUregex (Markus Gyger).
	- Changed SQUID_MAXFD back to FD_SETSIZE.
	- Fixed checking Max-age in httpSendRequest().
	- Made failure to fork ftpget fatal.
	- Call *FreeMemory() routines only if debugging.

Changes to squid-1.1.beta21 (November 22, 1996):

	- Fixed setting entry->timestamp for NOT MODIFIED replies.
	- Changed old HTTP/1.1 Forwarded: header to new Via:.
	- Fixed needlessly calling storeSwapFullPath() in
	  storeSwapOutHandle() (Mark Treacy).
	- Simplified hash linking (Mark Treacy).
	- Write pid_filename by default (Markus Gyger).
	- Changed "Invalid dnsserver output" to non-fatal debug_trap()
	  (Joe Ramey).
	- Changed STORE_IN_MEM_BUCKETS to the prime 229 (Neil Murray).
	- Changed FD_SETSIZE to SQUID_MAXFD (Jonathan Larmour).
	- Strip :port from Host: header if present.
	- Reschedule fqdncache_dnsHandleRead() to prevent dnsservers
	  from getting stuck (Makoto Ishisone).
	- Fixed handing SSL requests inside firewalls (Akira Sato).
	- Fixed passthrough neighbor selection bug (Akira Sato).
	- Removed 'post_buf' stuff from http.c.

Changes to squid-1.1.beta20 (November 17, 1996):

	- Changed neighbor_domain_type to neighbor_type_domain in
	  squid.conf.
	- Changed all 'xstrerror' debug messages to section 50.
	- More const fixes (Markus Gyger).
	- Added xstrncpy() which null-terminates (Markus Gyger).
	- Fixed Cache-Control counting in HTTP reply header stats.
	- Relocated rfc1738_unescape() calls in ftpget so that
	  ftp://foo.org/%2fbar/ works (Jonathan Larmour).
	- Fixed forwarding loop for a pair of neighbors behind a firewall.
	- Cleaned up ftpget non-blocking flags (Jean-Hugues ROYER).

Changes to squid-1.1.beta19 (November 13, 1996):

	- Fixed havoc-wreaking getsockname() bug (Noriyuki Soda
	  <soda@sra.co.jp>).
	- Fixed InvokeHandlers() debug_trap bug.
	- Lock entry while calling swapin handler in case someone tries to
	  release it.
	- Changed configure to allow overriding of XTRA_LIBS in config.site.
	- Fixed comm_accept() FMR bug.
	- Replaced MemObject->fd_of_first_client structure member with
	  storeFirstClientFD() function.

Changes to squid-1.1.beta18 (November 13, 1996):

	- Fixed 'void *buf' bug icpCreateMessage() (Jean-Hugues ROYER).
	- Fixed more NULL 'friends' bugs.
	- Added debug_trap for NULL mem->clients in InvokeHandlers()
	  (Mark Treacy).

Changes to squid-1.1.beta17 (November 12, 1996):

	- Fixed NULL friends coredump in neighbors_open().
	- Added setting HAVE_TEMPNAM back to the configure script.
	- Fixed h_errno bug on NeXTStep (frank@langen.bull.de).
	- Fixed expiresMoreThan() bug causing all UDP_MISS replies.
	- Changed 'background.c' to 'event.c' and merged all periodic
	  functions into an event queue.
	- Renamed httpParseHeaders() to httpParseReplyHeaders().
	- Added support for sending HTTP/1.1 'Cache-Control: max-age=X'
	  in requests.  The max-age value is taken from the
	  'refresh_pattern' rules.
	- Added support for parsing max-age in client request.
	- Split icpUdpSend() into simpler icpUdpSend() plus
	  icpCreateMessage().
	- Force storeAbort() for dispatched objects in
	  asciiLifetimeHandle().
	- Fixed firewall-related bug when the DNS lookup fails.
	- Fixed '#define HAVE_GETRUSAGE' bug (Takahiro Yugawa).
	- Made storeStartDeleteBehind() quiet for 'no-proxy' neighbors.
	- Fixed log_quote() signed/unsigned bug (Ron Gomes).

Changes to squid-1.1.beta16 (November 8, 1996):

	- Fixed type of Config.level{One,Two}Dirs.
	- Fixed calling storeRegister and storeUnregister with NULL a entry.
	- Fixed objcache "squid.conf" request and now require a
	  password for it (Jan.Harkes@cwi.nl).
	- Added check for dotted-quads in matchInsideFirewall()
	  (Andreas Lamprecht).
	- Fixed up some HTTP/1.1 Cache-Control parsing (Ed Knowles).
	- Fixed IP ACL memset() bug when -DPURIFY=1.
	- Resurrected storeEntryValidToSend().
	- Moved storeSetPrivateKey() calls to storeReleaseRequest().
	- Added separate config line (neighbor_type_domain) for modifying
	  neighbor type (parent vs. sibling) for certain domains.  Adding
	  it to cache_host_domain doesn't provide needed flexibility.
	- Added User-Agent log patch (Joe Ramey).
	- Added httpd-accel Host: patch (Miguel A.L. Paraz).
	- Changed ident lookup stuff to require the lookup before
	  checking ACL's.  If you have 'ident_lookup on' then this
	  may cause noticable delay while waiting for the ident
	  lookup.
	- Fixed storeSwapOutHandle() FMR bug.
	- Stopped inserting incorrect Host: header for proxy-HTTP requests.

Changes to squid-1.1.beta15 ():

	- Fixed entry->clients[].fd initialization bug causing all
	  large objects to get stuck.
	- Changed /www.nlanr.net/Squid/ to /squid.nlanr.net/Squid/.

Changes to squid-1.1.beta14 ():

	- Added pw_encrypt() check to configure.
	- Added 'cache_stop_relist' for a regular expression based
	  stoplist.
	- Fixed checkRefresh() to not cause IMS request for objects
	  which have not yet expired, but are past the LM-factor.
	- Fixed asciiConnLifetimeHandle() to force storeAbort() for
	  pending objects.
	- Made lots of variables and args 'const' (Markus Gyger).
	- Added cachemgr password support in squid.conf (Yaroslav M.
	  Levchenko).  Each cachemgr operation may have a separate
	  password.  Shutdown and all "log" operations must be
	  password-protected.
	- Removed debug_trap() calls in squid_error_entry().
	- Removed InvokeHandlers() call from StoreAbort().
	- Added icpHandleAbort() to deliver abort messages, if at all.
	- Added passthrough module (pass.c) for POST, et. al.
	- Fixed purify bugs in storeCloseLog() and storeSwapInHandle().
	- Merged store 'pending list' into 'client list.'
	- Made number of first- and second-level swap directories
	  configurable (Ralph Loader).

