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