+
−/* Look up an environment variable more securely.
+
−
+
−   Copyright 2013 Free Software Foundation, Inc.
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−
+
−   This program 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 published
+
−   by the Free Software Foundation; either version 3 of the License, or
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−   (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
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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.
+
−
+
−   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/>.  */
+
−
+
−#include <config.h>
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−
+
−#include <stdlib.h>
+
−
+
−#if !HAVE___SECURE_GETENV
+
−# if HAVE_ISSETUGID
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−#  include <unistd.h>
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−# else
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−#  undef issetugid
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−#  define issetugid() 1
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−# endif
+
−#endif
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−
+
−char *
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−secure_getenv (char const *name)
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−{
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−#if HAVE___SECURE_GETENV
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−  return __secure_getenv (name);
+
−#else
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−  if (issetugid ())
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−    return 0;
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−  return getenv (name);
+
−#endif
+
−}