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| -rw-r--r-- | man3/ctermid.3 | 74 |
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diff --git a/man3/ctermid.3 b/man3/ctermid.3 new file mode 100644 index 0000000..0a2ab66 --- /dev/null +++ b/man3/ctermid.3 @@ -0,0 +1,74 @@ +'\" t +.\" Copyright (c) 1993 by Thomas Koenig (ig25@rz.uni-karlsruhe.de) +.\" +.\" SPDX-License-Identifier: Linux-man-pages-copyleft +.\" +.\" Modified Sat Jul 24 19:51:06 1993 by Rik Faith (faith@cs.unc.edu) +.TH ctermid 3 2023-07-20 "Linux man-pages 6.05.01" +.SH NAME +ctermid \- get controlling terminal name +.SH LIBRARY +Standard C library +.RI ( libc ", " \-lc ) +.SH SYNOPSIS +.nf +.B #include <stdio.h> +.\" POSIX also requires this function to be declared in <unistd.h>, +.\" and glibc does so if suitable feature test macros are defined. +.PP +.BI "char *ctermid(char *" "s" ); +.fi +.PP +.RS -4 +Feature Test Macro Requirements for glibc (see +.BR feature_test_macros (7)): +.RE +.PP +.BR ctermid (): +.nf + _POSIX_C_SOURCE +.fi +.SH DESCRIPTION +.BR ctermid () +returns a string which is the pathname for the current +controlling terminal for this process. +If +.I s +is NULL, +a static buffer is used, otherwise +.I s +points to a buffer used to hold the terminal pathname. +The symbolic constant +.B L_ctermid +is the maximum number of characters in the returned pathname. +.SH RETURN VALUE +The pointer to the pathname. +.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 ctermid () +T} Thread safety MT-Safe +.TE +.sp 1 +.SH STANDARDS +POSIX.1-2008. +.SH HISTORY +POSIX.1-2001, Svr4. +.SH BUGS +The returned pathname may not uniquely identify the controlling +terminal; it may, for example, be +.IR /dev/tty . +.PP +It is not assured that the program can open the terminal. +.\" in glibc 2.3.x, x >= 4, the glibc headers threw an error +.\" if ctermid() was given an argument; fixed in glibc 2.4. +.SH SEE ALSO +.BR ttyname (3) |