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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	usr.bin/systat/main.c	Lines:	0	214	0.0 %
Date:	2017-11-13	Branches:	0	110	0.0 %


/* $Id: main.c,v 1.66 2016/10/13 11:22:46 otto Exp $	 */
/*
 * Copyright (c) 2001, 2007 Can Erkin Acar
 * Copyright (c) 2001 Daniel Hartmeier
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *    - Redistributions of source code must retain the above copyright
 *      notice, this list of conditions and the following disclaimer.
 *    - 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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
 * COPYRIGHT HOLDERS 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 <sys/sysctl.h>


#include <ctype.h>
#include <curses.h>
#include <err.h>
#include <errno.h>
#include <fcntl.h>
#include <limits.h>
#include <netdb.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#include <unistd.h>
#include <utmp.h>

#include "engine.h"
#include "systat.h"

#define TIMEPOS (80 - 8 - 20 - 1)

double	dellave;

kvm_t	*kd;
char	*nlistf = NULL;
char	*memf = NULL;
double	avenrun[3];
double	naptime = 5.0;
int	verbose = 1;		/* to report kvm read errs */
int	nflag = 1;
int	ut, hz, stathz;
char    hostname[HOST_NAME_MAX+1];
WINDOW  *wnd;
int	CMDLINE;
char	timebuf[26];
char	uloadbuf[TIMEPOS];


int  ucount(void);
void usage(void);

/* command prompt */

void cmd_delay(const char *);
void cmd_count(const char *);
void cmd_compat(const char *);

struct command cm_compat = {"Command", cmd_compat};
struct command cm_delay = {"Seconds to delay", cmd_delay};
struct command cm_count = {"Number of lines to display", cmd_count};


/* display functions */

int
print_header(void)
{
	time_t now;
	int start = dispstart + 1, end = dispstart + maxprint;
	char tmpbuf[TIMEPOS];
	char header[MAX_LINE_BUF];

	if (end > num_disp)
		end = num_disp;

	tb_start();

	if (!paused) {
		char *ctim;

		getloadavg(avenrun, sizeof(avenrun) / sizeof(avenrun[0]));

		snprintf(uloadbuf, sizeof(uloadbuf),
		    "%4d users Load %.2f %.2f %.2f",
		    ucount(), avenrun[0], avenrun[1], avenrun[2]);

		time(&now);
		ctim = ctime(&now);
		ctim[11+8] = '\0';
		strlcpy(timebuf, ctim + 11, sizeof(timebuf));
	}

	if (num_disp && (start > 1 || end != num_disp))
		snprintf(tmpbuf, sizeof(tmpbuf),
		    "%s (%u-%u of %u) %s", uloadbuf, start, end, num_disp,
		    paused ? "PAUSED" : "");
	else
		snprintf(tmpbuf, sizeof(tmpbuf),
		    "%s %s", uloadbuf,
		    paused ? "PAUSED" : "");

	snprintf(header, sizeof(header), "%-*s %19.19s %s", TIMEPOS - 1,
	    tmpbuf, hostname, timebuf);

	if (rawmode)
		printf("\n\n%s\n", header);
	else
		mvprintw(0, 0, "%s", header);

	return (1);
}

/* compatibility functions, rearrange later */
void
error(const char *fmt, ...)
{
	va_list ap;
	char buf[MAX_LINE_BUF];

	va_start(ap, fmt);
	vsnprintf(buf, sizeof buf, fmt, ap);
	va_end(ap);

	message_set(buf);
}

void
nlisterr(struct nlist namelist[])
{
	int i, n;

	n = 0;
	clear();
	mvprintw(2, 10, "systat: nlist: can't find following symbols:");
	for (i = 0;
	    namelist[i].n_name != NULL && *namelist[i].n_name != '\0'; i++)
		if (namelist[i].n_value == 0)
			mvprintw(2 + ++n, 10, "%s", namelist[i].n_name);
	move(CMDLINE, 0);
	clrtoeol();
	refresh();
	endwin();
	exit(1);
}

void
die(void)
{
	if (!rawmode)
		endwin();
	exit(0);
}


int
prefix(char *s1, char *s2)
{

	while (*s1 == *s2) {
		if (*s1 == '\0')
			return (1);
		s1++, s2++;
	}
	return (*s1 == '\0');
}

