.\" Copyright (C) 2002 Andries Brouwer (aeb@cwi.nl)
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.\" Traducido por Miguel Pérez Ibars <mpi79470@alu.um.es> el 10-julio-2004
.\"
.TH DIRFD 3 "5 enero 2002" "Linux 2.5" "Manual del Programador de Linux"
.SH NOMBRE
dirfd \- obtiene el descriptor de fichero de un flujo de directorio
.SH SINOPSIS
.B #include <sys/types.h>
.br
.B #include <dirent.h>
.sp
.BI "int dirfd(DIR *" dir );
.SH DESCRIPCIÓN
La función
.B dirfd()
devuelve el descriptor de fichero asociado con el flujo de directorio
.IR dir .
.SH ERRORES
En caso de error devuelve \-1.
.SH OBSERVACIONES
El prototipo para
.B dirfd
está solamente disponible si
.B _BSD_SOURCE
o
.B _SVID_SOURCE
están definidos (bien explícitamente, o implícitamente, no definiendo
_POSIX_SOURCE o compilando con la opción -ansi).
.SH "CONFORME A"
Ésta es una extensión de BSD, presente en 4.3BSD-Reno, no en 4.2BSD.
Presente también en libc5 (desde 5.1.2) y en glibc2.
.SH "VÉASE TAMBIÉN"
.BR open (2),
.BR closedir (3),
.BR opendir (3),
.BR readdir (3),
.BR rewinddir (3),
.BR scandir (3),
.BR seekdir (3),
.BR telldir (3)