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.\" @(#)acct.2 6.5 (Berkeley) 3/10/91 33.\" 34.Dd March 10, 1991 35.Dt ACCT 2 36.Os BSD 4 37.Sh NAME 38.Nm acct 39.Nd enable or disable process accounting 40.Sh SYNOPSIS 41.Fd #include <unistd.h> 42.Ft int 43.Fn acct "const char *file" 44.Sh DESCRIPTION 45The 46.Fn acct 47call enables or disables the collection of system accounting 48records. 49If the argument 50.Fa file 51is a nil pointer, accounting is disabled. 52If 53.Fa file 54is an 55.Em existing 56pathname (null-terminated), record collection is enabled and for 57every process initiated which terminates under normal 58conditions an accounting record is appended to 59.Fa file . 60Abnormal conditions of termination are reboots 61or other fatal system problems. 62Records for processes which never terminate can not be 63produced by 64.Fn acct . 65.Pp 66For more information on the record structure used by 67.Fn acct , 68see 69.Pa /usr/include/sys/acct.h 70and 71.Xr acct 5 . 72.Pp 73This call is permitted only to the super-user. 74.Sh NOTES 75Accounting is automatically disabled when the file system the 76accounting file resides on runs out of space; it is enabled when 77space once again becomes available. 78.Sh RETURN VALUES 79On error -1 is returned. 80The file must exist and the call may be exercised only by the super-user. 81.Sh ERRORS 82.Fn Acct 83will fail if one of the following is true: 84.Bl -tag -width Er 85.It Bq Er EPERM 86The caller is not the super-user. 87.It Bq Er ENOTDIR 88A component of the path prefix is not a directory. 89.It Bq Er EINVAL 90The pathname contains a character with the high-order bit set. 91.It Bq Er ENAMETOOLONG 92A component of a pathname exceeded 255 characters, 93or an entire path name exceeded 1023 characters. 94.It Bq Er ENOENT 95The named file does not exist. 96.It Bq Er EACCES 97Search permission is denied for a component of the path prefix, 98or the path name is not a regular file. 99.It Bq Er ELOOP 100Too many symbolic links were encountered in translating the pathname. 101.It Bq Er EROFS 102The named file resides on a read-only file system. 103.It Bq Er EFAULT 104.Fa File 105points outside the process's allocated address space. 106.It Bq Er EIO 107An I/O error occurred while reading from or writing to the file system. 108.El 109.Sh SEE ALSO 110.Xr acct 5 , 111.Xr sa 8 112.Sh HISTORY 113An 114.Nm 115function call appeared in Version 7 AT&T UNIX. 116