Import macOS userland

adv_cmds-176
basic_cmds-55
bootstrap_cmds-116.100.1
developer_cmds-66
diskdev_cmds-667.40.1
doc_cmds-53.60.1
file_cmds-321.40.3
mail_cmds-35
misc_cmds-34
network_cmds-606.40.1
patch_cmds-17
remote_cmds-63
shell_cmds-216.60.1
system_cmds-880.60.2
text_cmds-106

2 files changed, 184 insertions, 0 deletions

diff --git a/shell_cmds/users/users.1 b/shell_cmds/users/users.1
new file mode 100644
index 0000000..5c4f872
--- /dev/null
+++ b/shell_cmds/users/users.1
@@ -0,0 +1,61 @@
+.\"	$NetBSD: users.1,v 1.5 1997/10/20 02:41:21 lukem Exp $
+.\"
+.\" Copyright (c) 1980, 1990, 1991, 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.
+.\"
+.\"     @(#)users.1	8.1 (Berkeley) 6/6/93
+.\"
+.Dd June 6, 1993
+.Dt USERS 1
+.Os BSD 3
+.Sh NAME
+.Nm users
+.Nd list current users
+.Sh SYNOPSIS
+.Nm
+.Sh DESCRIPTION
+.Nm
+lists the login names of the users currently on the system,
+in sorted order, space separated, on a single line.
+.Sh FILES
+.Bl -tag -width /var/run/utmpx
+.It Pa /var/run/utmpx
+.El
+.Sh SEE ALSO
+.Xr finger 1 ,
+.Xr last 1 ,
+.Xr who 1 ,
+.Xr utmpx 5
+.Sh HISTORY
+The
+.Nm
+command appeared in
+.Bx 3.0 .
diff --git a/shell_cmds/users/users.c b/shell_cmds/users/users.c
new file mode 100644
index 0000000..ff24ecb
--- /dev/null
+++ b/shell_cmds/users/users.c
@@ -0,0 +1,123 @@
+/*	$NetBSD: users.c,v 1.7 1998/02/03 04:19:15 perry Exp $	*/
+
+/*
+ * Copyright (c) 1980, 1987, 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.
+ */
+
+#include <sys/cdefs.h>
+#ifndef lint
+__COPYRIGHT("@(#) Copyright (c) 1980, 1987, 1993\n\
+	The Regents of the University of California.  All rights reserved.\n");
+#endif /* not lint */
+
+#ifndef lint
+#if 0
+static char sccsid[] = "@(#)users.c	8.1 (Berkeley) 6/6/93";
+#endif
+__RCSID("$NetBSD: users.c,v 1.7 1998/02/03 04:19:15 perry Exp $");
+#endif /* not lint */
+
+#include <sys/types.h>
+
+#include <err.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <unistd.h>
+#include <utmpx.h>
+
+typedef char	namebuf[_UTX_USERSIZE];
+
+int	main __P((int, char **));
+int scmp __P((const void *, const void *));
+
+int
+main(argc, argv)
+	int argc;
+	char **argv;
+{
+	namebuf *names = NULL;
+	int ncnt = 0;
+	int nmax = 0;
+	int cnt;
+	struct utmpx *ux;
+	int ch;
+
+	while ((ch = getopt(argc, argv, "")) != -1)
+		switch(ch) {
+		case '?':
+		default:
+			(void)fprintf(stderr, "usage: users\n");
+			exit(1);
+		}
+	argc -= optind;
+	argv += optind;
+
+	setutxent();
+
+	while ((ux = getutxent()) != NULL) {
+		if (*ux->ut_user && ux->ut_type == USER_PROCESS)
+		{
+			if (ncnt >= nmax) {
+				nmax += 32;
+				names = realloc(names, 
+					sizeof (*names) * nmax);
+
+				if (!names) {
+					err(1, "realloc");
+					/* NOTREACHED */
+				}
+			}
+
+			(void)strncpy(names[ncnt], ux->ut_user, _UTX_USERSIZE);
+			++ncnt;
+		}
+	}
+
+	if (ncnt) {
+		qsort(names, ncnt, _UTX_USERSIZE, scmp);
+		(void)printf("%.*s", _UTX_USERSIZE, names[0]);
+		for (cnt = 1; cnt < ncnt; ++cnt)
+			if (strncmp(names[cnt], names[cnt - 1], _UTX_USERSIZE))
+				(void)printf(" %.*s", _UTX_USERSIZE, names[cnt]);
+		(void)printf("\n");
+	}
+	exit(0);
+}
+
+int
+scmp(p, q)
+	const void *p, *q;
+{
+	return(strncmp((char *) p, (char *) q, _UTX_USERSIZE));
+}