Line data    Source code

       1             : /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
       2             : 
       3             : /***
       4             :   This file is part of systemd.
       5             : 
       6             :   Copyright 2014 Sebastian Thorarensen
       7             : 
       8             :   systemd is free software; you can redistribute it and/or modify it
       9             :   under the terms of the GNU Lesser General Public License as published by
      10             :   the Free Software Foundation; either version 2.1 of the License, or
      11             :   (at your option) any later version.
      12             : 
      13             :   systemd is distributed in the hope that it will be useful, but
      14             :   WITHOUT ANY WARRANTY; without even the implied warranty of
      15             :   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
      16             :   Lesser General Public License for more details.
      17             : 
      18             :   You should have received a copy of the GNU Lesser General Public License
      19             :   along with systemd; If not, see <http://www.gnu.org/licenses/>.
      20             : ***/
      21             : 
      22             : #include "utmp-wtmp.h"
      23             : #include "journald-server.h"
      24             : #include "journald-wall.h"
      25             : #include "formats-util.h"
      26             : #include "process-util.h"
      27             : 
      28           0 : void server_forward_wall(
      29             :                 Server *s,
      30             :                 int priority,
      31             :                 const char *identifier,
      32             :                 const char *message,
      33             :                 const struct ucred *ucred) {
      34             : 
      35           0 :         _cleanup_free_ char *ident_buf = NULL, *l_buf = NULL;
      36             :         const char *l;
      37             :         int r;
      38             : 
      39           0 :         assert(s);
      40           0 :         assert(message);
      41             : 
      42           0 :         if (LOG_PRI(priority) > s->max_level_wall)
      43           0 :                 return;
      44             : 
      45           0 :         if (ucred) {
      46           0 :                 if (!identifier) {
      47           0 :                         get_process_comm(ucred->pid, &ident_buf);
      48           0 :                         identifier = ident_buf;
      49             :                 }
      50             : 
      51           0 :                 if (asprintf(&l_buf, "%s["PID_FMT"]: %s", strempty(identifier), ucred->pid, message) < 0) {
      52           0 :                         log_oom();
      53           0 :                         return;
      54             :                 }
      55             : 
      56           0 :                 l = l_buf;
      57             : 
      58           0 :         } else if (identifier) {
      59             : 
      60           0 :                 l = l_buf = strjoin(identifier, ": ", message, NULL);
      61           0 :                 if (!l_buf) {
      62           0 :                         log_oom();
      63           0 :                         return;
      64             :                 }
      65             :         } else
      66           0 :                 l = message;
      67             : 
      68           0 :         r = utmp_wall(l, "systemd-journald", NULL, NULL, NULL);
      69           0 :         if (r < 0)
      70           0 :                 log_debug_errno(r, "Failed to send wall message: %m");
      71             : }