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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	usr.bin/lastcomm/lastcomm.c	Lines:	0	70	0.0 %
Date:	2016-12-06	Branches:	0	62	0.0 %


/*	$OpenBSD: lastcomm.c,v 1.23 2015/10/09 01:37:08 deraadt Exp $	*/
/*	$NetBSD: lastcomm.c,v 1.9 1995/10/22 01:43:42 ghudson Exp $	*/

/*
 * Copyright (c) 1980, 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/param.h>	/* NODEV */
#include <sys/stat.h>
#include <sys/acct.h>

#include <ctype.h>
#include <err.h>
#include <fcntl.h>
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <struct.h>
#include <unistd.h>
#include <utmp.h>
#include <pwd.h>
#include "pathnames.h"

time_t	 expand(u_int);
char	*flagbits(int);
char	*getdev(dev_t);
int	 requested(char *[], struct acct *);
void	 usage(void);

#define SECSPERMIN	(60)
#define SECSPERHOUR	(60 * 60)

int
main(int argc, char *argv[])
{
	char *p;
	struct acct ab;
	struct stat sb;
	FILE *fp;
	off_t size;
	time_t t;
	double delta;
	int ch;
	char *acctfile;

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

	acctfile = _PATH_ACCT;
	while ((ch = getopt(argc, argv, "f:")) != -1)
		switch(ch) {
		case 'f':
			acctfile = optarg;
			break;
		case '?':
		default:
			usage();
		}
	argc -= optind;
	argv += optind;

	/* Open the file. */
	if ((fp = fopen(acctfile, "r")) == NULL || fstat(fileno(fp), &sb))
		err(1, "%s", acctfile);

	/*
	 * Round off to integral number of accounting records, probably
	 * not necessary, but it doesn't hurt.
	 */
	size = sb.st_size - sb.st_size % sizeof(struct acct);

	/* Check if any records to display. */
	if (size < sizeof(struct acct))
		exit(0);

	/*
	 * Seek to before the last entry in the file; use lseek(2) in case
	 * the file is bigger than a "long".
	 */
	size -= sizeof(struct acct);
	if (lseek(fileno(fp), size, SEEK_SET) == -1)
		err(1, "%s", acctfile);

	for (;;) {
		if (fread(&ab, sizeof(struct acct), 1, fp) != 1)
			err(1, "%s", acctfile);

		if (ab.ac_comm[0] == '\0') {
			ab.ac_comm[0] = '?';
			ab.ac_comm[1] = '\0';
		} else
			for (p = &ab.ac_comm[0];
			    p < &ab.ac_comm[fldsiz(acct, ac_comm)] && *p; ++p)
				if (!isprint((unsigned char)*p))
					*p = '?';
		if (!*argv || requested(argv, &ab))
		{
			t = expand(ab.ac_utime) + expand(ab.ac_stime);
			(void)printf("%-*.*s %-7s %-*.*s %-*.*s %6.2f secs %.16s",
			    (int)fldsiz(acct, ac_comm),
			    (int)fldsiz(acct, ac_comm),
			    ab.ac_comm, flagbits(ab.ac_flag), UT_NAMESIZE,
			    UT_NAMESIZE, user_from_uid(ab.ac_uid, 0),
			    UT_LINESIZE, UT_LINESIZE, getdev(ab.ac_tty),
			    t / (double)AHZ, ctime(&ab.ac_btime));
			delta = expand(ab.ac_etime) / (double)AHZ;
			printf(" (%1.0f:%02.0f:%05.2f)\n",
			    delta / SECSPERHOUR,
			    fmod(delta, (double)SECSPERHOUR) / SECSPERMIN,
			    fmod(delta, (double)SECSPERMIN));
		}

		if (size == 0)
			break;
		/* seek to previous entry */
		if (fseek(fp, 2 * -(long)sizeof(struct acct), SEEK_CUR) == -1)
			err(1, "%s", acctfile);
		size -= sizeof(struct acct);
	}
	exit(0);
}

time_t
expand(u_int t)
{
	time_t nt;

	nt = t & 017777;
	t >>= 13;
	while (t) {
		t--;
		nt <<= 3;
	}
	return (nt);
}

char *
flagbits(int f)
{
	static char flags[20] = "-";
	char *p;

