1/*	$NetBSD: t_symlinkat.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_symlinkat.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#include <sys/stat.h>
44
45#define ODIR "olddir"
46#define NDIR "newdir"
47#define FILE "olddir/old"
48#define BASEFILE "old"
49#define RELFILE "../olddir/old"
50#define LINK "newdir/symlink"
51#define BASELINK "symlink"
52#define FILEERR "olddir/olderr"
53
54ATF_TC(symlinkat_fd);
55ATF_TC_HEAD(symlinkat_fd, tc)
56{
57	atf_tc_set_md_var(tc, "descr", "See that symlinkat works with fd");
58}
59ATF_TC_BODY(symlinkat_fd, tc)
60{
61	int dfd, fd;
62	struct stat ost, nst;
63
64	ATF_REQUIRE(mkdir(ODIR, 0755) == 0);
65	ATF_REQUIRE(mkdir(NDIR, 0755) == 0);
66	ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1);
67	ATF_REQUIRE(close(fd) != -1);
68
69	ATF_REQUIRE((dfd = open(NDIR, O_RDONLY, 0)) != -1);
70	ATF_REQUIRE(symlinkat(RELFILE, dfd, BASELINK) == 0);
71	ATF_REQUIRE(close(dfd) == 0);
72
73	ATF_REQUIRE(stat(FILE, &ost) == 0);
74	ATF_REQUIRE(stat(LINK, &nst) == 0);
75	ATF_REQUIRE(ost.st_ino == nst.st_ino);
76}
77
78ATF_TC(symlinkat_fdcwd);
79ATF_TC_HEAD(symlinkat_fdcwd, tc)
80{
81	atf_tc_set_md_var(tc, "descr",
82			  "See that symlinkat works with fd as AT_FDCWD");
83}
84ATF_TC_BODY(symlinkat_fdcwd, tc)
85{
86	int fd;
87	struct stat ost, nst;
88
89	ATF_REQUIRE(mkdir(ODIR, 0755) == 0);
90	ATF_REQUIRE(mkdir(NDIR, 0755) == 0);
91	ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1);
92	ATF_REQUIRE(close(fd) != -1);
93
94	ATF_REQUIRE(symlinkat(RELFILE, AT_FDCWD, LINK) == 0);
95
96	ATF_REQUIRE(stat(FILE, &ost) == 0);
97	ATF_REQUIRE(stat(LINK, &nst) == 0);
98	ATF_REQUIRE(ost.st_ino == nst.st_ino);
99}
100
101ATF_TC(symlinkat_fdcwderr);
102ATF_TC_HEAD(symlinkat_fdcwderr, tc)
103{
104	atf_tc_set_md_var(tc, "descr",
105		  "See that symlinkat works with fd as AT_FDCWD and bad path");
106}
107ATF_TC_BODY(symlinkat_fdcwderr, tc)
108{
109	int fd;
110	struct stat st;
111
112	ATF_REQUIRE(mkdir(ODIR, 0755) == 0);
113	ATF_REQUIRE(mkdir(NDIR, 0755) == 0);
114	ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1);
115	ATF_REQUIRE(close(fd) != -1);
116
117	ATF_REQUIRE(symlinkat(FILEERR, AT_FDCWD, LINK) == 0);
118	ATF_REQUIRE(lstat(LINK, &st) == 0);
119	ATF_REQUIRE(stat(LINK, &st) == -1);
120	ATF_REQUIRE(errno == ENOENT);
121
122}
123
124ATF_TC(symlinkat_fderr);
125ATF_TC_HEAD(symlinkat_fderr, tc)
126{
127	atf_tc_set_md_var(tc, "descr", "See that symlinkat fails with fd as -1");
128}
129ATF_TC_BODY(symlinkat_fderr, tc)
130{
131	int fd;
132
133	ATF_REQUIRE(mkdir(ODIR, 0755) == 0);
134	ATF_REQUIRE(mkdir(NDIR, 0755) == 0);
135	ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1);
136	ATF_REQUIRE(close(fd) != -1);
137
138	ATF_REQUIRE(symlinkat(RELFILE, -1, LINK) == -1);
139}
140
141ATF_TP_ADD_TCS(tp)
142{
143
144	ATF_TP_ADD_TC(tp, symlinkat_fd);
145	ATF_TP_ADD_TC(tp, symlinkat_fdcwd);
146	ATF_TP_ADD_TC(tp, symlinkat_fdcwderr);
147	ATF_TP_ADD_TC(tp, symlinkat_fderr);
148
149	return atf_no_error();
150}
151