Mercurial > gnulib
view tests/test-setenv.c @ 40196:e63f5d3edab5
relocatable-prog: Update documentation.
* doc/relocatable-maint.texi (Supporting Relocation): Update to match
the recent changes.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Sun, 24 Feb 2019 01:49:15 +0100 |
parents | b06060465f09 |
children |
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/* Tests of setenv. Copyright (C) 2009-2019 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 <https://www.gnu.org/licenses/>. */ /* Written by Eric Blake <ebb9@byu.net>, 2009. */ #include <config.h> #include <stdlib.h> #include "signature.h" SIGNATURE_CHECK (setenv, int, (char const *, char const *, int)); #include <errno.h> #include <string.h> #include <unistd.h> #include "macros.h" int main (void) { /* Test overwriting. */ ASSERT (setenv ("a", "==", -1) == 0); ASSERT (setenv ("a", "2", 0) == 0); ASSERT (strcmp (getenv ("a"), "==") == 0); /* Required to fail with EINVAL. */ errno = 0; ASSERT (setenv ("", "", 1) == -1); ASSERT (errno == EINVAL); errno = 0; ASSERT (setenv ("a=b", "", 0) == -1); ASSERT (errno == EINVAL); #if 0 /* glibc and gnulib's implementation guarantee this, but POSIX no longer requires it: http://austingroupbugs.net/view.php?id=185 */ errno = 0; ASSERT (setenv (NULL, "", 0) == -1); ASSERT (errno == EINVAL); #endif return 0; }