2 * Helper functions for tests using sockets
4 * Copyright 2015-2018 Red Hat, Inc.
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License as
8 * published by the Free Software Foundation; either version 2 or
9 * (at your option) version 3 of the License.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, see <http://www.gnu.org/licenses/>.
21 #include "qemu/osdep.h"
22 #include "qemu-common.h"
23 #include "qemu/sockets.h"
24 #include "socket-helpers.h"
27 # define AI_ADDRCONFIG 0
29 #ifndef EAI_ADDRFAMILY
30 # define EAI_ADDRFAMILY 0
33 int socket_can_bind_connect(const char *hostname)
35 int lfd = -1, cfd = -1, afd = -1;
36 struct addrinfo ai, *res = NULL;
37 struct sockaddr_storage ss;
38 socklen_t sslen = sizeof(ss);
40 socklen_t soerrlen = sizeof(soerr);
41 bool check_soerr = false;
45 memset(&ai, 0, sizeof(ai));
46 ai.ai_flags = AI_CANONNAME | AI_ADDRCONFIG;
47 ai.ai_family = AF_UNSPEC;
48 ai.ai_socktype = SOCK_STREAM;
51 rc = getaddrinfo(hostname, NULL, &ai, &res);
53 if (rc == EAI_ADDRFAMILY ||
55 errno = EADDRNOTAVAIL;
62 lfd = qemu_socket(res->ai_family, res->ai_socktype, res->ai_protocol);
67 cfd = qemu_socket(res->ai_family, res->ai_socktype, res->ai_protocol);
72 if (bind(lfd, res->ai_addr, res->ai_addrlen) < 0) {
76 if (listen(lfd, 1) < 0) {
80 if (getsockname(lfd, (struct sockaddr *)&ss, &sslen) < 0) {
84 qemu_set_nonblock(cfd);
85 if (connect(cfd, (struct sockaddr *)&ss, sslen) < 0) {
86 if (errno == EINPROGRESS) {
94 afd = accept(lfd, (struct sockaddr *)&ss, &sslen);
100 if (qemu_getsockopt(cfd, SOL_SOCKET, SO_ERROR, &soerr, &soerrlen) < 0) {
128 int socket_check_protocol_support(bool *has_ipv4, bool *has_ipv6)
130 *has_ipv4 = *has_ipv6 = false;
132 if (socket_can_bind_connect("127.0.0.1") < 0) {
133 if (errno != EADDRNOTAVAIL) {
140 if (socket_can_bind_connect("::1") < 0) {
141 if (errno != EADDRNOTAVAIL) {