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authorAndreas Rottmann <a.rottmann@gmx.at>2009-09-14 12:32:44 +0200
committerAndreas Rottmann <a.rottmann@gmx.at>2009-09-14 12:32:44 +0200
commitfa095a4504cbe668e4244547e2c141597bea4ecf (patch)
tree06135820a286ffec47804e75fbf8a147e92acd2e /tests/test-environ.c
Imported Upstream version 0.9.1upstream/0.9.1
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diff --git a/tests/test-environ.c b/tests/test-environ.c
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+/* Test of environ variable.
+ Copyright (C) 2008 Free Software Foundation, Inc.
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU 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 General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2008. */
+
+#include <config.h>
+
+#include <unistd.h>
+
+#include <string.h>
+
+int
+main ()
+{
+ /* The environment variables that are set even in the weirdest situations
+ are HOME and PATH.
+ POSIX says that HOME is initialized by the system, and that PATH may be
+ unset. But in practice it's more frequent to see HOME unset and PATH
+ set. So we test the presence of PATH. */
+ char **remaining_variables = environ;
+ char *string;
+
+ for (; (string = *remaining_variables) != NULL; remaining_variables++)
+ {
+ if (strncmp (string, "PATH=", 5) == 0)
+ /* Found the PATH environment variable. */
+ return 0;
+ }
+ /* Failed to find the PATH environment variable. */
+ return 1;
+}