| Dmitry V. Levin | 281e457 | 2016-04-18 15:59:28 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Check decoding of setfsuid/setfsgid/setfsuid32/setfsgid32 syscalls. |
| 3 | * |
| 4 | * Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org> |
| 5 | * All rights reserved. |
| 6 | * |
| 7 | * Redistribution and use in source and binary forms, with or without |
| 8 | * modification, are permitted provided that the following conditions |
| 9 | * are met: |
| 10 | * 1. Redistributions of source code must retain the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer. |
| 12 | * 2. Redistributions in binary form must reproduce the above copyright |
| 13 | * notice, this list of conditions and the following disclaimer in the |
| 14 | * documentation and/or other materials provided with the distribution. |
| 15 | * 3. The name of the author may not be used to endorse or promote products |
| 16 | * derived from this software without specific prior written permission. |
| 17 | * |
| 18 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| 19 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 20 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| 21 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 22 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 23 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 27 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 28 | */ |
| 29 | |
| 30 | #include <stdio.h> |
| 31 | #include <unistd.h> |
| 32 | |
| 33 | int |
| 34 | main(void) |
| 35 | { |
| 36 | unsigned int ugid = GETUGID; |
| 37 | |
| 38 | const long tests[] = { |
| 39 | ugid, |
| 40 | 0xffff0000U | ugid, |
| 41 | (unsigned long) 0xffffffff00000000ULL | ugid, |
| 42 | 0xffffU, |
| 43 | -1U, |
| 44 | -1L, |
| 45 | 0xc0deffffU, |
| 46 | 0xfacefeedU, |
| 47 | (long) 0xfacefeeddeadbeefULL |
| 48 | }; |
| 49 | |
| 50 | unsigned int i; |
| 51 | |
| 52 | for (i = 0; i < ARRAY_SIZE(tests); ++i) { |
| 53 | const unsigned int num = (unsigned UGID_TYPE) tests[i]; |
| 54 | unsigned int rc; |
| 55 | |
| 56 | rc = syscall(SYSCALL_NR, tests[i]); |
| 57 | printf("%s(%u) = %u\n", SYSCALL_NAME, num, rc); |
| 58 | |
| 59 | rc = syscall(SYSCALL_NR, ugid); |
| 60 | printf("%s(%u) = %u\n", SYSCALL_NAME, ugid, rc); |
| 61 | } |
| 62 | |
| 63 | puts("+++ exited with 0 +++"); |
| 64 | return 0; |
| 65 | } |