src/user-sessions/user-sessions.c

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2
   3 #include <errno.h>
   4 #include <unistd.h>
   5
   6 #include "fileio.h"
   7 #include "fileio-label.h"
   8 #include "fs-util.h"
   9 #include "main-func.h"
  10 #include "log.h"
  11 #include "selinux-util.h"
  12 #include "string-util.h"
  13 #include "util.h"
  14
  15 static int run(int argc, char*argv[]) {
  16         int r, k;
  17
  18         if (argc != 2)
  19                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
  20                                        "This program requires one argument.");
  21
  22         log_setup_service();
  23
  24         umask(0022);
  25
  26         mac_selinux_init();
  27
  28         if (streq(argv[1], "start")) {
  29                 r = unlink_or_warn("/run/nologin");
  30                 k = unlink_or_warn("/etc/nologin");
  31                 if (r < 0)
  32                         return r;
  33                 return k;
  34
  35         } else if (streq(argv[1], "stop"))
  36                 return create_shutdown_run_nologin_or_warn();
  37
  38         return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Unknown verb '%s'.", argv[1]);
  39 }
  40
  41 DEFINE_MAIN_FUNCTION(run);