libnfc/contrib/win32/stdlib.c
2013-07-17 13:57:56 +02:00

54 lines
1.6 KiB
C

/*-
* Free/Libre Near Field Communication (NFC) library
*
* Libnfc historical contributors:
* Copyright (C) 2009 Roel Verdult
* Copyright (C) 2009-2013 Romuald Conty
* Copyright (C) 2010-2012 Romain Tartière
* Copyright (C) 2010-2013 Philippe Teuwen
* Copyright (C) 2012-2013 Ludovic Rousseau
* See AUTHORS file for a more comprehensive list of contributors.
* Additional contributors of this file:
* Copyright (C) 2013 Alex Lian
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU Lesser 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 Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>
*
*/
/**
* @file stdlib.c
* @brief Windows System compatibility
*/
// Handle platform specific includes
#include "contrib/windows.h"
int setenv(const char *name, const char *value, int overwrite)
{
int exists = GetEnvironmentVariableA(name, NULL, 0);
if ((exists && overwrite) || (!exists)) {
if (!SetEnvironmentVariableA(name, value)) {
// Set errno here correctly
return -1;
}
return 0;
}
// Exists and overwrite is 0.
return -1;
}
void unsetenv(const char *name)
{
SetEnvironmentVariableA(name, NULL);
}