xref: /freebsd/bin/ps/print.c (revision 39beb93c) 
1 /*-
2  * Copyright (c) 1990, 1993, 1994
3  *	The Regents of the University of California.  All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  * 4. Neither the name of the University nor the names of its contributors
14  *    may be used to endorse or promote products derived from this software
15  *    without specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  */
29 
30 #if 0
31 #ifndef lint
32 static char sccsid[] = "@(#)print.c	8.6 (Berkeley) 4/16/94";
33 #endif /* not lint */
34 #endif
35 
36 #include <sys/cdefs.h>
37 __FBSDID("$FreeBSD$");
38 
39 #include <sys/param.h>
40 #include <sys/time.h>
41 #include <sys/resource.h>
42 #include <sys/proc.h>
43 #include <sys/stat.h>
44 
45 #include <sys/mac.h>
46 #include <sys/user.h>
47 #include <sys/sysctl.h>
48 
49 #include <err.h>
50 #include <grp.h>
51 #include <langinfo.h>
52 #include <locale.h>
53 #include <math.h>
54 #include <nlist.h>
55 #include <pwd.h>
56 #include <stddef.h>
57 #include <stdio.h>
58 #include <stdlib.h>
59 #include <string.h>
60 #include <unistd.h>
61 #include <vis.h>
62 
63 #include "ps.h"
64 
65 #define	ps_pgtok(a)	(((a) * getpagesize()) / 1024)
66 
67 void
68 printheader(void)
69 {
70 	VAR *v;
71 	struct varent *vent;
72 
73 	STAILQ_FOREACH(vent, &varlist, next_ve)
74 		if (*vent->header != '\0')
75 			break;
76 	if (!vent)
77 		return;
78 
79 	STAILQ_FOREACH(vent, &varlist, next_ve) {
80 		v = vent->var;
81 		if (v->flag & LJUST) {
82 			if (STAILQ_NEXT(vent, next_ve) == NULL)	/* last one */
83 				(void)printf("%s", vent->header);
84 			else
85 				(void)printf("%-*s", v->width, vent->header);
86 		} else
87 			(void)printf("%*s", v->width, vent->header);
88 		if (STAILQ_NEXT(vent, next_ve) != NULL)
89 			(void)putchar(' ');
90 	}
91 	(void)putchar('\n');
92 }
93 
94 void
95 arguments(KINFO *k, VARENT *ve)
96 {
97 	VAR *v;
98 	int left;
99 	char *cp, *vis_args;
100 
101 	v = ve->var;
102 	if ((vis_args = malloc(strlen(k->ki_args) * 4 + 1)) == NULL)
103 		errx(1, "malloc failed");
104 	strvis(vis_args, k->ki_args, VIS_TAB | VIS_NL | VIS_NOSLASH);
105 	if (STAILQ_NEXT(ve, next_ve) == NULL) {
106 		/* last field */
107 		if (termwidth == UNLIMITED) {
108 			(void)printf("%s", vis_args);
109 		} else {
110 			left = termwidth - (totwidth - v->width);
111 			if (left < 1) /* already wrapped, just use std width */
112 				left = v->width;
113 			for (cp = vis_args; --left >= 0 && *cp != '\0';)
114 				(void)putchar(*cp++);
115 		}
116 	} else {
117 		(void)printf("%-*.*s", v->width, v->width, vis_args);
118 	}
119 	free(vis_args);
120 }
121 
122 void
123 command(KINFO *k, VARENT *ve)
124 {
125 	VAR *v;
126 	int left;
127 	char *cp, *vis_env, *vis_args;
128 
129 	v = ve->var;
130 	if (cflag) {
