2 * Copyright (c) 1980, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * @(#) Copyright (c) 1980, 1993 The Regents of the University of California. All rights reserved.
30 * @(#)lastcomm.c 8.1 (Berkeley) 6/6/93
31 * $FreeBSD: src/usr.bin/lastcomm/lastcomm.c,v 1.20.2.1 2007/04/18 05:53:50 dds Exp $
32 * $DragonFly: src/usr.bin/lastcomm/lastcomm.c,v 1.3 2003/10/04 20:36:47 hmp Exp $
35 #include <sys/param.h>
48 #include "pathnames.h"
52 const char *getdev(dev_t);
53 int requested(char *[], struct acct *);
54 static void usage(void);
56 #define AC_UTIME 1 /* user */
57 #define AC_STIME 2 /* system */
58 #define AC_ETIME 4 /* elapsed */
59 #define AC_CTIME 8 /* user + system time, default */
61 #define AC_BTIME 16 /* starting time */
62 #define AC_FTIME 32 /* exit time (starting time + elapsed time )*/
64 #define AC_HZ ((double)AHZ)
67 main(int argc, char *argv[])
79 acctfile = _PATH_ACCT;
80 while ((ch = getopt(argc, argv, "f:usecSE")) != -1)
87 flags |= AC_UTIME; /* user time */
90 flags |= AC_STIME; /* system time */
93 flags |= AC_ETIME; /* elapsed time */
96 flags |= AC_CTIME; /* user + system time */
100 flags |= AC_BTIME; /* starting time */
103 /* exit time (starting time + elapsed time )*/
112 /* default user + system time and starting time */
114 flags = AC_CTIME | AC_BTIME;
120 if (strcmp(acctfile, "-") == 0)
124 if ((fp = fopen(acctfile, "r")) == NULL ||
125 fstat(fileno(fp), &sb))
126 err(1, "could not open %s", acctfile);
129 * Round off to integral number of accounting records,
130 * probably not necessary, but it doesn't hurt.
132 size = sb.st_size - sb.st_size % sizeof(struct acct);
134 /* Check if any records to display. */
135 if ((unsigned)size < sizeof(struct acct))
143 size -= sizeof(struct acct);
144 if (fseeko(fp, size, SEEK_SET) == -1)
145 err(1, "seek %s failed", acctfile);
148 if ((rv = fread(&ab, sizeof(struct acct), 1, fp)) != 1) {
152 err(1, "read %s returned %d", acctfile, rv);
155 if (ab.ac_comm[0] == '\0') {
157 ab.ac_comm[1] = '\0';
159 for (p = &ab.ac_comm[0];
160 p < &ab.ac_comm[AC_COMM_LEN] && *p; ++p)
163 if (*argv && !requested(argv, &ab))
166 (void)printf("%-*.*s %-7s %-*s %-*s",
167 AC_COMM_LEN, AC_COMM_LEN, ab.ac_comm,
168 flagbits(ab.ac_flag),
169 UT_NAMESIZE, user_from_uid(ab.ac_uid, 0),
170 UT_LINESIZE, getdev(ab.ac_tty));
173 /* user + system time */
174 if (flags & AC_CTIME) {
175 (void)printf(" %6.2f secs",
176 (expand(ab.ac_utime) +
177 expand(ab.ac_stime))/AC_HZ);
181 if (flags & AC_UTIME) {
182 (void)printf(" %6.2f us", expand(ab.ac_utime)/AC_HZ);
186 if (flags & AC_STIME) {
187 (void)printf(" %6.2f sy", expand(ab.ac_stime)/AC_HZ);
191 if (flags & AC_ETIME) {
192 (void)printf(" %8.2f es", expand(ab.ac_etime)/AC_HZ);
196 if (flags & AC_BTIME) {
197 (void)printf(" %.16s", ctime(&ab.ac_btime));
200 /* exit time (starting time + elapsed time )*/
201 if (flags & AC_FTIME) {
203 t += (time_t)(expand(ab.ac_etime)/AC_HZ);
204 (void)printf(" %.16s", ctime(&t));
229 static char flags[20] = "-";
232 #define BIT(flag, ch) if (f & flag) *p++ = ch
245 requested(char *argv[], struct acct *acp)
250 p = user_from_uid(acp->ac_uid, 0);
251 if (!strcmp(p, *argv))
253 if ((p = getdev(acp->ac_tty)) && !strcmp(p, *argv))
255 if (!strncmp(acp->ac_comm, *argv, AC_COMM_LEN))
264 static dev_t lastdev = (dev_t)-1;
265 static const char *lastname;
267 if (dev == NODEV) /* Special case. */
269 if (dev == lastdev) /* One-element cache. */
272 lastname = devname(dev, S_IFCHR);
279 (void)fprintf(stderr,
280 "usage: lastcomm [-EScesu] [-f file] [command ...] [user ...] [terminal ...]\n");