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diff lib/secure_getenv.c @ 17313:8108e0239bb6

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secure_getenv: new module * MODULES.html.sh (Extra functions based on ANSI C 89): Add secure_getenv. * doc/glibc-functions/secure_getenv.texi: New file. * doc/gnulib.texi: Include it. * lib/secure_getenv.c, m4/secure_getenv.m4, modules/secure_getenv: New files. * lib/stdlib.in.h (secure_getenv): New decl. * m4/stdlib_h.m4 (gl_STDLIB_H, gl_STDLIB_H_DEFAULTS): * modules/stdlib (stdlib.h): Add secure_getenv checks.
author Paul Eggert <eggert@cs.ucla.edu>
date Mon, 04 Feb 2013 18:33:23 -0800
parents
children d77c98cd7cfd
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/lib/secure_getenv.c	Mon Feb 04 18:33:23 2013 -0800
@@ -0,0 +1,28 @@
+/* Look up an environment variable more securely.
+
+   Copyright 2013 Free Software Foundation, Inc.
+
+   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
+   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 <stdlib.h>
+
+char *
+secure_getenv (char const *name)
+{
+#if HAVE___SECURE_GETENV
+  return __secure_getenv (name);
+#else
+  return 0;
+#endif
+}