/* calculate number of users on the system */
int
ucount(void)
{
	int nusers = 0;
	struct	utmp utmp;

	if (ut < 0)
		return (0);
	lseek(ut, (off_t)0, SEEK_SET);
	while (read(ut, &utmp, sizeof(utmp)))
		if (utmp.ut_name[0] != '\0')
			nusers++;

	return (nusers);
}

/* main program functions */

void
usage(void)
{
	extern char *__progname;
	fprintf(stderr, "usage: %s [-aBbiNn] [-d count] "
	    "[-s delay] [-w width] [view] [delay]\n", __progname);
	exit(1);
}

void
show_view(void)
{
	if (rawmode)
		return;

	tb_start();
	tbprintf("%s %g", curr_view->name, naptime);
	tb_end();
	message_set(tmp_buf);
}

void
add_view_tb(field_view *v)
{
	if (curr_view == v)
		tbprintf("[%s] ", v->name);
	else
		tbprintf("%s ", v->name);
}

void
show_help(void)
{
	if (rawmode)
		return;

	tb_start();
	foreach_view(add_view_tb);
	tb_end();
	message_set(tmp_buf);
}

void
cmd_compat(const char *buf)
{
	const char *s;

	if (strcasecmp(buf, "help") == 0) {
		show_help();
		need_update = 1;
		return;
	}
	if (strcasecmp(buf, "quit") == 0 || strcasecmp(buf, "q") == 0) {
		gotsig_close = 1;
		return;
	}
	if (strcasecmp(buf, "stop") == 0) {
		paused = 1;
		gotsig_alarm = 1;
		return;
	}
	if (strncasecmp(buf, "start", 5) == 0) {
		paused = 0;
		gotsig_alarm = 1;
		cmd_delay(buf + 5);
		return;
	}

	for (s = buf; *s && strchr("0123456789+-.eE", *s) != NULL; s++)
		;
	if (*s) {
		if (set_view(buf))
			error("Invalid/ambiguous view: %s", buf);
	} else
		cmd_delay(buf);
}

void
cmd_delay(const char *buf)
{
	double del;
	del = atof(buf);

	if (del > 0) {
		udelay = (useconds_t)(del * 1000000);
		gotsig_alarm = 1;
		naptime = del;
	}
}

void
cmd_count(const char *buf)
{
	const char *errstr;

	maxprint = strtonum(buf, 1, lines - HEADER_LINES, &errstr);
	if (errstr)
		maxprint = lines - HEADER_LINES;
}


int
keyboard_callback(int ch)
{
	switch (ch) {
	case '?':
		/* FALLTHROUGH */
	case 'h':
		show_help();
		need_update = 1;
		break;
	case CTRL_G:
		show_view();
		need_update = 1;
		break;
	case 'l':
		command_set(&cm_count, NULL);
		break;
	case 's':
		command_set(&cm_delay, NULL);
		break;
	case ',':
		separate_thousands = !separate_thousands;
		gotsig_alarm = 1;
		break;
	case ':':
		command_set(&cm_compat, NULL);
		break;
	default:
		return 0;
	};

	return 1;
}

void
initialize(void)
{
	engine_initialize();

	initvmstat();
	initpigs();
	initifstat();
	initiostat();
	initsensors();
	initmembufs();
	initnetstat();
	initswap();
	initpftop();
	initpf();
	initpool();
	initmalloc();
	initnfs();
	initcpu();
}

void
gethz(void)
{
	struct clockinfo cinf;
	size_t  size = sizeof(cinf);
	int	mib[2];

	mib[0] = CTL_KERN;
	mib[1] = KERN_CLOCKRATE;
	if (sysctl(mib, 2, &cinf, &size, NULL, 0) == -1)
		return;
	stathz = cinf.stathz;
	hz = cinf.hz;
}

