Annotation of src/lib/libc/termios/tcgetpgrp.3, Revision 1.11
1.11 ! agc 1: .\" $NetBSD: tcgetpgrp.3,v 1.10 2003/04/16 13:34:58 wiz Exp $
1.1 jtc 2: .\"
1.5 perry 3: .\" Copyright (c) 1991, 1993
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1.5 perry 30: .\" @(#)tcgetpgrp.3 8.1 (Berkeley) 6/4/93
1.1 jtc 31: .\"
1.6 perry 32: .Dd June 4, 1993
1.1 jtc 33: .Dt TCGETPGRP 3
34: .Os
35: .Sh NAME
36: .Nm tcgetpgrp
37: .Nd get foreground process group ID
1.7 perry 38: .Sh LIBRARY
39: .Lb libc
1.1 jtc 40: .Sh SYNOPSIS
1.10 wiz 41: .In unistd.h
1.1 jtc 42: .Ft pid_t
43: .Fn tcgetpgrp "int fd"
44: .Sh DESCRIPTION
45: The
46: .Nm tcgetpgrp
47: function returns the value of the process group ID of the foreground
48: process group associated with the terminal device.
49: If there is no foreground process group,
50: .Nm tcgetpgrp
51: returns an invalid process ID.
52: .Sh ERRORS
53: If an error occurs,
54: .Nm tcgetpgrp
55: returns -1 and the global variable
56: .Va errno
57: is set to indicate the error, as follows:
58: .Bl -tag -width Er
59: .It Bq Er EBADF
60: The
61: .Fa fd
62: argument is not a valid file descriptor.
63: .It Bq Er ENOTTY
64: The calling process does not have a controlling terminal or the
65: underlying terminal device represented by
66: .Fa fd
67: is not the controlling terminal.
68: .El
69: .Sh SEE ALSO
1.4 mikel 70: .Xr setpgid 2 ,
1.1 jtc 71: .Xr setsid 2 ,
72: .Xr tcsetpgrp 3
73: .Sh STANDARDS
74: The
75: .Nm tcgetpgrp
1.3 kleink 76: function conforms to
77: .St -p1003.1-90 .
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