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Diffstat (limited to '')
-rw-r--r-- | src/log.c | 341 |
1 files changed, 0 insertions, 341 deletions
diff --git a/src/log.c b/src/log.c deleted file mode 100644 index 2d3c7cafd..000000000 --- a/src/log.c +++ /dev/null @@ -1,341 +0,0 @@ -/* - * Copyright (C) 2003-2011 The Music Player Daemon Project - * http://www.musicpd.org - * - * 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. - */ - -#include "config.h" -#include "log.h" -#include "conf.h" -#include "utils.h" -#include "fd_util.h" -#include "mpd_error.h" - -#include <assert.h> -#include <sys/types.h> -#include <sys/stat.h> -#include <string.h> -#include <stdarg.h> -#include <fcntl.h> -#include <stdio.h> -#include <stdlib.h> -#include <time.h> -#include <unistd.h> -#include <errno.h> -#include <glib.h> - -#ifdef HAVE_SYSLOG -#include <syslog.h> -#endif - -#undef G_LOG_DOMAIN -#define G_LOG_DOMAIN "log" - -#define LOG_LEVEL_SECURE G_LOG_LEVEL_INFO - -#define LOG_DATE_BUF_SIZE 16 -#define LOG_DATE_LEN (LOG_DATE_BUF_SIZE - 1) - -static GLogLevelFlags log_threshold = G_LOG_LEVEL_MESSAGE; - -static const char *log_charset; - -static bool stdout_mode = true; -static int out_fd; -static char *out_filename; - -static void redirect_logs(int fd) -{ - assert(fd >= 0); - if (dup2(fd, STDOUT_FILENO) < 0) - MPD_ERROR("problems dup2 stdout : %s\n", strerror(errno)); - if (dup2(fd, STDERR_FILENO) < 0) - MPD_ERROR("problems dup2 stderr : %s\n", strerror(errno)); -} - -static const char *log_date(void) -{ - static char buf[LOG_DATE_BUF_SIZE]; - time_t t = time(NULL); - strftime(buf, LOG_DATE_BUF_SIZE, "%b %d %H:%M : ", localtime(&t)); - return buf; -} - -/** - * Determines the length of the string excluding trailing whitespace - * characters. - */ -static int -chomp_length(const char *p) -{ - size_t length = strlen(p); - - while (length > 0 && g_ascii_isspace(p[length - 1])) - --length; - - return (int)length; -} - -static void -file_log_func(const gchar *log_domain, - GLogLevelFlags log_level, - const gchar *message, G_GNUC_UNUSED gpointer user_data) -{ - char *converted; - - if (log_level > log_threshold) - return; - - if (log_charset != NULL) { - converted = g_convert_with_fallback(message, -1, - log_charset, "utf-8", - NULL, NULL, NULL, NULL); - if (converted != NULL) - message = converted; - } else - converted = NULL; - - if (log_domain == NULL) - log_domain = ""; - - fprintf(stderr, "%s%s%s%.*s\n", - stdout_mode ? "" : log_date(), - log_domain, *log_domain == 0 ? "" : ": ", - chomp_length(message), message); - - g_free(converted); -} - -static void -log_init_stdout(void) -{ - g_log_set_default_handler(file_log_func, NULL); -} - -static int -open_log_file(void) -{ - assert(out_filename != NULL); - - return open_cloexec(out_filename, O_CREAT | O_WRONLY | O_APPEND, 0666); -} - -static bool -log_init_file(unsigned line, GError **error_r) -{ - assert(out_filename != NULL); - - out_fd = open_log_file(); - if (out_fd < 0) { - g_set_error(error_r, log_quark(), errno, - "failed to open log file \"%s\" (config line %u): %s", - out_filename, line, g_strerror(errno)); - return false; - } - - g_log_set_default_handler(file_log_func, NULL); - return true; -} - -#ifdef HAVE_SYSLOG - -static int -glib_to_syslog_level(GLogLevelFlags log_level) -{ - switch (log_level & G_LOG_LEVEL_MASK) { - case G_LOG_LEVEL_ERROR: - case