145 lines
3.8 KiB
C
145 lines
3.8 KiB
C
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
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*
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* Copyright (C) 2007 William Jon McCann <mccann@jhu.edu>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* Authors: William Jon McCann <mccann@jhu.edu>
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*
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*/
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#include "config.h"
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#include <stdio.h>
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#include <string.h>
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#include <stdarg.h>
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#include <signal.h>
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#include <time.h>
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#include <unistd.h>
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#include <syslog.h>
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#include <systemd/sd-daemon.h>
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#include <glib.h>
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#include <glib/gstdio.h>
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#include "gdm-log.h"
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static gboolean initialized = FALSE;
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static gboolean is_sd_booted = FALSE;
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static gboolean debug_enabled = FALSE;
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static gint
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get_syslog_priority_from_log_level (GLogLevelFlags log_level)
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{
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switch (log_level & G_LOG_LEVEL_MASK) {
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case G_LOG_FLAG_FATAL:
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return LOG_EMERG;
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case G_LOG_LEVEL_ERROR:
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/* fatal error - a critical error, in the syslog world */
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return LOG_CRIT;
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case G_LOG_LEVEL_CRITICAL:
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/* critical warning - an error, in the syslog world */
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return LOG_ERR;
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case G_LOG_LEVEL_WARNING:
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case G_LOG_LEVEL_MESSAGE:
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return LOG_NOTICE;
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case G_LOG_LEVEL_INFO:
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return LOG_INFO;
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case G_LOG_LEVEL_DEBUG:
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default:
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return LOG_DEBUG;
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}
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}
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static void
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gdm_log_default_handler (const gchar *log_domain,
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GLogLevelFlags log_level,
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const gchar *message,
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gpointer unused_data)
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{
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int priority;
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gdm_log_init ();
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if ((log_level & G_LOG_LEVEL_MASK) == G_LOG_LEVEL_DEBUG &&
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!debug_enabled) {
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return;
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}
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/* Process the message prefix and priority */
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priority = get_syslog_priority_from_log_level (log_level);
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if (is_sd_booted) {
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fprintf (stderr,
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"<%d>%s%s%s\n",
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priority,
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log_domain != NULL? log_domain : "",
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log_domain != NULL? ": " : "",
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message);
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fflush (stderr);
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} else {
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syslog (priority,
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"%s%s%s\n",
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log_domain != NULL? log_domain : "",
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log_domain != NULL? ": " : "",
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message);
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}
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}
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void
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gdm_log_toggle_debug (void)
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{
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gdm_log_set_debug (!debug_enabled);
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}
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void
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gdm_log_set_debug (gboolean debug)
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{
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g_assert (initialized);
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if (debug_enabled == debug) {
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return;
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}
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if (debug) {
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debug_enabled = debug;
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g_debug ("Enabling debugging");
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} else {
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g_debug ("Disabling debugging");
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debug_enabled = debug;
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}
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}
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void
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gdm_log_init (void)
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{
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if (initialized)
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return;
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initialized = TRUE;
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g_log_set_default_handler (gdm_log_default_handler, NULL);
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}
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void
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gdm_log_shutdown (void)
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{
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if (!initialized)
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return;
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if (!is_sd_booted)
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closelog ();
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initialized = FALSE;
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}
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