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- /*-
- * Copyright (c) 2014 Pietro Cerutti <gahr@FreeBSD.org>
- * 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/capsicum.h>
- #include <capsicum_helpers.h>
- #include <err.h>
- #include <errno.h>
- #include <utmpx.h>
- #include <algorithm>
- #include <iostream>
- #include <iterator>
- #include <set>
- #include <string>
- using namespace std;
- int
- main(int argc, char **)
- {
- struct utmpx *ut;
- set<string> names;
- if (argc > 1) {
- cerr << "usage: users" << endl;
- return (1);
- }
- setutxent();
- if (caph_enter())
- err(1, "Failed to enter capability mode.");
- while ((ut = getutxent()) != NULL)
- if (ut->ut_type == USER_PROCESS)
- names.insert(ut->ut_user);
- endutxent();
- if (!names.empty()) {
- set<string>::iterator last = names.end();
- --last;
- copy(names.begin(), last, ostream_iterator<string>(cout, " "));
- cout << *last << endl;
- }
- }
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