Bug 181994

	

I'm *really* not sure who's "fault" this is... but when ejabberd is built with
openssl 1.0.1e from ports, it drops core every time it attempts to make a TLS
s2s connection to proxy.eu.jabber.org. My reading of the gdb output shows it
croaks in some function inside libz.so.

I rebuilt openssl without support for zlib, and the problem went away.
Comparing the configuration to the base system openssl, I see that zlib is
also disabled there, so I feel confident that this is an acceptable solution.

That said, none of my other applications had any problems with zlib support in
openssl:  apache, subversion, postfix, openvpn, opendkim, nrpe2, etc. but I
don't know if they even tried to use compression.

Fix: 

rebuild openssl port without zlib support.
How-To-Repeat: 	

Here's what GDB had to say about the core dump (program exited signal 11)

(gdb) where
#0  0x0000000807faac62 in deflateCopy () from /usr/lib/libz.so
#1  0x0000000807fab455 in deflateSetDictionary () from /usr/lib/libz.so
#2  0x0000000807fabe97 in deflate () from /usr/lib/libz.so
#3  0x000000080747dbae in zlib_stateful_compress_block ()
   from /usr/local/lib/libcrypto.so.8
#4  0x000000080747ce22 in COMP_compress_block ()
   from /usr/local/lib/libcrypto.so.8
#5  0x0000000807939eee in ssl3_do_compress () from /usr/local/lib/libssl.so.8
#6  0x000000080793a0b4 in do_ssl3_write () from /usr/local/lib/libssl.so.8
#7  0x000000080793a5ec in ssl3_write_bytes () from /usr/local/lib/libssl.so.8
#8  0x000000080793cb1d in ssl3_do_write () from /usr/local/lib/libssl.so.8
#9  0x0000000807936420 in ssl3_connect () from /usr/local/lib/libssl.so.8
#10 0x0000000807da2d93 in tls_drv_control ()
   from /usr/local/lib/erlang/lib/ejabberd-2.1.13/priv/lib/tls_drv.so
#11 0x000000000048641f in erts_port_control ()
#12 0x00000000004fd0cf in port_control_3 ()
#13 0x000000000052dd1e in process_main ()
#14 0x0000000000498b5c in erts_test_next_pid ()
#15 0x0000000000594ce9 in ethr_thr_join ()
#16 0x00000008010840a4 in pthread_getprio () from /lib/libthr.so.3
#17 0x0000000000000000 in ?? ()
Cannot access memory at address 0x7fffff7ed000
(gdb)