mirror of
https://github.com/freebsd/freebsd-src.git
synced 2024-12-05 01:30:43 +00:00
285 lines
6.8 KiB
C
285 lines
6.8 KiB
C
/*
|
|
* Copyright (c) 1980, 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#ifndef lint
|
|
static const char copyright[] =
|
|
"@(#) Copyright (c) 1980, 1993\n\
|
|
The Regents of the University of California. All rights reserved.\n";
|
|
#endif /* not lint */
|
|
|
|
#ifndef lint
|
|
#if 0
|
|
static char sccsid[] = "@(#)lastcomm.c 8.1 (Berkeley) 6/6/93";
|
|
#endif
|
|
#endif /* not lint */
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/stat.h>
|
|
#include <sys/acct.h>
|
|
|
|
#include <ctype.h>
|
|
#include <err.h>
|
|
#include <fcntl.h>
|
|
#include <pwd.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include <utmp.h>
|
|
#include "pathnames.h"
|
|
|
|
/*XXX*/#include <inttypes.h>
|
|
|
|
time_t expand(u_int);
|
|
char *flagbits(int);
|
|
const char *getdev(dev_t);
|
|
int requested(char *[], struct acct *);
|
|
static void usage(void);
|
|
|
|
#define AC_UTIME 1 /* user */
|
|
#define AC_STIME 2 /* system */
|
|
#define AC_ETIME 4 /* elapsed */
|
|
#define AC_CTIME 8 /* user + system time, default */
|
|
|
|
#define AC_BTIME 16 /* starting time */
|
|
#define AC_FTIME 32 /* exit time (starting time + elapsed time )*/
|
|
|
|
#define AC_HZ ((double)AHZ)
|
|
|
|
int
|
|
main(int argc, char *argv[])
|
|
{
|
|
char *p;
|
|
struct acct ab;
|
|
struct stat sb;
|
|
FILE *fp;
|
|
off_t size;
|
|
time_t t;
|
|
int ch;
|
|
const char *acctfile;
|
|
int flags = 0;
|
|
|
|
acctfile = _PATH_ACCT;
|
|
while ((ch = getopt(argc, argv, "f:usecSE")) != -1)
|
|
switch((char)ch) {
|
|
case 'f':
|
|
acctfile = optarg;
|
|
break;
|
|
|
|
case 'u':
|
|
flags |= AC_UTIME; /* user time */
|
|
break;
|
|
case 's':
|
|
flags |= AC_STIME; /* system time */
|
|
break;
|
|
case 'e':
|
|
flags |= AC_ETIME; /* elapsed time */
|
|
break;
|
|
case 'c':
|
|
flags |= AC_CTIME; /* user + system time */
|
|
break;
|
|
|
|
case 'S':
|
|
flags |= AC_BTIME; /* starting time */
|
|
break;
|
|
case 'E':
|
|
/* exit time (starting time + elapsed time )*/
|
|
flags |= AC_FTIME;
|
|
break;
|
|
|
|
case '?':
|
|
default:
|
|
usage();
|
|
}
|
|
|
|
/* default user + system time and starting time */
|
|
if (!flags) {
|
|
flags = AC_CTIME | AC_BTIME;
|
|
}
|
|
|
|
argc -= optind;
|
|
argv += optind;
|
|
|
|
/* Open the file. */
|
|
if ((fp = fopen(acctfile, "r")) == NULL || fstat(fileno(fp), &sb))
|
|
err(1, "could not open %s", acctfile);
|
|
|
|
/*
|
|
* Round off to integral number of accounting records, probably
|
|
* not necessary, but it doesn't hurt.
