Mercurial > hg > octave-lyh > gnulib-hg
changeset 9723:94c1e59b5b14
Tests for module 'environ'.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Sun, 24 Feb 2008 16:58:50 +0100 |
parents | bf2be774be35 |
children | 437f6b35e0e5 |
files | ChangeLog modules/environ-tests tests/test-environ.c |
diffstat | 3 files changed, 59 insertions(+), 0 deletions(-) [+] |
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--- a/ChangeLog +++ b/ChangeLog @@ -1,5 +1,8 @@ 2008-02-24 Bruno Haible <bruno@clisp.org> + * modules/environ-tests: New file. + * tests/test-environ.c: New file. + New module 'environ'. * modules/environ: New file. * lib/unistd.in.h (environ): New declaration.
new file mode 100644 --- /dev/null +++ b/modules/environ-tests @@ -0,0 +1,11 @@ +Files: +tests/test-environ.c + +Depends-on: + +configure.ac: + +Makefile.am: +TESTS += test-environ +check_PROGRAMS += test-environ +
new file mode 100644 --- /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; +}