net: Add socket() system call self test.
[linux-3.10.git] / tools / testing / selftests / net-socket / socket.c
1 #include <stdio.h>
2 #include <errno.h>
3 #include <unistd.h>
4 #include <string.h>
5 #include <sys/types.h>
6 #include <sys/socket.h>
7 #include <netinet/in.h>
8
9 struct socket_testcase {
10         int     domain;
11         int     type;
12         int     protocol;
13
14         /* 0    = valid file descriptor
15          * -foo = error foo
16          */
17         int     expect;
18
19         /* If non-zero, accept EAFNOSUPPORT to handle the case
20          * of the protocol not being configured into the kernel.
21          */
22         int     nosupport_ok;
23 };
24
25 static struct socket_testcase tests[] = {
26         { AF_MAX,  0,           0,           -EAFNOSUPPORT,    0 },
27         { AF_INET, SOCK_STREAM, IPPROTO_TCP, 0,                1  },
28         { AF_INET, SOCK_DGRAM,  IPPROTO_TCP, -EPROTONOSUPPORT, 1  },
29         { AF_INET, SOCK_DGRAM,  IPPROTO_UDP, 0,                1  },
30         { AF_INET, SOCK_STREAM, IPPROTO_UDP, -EPROTONOSUPPORT, 1  },
31 };
32
33 #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
34 #define ERR_STRING_SZ   64
35
36 static int run_tests(void)
37 {
38         char err_string1[ERR_STRING_SZ];
39         char err_string2[ERR_STRING_SZ];
40         int i, err;
41
42         err = 0;
43         for (i = 0; i < ARRAY_SIZE(tests); i++) {
44                 struct socket_testcase *s = &tests[i];
45                 int fd;
46
47                 fd = socket(s->domain, s->type, s->protocol);
48                 if (fd < 0) {
49                         if (s->nosupport_ok &&
50                             errno == EAFNOSUPPORT)
51                                 continue;
52
53                         if (s->expect < 0 &&
54                             errno == -s->expect)
55                                 continue;
56
57                         strerror_r(-s->expect, err_string1, ERR_STRING_SZ);
58                         strerror_r(errno, err_string2, ERR_STRING_SZ);
59
60                         fprintf(stderr, "socket(%d, %d, %d) expected "
61                                 "err (%s) got (%s)\n",
62                                 s->domain, s->type, s->protocol,
63                                 err_string1, err_string2);
64
65                         err = -1;
66                         break;
67                 } else {
68                         close(fd);
69
70                         if (s->expect < 0) {
71                                 strerror_r(errno, err_string1, ERR_STRING_SZ);
72
73                                 fprintf(stderr, "socket(%d, %d, %d) expected "
74                                         "success got err (%s)\n",
75                                         s->domain, s->type, s->protocol,
76                                         err_string1);
77
78                                 err = -1;
79                                 break;
80                         }
81                 }
82         }
83
84         return err;
85 }
86
87 int main(void)
88 {
89         int err = run_tests();
90
91         return err;
92 }