1/* vi: set sw=4 ts=4: */
2/*
3 * Mini tee implementation for busybox
4 *
5 * Copyright (C) 1999,2000,2001 by Lineo, inc.
6 * Written by Matt Kraai <kraai@alumni.carnegiemellon.edu>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 *
22 */
23
24#include "busybox.h"
25#include <getopt.h>
26#include <stdio.h>
27
28int
29tee_main(int argc, char **argv)
30{
31	char *mode = "w";
32	int c, i, status = 0, nfiles = 0;
33	FILE **files;
34
35	while ((c = getopt(argc, argv, "a")) != EOF) {
36		switch (c) {
37		case 'a':
38			mode = "a";
39			break;
40		default:
41			show_usage();
42		}
43	}
44
45	files = (FILE **)xmalloc(sizeof(FILE *) * (argc - optind + 1));
46	files[nfiles++] = stdout;
47	while (optind < argc) {
48		if ((files[nfiles++] = fopen(argv[optind++], mode)) == NULL) {
49			nfiles--;
50			perror_msg("%s", argv[optind-1]);
51			status = 1;
52		}
53	}
54
55	while ((c = getchar()) != EOF)
56		for (i = 0; i < nfiles; i++)
57			putc(c, files[i]);
58
59	return status;
60}
61
62/*
63Local Variables:
64c-file-style: "linux"
65c-basic-offset: 4
66tab-width: 4
67End:
68*/
69