xref: /freebsd/bin/ps/print.c (revision dc36d6f9bb1753f3808552f3afd30eda9a7b206a) 
1 /*-
2  * SPDX-License-Identifier: BSD-3-Clause
3  *
4  * Copyright (c) 1990, 1993, 1994
5  *	The Regents of the University of California.  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  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  * 3. Neither the name of the University nor the names of its contributors
16  *    may be used to endorse or promote products derived from this software
17  *    without specific prior written permission.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29  * SUCH DAMAGE.
30  */
31 
32 #if 0
33 #endif
34 
35 #include <sys/cdefs.h>
36 #include <sys/param.h>
37 #include <sys/time.h>
38 #include <sys/resource.h>
39 #include <sys/proc.h>
40 #include <sys/stat.h>
41 
42 #include <sys/mac.h>
43 #include <sys/user.h>
44 #include <sys/sysctl.h>
45 #include <sys/vmmeter.h>
46 
47 #include <err.h>
48 #include <grp.h>
49 #include <jail.h>
50 #include <langinfo.h>
51 #include <locale.h>
52 #include <math.h>
53 #include <nlist.h>
54 #include <pwd.h>
55 #include <stddef.h>
56 #include <stdint.h>
57 #include <stdio.h>
58 #include <stdlib.h>
59 #include <string.h>
60 #include <unistd.h>
61 #include <vis.h>
62 #include <libxo/xo.h>
63 
64 #include "ps.h"
65 
66 #define	COMMAND_WIDTH	16
67 #define	ARGUMENTS_WIDTH	16
68 
69 #define	ps_pgtok(a)	(((a) * getpagesize()) / 1024)
70 
71 void
72 printheader(void)
73 {
74 	VAR *v;
75 	struct varent *vent;
76 
77 	STAILQ_FOREACH(vent, &varlist, next_ve)
78 		if (*vent->header != '\0')
79 			break;
80 	if (!vent)
81 		return;
82 
83 	STAILQ_FOREACH(vent, &varlist, next_ve) {
84 		v = vent->var;
85 		if (v->flag & LJUST) {
86 			if (STAILQ_NEXT(vent, next_ve) == NULL)	/* last one */
87 				xo_emit("{T:/%hs}", vent->header);
88 			else
89 				xo_emit("{T:/%-*hs}", v->width, vent->header);
90 		} else
91 			xo_emit("{T:/%*hs}", v->width, vent->header);
92 		if (STAILQ_NEXT(vent, next_ve) != NULL)
93 			xo_emit("{P: }");
94 	}
95 	xo_emit("\n");
96 }
97 
98 char *
99 arguments(KINFO *k, VARENT *ve)
100 {
101 	char *vis_args;
102 
103 	if ((vis_args = malloc(strlen(k->ki_args) * 4 + 1)) == NULL)
104 		xo_errx(1, "malloc failed");
105 	strvis(vis_args, k->ki_args, VIS_TAB | VIS_NL | VIS_NOSLASH);
106 
107 	if (STAILQ_NEXT(ve, next_ve) != NULL && strlen(vis_args) > ARGUMENTS_WIDTH)
108 		vis_args[ARGUMENTS_WIDTH] = '\0';
109 
110 	return (vis_args);
111 }
112 
113 char *
114 command(KINFO *k, VARENT *ve)
115 {
116 	char *vis_args, *vis_env, *str;
117 
118 	if (cflag) {
119 		/* If it is the last field, then don't pad */
120 		if (STAILQ_NEXT(ve, next_ve) == NULL) {
121 			asprintf(&str, "%s%s%s%s%s",
122 			    k->ki_d.prefix ? k->ki_d.prefix : "",
123 			    k->ki_p->ki_comm,
124 			    (showthreads && k->ki_p->ki_numthreads > 1) ? "/" : "",
125 			    (showthreads && k->ki_p->ki_numthreads > 1) ? k->ki_p->ki_tdname : "",