int
main(int argc, char *argv[])
{
	char errbuf[_POSIX2_LINE_MAX];
	const char *errstr;
	extern char *optarg;
	extern int optind;
	double delay = 5;

	char *viewstr = NULL;

	gid_t gid;
	int countmax = 0;
	int maxlines = 0;

	int ch;

	ut = open(_PATH_UTMP, O_RDONLY);
	if (ut < 0) {
		warn("No utmp");
	}

	kd = kvm_openfiles(NULL, NULL, NULL, KVM_NO_FILES, errbuf);

	gid = getgid();
	if (setresgid(gid, gid, gid) == -1)
		err(1, "setresgid");

	while ((ch = getopt(argc, argv, "BNabd:ins:w:")) != -1) {
		switch (ch) {
		case 'a':
			maxlines = -1;
			break;
		case 'B':
			averageonly = 1;
			if (countmax < 2)
				countmax = 2;
			/* FALLTHROUGH */
		case 'b':
			rawmode = 1;
			interactive = 0;
			break;
		case 'd':
			countmax = strtonum(optarg, 1, INT_MAX, &errstr);
			if (errstr)
				errx(1, "-d %s: %s", optarg, errstr);
			break;
		case 'i':
			interactive = 1;
			break;
		case 'N':
			nflag = 0;
			break;
		case 'n':
			/* this is a noop, -n is the default */
			nflag = 1;
			break;
		case 's':
			delay = atof(optarg);
			if (delay <= 0)
				delay = 5;
			break;
		case 'w':
			rawwidth = strtonum(optarg, 1, MAX_LINE_BUF-1, &errstr);
			if (errstr)
				errx(1, "-w %s: %s", optarg, errstr);
			break;
		default:
			usage();
			/* NOTREACHED */
		}
	}

	if (kd == NULL)
		warnx("kvm_openfiles: %s", errbuf);

	argc -= optind;
	argv += optind;

	if (argc == 1) {
		double del = atof(argv[0]);
		if (del == 0)
			viewstr = argv[0];
		else
			delay = del;
	} else if (argc == 2) {
		viewstr = argv[0];
		delay = atof(argv[1]);
		if (delay <= 0)
			delay = 5;
	}

	udelay = (useconds_t)(delay * 1000000.0);
	if (udelay < 1)
		udelay = 1;

	naptime = (double)udelay / 1000000.0;

	gethostname(hostname, sizeof (hostname));
	gethz();

	initialize();

	set_order(NULL);
	if (viewstr && set_view(viewstr)) {
		fprintf(stderr, "Unknown/ambiguous view name: %s\n", viewstr);
		return 1;
	}

	if (check_termcap()) {
		rawmode = 1;
		interactive = 0;
	}

	setup_term(maxlines);

	if (rawmode && countmax == 0)
		countmax = 1;

	gotsig_alarm = 1;

	engine_loop(countmax);

