1/*-
2 * SPDX-License-Identifier: BSD-4-Clause
3 *
4 * Copyright (c) 1994 Christopher G. Demetriou
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 *    must display the following acknowledgement:
17 *      This product includes software developed by Christopher G. Demetriou.
18 * 4. The name of the author may not be used to endorse or promote products
19 *    derived from this software without specific prior written permission
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 */
32
33#include <sys/types.h>
34#include <sys/acct.h>
35#include <err.h>
36#include <errno.h>
37#include <fcntl.h>
38#include <stdbool.h>
39#include <stdint.h>
40#include <stdio.h>
41#include <string.h>
42#include "extern.h"
43#include "pathnames.h"
44
45static int check_junk(const struct cmdinfo *);
46static void add_ci(const struct cmdinfo *, struct cmdinfo *);
47static void print_ci(const struct cmdinfo *, const struct cmdinfo *);
48
49static DB	*pacct_db;
50
51/* Legacy format in AHZV1 units. */
52struct cmdinfov1 {
53	char		ci_comm[MAXCOMLEN+2];	/* command name (+ '*') */
54	uid_t		ci_uid;			/* user id */
55	u_quad_t	ci_calls;		/* number of calls */
56	u_quad_t	ci_etime;		/* elapsed time */
57	u_quad_t	ci_utime;		/* user time */
58	u_quad_t	ci_stime;		/* system time */
59	u_quad_t	ci_mem;			/* memory use */
60	u_quad_t	ci_io;			/* number of disk i/o ops */
61	u_int		ci_flags;		/* flags; see below */
62};
63
64/*
65 * Convert a v1 data record into the current version.
66 * Return 0 if OK, -1 on error, setting errno.
67 */
68static int
69v1_to_v2(DBT *key __unused, DBT *data)
70{
71	struct cmdinfov1 civ1;
72	static struct cmdinfo civ2;
73
74	if (data->size != sizeof(civ1)) {
75		errno = EFTYPE;
76		return (-1);
77	}
78	memcpy(&civ1, data->data, data->size);
79	memset(&civ2, 0, sizeof(civ2));
80	memcpy(civ2.ci_comm, civ1.ci_comm, sizeof(civ2.ci_comm));
81	civ2.ci_uid = civ1.ci_uid;
82	civ2.ci_calls = civ1.ci_calls;
83	civ2.ci_etime = ((double)civ1.ci_etime / AHZV1) * 1000000;
84	civ2.ci_utime = ((double)civ1.ci_utime / AHZV1) * 1000000;
85	civ2.ci_stime = ((double)civ1.ci_stime / AHZV1) * 1000000;
86	civ2.ci_mem = civ1.ci_mem;
87	civ2.ci_io = civ1.ci_io;
88	civ2.ci_flags = civ1.ci_flags;
89	data->size = sizeof(civ2);
90	data->data = &civ2;
91	return (0);
92}
93
94/* Copy pdb_file to in-memory pacct_db. */
95int
96pacct_init(void)
97{
98	return (db_copy_in(&pacct_db, pdb_file, "process accounting",
99	    NULL, v1_to_v2));
100}
101
102void
103pacct_destroy(void)
104{
105	db_destroy(pacct_db, "process accounting");
106}
107
108int
109pacct_add(const struct cmdinfo *ci)
110{
111	DBT key, data;
112	struct cmdinfo newci;
113	char keydata[sizeof ci->ci_comm];
114	int rv;
115
116	bcopy(ci->ci_comm, &keydata, sizeof keydata);
117	key.data = &keydata;
118	key.size = strlen(keydata);
119
120	rv = DB_GET(pacct_db, &key, &data, 0);
121	if (rv < 0) {
122		warn("get key %s from process accounting stats", ci->ci_comm);
123		return (-1);
124	} else if (rv == 0) {	/* it's there; copy whole thing */
125		/* XXX compare size if paranoid */
126		/* add the old data to the new data */
127		bcopy(data.data, &newci, data.size);
128	} else {		/* it's not there; zero it and copy the key */
