avoid that warning, the ints are first cast to size_t, which is more
likely to match the size of a pointer. Unfortunately, the intptr_t and
uintptr_t types are marked optional in C99.
Fix a problem with PK's strndup() implementation assuming all strings
passed to it would be NUL-terminated. This is known to fix crashes with
polkit-gnome-authorization and clock-applet.
PolicyKit is an application-level toolkit for defining and handling the
policy that allows unprivileged processes to speak to privileged processes:
It is a framework for centralizing the decision making process with respect
to granting access to privileged operations for unprivileged applications.
PolicyKit is specifically targeting applications in rich desktop environments
on multi-user UNIX-like operating systems. It does not imply or rely on any
exotic kernel features.
