/*
* This file is part of the Atomiks project
* Copyright (C) Mateusz Viste 2013
*
* opens and provides a file descriptor to the
* application's configuration file. multiplatform.
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*/
#include <stdio.h> /* FILE */
#include <stdlib.h> /* getenv(), NULL */
/* mode is the fopen file mode to use (eg. "rb"). appname is the short name of your app (eg. "atomiks"). Returns an open FD ready to use, or NULL on failure */
FILE *cfg_fopen(char *mode, char *appname) {
char *tmpvar;
char filepath[4096], shortname[256];
FILE *fd;
if ((mode == NULL) || (appname == NULL)) return(NULL);
tmpvar = getenv("APPDATA"); /* Windows */
if (tmpvar != NULL) {
snprintf(shortname, 256, "%s.cfg", appname);
} else {
tmpvar = getenv("HOME"); /* Linux/BSD */
if (tmpvar == NULL) return(NULL);
snprintf(shortname, 256, ".%s.conf", appname);
}
snprintf(filepath, 4096, "%s/%s", tmpvar, shortname);
fd = fopen(filepath, mode);
return(fd);
}