129		bzero(&newci, sizeof newci);
130		bcopy(key.data, newci.ci_comm, key.size);
131	}
132
133	add_ci(ci, &newci);
134
135	data.data = &newci;
136	data.size = sizeof newci;
137	rv = DB_PUT(pacct_db, &key, &data, 0);
138	if (rv < 0) {
139		warn("add key %s to process accounting stats", ci->ci_comm);
140		return (-1);
141	} else if (rv == 1) {
142		warnx("duplicate key %s in process accounting stats",
143		    ci->ci_comm);
144		return (-1);
145	}
146
147	return (0);
148}
149
150/* Copy in-memory pacct_db to pdb_file. */
151int
152pacct_update(void)
153{
154	return (db_copy_out(pacct_db, pdb_file, "process accounting",
155	    NULL));
156}
157
158void
159pacct_print(void)
160{
161	BTREEINFO bti;
162	DBT key, data, ndata;
163	DB *output_pacct_db;
164	struct cmdinfo *cip, ci, ci_total, ci_other, ci_junk;
165	int rv;
166
167	bzero(&ci_total, sizeof ci_total);
168	strcpy(ci_total.ci_comm, "");
169	bzero(&ci_other, sizeof ci_other);
170	strcpy(ci_other.ci_comm, "***other");
171	bzero(&ci_junk, sizeof ci_junk);
172	strcpy(ci_junk.ci_comm, "**junk**");
173
174	/*
175	 * Retrieve them into new DB, sorted by appropriate key.
176	 * At the same time, cull 'other' and 'junk'
177	 */
178	bzero(&bti, sizeof bti);
179	bti.compare = sa_cmp;
180	output_pacct_db = dbopen(NULL, O_RDWR, 0, DB_BTREE, &bti);
181	if (output_pacct_db == NULL) {
182		warn("couldn't sort process accounting stats");
183		return;
184	}
185
186	ndata.data = NULL;
187	ndata.size = 0;
188	rv = DB_SEQ(pacct_db, &key, &data, R_FIRST);
189	if (rv < 0)
190		warn("retrieving process accounting stats");
191	while (rv == 0) {
192		cip = (struct cmdinfo *) data.data;
193		bcopy(cip, &ci, sizeof ci);
194
195		/* add to total */
196		add_ci(&ci, &ci_total);
197
198		if (vflag && ci.ci_calls <= cutoff &&
199		    (fflag || check_junk(&ci))) {
200			/* put it into **junk** */
201			add_ci(&ci, &ci_junk);
202			goto next;
203		}
204		if (!aflag &&
205		    ((ci.ci_flags & CI_UNPRINTABLE) != 0 || ci.ci_calls <= 1)) {
206			/* put into ***other */
207			add_ci(&ci, &ci_other);
208			goto next;
209		}
210		rv = DB_PUT(output_pacct_db, &data, &ndata, 0);
211		if (rv < 0)
212			warn("sorting process accounting stats");
213
214next:		rv = DB_SEQ(pacct_db, &key, &data, R_NEXT);
215		if (rv < 0)
216			warn("retrieving process accounting stats");
217	}
218
219	/* insert **junk** and ***other */
220	if (ci_junk.ci_calls != 0) {
221		data.data = &ci_junk;
222		data.size = sizeof ci_junk;
223		rv = DB_PUT(output_pacct_db, &data, &ndata, 0);
224		if (rv < 0)
225			warn("sorting process accounting stats");
226	}
227	if (ci_other.ci_calls != 0) {
228		data.data = &ci_other;
229		data.size = sizeof ci_other;
230		rv = DB_PUT(output_pacct_db, &data, &ndata, 0);
231		if (rv < 0)
232			warn("sorting process accounting stats");
233	}
234
235	/* print out the total */
236	print_ci(&ci_total, &ci_total);
237
238	/* print out; if reversed, print first (smallest) first */
239	rv = DB_SEQ(output_pacct_db, &data, &ndata, rflag ? R_FIRST : R_LAST);
240	if (rv < 0)
241		warn("retrieving process accounting report");
242	while (rv == 0) {
243		cip = (struct cmdinfo *) data.data;
244		bcopy(cip, &ci, sizeof ci);
