xref: /freebsd/usr.sbin/sa/usrdb.c (revision ae83180158c4c937f170e31eff311b18c0286a93)
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   "$FreeBSD$";
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 }
289