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-rw-r--r--usr.bin/lastcomm/lastcomm.c255
1 files changed, 255 insertions, 0 deletions
diff --git a/usr.bin/lastcomm/lastcomm.c b/usr.bin/lastcomm/lastcomm.c
new file mode 100644
index 0000000..e140c70
--- /dev/null
+++ b/usr.bin/lastcomm/lastcomm.c
@@ -0,0 +1,255 @@
+/*
+ * 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.
+ * 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 <errno.h>
+#include <pwd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include "pathnames.h"
+
+/*XXX*/#include <inttypes.h>
+
+time_t expand(u_int);
+char *flagbits(int);
+const char *getdev(dev_t);
+int readrec_forward(FILE *f, struct acctv2 *av2);
+int readrec_backward(FILE *f, struct acctv2 *av2);
+int requested(char *[], struct acctv2 *);
+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 )*/
+
+int
+main(int argc, char *argv[])
+{
+ struct acctv2 ab;
+ char *p;
+ FILE *fp;
+ int (*readrec)(FILE *f, struct acctv2 *av2);
+ time_t t;
+ int ch, rv;
+ 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;
+
+ if (strcmp(acctfile, "-") == 0) {
+ fp = stdin;
+ readrec = readrec_forward;
+ } else {
+ /* Open the file. */
+ if ((fp = fopen(acctfile, "r")) == NULL)
+ err(1, "could not open %s", acctfile);
+ if (fseek(fp, 0l, SEEK_END) == -1)
+ err(1, "seek to end of %s failed", acctfile);
+ readrec = readrec_backward;
+ }
+
+ while ((rv = readrec(fp, &ab)) == 1) {
+ 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 %-8s",
+ AC_COMM_LEN, AC_COMM_LEN, ab.ac_comm,
+ flagbits(ab.ac_flagx),
+ MAXLOGNAME - 1, user_from_uid(ab.ac_uid, 0),
+ getdev(ab.ac_tty));
+
+
+ /* user + system time */
+ if (flags & AC_CTIME) {
+ (void)printf(" %6.3f secs",
+ (ab.ac_utime + ab.ac_stime) / 1000000);
+ }
+
+ /* usr time */
+ if (flags & AC_UTIME) {
+ (void)printf(" %6.3f us", ab.ac_utime / 1000000);
+ }
+
+ /* system time */
+ if (flags & AC_STIME) {
+ (void)printf(" %6.3f sy", ab.ac_stime / 1000000);
+ }
+
+ /* elapsed time */
+ if (flags & AC_ETIME) {
+ (void)printf(" %8.3f es", ab.ac_etime / 1000000);
+ }
+
+ /* 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)(ab.ac_etime / 1000000);
+ (void)printf(" %.16s", ctime(&t));
+ }
+ printf("\n");
+ }
+ if (rv == EOF)
+ err(1, "read record from %s failed", acctfile);
+
+ if (fflush(stdout))
+ err(1, "stdout");
+ exit(0);
+}
+
+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 acctv2 *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);
+}
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