Known Bugs and Patches
The list of known bugs are in reverse chronological order. Please report
bugs or bug-fixes to email@example.com noting
the version of the daemon and what caused the bug to appear.
The provided patches are relative to the
WWW directory in the
distribution tree. In order to apply a patch, do the following in the
Download the patch, for example httpd-1.fix
Invoke the patch command by typing
patch < httpd-1.fix
Rebuild the code by typing
You should only apply patches under the section with same version
number as your current version. You can see the current version of this software
by looking into the version
AT&T, cover message of 4 Aug 1999
Proxy SSL Tunneling Patch
Ari Luotonen has provided this
SSL tunneling patch for W3C httpd which adds support
for the CONNECT method used by SSL enhanced clients to open a secure tunnel
through the proxy.
Non default ports for HTTP gets chopped off in
included in 3.0A
This patch solves this problem by checking
that only HTTP request with a port indication of port 80 can get canonicalized.
Date extensions on log files are GMT and can not be disabled - included
This patch makes the date/time extension on logfiles
using the LogTime directive.
It furthermore disables the default log file date extension. Now you must
explicitly add the
LogFileDateExt in order
to get it.
Problems with OSF/1 Version
3.0 and Scripts
There are some strange problems with the server when running on a OSF/1 3.0
platform, that doesn't exist on other platforms. I now have a
patch for the file HTScript.c in the Daemon
code sent by Bjorn S. Nilsson, NBI, Copenhagen
<NILSSON@nbivax.nbi.dk> which fixes the problem. Other solutions might
work as well!
Core Dumps - included in 3.0A
The current version has a trivial bug which causes a lot of core dumps. You
can prevent this by applying the following
patch and then rebuild the Library and link
it with server.
Problem with NEWS URIs converted to lowercase - included in 3.0A
I got the spec the wrong way round so that message IDs are converted to
lowercase. You can fix this by applying the following
Compiling for SCO platform (and BSD/386)
When compiling for the
SCO platform you need to apply these
patches in order to make it work (at least with the native C compiler):
At least the first patch does also apply for the BSD/386 platform.
Problems with weird URIs through Proxy - included in 3.0A
If you have problems with the proxy server when trying to pass long URIs
then the problem is that I added the functionality for the proxy to canonicalize
the URIs so that
http://WwW = http://Www.W3.oRg = http://www.w3.org:80 etc.
(the domain name only works inside W3.ORG of course). The reason for this
is that the document cache will contain less duplicate entries and it is
easier to make pass rules in the configuration file. I still think this is
a good idea but I will change the current behavior so that the next version
of the proxy is completely transparent to the client but the functionality
above is kept. You can disable the canonicalization in the current version
by adding this patch.
Malloc problem on AIX machines - included in 3.0A
If you get the following error message on a AIX platform:
../../Daemon/Implementation/HTRequest.c buf_put_char: out of memory.
Then you need this patch. Add it to the
file and rebuild the server.
Compilation on Apple A/UX
You need to add a small change (it slipped out from the patch) in
WWW/Daemon/Implementation/HTSUtils.c line 22. Modify the line
#if defined(Mips) || (defined(VMS) && !defined(DECC))
#if defined(Mips) || defined(_AUX) || (defined(VMS) && !defined(DECC))
And it will work!
Mosaic, Proxy and HTTP 0.9 servers
The substantial amount of data in a Mosaic header (more than 1K) often confuses
a HTTP 0.9 server which doesn't expect additional header information at all.
This might cause that the remote HTTP 0.9 server closes the connection and
only a part of the requested document is returned to the client through the
Proxy. When Mosaic connects directly to a 0.9 server it always tries twice,
but this doesn't work through the Proxy as the Proxy has no mean of telling
the Mosaic client that the connection is closed prematurely, the result is
a document which is chopped off.
Redirection Using the Proxy
The proxy doesn't count the number of redirections send to it as it is forking
on every request. Hence if the proxy client repeatedly asks for the same
document (infinite redirection) then the proxy just keeps on handling the
request. That is - it is for the client to prevent a redirection loop.
Closing connection on 401 Authentication status code from server
The client is responsible for closing the connection if it receives a 401
status code from the server. If it doesn't then the connection is timed out
at some point at the server and a delayed request with new/modified
authentication headers will be rejected.
POST method gets truncated
Another problem with the W3C Reference Library
version 2.16beta is that it truncates the POST header sent to the server
when used through a proxy server. The solution is the same as below, that
is getting a new version of the library (2.16pre2 or later).
Proxies in cascade
Doesn't work in the 3.0pre6 version due to an error in the simplification
function in the W3C Reference Library. The
fix is to get the Library version 2.16pre2 or never from
info server and then recompile the library
and relink to the Daemon. If you are using version 2.16pre2 then you must
do the following substitution in the Daemon Code only in order to
make it compile:
HTGetHostName -> HTGetHostBySock
HTHostName -> HTGetHostName
The parameters are otherwise the same. Later versions of the library might
not compile without further changes in the Daemon.
Note: Make sure that you recompile the whole library by using
make clobber in the WWW directory.
At least SunOS 4.1.* and NeXT
inetd doesn't allow more than
40 requests per minute from the same client. There is a fix for at least
inetd (100178-08), or you can run
standalone (preferably with the
-fork command line option).
Gives "accept: SIOCGPGRP failed errno 2" entries in Solaris syslog (Solaris
Doesn't work when running from
inetd - fixed in 3.0pre5.
Support has been broken since version 2.14; it is fixed again in version
3.0pre4 (beta-test release).
created June 1995 by frystyk
last revised $Date: 1999/09/28 18:15:01 $ by $Author: connolly $