Description:
------------
I'm seeing a segmentation fault when I try to connect and authenticate to a 
server 
that only supports keyboard-interactive auth.  

I applied http://svn.php.net/viewvc/pecl/ssh2/trunk/ssh2.c?r1=326120&r2=326198 
to 
v0.11.3 of the code.

I see this crash every time, I believe I've traced it down to this line:

// line below does NOT estrdup() because it is used and freed by the libssh2 
library
responses[0].text = strdup(password_for_kbd_callback);

Later on, that response gets cleaned up by a LIBSSH2_FREE call, which ultimately 
calls efree().  I believe this crash is occurring because estrdup was not used.  
If I switch that line to use estrdup, the crash ceases.