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//
// Copyright 2025 Staysail Systems, Inc. <info@staysail.tech>
// Copyright 2018 Capitar IT Group BV <info@capitar.com>
// Copyright 2018 Devolutions <info@devolutions.net>
// Copyright 2018 Cody Piersall <cody.piersall@gmail.com>
//
// This software is supplied under the terms of the MIT License, a
// copy of which should be located in the distribution where this
// file was obtained (LICENSE.txt). A copy of the license may also be
// found online at https://opensource.org/licenses/MIT.
//
#include "nng/protocol/pubsub0/sub.h"
#include <nng/nng.h>
#include <nuts.h>
#ifdef NNG_PLATFORM_POSIX
#include <fcntl.h>
#include <unistd.h>
#ifdef NNG_PLATFORM_SUNOS
#include <zone.h>
#endif
#endif
// Windows complains if we use the POSIX API.
#ifdef NNG_PLATFORM_WINDOWS
#include <io.h>
#define close(fd) _close(fd)
#endif
// FDC tests.
static void
test_sfd_connect_fail(void)
{
nng_socket s;
NUTS_OPEN(s);
NUTS_FAIL(nng_dial(s, "socket://", NULL, 0), NNG_ENOTSUP);
NUTS_CLOSE(s);
}
void
test_sfd_malformed_address(void)
{
nng_socket s1;
NUTS_OPEN(s1);
NUTS_FAIL(nng_listen(s1, "socket://junk", NULL, 0), NNG_EADDRINVAL);
NUTS_CLOSE(s1);
}
void
test_sfd_listen(void)
{
nng_socket s1;
nng_listener l;
const nng_url *u;
NUTS_OPEN(s1);
NUTS_PASS(nng_listen(s1, "socket://", &l, 0));
NUTS_PASS(nng_listener_get_url(l, &u));
NUTS_MATCH(nng_url_scheme(u), "socket");
NUTS_MATCH(nng_url_path(u), "");
NUTS_NULL(nng_url_userinfo(u));
NUTS_NULL(nng_url_hostname(u));
NUTS_NULL(nng_url_query(u));
NUTS_NULL(nng_url_fragment(u));
NUTS_CLOSE(s1);
}
void
test_sfd_accept(void)
{
#ifdef NNG_HAVE_SOCKETPAIR
nng_socket s1, s2;
nng_listener l;
int fds[2];
NUTS_PASS(nng_socket_pair(fds));
// make sure we won't have to deal with SIGPIPE - EPIPE is better
NUTS_OPEN(s1);
NUTS_OPEN(s2);
NUTS_PASS(nng_listener_create(&l, s1, "socket://"));
NUTS_PASS(nng_listener_start(l, 0));
NUTS_PASS(nng_listener_set_int(l, NNG_OPT_SOCKET_FD, fds[0]));
NUTS_SLEEP(10);
NUTS_CLOSE(s1);
close(fds[1]);
#else
NUTS_SKIP("no socketpair");
#endif
}
void
test_sfd_accept_multi(void)
{
#ifdef NNG_HAVE_SOCKETPAIR
nng_socket s1, s2, s3;
nng_listener l1, l2, l3;
int fds1[2];
int fds2[2];
NUTS_PASS(nng_socket_pair(fds1));
NUTS_PASS(nng_socket_pair(fds2));
NUTS_PASS(nng_pub0_open(&s1));
NUTS_PASS(nng_sub0_open(&s2));
NUTS_PASS(nng_sub0_open(&s3));
NUTS_PASS(nng_socket_set_ms(s1, NNG_OPT_SENDTIMEO, 1000));
NUTS_PASS(nng_socket_set_ms(s2, NNG_OPT_RECVTIMEO, 1000));
NUTS_PASS(nng_socket_set_ms(s3, NNG_OPT_RECVTIMEO, 1000));
NUTS_PASS(nng_sub0_socket_subscribe(s2, NULL, 0));
NUTS_PASS(nng_sub0_socket_subscribe(s3, NULL, 0));