Changes to squid-1.1.beta13 (November 1, 1996):

	- Fixed base64_code[] typo bug (Joe Ramey).
	- Fixed errors being returned as empty objects.
	- Changed order of sanity checks in neighborsUdpAck().
	- Made swap log pathname configurable with 'store_swap_log'.
	- Made 'http_accel virtual 80' same as -V on command line.
	- Fixed string termination bug in base64_decode() (Joe Ramey).

Changes to squid-1.1.beta12 (October 31, 1996):

	- Fixed ICMP 'pinger' failure detection.
	- Fixed handling of no-cache for negative-cached objects.
	- Replaced protoUnregister() call in icpDetectClientClose().
	- Fixed calling storeReleaseRequest() on unlocked objects.

Changes to squid-1.1.beta11 (October 29, 1996):

	- Fixed rfc1123() to use actual RFC1123 time format.
	- Made Store Hash parameters configurable
		- store_objects_per_bucket
		- store_avg_objects_size
	- Fundamental changes to object TTLs; now think in terms of
	  refresh times.  Replaced 'ttl_pattern' with 'refresh_pattern'.
	- Dropped 'http', 'ftp', and 'gopher' config options.
	- Added a single 'maximum_object_size' value.
	- Moved storeStartDeleteBehind() calls from http/ftp/gopher to
	  storeAppend().
	- Moved storeClientListAdd() call from store to client/icp
	  because of storeClientCopy() race condition between IMS
	  replies and objects in delete behind mode.
	- renamed TCP_EXPIRED* to TCP_REFRESH*.
	- Stopped appending error messages to partially delivered
	  objects.
	- Removed protoUnregister() call in icpDetectClientClose()
	  as probable cause of storeReleaseRequest() warnings.
	
Changes to squid-1.1.beta10 (October 24, 1996):

	- Fixed neighborsUdpAck() coredump bug and made debug messages
	  more consistent.
	- Removed old REQ_ACCEL test (Miguel A.L. Paraz)
	- Fixed process RSS value for SGI (Ed Knowles).
	- Fixed parseAddressLine() to use gethostbyname(3) because
	  its called before ipcache_init(). (Miguel A.L. Paraz)
	- Fixed announce bug since beta7 causing caches to be announced
	  regardless of 'announce_to' setting.  (Paul Southworth)
	- Fixed pinger 'last_check_time' bug.
	- Changed storeEntry->flag and storeEntry->refcount back to
	  32-bit ints.
	- Removed extra "\r\n" for abort error messages.
	- Numerous hash fixes from Mark Treacy.
	- Renamed rfc850 to rfc1123.
	- Changed storeRelease to not make recursive call for HEAD
	  objects.
	- Changed return value semantics of storeRelease().

Changes to squid-1.1.beta9 (October 21, 1996):

	- Added 'make depend' target to Makefiles.
	- Fixed changing the wrong instance of 'opt_catch_signals'
	  in tools.c for beta8.
	- Fixed xmemcpy macros in include/config.h (Ed Knowles).
	- Fixed logging of "TCP_EXPIRED_MISS/304."

Changes to squid-1.1.beta8 ():

	- Added client_db.c; keeps stats on clients, use cachemgr
	  to view client list.
	- Stop sending ICP_OP_DENIED to clients if 95% of their
	  queries are denied (then they'll think we're dead).
	- Fixed objects getting stuck in VM when handling aborted
	  requests in icpHandleIMSReply().
	- If IMS verification fails, send the old object and log it
	  as TCP_EXP_FAIL_HIT.
	- Added Host: header to HTTP requests.
	- Disable dnsservers with 'dns_children 0' in the config file.
	- Disable ftpget with 'ftpget_program none' in the config
	  file.  Also ftpget is disabled for http_accel mode.
	- Changed cachemgr stats/objects listing format.
	- Added some missing "entry->refcount++"
	- Changed StoreEntry->timestamp to be the last verification time.
	  (was the stored-on-disk time).
	- Fixed stuck objects from "304 Not Modified" responses without
	  final blank line.
	- Added failure detection to icmpRecv().
	- Fixed backwards logic in debug_trap().
	- Fixed neighbor caches remaining in 'DEAD' state.  Reorganized
	  handling ICP replies so neighborsUdpAck gets called for
	  most every reply.

Changes to squid-1.1.beta7 (October 14, 1996):

	- Combined and renamed comm_set_select_handler() functions.
	- Fixed netdbPingSite() not checking n->next_ping_time.
	- Fixed acl.c to use regular gethostbyname() because IP cache
	  isn't initialized while reading config file.
	- Linked ftpget with debug.o and removed lib/debug.c,
	  lib/log.c.
	- Fixed matchDomainName() coredump for late ICP packets.
	- Removed date string from syslog messages.
	- Fixed ftpget BASE HREF.
	- Fixed pinger to check squid socket every 10 seconds.

Changes to squid-1.1.beta6 ():

	- Fixed lots of function prototypes, etc (Ed Knowles).
	- Added multicast patch (Martin Hamilton).
	- Replaced 'struct hostent' with 'struct ipcache_addrs' in IP
	  cache.
	- Added ipcacheCycleAddrs() to round-robin IP addresses.
	- Added ipcacheRemoveBadAddr() to remove addresses from failed
	  connect()'s.
	- Changed comm_connect() to comm_nbconnect() and removed other
	  nonblocking connection handling code from other modules.
	- Improved cache memory usage.  Now cache_mem specifies the
	  size of the in-memory data pool.  Hot objects use whatever
	  space is not used by in-transit objects.
	- Removed 'max_hot_object_size' config option.
	- Fixed virtual-host coredump bug (Aaron Hopkins).

Changes to squid-1.1.beta5 (October 7, 1996):

	- Fixed coredump in storeFreeMemory().
	- Fixed displaying repeated IP addresses in IP cache contents.
	- Added parent/sibling modifiers to cache_host_domain lines.
	- Added 'miss_access' to restrict fetching HTTP MISS requests.
	  Use this to force your peer caches to use you as a sibling and
	  not as a parent.
	- Added browser ACL patch (Carson Gaspar).
	- Added reading ACLs from file patch (Arjan de Vet).
	- Squid-1.0 changes up to 1.0.18.
	- Added release/cleanup functions to net_db.c.
	- Added 'minimum_direct_hops' config option.

