1.\" $OpenBSD: acct.2,v 1.9 2003/06/02 20:18:38 millert 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 June 4, 1993 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, null-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 can not be produced by 61.Fn acct . 62.Pp 63For more information on the record structure used by 64.Fn acct , 65see 66.Pa /usr/include/sys/acct.h 67and 68.Xr acct 5 . 69.Pp 70This call is permitted only to the superuser. 71.Sh NOTES 72Accounting is automatically disabled when the file system the 73accounting file resides on runs out of space; it is enabled when 74space once again becomes available. 75.Sh RETURN VALUES 76On error \-1 is returned. 77The file must exist and the call may be exercised only by the superuser. 78.Sh ERRORS 79.Fn acct 80will fail if one of the following is true: 81.Bl -tag -width Er 82.It Bq Er EPERM 83The caller is not the superuser. 84.It Bq Er ENOTDIR 85A component of the path prefix is not a directory. 86.It Bq Er ENAMETOOLONG 87A component of a pathname exceeded 88.Dv {NAME_MAX} 89characters, or an entire path name exceeded 90.Dv {PATH_MAX} 91characters. 92.It Bq Er ENOENT 93The named file does not exist. 94.It Bq Er EACCES 95Search permission is denied for a component of the path prefix, 96or the path name is not a regular file. 97.It Bq Er ELOOP 98Too many symbolic links were encountered in translating the pathname. 99.It Bq Er EROFS 100The named file resides on a read-only file system. 101.It Bq Er EFAULT 102.Fa file 103points outside the process's allocated address space. 104.It Bq Er EIO 105An I/O error occurred while reading from or writing to the file system. 106.El 107.Sh SEE ALSO 108.Xr acct 5 , 109.Xr accton 8 , 110.Xr sa 8 111.Sh HISTORY 112An 113.Fn acct 114function call appeared in 115.At v7 . 116