NUTS_PASS(nng_listener_create(&l1, s1, "socket://"));
NUTS_PASS(nng_listener_create(&l2, s2, "socket://"));
NUTS_PASS(nng_listener_create(&l3, s3, "socket://"));
NUTS_PASS(nng_listener_start(l1, 0));
NUTS_PASS(nng_listener_start(l2, 0));
NUTS_PASS(nng_listener_start(l3, 0));
NUTS_PASS(nng_listener_set_int(l1, NNG_OPT_SOCKET_FD, fds1[0]));
NUTS_PASS(nng_listener_set_int(l2, NNG_OPT_SOCKET_FD, fds1[1]));
NUTS_PASS(nng_listener_set_int(l1, NNG_OPT_SOCKET_FD, fds2[0]));
NUTS_PASS(nng_listener_set_int(l3, NNG_OPT_SOCKET_FD, fds2[1]));
nng_msleep(200);
NUTS_SEND(s1, "ping");
NUTS_RECV(s2, "ping");
NUTS_RECV(s3, "ping");
NUTS_CLOSE(s1);
NUTS_CLOSE(s2);
NUTS_CLOSE(s3);
#else
NUTS_SKIP("no socketpair");
#endif
}
void
test_sfd_exchange(void)
{
#ifdef NNG_HAVE_SOCKETPAIR
nng_socket s1, s2;
nng_listener l1, l2;
int fds[2];
NUTS_PASS(nng_socket_pair(fds));
NUTS_OPEN(s1);
NUTS_OPEN(s2);
NUTS_PASS(nng_listener_create(&l1, s1, "socket://"));
NUTS_PASS(nng_listener_start(l1, 0));
NUTS_PASS(nng_listener_set_int(l1, NNG_OPT_SOCKET_FD, fds[0]));
NUTS_PASS(nng_listener_create(&l2, s2, "socket://"));
NUTS_PASS(nng_listener_start(l2, 0));
NUTS_PASS(nng_listener_set_int(l2, NNG_OPT_SOCKET_FD, fds[1]));
NUTS_SLEEP(10);
NUTS_SEND(s1, "hello");
NUTS_RECV(s2, "hello");
NUTS_SEND(s2, "there");
NUTS_RECV(s1, "there");
NUTS_CLOSE(s1);
NUTS_CLOSE(s2);
close(fds[1]);
#else
NUTS_SKIP("no socketpair");
#endif
}
void
test_sfd_exchange_late(void)
{
#ifdef NNG_HAVE_SOCKETPAIR
nng_socket s1, s2;
nng_listener l1, l2;
int fds[2];
NUTS_PASS(nng_socket_pair(fds));
NUTS_OPEN(s1);
NUTS_OPEN(s2);
NUTS_PASS(nng_listener_create(&l1, s1, "socket://"));
NUTS_PASS(nng_listener_set_int(l1, NNG_OPT_SOCKET_FD, fds[0]));
NUTS_PASS(nng_listener_start(l1, 0));
NUTS_PASS(nng_listener_create(&l2, s2, "socket://"));
NUTS_PASS(nng_listener_set_int(l2, NNG_OPT_SOCKET_FD, fds[1]));
NUTS_PASS(nng_listener_start(l2, 0));
NUTS_SLEEP(10);
NUTS_SEND(s1, "hello");
NUTS_RECV(s2, "hello");
NUTS_SEND(s2, "there");
NUTS_RECV(s1, "there");
NUTS_CLOSE(s1);
NUTS_CLOSE(s2);
close(fds[1]);
#else
NUTS_SKIP("no socketpair");
#endif
}
void
test_sfd_recv_max(void)
{
#ifdef NNG_HAVE_SOCKETPAIR
char msg[256] = { 0 };
char buf[256] = { 0 };
nng_socket s0;
nng_socket s1;
nng_listener l0;
nng_listener l1;
size_t sz;
size_t scratch;
int fds[2];
NUTS_PASS(nng_socket_pair(fds));
NUTS_OPEN(s0);
NUTS_PASS(nng_socket_set_ms(s0, NNG_OPT_RECVTIMEO, 100));
NUTS_PASS(nng_socket_set_size(s0, NNG_OPT_RECVMAXSZ, 200));
NUTS_PASS(nng_listener_create(&l0, s0, "socket://"));
NUTS_PASS(nng_socket_get_size(s0, NNG_OPT_RECVMAXSZ, &sz));
NUTS_TRUE(sz == 200);
