[thirdparty/xfsprogs-dev.git] / io / truncate.c

// SPDX-License-Identifier: GPL-2.0
/*
 * Copyright (c) 2003-2005 Silicon Graphics, Inc.
 * All Rights Reserved.
 */

#include "command.h"
#include "input.h"
#include "init.h"
#include "io.h"

static cmdinfo_t truncate_cmd;

static int
truncate_f(
	int		argc,
	char		**argv)
{
	off_t		offset;
	size_t		blocksize, sectsize;

	init_cvtnum(&blocksize, &sectsize);
	offset = cvtnum(blocksize, sectsize, argv[1]);
	if (offset < 0) {
		printf(_("non-numeric truncate argument -- %s\n"), argv[1]);
		exitcode = 1;
		return 0;
	}

	if (ftruncate(file->fd, offset) < 0) {
		perror("ftruncate");
		exitcode = 1;
		return 0;
	}
	return 0;
}

void
truncate_init(void)
{
	truncate_cmd.name = "truncate";
	truncate_cmd.altname = "t";
	truncate_cmd.cfunc = truncate_f;
	truncate_cmd.argmin = 1;
	truncate_cmd.argmax = 1;
	truncate_cmd.flags = CMD_NOMAP_OK | CMD_FOREIGN_OK;
	truncate_cmd.args = _("off");
	truncate_cmd.oneline =
		_("truncates the current file at the given offset");

	add_command(&truncate_cmd);
}
Commit	Line	Data
959ef981	1	// SPDX-License-Identifier: GPL-2.0
e246ba5f	2	/*
da23017d NS	3	* Copyright (c) 2003-2005 Silicon Graphics, Inc.
da23017d NS	4	* All Rights Reserved.
e246ba5f NS	5	*/
e246ba5f NS	6
6b803e5a CH	7	#include "command.h"
6b803e5a CH	8	#include "input.h"
e246ba5f	9	#include "init.h"
48c46ee3	10	#include "io.h"
e246ba5f NS	11
	12	static cmdinfo_t truncate_cmd;
	13
	14	static int
	15	truncate_f(
48c46ee3 NS	16	int argc,
48c46ee3 NS	17	char **argv)
e246ba5f	18	{
9e726740	19	off_t offset;
2c2f6d79	20	size_t blocksize, sectsize;
e246ba5f	21
48c46ee3	22	init_cvtnum(&blocksize, &sectsize);
f72d20ad	23	offset = cvtnum(blocksize, sectsize, argv[1]);
638473d8	24	if (offset < 0) {
e246ba5f	25	printf(_("non-numeric truncate argument -- %s\n"), argv[1]);
9e1595e6	26	exitcode = 1;
e246ba5f NS	27	return 0;
	28	}
	29
dde67673	30	if (ftruncate(file->fd, offset) < 0) {
e246ba5f	31	perror("ftruncate");
9e1595e6	32	exitcode = 1;
e246ba5f NS	33	return 0;
	34	}
	35	return 0;
	36	}
	37
	38	void
	39	truncate_init(void)
	40	{
ad765595 AM	41	truncate_cmd.name = "truncate";
ad765595 AM	42	truncate_cmd.altname = "t";
e246ba5f NS	43	truncate_cmd.cfunc = truncate_f;
	44	truncate_cmd.argmin = 1;
	45	truncate_cmd.argmax = 1;
48c46ee3	46	truncate_cmd.flags = CMD_NOMAP_OK \| CMD_FOREIGN_OK;
e246ba5f NS	47	truncate_cmd.args = _("off");
	48	truncate_cmd.oneline =
	49	_("truncates the current file at the given offset");
	50
	51	add_command(&truncate_cmd);
	52	}