xref: /netbsd/bin/ps/print.c (revision 6550d01e)
1 /*	$NetBSD: print.c,v 1.117 2011/01/22 21:09:51 christos Exp $	*/
2 
3 /*
4  * Copyright (c) 2000, 2007 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * This code is derived from software contributed to The NetBSD Foundation
8  * by Simon Burge.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29  * POSSIBILITY OF SUCH DAMAGE.
30  */
31 
32 /*
33  * Copyright (c) 1990, 1993, 1994
34  *	The Regents of the University of California.  All rights reserved.
35  *
36  * Redistribution and use in source and binary forms, with or without
37  * modification, are permitted provided that the following conditions
38  * are met:
39  * 1. Redistributions of source code must retain the above copyright
40  *    notice, this list of conditions and the following disclaimer.
41  * 2. Redistributions in binary form must reproduce the above copyright
42  *    notice, this list of conditions and the following disclaimer in the
43  *    documentation and/or other materials provided with the distribution.
44  * 3. Neither the name of the University nor the names of its contributors
45  *    may be used to endorse or promote products derived from this software
46  *    without specific prior written permission.
47  *
48  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
49  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
50  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
51  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
52  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
53  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
54  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
55  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
56  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
57  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
58  * SUCH DAMAGE.
59  */
60 
61 #include <sys/cdefs.h>
62 #ifndef lint
63 #if 0
64 static char sccsid[] = "@(#)print.c	8.6 (Berkeley) 4/16/94";
65 #else
66 __RCSID("$NetBSD: print.c,v 1.117 2011/01/22 21:09:51 christos Exp $");
67 #endif
68 #endif /* not lint */
69 
70 #include <sys/param.h>
71 #include <sys/time.h>
72 #include <sys/resource.h>
73 #include <sys/lwp.h>
74 #include <sys/proc.h>
75 #include <sys/stat.h>
76 #include <sys/ucred.h>
77 #include <sys/sysctl.h>
78 
79 #include <err.h>
80 #include <grp.h>
81 #include <kvm.h>
82 #include <math.h>
83 #include <nlist.h>
84 #include <pwd.h>
85 #include <stddef.h>
86 #include <stdio.h>
87 #include <stdlib.h>
88 #include <string.h>
89 #include <time.h>
90 #include <tzfile.h>
91 #include <unistd.h>
92 
93 #include "ps.h"
94 
95 static char *cmdpart(char *);
96 static void  printval(void *, VAR *, int);
97 static int   titlecmp(char *, char **);
98 
99 static void  doubleprintorsetwidth(VAR *, double, int, int);
100 static void  intprintorsetwidth(VAR *, int, int);
101 static void  strprintorsetwidth(VAR *, const char *, int);
102 
103 static time_t now;
104 
105 #define	min(a,b)	((a) <= (b) ? (a) : (b))
106 
107 static int
108 iwidth(u_int64_t v)
109 {
110 	u_int64_t nlim, lim;
111 	int w = 1;
112 
113 	for (lim = 10; v >= lim; lim = nlim) {
114 		nlim = lim * 10;
115 		w++;
116 		if (nlim < lim)
117 			break;
118 	}
119 	return w;
120 }
121 
122 static char *
123 cmdpart(char *arg0)
124 {
125 	char *cp;
126 
127 	return ((cp = strrchr(arg0, '/')) != NULL ? cp + 1 : arg0);
128 }
129 
130 void
131 printheader(void)
132 {
133 	int len;
134 	VAR *v;
135 	struct varent *vent;
136 	static int firsttime = 1;
137 	static int noheader = 0;
138 
139 	/*
140 	 * If all the columns have user-specified null headers,
141 	 * don't print the blank header line at all.
