1 /*
2 * Check decoding of sockname family syscalls.
3 *
4 * Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org>
5 * Copyright (c) 2016-2018 The strace developers.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. The name of the author may not be used to endorse or promote products
17 * derived from this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31 #include "tests.h"
32 #include <stddef.h>
33 #include <stdio.h>
34 #include <string.h>
35 #include <signal.h>
36 #include <unistd.h>
37 #include <sys/wait.h>
38 #include <sys/socket.h>
39 #include <sys/un.h>
40
41 #ifndef TEST_SYSCALL_NAME
42 # error TEST_SYSCALL_NAME must be defined
43 #endif
44
45 #ifndef TEST_SYSCALL_STR
46 # define TEST_SYSCALL_STR STRINGIFY_VAL(TEST_SYSCALL_NAME)
47 #endif
48 #define TEST_SOCKET TEST_SYSCALL_STR ".socket"
49
50 #ifdef TEST_SYSCALL_PREPARE
51 # define PREPARE_TEST_SYSCALL_INVOCATION do { TEST_SYSCALL_PREPARE; } while (0)
52 #else
53 # define PREPARE_TEST_SYSCALL_INVOCATION do {} while (0)
54 #endif
55
56 #ifndef PREFIX_S_ARGS
57 # define PREFIX_S_ARGS
58 #endif
59 #ifndef PREFIX_F_ARGS
60 # define PREFIX_F_ARGS
61 #endif
62 #ifndef PREFIX_S_STR
63 # define PREFIX_S_STR ""
64 #endif
65 #ifndef PREFIX_F_STR
66 # define PREFIX_F_STR ""
67 #endif
68 #ifndef SUFFIX_ARGS
69 # define SUFFIX_ARGS
70 #endif
71 #ifndef SUFFIX_STR
72 # define SUFFIX_STR ""
73 #endif
74
75 static void
test_sockname_syscall(const int fd)76 test_sockname_syscall(const int fd)
77 {
78 TAIL_ALLOC_OBJECT_CONST_PTR(socklen_t, plen);
79 *plen = sizeof(struct sockaddr_un);
80 struct sockaddr_un *addr = tail_alloc(*plen);
81
82 PREPARE_TEST_SYSCALL_INVOCATION;
83 int rc = TEST_SYSCALL_NAME(fd PREFIX_S_ARGS, (void *) addr,
84 plen SUFFIX_ARGS);
85 if (rc < 0)
86 perror_msg_and_skip(TEST_SYSCALL_STR);
87 printf("%s(%d%s, {sa_family=AF_UNIX, sun_path=\"%s\"}"
88 ", [%d->%d]%s) = %d\n",
89 TEST_SYSCALL_STR, fd, PREFIX_S_STR, addr->sun_path,
90 (int) sizeof(struct sockaddr_un), (int) *plen, SUFFIX_STR, rc);
91
92 memset(addr, 0, sizeof(*addr));
93 PREPARE_TEST_SYSCALL_INVOCATION;
94 rc = TEST_SYSCALL_NAME(fd PREFIX_S_ARGS, (void *) addr,
95 plen SUFFIX_ARGS);
96 if (rc < 0)
97 perror_msg_and_skip(TEST_SYSCALL_STR);
98 printf("%s(%d%s, {sa_family=AF_UNIX, sun_path=\"%s\"}"
99 ", [%d]%s) = %d\n",
100 TEST_SYSCALL_STR, fd, PREFIX_S_STR, addr->sun_path,
101 (int) *plen, SUFFIX_STR, rc);
102
103 PREPARE_TEST_SYSCALL_INVOCATION;
104 rc = TEST_SYSCALL_NAME(fd PREFIX_F_ARGS, (void *) addr, 0 SUFFIX_ARGS);
105 printf("%s(%d%s, %p, NULL%s) = %s\n",
106 TEST_SYSCALL_STR, fd, PREFIX_F_STR, addr, SUFFIX_STR,
107 sprintrc(rc));
108
109 PREPARE_TEST_SYSCALL_INVOCATION;
110 rc = TEST_SYSCALL_NAME(fd PREFIX_S_ARGS, 0, 0 SUFFIX_ARGS);
111 printf("%s(%d%s, NULL, NULL%s) = %s\n",
112 TEST_SYSCALL_STR, fd, rc == -1 ? PREFIX_F_STR : PREFIX_S_STR,
113 SUFFIX_STR, sprintrc(rc));
114
115 PREPARE_TEST_SYSCALL_INVOCATION;
116 rc = TEST_SYSCALL_NAME(fd PREFIX_F_ARGS, (void *) addr,
117 plen + 1 SUFFIX_ARGS);
118 printf("%s(%d%s, %p, %p%s) = %s\n",
119 TEST_SYSCALL_STR, fd, PREFIX_F_STR, addr,
120 plen + 1, SUFFIX_STR, sprintrc(rc));
121
122 const size_t offsetof_sun_path = offsetof(struct sockaddr_un, sun_path);
123 *plen = offsetof_sun_path;
124 memset(addr->sun_path, 'A', sizeof(addr->sun_path));
125
126 PREPARE_TEST_SYSCALL_INVOCATION;
127 rc = TEST_SYSCALL_NAME(fd PREFIX_S_ARGS, (void *) addr,
128 plen SUFFIX_ARGS);
129 if (rc < 0)
130 perror_msg_and_skip(TEST_SYSCALL_STR);
131 printf("%s(%d%s, {sa_family=AF_UNIX}, [%d->%d]%s) = %d\n",
132 TEST_SYSCALL_STR, fd, PREFIX_S_STR,
133 (int) offsetof_sun_path, (int) *plen, SUFFIX_STR, rc);
134
135 ++addr;
136 *plen = sizeof(struct sockaddr);
137 addr = (void *) addr - *plen;
138
139 PREPARE_TEST_SYSCALL_INVOCATION;
140 rc = TEST_SYSCALL_NAME(fd PREFIX_S_ARGS, (void *) addr,
141 plen SUFFIX_ARGS);
142 if (rc < 0)
143 perror_msg_and_skip(TEST_SYSCALL_STR);
144 printf("%s(%d%s, {sa_family=AF_UNIX, sun_path=\"%.*s\"}"
145 ", [%d->%d]%s) = %d\n",
146 TEST_SYSCALL_STR, fd, PREFIX_S_STR,
147 (int) (sizeof(struct sockaddr) - offsetof_sun_path),
148 addr->sun_path, (int) sizeof(struct sockaddr),
149 (int) *plen, SUFFIX_STR, rc);
150
151 PREPARE_TEST_SYSCALL_INVOCATION;
152 rc = TEST_SYSCALL_NAME(fd PREFIX_F_ARGS, (void *) addr,
153 plen SUFFIX_ARGS);
154 printf("%s(%d%s, %p, [%d]%s) = %s\n",
155 TEST_SYSCALL_STR, fd, PREFIX_F_STR, addr,
156 *plen, SUFFIX_STR, sprintrc(rc));
157 }
158