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authorIvan Shapovalov <intelfx100@gmail.com>2015-02-25 21:47:26 +0300
committerZbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>2015-02-27 17:28:03 -0500
commitea24d8d1383e038d6b6e599d42c0114b3dbd8acb (patch)
tree5923c51362060964585bfdb17904b30aa114b447 /src/user-sessions
parent8a9c6071cb7467170010f0287672c987981bdf9c (diff)
user-sessions: move into own subdir and build independently of logind
Suggested by Zbyszek on IRC. [zj: /run/nologin is used with PAM. systemd-user-session is independent of logind.]
Diffstat (limited to 'src/user-sessions')
l---------src/user-sessions/Makefile1
-rw-r--r--src/user-sessions/user-sessions.c80
2 files changed, 81 insertions, 0 deletions
diff --git a/src/user-sessions/Makefile b/src/user-sessions/Makefile
new file mode 120000
index 0000000000..d0b0e8e008
--- /dev/null
+++ b/src/user-sessions/Makefile
@@ -0,0 +1 @@
+../Makefile \ No newline at end of file
diff --git a/src/user-sessions/user-sessions.c b/src/user-sessions/user-sessions.c
new file mode 100644
index 0000000000..1c31769fde
--- /dev/null
+++ b/src/user-sessions/user-sessions.c
@@ -0,0 +1,80 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ 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 <unistd.h>
+#include <errno.h>
+
+#include "log.h"
+#include "util.h"
+#include "fileio.h"
+
+int main(int argc, char*argv[]) {
+
+ if (argc != 2) {
+ log_error("This program requires one argument.");
+ return EXIT_FAILURE;
+ }
+
+ log_set_target(LOG_TARGET_AUTO);
+ log_parse_environment();
+ log_open();
+
+ umask(0022);
+
+ if (streq(argv[1], "start")) {
+ int r = 0;
+
+ if (unlink("/run/nologin") < 0 && errno != ENOENT) {
+ log_error_errno(errno, "Failed to remove /run/nologin file: %m");
+ r = -errno;
+ }
+
+ if (unlink("/etc/nologin") < 0 && errno != ENOENT) {
+ /* If the file doesn't exist and /etc simply
+ * was read-only (in which case unlink()
+ * returns EROFS even if the file doesn't
+ * exist), don't complain */
+
+ if (errno != EROFS || access("/etc/nologin", F_OK) >= 0) {
+ log_error_errno(errno, "Failed to remove /etc/nologin file: %m");
+ return EXIT_FAILURE;
+ }
+ }
+
+ if (r < 0)
+ return EXIT_FAILURE;
+
+ } else if (streq(argv[1], "stop")) {
+ int r;
+
+ r = write_string_file_atomic("/run/nologin", "System is going down.");
+ if (r < 0) {
+ log_error_errno(r, "Failed to create /run/nologin: %m");
+ return EXIT_FAILURE;
+ }
+
+ } else {
+ log_error("Unknown verb %s.", argv[1]);
+ return EXIT_FAILURE;
+ }
+
+ return EXIT_SUCCESS;
+}