diff options
author | Bruno Haible <bruno@clisp.org> | 2008-02-24 16:58:50 +0100 |
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committer | Bruno Haible <bruno@clisp.org> | 2008-02-24 16:58:50 +0100 |
commit | 6e99bc9747348fcd46114c91d77f3fb97641291d (patch) | |
tree | a5d6053123748cb9881f7f8d3afa0a188304c0b2 /tests/test-environ.c | |
parent | 97f93a774721a888aa56466930c662c41784f526 (diff) | |
download | gnulib-6e99bc9747348fcd46114c91d77f3fb97641291d.tar.gz |
Tests for module 'environ'.
Diffstat (limited to 'tests/test-environ.c')
-rw-r--r-- | tests/test-environ.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/tests/test-environ.c b/tests/test-environ.c new file mode 100644 index 0000000000..3924288e80 --- /dev/null +++ b/tests/test-environ.c @@ -0,0 +1,45 @@ +/* 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 <stdlib.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; +} |