283 lines
6.5 KiB
C
283 lines
6.5 KiB
C
/*
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* Copyright (c) 1994 Christopher G. Demetriou
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* 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 Christopher G. Demetriou.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef LINT
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static char rcsid[] = "$Id: usrdb.c,v 1.1 1994/03/24 18:42:01 cgd Exp $";
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#endif
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#include <sys/types.h>
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#include <sys/acct.h>
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#include <err.h>
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#include <errno.h>
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#include <fcntl.h>
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#include "extern.h"
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#include "pathnames.h"
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static int uid_compare __P((const DBT *, const DBT *));
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static DB *usracct_db;
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int
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usracct_init()
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{
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DB *saved_usracct_db;
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BTREEINFO bti;
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int error;
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bzero(&bti, sizeof bti);
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bti.compare = uid_compare;
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usracct_db = dbopen(NULL, O_RDWR, 0, DB_BTREE, &bti);
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if (usracct_db == NULL)
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return (-1);
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error = 0;
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if (!iflag) {
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DBT key, data;
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int serr, nerr;
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saved_usracct_db = dbopen(_PATH_USRACCT, O_RDONLY, 0, DB_BTREE,
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&bti);
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if (saved_usracct_db == NULL) {
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error = (errno == ENOENT) ? 0 : -1;
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if (error)
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warn("retrieving user accounting summary");
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goto out;
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}
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serr = DB_SEQ(saved_usracct_db, &key, &data, R_FIRST);
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if (serr < 0) {
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warn("retrieving user accounting summary");
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error = -1;
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goto closeout;
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}
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while (serr == 0) {
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nerr = DB_PUT(usracct_db, &key, &data, 0);
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if (nerr < 0) {
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warn("initializing user accounting stats");
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error = -1;
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break;
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}
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serr = DB_SEQ(saved_usracct_db, &key, &data, R_NEXT);
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if (serr < 0) {
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warn("retrieving user accounting summary");
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error = -1;
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break;
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}
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}
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closeout:
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if (DB_CLOSE(saved_usracct_db) < 0) {
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warn("closing user accounting summary");
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error = -1;
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}
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}
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out:
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if (error != 0)
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usracct_destroy();
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return (error);
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}
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void
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usracct_destroy()
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{
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if (DB_CLOSE(usracct_db) < 0)
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warn("destroying user accounting stats");
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}
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int
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usracct_add(ci)
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const struct cmdinfo *ci;
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{
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DBT key, data;
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struct userinfo newui;
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u_long uid;
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int rv;
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uid = ci->ci_uid;
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key.data = &uid;
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key.size = sizeof uid;
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rv = DB_GET(usracct_db, &key, &data, 0);
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if (rv < 0) {
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warn("get key %d from user accounting stats", uid);
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return (-1);
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} else if (rv == 0) { /* it's there; copy whole thing */
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/* add the old data to the new data */
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bcopy(data.data, &newui, data.size);
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if (newui.ui_uid != uid) {
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warnx("key %d != expected record number %d",
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newui.ui_uid, uid);
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warnx("inconsistent user accounting stats");
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return (-1);
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}
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} else { /* it's not there; zero it and copy the key */
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bzero(&newui, sizeof newui);
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newui.ui_uid = ci->ci_uid;
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}
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newui.ui_calls += ci->ci_calls;
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newui.ui_utime += ci->ci_utime;
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newui.ui_stime += ci->ci_stime;
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newui.ui_mem += ci->ci_mem;
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newui.ui_io += ci->ci_io;
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data.data = &newui;
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data.size = sizeof newui;
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rv = DB_PUT(usracct_db, &key, &data, 0);
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if (rv < 0) {
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warn("add key %d to user accounting stats", uid);
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return (-1);
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} else if (rv != 0) {
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warnx("DB_PUT returned 1");
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return (-1);
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}
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return (0);
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}
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int
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usracct_update()
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{
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DB *saved_usracct_db;
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DBT key, data;
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BTREEINFO bti;
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u_long uid;
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int error, serr, nerr;
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bzero(&bti, sizeof bti);
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bti.compare = uid_compare;
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saved_usracct_db = dbopen(_PATH_USRACCT, O_RDWR|O_CREAT|O_TRUNC, 0644,
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DB_BTREE, &bti);
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if (saved_usracct_db == NULL) {
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warn("creating user accounting summary");
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return (-1);
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}
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error = 0;
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serr = DB_SEQ(usracct_db, &key, &data, R_FIRST);
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if (serr < 0) {
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warn("retrieving user accounting stats");
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error = -1;
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}
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while (serr == 0) {
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nerr = DB_PUT(saved_usracct_db, &key, &data, 0);
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if (nerr < 0) {
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warn("saving user accounting summary");
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error = -1;
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break;
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}
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serr = DB_SEQ(usracct_db, &key, &data, R_NEXT);
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if (serr < 0) {
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warn("retrieving user accounting stats");
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error = -1;
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break;
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}
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}
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if (DB_SYNC(saved_usracct_db, 0) < 0) {
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warn("syncing process accounting summary");
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error = -1;
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}
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out:
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if (DB_CLOSE(saved_usracct_db) < 0) {
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warn("closing process accounting summary");
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error = -1;
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}
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return error;
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}
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void
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usracct_print()
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{
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DBT key, data;
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struct userinfo *ui;
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double t;
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int rv;
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rv = DB_SEQ(usracct_db, &key, &data, R_FIRST);
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if (rv < 0)
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warn("retrieving user accounting stats");
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while (rv == 0) {
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ui = (struct userinfo *) data.data;
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printf("%-8s %9qu ",
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user_from_uid(ui->ui_uid, 0), ui->ui_calls);
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t = (double) (ui->ui_utime + ui->ui_stime) /
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(double) AHZ;
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if (t < 0.0001) /* kill divide by zero */
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t = 0.0001;
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printf("%12.2lf%s ", t / 60.0, "cpu");
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/* ui->ui_calls is always != 0 */
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if (dflag)
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printf("%12qu%s", ui->ui_io / ui->ui_calls, "avio");
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else
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printf("%12qu%s", ui->ui_io, "tio");
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/* t is always >= 0.0001; see above */
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if (kflag)
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printf("%12qu%s", ui->ui_mem / t, "k");
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else
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printf("%12qu%s", ui->ui_mem, "k*sec");
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printf("\n");
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rv = DB_SEQ(usracct_db, &key, &data, R_NEXT);
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if (rv < 0)
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warn("retrieving user accounting stats");
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}
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}
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static int
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uid_compare(k1, k2)
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const DBT *k1, *k2;
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{
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u_long d1, d2;
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bcopy(k1->data, &d1, sizeof d1);
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bcopy(k2->data, &d2, sizeof d2);
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if (d1 < d2)
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return -1;
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else if (d1 == d2)
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return 0;
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else
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return 1;
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}
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