Changes to squid-1.1.beta4 (September 26, 1996):

	- Fixed coredump in icpStateFree() when calling
	  checkFailureRatio().
	- Added more stuff to net_db.c.
	- Fixed memory leak in stat_ipcache_get().
	- Changed __P back to _PARAMS.
	- Fixed authorization parsing bug in ftp.c (Yoichi Shinoda).
	- Allow ICP socket on priveledged ports.
	- Added trap for STORE_PENDING objects when lock_count == 0.
	- Replaced 'cache_hot_vm_factor' with 'max_hotvm_obj_size'.
	- Moved ICMP socket to external 'pinger' program.
	- Moved tvSubMsec() to lib/util.c.
	- Moved accessLogTime() to debug.c.
	- Fixed handling of race condition in icpHandleIMSReply().
	- Fixed "\r\n\0" bug in gopherSendRequest();
	- Fixed cachemgr output for non-table browsers (Cord Beermann).
	- Moved accept() for dnsserver into Squid.
	- New SVR4 config stuff in contrib directory (Markus Gyger).
	- Includes squid-1.0 changes up to 1.0.17.
	- Fixed storeWriteCleanLog() bug which caused released objects
	  to be kept.
	- Added *FreeMemory() routines.

Changes to squid-1.1.beta3 (September 16, 1996):

	- s/()/(void)/
	- Fixed 8k page leak in icmpRecv().
	- Use strerror() if available instead of sys_errlist[].
	- Misc ANSI-related cleanup.
	- Added 'cache_stoplist' to specify things which should
	  never get saved to disk.
	- Merged some parsing routines into parseWordlist().
	- Fixed icpHandleIMSReply() bug when HTTP reply headers
	  received in multiple reads.
	- Changed all ipcache_nbgethostbyname() handler functions
	  to be void.
	- Fixed bug when storeLockObject() fails for UDP_HIT_OBJ
	  replies.
	- Simplified storeGet().
	- Removed meta_data.hash_links member.
	- Includes squid-1.0 changes up to 1.0.16.
	- s/__STRICT_ANSI__/__STDC__/g

Changes to squid-1.1.beta2 (September 12, 1996):

	- Switched to ANSI style coding.
	- Fixed UDP_HIT_OBJ objects ignoring 'proxy-only' setting.
	- Added setting cachemgr.cgi fields from query string
	  (Neil Murray).
	- Split log type TCP_IFMODSINCE into TCP_IMS_HIT and
	  TCP_IMS_MISS
	- Replaced proto_hit() and proto_miss() with proto_count()
	  which looks at log_type argument to calcultate hits
	  and misses.
	- Split CacheInfo into HTTPCacheInfo and ICPCacheInfo.
	- Placed call to proto_count() just after log_append()
	  so we only need it in one place.
	- Made a lot of proto.c functions static and added prototypes.
	- Fixed icpProcessRequest() bug.  Need to check EXPIRED
	  before IMS.
	- Fixed aclDestroyDenyInfoList() to NULL free'd lists.
	- Fixed storeDirClean() to unlink files which should be
	  directories (Cord Beerman).
	- Added ICMP support.  Source ping will use ICMP packets if
	  compiled with -DUSE_ICMP=1 and started with root privleges.

Changes to squid-1.1.beta1 (September 12, 1996):

	- Fixed stupid coredump bug in storeGetSwapSpace().
	- Cleaned up gopher.c; prototypes, make functions static, etc.
	- Added READ_DEFERRED entry flag.  Only extend lifetime when
	  first entering deferred mode.
	- Added debug_trap() to replace some fatal_dump()'s.  Now use
	  debug_trap for non-fatal errors.  If -C option is set,
	  then debug_trap is the same as fatal_dump.

Changes to squid-1.1.alpha18:

	- Fixed storeCheckPurgeMem() to both 'purge' *and* 'release'
	  objects as needed. 
	- Fixed up RWStateCallbackAndFree() to prevent it from getting
	  called twice.
	- Added 'deny_info' support for redirecting denied requests to
	  a specific URL (maex@space.net).  
	- Fixed protoUnregister() to not abort objects being swapped in.
	- Fixed parent-stays-dead-bug by removing PING_WAITING
	  check in icpHandleIcpV?().
	- Changed debug log timestamp format.
	- Fixed coredump-causing bugs in icpHandleIMSReply().
	- Fixed FMR bug in neighborsUdpAck() for UDP_HIT_OBJ replies.
	- Fixed up InvokeHandlers() to clear handler before calling.
	- Added -k signal option to signal a running Squid (Markus Gyger).
	- Removed dynamic_array code.

Changes to squid-1.1.alpha17:

	- Added more IMS support.  Now Squid issues IMS requests for
	  expired objects in the cache.  Log type will be either
	  TCP_EXPIRED_HIT if the server sends "304 Not Modified" or
	  TCP_EXPIRED_MISS if the server send a new object.
	- Added Config.expireAge and 'expire_age' to config.
	- Fixed storeGetMemSpace() bug; need to check
	  storeCheckPurgeMem() instead of storeEntryLocked().
	- Renamed icp_hit_or_miss() to icpProcessRequest().
	- Changed mkrfc850() to use normal variable instaed of a
	  pointer.
	- Removed store_entry member from fd_table[] in comm.h.
	- Changed httpSendRequest to not tack Squid onto the 'User-Agent'
	  line, Use HTTP/1.1 'Forwarded' instead.
	- Removed icpProcessHIT() which only called icpSendMoreData().
	- Removed icpProcessIMS() which only called icpGetHeadersForIMS().
	- Removed some 'Reset header fields for reply' crap.
	- added old_entry member to icpStateData for handling IMS
	  requests.
	- Added 'locks' member to ipcache_entry; need to lock an
	  ipcache entry during ipcache_call_pending().
	- Removed ipcache_call_pending_badname().
	- Cleaned up setting/clearing IP_LOOKUP_PENDING bit.
	- Removed storeEntryLocked() trap in storePurgeMem().
	- Added storeCheckExpired().
	- Removed storeWalkThrough() and removeOldEntry(), changed
	  storePurgeOld() to do the walking through instead.
	- Added storeConfigure() so HUP signal affects store_swap size.
	- Replaced some parsing functions with parseMinutesLine().
	- Added StoreEntry flag bit ENTRY_NEGCACHED.
	- Added storeNegativeCache().

