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/* Parse /etc/hosts in multi mode with a trailing long line (bug 21915).
Copyright (C) 2017-2021 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
<https://www.gnu.org/licenses/>. */
#include <dlfcn.h>
#include <errno.h>
#include <gnu/lib-names.h>
#include <netdb.h>
#include <nss.h>
#include <support/check.h>
#include <support/check_nss.h>
#include <support/namespace.h>
#include <support/test-driver.h>
#include <support/xunistd.h>
struct support_chroot *chroot_env;
#define X10 "XXXXXXXXXX"
#define X100 X10 X10 X10 X10 X10 X10 X10 X10 X10 X10
#define X1000 X100 X100 X100 X100 X100 X100 X100 X100 X100 X100
static void
prepare (int argc, char **argv)
{
chroot_env = support_chroot_create
((struct support_chroot_configuration)
{
.resolv_conf = "",
.hosts =
"127.0.0.1 localhost localhost.localdomain\n"
"::1 localhost localhost.localdomain\n"
"192.0.2.1 example.com\n"
"#" X1000 X100 "\n",
.host_conf = "multi on\n",
});
}
static int
do_test (void)
{
support_become_root ();
if (!support_can_chroot ())
return EXIT_UNSUPPORTED;
__nss_configure_lookup ("hosts", "files");
if (dlopen (LIBNSS_FILES_SO, RTLD_LAZY) == NULL)
FAIL_EXIT1 ("could not load " LIBNSS_DNS_SO ": %s", dlerror ());
xchroot (chroot_env->path_chroot);
errno = ERANGE;
h_errno = NETDB_INTERNAL;
check_hostent ("gethostbyname example.com",
gethostbyname ("example.com"),
"name: example.com\n"
"address: 192.0.2.1\n");
errno = ERANGE;
h_errno = NETDB_INTERNAL;
check_hostent ("gethostbyname2 AF_INET example.com",
gethostbyname2 ("example.com", AF_INET),
"name: example.com\n"
"address: 192.0.2.1\n");
{
struct addrinfo hints =
{
.ai_family = AF_UNSPEC,
.ai_socktype = SOCK_STREAM,
.ai_protocol = IPPROTO_TCP,
};
errno = ERANGE;
h_errno = NETDB_INTERNAL;
struct addrinfo *ai;
int ret = getaddrinfo ("example.com", "80", &hints, &ai);
check_addrinfo ("example.com AF_UNSPEC", ai, ret,
"address: STREAM/TCP 192.0.2.1 80\n");
if (ret == 0)
freeaddrinfo (ai);
hints.ai_family = AF_INET;
errno = ERANGE;
h_errno = NETDB_INTERNAL;
ret = getaddrinfo ("example.com", "80", &hints, &ai);
check_addrinfo ("example.com AF_INET", ai, ret,
"address: STREAM/TCP 192.0.2.1 80\n");
if (ret == 0)
freeaddrinfo (ai);
}
support_chroot_free (chroot_env);
return 0;
}
#define PREPARE prepare
#include <support/test-driver.c>
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