mirror of git://sourceware.org/git/glibc.git
97 lines
2.6 KiB
C
97 lines
2.6 KiB
C
/* Test long entries and truncated numbers in /etc/networks (bug 32573/32575).
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Copyright (C) 2025 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <netdb.h>
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#include <gnu/lib-names.h>
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#include <nss.h>
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#include <stddef.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <support/check.h>
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#include <support/check_nss.h>
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#include <support/namespace.h>
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#include <support/test-driver.h>
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#include <support/xdlfcn.h>
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#include <support/xunistd.h>
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#include <sys/resource.h>
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#define STACK_LIM 1048576
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#define STRING_SIZE (2 * STACK_LIM)
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struct support_chroot *chroot_env;
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static void
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prepare (int argc, char **argv)
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{
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int ret;
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char *content;
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char *entry = malloc (STRING_SIZE);
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struct rlimit lim;
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getrlimit (RLIMIT_STACK, &lim);
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lim.rlim_cur = STACK_LIM;
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setrlimit (RLIMIT_STACK, &lim);
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if (entry == NULL)
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{
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puts ("malloc failed, cannot test");
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exit (1);
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}
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memset (entry, 'A', STRING_SIZE);
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entry[STRING_SIZE - 1] = 0;
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ret = asprintf (&content, "%s\n%s\nnet3 %s\n",
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"net1 x0000000000Ff.077", /* legal 255.63.0.0 */
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"net2 xFF00000000.0.0.0", /* illegal */
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entry /* illegal */);
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if (ret == -1)
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{
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puts ("asprintf failed, cannot test");
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exit (1);
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}
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free (entry);
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chroot_env = support_chroot_create
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((struct support_chroot_configuration)
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{
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.networks = content
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});
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}
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static int
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do_test (void)
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{
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support_become_root ();
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if (!support_can_chroot ())
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return EXIT_UNSUPPORTED;
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__nss_configure_lookup ("networks", "files");
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xdlopen (LIBNSS_FILES_SO, RTLD_NOW);
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xchroot (chroot_env->path_chroot);
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check_netent ("net1", getnetbyname ("net1"),
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"name: net1\n"
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"net: 0xff3f0000\n");
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check_netent ("net2", getnetbyname ("net2"), "error: HOST_NOT_FOUND\n");
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support_chroot_free (chroot_env);
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return 0;
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}
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#define PREPARE prepare
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#include <support/test-driver.c>
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