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/* Test to verify that overlong hostname is rejected by clnt_create
and doesn't cause a buffer overflow (bug 22542).
Copyright (C) 2022 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include <errno.h>
#include <rpc/clnt.h>
#include <string.h>
#include <support/check.h>
#include <sys/socket.h>
#include <sys/un.h>
static int
do_test (void)
{
/* Create an arbitrary hostname that's longer than fits in sun_path. */
char name [sizeof ((struct sockaddr_un*)0)->sun_path * 2];
memset (name, 'x', sizeof name - 1);
name [sizeof name - 1] = '\0';
errno = 0;
CLIENT *clnt = clnt_create (name, 0, 0, "unix");
TEST_VERIFY (clnt == NULL);
TEST_COMPARE (errno, EINVAL);
return 0;
}
#include <support/test-driver.c>
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