Changes to squid-1.1.alpha16:

	- Fixed ipcache TTL bug from new ipcache_parsebuffer().
	- Copied recent ipcache.c changes to fqdncache.c
	- Copied icpHandleIcpV2() fix to icpHandleIcpV3().
	- incorporate squid-1.0.12 changes.

Changes to squid-1.1.alpha15:

	- Removed 'bad swap_status' trap in icpHandleIcpV2.
	  Now skip ICP replies for StoreEntry's with ping_status
	  != PING_WAITING.
	- Fixed numerous compiler problems.

Changes to squid-1.1.alpha14:

	- Fixed ENTRY_DISPATCHED bug.  ENTRY_DISPATCHED was not always
	  getting set (e.g. for requests matching hierarchy_stoplist).
	  This could cause multiple calls to storeAbort() for the same
	  entry.
	- With ENTRY_DISPATCHED now fixed, call squid_error_entry()
	  from protoUnregister() for StoreEntries which have not
	  been dispatched.
	- Fixed 'quick_abort' parsing bug.
	- NULL terminate too-long URL strings in urlParse().  Still
	  need fix to somehow handle these.
	- Added shadow password patch from John Saunders
	  <johns@rd.scitec.com.au>
	- Added _dns_ttl_ hack from bne@CareNet.hu to get real TTL
	  values from DNS queries.  See Release-Notes-1.1.txt for more
	  info.
	- Added better '304 Not Modified' reply from Jaeyeon Jung
  	  <jyjung@cosmos.kaist.ac.kr>.
	- Rewrote ipcache_parsebuffer().
	- Fixed stupid clientProxyAuthCheck() bugs.
	- Made IP cache size configurable with 'ipcache_size'.
	- Fixed bug parsing 'cache_swap_low'.
	- Added -b option to ftpget to limit data transfer rate
	  (bytes/sec).  Specify on 'ftpget_options' in config file.
	- Miscellaneous filedescriptor management cleanup.
	- Renamed function getFromCache() to protoStart().
	- Added delays when forking dnsservers, redirectors, and
	  ftpget.
	- Includes 1.0 changes up to 1.0.11.

Changes to squid-1.1.alpha13:

	- oops, there was no alpha13.

Changes to squid-1.1.alpha12:

	- Rewrote storeGetMemSpace().
	- Fixed hot_vm accounting; only count objects which are added
	  to the IN_MEMORY table.
	- Changed protoUndispatch() to never call squid_error_entry().
	  Should fix storeSwapOutHandle() and 'HELP! Someone is
	  swapping out a bad entry' coredumps.
	- Report all error pages to the debug log.
	- Added -i option which forces IP cache entry to be invalidated
	  just after an object retrieval begins.
	- Includes all squid-1.0 changes up to squid-1.0.10.
	- Added patch from srb@cuci.nl (Stephen R. van den Berg) for
		- ttl_force_pattern
		- quick_abort min pct max
	- Added a proxy authentication patch from Jon Thackray
	  <jrmt@uk.gdscorp.com>.  Must add -DUSE_PROXY_AUTH=1 to src/Makefile.
	- Cleaned up calling maintenance functions from main().

Changes to squid-1.1.alpha11:

	- Fixed sscanf() bug in storeDirClean()
	- Fixed coredump in squid_error_entry() on Config.errHtmlText.
	- Added redirector stats entry to cachemgr.cgi.
	- Call ipcache_purgelru() during an idle timeout.
	- Changed fqdnFromAddr() to copy inet_ntoa() result into a 
	  static buffer.
	- Fixed storeDirClean() printf format.

Changes to squid-1.1.alpha10:

	- Fixed directory increment bug in storeDirClean().
	- Misc little changes trying to track town random coredumps.
	- Includes all squid-1.0 changes up to squid-1.0.8.

Changes to squid-1.1.alpha9:

	- Fixed parsing of redirected URLs.
	- Changed URL redirection to pass in client address, ident, and method.
	- Fixed NULL pointer coredump in log_append().
	- Don't swap negative-cache objects to disk (storeCheckSwappable())
	- Only purge MemObject if entry is swapped to disk.
	- Includes all squid-1.0 changes up to squid-1.0.7
	- Fixed purify free memory errors in clientAccessCheck().

Changes to squid-1.1.alpha8:

	- Removed all references to hierarchy.log.
	- Changed hierarchy_log_append() to hierarchyNote() and added
	  _hierarchyLogData structure.
	- Fixed "tty input" bug where a reverse lookup request was
	  written to stdout.
	- Cleaned up pointers in protoUnregister().
	- Includes all squid-1.0 changes up to squid-1.0.6.
	- cache_swap 0 is allowed (proxy only server, no swapping), mainly
	  intended for fast maintenance startups where the system already
	  has to be running, but the disk(s) have not been fsck'd yet.
	- quick_abort actually works now
	- quick_abort functionality made conditional
	- ttl_pattern storage wasn't being cleaned upon a reread of
	  the config file (the patterns were added only, got duplicates)
	- ttl_force_pattern a new config option to override the settings
	  of certain pages despite (or because) of enforced low expiry times

Changes to squid-1.1.alpha7:

	- Added 'tcp_recv_bufsize' option to config.
	- Changed NEIGHBOR to SIBLING where appropriate.
	- Split UDP_HIT_OBJ into {PARENT,SIBLING}_UDP_HIT_OBJ
	- Misc casts and cleanup from running Insight.
	- Replaced all get*() functions with direct references to
	  Config structure.
	- Removed 'http_stop', 'ftp_stop', and 'gopher_stop' from config.
	- Added 'ssl_proxy' config for forwarding all SSL requests to
	  another proxy.
	- Includes all squid-1.0 changes up to squid-1.0.5.

Changes to squid-1.1.alpha6:

	- Changed storage manager to use a two level directory
	  structure.  This makes squid-1.1 incompatible with squid-1.0!
	  (Mark Treacy).
	- Added last modification time to the StoreEntry structure, and
	  the swap log.
	- Changed how memory passed to comm_write() gets freed.  Now
	  pass in a free handler function which gets called when the
	  RWStateData structure is destroyed.
	- Other misc cleanup.
	- Added a reverse-address-lookup cache (``fqdncache'').
	- Added support for threaded ACLs for destination IP addresses
	  and source hostnames.
	- Use aclMatchDomainList() instead of aclMatchWord() for domain names.
	- Renamed cachemgr 'stats/general' to 'stats/ipcache'.
	- Added 'log_fqdn' option to config file.
	- Added 'client_netmask' to config file.

