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4b42ac47 MT |
1 | /*- |
2 | * Copyright (c) 1990 The Regents of the University of California. | |
3 | * All rights reserved. | |
4 | * | |
5 | * %sccs.include.redist.c% | |
6 | */ | |
7 | ||
8 | #if defined(LIBC_SCCS) && !defined(lint) | |
3bf348a4 | 9 | static char sccsid[] = "@(#)login_tty.c 1.2 (Berkeley) %G%"; |
4b42ac47 MT |
10 | #endif /* LIBC_SCCS and not lint */ |
11 | ||
12 | #include <sys/param.h> | |
13 | #include <sys/ioctl.h> | |
14 | ||
15 | login_tty(fd) | |
16 | int fd; | |
17 | { | |
18 | (void) setsid(); | |
81a32156 MT |
19 | if (ioctl(fd, TIOCSCTTY, (char *)NULL) == -1) |
20 | return (-1); | |
4b42ac47 MT |
21 | (void) dup2(fd, 0); |
22 | (void) dup2(fd, 1); | |
23 | (void) dup2(fd, 2); | |
81a32156 MT |
24 | if (fd > 2) |
25 | (void) close(fd); | |
26 | return (0); | |
4b42ac47 | 27 | } |