1 // SPDX-License-Identifier: GPL-2.0-or-later
2
3 /*
4 * Copyright (c) International Business Machines Corp., 2001
5 * 07/2001 Ported by Wayne Boyer
6 */
7
8 /*\
9 * [Description]
10 * Verify that accept() returns the proper errno for various failure cases.
11 */
12
13 #include <stdio.h>
14 #include <unistd.h>
15 #include <errno.h>
16 #include <fcntl.h>
17
18 #include <sys/types.h>
19 #include <sys/socket.h>
20 #include <sys/signal.h>
21
22 #include <netinet/in.h>
23
24 #include "tst_test.h"
25
26 struct sockaddr_in sin0, sin1, fsin1;
27
28 int invalid_socketfd = 400; /* anything that is not an open file */
29 int socket_fd;
30 int udp_fd;
31
32 static struct test_case {
33 int domain; /* PF_INET, PF_UNIX, ... */
34 int type; /* SOCK_STREAM, SOCK_DGRAM ... */
35 int proto; /* protocol number (usually 0 = default) */
36 int *fd; /* File descriptor for the test case */
37 struct sockaddr *sockaddr; /* socket address buffer */
38 socklen_t salen; /* accept's 3rd argument */
39 int experrno; /* expected errno */
40 char *desc;
41 } tcases[] = {
42 {
43 PF_INET, SOCK_STREAM, 0, &invalid_socketfd,
44 (struct sockaddr *)&fsin1, sizeof(fsin1), EBADF,
45 "bad file descriptor"
46 },
47 {
48 PF_INET, SOCK_STREAM, 0, &socket_fd, (struct sockaddr *)3,
49 sizeof(fsin1), EINVAL, "invalid socket buffer"
50 },
51 {
52 PF_INET, SOCK_STREAM, 0, &socket_fd, (struct sockaddr *)&fsin1,
53 1, EINVAL, "invalid salen"
54 },
55 {
56 PF_INET, SOCK_STREAM, 0, &socket_fd, (struct sockaddr *)&fsin1,
57 sizeof(fsin1), EINVAL, "no queued connections"
58 },
59 {
60 PF_INET, SOCK_STREAM, 0, &udp_fd, (struct sockaddr *)&fsin1,
61 sizeof(fsin1), EOPNOTSUPP, "UDP accept"
62 },
63 };
64
test_setup(void)65 static void test_setup(void)
66 {
67 sin0.sin_family = AF_INET;
68 sin0.sin_port = 0;
69 sin0.sin_addr.s_addr = INADDR_ANY;
70
71 socket_fd = SAFE_SOCKET(PF_INET, SOCK_STREAM, 0);
72 SAFE_BIND(socket_fd, (struct sockaddr *)&sin0, sizeof(sin0));
73
74 sin1.sin_family = AF_INET;
75 sin1.sin_port = 0;
76 sin1.sin_addr.s_addr = INADDR_ANY;
77
78 udp_fd = SAFE_SOCKET(PF_INET, SOCK_DGRAM, 0);
79 SAFE_BIND(udp_fd, (struct sockaddr *)&sin1, sizeof(sin1));
80 }
81
test_cleanup(void)82 static void test_cleanup(void)
83 {
84 SAFE_CLOSE(socket_fd);
85 SAFE_CLOSE(udp_fd);
86 }
87
verify_accept(unsigned int nr)88 void verify_accept(unsigned int nr)
89 {
90 struct test_case *tcase = &tcases[nr];
91
92 TST_EXP_FAIL2(accept(*tcase->fd, tcase->sockaddr, &tcase->salen),
93 tcase->experrno, "%s", tcase->desc);
94 }
95
96 static struct tst_test test = {
97 .tcnt = ARRAY_SIZE(tcases),
98 .setup = test_setup,
99 .cleanup = test_cleanup,
100 .test = verify_accept,
101 };
102