sd_bus_can_send(3) — Linux manual page

NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | NOTES | SEE ALSO | COLOPHON

SD_BUS_CAN_SEND(3)             sd_bus_can_send            SD_BUS_CAN_SEND(3)

NAME         top

       sd_bus_can_send - Check which types can be sent over a bus object

SYNOPSIS         top

       #include <systemd/sd-bus.h>

       void sd_bus_can_send(sd_bus *bus, char type);

DESCRIPTION         top

       sd_bus_can_send is mostly used for checking if file descriptor
       passing is available on the given bus.  type can be any of the
       SD_BUS_TYPE constants.

RETURN VALUE         top

       On failure, sd_bus_can_send() returns a negative errno-style error
       code. If values of the given type can be sent over the given bus, it
       returns a positive integer. Otherwise, it returns zero.

   Errors
       Returned errors may indicate the following problems:

       -ENOPKG
           The bus object bus could not be resolved.

       -ENOTCONN
           The input parameter bus is NULL or the bus is not connected.

       -ECHILD
           The bus object bus was created in a different process.

NOTES         top

       These APIs are implemented as a shared library, which can be compiled
       and linked to with the libsystemd pkg-config(1) file.

SEE ALSO         top

       systemd(1), sd-bus(3)

COLOPHON         top

       This page is part of the systemd (systemd system and service manager)
       project.  Information about the project can be found at 
       ⟨http://www.freedesktop.org/wiki/Software/systemd⟩.  If you have a bug
       report for this manual page, see
       ⟨http://www.freedesktop.org/wiki/Software/systemd/#bugreports⟩.  This
       page was obtained from the project's upstream Git repository
       ⟨https://github.com/systemd/systemd.git⟩ on 2020-06-09.  (At that
       time, the date of the most recent commit that was found in the repos‐
       itory was 2020-06-09.)  If you discover any rendering problems in
       this HTML version of the page, or you believe there is a better or
       more up-to-date source for the page, or you have corrections or
       improvements to the information in this COLOPHON (which is not part
       of the original manual page), send a mail to man-pages@man7.org

systemd 245                                               SD_BUS_CAN_SEND(3)

Pages that refer to this page: sd-bus(3)sd_bus_get_creds_mask(3)sd_bus_negotiate_creds(3)sd_bus_negotiate_fds(3)sd_bus_negotiate_timestamp(3)30-systemd-environment-d-generator(7)systemd.directives(7)systemd.index(7)