now pop the first event off the active queue instead of using a
foreach loop with deferred removal of the event.
Add SUDO_EVQ_INSERTED and SUDO_EVQ_TIMEOUTS flags to indicate that
the event on the event queue and timeouts queue respectively.
No longer need to compare the timeout to {0,0} or compare the
event's base pointer to NULL to determine queue membership.
is currently O(n). The only consumer of timed events is sudoreplay
which only used a singled one so O(n) == O(1) for now. This also
allows us to remove the nanosleep compat function as we now use a
timeout event instead.
it calls poll or select. This allows the front end to iterate over
the events instead of having that code in both back ends. It will
also simplify support for timeout events. Also make sure we can't
touch freed memory if a callback frees its own event.
lists in sudoers. Once the headless tail queue is built up it is
converted to a normal TAILQ. This removes the last consumer of
list.c and list.h so those can now be removed.
queue functions. This includes a private queue.h header derived
from FreeBSD. It is simpler to just use our own header rather than
try to deal with macros that may or may not be present in various
queue.h incarnations.
simplied subset of libevent2. Currently only fd events are supported
(since that's all we need). The poll() backend is used by default,
except on Mac OS X where poll() is broken for devices (including
/dev/tty and ptys).
A new constant, SUDO_CONV_REPL_MAX, is defined by the plugin
API as the max conversation reply length. This constant can be
used as a max value for memset_s() when clearing passwords
filled in by the conversation function.
how a user's groups are looked up. Legal values are static (just
the kernel list from getgroups), dynamic (whatever the group database
includes) and adaptive (only use group db if kernel group list is
full).
wrapper that has an extra flag to check the saved_signals list to
only install the handler if the signal is not already ignored.
Bump plugin API version for the new front-end signal behavior.
MAXHOSTNAMELEN and the MIN/MAX macros. We now use PATH_MAX and
HOST_NAME_MAX throughout without falling back on MAXPATHLEN or
MAXHOSTNAMELEN and define our own MIN/MAX macros as needed.
Add sudo_printf function pointer that is initialized to _sudo_printf()
instead of requiring a sudo_conv function pointer everywhere. The
plugin will reset sudo_printf to point to the version passed in via
the plugin open function. Now plugin_error.c can just call sudo_printf
in all cases. The sudoers binaries no longer need their own version
of sudo_printf.
