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1/*
2 * Copyright (c) 1994 Christopher G. Demetriou
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by Christopher G. Demetriou.
16 * 4. The name of the author may not be used to endorse or promote products
17 * derived from this software without specific prior written permission
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31#ifndef lint
32static const char rcsid[] =
33 "$FreeBSD: src/usr.sbin/sa/usrdb.c,v 1.12 2002/07/15 16:05:15 des Exp $";
34#endif /* not lint */
35
36#include <sys/param.h>
37#include <sys/types.h>
38#include <sys/acct.h>
39#include <err.h>
40#include <errno.h>
41#include <fcntl.h>
42#include <pwd.h>
43#include <stdint.h>
44#include <stdio.h>
45#include <stdlib.h>
46#include <string.h>
47#include "extern.h"
48#include "pathnames.h"
49
50static int uid_compare __P((const DBT *, const DBT *));
51
52static DB *usracct_db;
53
54int
55usracct_init()
56{
57 DB *saved_usracct_db;
58 BTREEINFO bti;
59 int error;
60
61 bzero(&bti, sizeof bti);
62 bti.compare = uid_compare;
63
64 usracct_db = dbopen(NULL, O_RDWR, 0, DB_BTREE, &bti);
65 if (usracct_db == NULL)
66 return (-1);
67
68 error = 0;
69 if (!iflag) {
70 DBT key, data;
71 int serr, nerr;
72
73 saved_usracct_db = dbopen(_PATH_USRACCT, O_RDONLY, 0, DB_BTREE,
74 &bti);
75 if (saved_usracct_db == NULL) {
76 error = (errno == ENOENT) ? 0 : -1;
77 if (error)
78 warn("retrieving user accounting summary");
79 goto out;
80 }
81
82 serr = DB_SEQ(saved_usracct_db, &key, &data, R_FIRST);
83 if (serr < 0) {
84 warn("retrieving user accounting summary");
85 error = -1;
86 goto closeout;
87 }
88 while (serr == 0) {
89 nerr = DB_PUT(usracct_db, &key, &data, 0);
90 if (nerr < 0) {
91 warn("initializing user accounting stats");
92 error = -1;
93 break;
94 }
95
96 serr = DB_SEQ(saved_usracct_db, &key, &data, R_NEXT);
97 if (serr < 0) {
98 warn("retrieving user accounting summary");
99 error = -1;
100 break;
101 }
102 }
103
104closeout:
105 if (DB_CLOSE(saved_usracct_db) < 0) {
106 warn("closing user accounting summary");
107 error = -1;
108 }
109 }
110
111out:
112 if (error != 0)
113 usracct_destroy();
114 return (error);
115}
116
117void
118usracct_destroy()
119{
120 if (DB_CLOSE(usracct_db) < 0)
121 warn("destroying user accounting stats");
122}
123
124int
125usracct_add(ci)
126 const struct cmdinfo *ci;
127{
128 DBT key, data;
129 struct userinfo newui;
130 u_long uid;
131 int rv;
132
133 uid = ci->ci_uid;
134 key.data = &uid;
135 key.size = sizeof uid;
136
137 rv = DB_GET(usracct_db, &key, &data, 0);
138 if (rv < 0) {
139 warn("get key %lu from user accounting stats", uid);
140 return (-1);
141 } else if (rv == 0) { /* it's there; copy whole thing */
142 /* add the old data to the new data */
143 bcopy(data.data, &newui, data.size);
144 if (newui.ui_uid != uid) {
145 warnx("key %lu != expected record number %lu",
146 newui.ui_uid, uid);
147 warnx("inconsistent user accounting stats");
148 return (-1);
149 }
150 } else { /* it's not there; zero it and copy the key */
151 bzero(&newui, sizeof newui);
