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NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | 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.
Errors
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.
These APIs are implemented 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 2020-08-13. (At that
time, the date of the most recent commit that was found in the repos‐
itory was 2020-08-11.) If you discover any rendering problems in
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of the original manual page), send a mail to man-pages@man7.org
systemd 246 SD_MACHINE_GET_CLASS(3)
Pages that refer to this page: 30-systemd-environment-d-generator(7) , systemd.index(7)