1.\" Copyright (c) 1980, 1991 Regents of the University of California. 2.\" All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. 9.\" 2. Redistributions in binary form must reproduce the above copyright 10.\" notice, this list of conditions and the following disclaimer in the 11.\" documentation and/or other materials provided with the distribution. 12.\" 3. All advertising materials mentioning features or use of this software 13.\" must display the following acknowledgement: 14.\" This product includes software developed by the University of 15.\" California, Berkeley and its contributors. 16.\" 4. Neither the name of the University nor the names of its contributors 17.\" may be used to endorse or promote products derived from this software 18.\" without specific prior written permission. 19.\" 20.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30.\" SUCH DAMAGE. 31.\" 32.\" from: @(#)acct.2 6.5 (Berkeley) 3/10/91 33.\" $Id: acct.2,v 1.5 1994/04/22 00:13:24 jtc Exp $ 34.\" 35.Dd March 10, 1991 36.Dt ACCT 2 37.Os BSD 4 38.Sh NAME 39.Nm acct 40.Nd enable or disable process accounting 41.Sh SYNOPSIS 42.Fd #include <unistd.h> 43.Ft int 44.Fn acct "const char *file" 45.Sh DESCRIPTION 46The 47.Fn acct 48call enables or disables the collection of system accounting 49records. 50If the argument 51.Fa file 52is a nil pointer, accounting is disabled. 53If 54.Fa file 55is an 56.Em existing 57pathname (null-terminated), record collection is enabled and for 58every process initiated which terminates under normal 59conditions an accounting record is appended to 60.Fa file . 61Abnormal conditions of termination are reboots 62or other fatal system problems. 63Records for processes which never terminate can not be 64produced by 65.Fn acct . 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 super-user. 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 error -1 is returned. 81The file must exist and the call may be exercised only by the super-user. 82.Sh ERRORS 83.Fn Acct 84will fail if one of the following is true: 85.Bl -tag -width Er 86.It Bq Er EPERM 87The caller is not the super-user. 88.It Bq Er ENOTDIR 89A component of the path prefix is not a directory. 90.It Bq Er ENAMETOOLONG 91A component of a pathname exceeded 92.Dv {NAME_MAX} 93characters, or an entire path name exceeded 94.Dv {PATH_MAX} 95characters. 96.It Bq Er ENOENT 97The named file does not exist. 98.It Bq Er EACCES 99Search permission is denied for a component of the path prefix, 100or the path name is not a regular file. 101.It Bq Er ELOOP 102Too many symbolic links were encountered in translating the pathname. 103.It Bq Er EROFS 104The named file resides on a read-only file system. 105.It Bq Er EFAULT 106.Fa File 107points outside the process's allocated address space. 108.It Bq Er EIO 109An I/O error occurred while reading from or writing to the file system. 110.El 111.Sh SEE ALSO 112.Xr acct 5 , 113.Xr sa 8 114.Sh HISTORY 115An 116.Fn acct 117function call appeared in 118.At v7 . 119