126 			    (showthreads && k->ki_p->ki_numthreads > 1) ? k->ki_p->ki_moretdname : "");
127 		} else
128 			str = strdup(k->ki_p->ki_comm);
129 
130 		return (str);
131 	}
132 	if ((vis_args = malloc(strlen(k->ki_args) * 4 + 1)) == NULL)
133 		xo_errx(1, "malloc failed");
134 	strvis(vis_args, k->ki_args, VIS_TAB | VIS_NL | VIS_NOSLASH);
135 
136 	if (STAILQ_NEXT(ve, next_ve) == NULL) {
137 		/* last field */
138 
139 		if (k->ki_env) {
140 			if ((vis_env = malloc(strlen(k->ki_env) * 4 + 1))
141 			    == NULL)
142 				xo_errx(1, "malloc failed");
143 			strvis(vis_env, k->ki_env,
144 			    VIS_TAB | VIS_NL | VIS_NOSLASH);
145 		} else
146 			vis_env = NULL;
147 
148 		asprintf(&str, "%s%s%s%s",
149 		    k->ki_d.prefix ? k->ki_d.prefix : "",
150 		    vis_env ? vis_env : "",
151 		    vis_env ? " " : "",
152 		    vis_args);
153 
154 		if (vis_env != NULL)
155 			free(vis_env);
156 		free(vis_args);
157 	} else {
158 		/* ki_d.prefix & ki_env aren't shown for interim fields */
159 		str = vis_args;
160 
161 		if (strlen(str) > COMMAND_WIDTH)
162 			str[COMMAND_WIDTH] = '\0';
163 	}
164 
165 	return (str);
166 }
167 
168 char *
169 ucomm(KINFO *k, VARENT *ve)
170 {
171 	char *str;
172 
173 	if (STAILQ_NEXT(ve, next_ve) == NULL) {	/* last field, don't pad */
174 		asprintf(&str, "%s%s%s%s%s",
175 		    k->ki_d.prefix ? k->ki_d.prefix : "",
176 		    k->ki_p->ki_comm,
177 		    (showthreads && k->ki_p->ki_numthreads > 1) ? "/" : "",
178 		    (showthreads && k->ki_p->ki_numthreads > 1) ? k->ki_p->ki_tdname : "",
179 		    (showthreads && k->ki_p->ki_numthreads > 1) ? k->ki_p->ki_moretdname : "");
180 	} else {
181 		if (showthreads && k->ki_p->ki_numthreads > 1)
182 			asprintf(&str, "%s/%s%s", k->ki_p->ki_comm,
183 			    k->ki_p->ki_tdname, k->ki_p->ki_moretdname);
184 		else
185 			str = strdup(k->ki_p->ki_comm);
186 	}
187 	return (str);
188 }
189 
190 char *
191 tdnam(KINFO *k, VARENT *ve __unused)
192 {
193 	char *str;
194 
195 	if (showthreads && k->ki_p->ki_numthreads > 1)
196 		asprintf(&str, "%s%s", k->ki_p->ki_tdname,
197 		    k->ki_p->ki_moretdname);
198 	else
199 		str = strdup("      ");
200 
201 	return (str);
202 }
203 
204 char *
205 logname(KINFO *k, VARENT *ve __unused)
206 {
207 
208 	if (*k->ki_p->ki_login == '\0')
209 		return (NULL);
210 	return (strdup(k->ki_p->ki_login));
211 }
212 
213 char *
214 state(KINFO *k, VARENT *ve __unused)
215 {
216 	long flag, tdflags;
217 	char *cp, *buf;
218 
219 	buf = malloc(16);
220 	if (buf == NULL)
221 		xo_errx(1, "malloc failed");
222 
223 	flag = k->ki_p->ki_flag;
224 	tdflags = k->ki_p->ki_tdflags;	/* XXXKSE */
225 	cp = buf;
226 
227 	switch (k->ki_p->ki_stat) {
228 
229 	case SSTOP:
230 		*cp = 'T';
231 		break;
232 
233 	case SSLEEP:
234 		if (tdflags & TDF_SINTR)	/* interruptible (long) */
235 			*cp = k->ki_p->ki_slptime >= MAXSLP ? 'I' : 'S';