NUTS_PASS(nng_listener_set_size(l0, NNG_OPT_RECVMAXSZ, 100));
NUTS_PASS(nng_listener_get_size(l0, NNG_OPT_RECVMAXSZ, &scratch));
NUTS_ASSERT(scratch == 100);
NUTS_PASS(nng_listener_start(l0, 0));
NUTS_PASS(nng_listener_set_int(l0, NNG_OPT_SOCKET_FD, fds[0]));
NUTS_OPEN(s1);
NUTS_PASS(nng_listener_create(&l1, s1, "socket://"));
NUTS_PASS(nng_listener_start(l1, 0));
NUTS_PASS(nng_listener_set_int(l1, NNG_OPT_SOCKET_FD, fds[1]));
NUTS_PASS(nng_send(s1, msg, 95, 0));
NUTS_PASS(nng_socket_set_ms(s1, NNG_OPT_SENDTIMEO, 100));
NUTS_PASS(nng_recv(s0, buf, &sz, 0));
NUTS_TRUE(sz == 95);
NUTS_PASS(nng_send(s1, msg, 150, 0));
NUTS_FAIL(nng_recv(s0, buf, &sz, 0), NNG_ETIMEDOUT);
NUTS_CLOSE(s0);
NUTS_CLOSE(s1);
#else
NUTS_SKIP("no socketpair");
#endif
}
void
test_sfd_large(void)
{
#ifdef NNG_HAVE_SOCKETPAIR
char *buf;
nng_socket s0;
nng_socket s1;
nng_listener l0;
nng_listener l1;
size_t sz;
nng_msg *msg;
int fds[2];
sz = 1U << 20;
buf = nng_alloc(sz); // a MB
buf[sz - 1] = 0;
memset(buf, 'A', sz - 1);
NUTS_PASS(nng_socket_pair(fds));
NUTS_PASS(nng_msg_alloc(&msg, sz));
NUTS_OPEN(s0);
NUTS_PASS(nng_socket_set_ms(s0, NNG_OPT_RECVTIMEO, 1000));
NUTS_PASS(nng_socket_set_ms(s0, NNG_OPT_SENDTIMEO, 1000));
NUTS_PASS(nng_socket_set_size(s0, NNG_OPT_RECVMAXSZ, 2U << 20));
NUTS_PASS(nng_listener_create(&l0, s0, "socket://"));
NUTS_PASS(nng_listener_start(l0, 0));
NUTS_PASS(nng_listener_set_int(l0, NNG_OPT_SOCKET_FD, fds[0]));
NUTS_OPEN(s1);
NUTS_PASS(nng_socket_set_ms(s1, NNG_OPT_RECVTIMEO, 1000));
NUTS_PASS(nng_socket_set_ms(s1, NNG_OPT_SENDTIMEO, 1000));
NUTS_PASS(nng_socket_set_size(s1, NNG_OPT_RECVMAXSZ, 2U << 20));
NUTS_PASS(nng_listener_create(&l1, s1, "socket://"));
NUTS_PASS(nng_listener_start(l1, 0));
NUTS_PASS(nng_listener_set_int(l1, NNG_OPT_SOCKET_FD, fds[1]));
nng_msleep(100);
nng_msg_clear(msg);
NUTS_PASS(nng_msg_append(msg, buf, sz));
NUTS_PASS(nng_sendmsg(s0, msg, 0));
NUTS_PASS(nng_recvmsg(s1, &msg, 0));
NUTS_ASSERT(strcmp(nng_msg_body(msg), buf) == 0);
memset(nng_msg_body(msg), 'B', sz - 1);
memset(buf, 'B', sz - 1);
NUTS_PASS(nng_sendmsg(s1, msg, 0));
NUTS_PASS(nng_recvmsg(s0, &msg, 0));
NUTS_ASSERT(strcmp(nng_msg_body(msg), buf) == 0);
nng_msg_clear(msg);
NUTS_PASS(nng_msg_append(msg, buf, sz));
NUTS_PASS(nng_sendmsg(s0, msg, 0));
NUTS_PASS(nng_recvmsg(s1, &msg, 0));
NUTS_ASSERT(strcmp(nng_msg_body(msg), buf) == 0);
NUTS_CLOSE(s0);
NUTS_CLOSE(s1);
nng_msg_free(msg);
nng_free(buf, sz);
#else
NUTS_SKIP("no socketpair");
#endif
}
void
test_sockfd_close_pending(void)
{
#ifdef NNG_HAVE_SOCKETPAIR
// this test verifies that closing a socket pair that has not
// started negotiation with the other side still works.
