1 // SPDX-License-Identifier: GPL-2.0 2 #include <stdio.h> 3 #include <errno.h> 4 #include <unistd.h> 5 #include <string.h> 6 #include <sys/types.h> 7 #include <sys/socket.h> 8 #include <netinet/in.h> 9 10 #include "../kselftest.h" 11 12 struct socket_testcase { 13 int domain; 14 int type; 15 int protocol; 16 17 /* 0 = valid file descriptor 18 * -foo = error foo 19 */ 20 int expect; 21 22 /* If non-zero, accept EAFNOSUPPORT to handle the case 23 * of the protocol not being configured into the kernel. 24 */ 25 int nosupport_ok; 26 }; 27 28 static struct socket_testcase tests[] = { 29 { AF_MAX, 0, 0, -EAFNOSUPPORT, 0 }, 30 { AF_INET, SOCK_STREAM, IPPROTO_TCP, 0, 1 }, 31 { AF_INET, SOCK_DGRAM, IPPROTO_TCP, -EPROTONOSUPPORT, 1 }, 32 { AF_INET, SOCK_DGRAM, IPPROTO_UDP, 0, 1 }, 33 { AF_INET, SOCK_STREAM, IPPROTO_UDP, -EPROTONOSUPPORT, 1 }, 34 }; 35 36 #define ERR_STRING_SZ 64 37 38 static int run_tests(void) 39 { 40 char err_string1[ERR_STRING_SZ]; 41 char err_string2[ERR_STRING_SZ]; 42 int i, err; 43 44 err = 0; 45 for (i = 0; i < ARRAY_SIZE(tests); i++) { 46 struct socket_testcase *s = &tests[i]; 47 int fd; 48 49 fd = socket(s->domain, s->type, s->protocol); 50 if (fd < 0) { 51 if (s->nosupport_ok && 52 errno == EAFNOSUPPORT) 53 continue; 54 55 if (s->expect < 0 && 56 errno == -s->expect) 57 continue; 58 59 strerror_r(-s->expect, err_string1, ERR_STRING_SZ); 60 strerror_r(errno, err_string2, ERR_STRING_SZ); 61 62 fprintf(stderr, "socket(%d, %d, %d) expected " 63 "err (%s) got (%s)\n", 64 s->domain, s->type, s->protocol, 65 err_string1, err_string2); 66 67 err = -1; 68 break; 69 } else { 70 close(fd); 71 72 if (s->expect < 0) { 73 strerror_r(errno, err_string1, ERR_STRING_SZ); 74 75 fprintf(stderr, "socket(%d, %d, %d) expected " 76 "success got err (%s)\n", 77 s->domain, s->type, s->protocol, 78 err_string1); 79 80 err = -1; 81 break; 82 } 83 } 84 } 85 86 return err; 87 } 88 89 int main(void) 90 { 91 int err = run_tests(); 92 93 return err; 94 } 95