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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-15 19:40:15 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-15 19:40:15 +0000 |
commit | 399644e47874bff147afb19c89228901ac39340e (patch) | |
tree | 1c4c0b733f4c16b5783b41bebb19194a9ef62ad1 /man3/tcgetsid.3 | |
parent | Initial commit. (diff) | |
download | manpages-399644e47874bff147afb19c89228901ac39340e.tar.xz manpages-399644e47874bff147afb19c89228901ac39340e.zip |
Adding upstream version 6.05.01.upstream/6.05.01
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | man3/tcgetsid.3 | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/man3/tcgetsid.3 b/man3/tcgetsid.3 new file mode 100644 index 0000000..4fb349c --- /dev/null +++ b/man3/tcgetsid.3 @@ -0,0 +1,74 @@ +'\" t +.\" Copyright (C) 2002 Andries Brouwer <aeb@cwi.nl> +.\" +.\" SPDX-License-Identifier: Linux-man-pages-copyleft +.\" +.TH tcgetsid 3 2023-07-20 "Linux man-pages 6.05.01" +.SH NAME +tcgetsid \- get session ID +.SH LIBRARY +Standard C library +.RI ( libc ", " \-lc ) +.SH SYNOPSIS +.nf +.BR "#define _XOPEN_SOURCE 500" " /* See feature_test_macros(7) */" +.B "#include <termios.h>" +.PP +.BI "pid_t tcgetsid(int " fd ); +.fi +.SH DESCRIPTION +The function +.BR tcgetsid () +returns the session ID of the current session that has the +terminal associated to +.I fd +as controlling terminal. +This terminal must be the controlling terminal of the calling process. +.SH RETURN VALUE +When +.I fd +refers to the controlling terminal of our session, +the function +.BR tcgetsid () +will return the session ID of this session. +Otherwise, \-1 is returned, and +.I errno +is set to indicate the error. +.SH ERRORS +.TP +.B EBADF +.I fd +is not a valid file descriptor. +.TP +.B ENOTTY +The calling process does not have a controlling terminal, or +it has one but it is not described by +.IR fd . +.SH ATTRIBUTES +For an explanation of the terms used in this section, see +.BR attributes (7). +.TS +allbox; +lbx lb lb +l l l. +Interface Attribute Value +T{ +.na +.nh +.BR tcgetsid () +T} Thread safety MT-Safe +.TE +.sp 1 +.SH STANDARDS +POSIX.1-2008. +.SH HISTORY +glibc 2.1. +POSIX.1-2001. +.PP +This function is implemented via the +.B TIOCGSID +.BR ioctl (2), +present +since Linux 2.1.71. +.SH SEE ALSO +.BR getsid (2) |