1 /* 2 * Copyright (c) 2015-2016 Dmitry V. Levin <ldv (at) altlinux.org> 3 * Copyright (c) 2015-2017 The strace developers. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. The name of the author may not be used to endorse or promote products 15 * derived from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #include "tests.h" 30 #include <asm/unistd.h> 31 32 #ifdef __NR_readdir 33 34 # include <assert.h> 35 # include <dirent.h> 36 # include <fcntl.h> 37 # include <stdio.h> 38 # include <string.h> 39 # include <sys/stat.h> 40 # include <unistd.h> 41 42 static const char fname[] = 43 "A\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\n" 44 "A\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\n" 45 "A\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\n" 46 "A\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\n" 47 "A\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\n" 48 "A\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\n" 49 "A\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\n" 50 "A\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nZ"; 51 static const char qname[] = 52 "A\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\n" 53 "A\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\n" 54 "A\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\n" 55 "A\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\n" 56 "A\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\n" 57 "A\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\n" 58 "A\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\n" 59 "A\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nA\\nZ"; 60 61 int 62 main(void) 63 { 64 static const char dname[] = "readdir.test.tmp.dir"; 65 struct { 66 unsigned long d_ino; 67 unsigned long d_off; 68 unsigned short d_reclen; 69 char d_name[1024]; 70 } e; 71 int rc; 72 73 assert(!mkdir(dname, 0700)); 74 assert(!chdir(dname)); 75 (void) close(0); 76 assert(!creat(fname, 0600)); 77 assert(!close(0)); 78 assert(!open(".", O_RDONLY | O_DIRECTORY)); 79 while ((rc = syscall(__NR_readdir, 0, &e, 1))) { 80 if (rc < 0) 81 perror_msg_and_skip("readdir"); 82 e.d_name[e.d_reclen] = '\0'; 83 printf("readdir(0, {d_ino=%lu, d_off=%lu, d_reclen=%u" 84 ", d_name=\"%s\"}) = %d\n", 85 e.d_ino, e.d_off, e.d_reclen, 86 e.d_name[0] == '.' ? e.d_name : qname, rc); 87 } 88 printf("readdir(0, %p) = 0\n", &e); 89 puts("+++ exited with 0 +++"); 90 assert(!unlink(fname)); 91 assert(!chdir("..")); 92 assert(!rmdir(dname)); 93 94 return 0; 95 } 96 97 #else 98 99 SKIP_MAIN_UNDEFINED("__NR_readdir") 100 101 #endif 102
