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Posted to dev@httpd.apache.org by Marc Slemko <ma...@znep.com> on 1997/01/11 21:34:07 UTC
problem with log url overflow found

Check out http_request.c, line 160:

        rv = stat(path, &r->finfo);

On some systems, when you get too many '/'s, the stat will return -1.
That is why some people can't see it.  I would be other web servers 
(and lots of other programs) have the same problem.

I added some debugging output and got the below on a FreeBSD 2.1.5
system.  Note the line that says "stat of /usr/local... returned
-1".  A log from a trial with less '/'s is shown below this log.

[Sat Jan 11 13:30:27 1997] entering directory_walk, st_mode = 0
[Sat Jan 11 13:30:27 1997] entering get_path_info, st_mode = 0
[Sat Jan 11 13:30:27 1997] stat of /usr/local/etc/httpd/htdocs returned 0
[Sat Jan 11 13:30:27 1997] exiting get_path_info early1, st_mode = 16893
[Sat Jan 11 13:30:27 1997] returning normally from directory_walk, st_mode = 16893
[Sat Jan 11 13:30:28 1997] entering directory_walk, st_mode = 0
[Sat Jan 11 13:30:28 1997] entering get_path_info, st_mode = 0
[Sat Jan 11 13:30:28 1997] stat of /usr/local/etc/httpd/htdocs/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////index.html returned -1
[Sat Jan 11 13:30:28 1997] stat of /usr/local/etc/httpd/htdocs returned 0
[Sat Jan 11 13:30:28 1997] setting st_mode to 0 in get_path_info
[Sat Jan 11 13:30:28 1997] exiting get_path_info early1, st_mode = 0
[Sat Jan 11 13:30:28 1997] returning normally from directory_walk, st_mode = 0
[Sat Jan 11 13:30:28 1997] checking file index.html, uri: /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////index.html
 status: 200 st_mode: 0


Trying "http://alive/////////////////////////" gives what is expected:

[Sat Jan 11 13:32:31 1997] entering directory_walk, st_mode = 0
[Sat Jan 11 13:32:31 1997] entering get_path_info, st_mode = 0
[Sat Jan 11 13:32:31 1997] stat of /usr/local/etc/httpd/htdocs returned 0
[Sat Jan 11 13:32:31 1997] exiting get_path_info early1, st_mode = 16893
[Sat Jan 11 13:32:31 1997] returning normally from directory_walk, st_mode = 16893
[Sat Jan 11 13:32:31 1997] entering directory_walk, st_mode = 0
[Sat Jan 11 13:32:31 1997] entering get_path_info, st_mode = 0
[Sat Jan 11 13:32:31 1997] stat of /usr/local/etc/httpd/htdocs/////////////////////////index.html returned 0
[Sat Jan 11 13:32:31 1997] exiting get_path_info early1, st_mode = 33188
[Sat Jan 11 13:32:31 1997] returning normally from directory_walk, st_mode = 33188
[Sat Jan 11 13:32:31 1997] checking file index.html, uri: /////////////////////////index.html
 status: 200 st_mode: 33188
[Sat Jan 11 13:32:31 1997] internal redirect from /////////////////////////index.html to /////////////////////////index.html

[Sat Jan 11 13:32:31 1997] entering directory_walk, st_mode = 0
[Sat Jan 11 13:32:31 1997] entering get_path_info, st_mode = 0
[Sat Jan 11 13:32:31 1997] stat of /usr/local/etc/httpd/htdocs/////////////////////////index.html returned 0
[Sat Jan 11 13:32:31 1997] exiting get_path_info early1, st_mode = 33188
[Sat Jan 11 13:32:31 1997] returning normally from directory_walk, st_mode = 33188