111 lines
3.3 KiB
C
111 lines
3.3 KiB
C
/* $NetBSD: users.c,v 1.17 2016/09/05 00:40:30 sevan 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. 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\
|
|
The Regents of the University of California. All rights reserved.");
|
|
#endif /* not lint */
|
|
|
|
#ifndef lint
|
|
#if 0
|
|
static char sccsid[] = "@(#)users.c 8.1 (Berkeley) 6/6/93";
|
|
#endif
|
|
__RCSID("$NetBSD: users.c,v 1.17 2016/09/05 00:40:30 sevan Exp $");
|
|
#endif /* not lint */
|
|
|
|
#include <sys/types.h>
|
|
|
|
#include <err.h>
|
|
#include <time.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
|
|
#include "utmpentry.h"
|
|
|
|
int
|
|
main(int argc, char **argv)
|
|
{
|
|
int ncnt = 0;
|
|
int ch;
|
|
struct utmpentry *from, *ehead, *save, **nextp;
|
|
|
|
while ((ch = getopt(argc, argv, "")) != -1)
|
|
switch(ch) {
|
|
case '?':
|
|
default:
|
|
(void)fprintf(stderr, "usage: %s\n", getprogname());
|
|
exit(1);
|
|
}
|
|
argc -= optind;
|
|
argv += optind;
|
|
|
|
ncnt = getutentries(NULL, &ehead);
|
|
|
|
if (ncnt == 0)
|
|
return 0;
|
|
|
|
/*
|
|
* XXX the utmp list belongs to getutentries and we shouldn't
|
|
* sort it in place. Since we don't call endutentries and we
|
|
* don't call getutentries again it doesn't matter, but it's
|
|
* untidy. Maybe give getutentries a sort function? It has to
|
|
* sort anyway if it's merging utmp and utmpx data.
|
|
*/
|
|
|
|
from = ehead;
|
|
ehead = NULL;
|
|
while (from != NULL) {
|
|
for (nextp = &ehead;
|
|
(*nextp) && strcmp(from->name, (*nextp)->name) > 0;
|
|
nextp = &(*nextp)->next)
|
|
continue;
|
|
save = from;
|
|
from = from->next;
|
|
save->next = *nextp;
|
|
*nextp = save;
|
|
}
|
|
|
|
save = ehead;
|
|
(void)printf("%s", ehead->name);
|
|
|
|
for (from = ehead->next; from; from = from->next)
|
|
if (strcmp(save->name, from->name) != 0) {
|
|
(void)printf(" %s", from->name);
|
|
save = from;
|
|
}
|
|
|
|
(void)printf("\n");
|
|
exit(0);
|
|
}
|