131 		/* If it is the last field, then don't pad */
132 		if (STAILQ_NEXT(ve, next_ve) == NULL) {
133 			(void)printf("%s", k->ki_p->ki_comm);
134 			if (showthreads && k->ki_p->ki_numthreads > 1)
135 				printf("/%s", k->ki_p->ki_ocomm);
136 		} else
137 			(void)printf("%-*s", v->width, k->ki_p->ki_comm);
138 		return;
139 	}
140 	if ((vis_args = malloc(strlen(k->ki_args) * 4 + 1)) == NULL)
141 		errx(1, "malloc failed");
142 	strvis(vis_args, k->ki_args, VIS_TAB | VIS_NL | VIS_NOSLASH);
143 	if (k->ki_env) {
144 		if ((vis_env = malloc(strlen(k->ki_env) * 4 + 1)) == NULL)
145 			errx(1, "malloc failed");
146 		strvis(vis_env, k->ki_env, VIS_TAB | VIS_NL | VIS_NOSLASH);
147 	} else
148 		vis_env = NULL;
149 
150 	if (STAILQ_NEXT(ve, next_ve) == NULL) {
151 		/* last field */
152 		if (termwidth == UNLIMITED) {
153 			if (vis_env)
154 				(void)printf("%s ", vis_env);
155 			(void)printf("%s", vis_args);
156 		} else {
157 			left = termwidth - (totwidth - v->width);
158 			if (left < 1) /* already wrapped, just use std width */
159 				left = v->width;
160 			if ((cp = vis_env) != NULL) {
161 				while (--left >= 0 && *cp)
162 					(void)putchar(*cp++);
163 				if (--left >= 0)
164 					putchar(' ');
165 			}
166 			for (cp = vis_args; --left >= 0 && *cp != '\0';)
167 				(void)putchar(*cp++);
168 		}
169 	} else
170 		/* XXX env? */
171 		(void)printf("%-*.*s", v->width, v->width, vis_args);
172 	free(vis_args);
173 	if (vis_env != NULL)
174 		free(vis_env);
175 }
176 
177 void
178 ucomm(KINFO *k, VARENT *ve)
179 {
180 	char tmpbuff[COMMLEN + OCOMMLEN + 2];
181 	VAR *v;
182 
183 	v = ve->var;
184 	if (STAILQ_NEXT(ve, next_ve) == NULL) {	/* last field, don't pad */
185 		(void)printf("%s", k->ki_p->ki_comm);
186 		if (showthreads && k->ki_p->ki_numthreads > 1)
187 			printf("/%s", k->ki_p->ki_ocomm);
188 	} else {
189 		bzero(tmpbuff, sizeof(tmpbuff));
190 		if (showthreads && k->ki_p->ki_numthreads > 1)
191 			sprintf(tmpbuff, "%s/%s", k->ki_p->ki_comm,
192 			    k->ki_p->ki_ocomm);
193 		else
194 			sprintf(tmpbuff, "%s", k->ki_p->ki_comm);
195 		(void)printf("%-*s", v->width, tmpbuff);
196 	}
197 }
198 
199 void
200 tdnam(KINFO *k, VARENT *ve)
201 {
202 	VAR *v;
203 
204 	v = ve->var;
205 	if (showthreads && k->ki_p->ki_numthreads > 1)
206 		(void)printf("%-*s", v->width, k->ki_p->ki_ocomm);
207 	else
208 		(void)printf("%-*s", v->width, "      ");
209 }
210 
211 void
212 logname(KINFO *k, VARENT *ve)
213 {
214 	VAR *v;
215 	char *s;
216 
217 	v = ve->var;
218 	(void)printf("%-*s", v->width, (s = k->ki_p->ki_login, *s) ? s : "-");
219 }
220 
221 void
222 state(KINFO *k, VARENT *ve)
223 {
224 	int flag, tdflags;
225 	char *cp;
226 	VAR *v;
227 	char buf[16];
228 
229 	v = ve->var;
230 	flag = k->ki_p->ki_flag;