142 	 */
143 	if (firsttime) {
144 		SIMPLEQ_FOREACH(vent, &displaylist, next) {
145 			if (vent->var->header[0])
146 				break;
147 		}
148 		if (vent == NULL) {
149 			noheader = 1;
150 			firsttime = 0;
151 		}
152 
153 	}
154 	if (noheader)
155 		return;
156 
157 	SIMPLEQ_FOREACH(vent, &displaylist, next) {
158 		v = vent->var;
159 		if (firsttime) {
160 			len = strlen(v->header);
161 			if (len > v->width)
162 				v->width = len;
163 			totwidth += v->width + 1;	/* +1 for space */
164 		}
165 		if (v->flag & LJUST) {
166 			if (SIMPLEQ_NEXT(vent, next) == NULL)	/* last one */
167 				(void)printf("%s", v->header);
168 			else
169 				(void)printf("%-*s", v->width,
170 				    v->header);
171 		} else
172 			(void)printf("%*s", v->width, v->header);
173 		if (SIMPLEQ_NEXT(vent, next) != NULL)
174 			(void)putchar(' ');
175 	}
176 	(void)putchar('\n');
177 	if (firsttime) {
178 		firsttime = 0;
179 		totwidth--;	/* take off last space */
180 	}
181 }
182 
183 /*
184  * Return 1 if the command name in the argument vector (u-area) does
185  * not match the command name (p_comm)
186  */
187 static int
188 titlecmp(char *name, char **argv)
189 {
190 	char *title;
191 	int namelen;
192 
193 
194 	/* no argument vector == no match; system processes/threads do that */
195 	if (argv == 0 || argv[0] == 0)
196 		return (1);
197 
198 	title = cmdpart(argv[0]);
199 
200 	/* the basename matches */
201 	if (!strcmp(name, title))
202 		return (0);
203 
204 	/* handle login shells, by skipping the leading - */
205 	if (title[0] == '-' && !strcmp(name, title + 1))
206 		return (0);
207 
208 	namelen = strlen(name);
209 
210 	/* handle daemons that report activity as daemonname: activity */
211 	if (argv[1] == 0 &&
212 	    !strncmp(name, title, namelen) &&
213 	    title[namelen + 0] == ':' &&
214 	    title[namelen + 1] == ' ')
215 		return (0);
216 
217 	return (1);
218 }
219 
220 static void
221 doubleprintorsetwidth(VAR *v, double val, int prec, int mode)
222 {
223 	int fmtlen;
224 
225 	if (mode == WIDTHMODE) {
226 		if (val < 0.0 && val < v->longestnd) {
227 			fmtlen = (int)log10(-val) + prec + 2;
228 			v->longestnd = val;
229 			if (fmtlen > v->width)
230 				v->width = fmtlen;
231 		} else if (val > 0.0 && val > v->longestpd) {
232 			fmtlen = (int)log10(val) + prec + 1;
233 			v->longestpd = val;
234 			if (fmtlen > v->width)
235 				v->width = fmtlen;
236 		}
237 	} else {
238 		(void)printf("%*.*f", v->width, prec, val);
239 	}
240 }
241 
242 static void
243 intprintorsetwidth(VAR *v, int val, int mode)
244 {
245 	int fmtlen;
246 
247 	if (mode == WIDTHMODE) {
248 		if (val < 0 && val < v->longestn) {
249 			v->longestn = val;
250 			fmtlen = iwidth(-val) + 1;
251 			if (fmtlen > v->width)
252 				v->width = fmtlen;
253 		} else if (val > 0 && val > v->longestp) {
254 			v->longestp = val;
255 			fmtlen = iwidth(val);
256 			if (fmtlen > v->width)
257 				v->width = fmtlen;
258 		}
259 	} else
260 		(void)printf("%*d", v->width, val);
261 }
262 
263 static void
264 strprintorsetwidth(VAR *v, const char *str, int mode)
