mirror of git://git.gnupg.org/gnupg.git
116 lines
2.3 KiB
C
116 lines
2.3 KiB
C
/* dotlock.c - A utility to handle dotlock by command line.
|
|
* Copyright (C) 2023 g10 Code GmbH
|
|
*
|
|
* This file is part of GnuPG.
|
|
*
|
|
* GnuPG 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 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* GnuPG 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, see <https://www.gnu.org/licenses/>.
|
|
* SPDX-License-Identifier: GPL-3.0-or-later
|
|
*/
|
|
|
|
#include <config.h>
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <stdarg.h>
|
|
#include <string.h>
|
|
#include <errno.h>
|
|
#include <unistd.h>
|
|
|
|
#include <gpg-error.h>
|
|
#include "../common/util.h"
|
|
#include "../common/stringhelp.h"
|
|
#include "../common/dotlock.h"
|
|
|
|
static void
|
|
lock (const char *filename)
|
|
{
|
|
dotlock_t h;
|
|
unsigned int flags = DOTLOCK_LOCK_BY_PARENT;
|
|
|
|
h = dotlock_create (filename, flags);
|
|
if (!h)
|
|
{
|
|
perror ("error creating lock file");
|
|
exit (1);
|
|
}
|
|
|
|
if (dotlock_take (h, 0))
|
|
{
|
|
perror ("error taking lock");
|
|
dotlock_destroy (h);
|
|
exit (1);
|
|
}
|
|
|
|
dotlock_destroy (h);
|
|
}
|
|
|
|
static void
|
|
unlock (const char *filename)
|
|
{
|
|
dotlock_t h;
|
|
unsigned int flags = (DOTLOCK_LOCK_BY_PARENT | DOTLOCK_LOCKED);
|
|
|
|
h = dotlock_create (filename, flags);
|
|
if (!h)
|
|
{
|
|
perror ("no lock file");
|
|
exit (1);
|
|
}
|
|
|
|
dotlock_release (h);
|
|
dotlock_destroy (h);
|
|
}
|
|
|
|
|
|
int
|
|
main (int argc, const char *argv[])
|
|
{
|
|
const char *name;
|
|
const char *fname;
|
|
char *filename;
|
|
int op_unlock = 0;
|
|
|
|
if (argc >= 2 && !strcmp (argv[1], "-u"))
|
|
{
|
|
op_unlock = 1;
|
|
argc--;
|
|
argv++;
|
|
}
|
|
|
|
if (argc != 2)
|
|
{
|
|
printf ("Usage: %s [-u] NAME\n", argv[0]);
|
|
exit (1);
|
|
}
|
|
|
|
name = argv[1];
|
|
|
|
if (!strcmp (name, "pubring.db"))
|
|
/* Keybox pubring.db lock */
|
|
fname = "public-keys.d/pubring.db";
|
|
else
|
|
/* Other locks. */
|
|
fname = name;
|
|
|
|
filename = make_absfilename (gnupg_homedir (), fname, NULL);
|
|
|
|
if (op_unlock)
|
|
unlock (filename);
|
|
else
|
|
lock (filename);
|
|
|
|
xfree (filename);
|
|
return 0;
|
|
}
|