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/*
This file is part of GNUnet.
Copyright (C) 2006, 2007, 2008, 2009, 2013 GNUnet e.V.
GNUnet is free software: you can redistribute it and/or modify it
under the terms of the GNU Affero General Public License as published
by the Free Software Foundation, either version 3 of the License,
or (at your option) any later version.
GNUnet 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
Affero General Public License for more details.
*/
/**
* @file src/util/configuration_loader.c
* @brief configuration loading
* @author Christian Grothoff
*/
#include "platform.h"
#include "gnunet_util_lib.h"
#define LOG(kind,...) GNUNET_log_from (kind, "util-configuration", __VA_ARGS__)
/**
* Load configuration (starts with defaults, then loads
* system-specific configuration).
*
* @param cfg configuration to update
* @param filename name of the configuration file, NULL to load defaults
* @return #GNUNET_OK on success, #GNUNET_SYSERR on error
*/
int
GNUNET_CONFIGURATION_load (struct GNUNET_CONFIGURATION_Handle *cfg,
const char *filename)
{
char *baseconfig;
const char *base_config_varname;
base_config_varname = GNUNET_OS_project_data_get ()->base_config_varname;
if (NULL != (baseconfig = getenv (base_config_varname)))
{
baseconfig = GNUNET_strdup (baseconfig);
}
else
{
char *ipath;
ipath = GNUNET_OS_installation_get_path (GNUNET_OS_IPK_DATADIR);
if (NULL == ipath)
return GNUNET_SYSERR;
GNUNET_asprintf (&baseconfig, "%s%s", ipath, "config.d");
GNUNET_free (ipath);
}
if (GNUNET_SYSERR ==
GNUNET_CONFIGURATION_load_from (cfg,
baseconfig))
{
GNUNET_free (baseconfig);
return GNUNET_SYSERR; /* no configuration at all found */
}
GNUNET_free (baseconfig);
if ((NULL != filename) &&
(GNUNET_OK != GNUNET_CONFIGURATION_parse (cfg, filename)))
{
/* specified configuration not found */
return GNUNET_SYSERR;
}
if (((GNUNET_YES !=
GNUNET_CONFIGURATION_have_value (cfg, "PATHS", "DEFAULTCONFIG"))) &&
(filename != NULL))
GNUNET_CONFIGURATION_set_value_string (cfg, "PATHS", "DEFAULTCONFIG",
filename);
return GNUNET_OK;
}
/* end of configuration_loader.c */
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