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/* libguestfs
* Copyright (C) 2012 Red Hat Inc.
*
* This 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 of the License, or (at your option) any later version.
*
* This 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 this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "guestfs.h"
#include "guestfs-internal.h"
#include "guestfs-internal-actions.h"
int
guestfs__set_tmpdir (guestfs_h *g, const char *tmpdir)
{
free (g->int_tmpdir);
g->int_tmpdir = tmpdir ? safe_strdup (g, tmpdir) : NULL;
return 0;
}
/* Note this actually calculates the tmpdir, so it never returns NULL. */
char *
guestfs__get_tmpdir (guestfs_h *g)
{
const char *str;
if (g->int_tmpdir)
str = g->int_tmpdir;
else if (g->env_tmpdir)
str = g->env_tmpdir;
else
str = "/tmp";
return safe_strdup (g, str);
}
int
guestfs__set_cachedir (guestfs_h *g, const char *cachedir)
{
free (g->int_cachedir);
g->int_cachedir = cachedir ? safe_strdup (g, cachedir) : NULL;
return 0;
}
/* Note this actually calculates the cachedir, so it never returns NULL. */
char *
guestfs__get_cachedir (guestfs_h *g)
{
const char *str;
if (g->int_cachedir)
str = g->int_cachedir;
else if (g->env_tmpdir)
str = g->env_tmpdir;
else
str = "/var/tmp";
return safe_strdup (g, str);
}
/* The g->tmpdir (per-handle temporary directory) is not created when
* the handle is created. Instead we create it lazily before the
* first time it is used, or during launch.
*/
int
guestfs___lazy_make_tmpdir (guestfs_h *g)
{
if (!g->tmpdir) {
TMP_TEMPLATE_ON_STACK (g, dir_template);
g->tmpdir = safe_strdup (g, dir_template);
if (mkdtemp (g->tmpdir) == NULL) {
perrorf (g, _("%s: cannot create temporary directory"), dir_template);
return -1;
}
}
return 0;
}
/* Recursively remove a temporary directory. If removal fails, just
* return (it's a temporary directory so it'll eventually be cleaned
* up by a temp cleaner). This is done using "rm -rf" because that's
* simpler and safer.
*/
void
guestfs___recursive_remove_dir (guestfs_h *g, const char *dir)
{
struct command *cmd;
cmd = guestfs___new_command (g);
guestfs___cmd_add_arg (cmd, "rm");
guestfs___cmd_add_arg (cmd, "-rf");
guestfs___cmd_add_arg (cmd, dir);
/* Ignore failures. */
guestfs___cmd_run (cmd);
guestfs___cmd_close (cmd);
}
void
guestfs___remove_tmpdir (guestfs_h *g)
{
if (g->tmpdir)
guestfs___recursive_remove_dir (g, g->tmpdir);
}
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