int fds[2];
nng_socket s0;
nng_listener l;
NUTS_PASS(nng_socket_pair(fds));
NUTS_OPEN(s0);
nng_listen(s0, "socket://", &l, 0);
nng_listener_set_int(l, NNG_OPT_SOCKET_FD, fds[0]);
nng_msleep(10);
NUTS_CLOSE(s0);
close(fds[1]);
#else
NUTS_SKIP("no socketpair");
#endif
}
void
test_sockfd_close_peer(void)
{
#ifdef NNG_HAVE_SOCKETPAIR
// this test verifies that closing a socket peer
// during negotiation is ok.
int fds[2];
nng_socket s0;
nng_listener l;
NUTS_PASS(nng_socket_pair(fds));
NUTS_OPEN(s0);
NUTS_PASS(nng_listen(s0, "socket://", &l, 0));
NUTS_PASS(nng_listener_set_int(l, NNG_OPT_SOCKET_FD, fds[0]));
close(fds[1]);
nng_msleep(100);
NUTS_CLOSE(s0);
#else
NUTS_SKIP("no socketpair");
#endif
}
void
test_sockfd_listener_sockaddr(void)
{
#ifdef NNG_HAVE_SOCKETPAIR
// this test verifies that closing a socket peer
// during negotiation is ok.
int fds[2];
nng_socket s0;
nng_listener l;
nng_sockaddr sa;
NUTS_PASS(nng_socket_pair(fds));
NUTS_OPEN(s0);
NUTS_PASS(nng_listen(s0, "socket://", &l, 0));
NUTS_PASS(nng_listener_set_int(l, NNG_OPT_SOCKET_FD, fds[0]));
NUTS_PASS(nng_listener_get_addr(l, NNG_OPT_LOCADDR, &sa));
NUTS_ASSERT(sa.s_family == NNG_AF_UNSPEC);
close(fds[1]);
NUTS_CLOSE(s0);
#else
NUTS_SKIP("no socketpair");
#endif
}
void
test_sockfd_pipe_sockaddr(void)
{
#ifdef NNG_HAVE_SOCKETPAIR
// this test verifies that closing a socket peer
// during negotiation is ok.
