OpenSolaris

Customer has an NSAPI "C" plugin that performs GSSAPI authentication (using Kerberos).   The applicatoin itself has > 256 file descriptors open at one time (its a busy app).  When GSSAPI authentication is needed, it fails whenever there are already 256 fds open because of the STREAMS limitation in 32-bit Solaris. 


 xxxxx@xxxxx.com 2005-1-25 16:32:13 GMT

Compiling in 64-bit mode may solve the problem, but it may not be possible because the authentication module is a plugin to a larger framework that may not support 64-bit plugins.

 xxxxx@xxxxx.com 2005-1-25 16:32:13 GMT

Because one can never know what libraries will use stdio one way to work
around this is to dup2() all fildes of interest in the application up above
255, then close() the original -- this leaves fildes < 256 available for use
by libraries.

It is also possible to write a LD_PRELOAD interposer that does this, and
more, transparently.
 xxxxx@xxxxx.com 2005-1-25 17:09:45 GMT

Customer has implemented an interposer library to dup the file descriptors to a higher value so that the STDIO files can still be opened.

 xxxxx@xxxxx.com 2005-1-27 16:13:30 GMT

N/A