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e9ce8d39 A |
1 | .\" Copyright (c) 1991, 1993 |
2 | .\" The Regents of the University of California. All rights reserved. | |
3 | .\" | |
4 | .\" Redistribution and use in source and binary forms, with or without | |
5 | .\" modification, are permitted provided that the following conditions | |
6 | .\" are met: | |
7 | .\" 1. Redistributions of source code must retain the above copyright | |
8 | .\" notice, this list of conditions and the following disclaimer. | |
9 | .\" 2. Redistributions in binary form must reproduce the above copyright | |
10 | .\" notice, this list of conditions and the following disclaimer in the | |
11 | .\" documentation and/or other materials provided with the distribution. | |
12 | .\" 3. All advertising materials mentioning features or use of this software | |
13 | .\" must display the following acknowledgement: | |
14 | .\" This product includes software developed by the University of | |
15 | .\" California, Berkeley and its contributors. | |
16 | .\" 4. Neither the name of the University nor the names of its contributors | |
17 | .\" may be used to endorse or promote products derived from this software | |
18 | .\" without specific prior written permission. | |
19 | .\" | |
20 | .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
21 | .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
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5b2abdfb A |
32 | .\" @(#)tcsetpgrp.3 8.1 (Berkeley) 6/4/93 |
33 | .\" $FreeBSD: src/lib/libc/gen/tcsetpgrp.3,v 1.9 2001/10/01 16:08:51 ru Exp $ | |
e9ce8d39 | 34 | .\" |
5b2abdfb A |
35 | .Dd June 4, 1993 |
36 | .Dt TCSETPGRP 3 | |
e9ce8d39 A |
37 | .Os |
38 | .Sh NAME | |
5b2abdfb A |
39 | .Nm tcsetpgrp |
40 | .Nd set foreground process group ID | |
e9ce8d39 A |
41 | .Sh LIBRARY |
42 | .Lb libc | |
43 | .Sh SYNOPSIS | |
5b2abdfb A |
44 | .In sys/types.h |
45 | .In unistd.h | |
e9ce8d39 | 46 | .Ft int |
5b2abdfb | 47 | .Fn tcsetpgrp "int fd" "pid_t pgrp_id" |
e9ce8d39 | 48 | .Sh DESCRIPTION |
5b2abdfb A |
49 | If the process has a controlling terminal, the |
50 | .Fn tcsetpgrp | |
51 | function sets the foreground process group ID associated with the | |
52 | terminal device to | |
53 | .Fa pgrp_id . | |
54 | The terminal device associated with | |
55 | .Fa fd | |
56 | must be the controlling terminal of the calling process and the | |
57 | controlling terminal must be currently associated with the session | |
58 | of the calling process. | |
59 | The value of | |
60 | .Fa pgrp_id | |
61 | must be the same as the process group ID of a process in the same | |
62 | session as the calling process. | |
e9ce8d39 | 63 | .Sh RETURN VALUES |
5b2abdfb | 64 | .Rv -std tcsetpgrp |
e9ce8d39 | 65 | .Sh ERRORS |
5b2abdfb A |
66 | The |
67 | .Fn tcsetpgrp | |
68 | function will fail if: | |
e9ce8d39 | 69 | .Bl -tag -width Er |
5b2abdfb A |
70 | .It Bq Er EBADF |
71 | The | |
72 | .Fa fd | |
73 | argument is not a valid file descriptor. | |
e9ce8d39 | 74 | .It Bq Er EINVAL |
5b2abdfb A |
75 | An invalid value of |
76 | .Fa pgrp_id | |
77 | was specified. | |
78 | .It Bq Er ENOTTY | |
79 | The calling process does not have a controlling terminal, or the file | |
80 | represented by | |
81 | .Fa fd | |
82 | is not the controlling terminal, or the controlling terminal is no | |
83 | longer associated with the session of the calling process. | |
84 | .It Bq Er EPERM | |
85 | The | |
86 | .Fa pgrp_id | |
87 | argument does not match the process group ID of a process in the same | |
88 | session as the calling process. | |
89 | .El | |
e9ce8d39 | 90 | .Sh SEE ALSO |
5b2abdfb A |
91 | .Xr setpgid 2 , |
92 | .Xr setsid 2 , | |
93 | .Xr tcgetpgrp 3 | |
94 | .Sh STANDARDS | |
e9ce8d39 | 95 | The |
5b2abdfb A |
96 | .Fn tcsetpgrp |
97 | function is expected to be compliant with the | |
98 | .St -p1003.1-88 | |
99 | specification. |