initial import of NetBSD tree

4 files changed, 397 insertions, 0 deletions

diff --git a/usr.bin/lastcomm/Makefile b/usr.bin/lastcomm/Makefile
new file mode 100644
index 00000000000..5c174f74b55
--- /dev/null
+++ b/usr.bin/lastcomm/Makefile
@@ -0,0 +1,6 @@
+#	$NetBSD: Makefile,v 1.4 1994/12/22 01:06:58 jtc Exp $
+#	@(#)Makefile	8.1 (Berkeley) 6/6/93
+
+PROG=	lastcomm
+
+.include <bsd.prog.mk>
diff --git a/usr.bin/lastcomm/lastcomm.1 b/usr.bin/lastcomm/lastcomm.1
new file mode 100644
index 00000000000..9ca85c2b839
--- /dev/null
+++ b/usr.bin/lastcomm/lastcomm.1
@@ -0,0 +1,126 @@
+.\"	$NetBSD: lastcomm.1,v 1.4 1995/02/27 02:40:23 cgd Exp $
+.\"
+.\" Copyright (c) 1980, 1990, 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.
+.\"
+.\"	@(#)lastcomm.1	8.1 (Berkeley) 6/6/93
+.\"
+.Dd June 6, 1993
+.Dt LASTCOMM 1
+.Os BSD 3
+.Sh NAME
+.Nm lastcomm
+.Nd show last commands executed in reverse order
+.Sh SYNOPSIS
+.Nm lastcomm
+.Op Fl f Ar file
+.Op Ar command ...
+.Op Ar user ...
+.Op Ar terminal ...
+.Sh DESCRIPTION
+.Nm Lastcomm
+gives information on previously executed commands.
+With no arguments,
+.Nm lastcomm
+prints information about all the commands recorded
+during the current accounting file's lifetime.
+.Pp
+Option:
+.Pp
+.Bl -tag -width Fl
+.It Fl f Ar file
+Read from
+.Ar file
+rather than the default
+accounting file.
+.El
+.Pp
+If called with arguments, only accounting entries with a
+matching
+.Ar command
+name,
+.Ar user
+name,
+or
+.Ar terminal
+name
+are printed.
+So, for example:
+.Pp
+.Dl lastcomm a.out root ttyd0
+.Pp
+would produce a listing of all the
+executions of commands named
+.Pa a.out
+by user
+.Ar root
+on the terminal
+.Ar ttyd0  .
+.Pp
+For each process entry, the following are printed.
+.Pp
+.Bl -bullet -offset indent -compact
+.It
+The name of the user who ran the process.
+.It
+Flags, as accumulated by the accounting facilities in the system.
+.It
+The command name under which the process was called.
+.It
+The amount of cpu time used by the process (in seconds).
+.It
+The time the process exited.
+.El
+.Pp
+The flags are encoded as follows: ``S'' indicates the command was
+executed by the super-user, ``F'' indicates the command ran after
+a fork, but without a following
+.Xr exec ,
+``C'' indicates the command was run in PDP-11 compatibility mode
+(VAX only),
+``D'' indicates the command terminated with the generation of a
+.Pa core
+file, and ``X'' indicates the command was terminated with a signal.
+.Sh FILES
+.Bl -tag -width /var/account/acct -compact
+.It Pa /var/account/acct
+Default accounting file.
+.El
+.Sh SEE ALSO
+.Xr last 1 ,
+.Xr sigvec 2 ,
+.Xr acct 5 ,
+.Xr core 5
+.Sh HISTORY
+The
+.Nm lastcomm
+command appeared in
+.Bx 3.0 .
