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lib/device/dev-luks.c
36 строк
989 B
David Teigland
filter: remove unused EAGAIN case and flag
06 апр 2022, 20:51
06 апр 2022, 20:51
6cb0b44
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/* * Copyright (C) 2010 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include "lib/misc/lib.h" #include "lib/device/dev-type.h" #define LUKS_SIGNATURE "LUKS\xba\xbe" #define LUKS_SIGNATURE_SIZE 6 int dev_is_luks(struct cmd_context *cmd, struct device *dev, uint64_t *offset_found, int full) { char buf[LUKS_SIGNATURE_SIZE]; int ret = -1; if (offset_found) *offset_found = 0; if (!dev_read_bytes(dev, 0, LUKS_SIGNATURE_SIZE, buf)) goto_out; ret = memcmp(buf, LUKS_SIGNATURE, LUKS_SIGNATURE_SIZE) ? 0 : 1; out: return ret; }