1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
|
.\" -*- nroff -*-
.\" 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)
.\" Modified Tue Jul 9 23:55:17 1996 by aeb
.\" Modified Fri Jan 24 00:26:00 1997 by aeb
.\"
.TH READLINK 2 "21/08/1997" "Linux 2.0.30" "Manual do Programador Linux"
.SH NOME
readlink \- l valor de uma ligao simblica
.SH SINOPSE
.B #include <unistd.h>
.sp
.BI "int readlink(const char *" path ", char *" buf ", size_t " bufsiz );
.SH DESCRIO
.B readlink
colocq o contedo de uma ligao simblica
.I path
no buffer
.IR buf ,
o qual tem o tamanho de
.IR bufsiz .
.B readlink
no anexa um caracter
.B NUL
para
.IR buf .
Ele ir truncar o contedo (para um tamanho de
.I bufsiz
caracteres), no caso o buffer muito pequeno para guardar todo o contedo.
.SH "VALORES RETORNADOS"
A chamada devolve a contagem de caracteres colocados no buffer
se ela tem sucesso, ou um \-1 se um erro ocorre, colocando o cdigo de erro em
.IR errno .
.SH ERROS
.TP
.B ENOTDIR
Um componente do caminho no um diretrio.
.TP
.B EINVAL
.I bufsiz
no positivo.
.TP
.B ENAMETOOLONG
Um nome de caminho, ou um componente deste, muito longo.
.TP
.B ENOENT
O arquivo nomeado no existe.
.TP
.B EACCES
Permisso de busca negada para um componte do caminho.
.TP
.B ELOOP
Muitas ligaes simblicas foi encontrada na traduo do caminho.
.TP
.B EINVAL
O arquivo nomeado no uma ligao simblica.
.TP
.B EIO
Um erro de E/S ocorreu enquanto estava lendo o sistema de arquivos.
.TP
.B EFAULT
.I buf
extende-se para fora do processo de alocao de espao de endereos.
.TP
.B ENOMEM
Memria de kernel disponvel insuficiente.
.SH "DE ACORDO COM"
X/OPEN, BSD 4.4 (a chamada de funo
.B readlink
apareceu no BSD 4.2).
.SH "VEJA TAMBM"
.BR stat (2),
.BR lstat (2),
.BR symlink (2)
.SH TRADUZIDO POR LDP-BR em 22/08/2000.
\&\fR\&\f(CWAndr L. Fassone Canova <lonelywolf@blv.com.br> (traduo)\fR
\&\fR\&\f(CWxxxxxxxxxxxxxxxxxxxxxxxxx <xxx@xxxxxx.xxx.xx> (reviso)\fR
|