Changes to squid-1.1.alpha5:

	- Got Asynchronous I/O stuff to compile and run on IRIX 5.3
	- Cleaned up diskHandleWrite()
	- Added free() handler to struct dwrite_q so diskHandleWrite()
	  can free memory after its been written.
	- Changed file_open() to not allow files to be opened O_RDWR.
	- Changed file_open() to always set O_APPEND for O_WRONLY files.
	- Includes all squid-1.0 changes up to squid-1.0.2.

Changes to squid-1.1.alpha4:

	- Fixed Asynchronous Disk I/O routines to basically work.
	- Fixed memory write bugs when using the redirector.
	- Added support for non-anonymous FTP urls without needing a
	  password in the URL.

Changes to squid-1.1.alpha4:

	- Changed cachemgr detailed filedescriptor info to be a separate item.
	- 'no-cache' reload now discards bad IP cache entries too.
	- Added 'echo request' URL hack:  http://cachehost:3128/echo
	- Added URL redirector feature.
	- Addeed 'ident_lookup' option to config file
	- Fixed http to never rely on blocking IP cache lookups.
	- Removed need for locked IP cache entries.
	- Changed free page stacks to always free pages if more than
	  'max' are allocated.

Changes to squid-1.1.alpha3:

	- Added Asynchronous Disk I/O routines from Pete Bentley.
	  (NOTE, not yet working for IRIX 5.3).
	- Made squid native access log the default format.

Changes to squid-1.1.alpha2:

	- Added support for RFC931/ident

==============================================================================

Changes to squid-1.0.18 (October 7, 1996):

	- Added INADDR_NONE to cachemgr.c for Solaris.
	- Added checks to deal with Harvest Cached neighbors which don't
	  handle Squid's ICP version 2.

Changes to squid-1.0.17 (September 24, 1996):

	- Fixed cachemgr.cgi to handle an arbitrary IP address (Ron
	  Gomes)
	- Fixed syslog() calls to use syslog(X, "%s", buf) (Yoichi
	  Shinoda).
	- Copied ipcache locking stuff from v1.1.
	- Copied httpConnect() from v1.1 for non-blocking DNS lookups.
	- Fixed "\r\n\0" bug in gopherSendRequest();

Changes to squid-1.0.16 (September 16, 1996):

	- Fixed shadow passwd support (John Saunders).
	- Added checkFailureRatio() to detect high fail:success ratios
	  and go into ICP "hit only" mode for 5 minutes when the ratio
	  exceeds 1.
	- Added ip_acl_destroy() to reset 'local_ip' and 'firewall_ip'
	  on HUP signal.

Changes to squid-1.0.15 (September 13, 1996):

	- Fixed stupid bugs from moving icpState->flags to
	  request->flags.

Changes to squid-1.0.14 (September 13, 1996):

	- Added '#if DELAY_HACK' code for Mike Groeneweg
	  <mikeg@scorpion.murdoch.edu.au>.
	- Fixed debug bug in ttlSet().
	- Moved icpState->flags to request->flags.
	- Fixed edgeWouldBePinged() to skip SIBLINGS and NO-CACHE
	  requests.
	- Fixed bad SET/TEST in httpProcessReplyHeader() (Miguel A.L.
	  Paraz).

Changes to squid-1.0.13 (September 12, 1996):

	- Fixed ftpget parsing PASV reply bug (Carson Gaspar).
	- Forced include of <netinet/in_systm.h> for NeXT (Holger
	  Hoffstaette).
	- Promulgate tcp_outgoing_addr to ftpget with -o option (Edward
	  Moy).
	- add Date: header to Squid-generated Gopher objects (Geoffrey
	  Keating).
	- cachemgr.cgi HTML fixes (Cord Beermann).
	- Collapsed some config parsing functions to parseOnOff().
	- Added config option: memory_pools on|off
	- Added config option: udp_hit_obj on|off
	- Added config option: forwarded_for on|off
	- Copied better stmem.c and stack.c routines from v1.1 code.
	- Added support for HTTP/1.1 Cache-Controls 'private' and 
	  'no-cache'.
	- Copied dnsserver "hello/alive" test from v1.1 code.

Changes to squid-1.0.12 (September 3, 1996):

	- Fixed urlCheckRequest() to allow CONNECT/SSL requests.
	- Change default socket send/receive buffers to 16k (in
	  configure) instead of 8k, mainly for Solaris.
	- Fixed urlParse() to remove trailing dots from hostnames.
	- Added 'ttl_pattern/i' config tag for case-insensitive
	  regular expressions.
	- Fixed swapin_complete_handler FMW bug in storeSwapInHandle().
	- Removed 'Invalid object detected' trap in storeValidToSend().

Changes to squid-1.0.11 (August 30, 1996):

	- Fixed ENTRY_DISPATCHED bug.  Now set ENTRY_DISPATCHED
	  only in getFromCache().
	- Added missing newlines to a number of debug messages.
	- NULL-terminate long URL's in urlParse().
	- Changed configure to remove libmalloc for FreeBSD
	- Changed ftpget to assume a single space between date and 
	  filename in Unix sytle listings.
	- Added urlCheck() to check for supported method/protocol
	  combinations and return "501 Not Implemented" when
	  appropriate.
	- Added ftpget check for negative port numbers in PASV
	  reply.
	- Added shadow password support for cachemgr shutdown.

Changes to squid-1.0.10 (August 26, 1996):

	- Fixed INADDR_NONE not being set for ftpget.c.
	- Remove "Connection: Keep-Alive" lines from HTTP requests
	  since Squid doesn't support them.
	- Fixed IP Address/netmask bug.  Now 1.2.3.4/255.255.255.0 is
	  equivalent to 1.2.3.0/255.255.255.0.

Changes to squid-1.0.9 (August 22, 1996):

	- Cleaned up ipcache_purgerlu().
	- Fixed ipcache_gethostbyname() to release expired entries.
	- Added check for numeric addresses to ipcache_nbgethostbyname().
	- Added Date: field to ftpget's HTTP header output.
	- Added temporary hack to httpProcessReplyHeaders() to allow
	  caching of non-HTTP objects fetched from neighbors when
	  the header does not have Date, Expires, or Last-Modified.
	- Added a check for a valid ICP socket before sending ICP
	  queries.
	- Fixed SSL code to unregister DNS lookups if client aborts.
	- Removed lib/host_cache.c from distribution.
	- Made IP cache stats output sorted by last reference.
	- Added ICP internet-draft to docs directory.

