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// SPDX-License-Identifier: GPL-2.0 #include <stdio.h> #include <errno.h> #include <unistd.h> #include <string.h> #include <sys/types.h> #include <sys/socket.h> #include <netinet/in.h> #include "../kselftest.h" struct socket_testcase { int domain; int type; int protocol; /* 0 = valid file descriptor * -foo = error foo */ int expect; /* If non-zero, accept EAFNOSUPPORT to handle the case * of the protocol not being configured into the kernel. */ int nosupport_ok; }; static struct socket_testcase tests[] = { { AF_MAX, 0, 0, -EAFNOSUPPORT, 0 }, { AF_INET, SOCK_STREAM, IPPROTO_TCP, 0, 1 }, { AF_INET, SOCK_DGRAM, IPPROTO_TCP, -EPROTONOSUPPORT, 1 }, { AF_INET, SOCK_DGRAM, IPPROTO_UDP, 0, 1 }, { AF_INET, SOCK_STREAM, IPPROTO_UDP, -EPROTONOSUPPORT, 1 }, }; #define ERR_STRING_SZ 64 static int run_tests(void) { char err_string1[ERR_STRING_SZ]; char err_string2[ERR_STRING_SZ]; int i, err; err = 0; for (i = 0; i < ARRAY_SIZE(tests); i++) { struct socket_testcase *s = &tests[i]; int fd; fd = socket(s->domain, s->type, s->protocol); if (fd < 0) { if (s->nosupport_ok && errno == EAFNOSUPPORT) continue; if (s->expect < 0 && errno == -s->expect) continue; strerror_r(-s->expect, err_string1, ERR_STRING_SZ); strerror_r(errno, err_string2, ERR_STRING_SZ); fprintf(stderr, "socket(%d, %d, %d) expected " "err (%s) got (%s)\n", s->domain, s->type, s->protocol, err_string1, err_string2); err = -1; break; } else { close(fd); if (s->expect < 0) { strerror_r(errno, err_string1, ERR_STRING_SZ); fprintf(stderr, "socket(%d, %d, %d) expected " "success got err (%s)\n", s->domain, s->type, s->protocol, err_string1); err = -1; break; } } } return err; } int main(void) { int err = run_tests(); return err; }