print.c revision 132433 
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
32static 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: head/bin/ps/print.c 132433 2004-07-20 05:52:00Z tjr $");
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
67void
68printheader(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
94void
95arguments(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
122void
123command(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		else
135			(void)printf("%-*s", v->width, k->ki_p->ki_comm);
136		return;
137	}
138	if ((vis_args = malloc(strlen(k->ki_args) * 4 + 1)) == NULL)
139		errx(1, "malloc failed");
140	strvis(vis_args, k->ki_args, VIS_TAB | VIS_NL | VIS_NOSLASH);
141	if (k->ki_env) {
142		if ((vis_env = malloc(strlen(k->ki_env) * 4 + 1)) == NULL)
143			errx(1, "malloc failed");
144		strvis(vis_env, k->ki_env, VIS_TAB | VIS_NL | VIS_NOSLASH);
145	} else
146		vis_env = NULL;
147
148	if (STAILQ_NEXT(ve, next_ve) == NULL) {
149		/* last field */
150		if (termwidth == UNLIMITED) {
151			if (vis_env)
152				(void)printf("%s ", vis_env);
153			(void)printf("%s", vis_args);
154		} else {
155			left = termwidth - (totwidth - v->width);
156			if (left < 1) /* already wrapped, just use std width */
157				left = v->width;
158			if ((cp = vis_env) != NULL) {
159				while (--left >= 0 && *cp)
160					(void)putchar(*cp++);
161				if (--left >= 0)
162					putchar(' ');
163			}
164			for (cp = vis_args; --left >= 0 && *cp != '\0';)
165				(void)putchar(*cp++);
166		}
167	} else
168		/* XXX env? */
169		(void)printf("%-*.*s", v->width, v->width, vis_args);
170	free(vis_args);
171	if (vis_env != NULL)
172		free(vis_env);
173}
174
175void
176ucomm(KINFO *k, VARENT *ve)
177{
178	VAR *v;
179
180	v = ve->var;
181	if (STAILQ_NEXT(ve, next_ve) == NULL)	/* last field, don't pad */
182		(void)printf("%s", k->ki_p->ki_comm);
183	else
184		(void)printf("%-*s", v->width, k->ki_p->ki_comm);
185}
186
187void
188logname(KINFO *k, VARENT *ve)
189{
190	VAR *v;
191	char *s;
192
193	v = ve->var;
194	(void)printf("%-*s", v->width, (s = k->ki_p->ki_login, *s) ? s : "-");
195}
196
197void
198state(KINFO *k, VARENT *ve)
199{
200	int flag, sflag, tdflags;
201	char *cp;
202	VAR *v;
203	char buf[16];
204
205	v = ve->var;
206	flag = k->ki_p->ki_flag;
207	sflag = k->ki_p->ki_sflag;
208	tdflags = k->ki_p->ki_tdflags;	/* XXXKSE */
209	cp = buf;
210
211	switch (k->ki_p->ki_stat) {
212
213	case SSTOP:
214		*cp = 'T';
215		break;
216
217	case SSLEEP:
218		if (tdflags & TDF_SINTR)	/* interruptable (long) */
219			*cp = k->ki_p->ki_slptime >= MAXSLP ? 'I' : 'S';
220		else
221			*cp = 'D';
222		break;
223
224	case SRUN:
225	case SIDL:
226		*cp = 'R';
227		break;
228
229	case SWAIT:
230		*cp = 'W';
231		break;
232
233	case SLOCK:
234		*cp = 'L';
235		break;
236
237	case SZOMB:
238		*cp = 'Z';
239		break;
240
241	default:
242		*cp = '?';
243	}
244	cp++;
245	if (!(sflag & PS_INMEM))
246		*cp++ = 'W';
247	if (k->ki_p->ki_nice < NZERO)
248		*cp++ = '<';
249	else if (k->ki_p->ki_nice > NZERO)
250		*cp++ = 'N';
251	if (flag & P_TRACED)
252		*cp++ = 'X';
253	if (flag & P_WEXIT && k->ki_p->ki_stat != SZOMB)
254		*cp++ = 'E';
255	if (flag & P_PPWAIT)
256		*cp++ = 'V';