Changes to squid-1.0.8 (August 19, 1996):

	- Added ftpget fixes from carson@lehman.com and moy@parc.xerox.com.
	- Fixed -s option to enable syslog logging.
	- Added 'err_html_text' for configurable error messages.
	- Fixed protoDispatchDNSHandle() to not try a direct fetch if
	  host is beyond firewall_ip list.
	- Changed storeDirClean() to handle one directory per call and
	  not keep the dirhandle open between calls.
	- Changed .zip MIME type to "application/x-zip-compressed".
	- Added new 'url_regex' ACL type, regular expression match over
	  the whole URL.
	- Removed xrealloc() call from storeClientListAdd().

Changes to squid-1.0.7 (August 14, 1996):

	- Added "store_clean" routines to periodically remove orphaned
	  swap files.
	- Increased StoreEntry->method_t from 3 to 4 bits, probably fixes
	  storeGenerate*Key() coredumps.
	- Added debugging to examine_select().
	- Added peer address to debugging for Ignored ICP packets.

Changes to squid-1.0.6 (August 12, 1996):

	- Fixed coredump in icpStateFree() for bad requests.
	- Fixed configure bug in determining FD_SETSIZE.
	- Fixed garbage collection to stop if SIGTERM received.
	- Fixed pid file to be written just before 'ready to serve requests'.
	- Fixed CheckQuickAbort() lock_count bug.
	- Fixed setting the hierarchy code for access.log when the 
	  hierarchy.log is disabled.
	- Fixed urlParse() to fail for URLs longer than MAX_URL bytes.
	- Fixed icpDetectClientClose() to detect TCP half-close and
	  not abort the connection.

Changes to squid-1.0.5 (July 25, 1996):

	- Added ICP_OP_RELOADING to be used instead of ICP_OP_DENIED
	  for -Y option.
	- Moved hierarchy_code for access.log from MemObject to
	  request_t so simultaneous client readers don't get the same
	  hierachy code.

Changes to squid-1.0.4 (July 24, 1996):

	- Fixed ftpget logic/precedence bug
	- Fixed ttlSet() to choose TTL as offset from when the object
	  was originally served, not the current time.
	- Fixed configure bug with setting GETTIMEOFDAY_NO_TZP.
	- Removed unnecessary call to ipcache_gethostbyname() in
	  sslConnect().
	- Fixed stupid memset() bug in gopher.c causing
	  a huge block of stack memory to be zeroed.

Changes to squid-1.0.3 (July 18, 1996):

	- Fixed FTP to send 'Ascii' or 'Binary' based on MIME encoding,
	  not content-type.
	- Changed icpHierarchical() to allow IMS requests to neighbors
	  if they all support Squid's private keys.
	- Fixed icpUdpSend() to not ask for a HIT_OBJ reply if the
	  HTTP request included 'Pragma: no-cache'.

Changes to squid-1.0.2 (July 16, 1996):

	- Fixed HTTP code in access.log for TCP_IFMODSINCE requests.
	- Fixed SSL to not read again until previous write is complete.
	- Added CPU usage percentage in cachemgr 'info' output.
	- Fixed bug when removing a neighbor.  Forgetting to decrement
	  friends->n causes a duplicate ICP query to be sent in
	  neighborsUdpPing().
	- Increased some MAX_URL sized character buffers to prevent
	  overflows.

Changes to squid-1.0.1 (July 8, 1996):

	- Fixed ftpget server looping on socket EOF condition.
	- Fixed SA_RESETHAND undefined bug.
	- Fixed half-hour timezone offset bug.
	- Fixed parse_rfc850() to return -1 instead of 0 upon error.
	- Added patch for Motorola systems from Tony Lorimer.
	- Added support for HTTP PUT method.
	- Added check for <netinet/tcp.h> for HP-UX.
	- Added GNU General Public License.
	- Changed ttlSet() to use Date field if Last-Modified is absent.
	- Changed http.c to not save objects from neighbors which do
	  not have Date, Last-Modified, or Expires values.
	- Changed some large local character arrays to static.

Changes to squid-1.0.0 (July 1, 1996):

	- Fixed beta17 "fd_lifetime" typo bug
	- Added 'firewall_ip_list' to configuration options
	- Set resolver options to disable searching default domains
	  and parent domains.
	- Added blocking-rebuild -F option.
	- Fixed storeMaintainSwapSpace to be called every 10 seconds.
	- Fixed ICP_HIT_OBJ bug causing objects to get stuck in VM.
	- Fixed matching the ends of domain names (e.g. bar.com no 
	  longer matches foobar.com).
	- Fixed checking return code from fprintf() while writing the
	  clean swap log.
	- Fixed fatal_dump from storeSwapoutHandle running out of disk
	  space.
	- Added disabling of a neighbor cache if 95% of replies are
	  UDP_DENIED.
	- Added accounting for misc memory/data structures
	- Added 'no-query' option for 'cache_host' config line
	- Added error reporting to SSL requests.
	- Fixed SSL bug, client abort was not closing the server
	  side connection.
	- Fixed checking hierarchy_stoplist bug.
	- Fixed ipcache error messages by giving each entry its
	  own string.
	- Use sigaction() instead of signal() if available.
	- Fixed ipcache bug causing some lookups to get stuck in
	  PENDING state if all dnsservers are busy.
	- Fixed domain name matching bug when using '.com' instead of
	  'com'.
	- Fixed close_handler coredump bug in comm.c.
	- Removed unnecessary DNS lookup of hostnames in WAIS URLs.

Changes to squid-1.0.beta17 (June 12, 1996):

	- Fixed another ipcache coredump problem where an entry could
	  be released between writing to and reading from dnsserver.
	- Fixed store.c bug of purging aborted objects.
	- Cleaned up checkLifetimes() function to make it simpler.
	- Added visible_hostname support to ftpget.
	- Fixed null edge dereferencing bug for UDP_HIT_OBJ.

Changes to squid-1.0.beta16 (June 10, 1996):

	- Fixed two coredump-causing bugs in ipcache_unregister().
	- Changed 'close_handler' to a linked list.
	- Changed freeing of protodispatch_data structures to use
	  new close_handler (attached to client FD).
	- Fixed URL handling to accomodate browswers which do not handle
	  relative URL parsing.