|
|
*/
|
|
size = sb.st_size - sb.st_size % sizeof(struct acct);
|
|
|
|
/* Check if any records to display. */
|
|
if ((unsigned)size < sizeof(struct acct))
|
|
exit(0);
|
|
|
|
do {
|
|
int rv;
|
|
size -= sizeof(struct acct);
|
|
if (fseeko(fp, size, SEEK_SET) == -1)
|
|
err(1, "seek %s failed", acctfile);
|
|
if ((rv = fread(&ab, sizeof(struct acct), 1, fp)) != 1)
|
|
err(1, "read %s returned %d", acctfile, rv);
|
|
|
|
if (ab.ac_comm[0] == '\0') {
|
|
ab.ac_comm[0] = '?';
|
|
ab.ac_comm[1] = '\0';
|
|
} else
|
|
for (p = &ab.ac_comm[0];
|
|
p < &ab.ac_comm[AC_COMM_LEN] && *p; ++p)
|
|
if (!isprint(*p))
|
|
*p = '?';
|
|
if (*argv && !requested(argv, &ab))
|
|
continue;
|
|
|
|
(void)printf("%-*.*s %-7s %-*s %-*s",
|
|
AC_COMM_LEN, AC_COMM_LEN, ab.ac_comm,
|
|
flagbits(ab.ac_flag),
|
|
UT_NAMESIZE, user_from_uid(ab.ac_uid, 0),
|
|
UT_LINESIZE, getdev(ab.ac_tty));
|
|
|
|
|
|
/* user + system time */
|
|
if (flags & AC_CTIME) {
|
|
(void)printf(" %6.2f secs",
|
|
(expand(ab.ac_utime) +
|
|
expand(ab.ac_stime))/AC_HZ);
|
|
}
|
|
|
|
/* usr time */
|
|
if (flags & AC_UTIME) {
|
|
(void)printf(" %6.2f us", expand(ab.ac_utime)/AC_HZ);
|
|
}
|
|
|
|
/* system time */
|
|
if (flags & AC_STIME) {
|
|
(void)printf(" %6.2f sy", expand(ab.ac_stime)/AC_HZ);
|
|
}
|
|
|
|
/* elapsed time */
|
|
if (flags & AC_ETIME) {
|
|
(void)printf(" %8.2f es", expand(ab.ac_etime)/AC_HZ);
|
|
}
|
|
|
|
/* starting time */
|
|
if (flags & AC_BTIME) {
|
|
(void)printf(" %.16s", ctime(&ab.ac_btime));
|
|
}
|
|
|
|
/* exit time (starting time + elapsed time )*/
|
|
if (flags & AC_FTIME) {
|
|
t = ab.ac_btime;
|
|
t += (time_t)(expand(ab.ac_etime)/AC_HZ);
|
|
(void)printf(" %.16s", ctime(&t));
|
|
}
|
|
printf("\n");
|
|
|
|
} while (size > 0);
|
|
exit(0);
|
|
}
|
|
|
|
time_t
|
|
expand(u_int t)
|
|
{
|
|
time_t nt;
|
|
|
|
nt = t & 017777;
|
|
t >>= 13;
|
|
while (t) {
|
|
t--;
|
|
nt <<= 3;
|
|
}
|
|
return (nt);
|
|
}
|
|
|
|
char *
|
|
flagbits(int f)
|
|
{
|
|
static char flags[20] = "-";
|
|
char *p;
|
|
|
|
#define BIT(flag, ch) if (f & flag) *p++ = ch
|
|
|
|
p = flags + 1;
|
|
BIT(ASU, 'S');
|
|
BIT(AFORK, 'F');
|
|
BIT(ACOMPAT, 'C');
|
|
BIT(ACORE, 'D');
|
|
BIT(AXSIG, 'X');
|
|
*p = '\0';
|
|
return (flags);
|
|
}
|
|
|
|
int
|
|
requested(char *argv[], struct acct *acp)
|
|
{
|
|
const char *p;
|
|
|
|
do {
|
|
p = user_from_uid(acp->ac_uid, 0);
|
|
if (!strcmp(p, *argv))
|
|
return (1);
|
|
if ((p = getdev(acp->ac_tty)) && !strcmp(p, *argv))
|
|
return (1);
|
|
if (!strncmp(acp->ac_comm, *argv, AC_COMM_LEN))
|
|
return (1);
|
|
} while (*++argv);
|
|
return (0);
|
|
}
|
|
|
|
const char *
|
|
getdev(dev_t dev)
|
|
{
|
|
static dev_t lastdev = (dev_t)-1;
|
|
static const char *lastname;
|
|
|
|
if (dev == NODEV) /* Special case. */
|
|
return ("__");
|
|
if (dev == lastdev) /* One-element cache. */
|
|
return (lastname);
|
|
lastdev = dev;
|
|
lastname = devname(dev, S_IFCHR);
|
|
return (lastname);
|
|
}
|
|
|
|
static void
|
|
usage(void)
|
|
{
|
|
(void)fprintf(stderr,
|
|
"usage: lastcomm [-EScesu] [-f file] [command ...] [user ...] [terminal ...]\n");
|
|
exit(1);
|
|
}
|