tests/lib/libc/c063/t_openat.c

   1 /*      $NetBSD: t_openat.c,v 1.2 2013/03/17 04:46:06 jmmv Exp $ */
   2
   3 /*-
   4  * Copyright (c) 2012 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Emmanuel Dreyfus.
   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_openat.c,v 1.2 2013/03/17 04:46:06 jmmv Exp $");
  33
  34 #include <atf-c.h>
  35 #include <errno.h>
  36 #include <fcntl.h>
  37 #include <limits.h>
  38 #include <paths.h>
  39 #include <stdio.h>
  40 #include <string.h>
  41 #include <unistd.h>
  42 #include <sys/param.h>
  43
  44 #define DIR "dir"
  45 #define FILE "dir/openat"
  46 #define BASEFILE "openat"
  47 #define FILEERR "dir/openaterr"
  48
  49 ATF_TC(openat_fd);
  50 ATF_TC_HEAD(openat_fd, tc)
  51 {
  52         atf_tc_set_md_var(tc, "descr", "See that openat works with fd");
  53 }
  54 ATF_TC_BODY(openat_fd, tc)
  55 {
  56         int dfd;
  57         int fd;
  58
  59         ATF_REQUIRE(mkdir(DIR, 0755) == 0);
  60         ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1);
  61         ATF_REQUIRE(close(fd) == 0);
  62
  63         ATF_REQUIRE((dfd = open(DIR, O_RDONLY, 0)) != -1);
  64         ATF_REQUIRE((fd = openat(dfd, BASEFILE, O_RDONLY, 0)) != -1);
  65         ATF_REQUIRE(close(dfd) == 0);
  66         ATF_REQUIRE(close(fd) == 0);
  67 }
  68
  69 ATF_TC(openat_fdcwd);
  70 ATF_TC_HEAD(openat_fdcwd, tc)
  71 {
  72         atf_tc_set_md_var(tc, "descr",
  73                           "See that openat works with fd as AT_FDCWD");
  74 }
  75 ATF_TC_BODY(openat_fdcwd, tc)
  76 {
  77         int fd;
  78
  79         ATF_REQUIRE(mkdir(DIR, 0755) == 0);
  80         ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1);
  81         ATF_REQUIRE(close(fd) == 0);
  82
  83         ATF_REQUIRE(chdir(DIR) == 0);
  84         ATF_REQUIRE((fd = openat(AT_FDCWD, BASEFILE, O_RDONLY, 0)) != -1);
  85         ATF_REQUIRE(close(fd) == 0);
  86 }
  87
  88 ATF_TC(openat_fdcwderr);
  89 ATF_TC_HEAD(openat_fdcwderr, tc)
  90 {
  91         atf_tc_set_md_var(tc, "descr",
  92                   "See that openat fails with fd as AT_FDCWD and bad path");
  93 }
  94 ATF_TC_BODY(openat_fdcwderr, tc)
  95 {
  96         int fd;
  97
  98         ATF_REQUIRE(mkdir(DIR, 0755) == 0);
  99         ATF_REQUIRE((fd = openat(AT_FDCWD, FILEERR, O_RDONLY, 0)) == -1);
 100 }
 101
 102 ATF_TC(openat_fderr1);
 103 ATF_TC_HEAD(openat_fderr1, tc)
 104 {
 105         atf_tc_set_md_var(tc, "descr", "See that openat fail with bad path");
 106 }
 107 ATF_TC_BODY(openat_fderr1, tc)
 108 {
 109         int dfd;
 110         int fd;
 111
 112         ATF_REQUIRE(mkdir(DIR, 0755) == 0);
 113         ATF_REQUIRE((dfd = open(DIR, O_RDONLY, 0)) != -1);
 114         ATF_REQUIRE((fd = openat(dfd, FILEERR, O_RDONLY, 0)) == -1);
 115         ATF_REQUIRE(close(dfd) == 0);
 116 }
 117
 118 ATF_TC(openat_fderr2);
 119 ATF_TC_HEAD(openat_fderr2, tc)
 120 {
 121         atf_tc_set_md_var(tc, "descr", "See that openat fails with bad fdat");
 122 }
 123 ATF_TC_BODY(openat_fderr2, tc)
 124 {
 125         int dfd;
 126         int fd;
 127         char cwd[MAXPATHLEN];
 128
 129         ATF_REQUIRE(mkdir(DIR, 0755) == 0);
 130         ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1);
 131         ATF_REQUIRE(close(fd) == 0);
 132
 133         ATF_REQUIRE((dfd = open(getcwd(cwd, MAXPATHLEN), O_RDONLY, 0)) != -1);
 134         ATF_REQUIRE((fd = openat(dfd, BASEFILE, O_RDONLY, 0)) == -1);
 135         ATF_REQUIRE(close(dfd) == 0);
 136 }
 137
 138 ATF_TC(openat_fderr3);
 139 ATF_TC_HEAD(openat_fderr3, tc)
 140 {
 141         atf_tc_set_md_var(tc, "descr", "See that openat fails with fd as -1");
 142 }
 143 ATF_TC_BODY(openat_fderr3, tc)
 144 {
 145         int fd;
 146
 147         ATF_REQUIRE(mkdir(DIR, 0755) == 0);
 148         ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1);
 149         ATF_REQUIRE(close(fd) == 0);
 150
 151         ATF_REQUIRE((fd = openat(-1, FILE, O_RDONLY, 0)) == -1);
 152 }
 153
 154 ATF_TP_ADD_TCS(tp)
 155 {
 156
 157         ATF_TP_ADD_TC(tp, openat_fd);
 158         ATF_TP_ADD_TC(tp, openat_fdcwd);
 159         ATF_TP_ADD_TC(tp, openat_fdcwderr);
 160         ATF_TP_ADD_TC(tp, openat_fderr1);
 161         ATF_TP_ADD_TC(tp, openat_fderr2);
 162         ATF_TP_ADD_TC(tp, openat_fderr3);
 163
 164         return atf_no_error();
 165 }