236 		else
237 			*cp = 'D';
238 		break;
239 
240 	case SRUN:
241 	case SIDL:
242 		*cp = 'R';
243 		break;
244 
245 	case SWAIT:
246 		*cp = 'W';
247 		break;
248 
249 	case SLOCK:
250 		*cp = 'L';
251 		break;
252 
253 	case SZOMB:
254 		*cp = 'Z';
255 		break;
256 
257 	default:
258 		*cp = '?';
259 	}
260 	cp++;
261 	if (!(flag & P_INMEM))
262 		*cp++ = 'W';
263 	if (k->ki_p->ki_nice < NZERO || k->ki_p->ki_pri.pri_class == PRI_REALTIME)
264 		*cp++ = '<';
265 	else if (k->ki_p->ki_nice > NZERO || k->ki_p->ki_pri.pri_class == PRI_IDLE)
266 		*cp++ = 'N';
267 	if (flag & P_TRACED)
268 		*cp++ = 'X';
269 	if (flag & P_WEXIT && k->ki_p->ki_stat != SZOMB)
270 		*cp++ = 'E';
271 	if (flag & P_PPWAIT)
272 		*cp++ = 'V';
273 	if ((flag & P_SYSTEM) || k->ki_p->ki_lock > 0)
274 		*cp++ = 'L';
275 	if ((k->ki_p->ki_cr_flags & CRED_FLAG_CAPMODE) != 0)
276 		*cp++ = 'C';
277 	if (k->ki_p->ki_kiflag & KI_SLEADER)
278 		*cp++ = 's';
279 	if ((flag & P_CONTROLT) && k->ki_p->ki_pgid == k->ki_p->ki_tpgid)
280 		*cp++ = '+';
281 	if (flag & P_JAILED)
282 		*cp++ = 'J';
283 	*cp = '\0';
284 	return (buf);
285 }
286 
287 #define	scalepri(x)	((x) - PZERO)
288 
289 char *
290 pri(KINFO *k, VARENT *ve __unused)
291 {
292 	char *str;
293 
294 	asprintf(&str, "%d", scalepri(k->ki_p->ki_pri.pri_level));
295 	return (str);
296 }
297 
298 char *
299 upr(KINFO *k, VARENT *ve __unused)
300 {
301 	char *str;
302 
303 	asprintf(&str, "%d", scalepri(k->ki_p->ki_pri.pri_user));
304 	return (str);
305 }
306 #undef scalepri
307 
308 char *
309 username(KINFO *k, VARENT *ve __unused)
310 {
311 
312 	return (strdup(user_from_uid(k->ki_p->ki_uid, 0)));
313 }
314 
315 char *
316 egroupname(KINFO *k, VARENT *ve __unused)
317 {
318 
319 	return (strdup(group_from_gid(k->ki_p->ki_groups[0], 0)));
320 }
321 
322 char *
323 rgroupname(KINFO *k, VARENT *ve __unused)
324 {
325 
326 	return (strdup(group_from_gid(k->ki_p->ki_rgid, 0)));
327 }
328 
329 char *
330 runame(KINFO *k, VARENT *ve __unused)
331 {
332 
333 	return (strdup(user_from_uid(k->ki_p->ki_ruid, 0)));
334 }
335 
336 char *
337 tdev(KINFO *k, VARENT *ve __unused)
338 {
339 	dev_t dev;
340 	char *str;
341 
342 	dev = k->ki_p->ki_tdev;
343 	if (dev == NODEV)
344 		str = strdup("-");
345 	else
346 		asprintf(&str, "%#jx", (uintmax_t)dev);
347 
348 	return (str);
349 }
350 
351 char *
352 tname(KINFO *k, VARENT *ve __unused)
353 {
354 	dev_t dev;
355 	char *ttname, *str;
356 
357 	dev = k->ki_p->ki_tdev;
358 	if (dev == NODEV || (ttname = devname(dev, S_IFCHR)) == NULL)
359 		str = strdup("- ");
360 	else {
361 		if (strncmp(ttname, "tty", 3) == 0 ||
362 		    strncmp(ttname, "cua", 3) == 0)
363 			ttname += 3;
364 		if (strncmp(ttname, "pts/", 4) == 0)
365 			ttname += 4;
366 		asprintf(&str, "%s%c", ttname,
367 		    k->ki_p->ki_kiflag & KI_CTTY ? ' ' : '-');
368 	}
369 
370 	return (str);