265 {
266 	int len;
267 
268 	if (mode == WIDTHMODE) {
269 		len = strlen(str);
270 		if (len > v->width)
271 			v->width = len;
272 	} else {
273 		if (v->flag & LJUST)
274 			(void)printf("%-*.*s", v->width, v->width, str);
275 		else
276 			(void)printf("%*.*s", v->width, v->width, str);
277 	}
278 }
279 
280 void
281 command(void *arg, VARENT *ve, int mode)
282 {
283 	struct kinfo_proc2 *ki;
284 	VAR *v;
285 	int left;
286 	char **argv, **p, *name;
287 
288 	if (mode == WIDTHMODE)
289 		return;
290 
291 	ki = arg;
292 	v = ve->var;
293 	if (SIMPLEQ_NEXT(ve, next) != NULL || termwidth != UNLIMITED) {
294 		if (SIMPLEQ_NEXT(ve, next) == NULL) {
295 			left = termwidth - (totwidth - v->width);
296 			if (left < 1) /* already wrapped, just use std width */
297 				left = v->width;
298 		} else
299 			left = v->width;
300 	} else
301 		left = -1;
302 	if (needenv && kd) {
303 		argv = kvm_getenvv2(kd, ki, termwidth);
304 		if ((p = argv) != NULL) {
305 			while (*p) {
306 				fmt_puts(*p, &left);
307 				p++;
308 				fmt_putc(' ', &left);
309 			}
310 		}
311 	}
312 	if (needcomm) {
313 		name = ki->p_comm;
314 		if (!commandonly) {
315 			argv = kvm_getargv2(kd, ki, termwidth);
316 			if ((p = argv) != NULL) {
317 				while (*p) {
318 					fmt_puts(*p, &left);
319 					p++;
320 					fmt_putc(' ', &left);
321 					if (v->flag & ARGV0)
322 						break;
323 				}
324 				if (!(v->flag & ARGV0) &&
325 				    titlecmp(name, argv)) {
326 					/*
327 					 * append the real command name within
328 					 * parentheses, if the command name
329 					 * does not match the one in the
330 					 * argument vector
331 					 */
332 					fmt_putc('(', &left);
333 					fmt_puts(name, &left);
334 					fmt_putc(')', &left);
335 				}
336 			} else {
337 				/*
338 				 * Commands that don't set an argv vector
339 				 * are printed with square brackets if they
340 				 * are system commands.  Otherwise they are
341 				 * printed within parentheses.
342 				 */
343 				if (ki->p_flag & P_SYSTEM) {
344 					fmt_putc('[', &left);
345 					fmt_puts(name, &left);
346 					fmt_putc(']', &left);
347 				} else {
348 					fmt_putc('(', &left);
349 					fmt_puts(name, &left);
350 					fmt_putc(')', &left);
351 				}
352 			}
353 		} else {
354 			fmt_puts(name, &left);
355 		}
356 	}
357 	if (SIMPLEQ_NEXT(ve, next) != NULL && left > 0)
358 		(void)printf("%*s", left, "");
359 }
360 
361 void
362 groups(void *arg, VARENT *ve, int mode)
363 {
364 	struct kinfo_proc2 *ki;
365 	VAR *v;
366 	int left, i;
367 	char buf[16], *p;
368 
369 	if (mode == WIDTHMODE)
370 		return;
371 
372 	ki = arg;
373 	v = ve->var;
374 	if (SIMPLEQ_NEXT(ve, next) != NULL || termwidth != UNLIMITED) {
375 		if (SIMPLEQ_NEXT(ve, next) == NULL) {
376 			left = termwidth - (totwidth - v->width);
377 			if (left < 1) /* already wrapped, just use std width */
378 				left = v->width;
379 		} else
380 			left = v->width;
381 	} else
382 		left = -1;
383 
384 	if (ki->p_ngroups == 0)
385 		fmt_putc('-', &left);
386 
387 	for (i = 0; i < ki->p_ngroups; i++) {
