1 | /* Check DT_AUDIT with dlmopen. |
2 | Copyright (C) 2021-2022 Free Software Foundation, Inc. |
3 | This file is part of the GNU C Library. |
4 | |
5 | The GNU C Library is free software; you can redistribute it and/or |
6 | modify it under the terms of the GNU Lesser General Public |
7 | License as published by the Free Software Foundation; either |
8 | version 2.1 of the License, or (at your option) any later version. |
9 | |
10 | The GNU C Library is distributed in the hope that it will be useful, |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
13 | Lesser General Public License for more details. |
14 | |
15 | You should have received a copy of the GNU Lesser General Public |
16 | License along with the GNU C Library; if not, see |
17 | <https://www.gnu.org/licenses/>. */ |
18 | |
19 | #include <array_length.h> |
20 | #include <getopt.h> |
21 | #include <string.h> |
22 | #include <stdlib.h> |
23 | #include <unistd.h> |
24 | #include <gnu/lib-names.h> |
25 | #include <support/capture_subprocess.h> |
26 | #include <support/check.h> |
27 | #include <support/xdlfcn.h> |
28 | #include <support/xstdio.h> |
29 | #include <support/support.h> |
30 | |
31 | static int restart; |
32 | #define CMDLINE_OPTIONS \ |
33 | { "restart", no_argument, &restart, 1 }, |
34 | |
35 | static int |
36 | handle_restart (void) |
37 | { |
38 | { |
39 | void *h = xdlmopen (LM_ID_NEWLM, LIBC_SO, RTLD_NOW); |
40 | |
41 | pid_t (*s) (void) = xdlsym (handle: h, symbol: "getpid" ); |
42 | TEST_COMPARE (s (), getpid ()); |
43 | |
44 | xdlclose (handle: h); |
45 | } |
46 | |
47 | { |
48 | void *h = xdlmopen (LM_ID_NEWLM, filename: "tst-audit18mod.so" , RTLD_NOW); |
49 | |
50 | int (*foo) (void) = xdlsym (handle: h, symbol: "foo" ); |
51 | TEST_COMPARE (foo (), 10); |
52 | |
53 | xdlclose (handle: h); |
54 | } |
55 | |
56 | return 0; |
57 | } |
58 | |
59 | static int |
60 | do_test (int argc, char *argv[]) |
61 | { |
62 | /* We must have either: |
63 | - One our fource parameters left if called initially: |
64 | + path to ld.so optional |
65 | + "--library-path" optional |
66 | + the library path optional |
67 | + the application name */ |
68 | |
69 | if (restart) |
70 | return handle_restart (); |
71 | |
72 | char *spargv[9]; |
73 | int i = 0; |
74 | for (; i < argc - 1; i++) |
75 | spargv[i] = argv[i + 1]; |
76 | spargv[i++] = (char *) "--direct" ; |
77 | spargv[i++] = (char *) "--restart" ; |
78 | spargv[i] = NULL; |
79 | |
80 | setenv (name: "LD_AUDIT" , value: "tst-auditmod18.so" , replace: 0); |
81 | struct support_capture_subprocess result |
82 | = support_capture_subprogram (file: spargv[0], argv: spargv); |
83 | support_capture_subprocess_check (&result, context: "tst-audit18" , status_or_signal: 0, allowed: sc_allow_stderr); |
84 | |
85 | struct |
86 | { |
87 | const char *name; |
88 | bool found; |
89 | } audit_iface[] = |
90 | { |
91 | { "la_version" , false }, |
92 | { "la_objsearch" , false }, |
93 | { "la_activity" , false }, |
94 | { "la_objopen" , false }, |
95 | { "la_objclose" , false }, |
96 | { "la_preinit" , false }, |
97 | #if __WORDSIZE == 32 |
98 | { "la_symbind32" , false }, |
99 | #elif __WORDSIZE == 64 |
100 | { "la_symbind64" , false }, |
101 | #endif |
102 | }; |
103 | |
104 | /* Some hooks are called more than once but the test only check if any |
105 | is called at least once. */ |
106 | FILE *out = fmemopen (s: result.err.buffer, len: result.err.length, modes: "r" ); |
107 | TEST_VERIFY (out != NULL); |
108 | char *buffer = NULL; |
109 | size_t buffer_length = 0; |
110 | while (xgetline (lineptr: &buffer, n: &buffer_length, stream: out)) |
111 | { |
112 | for (int i = 0; i < array_length (audit_iface); i++) |
113 | if (strncmp (s1: buffer, s2: audit_iface[i].name, |
114 | n: strlen (s: audit_iface[i].name)) == 0) |
115 | audit_iface[i].found = true; |
116 | } |
117 | free (ptr: buffer); |
118 | xfclose (out); |
119 | |
120 | for (int i = 0; i < array_length (audit_iface); i++) |
121 | TEST_COMPARE (audit_iface[i].found, true); |
122 | |
123 | support_capture_subprocess_free (&result); |
124 | |
125 | return 0; |
126 | } |
127 | |
128 | #define TEST_FUNCTION_ARGV do_test |
129 | #include <support/test-driver.c> |
130 | |