X-Git-Url: http://git.hcoop.net/bpt/guile.git/blobdiff_plain/b0a31499554fb69160b18ccefac89eec4954e488..f9d4a040b4719fca2a433c01b680679d155ec981:/lib/secure_getenv.c
diff --git a/lib/secure_getenv.c b/lib/secure_getenv.c
new file mode 100644
index 000000000..7b86173bb
--- /dev/null
+++ b/lib/secure_getenv.c
@@ -0,0 +1,41 @@
+/* Look up an environment variable more securely.
+
+ Copyright 2013-2014 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 . */
+
+#include
+
+#include
+
+#if !HAVE___SECURE_GETENV
+# if HAVE_ISSETUGID
+# include
+# else
+# undef issetugid
+# define issetugid() 1
+# endif
+#endif
+
+char *
+secure_getenv (char const *name)
+{
+#if HAVE___SECURE_GETENV
+ return __secure_getenv (name);
+#else
+ if (issetugid ())
+ return 0;
+ return getenv (name);
+#endif
+}