1 /* 2 * Check decoding of getresuid/getresgid/getresuid32/getresgid32 syscalls. 3 * 4 * Copyright (c) 2016 Dmitry V. Levin <ldv (at) 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 <assert.h> 31 #include <stdio.h> 32 #include <unistd.h> 33 34 int 35 main(void) 36 { 37 unsigned UGID_TYPE *const r = tail_alloc(sizeof(*r)); 38 unsigned UGID_TYPE *const e = tail_alloc(sizeof(*e)); 39 unsigned UGID_TYPE *const s = tail_alloc(sizeof(*s)); 40 41 if (syscall(SYSCALL_NR, r, e, s)) 42 perror_msg_and_fail(SYSCALL_NAME); 43 44 printf("%s([%u], [%u], [%u]) = 0\n", SYSCALL_NAME, 45 (unsigned) *r, (unsigned) *e, (unsigned) *s); 46 47 assert(syscall(SYSCALL_NR, NULL, e, s) == -1); 48 printf("%s(NULL, %p, %p) = -1 EFAULT (%m)\n", SYSCALL_NAME, e, s); 49 50 assert(syscall(SYSCALL_NR, r, NULL, s) == -1); 51 printf("%s(%p, NULL, %p) = -1 EFAULT (%m)\n", SYSCALL_NAME, r, s); 52 53 assert(syscall(SYSCALL_NR, r, e, NULL) == -1); 54 printf("%s(%p, %p, NULL) = -1 EFAULT (%m)\n", SYSCALL_NAME, r, e); 55 56 puts("+++ exited with 0 +++"); 57 return 0; 58 } 59