152 newui.ui_uid = ci->ci_uid;
153 }
154
155 newui.ui_calls += ci->ci_calls;
156 newui.ui_utime += ci->ci_utime;
157 newui.ui_stime += ci->ci_stime;
158 newui.ui_mem += ci->ci_mem;
159 newui.ui_io += ci->ci_io;
160
161 data.data = &newui;
162 data.size = sizeof newui;
163 rv = DB_PUT(usracct_db, &key, &data, 0);
164 if (rv < 0) {
165 warn("add key %lu to user accounting stats", uid);
166 return (-1);
167 } else if (rv != 0) {
168 warnx("DB_PUT returned 1");
169 return (-1);
170 }
171
172 return (0);
173}
174
175int
176usracct_update()
177{
178 DB *saved_usracct_db;
179 DBT key, data;
180 BTREEINFO bti;
181 int error, serr, nerr;
182
183 bzero(&bti, sizeof bti);
184 bti.compare = uid_compare;
185
186 saved_usracct_db = dbopen(_PATH_USRACCT, O_RDWR|O_CREAT|O_TRUNC, 0644,
187 DB_BTREE, &bti);
188 if (saved_usracct_db == NULL) {
189 warn("creating user accounting summary");
190 return (-1);
191 }
192
193 error = 0;
194
195 serr = DB_SEQ(usracct_db, &key, &data, R_FIRST);
196 if (serr < 0) {
197 warn("retrieving user accounting stats");
198 error = -1;
199 }
200 while (serr == 0) {
201 nerr = DB_PUT(saved_usracct_db, &key, &data, 0);
202 if (nerr < 0) {
203 warn("saving user accounting summary");
204 error = -1;
205 break;
206 }
207
208 serr = DB_SEQ(usracct_db, &key, &data, R_NEXT);
209 if (serr < 0) {
210 warn("retrieving user accounting stats");
211 error = -1;
212 break;
213 }
214 }
215
216 if (DB_SYNC(saved_usracct_db, 0) < 0) {
217 warn("syncing process accounting summary");
218 error = -1;
219 }
220 if (DB_CLOSE(saved_usracct_db) < 0) {
221 warn("closing process accounting summary");
222 error = -1;
223 }
224 return error;
225}
226
227void
228usracct_print()
229{
230 DBT key, data;
231 struct userinfo uistore, *ui = &uistore;
232 double t;
233 int rv;
234
235 rv = DB_SEQ(usracct_db, &key, &data, R_FIRST);
236 if (rv < 0)
237 warn("retrieving user accounting stats");
238
239 while (rv == 0) {
240 memcpy(ui, data.data, sizeof(struct userinfo));
241
242 printf("%-*s %9ju ", MAXLOGNAME - 1,
243 user_from_uid(ui->ui_uid, 0), (uintmax_t)ui->ui_calls);
244
245 t = (double) (ui->ui_utime + ui->ui_stime) /
246 (double) AHZ;
247 if (t < 0.0001) /* kill divide by zero */
248 t = 0.0001;
249
250 printf("%12.2f%s ", t / 60.0, "cpu");
251
252 /* ui->ui_calls is always != 0 */
253 if (dflag)
254 printf("%12ju%s",
255 (uintmax_t)(ui->ui_io / ui->ui_calls), "avio");
256 else
257 printf("%12ju%s", (uintmax_t)ui->ui_io, "tio");
258
259 /* t is always >= 0.0001; see above */
260 if (kflag)
261 printf("%12.0f%s", ui->ui_mem / t, "k");
262 else
263 printf("%12ju%s", (uintmax_t)ui->ui_mem, "k*sec");
264
265 printf("\n");
266
267 rv = DB_SEQ(usracct_db, &key, &data, R_NEXT);
268 if (rv < 0)
269 warn("retrieving user accounting stats");
270 }
271}
272
273static int
274uid_compare(k1, k2)
275 const DBT *k1, *k2;
276{
277 u_long d1, d2;
278
279 bcopy(k1->data, &d1, sizeof d1);
280 bcopy(k2->data, &d2, sizeof d2);
281
282 if (d1 < d2)
283 return -1;
284 else if (d1 == d2)
285 return 0;
286 else
287 return 1;
288}