1/* vi: set sw=4 ts=4: */
2/*
3 * Utility routines.
4 *
5 * Copyright (C) 1999-2001 Erik Andersen <andersee@debian.org>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 */
21
22#include <unistd.h>
23#include <string.h>
24#include <errno.h>
25#include "libbb.h"
26
27
28extern int copyfd(int fd1, int fd2)
29{
30	char buf[8192];
31	ssize_t nread, nwrote;
32
33	while (1) {
34		nread = safe_read(fd1, buf, sizeof(buf));
35		if (nread == 0)
36			break;
37		if (nread == -1) {
38			perror_msg("read");
39			return -1;
40		}
41
42		nwrote = full_write(fd2, buf, nread);
43		if (nwrote == -1) {
44			perror_msg("write");
45			return -1;
46		}
47	}
48
49	return 0;
50}
51
52/* END CODE */
53/*
54Local Variables:
55c-file-style: "linux"
56c-basic-offset: 4
57tab-width: 4
58End:
59*/
60