1/* vi: set sw=4 ts=4: */
2/*
3 * Utility routines.
4 *
5 * Copyright (C) tons of folks.  Tracking down who wrote what
6 * isn't something I'm going to worry about...  If you wrote something
7 * here, please feel free to acknowledge your work.
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 *
23 * Based in part on code from sash, Copyright (c) 1999 by David I. Bell
24 * Permission has been granted to redistribute this code under the GPL.
25 *
26 */
27
28#include <stdio.h>
29#include <unistd.h>
30#include "libbb.h"
31
32/*
33 * Write all of the supplied buffer out to a file.
34 * This does multiple writes as necessary.
35 * Returns the amount written, or -1 on an error.
36 */
37int full_write(int fd, const char *buf, int len)
38{
39	int cc;
40	int total;
41
42	total = 0;
43
44	while (len > 0) {
45		cc = write(fd, buf, len);
46
47		if (cc < 0)
48			return -1;
49
50		buf += cc;
51		total += cc;
52		len -= cc;
53	}
54
55	return total;
56}
57
58
59/* END CODE */
60/*
61Local Variables:
62c-file-style: "linux"
63c-basic-offset: 4
64tab-width: 4
65End:
66*/
67