tests/lib/libc/sys/t_access.c

   1 /* $NetBSD: t_access.c,v 1.1 2011/07/07 06:57:53 jruoho Exp $ */
   2
   3 /*-
   4  * Copyright (c) 2011 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Jukka Ruohonen.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31 #include <sys/cdefs.h>
  32 __RCSID("$NetBSD: t_access.c,v 1.1 2011/07/07 06:57:53 jruoho Exp $");
  33
  34 #include <errno.h>
  35 #include <fcntl.h>
  36 #include <limits.h>
  37 #include <stdint.h>
  38 #include <stdlib.h>
  39 #include <unistd.h>
  40
  41 #include <atf-c.h>
  42
  43 static const char path[] = "access";
  44 static const int mode[4] = { R_OK, W_OK, X_OK, F_OK };
  45
  46 ATF_TC_WITH_CLEANUP(access_access);
  47 ATF_TC_HEAD(access_access, tc)
  48 {
  49         atf_tc_set_md_var(tc, "descr", "Test access(2) for EACCES");
  50         atf_tc_set_md_var(tc, "require.user", "unprivileged");
  51 }
  52
  53 ATF_TC_BODY(access_access, tc)
  54 {
  55         const int perm[3] = { 0200, 0400, 0000 };
  56         size_t i;
  57         int fd;
  58
  59         fd = open(path, O_RDONLY | O_CREAT);
  60
  61         if (fd < 0)
  62                 return;
  63
  64         for (i = 0; i < __arraycount(mode) - 1; i++) {
  65
  66                 ATF_REQUIRE(fchmod(fd, perm[i]) == 0);
  67
  68                 errno = 0;
  69
  70                 ATF_REQUIRE(access(path, mode[i]) != 0);
  71                 ATF_REQUIRE(errno == EACCES);
  72         }
  73
  74         ATF_REQUIRE(close(fd) == 0);
  75 }
  76
  77 ATF_TC_CLEANUP(access_access, tc)
  78 {
  79         (void)unlink(path);
  80 }
  81
  82 ATF_TC(access_fault);
  83 ATF_TC_HEAD(access_fault, tc)
  84 {
  85         atf_tc_set_md_var(tc, "descr", "Test access(2) for EFAULT");
  86 }
  87
  88 ATF_TC_BODY(access_fault, tc)
  89 {
  90         size_t i;
  91
  92         for (i = 0; i < __arraycount(mode); i++) {
  93
  94                 errno = 0;
  95
  96                 ATF_REQUIRE(access(NULL, mode[i]) != 0);
  97                 ATF_REQUIRE(errno == EFAULT);
  98
  99                 errno = 0;
 100
 101                 ATF_REQUIRE(access((char *)-1, mode[i]) != 0);
 102                 ATF_REQUIRE(errno == EFAULT);
 103         }
 104 }
 105
 106 ATF_TC(access_inval);
 107 ATF_TC_HEAD(access_inval, tc)
 108 {
 109         atf_tc_set_md_var(tc, "descr", "Test access(2) for EINVAL");
 110 }
 111
 112 ATF_TC_BODY(access_inval, tc)
 113 {
 114
 115         errno = 0;
 116
 117         ATF_REQUIRE(access("/usr", -1) != 0);
 118         ATF_REQUIRE(errno == EINVAL);
 119 }
 120
 121 ATF_TC(access_notdir);
 122 ATF_TC_HEAD(access_notdir, tc)
 123 {
 124         atf_tc_set_md_var(tc, "descr", "Test access(2) for ENOTDIR");
 125 }
 126
 127 ATF_TC_BODY(access_notdir, tc)
 128 {
 129         size_t i;
 130
 131         for (i = 0; i < __arraycount(mode); i++) {
 132
 133                 errno = 0;
 134
 135                 /*
 136                  *  IEEE Std 1003.1-2008 about ENOTDIR:
 137                  *
 138                  *  "A component of the path prefix is not a directory,
 139                  *   or the path argument contains at least one non-<slash>
 140                  *   character and ends with one or more trailing <slash>
 141                  *   characters and the last pathname component names an
 142                  *   existing file that is neither a directory nor a symbolic
 143                  *   link to a directory."
 144                  */
 145                 ATF_REQUIRE(access("/etc/passwd//", mode[i]) != 0);
 146                 ATF_REQUIRE(errno == ENOTDIR);
 147         }
 148 }
 149
 150 ATF_TC(access_notexist);
 151 ATF_TC_HEAD(access_notexist, tc)
 152 {
 153         atf_tc_set_md_var(tc, "descr", "Test access(2) for ENOENT");
 154 }
 155
 156 ATF_TC_BODY(access_notexist, tc)
 157 {
 158         size_t i;
 159
 160         for (i = 0; i < __arraycount(mode); i++) {
 161
 162                 errno = 0;
 163
 164                 ATF_REQUIRE(access("", mode[i]) != 0);
 165                 ATF_REQUIRE(errno == ENOENT);
 166         }
 167 }
 168
 169 ATF_TC(access_toolong);
 170 ATF_TC_HEAD(access_toolong, tc)
 171 {
 172         atf_tc_set_md_var(tc, "descr", "Test access(2) for ENAMETOOLONG");
 173 }
 174
 175 ATF_TC_BODY(access_toolong, tc)
 176 {
 177         char *buf;
 178         size_t i;
 179
 180         buf = malloc(PATH_MAX);
 181
 182         if (buf == NULL)
 183                 return;
 184
 185         for (i = 0; i < PATH_MAX; i++)
 186                 buf[i] = 'x';
 187
 188         for (i = 0; i < __arraycount(mode); i++) {
 189
 190                 errno = 0;
 191
 192                 ATF_REQUIRE(access(buf, mode[i]) != 0);
 193                 ATF_REQUIRE(errno == ENAMETOOLONG);
 194         }
 195
 196         free(buf);
 197 }
 198
 199 ATF_TP_ADD_TCS(tp)
 200 {
 201
 202         ATF_TP_ADD_TC(tp, access_access);
 203         ATF_TP_ADD_TC(tp, access_fault);
 204         ATF_TP_ADD_TC(tp, access_inval);
 205         ATF_TP_ADD_TC(tp, access_notdir);
 206         ATF_TP_ADD_TC(tp, access_notexist);
 207         ATF_TP_ADD_TC(tp, access_toolong);
 208
 209         return atf_no_error();
 210 }