231 	tdflags = k->ki_p->ki_tdflags;	/* XXXKSE */
232 	cp = buf;
233 
234 	switch (k->ki_p->ki_stat) {
235 
236 	case SSTOP:
237 		*cp = 'T';
238 		break;
239 
240 	case SSLEEP:
241 		if (tdflags & TDF_SINTR)	/* interruptable (long) */
242 			*cp = k->ki_p->ki_slptime >= MAXSLP ? 'I' : 'S';
243 		else
244 			*cp = 'D';
245 		break;
246 
247 	case SRUN:
248 	case SIDL:
249 		*cp = 'R';
250 		break;
251 
252 	case SWAIT:
253 		*cp = 'W';
254 		break;
255 
256 	case SLOCK:
257 		*cp = 'L';
258 		break;
259 
260 	case SZOMB:
261 		*cp = 'Z';
262 		break;
263 
264 	default:
265 		*cp = '?';
266 	}
267 	cp++;
268 	if (!(flag & P_INMEM))
269 		*cp++ = 'W';
270 	if (k->ki_p->ki_nice < NZERO)
271 		*cp++ = '<';
272 	else if (k->ki_p->ki_nice > NZERO)
273 		*cp++ = 'N';
274 	if (flag & P_TRACED)
275 		*cp++ = 'X';
276 	if (flag & P_WEXIT && k->ki_p->ki_stat != SZOMB)
277 		*cp++ = 'E';
278 	if (flag & P_PPWAIT)
279 		*cp++ = 'V';
280 	if ((flag & P_SYSTEM) || k->ki_p->ki_lock > 0)
281 		*cp++ = 'L';
282 	if (k->ki_p->ki_kiflag & KI_SLEADER)
283 		*cp++ = 's';
284 	if ((flag & P_CONTROLT) && k->ki_p->ki_pgid == k->ki_p->ki_tpgid)
285 		*cp++ = '+';
286 	if (flag & P_JAILED)
287 		*cp++ = 'J';
288 	*cp = '\0';
289 	(void)printf("%-*s", v->width, buf);
290 }
291 
292 #define	scalepri(x)	((x) - PZERO)
293 
294 void
295 pri(KINFO *k, VARENT *ve)
296 {
297 	VAR *v;
298 
299 	v = ve->var;
300 	(void)printf("%*d", v->width, scalepri(k->ki_p->ki_pri.pri_level));
301 }
302 
303 void
304 upr(KINFO *k, VARENT *ve)
305 {
306 	VAR *v;
307 
308 	v = ve->var;
309 	(void)printf("%*d", v->width, scalepri(k->ki_p->ki_pri.pri_user));
310 }
311 #undef scalepri
312 
313 void
314 uname(KINFO *k, VARENT *ve)
315 {
316 	VAR *v;
317 
318 	v = ve->var;
319 	(void)printf("%-*s", v->width, user_from_uid(k->ki_p->ki_uid, 0));
320 }
321 
322 int
323 s_uname(KINFO *k)
324 {
325 	return (strlen(user_from_uid(k->ki_p->ki_uid, 0)));
326 }
327 
328 void
329 rgroupname(KINFO *k, VARENT *ve)
330 {
331 	VAR *v;
332 
333 	v = ve->var;
334 	(void)printf("%-*s", v->width, group_from_gid(k->ki_p->ki_rgid, 0));
335 }
336 
337 int
338 s_rgroupname(KINFO *k)
339 {
340 	return (strlen(group_from_gid(k->ki_p->ki_rgid, 0)));
341 }
342 
343 void
344 runame(KINFO *k, VARENT *ve)
345 {
346 	VAR *v;
347 
348 	v = ve->var;
349 	(void)printf("%-*s", v->width, user_from_uid(k->ki_p->ki_ruid, 0));
350 }
351 
352 int
353 s_runame(KINFO *k)
354 {
355 	return (strlen(user_from_uid(k->ki_p->ki_ruid, 0)));
356 }
357 
358 
359 void
360 tdev(KINFO *k, VARENT *ve)
361 {
362 	VAR *v;
363 	dev_t dev;
364 	char buff[16];
365 
366 	v = ve->var;
367 	dev = k->ki_p->ki_tdev;
368 	if (dev == NODEV)
369 		(void)printf("%*s", v->width, "??");
370 	else {
371 		(void)snprintf(buff, sizeof(buff),
372 		    "%d/%d", major(dev), minor(dev));
