glibc/nss/tst-nss-gai-hv2-canonname.c
Romain Geissler ec6b95c330 Fix leak in getaddrinfo introduced by the fix for CVE-2023-4806 [BZ #30843]
This patch fixes a very recently added leak in getaddrinfo.

Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
2023-09-25 01:21:51 +01:00

67 lines
1.9 KiB
C

/* Test NSS query path for plugins that only implement gethostbyname2
(#30843).
Copyright The GNU Toolchain Authors.
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
<https://www.gnu.org/licenses/>. */
#include <nss.h>
#include <netdb.h>
#include <stdlib.h>
#include <string.h>
#include <mcheck.h>
#include <support/check.h>
#include <support/xstdio.h>
#include "nss/tst-nss-gai-hv2-canonname.h"
#define PREPARE do_prepare
static void do_prepare (int a, char **av)
{
FILE *hosts = xfopen ("/etc/hosts", "w");
for (unsigned i = 2; i < 255; i++)
{
fprintf (hosts, "ff01::ff02:ff03:%u:2\ttest.example.com\n", i);
fprintf (hosts, "192.168.0.%u\ttest.example.com\n", i);
}
xfclose (hosts);
}
static int
do_test (void)
{
mtrace ();
__nss_configure_lookup ("hosts", "test_gai_hv2_canonname");
struct addrinfo hints = {};
struct addrinfo *result = NULL;
hints.ai_family = AF_INET6;
hints.ai_flags = AI_ALL | AI_V4MAPPED | AI_CANONNAME;
int ret = getaddrinfo (QUERYNAME, NULL, &hints, &result);
if (ret != 0)
FAIL_EXIT1 ("getaddrinfo failed: %s\n", gai_strerror (ret));
TEST_COMPARE_STRING (result->ai_canonname, QUERYNAME);
freeaddrinfo(result);
return 0;
}
#include <support/test-driver.c>