115 lines
3.4 KiB
C
115 lines
3.4 KiB
C
/*-
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* Copyright (c) 2017 Hartmut Brandt <harti@FreeBSD.org>
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* Copyright (c) 2017 Gleb Smirnoff <glebius@FreeBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <sys/event.h>
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#include <sys/filio.h>
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#include <sys/ioctl.h>
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#include <netinet/in.h>
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#include <err.h>
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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/*
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* This regression test is against a scenario when a socket is first added
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* to a kqueue, and only then is put into listening state.
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* This weird scenario was made a valid one in r313043, and shouldn't be
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* broken later.
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*/
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int
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main()
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{
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struct sockaddr_in addr;
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struct kevent ev[2];
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socklen_t socklen;
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int kq, sock, opt, pid, nev, fd;
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if ((kq = kqueue()) == -1)
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err(1, "kqueue");
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if ((sock = socket(PF_INET, SOCK_STREAM, 0)) == -1)
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err(1, "socket");
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EV_SET(&ev[0], sock, EVFILT_READ, EV_ADD | EV_CLEAR, 0, 0, NULL);
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EV_SET(&ev[1], sock, EVFILT_WRITE, EV_ADD | EV_CLEAR, 0, 0, NULL);
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opt = 1;
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if (setsockopt(sock, SOL_SOCKET, SO_NOSIGPIPE, &opt, sizeof(opt)) == -1)
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err(1, "setsockopt");
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if (kevent(kq, ev, 2, NULL, 0, NULL) == -1)
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err(1, "kevent");
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if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt)) == -1)
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err(1, "setsockopt");
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memset(&addr, 0, sizeof(addr));
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addr.sin_family = AF_INET;
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addr.sin_port = htons(10000);
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if (bind(sock, (struct sockaddr *)&addr, sizeof(addr)) == -1)
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err(1, "bind");
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if (listen(sock, 0x80) == -1)
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err(1, "listen");
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if (ioctl(sock, FIONBIO, &opt) == -1)
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err(1, "ioctl(FIONBIO)");
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if (kevent(kq, ev, 2, NULL, 0, NULL) == -1)
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err(1, "kevent");
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pid = fork();
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if (pid == -1)
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err(1, "fork");
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if (pid == 0) {
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if (close(sock) == -1)
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err(1, "close");
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if ((sock = socket(PF_INET, SOCK_STREAM, 0)) == -1)
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err(1, "socket");
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if (connect(sock, (struct sockaddr *)&addr, sizeof(addr)) == -1)
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err(1, "connect");
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} else {
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nev = kevent(kq, NULL, 0, ev, 2, NULL);
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if (nev < 1)
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err(1, "kevent");
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for (int i = 0; i < nev; ++i) {
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if (ev[i].ident == (uintptr_t )sock) {
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fd = accept(ev[i].ident,
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(struct sockaddr *)&addr, &socklen);
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if (fd == -1)
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err(1, "accept");
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printf("OK\n");
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}
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}
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}
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}
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