373 		(void)printf("%*s", v->width, buff);
374 	}
375 }
376 
377 void
378 tname(KINFO *k, VARENT *ve)
379 {
380 	VAR *v;
381 	dev_t dev;
382 	char *ttname;
383 
384 	v = ve->var;
385 	dev = k->ki_p->ki_tdev;
386 	if (dev == NODEV || (ttname = devname(dev, S_IFCHR)) == NULL)
387 		(void)printf("%*s ", v->width - 1, "??");
388 	else {
389 		if (strncmp(ttname, "tty", 3) == 0 ||
390 		    strncmp(ttname, "cua", 3) == 0)
391 			ttname += 3;
392 		if (strncmp(ttname, "pts/", 4) == 0)
393 			ttname += 4;
394 		(void)printf("%*.*s%c", v->width - 1, v->width - 1, ttname,
395 		    k->ki_p->ki_kiflag & KI_CTTY ? ' ' : '-');
396 	}
397 }
398 
399 void
400 longtname(KINFO *k, VARENT *ve)
401 {
402 	VAR *v;
403 	dev_t dev;
404 	char *ttname;
405 
406 	v = ve->var;
407 	dev = k->ki_p->ki_tdev;
408 	if (dev == NODEV || (ttname = devname(dev, S_IFCHR)) == NULL)
409 		(void)printf("%-*s", v->width, "??");
410 	else
411 		(void)printf("%-*s", v->width, ttname);
412 }
413 
414 void
415 started(KINFO *k, VARENT *ve)
416 {
417 	VAR *v;
418 	time_t then;
419 	struct tm *tp;
420 	static int use_ampm = -1;
421 	char buf[100];
422 
423 	v = ve->var;
424 	if (!k->ki_valid) {
425 		(void)printf("%-*s", v->width, "-");
426 		return;
427 	}
428 	if (use_ampm < 0)
429 		use_ampm = (*nl_langinfo(T_FMT_AMPM) != '\0');
430 	then = k->ki_p->ki_start.tv_sec;
431 	tp = localtime(&then);
432 	if (now - k->ki_p->ki_start.tv_sec < 24 * 3600) {
433 		(void)strftime(buf, sizeof(buf),
434 		    use_ampm ? "%l:%M%p" : "%k:%M  ", tp);
435 	} else if (now - k->ki_p->ki_start.tv_sec < 7 * 86400) {
436 		(void)strftime(buf, sizeof(buf),
437 		    use_ampm ? "%a%I%p" : "%a%H  ", tp);
438 	} else
439 		(void)strftime(buf, sizeof(buf), "%e%b%y", tp);
440 	(void)printf("%-*s", v->width, buf);
441 }
442 
443 void
444 lstarted(KINFO *k, VARENT *ve)
445 {
446 	VAR *v;
447 	time_t then;
448 	char buf[100];
449 
450 	v = ve->var;
451 	if (!k->ki_valid) {
452 		(void)printf("%-*s", v->width, "-");
453 		return;
454 	}
455 	then = k->ki_p->ki_start.tv_sec;
456 	(void)strftime(buf, sizeof(buf), "%c", localtime(&then));
457 	(void)printf("%-*s", v->width, buf);
458 }
459 
460 void
461 lockname(KINFO *k, VARENT *ve)
462 {
463 	VAR *v;
464 
465 	v = ve->var;
466 	if (k->ki_p->ki_kiflag & KI_LOCKBLOCK) {
467 		if (k->ki_p->ki_lockname[0] != 0)
468 			(void)printf("%-*.*s", v->width, v->width,
469 			    k->ki_p->ki_lockname);
470 		else
471 			(void)printf("%-*s", v->width, "???");
472 	} else
473 		(void)printf("%-*s", v->width, "-");
474 }
475 
476 void
477 wchan(KINFO *k, VARENT *ve)
478 {
479 	VAR *v;
480 
481 	v = ve->var;
482 	if (k->ki_p->ki_wchan) {
483 		if (k->ki_p->ki_wmesg[0] != 0)
484 			(void)printf("%-*.*s", v->width, v->width,
485 			    k->ki_p->ki_wmesg);
486 		else
