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NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | NOTES | SEE ALSO | COLOPHON |
SD_MACHINE_GET_CLASS(3) sd_machine_get_class SD_MACHINE_GET_CLASS(3)
sd_machine_get_class, sd_machine_get_ifindices - Determine the class
and network interface indices of a locally running virtual machine or
container.
#include <systemd/sd-login.h>
int sd_machine_get_class(const char* machine, char **class);
int sd_machine_get_ifindices(const char* machine, int **ifindices);
sd_machine_get_class() may be used to determine the class of a
locally running virtual machine or container that is registered with
systemd-machined.service(8). The string returned is either "vm" or
"container". The returned string needs to be freed with the libc
free(3) call after use.
sd_machine_get_ifindices() may be used to determine the numeric
indices of the network interfaces on the host that are pointing
towards the specified locally running virtual machine or container
that is registered with systemd-machined.service(8). The returned
array needs to be freed with the libc free(3) call after use.
On success, these calls return 0 or a positive integer. On failure,
these calls return a negative errno-style error code.
Returned errors may indicate the following problems:
-ENXIO
The specified machine does not exist or is currently not running.
-EINVAL
An input parameter was invalid (out of range, or NULL, where that
is not accepted).
-ENOMEM
Memory allocation failed.
The sd_machine_get_class() and sd_machine_get_ifindices() interfaces
are available as a shared library, which can be compiled and linked
to with the libsystemd pkg-config(1) file.
systemd(1), sd-login(3), systemd-machined.service(8),
sd_pid_get_machine_name(3)
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 2017-07-05. If you dis‐
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COLOPHON (which is not part of the original manual page), send a mail
to man-pages@man7.org
systemd 234 SD_MACHINE_GET_CLASS(3)
Pages that refer to this page: systemd.directives(7), systemd.index(7)