257	if ((flag & P_SYSTEM) || k->ki_p->ki_lock > 0)
258		*cp++ = 'L';
259	if (k->ki_p->ki_kiflag & KI_SLEADER)
260		*cp++ = 's';
261	if ((flag & P_CONTROLT) && k->ki_p->ki_pgid == k->ki_p->ki_tpgid)
262		*cp++ = '+';
263	if (flag & P_JAILED)
264		*cp++ = 'J';
265	*cp = '\0';
266	(void)printf("%-*s", v->width, buf);
267}
268
269#define	scalepri(x)	((x) - PZERO)
270
271void
272pri(KINFO *k, VARENT *ve)
273{
274	VAR *v;
275
276	v = ve->var;
277	(void)printf("%*d", v->width, scalepri(k->ki_p->ki_pri.pri_level));
278}
279
280void
281upr(KINFO *k, VARENT *ve)
282{
283	VAR *v;
284
285	v = ve->var;
286	(void)printf("%*d", v->width, scalepri(k->ki_p->ki_pri.pri_user));
287}
288#undef scalepri
289
290void
291uname(KINFO *k, VARENT *ve)
292{
293	VAR *v;
294
295	v = ve->var;
296	(void)printf("%-*s", v->width, user_from_uid(k->ki_p->ki_uid, 0));
297}
298
299int
300s_uname(KINFO *k)
301{
302	return (strlen(user_from_uid(k->ki_p->ki_uid, 0)));
303}
304
305void
306rgroupname(KINFO *k, VARENT *ve)
307{
308	VAR *v;
309
310	v = ve->var;
311	(void)printf("%-*s", v->width, group_from_gid(k->ki_p->ki_rgid, 0));
312}
313
314int
315s_rgroupname(KINFO *k)
316{
317	return (strlen(group_from_gid(k->ki_p->ki_rgid, 0)));
318}
319
320void
321runame(KINFO *k, VARENT *ve)
322{
323	VAR *v;
324
325	v = ve->var;
326	(void)printf("%-*s", v->width, user_from_uid(k->ki_p->ki_ruid, 0));
327}
328
329int
330s_runame(KINFO *k)
331{
332	return (strlen(user_from_uid(k->ki_p->ki_ruid, 0)));
333}
334
335
336void
337tdev(KINFO *k, VARENT *ve)
338{
339	VAR *v;
340	dev_t dev;
341	char buff[16];
342
343	v = ve->var;
344	dev = k->ki_p->ki_tdev;
345	if (dev == NODEV)
346		(void)printf("%*s", v->width, "??");
347	else {
348		(void)snprintf(buff, sizeof(buff),
349		    "%d/%d", major(dev), minor(dev));
350		(void)printf("%*s", v->width, buff);
351	}
352}
353
354void
355tname(KINFO *k, VARENT *ve)
356{
357	VAR *v;
358	dev_t dev;
359	char *ttname;
360
361	v = ve->var;
362	dev = k->ki_p->ki_tdev;
363	if (dev == NODEV || (ttname = devname(dev, S_IFCHR)) == NULL)
364		(void)printf("%*s ", v->width - 1, "??");
365	else {
366		if (strncmp(ttname, "tty", 3) == 0 ||
367		    strncmp(ttname, "cua", 3) == 0)
368			ttname += 3;
369		(void)printf("%*.*s%c", v->width - 1, v->width - 1, ttname,
370		    k->ki_p->ki_kiflag & KI_CTTY ? ' ' : '-');
371	}
372}
373
374void
375longtname(KINFO *k, VARENT *ve)
376{
377	VAR *v;
378	dev_t dev;
379	char *ttname;
380
381	v = ve->var;
382	dev = k->ki_p->ki_tdev;
383	if (dev == NODEV || (ttname = devname(dev, S_IFCHR)) == NULL)
384		(void)printf("%-*s", v->width, "??");
385	else
386		(void)printf("%-*s", v->width, ttname);
387}
388
389void
390started(KINFO *k, VARENT *ve)
391{
392	VAR *v;
393	time_t then;
394	struct tm *tp;
395	static int use_ampm = -1;
396	char buf[100];
397
398	v = ve->var;
399	if (!k->ki_valid) {
400		(void)printf("%-*s", v->width, "-");
401		return;
402	}
403	if (use_ampm < 0)
404		use_ampm = (*nl_langinfo(T_FMT_AMPM) != '\0');
405	then = k->ki_p->ki_start.tv_sec;
406	tp = localtime(&then);
407	if (now - k->ki_p->ki_start.tv_sec < 24 * 3600) {
408		(void)strftime(buf, sizeof(buf),
409		    use_ampm ? "%l:%M%p" : "%k:%M  ", tp);
410	} else if (now - k->ki_p->ki_start.tv_sec < 7 * 86400) {
411		(void)strftime(buf, sizeof(buf),
