1/* Test getent doesn't fail with long /etc/hosts lines (Bug 21915).
2 Copyright (C) 2019-2022 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public License as
7 published by the Free Software Foundation; either version 2.1 of the
8 License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; see the file COPYING.LIB. If
17 not, see <https://www.gnu.org/licenses/>. */
18
19/* This test runs getent twice to parse a /etc/hosts with a very
20 long line. Prior to fixing this parser this would crash getent. */
21
22#include <stdlib.h>
23#include <nss.h>
24#include <support/check.h>
25
26static int
27do_test (void)
28{
29 int ret;
30
31 /* Run getent to fetch the IPv4 address for host test4. This forces
32 /etc/hosts to be parsed. Use --no-addrconfig to return addresses
33 even in an IPv6-only environment. */
34 ret = system(command: "getent --no-addrconfig ahostsv4 test4");
35 if (ret != 0)
36 FAIL_EXIT1("ahostsv4 failed");
37
38 /* Likewise for IPv6. */
39 ret = system(command: "getent --no-addrconfig ahostsv6 test6");
40 if (ret != 0)
41 FAIL_EXIT1("ahostsv6 failed");
42
43 exit (0);
44}
45
46#include <support/test-driver.c>
47

source code of glibc/nss/tst-nss-files-hosts-long.c