Description:
------------
Apparently there seems to be some problems with imap_mailboxmsginfo(), causing a SIGBUS error in Apache.

My configure-line is

./configure' \
'--with-apxs=/usr/local/apache/bin/apxs' \
'--enable-cli' \
'--with-zlib' \
'--with-bz2' \
'--with-dom' \
'--with-dom-xslt' \
'--with-dom-exslt' \
'--with-expat' \
'--enable-exif' \
'--enable-ftp' \
'--with-jpeg-dir=/usr/local' \
'--with-gd' \
'--with-pgsql' \
'--with-gettext' \
'--with-ldap' \
'--with-mcrypt' \
'--enable-pcntl' \
'--with-pdflib' \
'--enable-sockets' \
'--enable-wddx' \
'--with-openssl' \
'--with-curl' \
'--with-interbase' \
'--with-xmlrpc' \
'--with-yaz' \
'--enable-shmop' \
'--with-imap=/usr/local/imap-2000e' \
'--enable-debug' \

IMAP being imap-uw version 2000e. I've also tried imap-2002d, both of which gave the same error.

I did read about mcrypt being one possible problem, so I updated that to version 2.6.4_1 in the FreeBSD ports collection, but that didn't help either.


Reproduce code:
---------------
<?php

if (($mbox = imap_open('{mail.server:110/pop3}', 'user', 'password')) === FALSE) {

            imap_close($mbox);
            var_dump(imap_errors());

        }

        $check = imap_mailboxmsginfo($mbox);

        imap_close($mbox);

?>

Expected result:
----------------
Nothing happens when running the above code, except 
Apache (1.2.27) crashing with a SIGBUS and a

[Sun Oct 19 18:41:40 2003] [notice] child pid 27550 exit signal Bus error (10)

being left in the Apache error logs.

Actual result:
--------------
The GDB backtrace looks like this:

Program received signal SIGBUS, Bus error.
mail_fetch_structure (stream=0x814dc00, msgno=1, body=0x0, flags=0) at mail.c:1395
1395          hdr[hdrsize] = '\0';      /* tie off header */
(gdb) bt
#0  mail_fetch_structure (stream=0x814dc00, msgno=1, body=0x0, flags=0) at mail.c:1395
#1  0x2829ef1d in zif_imap_mailboxmsginfo (ht=1, return_value=0x8172524, this_ptr=0x0, return_value_used=1)
    at /usr/home/mle/devel/php-4.3.3/ext/imap/php_imap.c:1901
#2  0x2840aa2a in execute (op_array=0x8173424) at /usr/home/mle/devel/php-4.3.3/Zend/zend_execute.c:1616
#3  0x283f92f9 in zend_execute_scripts (type=8, retval=0x0, file_count=3) at /usr/home/mle/devel/php-4.3.3/Zend/zend.c:885
#4  0x283c1fe7 in php_execute_script (primary_file=0xbfbff6e0) at /usr/home/mle/devel/php-4.3.3/main/main.c:1723
#5  0x2840fae4 in apache_php_module_main (r=0x816c034, display_source_mode=0)
    at /usr/home/mle/devel/php-4.3.3/sapi/apache/sapi_apache.c:54
#6  0x28410aa0 in send_php (r=0x816c034, display_source_mode=0,
    filename=0x816cc14 "/usr/local/apache/htdocs/Projects/STAY/lib/webmail.extension.php")
    at /usr/home/mle/devel/php-4.3.3/sapi/apache/mod_php4.c:620
#7  0x28410b11 in send_parsed_php (r=0x816c034) at /usr/home/mle/devel/php-4.3.3/sapi/apache/mod_php4.c:635
#8  0x08053b6a in ap_invoke_handler ()
#9  0x08067f26 in process_request_internal ()
#10 0x08067f88 in ap_process_request ()
#11 0x0805f1a8 in child_main ()
#12 0x0805f348 in make_child ()
#13 0x0805f4b1 in startup_children ()
#14 0x0805fa8e in standalone_main ()
#15 0x080602ac in main ()
#16 0x0804ec45 in _start ()