Some cleanups:

Some cleanups:

- Don't use pstrcpy into an allocated string - use safe_strcpy() directly
instead.

- Keep a copy of the 'server_info' attached to the vuid.  In future use this
for things like the session key, homedir and full name instead of current
copies.

- Try to avoid memory leak/segfault on Realloc failure

- clear up #endif comments

Andrew Bartlett
(This used to be commit 162477bb086827950b6cb71afa9bef62c2753c2e)