84 lines
2.6 KiB
C
84 lines
2.6 KiB
C
/*
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* Copyright (C) 2017 Colin Walters <walters@verbum.org>
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*
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* SPDX-License-Identifier: LGPL-2.0+
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <err.h>
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#include <unistd.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <stdlib.h>
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#include <libglnx.h>
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#include "ostree-cmd-private.h"
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#include "ostree-mount-util.h"
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static const char *arg_dest = "/tmp";
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static const char *arg_dest_late = "/tmp";
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/* This program is a simple stub that calls the implementation that
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* lives inside libostree.
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*/
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int
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main(int argc, char *argv[])
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{
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/* We conflict with the magic ostree-mount-deployment-var file for ostree-prepare-root */
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{ struct stat stbuf;
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if (fstatat (AT_FDCWD, INITRAMFS_MOUNT_VAR, &stbuf, 0) == 0)
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{
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if (unlinkat (AT_FDCWD, INITRAMFS_MOUNT_VAR, 0) < 0)
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err (EXIT_FAILURE, "Can't unlink " INITRAMFS_MOUNT_VAR);
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exit (EXIT_SUCCESS);
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}
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}
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if (argc > 1 && argc != 4)
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errx (EXIT_FAILURE, "This program takes three or no arguments");
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if (argc > 1)
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arg_dest = argv[1];
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if (argc > 3)
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arg_dest_late = argv[3];
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/* If we're installed on a system which isn't using OSTree for boot (e.g.
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* package installed as a dependency for flatpak or whatever), silently
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* exit so that we don't error, but at the same time work where switchroot
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* is PID 1 (and so hasn't created /run/ostree-booted).
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*/
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char *ostree_cmdline = read_proc_cmdline_ostree ();
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if (!ostree_cmdline)
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exit (EXIT_SUCCESS);
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/* See comments in ostree-prepare-root.c for this.
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*
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* It's a lot easier for various bits of userspace to check for
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* a file versus parsing the kernel cmdline. So let's ensure
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* the stamp file is created here too.
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*/
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touch_run_ostree ();
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{ g_autoptr(GError) local_error = NULL;
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if (!ostree_cmd__private__()->ostree_system_generator (ostree_cmdline, arg_dest, NULL, arg_dest_late, &local_error))
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errx (EXIT_FAILURE, "%s", local_error->message);
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}
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exit (EXIT_SUCCESS);
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}
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