371 }
372 
373 char *
374 longtname(KINFO *k, VARENT *ve __unused)
375 {
376 	dev_t dev;
377 	const char *ttname;
378 
379 	dev = k->ki_p->ki_tdev;
380 	if (dev == NODEV || (ttname = devname(dev, S_IFCHR)) == NULL)
381 		ttname = "-";
382 
383 	return (strdup(ttname));
384 }
385 
386 char *
387 started(KINFO *k, VARENT *ve __unused)
388 {
389 	time_t then;
390 	struct tm *tp;
391 	size_t buflen = 100;
392 	char *buf;
393 
394 	if (!k->ki_valid)
395 		return (NULL);
396 
397 	buf = malloc(buflen);
398 	if (buf == NULL)
399 		xo_errx(1, "malloc failed");
400 
401 	then = k->ki_p->ki_start.tv_sec;
402 	tp = localtime(&then);
403 	if (now - k->ki_p->ki_start.tv_sec < 24 * 3600) {
404 		(void)strftime(buf, buflen, "%H:%M  ", tp);
405 	} else if (now - k->ki_p->ki_start.tv_sec < 7 * 86400) {
406 		(void)strftime(buf, buflen, "%a%H  ", tp);
407 	} else
408 		(void)strftime(buf, buflen, "%e%b%y", tp);
409 	return (buf);
410 }
411 
412 char *
413 lstarted(KINFO *k, VARENT *ve __unused)
414 {
415 	time_t then;
416 	char *buf;
417 	size_t buflen = 100;
418 
419 	if (!k->ki_valid)
420 		return (NULL);
421 
422 	buf = malloc(buflen);
423 	if (buf == NULL)
424 		xo_errx(1, "malloc failed");
425 
426 	then = k->ki_p->ki_start.tv_sec;
427 	(void)strftime(buf, buflen, "%c", localtime(&then));
428 	return (buf);
429 }
430 
431 char *
432 lockname(KINFO *k, VARENT *ve __unused)
433 {
434 	char *str;
435 
436 	if (k->ki_p->ki_kiflag & KI_LOCKBLOCK) {
437 		if (k->ki_p->ki_lockname[0] != 0)
438 			str = strdup(k->ki_p->ki_lockname);
439 		else
440 			str = strdup("???");
441 	} else
442 		str = NULL;
443 
444 	return (str);
445 }
446 
447 char *
448 wchan(KINFO *k, VARENT *ve __unused)
449 {
450 	char *str;
451 
452 	if (k->ki_p->ki_wchan) {
453 		if (k->ki_p->ki_wmesg[0] != 0)
454 			str = strdup(k->ki_p->ki_wmesg);
455 		else
456 			asprintf(&str, "%lx", (long)k->ki_p->ki_wchan);
457 	} else
458 		str = NULL;
459 
460 	return (str);
461 }
462 
463 char *
464 nwchan(KINFO *k, VARENT *ve __unused)
465 {
466 	char *str;
467 
468 	if (k->ki_p->ki_wchan)
469 		asprintf(&str, "%0lx", (long)k->ki_p->ki_wchan);
470 	else
471 		str = NULL;
472 
473 	return (str);
474 }
475 
476 char *
477 mwchan(KINFO *k, VARENT *ve __unused)
478 {
479 	char *str;
480 
481 	if (k->ki_p->ki_wchan) {
482 		if (k->ki_p->ki_wmesg[0] != 0)
483 			str = strdup(k->ki_p->ki_wmesg);
484 		else
485                         asprintf(&str, "%lx", (long)k->ki_p->ki_wchan);
486 	} else if (k->ki_p->ki_kiflag & KI_LOCKBLOCK) {
487 		if (k->ki_p->ki_lockname[0]) {
488 			str = strdup(k->ki_p->ki_lockname);
489 		} else
490 			str = strdup("???");
491 	} else
492 		str = NULL;
493 
494 	return (str);
495 }
496 
497 char *
498 vsize(KINFO *k, VARENT *ve __unused)
499 {
500 	char *str;
501 
502 	asprintf(&str, "%lu", (u_long)(k->ki_p->ki_size / 1024));
503 	return (str);
504 }
505 
506 static char *