	return 0;
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $Id: main.c,v 1.66 2016/10/13 11:22:46 otto Exp $ */
2			/*
3			* Copyright (c) 2001, 2007 Can Erkin Acar
4			* Copyright (c) 2001 Daniel Hartmeier
5			* All rights reserved.
6			*
7			* Redistribution and use in source and binary forms, with or without
8			* modification, are permitted provided that the following conditions
9			* are met:
10			*
11			* - Redistributions of source code must retain the above copyright
12			* notice, this list of conditions and the following disclaimer.
13			* - Redistributions in binary form must reproduce the above
14			* copyright notice, this list of conditions and the following
15			* disclaimer in the documentation and/or other materials provided
16			* with the distribution.
17			*
18			* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19			* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20			* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
21			* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
22			* COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
23			* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
24			* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
25			* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
26			* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27			* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
28			* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29			* POSSIBILITY OF SUCH DAMAGE.
30			*
31			*/
32
33			#include <sys/types.h>
34			#include <sys/sysctl.h>
35
36
37			#include <ctype.h>
38			#include <curses.h>
39			#include <err.h>
40			#include <errno.h>
41			#include <fcntl.h>
42			#include <limits.h>
43			#include <netdb.h>
44			#include <signal.h>
45			#include <stdio.h>
46			#include <stdlib.h>
47			#include <string.h>
48			#include <stdarg.h>
49			#include <unistd.h>
50			#include <utmp.h>
51
52			#include "engine.h"
53			#include "systat.h"
54
55			#define TIMEPOS (80 - 8 - 20 - 1)
56
57			double dellave;
58
59			kvm_t *kd;
60			char *nlistf = NULL;
61			char *memf = NULL;
62			double avenrun[3];
63			double naptime = 5.0;
64			int verbose = 1; /* to report kvm read errs */
65			int nflag = 1;
66			int ut, hz, stathz;
67			char hostname[HOST_NAME_MAX+1];
68			WINDOW *wnd;
69			int CMDLINE;
70			char timebuf[26];
71			char uloadbuf[TIMEPOS];
72
73
74			int ucount(void);
75			void usage(void);
76
77			/* command prompt */
78
79			void cmd_delay(const char *);
80			void cmd_count(const char *);
81			void cmd_compat(const char *);
82
83			struct command cm_compat = {"Command", cmd_compat};
84			struct command cm_delay = {"Seconds to delay", cmd_delay};
85			struct command cm_count = {"Number of lines to display", cmd_count};
86
87
88			/* display functions */
89
90			int
91			print_header(void)
92			{
93			time_t now;
94			int start = dispstart + 1, end = dispstart + maxprint;
95			char tmpbuf[TIMEPOS];
96			char header[MAX_LINE_BUF];
97
98			if (end > num_disp)
99			end = num_disp;
100
101			tb_start();
102
103			if (!paused) {
104			char *ctim;
105
106			getloadavg(avenrun, sizeof(avenrun) / sizeof(avenrun[0]));
107
108			snprintf(uloadbuf, sizeof(uloadbuf),
109			"%4d users Load %.2f %.2f %.2f",
110			ucount(), avenrun[0], avenrun[1], avenrun[2]);
111
112			time(&now);
113			ctim = ctime(&now);
114			ctim[11+8] = '\0';
115			strlcpy(timebuf, ctim + 11, sizeof(timebuf));
116			}
117
118			if (num_disp && (start > 1 \|\| end != num_disp))
119			snprintf(tmpbuf, sizeof(tmpbuf),
120			"%s (%u-%u of %u) %s", uloadbuf, start, end, num_disp,
121			paused ? "PAUSED" : "");
122			else
123			snprintf(tmpbuf, sizeof(tmpbuf),
124			"%s %s", uloadbuf,
125			paused ? "PAUSED" : "");
126