487 			(void)printf("%-*lx", v->width,
488 			    (long)k->ki_p->ki_wchan);
489 	} else
490 		(void)printf("%-*s", v->width, "-");
491 }
492 
493 void
494 nwchan(KINFO *k, VARENT *ve)
495 {
496 	VAR *v;
497 
498 	v = ve->var;
499 	if (k->ki_p->ki_wchan) {
500 		(void)printf("%0*lx", v->width,
501 		    (long)k->ki_p->ki_wchan);
502 	} else
503 		(void)printf("%-*s", v->width, "-");
504 }
505 
506 void
507 mwchan(KINFO *k, VARENT *ve)
508 {
509 	VAR *v;
510 
511 	v = ve->var;
512 	if (k->ki_p->ki_wchan) {
513 		if (k->ki_p->ki_wmesg[0] != 0)
514 			(void)printf("%-*.*s", v->width, v->width,
515 			    k->ki_p->ki_wmesg);
516 		else
517 			(void)printf("%-*lx", v->width,
518 			    (long)k->ki_p->ki_wchan);
519 	} else if (k->ki_p->ki_kiflag & KI_LOCKBLOCK) {
520 		if (k->ki_p->ki_lockname[0]) {
521 			(void)printf("%-*.*s", v->width, v->width,
522 			    k->ki_p->ki_lockname);
523 		} else
524 			(void)printf("%-*s", v->width, "???");
525 	} else
526 		(void)printf("%-*s", v->width, "-");
527 }
528 
529 void
530 vsize(KINFO *k, VARENT *ve)
531 {
532 	VAR *v;
533 
534 	v = ve->var;
535 	(void)printf("%*lu", v->width, (u_long)(k->ki_p->ki_size / 1024));
536 }
537 
538 void
539 cputime(KINFO *k, VARENT *ve)
540 {
541 	VAR *v;
542 	long secs;
543 	long psecs;	/* "parts" of a second. first micro, then centi */
544 	char obuff[128];
545 	static char decimal_point;
546 
547 	if (decimal_point == '\0')
548 		decimal_point = localeconv()->decimal_point[0];
549 	v = ve->var;
550 	if (!k->ki_valid) {
551 		secs = 0;
552 		psecs = 0;
553 	} else {
554 		/*
555 		 * This counts time spent handling interrupts.  We could
556 		 * fix this, but it is not 100% trivial (and interrupt
557 		 * time fractions only work on the sparc anyway).	XXX
558 		 */
559 		secs = k->ki_p->ki_runtime / 1000000;
560 		psecs = k->ki_p->ki_runtime % 1000000;
561 		if (sumrusage) {
562 			secs += k->ki_p->ki_childtime.tv_sec;
563 			psecs += k->ki_p->ki_childtime.tv_usec;
564 		}
565 		/*
566 		 * round and scale to 100's
567 		 */
568 		psecs = (psecs + 5000) / 10000;
569 		secs += psecs / 100;
570 		psecs = psecs % 100;
571 	}
572 	(void)snprintf(obuff, sizeof(obuff), "%3ld:%02ld%c%02ld",
573 	    secs / 60, secs % 60, decimal_point, psecs);
574 	(void)printf("%*s", v->width, obuff);
575 }
576 
577 void
578 elapsed(KINFO *k, VARENT *ve)
579 {
580 	VAR *v;
581 	time_t val;
582 	int days, hours, mins, secs;
583 	char obuff[128];
584 
585 	v = ve->var;
586 	val = now - k->ki_p->ki_start.tv_sec;
587 	days = val / (24 * 60 * 60);
588 	val %= 24 * 60 * 60;
589 	hours = val / (60 * 60);
590 	val %= 60 * 60;
591 	mins = val / 60;
592 	secs = val % 60;
593 	if (days != 0)
594 		(void)snprintf(obuff, sizeof(obuff), "%3d-%02d:%02d:%02d",
595 		    days, hours, mins, secs);
596 	else if (hours != 0)
