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 const char *msg1, *msg2; 43 int i, err; 44 45 err = 0; 46 for (i = 0; i < ARRAY_SIZE(tests); i++) { 47 struct socket_testcase *s = &tests[i]; 48 int fd; 49 50 fd = socket(s->domain, s->type, s->protocol); 51 if (fd < 0) { 52 if (s->nosupport_ok && 53 errno == EAFNOSUPPORT) 54 continue; 55 56 if (s->expect < 0 && 57 errno == -s->expect) 58 continue; 59 60 msg1 = strerror_r(-s->expect, err_string1, ERR_STRING_SZ); 61 msg2 = strerror_r(errno, err_string2, ERR_STRING_SZ); 62 63 fprintf(stderr, "socket(%d, %d, %d) expected " 64 "err (%s) got (%s)\n", 65 s->domain, s->type, s->protocol, 66 msg1, msg2); 67 68 err = -1; 69 break; 70 } else { 71 close(fd); 72 73 if (s->expect < 0) { 74 msg1 = strerror_r(errno, err_string1, ERR_STRING_SZ); 75 76 fprintf(stderr, "socket(%d, %d, %d) expected " 77 "success got err (%s)\n", 78 s->domain, s->type, s->protocol, 79 msg1); 80 81 err = -1; 82 break; 83 } 84 } 85 } 86 87 return err; 88 } 89 90 int main(void) 91 { 92 int err = run_tests(); 93 94 return err; 95 } 96