127			snprintf(header, sizeof(header), "%-*s %19.19s %s", TIMEPOS - 1,
128			tmpbuf, hostname, timebuf);
129
130			if (rawmode)
131			printf("\n\n%s\n", header);
132			else
133			mvprintw(0, 0, "%s", header);
134
135			return (1);
136			}
137
138			/* compatibility functions, rearrange later */
139			void
140			error(const char *fmt, ...)
141			{
142			va_list ap;
143			char buf[MAX_LINE_BUF];
144
145			va_start(ap, fmt);
146			vsnprintf(buf, sizeof buf, fmt, ap);
147			va_end(ap);
148
149			message_set(buf);
150			}
151
152			void
153			nlisterr(struct nlist namelist[])
154			{
155			int i, n;
156
157			n = 0;
158			clear();
159			mvprintw(2, 10, "systat: nlist: can't find following symbols:");
160			for (i = 0;
161			namelist[i].n_name != NULL && *namelist[i].n_name != '\0'; i++)
162			if (namelist[i].n_value == 0)
163			mvprintw(2 + ++n, 10, "%s", namelist[i].n_name);
164			move(CMDLINE, 0);
165			clrtoeol();
166			refresh();
167			endwin();
168			exit(1);
169			}
170
171			void
172			die(void)
173			{
174			if (!rawmode)
175			endwin();
176			exit(0);
177			}
178
179
180			int
181			prefix(char s1, char s2)
182			{
183
184			while (s1 == s2) {
185			if (*s1 == '\0')
186			return (1);
187			s1++, s2++;
188			}
189			return (*s1 == '\0');
190			}
191
192			/* calculate number of users on the system */
193			int
194			ucount(void)
195			{
196			int nusers = 0;
197			struct utmp utmp;
198
199			if (ut < 0)
200			return (0);
201			lseek(ut, (off_t)0, SEEK_SET);
202			while (read(ut, &utmp, sizeof(utmp)))
203			if (utmp.ut_name[0] != '\0')
204			nusers++;
205
206			return (nusers);
207			}
208
209			/* main program functions */
210
211			void
212			usage(void)
213			{
214			extern char *__progname;
215			fprintf(stderr, "usage: %s [-aBbiNn] [-d count] "
216			"[-s delay] [-w width] [view] [delay]\n", __progname);
217			exit(1);
218			}
219
220			void
221			show_view(void)
222			{
223			if (rawmode)
224			return;
225
226			tb_start();
227			tbprintf("%s %g", curr_view->name, naptime);
228			tb_end();
229			message_set(tmp_buf);
230			}
231
232			void
233			add_view_tb(field_view *v)
234			{
235			if (curr_view == v)
236			tbprintf("[%s] ", v->name);
237			else
238			tbprintf("%s ", v->name);
239			}
240
241			void
242			show_help(void)
243			{
244			if (rawmode)
245			return;
246
247			tb_start();
248			foreach_view(add_view_tb);
249			tb_end();
250			message_set(tmp_buf);
251			}
252
253			void
254			cmd_compat(const char *buf)
255			{
256			const char *s;
257
258			if (strcasecmp(buf, "help") == 0) {
259			show_help();
260			need_update = 1;
261			return;
262			}
263			if (strcasecmp(buf, "quit") == 0 \|\| strcasecmp(buf, "q") == 0) {
264			gotsig_close = 1;
265			return;
266			}
267			if (strcasecmp(buf, "stop") == 0) {
268			paused = 1;
269			gotsig_alarm = 1;
270			return;
271			}
272			if (strncasecmp(buf, "start", 5) == 0) {
273			paused = 0;
274			gotsig_alarm = 1;
275			cmd_delay(buf + 5);
276			return;
277			}
278
279			for (s = buf; s && strchr("0123456789+-.eE", s) != NULL; s++)
280			;
281			if (*s) {
282			if (set_view(buf))
283			error("Invalid/ambiguous view: %s", buf);
284			} else
285			cmd_delay(buf);
286			}
287
288			void
289			cmd_delay(const char *buf)
290			{
291			double del;
292			del = atof(buf);
293
294			if (del > 0) {
295			udelay = (useconds_t)(del * 1000000);
296			gotsig_alarm = 1;
297			naptime = del;
298			}
299			}
300
301			void
302			cmd_count(const char *buf)
303			{
304			const char *errstr;
305
306			maxprint = strtonum(buf, 1, lines - HEADER_LINES, &errstr);
307			if (errstr)
308			maxprint = lines - HEADER_LINES;
309			}
310
311
312			int
313			keyboard_callback(int ch)
314			{
315			switch (ch) {
316			case '?':
317			/* FALLTHROUGH */
318			case 'h':
