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Diffstat (limited to 'src/grp-system/systemd-cgroups-agent/cgroups-agent.c')
-rw-r--r--src/grp-system/systemd-cgroups-agent/cgroups-agent.c67
1 files changed, 67 insertions, 0 deletions
diff --git a/src/grp-system/systemd-cgroups-agent/cgroups-agent.c b/src/grp-system/systemd-cgroups-agent/cgroups-agent.c
new file mode 100644
index 0000000000..1475334fc1
--- /dev/null
+++ b/src/grp-system/systemd-cgroups-agent/cgroups-agent.c
@@ -0,0 +1,67 @@
+/***
+ This file is part of systemd.
+
+ Copyright 2010 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <stdlib.h>
+#include <sys/socket.h>
+
+#include "systemd-basic/fd-util.h"
+#include "systemd-basic/log.h"
+#include "systemd-basic/socket-util.h"
+
+int main(int argc, char *argv[]) {
+
+ static const union sockaddr_union sa = {
+ .un.sun_family = AF_UNIX,
+ .un.sun_path = "/run/systemd/cgroups-agent",
+ };
+
+ _cleanup_close_ int fd = -1;
+ ssize_t n;
+ size_t l;
+
+ if (argc != 2) {
+ log_error("Incorrect number of arguments.");
+ return EXIT_FAILURE;
+ }
+
+ log_set_target(LOG_TARGET_AUTO);
+ log_parse_environment();
+ log_open();
+
+ fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0);
+ if (fd < 0) {
+ log_debug_errno(errno, "Failed to allocate socket: %m");
+ return EXIT_FAILURE;
+ }
+
+ l = strlen(argv[1]);
+
+ n = sendto(fd, argv[1], l, 0, &sa.sa, SOCKADDR_UN_LEN(sa.un));
+ if (n < 0) {
+ log_debug_errno(errno, "Failed to send cgroups agent message: %m");
+ return EXIT_FAILURE;
+ }
+
+ if ((size_t) n != l) {
+ log_debug("Datagram size mismatch");
+ return EXIT_FAILURE;
+ }
+
+ return EXIT_SUCCESS;
+}