597 		(void)snprintf(obuff, sizeof(obuff), "%02d:%02d:%02d",
598 		    hours, mins, secs);
599 	else
600 		(void)snprintf(obuff, sizeof(obuff), "%02d:%02d", mins, secs);
601 	(void)printf("%*s", v->width, obuff);
602 }
603 
604 double
605 getpcpu(const KINFO *k)
606 {
607 	static int failure;
608 
609 	if (!nlistread)
610 		failure = donlist();
611 	if (failure)
612 		return (0.0);
613 
614 #define	fxtofl(fixpt)	((double)(fixpt) / fscale)
615 
616 	/* XXX - I don't like this */
617 	if (k->ki_p->ki_swtime == 0 || (k->ki_p->ki_flag & P_INMEM) == 0)
618 		return (0.0);
619 	if (rawcpu)
620 		return (100.0 * fxtofl(k->ki_p->ki_pctcpu));
621 	return (100.0 * fxtofl(k->ki_p->ki_pctcpu) /
622 		(1.0 - exp(k->ki_p->ki_swtime * log(fxtofl(ccpu)))));
623 }
624 
625 void
626 pcpu(KINFO *k, VARENT *ve)
627 {
628 	VAR *v;
629 
630 	v = ve->var;
631 	(void)printf("%*.1f", v->width, getpcpu(k));
632 }
633 
634 static double
635 getpmem(KINFO *k)
636 {
637 	static int failure;
638 	double fracmem;
639 
640 	if (!nlistread)
641 		failure = donlist();
642 	if (failure)
643 		return (0.0);
644 
645 	if ((k->ki_p->ki_flag & P_INMEM) == 0)
646 		return (0.0);
647 	/* XXX want pmap ptpages, segtab, etc. (per architecture) */
648 	/* XXX don't have info about shared */
649 	fracmem = ((float)k->ki_p->ki_rssize) / mempages;
650 	return (100.0 * fracmem);
651 }
652 
653 void
654 pmem(KINFO *k, VARENT *ve)
655 {
656 	VAR *v;
657 
658 	v = ve->var;
659 	(void)printf("%*.1f", v->width, getpmem(k));
660 }
661 
662 void
663 pagein(KINFO *k, VARENT *ve)
664 {
665 	VAR *v;
666 
667 	v = ve->var;
668 	(void)printf("%*ld", v->width,
669 	    k->ki_valid ? k->ki_p->ki_rusage.ru_majflt : 0);
670 }
671 
672 /* ARGSUSED */
673 void
674 maxrss(KINFO *k __unused, VARENT *ve)
675 {
676 	VAR *v;
677 
678 	v = ve->var;
679 	/* XXX not yet */
680 	(void)printf("%*s", v->width, "-");
681 }
682 
683 void
684 priorityr(KINFO *k, VARENT *ve)
685 {
686 	VAR *v;
687 	struct priority *lpri;
688 	char str[8];
689 	unsigned class, level;
690 
691 	v = ve->var;
692 	lpri = &k->ki_p->ki_pri;
693 	class = lpri->pri_class;
694 	level = lpri->pri_level;
695 	switch (class) {
696 	case PRI_ITHD:
697 		snprintf(str, sizeof(str), "intr:%u", level);
698 		break;
699 	case PRI_REALTIME:
700 		snprintf(str, sizeof(str), "real:%u", level);
701 		break;
702 	case PRI_TIMESHARE:
703 		strncpy(str, "normal", sizeof(str));
704 		break;
705 	case PRI_IDLE:
706 		snprintf(str, sizeof(str), "idle:%u", level);
707 		break;
708 	default:
709 		snprintf(str, sizeof(str), "%u:%u", class, level);
710 		break;
711 	}
712 	str[sizeof(str) - 1] = '\0';
713 	(void)printf("%*s", v->width, str);
714 }
715 
716 /*
717  * Generic output routines.  Print fields from various prototype
718  * structures.