319			show_help();
320			need_update = 1;
321			break;
322			case CTRL_G:
323			show_view();
324			need_update = 1;
325			break;
326			case 'l':
327			command_set(&cm_count, NULL);
328			break;
329			case 's':
330			command_set(&cm_delay, NULL);
331			break;
332			case ',':
333			separate_thousands = !separate_thousands;
334			gotsig_alarm = 1;
335			break;
336			case ':':
337			command_set(&cm_compat, NULL);
338			break;
339			default:
340			return 0;
341			};
342
343			return 1;
344			}
345
346			void
347			initialize(void)
348			{
349			engine_initialize();
350
351			initvmstat();
352			initpigs();
353			initifstat();
354			initiostat();
355			initsensors();
356			initmembufs();
357			initnetstat();
358			initswap();
359			initpftop();
360			initpf();
361			initpool();
362			initmalloc();
363			initnfs();
364			initcpu();
365			}
366
367			void
368			gethz(void)
369			{
370			struct clockinfo cinf;
371			size_t size = sizeof(cinf);
372			int mib[2];
373
374			mib[0] = CTL_KERN;
375			mib[1] = KERN_CLOCKRATE;
376			if (sysctl(mib, 2, &cinf, &size, NULL, 0) == -1)
377			return;
378			stathz = cinf.stathz;
379			hz = cinf.hz;
380			}
381
382			int
383			main(int argc, char *argv[])
384			{
385			char errbuf[_POSIX2_LINE_MAX];
386			const char *errstr;
387			extern char *optarg;
388			extern int optind;
389			double delay = 5;
390
391			char *viewstr = NULL;
392
393			gid_t gid;
394			int countmax = 0;
395			int maxlines = 0;
396
397			int ch;
398
399			ut = open(_PATH_UTMP, O_RDONLY);
400			if (ut < 0) {
401			warn("No utmp");
402			}
403
404			kd = kvm_openfiles(NULL, NULL, NULL, KVM_NO_FILES, errbuf);
405
406			gid = getgid();
407			if (setresgid(gid, gid, gid) == -1)
408			err(1, "setresgid");
409
410			while ((ch = getopt(argc, argv, "BNabd:ins:w:")) != -1) {
411			switch (ch) {
412			case 'a':
413			maxlines = -1;
414			break;
415			case 'B':
416			averageonly = 1;
417			if (countmax < 2)
418			countmax = 2;
419			/* FALLTHROUGH */
420			case 'b':
421			rawmode = 1;
422			interactive = 0;
423			break;
424			case 'd':
425			countmax = strtonum(optarg, 1, INT_MAX, &errstr);
426			if (errstr)
427			errx(1, "-d %s: %s", optarg, errstr);
428			break;
429			case 'i':
430			interactive = 1;
431			break;
432			case 'N':
433			nflag = 0;
434			break;
435			case 'n':
436			/* this is a noop, -n is the default */
437			nflag = 1;
438			break;
439			case 's':
440			delay = atof(optarg);
441			if (delay <= 0)
442			delay = 5;
443			break;
444			case 'w':
445			rawwidth = strtonum(optarg, 1, MAX_LINE_BUF-1, &errstr);
446			if (errstr)
447			errx(1, "-w %s: %s", optarg, errstr);
448			break;
449			default:
450			usage();
451			/* NOTREACHED */
452			}
453			}
454
455			if (kd == NULL)
456			warnx("kvm_openfiles: %s", errbuf);
457
458			argc -= optind;
459			argv += optind;
460
461			if (argc == 1) {
462			double del = atof(argv[0]);
463			if (del == 0)
464			viewstr = argv[0];
465			else
466			delay = del;
467			} else if (argc == 2) {
468			viewstr = argv[0];
469			delay = atof(argv[1]);
470			if (delay <= 0)
471			delay = 5;
472			}
473
474			udelay = (useconds_t)(delay * 1000000.0);
475			if (udelay < 1)
476			udelay = 1;
477
478			naptime = (double)udelay / 1000000.0;
479
480			gethostname(hostname, sizeof (hostname));
481			gethz();
482
483			initialize();
484
485			set_order(NULL);
486			if (viewstr && set_view(viewstr)) {
487			fprintf(stderr, "Unknown/ambiguous view name: %s\n", viewstr);
488			return 1;
489			}
490
491			if (check_termcap()) {
492			rawmode = 1;
493			interactive = 0;
494			}
495
496			setup_term(maxlines);
497
498			if (rawmode && countmax == 0)
499			countmax = 1;
500
501			gotsig_alarm = 1;
502
503			engine_loop(countmax);
504
505			return 0;
506			}