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/* libguestfs - the guestfsd daemon
* Copyright (C) 2009 Red Hat Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include <dirent.h>
#include <sys/stat.h>
#include "daemon.h"
#include "actions.h"
#define MAX_ARGS 16
static int
mkfs (const char *fstype, const char *device,
const char **extra, size_t nr_extra)
{
const char *argv[MAX_ARGS];
size_t i = 0, j;
int r;
char *err;
argv[i++] = "/sbin/mkfs";
argv[i++] = "-t";
argv[i++] = fstype;
/* mkfs.ntfs requires the -Q argument otherwise it writes zeroes
* to every block and does bad block detection, neither of which
* are useful behaviour for virtual devices.
*/
if (STREQ (fstype, "ntfs"))
argv[i++] = "-Q";
/* mkfs.reiserfs produces annoying interactive prompts unless you
* tell it to be quiet.
*/
if (STREQ (fstype, "reiserfs"))
argv[i++] = "-f";
/* Same for JFS. */
if (STREQ (fstype, "jfs"))
argv[i++] = "-f";
/* For GFS, GFS2, assume a single node. */
if (STREQ (fstype, "gfs") || STREQ (fstype, "gfs2")) {
argv[i++] = "-p";
argv[i++] = "lock_nolock";
/* The man page says this is default, but it doesn't seem to be: */
argv[i++] = "-j";
argv[i++] = "1";
/* Don't ask questions: */
argv[i++] = "-O";
}
for (j = 0; j < nr_extra; ++j)
argv[i++] = extra[j];
argv[i++] = device;
argv[i++] = NULL;
if (i > MAX_ARGS)
abort ();
r = commandv (NULL, &err, argv);
if (r == -1) {
reply_with_error ("%s: %s: %s", fstype, device, err);
free (err);
return -1;
}
free (err);
return 0;
}
int
do_mkfs (const char *fstype, const char *device)
{
return mkfs (fstype, device, NULL, 0);
}
int
do_mkfs_b (const char *fstype, int blocksize, const char *device)
{
const char *extra[2];
char blocksize_s[32];
snprintf (blocksize_s, sizeof blocksize_s, "%d", blocksize);
extra[0] = "-b";
extra[1] = blocksize_s;
return mkfs (fstype, device, extra, 2);
}
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