x SuSE Linux 13.1-RELEASE x
x SuSE Linux 13.1-RELEASEx
SD_BUS_MESSAGE_SENSITIVE(3)sd_bus_message_sensitiveSD_BUS_MESSAGE_SENSITIVE(3)
NAME
sd_bus_message_sensitive - Mark a message object as containing
sensitive data
SYNOPSIS
#include <systemd/sd-bus.h>
int sd_bus_message_sensitive(sd_bus_message *message);
DESCRIPTION
sd_bus_message_sensitive() marks an allocated bus message as containing
sensitive data. This ensures that the message data is carefully removed
from memory (specifically, overwritten with zero bytes) when released.
It is recommended to mark all incoming and outgoing messages like this
that contain security credentials and similar data that should be dealt
with carefully. Note that it is not possible to unmark messages like
this, it's a one way operation. If a message is already marked
sensitive and then marked sensitive a second time the message remains
marked so and no further operation is executed.
As a safety precaution all messages that are created as reply to
messages that are marked sensitive are also implicitly marked so.
RETURN VALUE
On success, this functions return 0 or a positive integer. On failure,
it returns a negative errno-style error code.
Errors
Returned errors may indicate the following problems:
-EINVAL
The message parameter is NULL.
NOTES
Functions described here are available as a shared library, which can
be compiled against and linked to with the libsystemd pkg-config(1)
file.
The code described here uses getenv(3), which is declared to be not
multi-thread-safe. This means that the code calling the functions
described here must not call setenv(3) from a parallel thread. It is
recommended to only do calls to setenv() from an early phase of the
program when no other threads have been started.
SEE ALSO
systemd(1), sd-bus(3), sd_bus_message_new_method_call(3)
systemd 254 SD_BUS_MESSAGE_SENSITIVE(3)
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