388 		(void)snprintf(buf, sizeof(buf), "%d", ki->p_groups[i]);
389 		if (i)
390 			fmt_putc(' ', &left);
391 		for (p = &buf[0]; *p; p++)
392 			fmt_putc(*p, &left);
393 	}
394 
395 	if (SIMPLEQ_NEXT(ve, next) != NULL && left > 0)
396 		(void)printf("%*s", left, "");
397 }
398 
399 void
400 groupnames(void *arg, VARENT *ve, int mode)
401 {
402 	struct kinfo_proc2 *ki;
403 	VAR *v;
404 	int left, i;
405 	const char *p;
406 
407 	if (mode == WIDTHMODE)
408 		return;
409 
410 	ki = arg;
411 	v = ve->var;
412 	if (SIMPLEQ_NEXT(ve, next) != NULL || termwidth != UNLIMITED) {
413 		if (SIMPLEQ_NEXT(ve, next) == NULL) {
414 			left = termwidth - (totwidth - v->width);
415 			if (left < 1) /* already wrapped, just use std width */
416 				left = v->width;
417 		} else
418 			left = v->width;
419 	} else
420 		left = -1;
421 
422 	if (ki->p_ngroups == 0)
423 		fmt_putc('-', &left);
424 
425 	for (i = 0; i < ki->p_ngroups; i++) {
426 		if (i)
427 			fmt_putc(' ', &left);
428 		for (p = group_from_gid(ki->p_groups[i], 0); *p; p++)
429 			fmt_putc(*p, &left);
430 	}
431 
432 	if (SIMPLEQ_NEXT(ve, next) != NULL && left > 0)
433 		(void)printf("%*s", left, "");
434 }
435 
436 void
437 ucomm(void *arg, VARENT *ve, int mode)
438 {
439 	struct kinfo_proc2 *k;
440 	VAR *v;
441 
442 	k = arg;
443 	v = ve->var;
444 	strprintorsetwidth(v, k->p_comm, mode);
445 }
446 
447 void
448 emul(void *arg, VARENT *ve, int mode)
449 {
450 	struct kinfo_proc2 *k;
451 	VAR *v;
452 
453 	k = arg;
454 	v = ve->var;
455 	strprintorsetwidth(v, k->p_ename, mode);
456 }
457 
458 void
459 logname(void *arg, VARENT *ve, int mode)
460 {
461 	struct kinfo_proc2 *k;
462 	VAR *v;
463 
464 	k = arg;
465 	v = ve->var;
466 	strprintorsetwidth(v, k->p_login, mode);
467 }
468 
469 void
470 state(void *arg, VARENT *ve, int mode)
471 {
472 	struct kinfo_proc2 *k;
473 	int flag, is_zombie;
474 	char *cp;
475 	VAR *v;
476 	char buf[16];
477 
478 	k = arg;
479 	is_zombie = 0;
480 	v = ve->var;
481 	flag = k->p_flag;
482 	cp = buf;
483 
484 	/*
485 	 * NOTE: There are historical letters, which are no longer used:
486 	 *
487 	 * - W: indicated that process is swapped out.
488 	 * - L: indicated non-zero l_holdcnt (i.e. that process was
489 	 *   prevented from swapping-out.
490 	 *
491 	 * These letters should not be used for new states to avoid
492 	 * conflicts with old applications which might depend on them.
493 	 */
494 	switch (k->p_stat) {
495 
496 	case LSSTOP:
497 		*cp = 'T';
498 		break;
499 
500 	case LSSLEEP:
501 		if (flag & L_SINTR)	/* interruptable (long) */
502 			*cp = (int)k->p_slptime >= maxslp ? 'I' : 'S';
503 		else
504 			*cp = 'D';
505 		break;
506 
507 	case LSRUN:
508 	case LSIDL:
509 		*cp = 'R';
510 		break;
511 
512 	case LSONPROC:
513 		*cp = 'O';
514 		break;
515 
516 	case LSZOMB:
517 		*cp = 'Z';
518 		is_zombie = 1;
519 		break;
520 
521 	case LSSUSPENDED:
522 		*cp = 'U';
523 		break;
524 
525 	default:
526 		*cp = '?';
527 	}
528 	cp++;
529 	if (k->p_nice < NZERO)
530 		*cp++ = '<';
531 	else if (k->p_nice > NZERO)
532 		*cp++ = 'N';
533 	if (flag & P_TRACED)
