1.\" Copyright (c) 1980, 1991, 1993 2.\" The Regents of the University of California. 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.\" @(#)acct.2 8.1 (Berkeley) 6/4/93 33.\" $FreeBSD: src/lib/libc/sys/acct.2,v 1.6.2.4 2001/12/14 18:34:00 ru Exp $ 34.\" 35.Dd June 4, 1993 36.Dt ACCT 2 37.Os 38.Sh NAME 39.Nm acct 40.Nd enable or disable process accounting 41.Sh LIBRARY 42.Lb libc 43.Sh SYNOPSIS 44.In unistd.h 45.Ft int 46.Fn acct "const char *file" 47.Sh DESCRIPTION 48The 49.Fn acct 50call enables or disables the collection of system accounting 51records. 52If the argument 53.Fa file 54is a nil pointer, accounting is disabled. 55If 56.Fa file 57is an 58.Em existing 59pathname (null-terminated), record collection is enabled and for 60every process initiated which terminates under normal 61conditions an accounting record is appended to 62.Fa file . 63Abnormal conditions of termination are reboots 64or other fatal system problems. 65Records for processes which never terminate can not be 66produced by 67.Fn acct . 68.Pp 69For more information on the record structure used by 70.Fn acct , 71see 72.Pa /usr/include/sys/acct.h 73and 74.Xr acct 5 . 75.Pp 76This call is permitted only to the super-user. 77.Sh NOTES 78Accounting is automatically disabled when the file system the 79accounting file resides on runs out of space; it is enabled when 80space once again becomes available. 81.Sh RETURN VALUES 82On error -1 is returned. 83The file must exist and the call may be exercised only by the super-user. 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 super-user. 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 255 characters, 94or an entire path name exceeded 1023 characters. 95.It Bq Er ENOENT 96The named file does not exist. 97.It Bq Er EACCES 98Search permission is denied for a component of the path prefix, 99or the path name is not a regular file. 100.It Bq Er ELOOP 101Too many symbolic links were encountered in translating the pathname. 102.It Bq Er EROFS 103The named file resides on a read-only file system. 104.It Bq Er EFAULT 105.Fa File 106points outside the process's allocated address space. 107.It Bq Er EIO 108An I/O error occurred while reading from or writing to the file system. 109.El 110.Sh SEE ALSO 111.Xr acct 5 , 112.Xr sa 8 113.Sh HISTORY 114An 115.Fn acct 116function call appeared in 117.At v7 . 118