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/* get_env.c - A getenv() replacement.
Copyright (C) 2003, 2004 g10 Code GmbH
This file is part of GPGME.
GPGME 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 2.1 of
the License, or (at your option) any later version.
GPGME 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
Lesser 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, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
02111-1307, USA. */
#if HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include "util.h"
#if defined(HAVE_THREAD_SAFE_GETENV) || !defined (HAVE_GETENV_R)
/* We prefer using getenv() if it is thread-safe. */
/* Retrieve the environment variable NAME and return a copy of it in a
malloc()'ed buffer in *VALUE. If the environment variable is not
set, return NULL in *VALUE. */
gpgme_error_t
_gpgme_getenv (const char *name, char **value)
{
char *env_value;
env_value = getenv (name);
if (!env_value)
*value = NULL;
else
{
*value = strdup (env_value);
if (!*value)
return gpg_error_from_errno (errno);
}
return 0;
}
#else
/* FIXME: Implement this when we have the specification for it. */
#error Use of getenv_r not implemented.
#endif

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