Problem with Apache/Mod SSL/PHP/Zend as DSO

[giridhars]

Hello,

After a bit of struggle, I managed to build Apache 1.3.27/Mod SSL (2.8.12)/Open SSL (0.9.6g)/PHP 4.2.3 as a set of DSO's.  I used gcc 3.2 to compile these.   I have compiled it on HPUX 11.0.

After build and install, I had to hack apachectl script to use LD_PRELOAD to load libpthread and libcl shared libraries along with few Oracle libraries.

Apache seems to be working fine.  However, I face strange problems when I run my PHP scripts.  I get "page cannot be displayed - dns error" when I tried to invoke my php scripts.

My PHP scripts however, work fine on apache/mod ssl/php built and linked statically.  My php.ini is proper.  

 Has anybody faced the same problem (DSO) on HP UX ?  Is there a solution ?  

  I even wrote a simple php script like

<?
define("LOGDIR","/var/opt/insm/eos/eafwww/log");
define("LOGFILE","eafwww.log");

 $message = "Test";
 if (true == is_dir(LOGDIR))
 {
      $file = (LOGDIR . "/" . LOGFILE);
      if (false == is_file($file))
      {
             if ( false == touch($file) )
             {
                   die("FATAL ERROR: cannot touch logfile. Dying.\n");
             }

             if ( false == chmod($file, 0600) )
             {
                   die("FATAL ERROR: cannot adjust permissions of logfile. Dying.\n");
             }
      }

      error_log($message, 3, LOGDIR . LOGFILE);
 }

?>

 If I comment call to error_log, the script works fine.  This is strange.  I have even enabled log_errors = On in my php file.  

 Can somebody help ?

Regards,
Giri

[floR]

First of all, sorry for luring you here but I don't have an answer :-/

I do have a question instead.
You said: "After build and install, I had to hack apachectl script to use LD_PRELOAD to load libpthread and libcl shared libraries along with few Oracle libraries"

I think I need to hack my apachectl as well, since Apache won't start and is giving me a 'undefined symbol:pcre_malloc' message. So my question is, could you tell me what and where to hack?

[giridhars]

On HPUX, this is a common problem. I guess what'z happening is that it is unable to locate and load few shared libraries. You can do the following:

a) Try ldd httpd (you can find httpd under $APACHE_HOME/bin
and verify if libpthread.sl and libcl.sl are shown. Also verify
any other shared library that you would want Apache to use.

b) Edit your apachectl file and include the following in the
configuration section (in the beginning of the file)
export LD_PRELOAD=/usr/lib/libpthread.sl:/usr/lib/libcl.sl

 You can also include any other shared libraries like SSL, etc.

c) If the problem still persists, you have a difficult task. You need
to locate the corresponding .sl file where you can find the
symbol (cre_malloc) defined and load that library in
LD_PRELOAD. You can use nm <shared library> to list all the
extern methods and symbols defined to locate your missing
symbol.

🙂
All the best.
Giri

[floR]

Thanks for your reply, but I can't seem to fix it.

Doing a 'nm' on all output of 'ldd httpd' does not contain any references to pcre_malloc.
The only location that I can find 'pcre_malloc' is in the php source tree (php-4.2.3/ext/pcre/pcrelib)

Oh well, back to php-less sites then. I feel bad enough as it is, for turning your question into my question.