diff --git a/usr.bin/lastcomm/lastcomm.c b/usr.bin/lastcomm/lastcomm.c
new file mode 100644
index 00000000000..f4b88e814ea
--- /dev/null
+++ b/usr.bin/lastcomm/lastcomm.c
@@ -0,0 +1,225 @@
+/*	$NetBSD: lastcomm.c,v 1.7.2.1 1995/10/12 06:55:13 jtc Exp $	*/
+
+/*
+ * 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 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	8.2 (Berkeley) 4/29/95";
+#endif
+static char rcsid[] = "$NetBSD: lastcomm.c,v 1.7.2.1 1995/10/12 06:55:13 jtc Exp $";
+#endif /* not lint */
+
+#include <sys/param.h>
+#include <sys/stat.h>
+#include <sys/acct.h>
+
+#include <ctype.h>
+#include <err.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <struct.h>
+#include <unistd.h>
+#include <utmp.h>
+#include "pathnames.h"
+
+time_t	 expand __P((u_int));
+char	*flagbits __P((int));
+char	*getdev __P((dev_t));
+int	 requested __P((char *[], struct acct *));
+void	 usage __P((void));
+char	*user_from_uid();
+
+int
+main(argc, argv)
+	int argc;
+	char *argv[];
+{
+	register char *p;
+	struct acct ab;
+	struct stat sb;
+	FILE *fp;
+	off_t size;
+	time_t t;
+	int ch;
+	char *acctfile;
+
+	acctfile = _PATH_ACCT;
+	while ((ch = getopt(argc, argv, "f:")) != EOF)
+		switch((char)ch) {
+		case 'f':
+			acctfile = optarg;
+			break;
+		case '?':
+		default:
+			usage();
+		}
+	argc -= optind;
+	argv += optind;
+
+	/* Open the file. */
+	if ((fp = fopen(acctfile, "r")) == NULL || fstat(fileno(fp), &sb))
+		err(1, "%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 (size < sizeof(struct acct))
+		exit(0);
+
+	/*
+	 * Seek to before the last entry in the file; use lseek(2) in case
+	 * the file is bigger than a "long".
+	 */
+	size -= sizeof(struct acct);
+	if (lseek(fileno(fp), size, SEEK_SET) == -1)
+		err(1, "%s", acctfile);
+
+	for (;;) {
+		if (fread(&ab, sizeof(struct acct), 1, fp) != 1)
+			err(1, "%s", acctfile);
+
+		if (fseek(fp, 2 * -(long)sizeof(struct acct), SEEK_CUR) == -1)
+			err(1, "%s", acctfile);
+
+		if (size == 0)
+			break;
+		size -= sizeof(struct acct);
+
+		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[fldsiz(acct, ac_comm)] && *p; ++p)
+				if (!isprint(*p))
+					*p = '?';
+		if (*argv && !requested(argv, &ab))
+			continue;
+
+		t = expand(ab.ac_utime) + expand(ab.ac_stime);
+		(void)printf("%-*.*s %-7s %-*.*s %-*.*s %6.2f secs %.16s\n",
+		    fldsiz(acct, ac_comm), fldsiz(acct, ac_comm), ab.ac_comm,
+		    flagbits(ab.ac_flag), UT_NAMESIZE, UT_NAMESIZE,
+		    user_from_uid(ab.ac_uid, 0), UT_LINESIZE, UT_LINESIZE,
+		    getdev(ab.ac_tty), t / (double)AHZ, ctime(&ab.ac_btime));
+	}
+	exit(0);
+}
+
+time_t
+expand(t)
+	u_int t;
+{
+	register time_t nt;
+
+	nt = t & 017777;
+	t >>= 13;
+	while (t) {
+		t--;
+		nt <<= 3;
+	}
+	return (nt);
+}
+
+char *
+flagbits(f)
+	register 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(argv, acp)
+	register char *argv[];
+	register struct acct *acp;
+{
+	do {
+		if (!strcmp(user_from_uid(acp->ac_uid, 0), *argv))
+			return (1);
+		if (!strcmp(getdev(acp->ac_tty), *argv))
+			return (1);
+		if (!strncmp(acp->ac_comm, *argv, fldsiz(acct, ac_comm)))
+			return (1);
+	} while (*++argv);
+	return (0);
+}
+
+char *
+getdev(dev)
+	dev_t dev;
+{
+	static dev_t lastdev = (dev_t)-1;
+	static char *lastname;
+
+	if (dev == NODEV)			/* Special case. */
+		return ("__");
+	if (dev == lastdev)			/* One-element cache. */
+		return (lastname);
+	lastdev = dev;
+	if ((lastname = devname(dev, S_IFCHR)) == NULL)
+		lastname = "??";
+	return (lastname);
+}
+
+void
+usage()
+{
+	(void)fprintf(stderr,
+	    "lastcomm [ -f file ] [command ...] [user ...] [tty ...]\n");
+	exit(1);
+}
diff --git a/usr.bin/lastcomm/pathnames.h b/usr.bin/lastcomm/pathnames.h
new file mode 100644
index 00000000000..963d27942a7
--- /dev/null
+++ b/usr.bin/lastcomm/pathnames.h
@@ -0,0 +1,40 @@
+/*	$NetBSD: pathnames.h,v 1.3 1994/12/22 01:07:05 jtc Exp $	*/
+
+/*
+ * Copyright (c) 1989, 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.
+ *
+ *	@(#)pathnames.h	8.1 (Berkeley) 6/6/93
+ */
+
+#include <paths.h>
+
+#define	_PATH_ACCT	"/var/account/acct"