| xf.li | bdd93d5 | 2023-05-12 07:10:14 -0700 | [diff] [blame^] | 1 | /* Copyright (C) 2004-2016 Free Software Foundation, Inc. |
| 2 | This file is part of the GNU C Library. |
| 3 | Contributed by Jakub Jelinek <jakub@redhat.com>, 2004. |
| 4 | |
| 5 | The GNU C Library is free software; you can redistribute it and/or |
| 6 | modify it under the terms of the GNU Lesser General Public |
| 7 | License as published by the Free Software Foundation; either |
| 8 | version 2.1 of the License, or (at your option) any later version. |
| 9 | |
| 10 | The GNU C Library is distributed in the hope that it will be useful, |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 13 | Lesser General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU Lesser General Public |
| 16 | License along with the GNU C Library; if not, see |
| 17 | <http://www.gnu.org/licenses/>. */ |
| 18 | |
| 19 | #include <errno.h> |
| 20 | #include <mqueue.h> |
| 21 | #include <stdio.h> |
| 22 | #include <stdlib.h> |
| 23 | #include <string.h> |
| 24 | #include <unistd.h> |
| 25 | #include "tst-mqueue.h" |
| 26 | |
| 27 | #define TEST_FUNCTION do_test () |
| 28 | static int |
| 29 | do_test (void) |
| 30 | { |
| 31 | if (geteuid () != 0) |
| 32 | { |
| 33 | puts ("this test requires root"); |
| 34 | return 0; |
| 35 | } |
| 36 | |
| 37 | char name[sizeof "/tst-mqueue9-" + sizeof (pid_t) * 3]; |
| 38 | snprintf (name, sizeof (name), "/tst-mqueue9-%u", getpid ()); |
| 39 | |
| 40 | struct mq_attr attr = { .mq_maxmsg = 1, .mq_msgsize = 1 }; |
| 41 | mqd_t q = mq_open (name, O_CREAT | O_EXCL | O_RDWR, 0600, &attr); |
| 42 | |
| 43 | if (q == (mqd_t) -1) |
| 44 | { |
| 45 | printf ("mq_open failed with: %m\n"); |
| 46 | return 0; |
| 47 | } |
| 48 | else |
| 49 | add_temp_mq (name); |
| 50 | |
| 51 | if (seteuid (1) != 0) |
| 52 | { |
| 53 | printf ("failed to seteuid (1): %m\n"); |
| 54 | mq_unlink (name); |
| 55 | return 0; |
| 56 | } |
| 57 | |
| 58 | int result = 0; |
| 59 | if (mq_unlink (name) == 0) |
| 60 | { |
| 61 | puts ("mq_unlink unexpectedly succeeded"); |
| 62 | result = 1; |
| 63 | } |
| 64 | else if (errno != EACCES) |
| 65 | { |
| 66 | printf ("mq_unlink did not fail with EACCES: %m\n"); |
| 67 | result = 1;; |
| 68 | } |
| 69 | |
| 70 | if (seteuid (0) != 0) |
| 71 | { |
| 72 | printf ("failed to seteuid (0): %m\n"); |
| 73 | result = 1; |
| 74 | } |
| 75 | |
| 76 | if (mq_unlink (name) != 0) |
| 77 | { |
| 78 | printf ("mq_unlink failed with: %m\n"); |
| 79 | result = 1; |
| 80 | } |
| 81 | |
| 82 | if (mq_close (q) != 0) |
| 83 | { |
| 84 | printf ("mq_close failed with: %m\n"); |
| 85 | result = 1; |
| 86 | } |
| 87 | |
| 88 | return result; |
| 89 | } |
| 90 | |
| 91 | #include "../test-skeleton.c" |