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110 lines
3.3 KiB
C
110 lines
3.3 KiB
C
/* Parse /etc/hosts in multi mode with a trailing long line (bug 21915).
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Copyright (C) 2017-2023 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 <dlfcn.h>
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#include <errno.h>
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#include <gnu/lib-names.h>
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#include <netdb.h>
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#include <nss.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/xunistd.h>
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struct support_chroot *chroot_env;
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#define X10 "XXXXXXXXXX"
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#define X100 X10 X10 X10 X10 X10 X10 X10 X10 X10 X10
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#define X1000 X100 X100 X100 X100 X100 X100 X100 X100 X100 X100
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static void
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prepare (int argc, char **argv)
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{
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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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.resolv_conf = "",
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.hosts =
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"127.0.0.1 localhost localhost.localdomain\n"
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"::1 localhost localhost.localdomain\n"
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"192.0.2.1 example.com\n"
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"#" X1000 X100 "\n",
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.host_conf = "multi on\n",
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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 ("hosts", "files");
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if (dlopen (LIBNSS_FILES_SO, RTLD_LAZY) == NULL)
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FAIL_EXIT1 ("could not load " LIBNSS_DNS_SO ": %s", dlerror ());
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xchroot (chroot_env->path_chroot);
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errno = ERANGE;
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h_errno = NETDB_INTERNAL;
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check_hostent ("gethostbyname example.com",
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gethostbyname ("example.com"),
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"name: example.com\n"
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"address: 192.0.2.1\n");
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errno = ERANGE;
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h_errno = NETDB_INTERNAL;
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check_hostent ("gethostbyname2 AF_INET example.com",
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gethostbyname2 ("example.com", AF_INET),
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"name: example.com\n"
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"address: 192.0.2.1\n");
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{
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struct addrinfo hints =
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{
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.ai_family = AF_UNSPEC,
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.ai_socktype = SOCK_STREAM,
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.ai_protocol = IPPROTO_TCP,
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};
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errno = ERANGE;
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h_errno = NETDB_INTERNAL;
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struct addrinfo *ai;
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int ret = getaddrinfo ("example.com", "80", &hints, &ai);
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check_addrinfo ("example.com AF_UNSPEC", ai, ret,
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"address: STREAM/TCP 192.0.2.1 80\n");
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if (ret == 0)
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freeaddrinfo (ai);
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hints.ai_family = AF_INET;
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errno = ERANGE;
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h_errno = NETDB_INTERNAL;
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ret = getaddrinfo ("example.com", "80", &hints, &ai);
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check_addrinfo ("example.com AF_INET", ai, ret,
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"address: STREAM/TCP 192.0.2.1 80\n");
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if (ret == 0)
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freeaddrinfo (ai);
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}
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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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