1 /* 2 * This file is part of caps strace test. 3 * 4 * Copyright (c) 2014-2016 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 "tests.h" 31 #include <errno.h> 32 #include <string.h> 33 34 extern int capget(int *, int *); 35 extern int capset(int *, const int *); 36 37 int 38 main(void) 39 { 40 const int data[] = { 2, 4, 0, 8, 16, 0 }; 41 const int v1 = 0x19980330; 42 const int v2 = 0x20071026; 43 const int v3 = 0x20080522; 44 45 int * const head = tail_alloc(sizeof(int) * 2); 46 head[0] = v3; 47 head[1] = 0; 48 int * const tail_data = tail_alloc(sizeof(data)); 49 50 capget(NULL, NULL); 51 capget(head + 2, tail_data); 52 capget(head, tail_data + ARRAY_SIZE(data)); 53 54 if (capget(head, tail_data)) 55 perror_msg_and_skip("capget"); 56 if (head[0] != v3) 57 error_msg_and_skip("capget: v3 expected"); 58 59 memcpy(tail_data, data, sizeof(data)); 60 61 capset(NULL, NULL); 62 capset(head + 2, tail_data); 63 64 head[0] = 0xbadc0ded; 65 head[1] = 2718281828U; 66 capset(head, tail_data + ARRAY_SIZE(data) - 2); 67 68 head[0] = v2; 69 head[1] = 0; 70 capset(head, tail_data + ARRAY_SIZE(data) - 5); 71 72 memcpy(tail_data, data, sizeof(data)); 73 head[0] = v3; 74 if (capset(head, tail_data) == 0 || errno != EPERM) 75 perror_msg_and_skip("capset"); 76 77 memset(tail_data, 0, sizeof(data) / 2); 78 if (capset(head, tail_data) == 0 || errno != EPERM) 79 perror_msg_and_skip("capset"); 80 81 memcpy(tail_data + ARRAY_SIZE(data) / 2, data, sizeof(data) / 2); 82 head[0] = v1; 83 if (capset(head, tail_data + ARRAY_SIZE(data) / 2) == 0 || 84 errno != EPERM) 85 perror_msg_and_skip("capset"); 86 87 return 0; 88 } 89