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d4165eed | 1 | /* Setup a chroot environment for use within tests. |
d614a753 | 2 | Copyright (C) 2017-2020 Free Software Foundation, Inc. |
d4165eed FW |
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 | |
7 | License as published by the Free Software Foundation; either | |
8 | version 2.1 of the 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; if not, see | |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
d4165eed FW |
18 | |
19 | #include <stdlib.h> | |
20 | #include <support/check.h> | |
21 | #include <support/namespace.h> | |
22 | #include <support/support.h> | |
23 | #include <support/temp_file.h> | |
24 | #include <support/test-driver.h> | |
25 | #include <support/xunistd.h> | |
26 | ||
65329bd2 FW |
27 | /* If CONTENTS is not NULL, write it to the file at DIRECTORY/RELPATH, |
28 | and store the name in *ABSPATH. If CONTENTS is NULL, store NULL in | |
29 | *ABSPATH. */ | |
30 | static void | |
31 | write_file (const char *directory, const char *relpath, const char *contents, | |
32 | char **abspath) | |
33 | { | |
34 | if (contents != NULL) | |
35 | { | |
36 | *abspath = xasprintf ("%s/%s", directory, relpath); | |
37 | add_temp_file (*abspath); | |
38 | support_write_file_string (*abspath, contents); | |
39 | } | |
40 | else | |
41 | *abspath = NULL; | |
42 | } | |
43 | ||
d4165eed FW |
44 | struct support_chroot * |
45 | support_chroot_create (struct support_chroot_configuration conf) | |
46 | { | |
47 | struct support_chroot *chroot = xmalloc (sizeof (*chroot)); | |
8adfb0ee | 48 | chroot->path_chroot = support_create_temp_directory ("tst-resolv-res_init-"); |
d4165eed FW |
49 | |
50 | /* Create the /etc directory in the chroot environment. */ | |
51 | char *path_etc = xasprintf ("%s/etc", chroot->path_chroot); | |
52 | xmkdir (path_etc, 0777); | |
53 | add_temp_file (path_etc); | |
54 | ||
65329bd2 FW |
55 | write_file (path_etc, "resolv.conf", conf.resolv_conf, |
56 | &chroot->path_resolv_conf); | |
57 | write_file (path_etc, "hosts", conf.hosts, &chroot->path_hosts); | |
58 | write_file (path_etc, "host.conf", conf.host_conf, &chroot->path_host_conf); | |
2bac7daa | 59 | write_file (path_etc, "aliases", conf.aliases, &chroot->path_aliases); |
d4165eed FW |
60 | |
61 | free (path_etc); | |
62 | ||
63 | /* valgrind needs a temporary directory in the chroot. */ | |
64 | { | |
65 | char *path_tmp = xasprintf ("%s/tmp", chroot->path_chroot); | |
66 | xmkdir (path_tmp, 0777); | |
67 | add_temp_file (path_tmp); | |
68 | free (path_tmp); | |
69 | } | |
70 | ||
71 | return chroot; | |
72 | } | |
73 | ||
74 | void | |
75 | support_chroot_free (struct support_chroot *chroot) | |
76 | { | |
77 | free (chroot->path_chroot); | |
78 | free (chroot->path_resolv_conf); | |
65329bd2 FW |
79 | free (chroot->path_hosts); |
80 | free (chroot->path_host_conf); | |
2bac7daa | 81 | free (chroot->path_aliases); |
d4165eed FW |
82 | free (chroot); |
83 | } |