Changes to squid-1.0.beta15 (June 9, 1996):

	- Fixed storeSwapoutHandle coredump bug
	- Fixed DNS lookup failure of neighbor hosts after a few hours
	  of operation
	- Changed memcpy() to memmove() for overlapping memory copies
	- Changed store rebuidling to unlink the log-last-clean file
	  in case of a crash during rebuild
	- Added forwarding loop detection
	- Changed all memcpy to use xmemcpy which is memmove, bcopy, or
	  memcpy.
	- Fixed coredump bug from partial dnsserver reads, manifest on
	  FreeBSD and NetBSD.

Changes to squid-1.0.beta14 (June 7, 1996):

	- Fixed coredump bug in icp.c when generating ``Not Modified''
	  replies.
	- Fixed SSL bug which assumed the requested host name would
	  already be in the IP cache.
	- Fixed names of generated HTTP reply headers.

Changes to squid-1.0.beta13 (June 7, 1996):

	- Fixed coredump bug where StoreEntry key was free'd too soon.
	- Fixed UDP_HIT_OBJ bug: cancel the hierarchy timeout and set
	  the ping_status to DONE for UDP_HIT_OBJ replies.

Changes to squid-1.0.beta12 (June 6, 1996):

	- Fixed problem when using udp_outgoing_addr where no ICP
	  packets would be recieved because they were getting sent
	  to the "outgoing" instead of the "incoming" socket.
	- Fixed objects hanging around in cache after a keychange.
	- Added ability to restrict neighbor caches with ACLs.
	  ('cache_host_acl').
	- Fixed ssl FD mismatch bug.
	- Fixed INADDR_NONE bug on 64bit systems.
	- Fixed store rebuilding bug; temporary log file was not being
	  truncated.
	- Made all external processes communicate with TCP sockets
	  (no more Unix domain sockets).
	- Semi-major rewrite of ipcache implementation.
	- Fixed a couple memory bugs found by purify.
	- Fixed sending large (>8192 bytes) HTTP requests.
	- Added "lazy" server IP address ACL checks (type 'dst').
	- Changed handling of IMS requests.  Now will return "304
	  Not Modified" if the requested object is in the cache
	  and not expired.

Changes to squid-1.0.beta11 (June 1, 1996):

	- Fixed serious memory leak of MemObject->reply structures.


Changes to squid-1.0.beta10 (May 31, 1996):

	- Fixed bug when request arrives in fragmented IP packets.
	- Fixed ACL bug which denied cache manager access while in
 	  httpd_accel mode.
	- Changed ftpget to "fail nicely" for sites which do not allow
	  PORT requests (if compiled with PASVONLY).
	- Fixed Unix domain socket off-by-one bug in ftpget.
	- Fixed lingering sockets after shutdown by SIGTERM.
	- Added dnsserver use histogram to ipcache stats.
	- Changed domain ACL's to match only the end of the hostname, not
	  just anywhere in the string.
	- Fixed setuid bugs when pid_filename was not defined
	- Fixed zero-sized object getting stuck in VM.
	- Configure checks for working UNIX domain stream sockets
	- Rotate cache.log before the others
	- SIGUSR2 now toggles between full and normal debugging
	- Close and restart ftpget server during logfile rotation
	- Added memory pools for request_t and MemObject data structures.
	- Added new address binding options for more control

Changes to squid-1.0.beta9 (May 23, 1996):

	- Fixed storeToString() coredump bug on 'swap_buf'
	- Added back the CIDR notation functionality to decoding IP
	  address ACLs.
	- Fixed ftpget listing parsing coredump bug.
	- Fixed neighborsUdpAck() coredump for late-arriving ICP replies.

Changes to squid-1.0.beta8 (May 22, 1996):

	- More friendly CFLAGS and LDFLAGS for configure
	- ACL_ALLWEEK bugfix
	- Added missing increment of UDP connection counter.
	- Changed ftpget select to check for EWOULDBLOCK/EAGAIN
	  (workaround for broken Solaris select(2)).
	- Fixed MALLINFO calls for Linux
	- Fixed strerror() problems on SunOS 4.1.x
	- Fixed DefaultAnnounceRate; set to zero by defult.
	- Changed all port variables to u_short.
	- Created AF_UNIX versions of comm_open(), comm_connect().
	- Changed ftpget server to use UNIX domain socket.
	- Removed RESET_SIGNAL_HANDLER check--always reset the signal
	  handler.
	- Added instrumentation of basic IPCache stats.
	- Fixed calculation of neighbor average RTT.
	- Added 'outbound_addr_list' to config
	- Change getFirstParent() to getFirstUpParent().
	- Changed ftpget to use an additional pipe() for crash detection
	- Added ICP_OP_DENIED message type
	- Added patches for Nextstep port from Luke Howard
	  <lukeh@vurt.schnet.edu.au>
	- Added a lifetime to HTTP server connections being deferred.
	- Added IP address ranges in 'src' ACLs
	- Added FQDN's in 'src' ACLs
	- Fixed request structure free-memory-read/coredump bug.
	- Changed icp.c to select on client socket to detect aborts.
	- Better compliance with HTTP/1.1 *DRAFT* regarding which reply
	  codes can be cached.
	- Added 'hierarchy_stoplist' configuration option.
	- Changed mallopt option M_MXFAST to 512 bytes.
	- Added -Y option to only return UDP_HIT or UDP_DENIED during
	  store reload.
	- Added UDP_HIT_OBJ type.  Just like a UDP_HIT, but object data
	  is returned in the UDP packet if it will fit; saves a TCP
	  connection.  Not compiled in by default, add -DUDP_HIT_WITH_OBJ
	  to src/Makefile DEFINES.

Changes to squid-1.0.beta7:

	- Fixed comm_udp_sendto continuous loop bug
	- Fixed URLs-with-colon-but-no-port-number bug
	- Fixed sending ICP queries for HEAD requests
	- Changed 'server_list' output.  Added RTT, Fetches, Hits, Misses,
	  and percents.
	- Fixed setuid bug causing some logs to be owned by root.
	- Fixed virtual host mode (-V option)
	- Added read(2) instrumentation for HTTP and FTP.
	- Changed neighbor initialization to continue if DNS lookup fails.
	- Lint cleanup

Changes to squid-1.0.beta6:

	- Fixed null error message coredump in ftpget.
	- Added -m Method option to `client'.
	- Fixed ftpget server bug with missing trailing slash.
	- Removed 'connect_ports' from config, use general ACLs instead.
	- Changed requested listen queue length to 1/4 of getMaxFD().
	- Rewrote SSL/CONNECT handlers.  Now doesn't use a StoreEntry.
	- Fixed some aborted objects getting stuck in VM bug.
	- Fixed ftpget PASV reply sscanf to work for VMS ftpd.
	- Changed FTP URL parsing to use urlParse().
	- Changed ftpget to skip RETR command if URLs ends with '/'.
	- Changed ftpget to display README at the bottom if there are other
	  server messages.
	- Changed ftpget to not reopen a new data connection
  	  if one is already open.
	- Fixed handling of FTP URLs with spaces (and other unsafe characters)
	- Changed ftpget to only generate BASE HREF if the FTP URL does
	  not end with '/'.

