xref: /freebsd/libexec/rtld-elf/tests/ld_preload_fds.c (revision d0b2dbfa0ecf2bbc9709efc5e20baf8e4b44bbbf)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
3  * Copyright 2021 Mariusz Zaborski <oshogbo@FreeBSD.org>
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
15  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
18  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
19  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
20  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
21  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24  */
25 
26 #include <atf-c.h>
27 #include <fcntl.h>
28 #include <stdio.h>
29 
30 #include "common.h"
31 
32 int binaryfd;
33 int libraryfd;
34 
35 static void
36 setup(const atf_tc_t *tc)
37 {
38 	int testdir;
39 
40 	testdir = opendir_fd(atf_tc_get_config_var(tc, "srcdir"));
41 	ATF_REQUIRE(testdir >= 0);
42 
43 	binaryfd = openat(testdir, TARGET_ELF_NAME, O_RDONLY);
44 	ATF_REQUIRE(binaryfd >= 0);
45 	libraryfd = openat(testdir, TARGET_LIBRARY, O_RDONLY);
46 	ATF_REQUIRE(libraryfd >= 0);
47 
48 	close(testdir);
49 }
50 
51 ATF_TC_WITHOUT_HEAD(missing_library);
52 ATF_TC_BODY(missing_library, tc)
53 {
54 
55 	setup(tc);
56 	expect_missing_library(binaryfd, NULL);
57 }
58 
59 ATF_TC_WITHOUT_HEAD(bad_librarys);
60 ATF_TC_BODY(bad_librarys, tc)
61 {
62 	char *senv;
63 
64 	ATF_REQUIRE(asprintf(&senv, "LD_PRELOAD_FDS=::") > 0);
65 
66 	setup(tc);
67 	expect_missing_library(binaryfd, senv);
68 }
69 
70 ATF_TC_WITHOUT_HEAD(single_library);
71 ATF_TC_BODY(single_library, tc)
72 {
73 	char *senv;
74 
75 	setup(tc);
76 
77 	ATF_REQUIRE(
78 	    asprintf(&senv, "LD_PRELOAD_FDS=%d", libraryfd) > 0);
79 
80 	expect_success(binaryfd, senv);
81 }
82 
83 ATF_TC_WITHOUT_HEAD(two_librarys);
84 ATF_TC_BODY(two_librarys, tc)
85 {
86 	char *senv;
87 
88 	setup(tc);
89 
90 	ATF_REQUIRE(
91 	    asprintf(&senv, "LD_PRELOAD_FDS=%d:%d", libraryfd, libraryfd) > 0);
92 
93 	expect_success(binaryfd, senv);
94 }
95 
96 /* Register test cases with ATF. */
97 ATF_TP_ADD_TCS(tp)
98 {
99 
100 	ATF_TP_ADD_TC(tp, missing_library);
101 	ATF_TP_ADD_TC(tp, bad_librarys);
102 	ATF_TP_ADD_TC(tp, single_library);
103 	ATF_TP_ADD_TC(tp, two_librarys);
104 
105 	return atf_no_error();
106 }
107