'\" te
.\"  Copyright 1989 AT&T  Copyright (c) 1997, Sun Microsystems, Inc.  All Rights Reserved
.\" The contents of this file are subject to the terms of the Common Development and Distribution License (the "License").  You may not use this file except in compliance with the License.
.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE or http://www.opensolaris.org/os/licensing.  See the License for the specific language governing permissions and limitations under the License.
.\" When distributing Covered Code, include this CDDL HEADER in each file and include the License file at usr/src/OPENSOLARIS.LICENSE.  If applicable, add the following below this CDDL HEADER, with the fields enclosed by brackets "[]" replaced with your own identifying information: Portions Copyright [yyyy] [name of copyright owner]
.TH chdir 2 "28 Dec 1996" "SunOS 5.11" "System Calls"
.SH NAME
chdir, fchdir \- change working directory
.SH SYNOPSIS
.LP
.nf
#include <unistd.h>

\fBint\fR \fBchdir\fR(\fBconst char *\fR\fIpath\fR);
.fi

.LP
.nf
\fBint\fR \fBfchdir\fR(\fBint\fR \fIfildes\fR);
.fi

.SH DESCRIPTION
.sp
.LP
The \fBchdir()\fR and \fBfchdir()\fR functions cause a directory pointed to by
\fIpath\fR or \fIfildes\fR to become the current working directory.  The
starting point for path searches for path names not beginning with \fB/\fR
(slash). The \fIpath\fR argument points to the path name of a directory. The
\fIfildes\fR argument is an open file descriptor of a directory.
.sp
.LP
For a directory to become the current directory, a process must have execute
(search) access to the directory.
.SH RETURN VALUES
.sp
.LP
Upon successful completion, \fB0\fR is returned. Otherwise, \fB\(mi1\fR is
returned, the current working directory is unchanged, and \fBerrno\fR is set to
indicate the error.
.SH ERRORS
.sp
.LP
The \fBchdir()\fR function will fail if:
.sp
.ne 2
.mk
.na
\fB\fBEACCES\fR\fR
.ad
.RS 16n
.rt  
Search permission is denied for any component of the path name.
.RE

.sp
.ne 2
.mk
.na
\fB\fBEFAULT\fR\fR
.ad
.RS 16n
.rt  
The \fIpath\fR argument points to an illegal address.
.RE

.sp
.ne 2
.mk
.na
\fB\fBEINTR\fR\fR
.ad
.RS 16n
.rt  
A signal was caught during the execution of the \fBchdir()\fR function.
.RE

.sp
.ne 2
.mk
.na
\fB\fBEIO\fR\fR
.ad
.RS 16n
.rt  
An I/O error occurred while reading from or writing to the file system.
.RE

.sp
.ne 2
.mk
.na
\fB\fBELOOP\fR\fR
.ad
.RS 16n
.rt  
Too many symbolic links were encountered in translating \fIpath\fR.
.RE

.sp
.ne 2
.mk
.na
\fB\fBENAMETOOLONG\fR\fR
.ad
.RS 16n
.rt  
The length of the \fIpath\fR argument exceeds \fBPATH_MAX\fR, or the length of
a \fIpath\fR component exceeds \fBNAME_MAX\fR while \fB_POSIX_NO_TRUNC\fR is in
effect.
.RE

.sp
.ne 2
.mk
.na
\fB\fBENOENT\fR\fR
.ad
.RS 16n
.rt  
Either a component of the path prefix or the directory named by \fIpath\fR does
not exist or is a null pathname.
.RE

.sp
.ne 2
.mk
.na
\fB\fBENOLINK\fR\fR
.ad
.RS 16n
.rt  
The \fIpath\fR argument points to a remote machine and the link to that machine
is no longer active.
.RE

.sp
.ne 2
.mk
.na
\fB\fBENOTDIR\fR\fR
.ad
.RS 16n
.rt  
A component of the path name is not a directory.
.RE

.sp
.LP
The \fBfchdir()\fR function will fail if:
.sp
.ne 2
.mk
.na
\fB\fBEACCES\fR\fR
.ad
.RS 11n
.rt  
Search permission is denied for \fIfildes\fR.
.RE

.sp
.ne 2
.mk
.na
\fB\fBEBADF\fR\fR
.ad
.RS 11n
.rt  
The \fIfildes\fR argument is not an open file descriptor.
.RE

.sp
.ne 2
.mk
.na
\fB\fBEINTR\fR\fR
.ad
.RS 11n
.rt  
A signal was caught during the execution of the \fBfchdir()\fR function.
.RE

.sp
.ne 2
.mk
.na
\fB\fBEIO\fR\fR
.ad
.RS 11n
.rt  
An I/O error occurred while reading from or writing to the file system.
.RE

.sp
.ne 2
.mk
.na
\fB\fBENOLINK\fR\fR
.ad
.RS 11n
.rt  
The \fIfildes\fR argument points to a remote machine and the link to that
machine is no longer active.
.RE

.sp
.ne 2
.mk
.na
\fB\fBENOTDIR\fR\fR
.ad
.RS 11n
.rt  
The open file descriptor \fIfildes\fR does not refer to a directory.
.RE

.SH ATTRIBUTES
.sp
.LP
See \fBattributes\fR(5) for descriptions of the following attributes:
.sp

.sp
.TS
tab() box;
cw(2.75i) |cw(2.75i) 
lw(2.75i) |lw(2.75i) 
.
ATTRIBUTE TYPEATTRIBUTE VALUE
_
Interface StabilityStandard
_
MT-LevelAsync-Signal-Safe
.TE

.SH SEE ALSO
.sp
.LP
\fBchroot\fR(2), \fBattributes\fR(5), \fBstandards\fR(5)