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t_openat.c revision 1.2.12.1 
      1 /*	$NetBSD: t_openat.c,v 1.2.12.1 2017/03/20 06:57:58 pgoyette 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 1.2.12.1 2017/03/20 06:57:58 pgoyette Exp $");
     33 
     34 #include <sys/param.h>
     35 #include <sys/stat.h>
     36 #include <atf-c.h>
     37 #include <errno.h>
     38 #include <fcntl.h>
     39 #include <limits.h>
     40 #include <paths.h>
     41 #include <stdio.h>
     42 #include <string.h>
     43 #include <unistd.h>
     44 
     45 #define DIR "dir"
     46 #define FILE "dir/openat"
     47 #define BASEFILE "openat"
     48 #define FILEERR "dir/openaterr"
     49 
     50 ATF_TC(openat_fd);
     51 ATF_TC_HEAD(openat_fd, tc)
     52 {
     53 	atf_tc_set_md_var(tc, "descr", "See that openat works with fd");
     54 }
     55 ATF_TC_BODY(openat_fd, tc)
     56 {
     57 	int dfd;
     58 	int fd;
     59 
     60 	ATF_REQUIRE(mkdir(DIR, 0755) == 0);
     61 	ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1);
     62 	ATF_REQUIRE(close(fd) == 0);
     63 
     64 	ATF_REQUIRE((dfd = open(DIR, O_RDONLY, 0)) != -1);
     65 	ATF_REQUIRE((fd = openat(dfd, BASEFILE, O_RDONLY, 0)) != -1);
     66 	ATF_REQUIRE(close(dfd) == 0);
     67 	ATF_REQUIRE(close(fd) == 0);
     68 }
     69 
     70 ATF_TC(openat_fdcwd);
     71 ATF_TC_HEAD(openat_fdcwd, tc)
     72 {
     73 	atf_tc_set_md_var(tc, "descr",
     74 			  "See that openat works with fd as AT_FDCWD");
     75 }
     76 ATF_TC_BODY(openat_fdcwd, tc)
     77 {
     78 	int fd;
     79 
     80 	ATF_REQUIRE(mkdir(DIR, 0755) == 0);
     81 	ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1);
     82 	ATF_REQUIRE(close(fd) == 0);
     83 
     84 	ATF_REQUIRE(chdir(DIR) == 0);
     85 	ATF_REQUIRE((fd = openat(AT_FDCWD, BASEFILE, O_RDONLY, 0)) != -1);
     86 	ATF_REQUIRE(close(fd) == 0);
     87 }
     88 
     89 ATF_TC(openat_fdcwderr);
     90 ATF_TC_HEAD(openat_fdcwderr, tc)
     91 {
     92 	atf_tc_set_md_var(tc, "descr",
     93 		  "See that openat fails with fd as AT_FDCWD and bad path");
     94 }
     95 ATF_TC_BODY(openat_fdcwderr, tc)
     96 {
     97 	int fd;
     98 
     99 	ATF_REQUIRE(mkdir(DIR, 0755) == 0);
    100 	ATF_REQUIRE((fd = openat(AT_FDCWD, FILEERR, O_RDONLY, 0)) == -1);
    101 }
    102 
    103 ATF_TC(openat_fderr1);
    104 ATF_TC_HEAD(openat_fderr1, tc)
    105 {
    106 	atf_tc_set_md_var(tc, "descr", "See that openat fail with bad path");
    107 }
    108 ATF_TC_BODY(openat_fderr1, tc)
    109 {
    110 	int dfd;
    111 	int fd;
    112 
    113 	ATF_REQUIRE(mkdir(DIR, 0755) == 0);
    114 	ATF_REQUIRE((dfd = open(DIR, O_RDONLY, 0)) != -1);
    115 	ATF_REQUIRE((fd = openat(dfd, FILEERR, O_RDONLY, 0)) == -1);
    116 	ATF_REQUIRE(close(dfd) == 0);
    117 }
    118 
    119 ATF_TC(openat_fderr2);
    120 ATF_TC_HEAD(openat_fderr2, tc)
    121 {
    122 	atf_tc_set_md_var(tc, "descr", "See that openat fails with bad fdat");
    123 }
    124 ATF_TC_BODY(openat_fderr2, tc)
    125 {
    126 	int dfd;
    127 	int fd;
    128 	char cwd[MAXPATHLEN];
    129 
    130 	ATF_REQUIRE(mkdir(DIR, 0755) == 0);
    131 	ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1);
    132 	ATF_REQUIRE(close(fd) == 0);
    133 
    134 	ATF_REQUIRE((dfd = open(getcwd(cwd, MAXPATHLEN), O_RDONLY, 0)) != -1);
    135 	ATF_REQUIRE((fd = openat(dfd, BASEFILE, O_RDONLY, 0)) == -1);
    136 	ATF_REQUIRE(close(dfd) == 0);
    137 }
    138 
    139 ATF_TC(openat_fderr3);
    140 ATF_TC_HEAD(openat_fderr3, tc)
    141 {
    142 	atf_tc_set_md_var(tc, "descr", "See that openat fails with fd as -1");
    143 }
    144 ATF_TC_BODY(openat_fderr3, tc)
    145 {
    146 	int fd;
    147 
    148 	ATF_REQUIRE(mkdir(DIR, 0755) == 0);
    149 	ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1);
    150 	ATF_REQUIRE(close(fd) == 0);
    151 
    152 	ATF_REQUIRE((fd = openat(-1, FILE, O_RDONLY, 0)) == -1);
    153 }
    154 
    155 ATF_TP_ADD_TCS(tp)
    156 {
    157 
    158 	ATF_TP_ADD_TC(tp, openat_fd);
    159 	ATF_TP_ADD_TC(tp, openat_fdcwd);
    160 	ATF_TP_ADD_TC(tp, openat_fdcwderr);
    161 	ATF_TP_ADD_TC(tp, openat_fderr1);
    162 	ATF_TP_ADD_TC(tp, openat_fderr2);
    163 	ATF_TP_ADD_TC(tp, openat_fderr3);
    164 
    165 	return atf_no_error();
    166 }
    167