507 printtime(KINFO *k, VARENT *ve __unused, long secs, long psecs)
508 /* psecs is "parts" of a second. first micro, then centi */
509 {
510 	static char decimal_point;
511 	char *str;
512 
513 	if (decimal_point == '\0')
514 		decimal_point = localeconv()->decimal_point[0];
515 	if (!k->ki_valid) {
516 		secs = 0;
517 		psecs = 0;
518 	} else {
519 		/* round and scale to 100's */
520 		psecs = (psecs + 5000) / 10000;
521 		secs += psecs / 100;
522 		psecs = psecs % 100;
523 	}
524 	asprintf(&str, "%ld:%02ld%c%02ld",
525 	    secs / 60, secs % 60, decimal_point, psecs);
526 	return (str);
527 }
528 
529 char *
530 cputime(KINFO *k, VARENT *ve)
531 {
532 	long secs, psecs;
533 
534 	/*
535 	 * This counts time spent handling interrupts.  We could
536 	 * fix this, but it is not 100% trivial (and interrupt
537 	 * time fractions only work on the sparc anyway).	XXX
538 	 */
539 	secs = k->ki_p->ki_runtime / 1000000;
540 	psecs = k->ki_p->ki_runtime % 1000000;
541 	if (sumrusage) {
542 		secs += k->ki_p->ki_childtime.tv_sec;
543 		psecs += k->ki_p->ki_childtime.tv_usec;
544 	}
545 	return (printtime(k, ve, secs, psecs));
546 }
547 
548 char *
549 cpunum(KINFO *k, VARENT *ve __unused)
550 {
551 	char *cpu;
552 
553 	if (k->ki_p->ki_stat == SRUN && k->ki_p->ki_oncpu != NOCPU) {
554 		asprintf(&cpu, "%d", k->ki_p->ki_oncpu);
555 	} else {
556 		asprintf(&cpu, "%d", k->ki_p->ki_lastcpu);
557 	}
558 	return (cpu);
559 }
560 
561 char *
562 systime(KINFO *k, VARENT *ve)
563 {
564 	long secs, psecs;
565 
566 	secs = k->ki_p->ki_rusage.ru_stime.tv_sec;
567 	psecs = k->ki_p->ki_rusage.ru_stime.tv_usec;
568 	if (sumrusage) {
569 		secs += k->ki_p->ki_childstime.tv_sec;
570 		psecs += k->ki_p->ki_childstime.tv_usec;
571 	}
572 	return (printtime(k, ve, secs, psecs));
573 }
574 
575 char *
576 usertime(KINFO *k, VARENT *ve)
577 {
578 	long secs, psecs;
579 
580 	secs = k->ki_p->ki_rusage.ru_utime.tv_sec;
581 	psecs = k->ki_p->ki_rusage.ru_utime.tv_usec;
582 	if (sumrusage) {
583 		secs += k->ki_p->ki_childutime.tv_sec;
584 		psecs += k->ki_p->ki_childutime.tv_usec;
585 	}
586 	return (printtime(k, ve, secs, psecs));
587 }
588 
589 char *
590 elapsed(KINFO *k, VARENT *ve __unused)
591 {
592 	time_t val;
593 	int days, hours, mins, secs;
594 	char *str;
595 
596 	if (!k->ki_valid)
597 		return (NULL);
598 	val = now - k->ki_p->ki_start.tv_sec;
599 	days = val / (24 * 60 * 60);
600 	val %= 24 * 60 * 60;
601 	hours = val / (60 * 60);
602 	val %= 60 * 60;
603 	mins = val / 60;
604 	secs = val % 60;
605 	if (days != 0)
606 		asprintf(&str, "%3d-%02d:%02d:%02d", days, hours, mins, secs);
607 	else if (hours != 0)
608 		asprintf(&str, "%02d:%02d:%02d", hours, mins, secs);
609 	else
610 		asprintf(&str, "%02d:%02d", mins, secs);
611 
612 	return (str);
613 }
614 
615 char *
616 elapseds(KINFO *k, VARENT *ve __unused)
617 {
618 	time_t val;
619 	char *str;
