Head

GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	usr.bin/users/users.c	Lines:	0	32	0.0 %
Date:	2016-12-06	Branches:	0	20	0.0 %


/*	$OpenBSD: users.c,v 1.13 2015/10/09 01:37:09 deraadt Exp $	*/
/*	$NetBSD: users.c,v 1.5 1994/12/20 15:58:19 jtc 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/types.h>

#include <err.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <utmp.h>

typedef char	namebuf[UT_NAMESIZE];

int scmp(const void *, const void *);

int
main(int argc, char *argv[])
{
	namebuf *names = NULL;
	int ncnt = 0;
	int nmax = 0;
	int cnt;
	struct utmp utmp;
	int ch;

	if (pledge("stdio rpath wpath cpath", NULL) == -1)
		err(1, "pledge");

	while ((ch = getopt(argc, argv, "")) != -1)
		switch(ch) {
		case '?':
		default:
			(void)fprintf(stderr, "usage: users\n");
			exit(1);
		}
	argc -= optind;
	argv += optind;

	if (!freopen(_PATH_UTMP, "r", stdin)) {
		err(1, "can't open %s", _PATH_UTMP);
		/* NOTREACHED */
	}

	while (fread((char *)&utmp, sizeof(utmp), 1, stdin) == 1) {
		if (*utmp.ut_name) {
			if (ncnt >= nmax) {
				size_t newmax = nmax + 32;
				namebuf *newnames;

				newnames = reallocarray(names, newmax,
				    sizeof(*names));

				if (newnames == NULL) {
					err(1, NULL);
					/* NOTREACHED */
				}
				names = newnames;
				nmax = newmax;
			}

			(void)strncpy(names[ncnt], utmp.ut_name, UT_NAMESIZE);
			++ncnt;
		}
	}

	if (ncnt) {
		qsort(names, ncnt, UT_NAMESIZE, scmp);
		(void)printf("%.*s", UT_NAMESIZE, names[0]);
		for (cnt = 1; cnt < ncnt; ++cnt)
			if (strncmp(names[cnt], names[cnt - 1], UT_NAMESIZE))
				(void)printf(" %.*s", UT_NAMESIZE, names[cnt]);
		(void)printf("\n");
	}
	exit(0);
}

int
scmp(const void *p, const void *q)
{
	return(strncmp((char *) p, (char *) q, UT_NAMESIZE));
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: users.c,v 1.13 2015/10/09 01:37:09 deraadt Exp $ */
2			/* $NetBSD: users.c,v 1.5 1994/12/20 15:58:19 jtc Exp $ */
3
4			/*
5			* Copyright (c) 1980, 1987, 1993
6			* The Regents of the University of California. All rights reserved.
7			*
8			* Redistribution and use in source and binary forms, with or without
9			* modification, are permitted provided that the following conditions
10			* are met:
11			* 1. Redistributions of source code must retain the above copyright
12			* notice, this list of conditions and the following disclaimer.
13			* 2. Redistributions in binary form must reproduce the above copyright
14			* notice, this list of conditions and the following disclaimer in the
15			* documentation and/or other materials provided with the distribution.
16			* 3. Neither the name of the University nor the names of its contributors
17			* may be used to endorse or promote products derived from this software
18			* without specific prior written permission.
19			*
20			* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21			* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22			* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23			* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24			* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25			* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26			* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27			* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28			* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29			* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30			* SUCH DAMAGE.
31			*/
32
33			#include <sys/types.h>
34
35			#include <err.h>
36			#include <stdio.h>
37			#include <stdlib.h>
38			#include <string.h>
39			#include <unistd.h>
40			#include <utmp.h>
41
42			typedef char namebuf[UT_NAMESIZE];
43
44			int scmp(const void , const void );
45
46			int
47			main(int argc, char *argv[])
48			{
49			namebuf *names = NULL;
50			int ncnt = 0;
51			int nmax = 0;
52			int cnt;
53			struct utmp utmp;
54			int ch;
55
56			if (pledge("stdio rpath wpath cpath", NULL) == -1)
57			err(1, "pledge");
58
59			while ((ch = getopt(argc, argv, "")) != -1)
60			switch(ch) {
61			case '?':
62			default:
63			(void)fprintf(stderr, "usage: users\n");
64			exit(1);
65			}
66			argc -= optind;
67			argv += optind;
68
69			if (!freopen(_PATH_UTMP, "r", stdin)) {
70			err(1, "can't open %s", _PATH_UTMP);
71			/* NOTREACHED */
72			}
73
74			while (fread((char *)&utmp, sizeof(utmp), 1, stdin) == 1) {
75			if (*utmp.ut_name) {
76			if (ncnt >= nmax) {
77			size_t newmax = nmax + 32;
78			namebuf *newnames;
79
80			newnames = reallocarray(names, newmax,
81			sizeof(*names));
82
83			if (newnames == NULL) {
84			err(1, NULL);
85			/* NOTREACHED */
86			}
87			names = newnames;
88			nmax = newmax;
89			}
90
91			(void)strncpy(names[ncnt], utmp.ut_name, UT_NAMESIZE);
92			++ncnt;
93			}
94			}
95
96			if (ncnt) {
97			qsort(names, ncnt, UT_NAMESIZE, scmp);
98			(void)printf("%.*s", UT_NAMESIZE, names[0]);
99			for (cnt = 1; cnt < ncnt; ++cnt)
100			if (strncmp(names[cnt], names[cnt - 1], UT_NAMESIZE))
101			(void)printf(" %.*s", UT_NAMESIZE, names[cnt]);
102			(void)printf("\n");
103			}
104			exit(0);
105			}
106
107			int
108			scmp(const void p, const void q)
109			{
110			return(strncmp((char ) p, (char ) q, UT_NAMESIZE));
111			}