1 /* 2 * Test printstrn/umoven. 3 * 4 * Copyright (c) 2015-2017 Dmitry V. Levin <ldv (at) altlinux.org> 5 * Copyright (c) 2017-2018 The strace developers. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. The name of the author may not be used to endorse or promote products 17 * derived from this software without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #include "tests.h" 32 33 #include <stdio.h> 34 #include <string.h> 35 #include <unistd.h> 36 #include <asm/unistd.h> 37 38 #include "scno.h" 39 #include "test_ucopy.h" 40 41 static const char *errstr; 42 43 static void add_key(const char *addr, const unsigned int len) 44 { 45 errstr = sprintrc(syscall(__NR_add_key, 0, 0, addr, len, -1)); 46 } 47 48 static void 49 test_printstrn_at(char *const p, const unsigned int test_max) 50 { 51 unsigned int i; 52 53 for (i = 0; i <= test_max; ++i) { 54 add_key(p + (test_max - i), i); 55 printf("add_key(NULL, NULL, \"%.*s\", %u" 56 ", KEY_SPEC_THREAD_KEYRING) = %s\n", 57 (int) i, p + (test_max - i), i, errstr); 58 } 59 } 60 61 static void 62 test_efault(const unsigned int test_max) 63 { 64 char *p = tail_alloc(test_max); 65 memset(p, '/', test_max); 66 unsigned int i; 67 68 for (i = 0; i <= test_max; ++i) { 69 unsigned int j; 70 for (j = 1; j <= sizeof(long); ++j) { 71 add_key(p + (test_max - i), i + j); 72 printf("add_key(NULL, NULL, %p, %u" 73 ", KEY_SPEC_THREAD_KEYRING) = %s\n", 74 p + (test_max - i), i + j, errstr); 75 } 76 } 77 } 78 79 static void 80 test_print_memory(char *const p, const unsigned int test_max) 81 { 82 add_key(p, test_max); 83 printf("add_key(NULL, NULL, "); 84 print_quoted_memory(p, test_max); 85 printf(", %u, KEY_SPEC_THREAD_KEYRING) = %s\n", test_max, errstr); 86 } 87 88 void 89 test_printstrn(const unsigned int test_max) 90 { 91 /* 92 * abcdefgh| 93 * abcdefg|h 94 * abcdef|gh 95 * abcde|fgh 96 * abcd|efgh 97 * abc|defgh 98 * ab|cdefgh 99 * a|bcdefgh 100 * |abcdefgh 101 */ 102 const unsigned int page_size = get_page_size(); 103 char *p = tail_alloc(test_max + page_size); 104 fill_memory_ex(p, test_max + page_size, 'a', 'z' - 'a' + 1); 105 106 unsigned int i; 107 for (i = 1; i <= sizeof(long); ++i) 108 test_printstrn_at(p + i, test_max); 109 for (i = 0; i < sizeof(long); ++i) 110 test_printstrn_at(p + page_size - i, test_max); 111 test_efault(test_max); 112 113 fill_memory_ex(p, test_max + page_size, 0x00, 0xFF); 114 /* Test corner cases when octal quoting goes before digit */ 115 for (i = 0; i < 11; i++) 116 p[2 + 3 * i] = '0' + i - 1; 117 118 test_print_memory(p, test_max); 119 } 120