620 
621 	if (!k->ki_valid)
622 		return (NULL);
623 	val = now - k->ki_p->ki_start.tv_sec;
624 	asprintf(&str, "%jd", (intmax_t)val);
625 	return (str);
626 }
627 
628 double
629 getpcpu(const KINFO *k)
630 {
631 	static int failure;
632 
633 	if (!nlistread)
634 		failure = donlist();
635 	if (failure)
636 		return (0.0);
637 
638 #define	fxtofl(fixpt)	((double)(fixpt) / fscale)
639 
640 	/* XXX - I don't like this */
641 	if (k->ki_p->ki_swtime == 0 || (k->ki_p->ki_flag & P_INMEM) == 0)
642 		return (0.0);
643 	if (rawcpu)
644 		return (100.0 * fxtofl(k->ki_p->ki_pctcpu));
645 	return (100.0 * fxtofl(k->ki_p->ki_pctcpu) /
646 		(1.0 - exp(k->ki_p->ki_swtime * log(fxtofl(ccpu)))));
647 }
648 
649 char *
650 pcpu(KINFO *k, VARENT *ve __unused)
651 {
652 	char *str;
653 
654 	asprintf(&str, "%.1f", getpcpu(k));
655 	return (str);
656 }
657 
658 static double
659 getpmem(KINFO *k)
660 {
661 	static int failure;
662 	double fracmem;
663 
664 	if (!nlistread)
665 		failure = donlist();
666 	if (failure)
667 		return (0.0);
668 
669 	if ((k->ki_p->ki_flag & P_INMEM) == 0)
670 		return (0.0);
671 	/* XXX want pmap ptpages, segtab, etc. (per architecture) */
672 	/* XXX don't have info about shared */
673 	fracmem = ((double)k->ki_p->ki_rssize) / mempages;
674 	return (100.0 * fracmem);
675 }
676 
677 char *
678 pmem(KINFO *k, VARENT *ve __unused)
679 {
680 	char *str;
681 
682 	asprintf(&str, "%.1f", getpmem(k));
683 	return (str);
684 }
685 
686 char *
687 pagein(KINFO *k, VARENT *ve __unused)
688 {
689 	char *str;
690 
691 	asprintf(&str, "%ld", k->ki_valid ? k->ki_p->ki_rusage.ru_majflt : 0);
692 	return (str);
693 }
694 
695 /* ARGSUSED */
696 char *
697 maxrss(KINFO *k __unused, VARENT *ve __unused)
698 {
699 
700 	/* XXX not yet */
701 	return (NULL);
702 }
703 
704 char *
705 priorityr(KINFO *k, VARENT *ve __unused)
706 {
707 	struct priority *lpri;
708 	char *str;
709 	unsigned class, level;
710 
711 	lpri = &k->ki_p->ki_pri;
712 	class = lpri->pri_class;
713 	level = lpri->pri_level;
714 	switch (class) {
715 	case RTP_PRIO_REALTIME:
716 	/* alias for PRI_REALTIME */
717 		asprintf(&str, "real:%u", level - PRI_MIN_REALTIME);
718 		break;
719 	case RTP_PRIO_NORMAL:
720 	/* alias for PRI_TIMESHARE */
721 		if (level >= PRI_MIN_TIMESHARE)
722 			asprintf(&str, "normal:%u", level - PRI_MIN_TIMESHARE);
723 		else
724 			asprintf(&str, "kernel:%u", level - PRI_MIN_KERN);
725 		break;
726 	case RTP_PRIO_IDLE:
727 	/* alias for PRI_IDLE */
728 		asprintf(&str, "idle:%u", level - PRI_MIN_IDLE);
729 		break;
730 	case RTP_PRIO_ITHD:
731 	/* alias for PRI_ITHD */
732 		asprintf(&str, "intr:%u", level - PRI_MIN_ITHD);
733 		break;
734 	default:
735 		asprintf(&str, "%u:%u", class, level);
736 		break;
737 	}
738 	return (str);
739 }
740 
741 /*
742  * Generic output routines.  Print fields from various prototype
743  * structures.
