1 // SPDX-License-Identifier: GPL-2.0-or-later
2
3 /*
4 * Copyright (c) International Business Machines Corp., 2001
5 */
6
7 #include <stdio.h>
8 #include <unistd.h>
9 #include <errno.h>
10 #include <fcntl.h>
11
12 #include <sys/types.h>
13 #include <sys/socket.h>
14 #include <sys/un.h>
15
16 #include <netinet/in.h>
17
18 #include "tst_test.h"
19
20 #define DIR_ENOTDIR "dir_enotdir"
21 #define TEST_ENOTDIR "test_enotdir"
22
23 static int inet_socket;
24 static int dev_null;
25 static int fd_ebadf = -1;
26 static int fd_enotdir;
27
28 static struct sockaddr_in sin1, sin2, sin3;
29 static struct sockaddr_un sun, sock_enotdir;
30
31 static struct test_case {
32 int *socket_fd;
33 struct sockaddr *sockaddr;
34 socklen_t salen;
35 int retval;
36 int experrno;
37 char *desc;
38 } tcases[] = {
39 { &inet_socket, (struct sockaddr *)&sin1, 3, -1,
40 EINVAL, "invalid salen" },
41 { &dev_null, (struct sockaddr *)&sin1, sizeof(sin1), -1,
42 ENOTSOCK, "invalid socket" },
43 { &inet_socket, (struct sockaddr *)&sin2, sizeof(sin2), 0,
44 0, "INADDR_ANYPORT"},
45 { &inet_socket, (struct sockaddr *)&sun, sizeof(sun), -1,
46 EAFNOSUPPORT, "UNIX-domain of current directory" },
47 { &inet_socket, (struct sockaddr *)&sin3, sizeof(sin3), -1,
48 EADDRNOTAVAIL, "non-local address" },
49 { &fd_ebadf, (struct sockaddr *)&sin1, sizeof(sin1), -1,
50 EBADF, "sockfd is not a valid file descriptor" },
51 { &fd_enotdir, (struct sockaddr *)&sock_enotdir, sizeof(sock_enotdir), -1,
52 ENOTDIR, "a component of addr prefix is not a directory"},
53 };
54
verify_bind(unsigned int nr)55 static void verify_bind(unsigned int nr)
56 {
57 struct test_case *tcase = &tcases[nr];
58
59 if (tcase->experrno) {
60 TST_EXP_FAIL(bind(*tcase->socket_fd, tcase->sockaddr, tcase->salen),
61 tcase->experrno, "%s", tcase->desc);
62 } else {
63 TST_EXP_PASS(bind(*tcase->socket_fd, tcase->sockaddr, tcase->salen),
64 "%s", tcase->desc);
65 SAFE_CLOSE(inet_socket);
66 inet_socket = SAFE_SOCKET(PF_INET, SOCK_STREAM, 0);
67 }
68 }
69
test_setup(void)70 static void test_setup(void)
71 {
72 /* initialize sockaddr's */
73 sin1.sin_family = AF_INET;
74 /* this port must be unused! */
75 sin1.sin_port = TST_GET_UNUSED_PORT(AF_INET, SOCK_STREAM);
76 sin1.sin_addr.s_addr = INADDR_ANY;
77
78 sin2.sin_family = AF_INET;
79 sin2.sin_port = 0;
80 sin2.sin_addr.s_addr = INADDR_ANY;
81
82 sin3.sin_family = AF_INET;
83 sin3.sin_port = 0;
84 /* assumes 10.255.254.253 is not a local interface address! */
85 sin3.sin_addr.s_addr = htonl(0x0AFFFEFD);
86
87 sun.sun_family = AF_UNIX;
88 strncpy(sun.sun_path, ".", sizeof(sun.sun_path));
89
90 SAFE_TOUCH(DIR_ENOTDIR, 0777, NULL);
91 sock_enotdir.sun_family = AF_UNIX;
92 strncpy(sock_enotdir.sun_path, DIR_ENOTDIR "/" TEST_ENOTDIR,
93 sizeof(sock_enotdir.sun_path));
94
95 inet_socket = SAFE_SOCKET(PF_INET, SOCK_STREAM, 0);
96 dev_null = SAFE_OPEN("/dev/null", O_WRONLY);
97 fd_enotdir = SAFE_SOCKET(AF_UNIX, SOCK_STREAM, 0);
98 }
99
test_cleanup(void)100 static void test_cleanup(void)
101 {
102 SAFE_CLOSE(inet_socket);
103 SAFE_CLOSE(dev_null);
104 SAFE_CLOSE(fd_enotdir);
105 }
106
107 static struct tst_test test = {
108 .tcnt = ARRAY_SIZE(tcases),
109 .setup = test_setup,
110 .cleanup = test_cleanup,
111 .test = verify_bind,
112 .needs_tmpdir = 1,
113 };
114