719  */
720 static void
721 printval(void *bp, VAR *v)
722 {
723 	static char ofmt[32] = "%";
724 	const char *fcp;
725 	char *cp;
726 
727 	cp = ofmt + 1;
728 	fcp = v->fmt;
729 	if (v->flag & LJUST)
730 		*cp++ = '-';
731 	*cp++ = '*';
732 	while ((*cp++ = *fcp++));
733 
734 #define	CHKINF127(n)	(((n) > 127) && (v->flag & INF127) ? 127 : (n))
735 
736 	switch (v->type) {
737 	case CHAR:
738 		(void)printf(ofmt, v->width, *(char *)bp);
739 		break;
740 	case UCHAR:
741 		(void)printf(ofmt, v->width, *(u_char *)bp);
742 		break;
743 	case SHORT:
744 		(void)printf(ofmt, v->width, *(short *)bp);
745 		break;
746 	case USHORT:
747 		(void)printf(ofmt, v->width, *(u_short *)bp);
748 		break;
749 	case INT:
750 		(void)printf(ofmt, v->width, *(int *)bp);
751 		break;
752 	case UINT:
753 		(void)printf(ofmt, v->width, CHKINF127(*(u_int *)bp));
754 		break;
755 	case LONG:
756 		(void)printf(ofmt, v->width, *(long *)bp);
757 		break;
758 	case ULONG:
759 		(void)printf(ofmt, v->width, *(u_long *)bp);
760 		break;
761 	case KPTR:
762 		(void)printf(ofmt, v->width, *(u_long *)bp);
763 		break;
764 	case PGTOK:
765 		(void)printf(ofmt, v->width, ps_pgtok(*(u_long *)bp));
766 		break;
767 	default:
768 		errx(1, "unknown type %d", v->type);
769 	}
770 }
771 
772 void
773 kvar(KINFO *k, VARENT *ve)
774 {
775 	VAR *v;
776 
777 	v = ve->var;
778 	printval((char *)((char *)k->ki_p + v->off), v);
779 }
780 
781 void
782 rvar(KINFO *k, VARENT *ve)
783 {
784 	VAR *v;
785 
786 	v = ve->var;
787 	if (k->ki_valid)
788 		printval((char *)((char *)(&k->ki_p->ki_rusage) + v->off), v);
789 	else
790 		(void)printf("%*s", v->width, "-");
791 }
792 
793 void
794 emulname(KINFO *k, VARENT *ve)
795 {
796 	VAR *v;
797 
798 	v = ve->var;
799 	printf("%-*s", v->width, *k->ki_p->ki_emul ? k->ki_p->ki_emul : "-");
800 }
801 
802 void
803 label(KINFO *k, VARENT *ve)
804 {
805 	char *string;
806 	VAR *v;
807 	mac_t proclabel;
808 	int error;
809 
810 	v = ve->var;
811 	string = NULL;
812 	if (mac_prepare_process_label(&proclabel) == -1) {
813 		warn("mac_prepare_process_label");
814 		goto out;
815 	}
816 	error = mac_get_pid(k->ki_p->ki_pid, proclabel);
817 	if (error == 0) {
818 		if (mac_to_text(proclabel, &string) == -1)
819 			string = NULL;
820 	}
821 	mac_free(proclabel);
822 out:
823 	if (string != NULL) {
824 		(void)printf("%-*s", v->width, string);
825 		free(string);
826 	} else
827 		(void)printf("%-*s", v->width, "  -");
828 	return;
829 }
830 
831 int
832 s_comm(KINFO *k)
833 {
834 	char tmpbuff[COMMLEN + OCOMMLEN + 2];
835 
836 	bzero(tmpbuff, sizeof(tmpbuff));
837 	if (showthreads && k->ki_p->ki_numthreads > 1)
838 		sprintf(tmpbuff, "%s/%s", k->ki_p->ki_comm,
839 		    k->ki_p->ki_ocomm);
840 	else
841 		sprintf(tmpbuff, "%s", k->ki_p->ki_comm);
842 	return (strlen(tmpbuff));
843 }
844 
845 int
846 s_label(KINFO *k)
847 {
848 	char *string = NULL;
849 	mac_t proclabel;
850 	int error, size = 0;
851 
852 	if (mac_prepare_process_label(&proclabel) == -1) {
853 		warn("mac_prepare_process_label");
854 		return (0);
855 	}
856 	error = mac_get_pid(k->ki_p->ki_pid, proclabel);
857 	if (error == 0 && mac_to_text(proclabel, &string) == 0) {
858 		size = strlen(string);
859 		free(string);
860 	}
861 	mac_free(proclabel);
862 	return (size);
863 }
864