<TITLE>ctermid</TITLE>
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<h3>CTERMID(3) Linux Programmer's Manual CTERMID(3)
</h3>
<h3>NAME
</h3> ctermid - get controlling terminal name
<h3>SYNOPSIS
</h3> #include <stdio.h>
char *ctermid(char *s);
<h3>DESCRIPTION
</h3> 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.
<h3>RETURN VALUE
</h3> The pointer to the pathname.
<h3>CONFORMS TO
</h3> POSIX.1
<h3>BUGS
</h3> The path returned may not uniquely identify the control-
ling terminal; it may, for example, be /dev/tty.
It is not assured that the program can open the terminal.
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<h3>SEE ALSO
</h3><p>
<a href=ttyname.htm>ttyname</a>,
<pre>
<h3>GNU April 6, 1993 1
</h3>
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