#define	BIT(flag, ch)	if (f & flag) *p++ = ch

	p = flags + 1;
	BIT(ASU, 'S');
	BIT(AFORK, 'F');
	BIT(ACOMPAT, 'C');
	BIT(ACORE, 'D');
	BIT(AXSIG, 'X');
	*p = '\0';
	return (flags);
}

int
requested(char *argv[], struct acct *acp)
{
	do {
		if (!strcmp(user_from_uid(acp->ac_uid, 0), *argv))
			return (1);
		if (!strcmp(getdev(acp->ac_tty), *argv))
			return (1);
		if (!strncmp(acp->ac_comm, *argv, fldsiz(acct, ac_comm)))
			return (1);
	} while (*++argv);
	return (0);
}

char *
getdev(dev_t dev)
{
	static dev_t lastdev = (dev_t)-1;
	static char *lastname;

	if (dev == NODEV)			/* Special case. */
		return ("__");
	if (dev == lastdev)			/* One-element cache. */
		return (lastname);
	lastdev = dev;
	if ((lastname = devname(dev, S_IFCHR)) == NULL)
		lastname = "??";
	return (lastname);
}

void
usage(void)
{
	(void)fprintf(stderr,
	    "usage: lastcomm [-f file] [command ...] [user ...] [terminal ...]\n");
	exit(1);
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: lastcomm.c,v 1.23 2015/10/09 01:37:08 deraadt Exp $ */
2			/* $NetBSD: lastcomm.c,v 1.9 1995/10/22 01:43:42 ghudson Exp $ */
3
4			/*
5			* Copyright (c) 1980, 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/param.h> /* NODEV */
34			#include <sys/stat.h>
35			#include <sys/acct.h>
36
37			#include <ctype.h>
38			#include <err.h>
39			#include <fcntl.h>
40			#include <math.h>
41			#include <stdio.h>
42			#include <stdlib.h>
43			#include <string.h>
44			#include <struct.h>
45			#include <unistd.h>
46			#include <utmp.h>
47			#include <pwd.h>
48			#include "pathnames.h"
49
50			time_t expand(u_int);
51			char *flagbits(int);
52			char *getdev(dev_t);
53			int requested(char [], struct acct );
54			void usage(void);
55
56			#define SECSPERMIN (60)
57			#define SECSPERHOUR (60 * 60)
58
59			int
60			main(int argc, char *argv[])
61			{
62			char *p;
63			struct acct ab;
64			struct stat sb;
65			FILE *fp;
66			off_t size;
67			time_t t;
68			double delta;
69			int ch;
70			char *acctfile;
71
72			if (pledge("stdio rpath getpw wpath cpath", NULL) == -1)
73			err(1, "pledge");
74
75			acctfile = _PATH_ACCT;
76			while ((ch = getopt(argc, argv, "f:")) != -1)
77			switch(ch) {
78			case 'f':
79			acctfile = optarg;
80			break;
81			case '?':
82			default:
83			usage();
84			}
85			argc -= optind;
86			argv += optind;
87
88			/* Open the file. */
89			if ((fp = fopen(acctfile, "r")) == NULL \|\| fstat(fileno(fp), &sb))
90			err(1, "%s", acctfile);
91
92			/*
93			* Round off to integral number of accounting records, probably
94			* not necessary, but it doesn't hurt.
95			*/
96			size = sb.st_size - sb.st_size % sizeof(struct acct);
97
98			/* Check if any records to display. */
99			if (size < sizeof(struct acct))
100			exit(0);
101
102			/*
103			* Seek to before the last entry in the file; use lseek(2) in case
