84 lines
2.7 KiB
C
84 lines
2.7 KiB
C
/* Setup a chroot environment for use within tests.
|
|
Copyright (C) 2017-2022 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 <stdlib.h>
|
|
#include <support/check.h>
|
|
#include <support/namespace.h>
|
|
#include <support/support.h>
|
|
#include <support/temp_file.h>
|
|
#include <support/test-driver.h>
|
|
#include <support/xunistd.h>
|
|
|
|
/* If CONTENTS is not NULL, write it to the file at DIRECTORY/RELPATH,
|
|
and store the name in *ABSPATH. If CONTENTS is NULL, store NULL in
|
|
*ABSPATH. */
|
|
static void
|
|
write_file (const char *directory, const char *relpath, const char *contents,
|
|
char **abspath)
|
|
{
|
|
if (contents != NULL)
|
|
{
|
|
*abspath = xasprintf ("%s/%s", directory, relpath);
|
|
add_temp_file (*abspath);
|
|
support_write_file_string (*abspath, contents);
|
|
}
|
|
else
|
|
*abspath = NULL;
|
|
}
|
|
|
|
struct support_chroot *
|
|
support_chroot_create (struct support_chroot_configuration conf)
|
|
{
|
|
struct support_chroot *chroot = xmalloc (sizeof (*chroot));
|
|
chroot->path_chroot = support_create_temp_directory ("tst-resolv-res_init-");
|
|
|
|
/* Create the /etc directory in the chroot environment. */
|
|
char *path_etc = xasprintf ("%s/etc", chroot->path_chroot);
|
|
xmkdir (path_etc, 0777);
|
|
add_temp_file (path_etc);
|
|
|
|
write_file (path_etc, "resolv.conf", conf.resolv_conf,
|
|
&chroot->path_resolv_conf);
|
|
write_file (path_etc, "hosts", conf.hosts, &chroot->path_hosts);
|
|
write_file (path_etc, "host.conf", conf.host_conf, &chroot->path_host_conf);
|
|
write_file (path_etc, "aliases", conf.aliases, &chroot->path_aliases);
|
|
|
|
free (path_etc);
|
|
|
|
/* valgrind needs a temporary directory in the chroot. */
|
|
{
|
|
char *path_tmp = xasprintf ("%s/tmp", chroot->path_chroot);
|
|
xmkdir (path_tmp, 0777);
|
|
add_temp_file (path_tmp);
|
|
free (path_tmp);
|
|
}
|
|
|
|
return chroot;
|
|
}
|
|
|
|
void
|
|
support_chroot_free (struct support_chroot *chroot)
|
|
{
|
|
free (chroot->path_chroot);
|
|
free (chroot->path_resolv_conf);
|
|
free (chroot->path_hosts);
|
|
free (chroot->path_host_conf);
|
|
free (chroot->path_aliases);
|
|
free (chroot);
|
|
}
|