.\" -*- coding: UTF-8 -*-
'\" t
.\" Copyright (c) 1993
.\"	The Regents of the University of California.  All rights reserved.
.\"
.\" SPDX-License-Identifier: BSD-4-Clause-UC
.\"
.\"	@(#)daemon.3	8.1 (Berkeley) 6/9/93
.\" Added mentioning of glibc weirdness wrt unistd.h. 5/11/98, Al Viro
.\"*******************************************************************
.\"
.\" This file was generated with po4a. Translate the source file.
.\"
.\"*******************************************************************
.TH daemon 3 "15 dezembro 2022" "Linux man\-pages 6.03" 
.SH NOME
daemon \- rodar no background
.SH BIBLIOTECA
Biblioteca C Padrão (\fIlibc\fP, \fI\-lc\fP)
.SH SINOPSE
.nf
\fB#include <unistd.h>\fP
.PP
\fBint daemon(int \fP\fInochdir\fP\fB, int \fP\fInoclose\fP\fB);\fP
.fi
.PP
.RS -4
Requisitos de macro de teste de recursos para o glibc (consulte
\fBfeature_test_macros\fP(7)):
.RE
.PP
\fBdaemon\fP():
.nf
.\"             commit 266865c0e7b79d4196e2cc393693463f03c90bd8
    Desde o glibc 2.21:
        _DEFAULT_SOURCE
    No glibc 2.19 e 2.20:
        _DEFAULT_SOURCE || (_XOPEN_SOURCE && _XOPEN_SOURCE < 500)
    Até e incluindo o glibc 2.19:
        _BSD_SOURCE || (_XOPEN_SOURCE && _XOPEN_SOURCE < 500)
.fi
.SH DESCRIÇÃO
A função \fBdaemon\fP() serve para desvincular o programa do terminal
controlador e fazê\-lo rodar no background como um daemon.
.PP
If \fInochdir\fP is zero, \fBdaemon\fP()  changes the process's current working
directory to the root directory ("/"); otherwise, the current working
directory is left unchanged.
.PP
If \fInoclose\fP is zero, \fBdaemon\fP()  redirects standard input, standard
output, and standard error to \fI/dev/null\fP; otherwise, no changes are made
to these file descriptors.
.SH "VALOR DE RETORNO"
.\" not .IR in order not to underline _
(This function forks, and if the \fBfork\fP(2)  succeeds, the parent calls
\fB_exit\fP(2), so that further errors are seen by the child only.)  On success
\fBdaemon\fP()  returns zero.  If an error occurs, \fBdaemon\fP()  returns \-1 and
sets \fIerrno\fP to any of the errors specified for the \fBfork\fP(2)  and
\fBsetsid\fP(2).
.SH ATRIBUTOS
Para uma explicação dos termos usados nesta seção, consulte
\fBattributes\fP(7).
.ad l
.nh
.TS
allbox;
lbx lb lb
l l l.
Interface	Atributo	Valor
T{
\fBdaemon\fP()
T}	Thread safety	MT\-Safe
.TE
.hy
.ad
.sp 1
.SH PADRÕES
Not in POSIX.1.  A similar function appears on the BSDs.  The \fBdaemon\fP()
function first appeared in 4.4BSD.
.SH NOTAS
The glibc implementation can also return \-1 when \fI/dev/null\fP exists but is
not a character device with the expected major and minor numbers.  In this
case, \fIerrno\fP need not be set.
.SH BUGS
.\" FIXME . https://sourceware.org/bugzilla/show_bug.cgi?id=19144
.\" Tested using a program that uses daemon() and then opens an
.\" otherwise unused console device (/dev/ttyN) that does not
.\" have an associated getty process.
The GNU C library implementation of this function was taken from BSD, and
does not employ the double\-fork technique (i.e., \fBfork\fP(2), \fBsetsid\fP(2),
\fBfork\fP(2))  that is necessary to ensure that the resulting daemon process
is not a session leader.  Instead, the resulting daemon \fIis\fP a session
leader.  On systems that follow System V semantics (e.g., Linux), this means
that if the daemon opens a terminal that is not already a controlling
terminal for another session, then that terminal will inadvertently become
the controlling terminal for the daemon.
.SH "VEJA TAMBÉM"
\fBfork\fP(2), \fBsetsid\fP(2), \fBdaemon\fP(7), \fBlogrotate\fP(8)
.PP
.SH TRADUÇÃO
A tradução para português brasileiro desta página man foi criada por
Paulo César Mendes <drpc@ism.com.br>
e
André Luiz Fassone <lonely_wolf@ig.com.br>
.
.PP
Esta tradução é uma documentação livre; leia a
.UR https://www.gnu.org/licenses/gpl-3.0.html
Licença Pública Geral GNU Versão 3 
.UE
ou posterior para as condições de direitos autorais.
Nenhuma responsabilidade é aceita.
.PP
Se você encontrar algum erro na tradução desta página de manual,
envie um e-mail para
.MT debian-l10n-portuguese@lists.debian.org
a lista de discussão de tradutores
.ME .