centos man page for ctermid

Query: ctermid

OS: centos

Section: 3

Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar

CTERMID(3)						     Linux Programmer's Manual							CTERMID(3)

NAME
ctermid - get controlling terminal name
SYNOPSIS
#include <stdio.h> char *ctermid(char *s); Feature Test Macro Requirements for glibc (see feature_test_macros(7)): ctermid(): _POSIX_C_SOURCE >= 1 || _XOPEN_SOURCE || _POSIX_SOURCE
DESCRIPTION
ctermid() returns a string which is the pathname for the current controlling terminal for this process. If s is NULL, a static buffer is used, otherwise s points to a buffer used to hold the terminal pathname. The symbolic constant L_ctermid is the maximum number of charac- ters in the returned pathname.
RETURN VALUE
The pointer to the pathname.
ATTRIBUTES
Multithreading (see pthreads(7)) The ctermid() function is thread-safe with exceptions. It is not thread-safe if called with a NULL parameter.
CONFORMING TO
Svr4, POSIX.1-2001.
BUGS
The path returned may not uniquely identify the controlling terminal; it may, for example, be /dev/tty. It is not assured that the program can open the terminal.
SEE ALSO
ttyname(3)
COLOPHON
This page is part of release 3.53 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.
GNU
2013-07-04 CTERMID(3)
Related Man Pages
ctermid_r(3) - osx
ctermid(3) - php
ctermid(3) - opendarwin
ctermid(3) - xfree86
ctermid(3) - plan9
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