.\" (c) 1993 by Thomas Koenig (ig25@rz.uni-karlsruhe.de)
.\"
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.\" Modified Sat Jul 24 19:51:06 1993 by Rik Faith (faith@cs.unc.edu)
.\"
.\" Traducido al castellano (con permiso) por:
.\" Sebastian Desimone (chipy@argenet.com.ar) (desimone@fasta.edu.ar)
.\" Translation fixed on Thu Apr 23 16:27:38 CEST 1998 by Gerardo
.\" Aburruzaga García <gerardo.aburruzaga@uca.es>
.\"
.TH CTERMID 3  "9 Enero 1995" "GNU" "Manual del Programador de Linux"
.SH NOMBRE
ctermid \- obtiene el nombre de la terminal de control
.SH SINOPSIS
.nf
.B #include <stdio.h>
.sp
.BI "char *ctermid(char *" "s" ");"
.fi
.SH DESCRIPCIÓN
.B ctermid()
devuelve una cadena que es el camino de la terminal controlador actual
para este proceso.
Si
.I s
es
.BR NULL ,
se emplea un búfer estático; si no,
.I s
apunta a un búfer usado para contener el camino de la terminal.
La constante simbólica
.B L_ctermid
es el máximo número de caracteres del camino devuelto.
.SH "VALOR DEVUELTO"
El puntero al camino.
.SH "CONFORME A"
SVID, Apartado 1; POSIX.1
.SH "FALLOS"
El camino devuelto puede no identificar únicamente a la terminal controladora;
ésta puede, por ejemplo, ser
.BR /dev/tty .
.PP
No se garantiza que el programa pueda abrir la terminal.
.SH "VÉASE TAMBIÉN"
.BR ttyname (3)