NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | CONFORMING TO | BUGS | SEE ALSO | COLOPHON

The Linux Programming Interface

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

NAME         top

       ctermid - get controlling terminal name

SYNOPSIS         top

       #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         top

       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 characters in the returned pathname.

RETURN VALUE         top

       The pointer to the pathname.

CONFORMING TO         top

       Svr4, POSIX.1-2001.

BUGS         top

       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         top

       ttyname(3)

COLOPHON         top

       This page is part of release 3.32 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                                   2007-07-26                           CTERMID(3)

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