[134] | 1 | /* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*- |
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| 2 | * |
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| 3 | * Copyright (C) 2007 William Jon McCann <mccann@jhu.edu> |
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| 4 | * |
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| 5 | * This program is free software; you can redistribute it and/or modify |
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| 6 | * it under the terms of the GNU General Public License as published by |
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| 7 | * the Free Software Foundation; either version 2 of the License, or |
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| 8 | * (at your option) any later version. |
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| 9 | * |
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| 10 | * This program is distributed in the hope that it will be useful, |
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| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 13 | * GNU General Public License for more details. |
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| 14 | * |
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| 15 | * You should have received a copy of the GNU General Public License |
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| 16 | * along with this program; if not, write to the Free Software |
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| 17 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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| 18 | * |
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| 19 | * Authors: William Jon McCann <mccann@jhu.edu> |
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| 20 | * |
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| 21 | */ |
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| 22 | |
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| 23 | #include "config.h" |
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| 24 | |
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| 25 | #include <stdio.h> |
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| 26 | #include <string.h> |
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| 27 | #include <stdarg.h> |
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| 28 | #include <signal.h> |
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| 29 | #include <time.h> |
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| 30 | #include <unistd.h> |
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| 31 | |
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| 32 | #include <syslog.h> |
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| 33 | |
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| 34 | #include <glib.h> |
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| 35 | #include <glib/gstdio.h> |
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| 36 | |
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| 37 | #include "gdm-log.h" |
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| 38 | |
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| 39 | static gboolean initialized = FALSE; |
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| 40 | static int syslog_levels = (G_LOG_LEVEL_ERROR | G_LOG_LEVEL_CRITICAL | G_LOG_LEVEL_WARNING); |
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| 41 | |
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| 42 | static void |
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| 43 | log_level_to_priority_and_prefix (GLogLevelFlags log_level, |
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| 44 | int *priorityp, |
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| 45 | const char **prefixp) |
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| 46 | { |
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| 47 | int priority; |
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| 48 | const char *prefix; |
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| 49 | |
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| 50 | /* Process the message prefix and priority */ |
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| 51 | switch (log_level & G_LOG_LEVEL_MASK) { |
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| 52 | case G_LOG_FLAG_FATAL: |
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| 53 | priority = LOG_EMERG; |
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| 54 | prefix = "FATAL"; |
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| 55 | break; |
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| 56 | case G_LOG_LEVEL_ERROR: |
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| 57 | priority = LOG_ERR; |
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| 58 | prefix = "ERROR"; |
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| 59 | break; |
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| 60 | case G_LOG_LEVEL_CRITICAL: |
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| 61 | priority = LOG_CRIT; |
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| 62 | prefix = "CRITICAL"; |
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| 63 | break; |
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| 64 | case G_LOG_LEVEL_WARNING: |
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| 65 | priority = LOG_WARNING; |
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| 66 | prefix = "WARNING"; |
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| 67 | break; |
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| 68 | case G_LOG_LEVEL_MESSAGE: |
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| 69 | priority = LOG_NOTICE; |
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| 70 | prefix = "MESSAGE"; |
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| 71 | break; |
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| 72 | case G_LOG_LEVEL_INFO: |
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| 73 | priority = LOG_INFO; |
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| 74 | prefix = "INFO"; |
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| 75 | break; |
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| 76 | case G_LOG_LEVEL_DEBUG: |
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| 77 | /* if debug was requested then bump this up to ERROR |
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| 78 | * to ensure it is seen in a log */ |
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| 79 | if (syslog_levels & G_LOG_LEVEL_DEBUG) { |
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| 80 | priority = LOG_WARNING; |
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| 81 | prefix = "DEBUG(+)"; |
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| 82 | } else { |
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| 83 | priority = LOG_DEBUG; |
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| 84 | prefix = "DEBUG"; |
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| 85 | } |
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| 86 | break; |
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| 87 | default: |
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| 88 | priority = LOG_DEBUG; |
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| 89 | prefix = "UNKNOWN"; |
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| 90 | break; |
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| 91 | } |
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| 92 | |
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| 93 | if (priorityp != NULL) { |
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| 94 | *priorityp = priority; |
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| 95 | } |
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| 96 | if (prefixp != NULL) { |
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| 97 | *prefixp = prefix; |
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| 98 | } |
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| 99 | } |
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| 100 | |
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| 101 | void |
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| 102 | gdm_log_default_handler (const gchar *log_domain, |
