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984263bc MD |
1 | /*- |
2 | * Copyright (c) 1990, 1993 | |
3 | * The Regents of the University of California. All rights reserved. | |
4 | * | |
5 | * Redistribution and use in source and binary forms, with or without | |
6 | * modification, are permitted provided that the following conditions | |
7 | * are met: | |
8 | * 1. Redistributions of source code must retain the above copyright | |
9 | * notice, this list of conditions and the following disclaimer. | |
10 | * 2. Redistributions in binary form must reproduce the above copyright | |
11 | * notice, this list of conditions and the following disclaimer in the | |
12 | * documentation and/or other materials provided with the distribution. | |
dc71b7ab | 13 | * 3. Neither the name of the University nor the names of its contributors |
984263bc MD |
14 | * may be used to endorse or promote products derived from this software |
15 | * without specific prior written permission. | |
16 | * | |
17 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
18 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
19 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
20 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
21 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
22 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
23 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
24 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
25 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
26 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
27 | * SUCH DAMAGE. | |
1de703da MD |
28 | * |
29 | * @(#)login_tty.c 8.1 (Berkeley) 6/4/93 | |
30 | * $FreeBSD: src/lib/libutil/login_tty.c,v 1.6 1999/08/28 00:05:49 peter Exp $ | |
984263bc MD |
31 | */ |
32 | ||
984263bc MD |
33 | #include <sys/param.h> |
34 | #include <sys/ioctl.h> | |
35 | ||
d316f7c9 | 36 | #include <libutil.h> |
984263bc | 37 | #include <stdlib.h> |
ca008f5e CP |
38 | #include <unistd.h> |
39 | ||
984263bc | 40 | int |
1588fa1f | 41 | login_tty(int fd) |
984263bc MD |
42 | { |
43 | (void) setsid(); | |
2038fb68 | 44 | if (ioctl(fd, TIOCSCTTY, NULL) == -1) |
984263bc MD |
45 | return (-1); |
46 | (void) dup2(fd, 0); | |
47 | (void) dup2(fd, 1); | |
48 | (void) dup2(fd, 2); | |
49 | if (fd > 2) | |
50 | (void) close(fd); | |
51 | return (0); | |
52 | } |