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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 | |
32 | static 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 | ||
50 | static int uid_compare __P((const DBT *, const DBT *)); | |
51 | ||
52 | static DB *usracct_db; | |
53 | ||
54 | int | |
55 | usracct_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 | ||
104 | closeout: | |
105 | if (DB_CLOSE(saved_usracct_db) < 0) { | |
106 | warn("closing user accounting summary"); | |
107 | error = -1; | |
108 | } | |
109 | } | |
110 | ||
111 | out: | |
112 | if (error != 0) | |
113 | usracct_destroy(); | |
114 | return (error); | |
115 | } | |
116 | ||
117 | void | |
118 | usracct_destroy() | |
119 | { | |
120 | if (DB_CLOSE(usracct_db) < 0) | |
121 | warn("destroying user accounting stats"); | |
122 | } | |
123 | ||
124 | int | |
125 | usracct_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 | ||
175 | int | |
176 | usracct_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 | ||
227 | void | |
228 | usracct_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 | ||
273 | static int | |
274 | uid_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 | } |