1994-05-30 19:09:18 +00:00
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.\" Copyright (c) 1991, 1993
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.\" The Regents of the University of California. All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by the University of
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.\" California, Berkeley and its contributors.
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.\" 4. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" @(#)acct.5 8.1 (Berkeley) 6/5/93
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1999-08-28 00:22:10 +00:00
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.\" $FreeBSD$
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1994-05-30 19:09:18 +00:00
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.\"
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.Dd June 5, 1993
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.Dt ACCT 5
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.Os
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.Sh NAME
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.Nm acct
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.Nd execution accounting file
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.Sh SYNOPSIS
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1997-03-19 19:48:24 +00:00
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.Fd #include <sys/types.h>
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1994-05-30 19:09:18 +00:00
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.Fd #include <sys/acct.h>
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.Sh DESCRIPTION
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The kernel maintains the following
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.Fa acct
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information structure for all
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processes. If a process terminates, and accounting is enabled,
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the kernel calls the
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.Xr acct 2
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function call to prepare and append the record
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to the accounting file.
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.Bd -literal
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/*
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* Accounting structures; these use a comp_t type which is a 3 bits base 8
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* exponent, 13 bit fraction ``floating point'' number. Units are 1/AHZ
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* seconds.
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*/
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typedef u_short comp_t;
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1997-01-28 06:53:19 +00:00
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#define AC_COMM_LEN 16
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1994-05-30 19:09:18 +00:00
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struct acct {
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1997-01-28 06:53:19 +00:00
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char ac_comm[AC_COMM_LEN]; /* command name */
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1994-05-30 19:09:18 +00:00
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comp_t ac_utime; /* user time */
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comp_t ac_stime; /* system time */
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comp_t ac_etime; /* elapsed time */
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time_t ac_btime; /* starting time */
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uid_t ac_uid; /* user id */
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gid_t ac_gid; /* group id */
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1997-01-28 06:53:19 +00:00
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short ac_mem; /* average memory usage */
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1994-05-30 19:09:18 +00:00
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comp_t ac_io; /* count of IO blocks */
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dev_t ac_tty; /* controlling tty */
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1998-06-28 21:33:42 +00:00
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#define AFORK 0x01 /* forked but not exec'ed */
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1994-05-30 19:09:18 +00:00
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#define ASU 0x02 /* used super-user permissions */
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#define ACOMPAT 0x04 /* used compatibility mode */
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#define ACORE 0x08 /* dumped core */
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#define AXSIG 0x10 /* killed by a signal */
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char ac_flag; /* accounting flags */
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};
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/*
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* 1/AHZ is the granularity of the data encoded in the comp_t fields.
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* This is not necessarily equal to hz.
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*/
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#define AHZ 64
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.Ed
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.Pp
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If a terminated process was created by an
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.Xr execve 2 ,
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the name of the executed file (at most ten characters of it)
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is saved in the field
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.Fa ac_comm
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and its status is saved by setting one of more of the following flags in
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.Fa ac_flag:
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.Dv AFORK ,
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.Dv ASU ,
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.Dv ACOMPAT ,
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.Dv ACORE
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and
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.Dv ASIG .
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.Sh SEE ALSO
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.Xr acct 2 ,
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.Xr execve 2 ,
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.Xr sa 8
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.Sh HISTORY
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A
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.Nm
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file format appeared in
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.At v7 .
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