/* $NetBSD: vgcfgbackup.c,v 1.1.1.2 2009/12/02 00:25:56 haad Exp $ */ /* * Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved. * Copyright (C) 2004-2007 Red Hat, Inc. All rights reserved. * * This file is part of LVM2. * * This copyrighted material is made available to anyone wishing to use, * modify, copy, or redistribute it subject to the terms and conditions * of the GNU Lesser General Public License v.2.1. * * You should have received a copy of the GNU Lesser General Public License * along with this program; if not, write to the Free Software Foundation, * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include "tools.h" static char *_expand_filename(const char *template, const char *vg_name, char **last_filename) { char *filename; if (security_level()) return dm_strdup(template); if (!(filename = dm_malloc(PATH_MAX))) { log_error("Failed to allocate filename."); return NULL; } if (snprintf(filename, PATH_MAX, template, vg_name) < 0) { log_error("Error processing filename template %s", template); dm_free(filename); return NULL; } if (*last_filename && !strncmp(*last_filename, filename, PATH_MAX)) { log_error("VGs must be backed up into different files. " "Use %%s in filename for VG name."); dm_free(filename); return NULL; } dm_free(*last_filename); *last_filename = filename; return filename; } static int vg_backup_single(struct cmd_context *cmd, const char *vg_name, struct volume_group *vg, void *handle) { char **last_filename = (char **)handle; char *filename; if (arg_count(cmd, file_ARG)) { if (!(filename = _expand_filename(arg_value(cmd, file_ARG), vg->name, last_filename))) { stack; return ECMD_FAILED; } if (!backup_to_file(filename, vg->cmd->cmd_line, vg)) { stack; return ECMD_FAILED; } } else { if (vg_read_error(vg) == FAILED_INCONSISTENT) { log_error("No backup taken: specify filename with -f " "to backup an inconsistent VG"); stack; return ECMD_FAILED; } /* just use the normal backup code */ backup_enable(cmd, 1); /* force a backup */ if (!backup(vg)) { stack; return ECMD_FAILED; } } log_print("Volume group \"%s\" successfully backed up.", vg_name); return ECMD_PROCESSED; } int vgcfgbackup(struct cmd_context *cmd, int argc, char **argv) { int ret; char *last_filename = NULL; init_pvmove(1); ret = process_each_vg(cmd, argc, argv, READ_ALLOW_INCONSISTENT, &last_filename, &vg_backup_single); dm_free(last_filename); init_pvmove(0); return ret; }