G_LOG_LEVEL_CRITICAL: - return LOG_ERR; - - case G_LOG_LEVEL_WARNING: - return LOG_WARNING; - - case G_LOG_LEVEL_MESSAGE: - return LOG_NOTICE; - - case G_LOG_LEVEL_INFO: - return LOG_INFO; - - case G_LOG_LEVEL_DEBUG: - return LOG_DEBUG; - - default: - return LOG_NOTICE; - } -} - -static void -syslog_log_func(const gchar *log_domain, - GLogLevelFlags log_level, const gchar *message, - G_GNUC_UNUSED gpointer user_data) -{ - if (stdout_mode) { - /* fall back to the file log function during - startup */ - file_log_func(log_domain, log_level, - message, user_data); - return; - } - - if (log_level > log_threshold) - return; - - if (log_domain == NULL) - log_domain = ""; - - syslog(glib_to_syslog_level(log_level), "%s%s%.*s", - log_domain, *log_domain == 0 ? "" : ": ", - chomp_length(message), message); -} - -static void -log_init_syslog(void) -{ - assert(out_filename == NULL); - - openlog(PACKAGE, 0, LOG_DAEMON); - g_log_set_default_handler(syslog_log_func, NULL); -} - -#endif - -static inline GLogLevelFlags -parse_log_level(const char *value, unsigned line) -{ - if (0 == strcmp(value, "default")) - return G_LOG_LEVEL_MESSAGE; - if (0 == strcmp(value, "secure")) - return LOG_LEVEL_SECURE; - else if (0 == strcmp(value, "verbose")) - return G_LOG_LEVEL_DEBUG; - else { - MPD_ERROR("unknown log level \"%s\" at line %u\n", - value, line); - return G_LOG_LEVEL_MESSAGE; - } -} - -void -log_early_init(bool verbose) -{ - if (verbose) - log_threshold = G_LOG_LEVEL_DEBUG; - - log_init_stdout(); -} - -bool -log_init(bool verbose, bool use_stdout, GError **error_r) -{ - const struct config_param *param; - - g_get_charset(&log_charset); - - if (verbose) - log_threshold = G_LOG_LEVEL_DEBUG; - else if ((param = config_get_param(CONF_LOG_LEVEL)) != NULL) - log_threshold = parse_log_level(param->value, param->line); - - if (use_stdout) { - log_init_stdout(); - return true; - } else { - param = config_get_param(CONF_LOG_FILE); - if (param == NULL) { -#ifdef HAVE_SYSLOG - /* no configuration: default to syslog (if - available) */ - log_init_syslog(); - return true; -#else - g_set_error(error_r, log_quark(), 0, - "config parameter \"%s\" not found", - CONF_LOG_FILE); - return false; -#endif -#ifdef HAVE_SYSLOG - } else if (strcmp(param->value, "syslog") == 0) { - log_init_syslog(); - return true; -#endif - } else { - out_filename = config_dup_path(CONF_LOG_FILE, error_r); - return out_filename != NULL && - log_init_file(param->line, error_r); - } - } -} - -static void -close_log_files(void) -{ - if (stdout_mode) - return; - -#ifdef HAVE_SYSLOG - if (out_filename == NULL) - closelog(); -#endif -} - -void -log_deinit(void) -{ - close_log_files(); - g_free(out_filename); -} - - -void setup_log_output(bool use_stdout) -{ - fflush(NULL); - if (!use_stdout) { -#ifndef WIN32 - if (out_filename == NULL) - out_fd = open("/dev/null", O_WRONLY); -#endif - - if (out_fd >= 0) { - redirect_logs(out_fd); - close(out_fd); - } - - stdout_mode = false; - log_charset = NULL; - } -} - -int cycle_log_files(void) -{ - int fd; - - if (stdout_mode || out_filename == NULL) - return 0; - assert(out_filename); - - g_debug("Cycling log files...\n"); - close_log_files(); - - fd = open_log_file(); - if (fd < 0) { - g_warning("error re-opening log file: %s\n", out_filename); - return -1; - } - - redirect_logs(fd); - g_debug("Done cycling log files\n"); - return 0; -} |