int fds[2];
nng_socket s0, s1;
nng_listener l;
nng_sockaddr sa;
nng_msg *msg;
nng_pipe p;
NUTS_PASS(nng_socket_pair(fds));
NUTS_OPEN(s0);
NUTS_OPEN(s1);
NUTS_PASS(nng_listen(s0, "socket://", &l, 0));
NUTS_PASS(nng_listener_set_int(l, NNG_OPT_SOCKET_FD, fds[0]));
NUTS_PASS(nng_listen(s1, "socket://", &l, 0));
NUTS_PASS(nng_listener_set_int(l, NNG_OPT_SOCKET_FD, fds[1]));
NUTS_PASS(nng_socket_set_ms(s0, NNG_OPT_SENDTIMEO, 1000));
NUTS_PASS(nng_socket_set_ms(s0, NNG_OPT_RECVTIMEO, 1000));
NUTS_PASS(nng_socket_set_ms(s1, NNG_OPT_SENDTIMEO, 1000));
NUTS_PASS(nng_socket_set_ms(s1, NNG_OPT_RECVTIMEO, 1000));
NUTS_SEND(s0, "something");
NUTS_PASS(nng_recvmsg(s1, &msg, 0));
p = nng_msg_get_pipe(msg);
NUTS_PASS(nng_pipe_get_addr(p, NNG_OPT_LOCADDR, &sa));
NUTS_ASSERT(sa.s_family == NNG_AF_UNSPEC);
NUTS_PASS(nng_pipe_get_addr(p, NNG_OPT_REMADDR, &sa));
NUTS_ASSERT(sa.s_family == NNG_AF_UNSPEC);
NUTS_CLOSE(s0);
NUTS_CLOSE(s1);
nng_msg_free(msg);
#else
NUTS_SKIP("no socketpair");
#endif
}
void
test_sockfd_pipe_peer(void)
{
#ifdef NNG_HAVE_SOCKETPAIR
// this test verifies that closing a socket peer
// during negotiation is ok.
int fds[2];
nng_socket s0, s1;
nng_listener l;
nng_msg *msg;
nng_pipe p;
int id;
NUTS_PASS(nng_socket_pair(fds));
NUTS_OPEN(s0);
NUTS_OPEN(s1);
NUTS_PASS(nng_listen(s0, "socket://", &l, 0));
NUTS_PASS(nng_listener_set_int(l, NNG_OPT_SOCKET_FD, fds[0]));
NUTS_PASS(nng_listen(s1, "socket://", &l, 0));
NUTS_PASS(nng_listener_set_int(l, NNG_OPT_SOCKET_FD, fds[1]));
NUTS_PASS(nng_socket_set_ms(s0, NNG_OPT_SENDTIMEO, 1000));
NUTS_PASS(nng_socket_set_ms(s0, NNG_OPT_RECVTIMEO, 1000));
NUTS_PASS(nng_socket_set_ms(s1, NNG_OPT_SENDTIMEO, 1000));
NUTS_PASS(nng_socket_set_ms(s1, NNG_OPT_RECVTIMEO, 1000));
NUTS_SEND(s0, "something");
NUTS_PASS(nng_recvmsg(s1, &msg, 0));
p = nng_msg_get_pipe(msg);
NUTS_ASSERT(nng_pipe_id(p) != -1);
#if defined(NNG_PLATFORM_DARWIN) || defined(NNG_PLATFORM_LINUX)
NUTS_PASS(nng_pipe_get_int(p, NNG_OPT_PEER_PID, &id));
NUTS_ASSERT(id == (int) getpid());
#endif
#if defined(NNG_PLATFORM_DARWIN) || defined(NNG_PLATFORM_LINUX)
NUTS_PASS(nng_pipe_get_int(p, NNG_OPT_PEER_UID, &id));
NUTS_ASSERT(id == (int) getuid());
#endif
#if defined(NNG_PLATFORM_DARWIN) || defined(NNG_PLATFORM_LINUX)
NUTS_PASS(nng_pipe_get_int(p, NNG_OPT_PEER_GID, &id));
NUTS_ASSERT(id == (int) getgid());
#endif
#if defined(NNG_PLATFORM_SUNOS)
NUTS_PASS(nng_pipe_get_int(p, NNG_OPT_PEER_ZONEID, &id));
NUTS_ASSERT(id == (int) getzoneid());
#else
NUTS_FAIL(nng_pipe_get_int(p, NNG_OPT_PEER_ZONEID, &id), NNG_ENOTSUP);
#endif
nng_msg_free(msg);
NUTS_CLOSE(s0);
NUTS_CLOSE(s1);
#else
NUTS_SKIP("no socketpair");
#endif
}
void
test_sfd_listen_full(void)
{
#ifndef NNG_SFD_LISTEN_QUEUE
