Retro68/hfsutils/hformat.c

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2012-03-29 08:28:43 +00:00
/*
* hfsutils - tools for reading and writing Macintosh HFS volumes
* Copyright (C) 1996-1998 Robert Leslie
*
* 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.
*
* $Id: hformat.c,v 1.9 1998/11/02 22:08:31 rob Exp $
*/
# ifdef HAVE_CONFIG_H
# include "config.h"
# endif
# ifdef HAVE_UNISTD_H
# include <unistd.h>
# endif
# include <stdio.h>
# include <stdlib.h>
# include <string.h>
# include "hfs.h"
# include "hcwd.h"
# include "hfsutil.h"
# include "suid.h"
# include "hformat.h"
# define O_FORCE 0x01
extern char *optarg;
extern int optind;
/*
* NAME: usage()
* DESCRIPTION: display usage message
*/
static
void usage(void)
{
fprintf(stderr, "Usage: %s [-f] [-l label] path [partition-no]\n", argv0);
}
/*
* NAME: do_format()
* DESCRIPTION: call hfs_format() with necessary privileges
*/
static
hfsvol *do_format(const char *path, int partno, int mode, const char *vname)
{
hfsvol *vol = 0;
suid_enable();
if (hfs_format(path, partno, mode, vname, 0, 0) != -1)
vol = hfs_mount(path, partno, HFS_MODE_ANY);
suid_disable();
return vol;
}
/*
* NAME: hformat->main()
* DESCRIPTION: implement hformat command
*/
int hformat_main(int argc, char *argv[])
{
const char *vname;
char *path = 0;
hfsvol *vol;
hfsvolent ent;
int nparts, partno, options = 0, result = 0;
vname = "Untitled";
while (1)
{
int opt;
opt = getopt(argc, argv, "fl:");
if (opt == EOF)
break;
switch (opt)
{
case '?':
usage();
goto fail;
case 'f':
options |= O_FORCE;
break;
case 'l':
vname = optarg;
break;
}
}
if (argc - optind < 1 || argc - optind > 2)
{
usage();
goto fail;
}
path = hfsutil_abspath(argv[optind]);
if (path == 0)
{
fprintf(stderr, "%s: not enough memory\n", argv0);
goto fail;
}
suid_enable();
nparts = hfs_nparts(path);
suid_disable();
if (argc - optind == 2)
{
partno = atoi(argv[optind + 1]);
if (nparts != -1 && partno == 0)
{
if (options & O_FORCE)
{
fprintf(stderr,
"%s: warning: erasing partition information\n", argv0);
}
else
{
fprintf(stderr, "%s: medium is partitioned; "
"select partition > 0 or use -f\n", argv0);
goto fail;
}
}
}
else
{
if (nparts > 1)
{
fprintf(stderr,
"%s: must specify partition number (%d available)\n",
argv0, nparts);
goto fail;
}
else if (nparts == -1)
partno = 0;
else
partno = 1;
}
vol = do_format(path, partno, 0, vname);
if (vol == 0)
{
hfsutil_perror(path);
goto fail;
}
hfs_vstat(vol, &ent);
hfsutil_pinfo(&ent);
if (hcwd_mounted(ent.name, ent.crdate, path, partno) == -1)
{
perror("Failed to record mount");
result = 1;
}
hfsutil_unmount(vol, &result);
free(path);
return result;
fail:
if (path)
free(path);
return 1;
}