141 lines
3.8 KiB
C
141 lines
3.8 KiB
C
/*-
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* Copyright (c) 2005 Maxim Sobolev
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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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/*
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* The reconnect regression test is designed to catch kernel bug that may
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* prevent changing association of already associated datagram unix domain
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* socket when server side of connection has been closed.
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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/uio.h>
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#include <sys/un.h>
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#include <err.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <signal.h>
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#include <string.h>
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#include <unistd.h>
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static char *uds_name1 = NULL;
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static char *uds_name2 = NULL;
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#define sstosa(ss) ((struct sockaddr *)(ss))
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void
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prepare_ifsun(struct sockaddr_un *ifsun, const char *path)
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{
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memset(ifsun, '\0', sizeof(*ifsun));
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#if !defined(__linux__) && !defined(__solaris__)
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ifsun->sun_len = strlen(path);
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#endif
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ifsun->sun_family = AF_LOCAL;
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strcpy(ifsun->sun_path, path);
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}
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int
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create_uds_server(const char *path)
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{
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struct sockaddr_un ifsun;
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int sock;
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prepare_ifsun(&ifsun, path);
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unlink(ifsun.sun_path);
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sock = socket(PF_LOCAL, SOCK_DGRAM, 0);
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if (sock == -1)
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err(1, "can't create socket");
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setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &sock, sizeof(sock));
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if (bind(sock, sstosa(&ifsun), sizeof(ifsun)) < 0)
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err(1, "can't bind to a socket");
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return sock;
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}
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void
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connect_uds_server(int sock, const char *path)
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{
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struct sockaddr_un ifsun;
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int e;
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prepare_ifsun(&ifsun, path);
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e = connect(sock, sstosa(&ifsun), sizeof(ifsun));
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if (e < 0)
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err(1, "can't connect to a socket");
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}
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void
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cleanup(void)
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{
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if (uds_name1 != NULL)
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unlink(uds_name1);
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if (uds_name2 != NULL)
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unlink(uds_name2);
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}
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int
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main()
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{
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int s_sock1, s_sock2, c_sock;
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atexit(cleanup);
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uds_name1 = strdup("/tmp/reconnect.XXXXXX");
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if (uds_name1 == NULL)
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err(1, "can't allocate memory");
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uds_name1 = mktemp(uds_name1);
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if (uds_name1 == NULL)
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err(1, "mktemp(3) failed");
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s_sock1 = create_uds_server(uds_name1);
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uds_name2 = strdup("/tmp/reconnect.XXXXXX");
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if (uds_name2 == NULL)
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err(1, "can't allocate memory");
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uds_name2 = mktemp(uds_name2);
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if (uds_name2 == NULL)
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err(1, "mktemp(3) failed");
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s_sock2 = create_uds_server(uds_name2);
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c_sock = socket(PF_LOCAL, SOCK_DGRAM, 0);
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if (c_sock < 0)
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err(1, "can't create socket");
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connect_uds_server(c_sock, uds_name1);
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close(s_sock1);
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connect_uds_server(c_sock, uds_name2);
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exit (0);
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}
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