| /* Test that passing a NULL value does not hang environment traversal in |
| tunables. |
| Copyright (C) 2017-2018 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| |
| The GNU C Library 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 2.1 of the License, or (at your option) any later version. |
| |
| The GNU C Library 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 the GNU C Library; if not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| /* The test is useful only when the source is configured with |
| --enable-hardcoded-path-in-tests since otherwise the execve just picks up |
| the system dynamic linker. */ |
| |
| #include <stdlib.h> |
| #include <stdio.h> |
| #include <unistd.h> |
| #include <errno.h> |
| |
| static int |
| do_test (int argc, char **argv) |
| { |
| if (argc == 2) |
| return 0; |
| |
| char envname[] = "FOOBAR"; |
| char *filename = program_invocation_name; |
| char *newargv[] = {filename, filename, NULL}; |
| char *newenviron[] = {envname, NULL}; |
| |
| /* This was reported in Fedora: |
| |
| https://bugzilla.redhat.com/show_bug.cgi?id=1414589 |
| |
| If one of the environment variables has no value, then the environment |
| traversal must skip and also advance to the next environment entry. The |
| bug in question would cause this test to hang in an infinite loop. */ |
| int ret = execve (filename, newargv, newenviron); |
| |
| if (ret != 0) |
| printf ("execve failed: %m"); |
| |
| /* We will reach here only if we fail execve. */ |
| return 1; |
| } |
| |
| #define TIMEOUT 3 |
| #define TEST_FUNCTION_ARGV do_test |
| #include <support/test-driver.c> |