Differential D9046 Diff 23698 head/usr.bin/users/users.cc

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head/usr.bin/users/users.cc

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	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS			* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)			* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT			* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY			* 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			* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	* SUCH DAMAGE.			* SUCH DAMAGE.
	*/			*/

				#include <sys/capsicum.h>
	#include <sys/cdefs.h>			#include <sys/cdefs.h>
	__FBSDID("$FreeBSD$");			__FBSDID("$FreeBSD$");

				#include <err.h>
				#include <errno.h>
	#include <utmpx.h>			#include <utmpx.h>

	#include <algorithm>			#include <algorithm>
	#include <iostream>			#include <iostream>
	#include <iterator>			#include <iterator>
	#include <set>			#include <set>
	#include <string>			#include <string>
	using namespace std;			using namespace std;

	int			int
	main(int argc, char **)			main(int argc, char **)
	{			{
	struct utmpx *ut;			struct utmpx *ut;
	set<string> names;			set<string> names;

	if (argc > 1) {			if (argc > 1) {
	cerr << "usage: users" << endl;			cerr << "usage: users" << endl;
	return (1);			return (1);
	}			}

	setutxent();			setutxent();

				if (cap_enter() < 0 && errno != ENOSYS)
				err(1, "Failed to enter capability mode.");

	while ((ut = getutxent()) != NULL)			while ((ut = getutxent()) != NULL)
	if (ut->ut_type == USER_PROCESS)			if (ut->ut_type == USER_PROCESS)
	names.insert(ut->ut_user);			names.insert(ut->ut_user);
	endutxent();			endutxent();

	if (!names.empty()) {			if (!names.empty()) {
	set<string>::iterator last = names.end();			set<string>::iterator last = names.end();
	--last;			--last;
	copy(names.begin(), last, ostream_iterator<string>(cout, " "));			copy(names.begin(), last, ostream_iterator<string>(cout, " "));
	cout << *last << endl;			cout << *last << endl;
	}			}
	}			}