src/networkd/logging.c

   1 /*#############################################################################
   2 #                                                                             #
   3 # IPFire.org - A linux based firewall                                         #
   4 # Copyright (C) 2023 IPFire Network Development Team                          #
   5 #                                                                             #
   6 # This program is free software: you can redistribute it and/or modify        #
   7 # it under the terms of the GNU General Public License as published by        #
   8 # the Free Software Foundation, either version 3 of the License, or           #
   9 # (at your option) any later version.                                         #
  10 #                                                                             #
  11 # This program is distributed in the hope that it will be useful,             #
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of              #
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               #
  14 # GNU General Public License for more details.                                #
  15 #                                                                             #
  16 # You should have received a copy of the GNU General Public License           #
  17 # along with this program.  If not, see <http://www.gnu.org/licenses/>.       #
  18 #                                                                             #
  19 #############################################################################*/
  20
  21 #include <errno.h>
  22 #include <stdio.h>
  23 #include <stdlib.h>
  24
  25 #include <systemd/sd-journal.h>
  26
  27 #include "logging.h"
  28
  29 void nw_log(int priority, const char* file,
  30                 int line, const char* fn, const char* format, ...) {
  31         char* buffer = NULL;
  32         va_list args;
  33         int r;
  34
  35         // Format log message
  36         va_start(args, format);
  37         r = vasprintf(&buffer, format, args);
  38         va_end(args);
  39         if (r < 0)
  40                 return;
  41
  42         // Send message to journald
  43         r = sd_journal_send(
  44                 "MESSAGE=%s", buffer,
  45                 "PRIORITY=%d", priority,
  46
  47                 // Syslog compat
  48                 "SYSLOG_IDENTIFIER=networkd",
  49
  50                 // Debugging stuff
  51                 "ERRNO=%d", errno,
  52                 "CODE_FILE=%s", file,
  53                 "CODE_LINE=%d", line,
  54                 "CODE_FUNC=%s", fn,
  55
  56                 NULL
  57         );
  58
  59         // Fall back to standard output
  60         if (r)
  61                 sd_journal_perror(buffer);
  62
  63         // Cleanup
  64         free(buffer);
  65 }