/*-
* Copyright (c) 2006 Bruce M. Simpson
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/*
* Regression test for uiomove in kernel; specifically for PR kern/38495.
*/
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <stdlib.h>
#include <signal.h>
#include <setjmp.h>
#include <string.h>
#include <err.h>
#include <errno.h>
#include <unistd.h>
static char socket_path[] = "tmp.XXXXXX";
static jmp_buf myjmpbuf;
static void handle_sigalrm(int signo __unused)
{
longjmp(myjmpbuf, 1);
}
int
main(void)
{
struct sockaddr_un un;
pid_t pid;
int s;
if (mkstemp(socket_path) == -1)
err(1, "mkstemp");
s = socket(PF_LOCAL, SOCK_DGRAM, 0);
if (s == -1)
errx(-1, "socket");
memset(&un, 0, sizeof(un));
un.sun_family = AF_LOCAL;
unlink(socket_path);
strcpy(un.sun_path, socket_path);
if (bind(s, (struct sockaddr *)&un, sizeof(un)) == -1)
errx(-1, "bind");
pid = fork();
if (pid == -1)
errx(-1, "fork");
if (pid == 0) {
int conn;
char buf[] = "AAAAAAAAA";
close(s);
conn = socket(AF_LOCAL, SOCK_DGRAM, 0);
if (conn == -1)
errx(-1,"socket");
if (sendto(conn, buf, sizeof(buf), 0, (struct sockaddr *)&un,
sizeof(un)) != sizeof(buf))
errx(-1,"sendto");
close(conn);
_exit(0);
}
sleep(5);
/* Make sure the data is there when we try to receive it. */
if (recvfrom(s, (void *)-1, 1, 0, NULL, NULL) != -1)
errx(-1,"recvfrom succeeded when failure expected");
(void)signal(SIGALRM, handle_sigalrm);
if (setjmp(myjmpbuf) == 0) {
/*
* This recvfrom will panic an unpatched system, and block
* a patched one.
*/
alarm(5);
(void)recvfrom(s, (void *)-1, 1, 0, NULL, NULL);
}
/* We should reach here via longjmp() and all should be well. */
return (0);
}
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