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mirror of git://sourceware.org/git/lvm2.git synced 2024-12-21 13:34:40 +03:00
lvm2/tools/pvresize.c
Zdenek Kabelac 428b9fcd87 cleanup: validate pointers
Mostly on almost impossible to happen paths - but stay safe.
2014-11-13 17:49:42 +01:00

76 lines
1.9 KiB
C

/*
* Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
* Copyright (C) 2004-2005 Red Hat, Inc. All rights reserved.
* Copyright (C) 2005 Zak Kipling. 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"
struct pvresize_params {
uint64_t new_size;
unsigned done;
unsigned total;
};
static int _pvresize_single(struct cmd_context *cmd,
struct volume_group *vg,
struct physical_volume *pv,
void *handle)
{
struct pvresize_params *params = (struct pvresize_params *) handle;
if (!params) {
log_error(INTERNAL_ERROR "Invalid resize params.");
return ECMD_FAILED;
}
params->total++;
if (!pv_resize_single(cmd, vg, pv, params->new_size))
return_ECMD_FAILED;
params->done++;
return ECMD_PROCESSED;
}
int pvresize(struct cmd_context *cmd, int argc, char **argv)
{
struct pvresize_params params;
int ret;
if (!argc) {
log_error("Please supply physical volume(s)");
return EINVALID_CMD_LINE;
}
if (arg_sign_value(cmd, physicalvolumesize_ARG, SIGN_NONE) == SIGN_MINUS) {
log_error("Physical volume size may not be negative");
return EINVALID_CMD_LINE;
}
params.new_size = arg_uint64_value(cmd, physicalvolumesize_ARG,
UINT64_C(0));
params.done = 0;
params.total = 0;
ret = process_each_pv(cmd, argc, argv, NULL, READ_FOR_UPDATE, &params,
_pvresize_single);
log_print_unless_silent("%d physical volume(s) resized / %d physical volume(s) "
"not resized", params.done, params.total - params.done);
return ret;
}