412		    use_ampm ? "%a%I%p" : "%a%H  ", tp);
413	} else
414		(void)strftime(buf, sizeof(buf), "%e%b%y", tp);
415	(void)printf("%-*s", v->width, buf);
416}
417
418void
419lstarted(KINFO *k, VARENT *ve)
420{
421	VAR *v;
422	time_t then;
423	char buf[100];
424
425	v = ve->var;
426	if (!k->ki_valid) {
427		(void)printf("%-*s", v->width, "-");
428		return;
429	}
430	then = k->ki_p->ki_start.tv_sec;
431	(void)strftime(buf, sizeof(buf), "%c", localtime(&then));
432	(void)printf("%-*s", v->width, buf);
433}
434
435void
436lockname(KINFO *k, VARENT *ve)
437{
438	VAR *v;
439
440	v = ve->var;
441	if (k->ki_p->ki_kiflag & KI_LOCKBLOCK) {
442		if (k->ki_p->ki_lockname[0] != 0)
443			(void)printf("%-*.*s", v->width, v->width,
444			    k->ki_p->ki_lockname);
445		else
446			(void)printf("%-*s", v->width, "???");
447	} else
448		(void)printf("%-*s", v->width, "-");
449}
450
451void
452wchan(KINFO *k, VARENT *ve)
453{
454	VAR *v;
455
456	v = ve->var;
457	if (k->ki_p->ki_wchan) {
458		if (k->ki_p->ki_wmesg[0] != 0)
459			(void)printf("%-*.*s", v->width, v->width,
460			    k->ki_p->ki_wmesg);
461		else
462			(void)printf("%-*lx", v->width,
463			    (long)k->ki_p->ki_wchan);
464	} else
465		(void)printf("%-*s", v->width, "-");
466}
467
468void
469nwchan(KINFO *k, VARENT *ve)
470{
471	VAR *v;
472
473	v = ve->var;
474	if (k->ki_p->ki_wchan) {
475		(void)printf("%0*lx", v->width,
476		    (long)k->ki_p->ki_wchan);
477	} else
478		(void)printf("%-*s", v->width, "-");
479}
480
481void
482mwchan(KINFO *k, VARENT *ve)
483{
484	VAR *v;
485
486	v = ve->var;
487	if (k->ki_p->ki_wchan) {
488		if (k->ki_p->ki_wmesg[0] != 0)
489			(void)printf("%-*.*s", v->width, v->width,
490			    k->ki_p->ki_wmesg);
491		else
492			(void)printf("%-*lx", v->width,
493			    (long)k->ki_p->ki_wchan);
494	} else if (k->ki_p->ki_kiflag & KI_LOCKBLOCK) {
495		if (k->ki_p->ki_lockname[0]) {
496			(void)printf("%-*.*s", v->width, v->width,
497			    k->ki_p->ki_lockname);
498		} else
499			(void)printf("%-*s", v->width, "???");
500	} else
501		(void)printf("%-*s", v->width, "-");
502}
503
504void
505vsize(KINFO *k, VARENT *ve)
506{
507	VAR *v;
508
509	v = ve->var;
510	(void)printf("%*lu", v->width, (u_long)(k->ki_p->ki_size / 1024));
511}
512
513void
514cputime(KINFO *k, VARENT *ve)
515{
516	VAR *v;
517	long secs;
518	long psecs;	/* "parts" of a second. first micro, then centi */
519	char obuff[128];
520	static char decimal_point;
521
522	if (decimal_point == '\0')
523		decimal_point = localeconv()->decimal_point[0];
524	v = ve->var;
525	if (!k->ki_valid) {
526		secs = 0;
527		psecs = 0;
528	} else {
529		/*
530		 * This counts time spent handling interrupts.  We could
531		 * fix this, but it is not 100% trivial (and interrupt
532		 * time fractions only work on the sparc anyway).	XXX
533		 */
534		secs = k->ki_p->ki_runtime / 1000000;
535		psecs = k->ki_p->ki_runtime % 1000000;
536		if (sumrusage) {
537			secs += k->ki_p->ki_childtime.tv_sec;
538			psecs += k->ki_p->ki_childtime.tv_usec;
539		}
540		/*
541		 * round and scale to 100's
542		 */
543		psecs = (psecs + 5000) / 10000;
544		secs += psecs / 100;
545		psecs = psecs % 100;
546	}
547	(void)snprintf(obuff, sizeof(obuff), "%3ld:%02ld%c%02ld",