245
246		print_ci(&ci, &ci_total);
247
248		rv = DB_SEQ(output_pacct_db, &data, &ndata,
249		    rflag ? R_NEXT : R_PREV);
250		if (rv < 0)
251			warn("retrieving process accounting report");
252	}
253	DB_CLOSE(output_pacct_db);
254}
255
256static int
257check_junk(const struct cmdinfo *cip)
258{
259	char *cp;
260	size_t len;
261
262	fprintf(stderr, "%s (%ju) -- ", cip->ci_comm, (uintmax_t)cip->ci_calls);
263	cp = fgetln(stdin, &len);
264
265	return (cp && (cp[0] == 'y' || cp[0] == 'Y')) ? 1 : 0;
266}
267
268static void
269add_ci(const struct cmdinfo *fromcip, struct cmdinfo *tocip)
270{
271	tocip->ci_calls += fromcip->ci_calls;
272	tocip->ci_etime += fromcip->ci_etime;
273	tocip->ci_utime += fromcip->ci_utime;
274	tocip->ci_stime += fromcip->ci_stime;
275	tocip->ci_mem += fromcip->ci_mem;
276	tocip->ci_io += fromcip->ci_io;
277}
278
279static void
280print_ci(const struct cmdinfo *cip, const struct cmdinfo *totalcip)
281{
282	double t, c;
283	int uflow;
284
285	c = cip->ci_calls ? cip->ci_calls : 1;
286	t = (cip->ci_utime + cip->ci_stime) / 1000000;
287	if (t < 0.01) {
288		t = 0.01;
289		uflow = 1;
290	} else
291		uflow = 0;
292
293	printf("%8ju ", (uintmax_t)cip->ci_calls);
294	if (cflag) {
295		if (cip != totalcip)
296			printf(" %4.1f%%  ", cip->ci_calls /
297			    (double)totalcip->ci_calls * 100);
298		else
299			printf(" %4s   ", "");
300	}
301
302	if (jflag)
303		printf("%11.3fre ", cip->ci_etime / (1000000 * c));
304	else
305		printf("%11.3fre ", cip->ci_etime / (60.0 * 1000000));
306	if (cflag) {
307		if (cip != totalcip)
308			printf(" %4.1f%%  ", cip->ci_etime /
309			    totalcip->ci_etime * 100);
310		else
311			printf(" %4s   ", "");
312	}
313
314	if (!lflag) {
315		if (jflag)
316			printf("%11.3fcp ", t / (double) cip->ci_calls);
317		else
318			printf("%11.2fcp ", t / 60.0);
319		if (cflag) {
320			if (cip != totalcip)
321				printf(" %4.1f%%  ",
322				    (cip->ci_utime + cip->ci_stime) /
323				    (totalcip->ci_utime + totalcip->ci_stime) *
324				    100);
325			else
326				printf(" %4s   ", "");
327		}
328	} else {
329		if (jflag)
330			printf("%11.3fu ", cip->ci_utime / (1000000 * c));
331		else
332			printf("%11.2fu ", cip->ci_utime / (60.0 * 1000000));
333		if (cflag) {
334			if (cip != totalcip)
335				printf(" %4.1f%%  ", cip->ci_utime /
336				    (double)totalcip->ci_utime * 100);
337			else
338				printf(" %4s   ", "");
339		}
340		if (jflag)
341			printf("%11.3fs ", cip->ci_stime / (1000000 * c));
342		else
343			printf("%11.2fs ", cip->ci_stime / (60.0 * 1000000));
344		if (cflag) {
345			if (cip != totalcip)
346				printf(" %4.1f%%  ", cip->ci_stime /
347				    (double)totalcip->ci_stime * 100);
348			else
349				printf(" %4s   ", "");
350		}
351	}
352
353	if (tflag) {
354		if (!uflow)
355			printf("%8.2fre/cp ",
356			    cip->ci_etime /
357			    (cip->ci_utime + cip->ci_stime));
358		else
359			printf("*ignore*      ");
360	}
361
362	if (Dflag)
363		printf("%10.0fio ", cip->ci_io);
364	else
365		printf("%8.0favio ", cip->ci_io / c);
366
367	if (Kflag)
368		printf("%10.0fk*sec ", cip->ci_mem);
369	else
370		printf("%8.0fk ", cip->ci_mem / t);
371
372	printf("  %s\n", cip->ci_comm);
373}
374