Changes to squid-1.0.beta5:

	- Fixed cachemgr to send 'HTTP/1.0' on request so it works
	  with beta4 fixes to icp.c.

Changes to squid-1.0.beta4:

	- Added a handler to restart the ftpget server.
	- Fixed access checks for ICP by parsing the requested URL.
	- Added "magic marker" to ftpget-generated errors so they can
	  be negative-cached.
	- Added a small run-time check to configure to see if signal
	  handlers should be restarted after invocation (ala SYSV).
	- Determine Maximum filedescriptors in configure and change
	  FD_SETSIZE if needed.
	- Changed read stall algorithm for HTTP.  No don't wait until
	  the object is in DELETE_BEHIND mode to stall the server read
	  and wait for the client to catch up.  Also changed from 4k to
	  16k read buffer.
	- Fixed HTTP request parsing to check for blank line at the
	  end of all requests.  Symptoms were "connection reset"
	  messages.

Changes to squid-1.0.beta3:

	- Added ftpget '-C minport:maxport' option
	- Fixed PROTO_MAX fencepost bug in stat_init().
	- Fixed Fixed CheckQuickAbort() coredump.
	- Fixed disabling store.log and hierarchy.log when set to "none"
	- Fixed numerous problems related to setuid().
	- Fixed 'check_cache.pl' to use new swaplog format (without "FILE").
	- Fixed ACL coredumps when checking NULL words.
	- Changed pid_filename to be written and unlinked as root.
	- Added "-i seconds" option to 'client' for testing IMS GET.
	- Fixed a bug where an IMS request caused the valid object to
	  get ejected from the cache.
	- Fixed continual DEAD_PARENT/REVIVE bug
	- Fixed ERR_INVALID_URL bug for URLs with a password field.
	- Added to Release-Notes info about converting 'cache/log' and
	  difference between stoplists and ttl_pattern.

Changes to squid-1.0.beta2:

	- Fixed /bin/csh "$#argv" leftover in RunCache.
	- Fixed ACL day-of-week bitmask bug.
	- Fixed missing checks for WAIS in some places.
	- Fixed chdir(swappath(0)) bug; do chdir() after storeInit().
	- Changed enumerated structure members to be defined outside
	  of the structure itself (for AIX).
	- Changed ftpget to fork before reading the request and make
	  sure the entire request is read.

Changes to squid-1.0.beta1 (Apr 19, 1996) from Harvest cached-1.4.pl3:

	- Added a "server mode" to ftpget.  Now the (much smaller)
	  ftpget process forks for each FTP request.
	- Added support for If-Modified-Since GET requests.
	- Added support for SSL and https objects.
	- Added background processing for rebuilding the disk store
	  while serving requests.  Cache can now serve requests immediately.
	- Added a 'reconfigure' feature activated by SIGHUP.  The config
	  file is re-read and most changes will take effect.
	- Added an internal flag for using private keys with ICP queries
	  to neighbors.  If any neighbor returns a reqnum field of zero,
	  then disable using private keys.  But still use private
	  keys for things with bypass the ICP query step (such as POST
	  and IMS-GET).
	- Added a function to verify content-lengths.  Objects with
	  mismatched (but non-zero) content lenghts will be ejected.
	- Added clean shutdown mode.  On SIGTERM the incoming HTTP socket
	  is closed.  Active clients are given a lifetime of 30 seconds
	  (configurable).  Process exits when all sockets are closed.
	- Added support for large POST objects.
	- Added "store.log" which logs RELEASE/SWAPIN/SWAPOUT events.
	- Added announce feature to squid; no longer external program.
	  If enabled, a running cache will announce itself every 24 hrs.
	- Added support for FTP URLs with non-default ports.
	- Added new Access Control List scheme.
	- Added Forwarded: header to proxy HTTP requests (HTTP/1.1 feature).
	- Added weights neighbors.
	- Added urlParse() which strips off default ports and 
	  makes hostnames all lowercase.
	- Added (section,level) debugging and 'debug_options' config line.
	- Added 'pid_filename' to configuration file.
	- Added 'visible_hostname' to configuration file.
	- added 'ftp_user' to configuration file.
	- added 'dns_positive_ttl' to configuration file.
	- added 'dns_negative_ttl' to configuration file.
	- Added 'shutdown_lifetime' to configuration file.
	- Fixed bug where cache process would "spin" on large objects
	  being deferred.
	- Fixed byte order conversion bug on setting echo port.
	- Changed meaning of command line -b (buffered logs) option.
	  Now the default behaviour is unbuffered logs, use -b to make
	  them buffered.
	- Changed WAIS code to always be fully compiled in.
	- Changed the storage manager to use the notion of private and
	  public keys.  Requests are now private until the reply headers
	  have been read.
	- Changed access logging significantly.  Entries to "access.log"
	  are written when the client connection closes.  Every connection
	  is logged exactly once, always with a valid size.
	- Changed access log format (non-common) to include request
	  method and sub-second timestamps.
	- Changed handing of ECONNRESET (connection reset) errors.
	  Now treated like any other read error.
	- Changed 'rotate logs' to be activated by SIGUSR1.
	- Changed configure script to look specifically for tm_gmtoff
	  and set HAVE_TM_GMTOFF.
	- Changed configure script to look specifically extended mallinfo
	  structure and set HAVE_EXT_MALLINFO
	- Changed ICP reply code to use negative TTL value as UDP_HIT
	  threshold so we never return a HIT on neg-cached objects.
	- Changed ftpget to use select(2) on I/O for timeouts.  ftpget
	  now exits immediately if stdin goes away.
	- Changed handling of '-z' option.  Now only execute 'rm -rf ...' if
	  -U option also given.
	- Removed the command line -d (debug) option.  Use 'debug_options'
	  in config file.
	- Removed all code and references to binary port.
	- Removed dual logging to stderr/cache.log.
	- Removed old IP access controls ('proxy_allow', etc.)