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.\" Copyright (c) 1983, 1991 The Regents of the University of California.
.\" All rights reserved.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\" notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\" notice, this list of conditions and the following disclaimer in the
.\" documentation and/or other materials provided with the distribution.
.\" 3. All advertising materials mentioning features or use of this software
.\" must display the following acknowledgement:
.\" This product includes software developed by the University of
.\" California, Berkeley and its contributors.
.\" 4. Neither the name of the University nor the names of its contributors
.\" may be used to endorse or promote products derived from this software
.\" without specific prior written permission.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
.\"
.\" @(#)readlink.2 6.8 (Berkeley) 3/10/91
.\"
.\" Modified Sat Jul 24 00:10:21 1993 by Rik Faith (faith@cs.unc.edu)
.\"
.\" Traduction 12/10/1996 Christophe BLAESS (ccb@club-internet.fr)
.\" Mise a Jour 8/04/97
.\" mj 10/12/1997 (LDP man-pages 1.18)
.TH READLINK 2 "10 Dcembre 1997" "Linux 2.0.30" "Manuel du programmeur Linux"
.SH NOM
readlink \- Lire le contenu d'un lien symbolique.
.SH SYNOPSIS
.B #include <unistd.h>
.sp
.BI "int readlink(const char *" path ", char *" buf ", size_t " bufsiz );
.SH DESCRIPTION
.B readlink
place le contenu d'un lien symbolique
.I path
dans le buffer
.IR buf ,
lequel doit contenir au moins
.I bufsiz
octets.
.B readlink
n'ajoute pas de caractre
.B NUL
dans le buffer
.IR buf .
Il tronquera le contenu ( la longueur
.IR bufsiz )
si le buffer est trop petit pour recevoir les donnes.
.SH "VALEUR RENVOYE"
.B readlink
renvoie le nombre de caractres lus, ou \-1 s'il choue,
auquel cas
.I errno
contient le code d'erreur.
.SH ERREURS
.TP 0.8i
.B ENOTDIR
Un lment du chemin d'accs n'est pas un rpertoire
.TP
.B EINVAL
.I bufsiz
n'est pas positif.
.TP
.B ENAMETOOLONG
.I path
ou l'un des composants de ce chemin d'accs est trop long.
.TP
.B ENOENT
Le fichier indiqu n'existe pas
.TP
.B EACCES
Un lment du chemin d'accs ne permet pas la recherche.
.TP
.B ELOOP
.I pathn
contient une rfrence circulaire ( travers un lien symbolique)
.TP
.B EINVAL
Le fichier n'est pas un lien symbolique
.TP
.B EIO
Une erreur d'entre/sortie s'est produite durant la lecture.
.TP
.B EFAULT
.I Buf
pointe en-dehors de l'espace d'adressage accessible.
.B ENOMEM
Pas assez de mmoire pour le noyau.
.SH CONFORMIT
X/OPEN, BSD 4.4 (la fonction
.B readlink
est apparue dans BSD 4.2).
.SH "VOIR AUSSI"
.BR stat (2),
.BR lstat (2),
.BR symlink (2)
.SH TRADUCTION
Christophe Blaess, 1997.
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