104			* the file is bigger than a "long".
105			*/
106			size -= sizeof(struct acct);
107			if (lseek(fileno(fp), size, SEEK_SET) == -1)
108			err(1, "%s", acctfile);
109
110			for (;;) {
111			if (fread(&ab, sizeof(struct acct), 1, fp) != 1)
112			err(1, "%s", acctfile);
113
114			if (ab.ac_comm[0] == '\0') {
115			ab.ac_comm[0] = '?';
116			ab.ac_comm[1] = '\0';
117			} else
118			for (p = &ab.ac_comm[0];
119			p < &ab.ac_comm[fldsiz(acct, ac_comm)] && *p; ++p)
120			if (!isprint((unsigned char)*p))
121			*p = '?';
122			if (!*argv \|\| requested(argv, &ab))
123			{
124			t = expand(ab.ac_utime) + expand(ab.ac_stime);
125			(void)printf("%-.s %-7s %-.s %-.s %6.2f secs %.16s",
126			(int)fldsiz(acct, ac_comm),
127			(int)fldsiz(acct, ac_comm),
128			ab.ac_comm, flagbits(ab.ac_flag), UT_NAMESIZE,
129			UT_NAMESIZE, user_from_uid(ab.ac_uid, 0),
130			UT_LINESIZE, UT_LINESIZE, getdev(ab.ac_tty),
131			t / (double)AHZ, ctime(&ab.ac_btime));
132			delta = expand(ab.ac_etime) / (double)AHZ;
133			printf(" (%1.0f:%02.0f:%05.2f)\n",
134			delta / SECSPERHOUR,
135			fmod(delta, (double)SECSPERHOUR) / SECSPERMIN,
136			fmod(delta, (double)SECSPERMIN));
137			}
138
139			if (size == 0)
140			break;
141			/* seek to previous entry */
142			if (fseek(fp, 2 * -(long)sizeof(struct acct), SEEK_CUR) == -1)
143			err(1, "%s", acctfile);
144			size -= sizeof(struct acct);
145			}
146			exit(0);
147			}
148
149			time_t
150			expand(u_int t)
151			{
152			time_t nt;
153
154			nt = t & 017777;
155			t >>= 13;
156			while (t) {
157			t--;
158			nt <<= 3;
159			}
160			return (nt);
161			}
162
163			char *
164			flagbits(int f)
165			{
166			static char flags[20] = "-";
167			char *p;
168
169			#define BIT(flag, ch) if (f & flag) *p++ = ch
170
171			p = flags + 1;
172			BIT(ASU, 'S');
173			BIT(AFORK, 'F');
174			BIT(ACOMPAT, 'C');
175			BIT(ACORE, 'D');
176			BIT(AXSIG, 'X');
177			*p = '\0';
178			return (flags);
179			}
180
181			int
182			requested(char argv[], struct acct acp)
183			{
184			do {
185			if (!strcmp(user_from_uid(acp->ac_uid, 0), *argv))
186			return (1);
187			if (!strcmp(getdev(acp->ac_tty), *argv))
188			return (1);
189			if (!strncmp(acp->ac_comm, *argv, fldsiz(acct, ac_comm)))
190			return (1);
191			} while (*++argv);
192			return (0);
193			}
194
195			char *
196			getdev(dev_t dev)
197			{
198			static dev_t lastdev = (dev_t)-1;
199			static char *lastname;
200
201			if (dev == NODEV) /* Special case. */
202			return ("__");
203			if (dev == lastdev) /* One-element cache. */
204			return (lastname);
205			lastdev = dev;
206			if ((lastname = devname(dev, S_IFCHR)) == NULL)
207			lastname = "??";
208			return (lastname);
209			}
210
211			void
212			usage(void)
213			{
214			(void)fprintf(stderr,
215			"usage: lastcomm [-f file] [command ...] [user ...] [terminal ...]\n");
216			exit(1);
217			}