744  */
745 static char *
746 printval(void *bp, VAR *v)
747 {
748 	static char ofmt[32] = "%";
749 	const char *fcp;
750 	char *cp, *str;
751 
752 	cp = ofmt + 1;
753 	fcp = v->fmt;
754 	while ((*cp++ = *fcp++));
755 
756 #define	CHKINF127(n)	(((n) > 127) && (v->flag & INF127) ? 127 : (n))
757 
758 	switch (v->type) {
759 	case CHAR:
760 		(void)asprintf(&str, ofmt, *(char *)bp);
761 		break;
762 	case UCHAR:
763 		(void)asprintf(&str, ofmt, *(u_char *)bp);
764 		break;
765 	case SHORT:
766 		(void)asprintf(&str, ofmt, *(short *)bp);
767 		break;
768 	case USHORT:
769 		(void)asprintf(&str, ofmt, *(u_short *)bp);
770 		break;
771 	case INT:
772 		(void)asprintf(&str, ofmt, *(int *)bp);
773 		break;
774 	case UINT:
775 		(void)asprintf(&str, ofmt, CHKINF127(*(u_int *)bp));
776 		break;
777 	case LONG:
778 		(void)asprintf(&str, ofmt, *(long *)bp);
779 		break;
780 	case ULONG:
781 		(void)asprintf(&str, ofmt, *(u_long *)bp);
782 		break;
783 	case KPTR:
784 		(void)asprintf(&str, ofmt, *(u_long *)bp);
785 		break;
786 	case PGTOK:
787 		(void)asprintf(&str, ofmt, ps_pgtok(*(u_long *)bp));
788 		break;
789 	}
790 
791 	return (str);
792 }
793 
794 char *
795 kvar(KINFO *k, VARENT *ve)
796 {
797 	VAR *v;
798 
799 	v = ve->var;
800 	return (printval((char *)((char *)k->ki_p + v->off), v));
801 }
802 
803 char *
804 rvar(KINFO *k, VARENT *ve)
805 {
806 	VAR *v;
807 
808 	v = ve->var;
809 	if (!k->ki_valid)
810 		return (NULL);
811 	return (printval((char *)((char *)(&k->ki_p->ki_rusage) + v->off), v));
812 }
813 
814 char *
815 emulname(KINFO *k, VARENT *ve __unused)
816 {
817 
818 	return (strdup(k->ki_p->ki_emul));
819 }
820 
821 char *
822 label(KINFO *k, VARENT *ve __unused)
823 {
824 	char *string;
825 	mac_t proclabel;
826 	int error;
827 
828 	string = NULL;
829 	if (mac_prepare_process_label(&proclabel) == -1) {
830 		xo_warn("mac_prepare_process_label");
831 		goto out;
832 	}
833 	error = mac_get_pid(k->ki_p->ki_pid, proclabel);
834 	if (error == 0) {
835 		if (mac_to_text(proclabel, &string) == -1)
836 			string = NULL;
837 	}
838 	mac_free(proclabel);
839 out:
840 	return (string);
841 }
842 
843 char *
844 loginclass(KINFO *k, VARENT *ve __unused)
845 {
846 
847 	/*
848 	 * Don't display login class for system processes;
849 	 * login classes are used for resource limits,
850 	 * and limits don't apply to system processes.
851 	 */
852 	if (k->ki_p->ki_flag & P_SYSTEM) {
853 		return (strdup("-"));
854 	}
855 	return (strdup(k->ki_p->ki_loginclass));
856 }
857 
858 char *
859 jailname(KINFO *k, VARENT *ve __unused)
860 {
861 	char *name;
862 
863 	if (k->ki_p->ki_jid == 0)
864 		return (strdup("-"));
865 	name = jail_getname(k->ki_p->ki_jid);
866 	if (name == NULL)
867 		return (strdup("-"));
868 	return (name);
869 }
870