#define NNG_SFD_LISTEN_QUEUE 16
#endif
#ifdef NNG_HAVE_SOCKETPAIR
int fds[NNG_SFD_LISTEN_QUEUE * 2];
nng_socket s;
int i;
nng_listener l;
for (i = 0; i < NNG_SFD_LISTEN_QUEUE * 2; i += 2) {
int pair[2];
NUTS_PASS(nng_socket_pair(pair));
fds[i] = pair[0];
fds[i + 1] = pair[1];
}
NUTS_OPEN(s);
NUTS_PASS(nng_listener_create(&l, s, "socket://"));
for (i = 0; i < NNG_SFD_LISTEN_QUEUE * 2; i++) {
if (i < NNG_SFD_LISTEN_QUEUE) {
NUTS_PASS(nng_listener_set_int(
l, NNG_OPT_SOCKET_FD, fds[i]));
} else {
NUTS_FAIL(
nng_listener_set_int(l, NNG_OPT_SOCKET_FD, fds[i]),
NNG_ENOSPC);
}
}
for (i = 0; i < NNG_SFD_LISTEN_QUEUE * 2; i++) {
close(fds[i]);
}
NUTS_CLOSE(s);
#else
NUTS_SKIP("no socketpair");
#endif
}
void
test_sfd_fd_option_type(void)
{
#ifdef NNG_HAVE_SOCKETPAIR
nng_socket s;
nng_listener l;
NUTS_OPEN(s);
NUTS_PASS(nng_listener_create(&l, s, "socket://"));
NUTS_FAIL(
nng_listener_set_bool(l, NNG_OPT_SOCKET_FD, false), NNG_EBADTYPE);
NUTS_CLOSE(s);
#else
NUTS_SKIP("no socketpair");
#endif
}
void
test_sfd_fd_invalid_fd(void)
{
#ifdef NNG_HAVE_SOCKETPAIR
nng_socket s;
nng_listener l;
NUTS_OPEN(s);
NUTS_PASS(nng_listener_create(&l, s, "socket://"));
NUTS_FAIL(
nng_listener_set_int(l, NNG_OPT_SOCKET_FD, -100), NNG_EINVAL);
NUTS_CLOSE(s);
#else
NUTS_SKIP("no socketpair");
#endif
}
void
test_sfd_fd_dev_zero(void)
{
#ifdef NNG_HAVE_SOCKETPAIR
nng_socket s;
nng_listener l;
int fd;
// dev/zero produces a stream of zero bytes leading to protocol error
NUTS_ASSERT((fd = open("/dev/zero", O_RDONLY, 0777)) >= 0);
NUTS_OPEN(s);
NUTS_PASS(nng_listener_create(&l, s, "socket://"));
NUTS_PASS(nng_listener_set_int(l, NNG_OPT_SOCKET_FD, fd));
nng_msleep(100);
NUTS_CLOSE(s);
#else
NUTS_SKIP("no socketpair");
#endif
}
NUTS_TESTS = {
{ "socket connect fail", test_sfd_connect_fail },
{ "socket malformed address", test_sfd_malformed_address },
{ "socket listen", test_sfd_listen },
{ "socket accept", test_sfd_accept },
{ "socket accept multi", test_sfd_accept_multi },
{ "socket exchange", test_sfd_exchange },
{ "socket exchange late", test_sfd_exchange_late },
{ "socket recv max", test_sfd_recv_max },
{ "socket exchange large", test_sfd_large },
{ "socket close pending", test_sockfd_close_pending },
{ "socket close peer", test_sockfd_close_peer },
{ "socket listener address", test_sockfd_listener_sockaddr },
{ "socket pipe address", test_sockfd_pipe_sockaddr },
{ "socket pipe peer id", test_sockfd_pipe_peer },
{ "socket listen full", test_sfd_listen_full },
{ "socket bad fd type", test_sfd_fd_option_type },
{ "socket invalid fd", test_sfd_fd_invalid_fd },
{ "socket dev zero", test_sfd_fd_dev_zero },
{ NULL, NULL },
};
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