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/* get_env.c - A getenv() replacement.
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Copyright (C) 2003, 2004 g10 Code GmbH
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This file is part of GPGME.
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GPGME is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as
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published by the Free Software Foundation; either version 2.1 of
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the License, or (at your option) any later version.
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GPGME is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301, USA. */
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#if HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <stdlib.h>
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#include <errno.h>
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#include <string.h>
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#include "util.h"
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#if defined(HAVE_THREAD_SAFE_GETENV) || !defined (HAVE_GETENV_R)
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/* We prefer using getenv() if it is thread-safe. */
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/* Retrieve the environment variable NAME and return a copy of it in a
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malloc()'ed buffer in *VALUE. If the environment variable is not
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set, return NULL in *VALUE. */
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gpgme_error_t
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_gpgme_getenv (const char *name, char **value)
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{
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char *env_value;
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env_value = getenv (name);
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if (!env_value)
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*value = NULL;
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else
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{
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*value = strdup (env_value);
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if (!*value)
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return gpg_error_from_errno (errno);
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}
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return 0;
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}
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#else
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/* FIXME: Implement this when we have the specification for it. */
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#error Use of getenv_r not implemented.
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#endif
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