548	    secs / 60, secs % 60, decimal_point, psecs);
549	(void)printf("%*s", v->width, obuff);
550}
551
552void
553elapsed(KINFO *k, VARENT *ve)
554{
555	VAR *v;
556	time_t val;
557	int days, hours, mins, secs;
558	char obuff[128];
559
560	v = ve->var;
561	val = now - k->ki_p->ki_start.tv_sec;
562	days = val / (24 * 60 * 60);
563	val %= 24 * 60 * 60;
564	hours = val / (60 * 60);
565	val %= 60 * 60;
566	mins = val / 60;
567	secs = val % 60;
568	if (days != 0)
569		(void)snprintf(obuff, sizeof(obuff), "%3d-%02d:%02d:%02d",
570		    days, hours, mins, secs);
571	else if (hours != 0)
572		(void)snprintf(obuff, sizeof(obuff), "%02d:%02d:%02d",
573		    hours, mins, secs);
574	else
575		(void)snprintf(obuff, sizeof(obuff), "%02d:%02d", mins, secs);
576	(void)printf("%*s", v->width, obuff);
577}
578
579double
580getpcpu(const KINFO *k)
581{
582	static int failure;
583
584	if (!nlistread)
585		failure = donlist();
586	if (failure)
587		return (0.0);
588
589#define	fxtofl(fixpt)	((double)(fixpt) / fscale)
590
591	/* XXX - I don't like this */
592	if (k->ki_p->ki_swtime == 0 || (k->ki_p->ki_sflag & PS_INMEM) == 0)
593		return (0.0);
594	if (rawcpu)
595		return (100.0 * fxtofl(k->ki_p->ki_pctcpu));
596	return (100.0 * fxtofl(k->ki_p->ki_pctcpu) /
597		(1.0 - exp(k->ki_p->ki_swtime * log(fxtofl(ccpu)))));
598}
599
600void
601pcpu(KINFO *k, VARENT *ve)
602{
603	VAR *v;
604
605	v = ve->var;
606	(void)printf("%*.1f", v->width, getpcpu(k));
607}
608
609static double
610getpmem(KINFO *k)
611{
612	static int failure;
613	double fracmem;
614
615	if (!nlistread)
616		failure = donlist();
617	if (failure)
618		return (0.0);
619
620	if ((k->ki_p->ki_sflag & PS_INMEM) == 0)
621		return (0.0);
622	/* XXX want pmap ptpages, segtab, etc. (per architecture) */
623	/* XXX don't have info about shared */
624	fracmem = ((float)k->ki_p->ki_rssize) / mempages;
625	return (100.0 * fracmem);
626}
627
628void
629pmem(KINFO *k, VARENT *ve)
630{
631	VAR *v;
632
633	v = ve->var;
634	(void)printf("%*.1f", v->width, getpmem(k));
635}
636
637void
638pagein(KINFO *k, VARENT *ve)
639{
640	VAR *v;
641
642	v = ve->var;
643	(void)printf("%*ld", v->width,
644	    k->ki_valid ? k->ki_p->ki_rusage.ru_majflt : 0);
645}
646
647/* ARGSUSED */
648void
649maxrss(KINFO *k __unused, VARENT *ve)
650{
651	VAR *v;
652
653	v = ve->var;
654	/* XXX not yet */
655	(void)printf("%*s", v->width, "-");
656}
657
658void
659priorityr(KINFO *k, VARENT *ve)
660{
661	VAR *v;
662	struct priority *lpri;
663	char str[8];
664	unsigned class, level;
665
666	v = ve->var;
667	lpri = &k->ki_p->ki_pri;
668	class = lpri->pri_class;
669	level = lpri->pri_level;
670	switch (class) {
671	case PRI_ITHD:
672		snprintf(str, sizeof(str), "intr:%u", level);
673		break;
674	case PRI_REALTIME:
675		snprintf(str, sizeof(str), "real:%u", level);
676		break;
677	case PRI_TIMESHARE:
678		strncpy(str, "normal", sizeof(str));
679		break;
680	case PRI_IDLE:
681		snprintf(str, sizeof(str), "idle:%u", level);
682		break;
683	default:
684		snprintf(str, sizeof(str), "%u:%u", class, level);
685		break;
686	}
687	str[sizeof(str) - 1] = '\0';
688	(void)printf("%*s", v->width, str);
689}
690
691/*
692 * Generic output routines.  Print fields from various prototype
693 * structures.
