NULL dereference when memory is tight

Hi,

I recently found a few places in the latest beta release where a NULL
dereference could occur when insufficient memory is available.

For example in connection_type.c:

     830     self->dsn = strdup(dsn);
     ...
     855     pos = strstr(self->dsn, "password");

strdup could return a NULL.

Admittedly this is probably a minor bug, but would it interest anyone if
I report these somewhere?

--
Brian Sutherland