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| 103 | GLogLevelFlags log_level, |
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| 104 | const gchar *message, |
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| 105 | gpointer unused_data) |
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| 106 | { |
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| 107 | GString *gstring; |
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| 108 | int priority; |
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| 109 | const char *level_prefix; |
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| 110 | char *string; |
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| 111 | gboolean do_log; |
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| 112 | gboolean is_fatal; |
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| 113 | |
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| 114 | is_fatal = (log_level & G_LOG_FLAG_FATAL) != 0; |
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| 115 | |
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| 116 | do_log = (log_level & syslog_levels); |
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| 117 | if (! do_log) { |
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| 118 | return; |
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| 119 | } |
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| 120 | |
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| 121 | if (! initialized) { |
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| 122 | gdm_log_init (); |
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| 123 | } |
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| 124 | |
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| 125 | log_level_to_priority_and_prefix (log_level, |
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| 126 | &priority, |
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| 127 | &level_prefix); |
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| 128 | |
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| 129 | gstring = g_string_new (NULL); |
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| 130 | |
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| 131 | if (log_domain != NULL) { |
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| 132 | g_string_append (gstring, log_domain); |
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| 133 | g_string_append_c (gstring, '-'); |
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| 134 | } |
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| 135 | g_string_append (gstring, level_prefix); |
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| 136 | |
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| 137 | g_string_append (gstring, ": "); |
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| 138 | if (message == NULL) { |
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| 139 | g_string_append (gstring, "(NULL) message"); |
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| 140 | } else { |
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| 141 | g_string_append (gstring, message); |
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| 142 | } |
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| 143 | if (is_fatal) { |
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| 144 | g_string_append (gstring, "\naborting...\n"); |
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| 145 | } else { |
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| 146 | g_string_append (gstring, "\n"); |
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| 147 | } |
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| 148 | |
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| 149 | string = g_string_free (gstring, FALSE); |
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| 150 | |
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| 151 | syslog (priority, "%s", string); |
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| 152 | |
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| 153 | g_free (string); |
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| 154 | } |
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| 155 | |
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| 156 | void |
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| 157 | gdm_log_toggle_debug (void) |
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| 158 | { |
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| 159 | if (syslog_levels & G_LOG_LEVEL_DEBUG) { |
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| 160 | g_debug ("Debugging disabled"); |
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| 161 | syslog_levels &= ~G_LOG_LEVEL_DEBUG; |
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| 162 | } else { |
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| 163 | syslog_levels |= G_LOG_LEVEL_DEBUG; |
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| 164 | g_debug ("Debugging enabled"); |
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| 165 | } |
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| 166 | } |
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| 167 | |
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| 168 | void |
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| 169 | gdm_log_set_debug (gboolean debug) |
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| 170 | { |
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| 171 | if (debug) { |
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| 172 | syslog_levels |= G_LOG_LEVEL_DEBUG; |
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| 173 | g_debug ("Enabling debugging"); |
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| 174 | } else { |
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| 175 | g_debug ("Disabling debugging"); |
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| 176 | syslog_levels &= ~G_LOG_LEVEL_DEBUG; |
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| 177 | } |
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| 178 | } |
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| 179 | |
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| 180 | void |
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| 181 | gdm_log_init (void) |
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| 182 | { |
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| 183 | const char *prg_name; |
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| 184 | int options; |
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| 185 | |
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| 186 | g_log_set_default_handler (gdm_log_default_handler, NULL); |
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| 187 | |
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| 188 | prg_name = g_get_prgname (); |
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| 189 | |
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| 190 | options = LOG_PID; |
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| 191 | #ifdef LOG_PERROR |
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| 192 | options |= LOG_PERROR; |
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| 193 | #endif |
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| 194 | |
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| 195 | openlog (prg_name, options, LOG_DAEMON); |
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| 196 | |
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| 197 | initialized = TRUE; |
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| 198 | } |
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| 199 | |
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| 200 | void |
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| 201 | gdm_log_shutdown (void) |
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| 202 | { |
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| 203 | closelog (); |
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| 204 | initialized = FALSE; |
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| 205 | } |
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| 206 | |
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