694 */
695static void
696printval(void *bp, VAR *v)
697{
698	static char ofmt[32] = "%";
699	const char *fcp;
700	char *cp;
701
702	cp = ofmt + 1;
703	fcp = v->fmt;
704	if (v->flag & LJUST)
705		*cp++ = '-';
706	*cp++ = '*';
707	while ((*cp++ = *fcp++));
708
709#define	CHKINF127(n)	(((n) > 127) && (v->flag & INF127) ? 127 : (n))
710
711	switch (v->type) {
712	case CHAR:
713		(void)printf(ofmt, v->width, *(char *)bp);
714		break;
715	case UCHAR:
716		(void)printf(ofmt, v->width, *(u_char *)bp);
717		break;
718	case SHORT:
719		(void)printf(ofmt, v->width, *(short *)bp);
720		break;
721	case USHORT:
722		(void)printf(ofmt, v->width, *(u_short *)bp);
723		break;
724	case INT:
725		(void)printf(ofmt, v->width, *(int *)bp);
726		break;
727	case UINT:
728		(void)printf(ofmt, v->width, CHKINF127(*(u_int *)bp));
729		break;
730	case LONG:
731		(void)printf(ofmt, v->width, *(long *)bp);
732		break;
733	case ULONG:
734		(void)printf(ofmt, v->width, *(u_long *)bp);
735		break;
736	case KPTR:
737		(void)printf(ofmt, v->width, *(u_long *)bp);
738		break;
739	case PGTOK:
740		(void)printf(ofmt, v->width, ps_pgtok(*(u_long *)bp));
741		break;
742	default:
743		errx(1, "unknown type %d", v->type);
744	}
745}
746
747void
748kvar(KINFO *k, VARENT *ve)
749{
750	VAR *v;
751
752	v = ve->var;
753	printval((char *)((char *)k->ki_p + v->off), v);
754}
755
756void
757rvar(KINFO *k, VARENT *ve)
758{
759	VAR *v;
760
761	v = ve->var;
762	if (k->ki_valid)
763		printval((char *)((char *)(&k->ki_p->ki_rusage) + v->off), v);
764	else
765		(void)printf("%*s", v->width, "-");
766}
767
768void
769emulname(KINFO *k, VARENT *ve)
770{
771	VAR *v;
772
773	v = ve->var;
774	printf("%-*s", v->width, *k->ki_p->ki_emul ? k->ki_p->ki_emul : "-");
775}
776
777void
778label(KINFO *k, VARENT *ve)
779{
780	char *string;
781	VAR *v;
782	mac_t proclabel;
783	int error;
784
785	v = ve->var;
786	string = NULL;
787	if (mac_prepare_process_label(&proclabel) == -1) {
788		warn("mac_prepare_process_label");
789		goto out;
790	}
791	error = mac_get_pid(k->ki_p->ki_pid, proclabel);
792	if (error == 0) {
793		if (mac_to_text(proclabel, &string) == -1)
794			string = NULL;
795	}
796	mac_free(proclabel);
797out:
798	if (string != NULL) {
799		(void)printf("%-*s", v->width, string);
800		free(string);
801	} else
802		(void)printf("%-*s", v->width, "  -");
803	return;
804}
805
806int
807s_label(KINFO *k)
808{
809	char *string = NULL;
810	mac_t proclabel;
811	int error, size = 0;
812
813	if (mac_prepare_process_label(&proclabel) == -1) {
814		warn("mac_prepare_process_label");
815		return (0);
816	}
817	error = mac_get_pid(k->ki_p->ki_pid, proclabel);
818	if (error == 0 && mac_to_text(proclabel, &string) == 0) {
819		size = strlen(string);
820		free(string);
821	}
822	mac_free(proclabel);
823	return (size);
824}
825