tests/lib/libc/c063/t_unlinkat.c

   1 /*      $NetBSD: t_unlinkat.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_unlinkat.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/unlinkat"
  46 #define BASEFILE "unlinkat"
  47 #define FILEERR "dir/unlinkaterr"
  48
  49 ATF_TC(unlinkat_fd);
  50 ATF_TC_HEAD(unlinkat_fd, tc)
  51 {
  52         atf_tc_set_md_var(tc, "descr", "See that unlinkat works with fd");
  53 }
  54 ATF_TC_BODY(unlinkat_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(unlinkat(dfd, BASEFILE, 0) == 0);
  65         ATF_REQUIRE(close(dfd) == 0);
  66 }
  67
  68 ATF_TC(unlinkat_fdcwd);
  69 ATF_TC_HEAD(unlinkat_fdcwd, tc)
  70 {
  71         atf_tc_set_md_var(tc, "descr",
  72                           "See that unlinkat works with fd as AT_FDCWD");
  73 }
  74 ATF_TC_BODY(unlinkat_fdcwd, tc)
  75 {
  76         int fd;
  77
  78         ATF_REQUIRE(mkdir(DIR, 0755) == 0);
  79         ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1);
  80         ATF_REQUIRE(close(fd) == 0);
  81
  82         ATF_REQUIRE(chdir(DIR) == 0);
  83         ATF_REQUIRE(unlinkat(AT_FDCWD, BASEFILE, 0) == 0);
  84 }
  85
  86 ATF_TC(unlinkat_fdcwderr);
  87 ATF_TC_HEAD(unlinkat_fdcwderr, tc)
  88 {
  89         atf_tc_set_md_var(tc, "descr",
  90                   "See that unlinkat fails with fd as AT_FDCWD and bad path");
  91 }
  92 ATF_TC_BODY(unlinkat_fdcwderr, tc)
  93 {
  94         ATF_REQUIRE(mkdir(DIR, 0755) == 0);
  95         ATF_REQUIRE(unlinkat(AT_FDCWD, FILEERR, 0) == -1);
  96 }
  97
  98 ATF_TC(unlinkat_fderr1);
  99 ATF_TC_HEAD(unlinkat_fderr1, tc)
 100 {
 101         atf_tc_set_md_var(tc, "descr", "See that unlinkat fail with bad path");
 102 }
 103 ATF_TC_BODY(unlinkat_fderr1, tc)
 104 {
 105         int dfd;
 106
 107         ATF_REQUIRE(mkdir(DIR, 0755) == 0);
 108         ATF_REQUIRE((dfd = open(DIR, O_RDONLY, 0)) != -1);
 109         ATF_REQUIRE(unlinkat(dfd, FILEERR, 0) == -1);
 110         ATF_REQUIRE(close(dfd) == 0);
 111 }
 112
 113 ATF_TC(unlinkat_fderr2);
 114 ATF_TC_HEAD(unlinkat_fderr2, tc)
 115 {
 116         atf_tc_set_md_var(tc, "descr", "See that unlinkat fails with bad fdat");
 117 }
 118 ATF_TC_BODY(unlinkat_fderr2, tc)
 119 {
 120         int dfd;
 121         int fd;
 122         char cwd[MAXPATHLEN];
 123
 124         ATF_REQUIRE(mkdir(DIR, 0755) == 0);
 125         ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1);
 126         ATF_REQUIRE(close(fd) == 0);
 127
 128         ATF_REQUIRE((dfd = open(getcwd(cwd, MAXPATHLEN), O_RDONLY, 0)) != -1);
 129         ATF_REQUIRE(unlinkat(dfd, BASEFILE, 0) == -1);
 130         ATF_REQUIRE(close(dfd) == 0);
 131 }
 132
 133 ATF_TC(unlinkat_fderr3);
 134 ATF_TC_HEAD(unlinkat_fderr3, tc)
 135 {
 136         atf_tc_set_md_var(tc, "descr", "See that unlinkat fails with fd as -1");
 137 }
 138 ATF_TC_BODY(unlinkat_fderr3, tc)
 139 {
 140         int fd;
 141
 142         ATF_REQUIRE(mkdir(DIR, 0755) == 0);
 143         ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1);
 144         ATF_REQUIRE(close(fd) == 0);
 145
 146         ATF_REQUIRE(unlinkat(-1, FILE, 0) == -1);
 147 }
 148
 149 ATF_TC(unlinkat_dir);
 150 ATF_TC_HEAD(unlinkat_dir, tc)
 151 {
 152         atf_tc_set_md_var(tc, "descr",
 153                           "See that unlinkat can remove directories");
 154 }
 155 ATF_TC_BODY(unlinkat_dir, tc)
 156 {
 157         ATF_REQUIRE(mkdir(DIR, 0755) == 0);
 158
 159         ATF_REQUIRE(unlinkat(AT_FDCWD, DIR, 0) == -1);
 160         ATF_REQUIRE(errno == EPERM);
 161         ATF_REQUIRE(unlinkat(AT_FDCWD, DIR, AT_REMOVEDIR) == 0);
 162 }
 163
 164 ATF_TP_ADD_TCS(tp)
 165 {
 166
 167         ATF_TP_ADD_TC(tp, unlinkat_fd);
 168         ATF_TP_ADD_TC(tp, unlinkat_fdcwd);
 169         ATF_TP_ADD_TC(tp, unlinkat_fdcwderr);
 170         ATF_TP_ADD_TC(tp, unlinkat_fderr1);
 171         ATF_TP_ADD_TC(tp, unlinkat_fderr2);
 172         ATF_TP_ADD_TC(tp, unlinkat_fderr3);
 173         ATF_TP_ADD_TC(tp, unlinkat_dir);
 174
 175         return atf_no_error();
 176 }