1.\" $OpenBSD: acct.2,v 1.15 2007/05/31 19:19:32 jmc Exp $ 2.\" $NetBSD: acct.2,v 1.6 1995/02/27 12:31:47 cgd Exp $ 3.\" 4.\" Copyright (c) 1980, 1991, 1993 5.\" The Regents of the University of California. All rights reserved. 6.\" 7.\" Redistribution and use in source and binary forms, with or without 8.\" modification, are permitted provided that the following conditions 9.\" are met: 10.\" 1. Redistributions of source code must retain the above copyright 11.\" notice, this list of conditions and the following disclaimer. 12.\" 2. Redistributions in binary form must reproduce the above copyright 13.\" notice, this list of conditions and the following disclaimer in the 14.\" documentation and/or other materials provided with the distribution. 15.\" 3. Neither the name of the University nor the names of its contributors 16.\" may be used to endorse or promote products derived from this software 17.\" without specific prior written permission. 18.\" 19.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29.\" SUCH DAMAGE. 30.\" 31.\" @(#)acct.2 8.1 (Berkeley) 6/4/93 32.\" 33.Dd $Mdocdate: May 31 2007 $ 34.Dt ACCT 2 35.Os 36.Sh NAME 37.Nm acct 38.Nd enable or disable process accounting 39.Sh SYNOPSIS 40.Fd #include <unistd.h> 41.Ft int 42.Fn acct "const char *file" 43.Sh DESCRIPTION 44The 45.Fn acct 46call enables or disables the collection of system accounting records. 47If 48.Fa file 49is 50.Dv NULL , 51accounting is disabled. 52If 53.Fa file 54is an existing, NUL-terminated pathname, record collection is enabled 55and for every process initiated which terminates under normal conditions 56an accounting record is appended to 57.Fa file . 58Abnormal conditions of termination are reboots or other 59fatal system problems. 60Records for processes which never terminate cannot be produced by 61.Fn acct . 62.Fn acct 63is only available on kernels compiled with the 64.Cm ACCOUNTING 65option. 66.Pp 67For more information on the record structure used by 68.Fn acct , 69see 70.Pa /usr/include/sys/acct.h 71and 72.Xr acct 5 . 73.Pp 74This call is permitted only to the superuser. 75.Sh NOTES 76Accounting is automatically disabled when the file system the 77accounting file resides on runs out of space; it is enabled when 78space once again becomes available. 79.Sh RETURN VALUES 80On success, zero is returned. 81Otherwise, \-1 is returned and 82.Va errno 83is set to indicate the error. 84.Sh ERRORS 85.Fn acct 86will fail if one of the following is true: 87.Bl -tag -width Er 88.It Bq Er EPERM 89The caller is not the superuser. 90.It Bq Er ENOTDIR 91A component of the path prefix is not a directory. 92.It Bq Er ENAMETOOLONG 93A component of a pathname exceeded 94.Dv {NAME_MAX} 95characters, or an entire path name exceeded 96.Dv {PATH_MAX} 97characters. 98.It Bq Er ENOENT 99The named file does not exist. 100.It Bq Er EACCES 101Search permission is denied for a component of the path prefix, 102or the path name is not a regular file. 103.It Bq Er ELOOP 104Too many symbolic links were encountered in translating the pathname. 105.It Bq Er EROFS 106The named file resides on a read-only file system. 107.It Bq Er EFAULT 108.Fa file 109points outside the process's allocated address space. 110.It Bq Er EIO 111An I/O error occurred while reading from or writing to the file system. 112.El 113.Sh SEE ALSO 114.Xr acct 5 , 115.Xr accton 8 , 116.Xr sa 8 117.Sh HISTORY 118An 119.Fn acct 120function call appeared in 121.At v7 . 122