diff options
Diffstat (limited to 'common/gdm-log.c')
| -rw-r--r-- | common/gdm-log.c | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/common/gdm-log.c b/common/gdm-log.c new file mode 100644 index 0000000..ddbf853 --- /dev/null +++ b/common/gdm-log.c @@ -0,0 +1,145 @@ +/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*- + * + * Copyright (C) 2007 William Jon McCann <mccann@jhu.edu> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * Authors: William Jon McCann <mccann@jhu.edu> + * + */ + +#include "config.h" + +#include <stdio.h> +#include <string.h> +#include <stdarg.h> +#include <signal.h> +#include <time.h> +#include <unistd.h> + +#include <syslog.h> +#include <systemd/sd-daemon.h> + +#include <glib.h> +#include <glib/gstdio.h> + +#include "gdm-log.h" + +static gboolean initialized = FALSE; +static gboolean is_sd_booted = FALSE; +static gboolean debug_enabled = FALSE; + +static gint +get_syslog_priority_from_log_level (GLogLevelFlags log_level) +{ + switch (log_level & G_LOG_LEVEL_MASK) { + case G_LOG_FLAG_FATAL: + return LOG_EMERG; + case G_LOG_LEVEL_ERROR: + /* fatal error - a critical error, in the syslog world */ + return LOG_CRIT; + case G_LOG_LEVEL_CRITICAL: + /* critical warning - an error, in the syslog world */ + return LOG_ERR; + case G_LOG_LEVEL_WARNING: + case G_LOG_LEVEL_MESSAGE: + return LOG_NOTICE; + case G_LOG_LEVEL_INFO: + return LOG_INFO; + case G_LOG_LEVEL_DEBUG: + default: + return LOG_DEBUG; + } +} + +static void +gdm_log_default_handler (const gchar *log_domain, + GLogLevelFlags log_level, + const gchar *message, + gpointer unused_data) +{ + int priority; + + gdm_log_init (); + + if ((log_level & G_LOG_LEVEL_MASK) == G_LOG_LEVEL_DEBUG && + !debug_enabled) { + return; + } + + /* Process the message prefix and priority */ + priority = get_syslog_priority_from_log_level (log_level); + + if (is_sd_booted) { + fprintf (stderr, + "<%d>%s%s%s\n", + priority, + log_domain != NULL? log_domain : "", + log_domain != NULL? ": " : "", + message); + fflush (stderr); + } else { + syslog (priority, + "%s%s%s\n", + log_domain != NULL? log_domain : "", + log_domain != NULL? ": " : "", + message); + } +} + +void +gdm_log_toggle_debug (void) +{ + gdm_log_set_debug (!debug_enabled); +} + +void +gdm_log_set_debug (gboolean debug) +{ + g_assert (initialized); + if (debug_enabled == debug) { + return; + } + + if (debug) { + debug_enabled = debug; + g_debug ("Enabling debugging"); + } else { + g_debug ("Disabling debugging"); + debug_enabled = debug; + } +} + +void +gdm_log_init (void) +{ + if (initialized) + return; + + initialized = TRUE; + + g_log_set_default_handler (gdm_log_default_handler, NULL); +} + +void +gdm_log_shutdown (void) +{ + if (!initialized) + return; + if (!is_sd_booted) + closelog (); + initialized = FALSE; +} + |