From ffccd5b2b05243e7976db80f90f453dccfae9886 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Mon, 15 Apr 2024 22:22:03 +0200 Subject: Adding upstream version 3:4.8.30. Signed-off-by: Daniel Baumann --- lib/logging.c | 168 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 168 insertions(+) create mode 100644 lib/logging.c (limited to 'lib/logging.c') diff --git a/lib/logging.c b/lib/logging.c new file mode 100644 index 0000000..6dd0731 --- /dev/null +++ b/lib/logging.c @@ -0,0 +1,168 @@ +/* + Provides a log file to ease tracing the program. + + Copyright (C) 2006-2023 + Free Software Foundation, Inc. + + Written by: + Roland Illig , 2006 + Slava Zanko , 2009, 2011 + + This file is part of the Midnight Commander. + + The Midnight Commander 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 3 of the License, + or (at your option) any later version. + + The Midnight Commander 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, see . + */ + +/** \file logging.c + * \brief Source: provides a log file to ease tracing the program + */ + +#include + +#include +#include + +#include "lib/global.h" +#include "lib/mcconfig.h" +#include "lib/fileloc.h" + +#include "logging.h" + +/*** global variables ****************************************************************************/ + +/*** file scope macro definitions ****************************************************************/ + +#define CONFIG_GROUP_NAME "Development" +#define CONFIG_KEY_NAME "logging" +#define CONFIG_KEY_NAME_FILE "logfile" + +/*** file scope type declarations ****************************************************************/ + +/*** forward declarations (file scope functions) *************************************************/ + +/*** file scope variables ************************************************************************/ + +static gboolean logging_initialized = FALSE; +static gboolean logging_enabled = FALSE; + +/* --------------------------------------------------------------------------------------------- */ +/*** file scope functions ************************************************************************/ +/* --------------------------------------------------------------------------------------------- */ + +static gboolean +is_logging_enabled_from_env (void) +{ + const char *env_is_enabled; + + env_is_enabled = g_getenv ("MC_LOG_ENABLE"); + if (env_is_enabled == NULL) + return FALSE; + + logging_enabled = (*env_is_enabled == '1' || g_ascii_strcasecmp (env_is_enabled, "true") == 0); + logging_initialized = TRUE; + return TRUE; +} + +/* --------------------------------------------------------------------------------------------- */ + +static gboolean +is_logging_enabled (void) +{ + + if (logging_initialized) + return logging_enabled; + + if (is_logging_enabled_from_env ()) + return logging_enabled; + + logging_enabled = + mc_config_get_bool (mc_global.main_config, CONFIG_GROUP_NAME, CONFIG_KEY_NAME, FALSE); + logging_initialized = TRUE; + + return logging_enabled; +} + +/* --------------------------------------------------------------------------------------------- */ + +static char * +get_log_filename (void) +{ + const char *env_filename; + + env_filename = g_getenv ("MC_LOG_FILE"); + if (env_filename != NULL) + return g_strdup (env_filename); + + if (mc_config_has_param (mc_global.main_config, CONFIG_GROUP_NAME, CONFIG_KEY_NAME_FILE)) + return mc_config_get_string (mc_global.main_config, CONFIG_GROUP_NAME, CONFIG_KEY_NAME_FILE, + NULL); + + return mc_config_get_full_path ("mc.log"); +} + +/* --------------------------------------------------------------------------------------------- */ + +static void +G_GNUC_PRINTF (1, 0) +mc_va_log (const char *fmt, va_list args) +{ + char *logfilename; + + logfilename = get_log_filename (); + + if (logfilename != NULL) + { + FILE *f; + + f = fopen (logfilename, "a"); + if (f != NULL) + { + (void) vfprintf (f, fmt, args); + (void) fclose (f); + } + g_free (logfilename); + } + +} + +/* --------------------------------------------------------------------------------------------- */ +/*** public functions ****************************************************************************/ +/* --------------------------------------------------------------------------------------------- */ + +void +mc_log (const char *fmt, ...) +{ + va_list args; + + if (!is_logging_enabled ()) + return; + + va_start (args, fmt); + mc_va_log (fmt, args); + va_end (args); +} + +/* --------------------------------------------------------------------------------------------- */ + +void +mc_always_log (const char *fmt, ...) +{ + va_list args; + + va_start (args, fmt); + mc_va_log (fmt, args); + va_end (args); +} + +/* --------------------------------------------------------------------------------------------- */ -- cgit v1.2.3