534 		*cp++ = 'X';
535 	if (flag & P_WEXIT && !is_zombie)
536 		*cp++ = 'E';
537 	if (flag & P_PPWAIT)
538 		*cp++ = 'V';
539 	if (flag & P_SYSTEM)
540 		*cp++ = 'K';
541 	if (k->p_eflag & EPROC_SLEADER)
542 		*cp++ = 's';
543 	if (flag & P_SA)
544 		*cp++ = 'a';
545 	else if (k->p_nlwps > 1)
546 		*cp++ = 'l';
547 	if ((flag & P_CONTROLT) && k->p__pgid == k->p_tpgid)
548 		*cp++ = '+';
549 	*cp = '\0';
550 	strprintorsetwidth(v, buf, mode);
551 }
552 
553 void
554 lstate(void *arg, VARENT *ve, int mode)
555 {
556 	struct kinfo_lwp *k;
557 	int flag, is_zombie;
558 	char *cp;
559 	VAR *v;
560 	char buf[16];
561 
562 	k = arg;
563 	is_zombie = 0;
564 	v = ve->var;
565 	flag = k->l_flag;
566 	cp = buf;
567 
568 	switch (k->l_stat) {
569 
570 	case LSSTOP:
571 		*cp = 'T';
572 		break;
573 
574 	case LSSLEEP:
575 		if (flag & L_SINTR)	/* interruptible (long) */
576 			*cp = (int)k->l_slptime >= maxslp ? 'I' : 'S';
577 		else
578 			*cp = 'D';
579 		break;
580 
581 	case LSRUN:
582 	case LSIDL:
583 		*cp = 'R';
584 		break;
585 
586 	case LSONPROC:
587 		*cp = 'O';
588 		break;
589 
590 	case LSZOMB:
591 	case LSDEAD:
592 		*cp = 'Z';
593 		is_zombie = 1;
594 		break;
595 
596 	case LSSUSPENDED:
597 		*cp = 'U';
598 		break;
599 
600 	default:
601 		*cp = '?';
602 	}
603 	cp++;
604 	if (flag & L_SYSTEM)
605 		*cp++ = 'K';
606 	if (flag & L_SA)
607 		*cp++ = 'a';
608 	if (flag & L_DETACHED)
609 		*cp++ = '-';
610 	*cp = '\0';
611 	strprintorsetwidth(v, buf, mode);
612 }
613 
614 void
615 pnice(void *arg, VARENT *ve, int mode)
616 {
617 	struct kinfo_proc2 *k;
618 	VAR *v;
619 
620 	k = arg;
621 	v = ve->var;
622 	intprintorsetwidth(v, k->p_nice - NZERO, mode);
623 }
624 
625 void
626 pri(void *arg, VARENT *ve, int mode)
627 {
628 	struct kinfo_lwp *l;
629 	VAR *v;
630 
631 	l = arg;
632 	v = ve->var;
633 	intprintorsetwidth(v, l->l_priority, mode);
634 }
635 
636 void
637 uname(void *arg, VARENT *ve, int mode)
638 {
639 	struct kinfo_proc2 *k;
640 	VAR *v;
641 
642 	k = arg;
643 	v = ve->var;
644 	strprintorsetwidth(v, user_from_uid(k->p_uid, 0), mode);
645 }
646 
647 void
648 runame(void *arg, VARENT *ve, int mode)
649 {
650 	struct kinfo_proc2 *k;
651 	VAR *v;
652 
653 	k = arg;
654 	v = ve->var;
655 	strprintorsetwidth(v, user_from_uid(k->p_ruid, 0), mode);
656 }
657 
658 void
659 svuname(void *arg, VARENT *ve, int mode)
660 {
661 	struct kinfo_proc2 *k;
662 	VAR *v;
663 
664 	k = arg;
665 	v = ve->var;
666 	strprintorsetwidth(v, user_from_uid(k->p_svuid, 0), mode);
667 }
668 
669 void
670 gname(void *arg, VARENT *ve, int mode)
671 {
672 	struct kinfo_proc2 *k;
673 	VAR *v;
674 
675 	k = arg;
676 	v = ve->var;
677 	strprintorsetwidth(v, group_from_gid(k->p_gid, 0), mode);
678 }
679 
680 void
681 rgname(void *arg, VARENT *ve, int mode)
682 {
683 	struct kinfo_proc2 *k;
684 	VAR *v;
685 
686 	k = arg;
687 	v = ve->var;
688 	strprintorsetwidth(v, group_from_gid(k->p_rgid, 0), mode);
689 }
690 
691 void
692 svgname(void *arg, VARENT *ve, int mode)
693 {
694 	struct kinfo_proc2 *k;
695 	VAR *v;
696 
697 	k = arg;
698 	v = ve->var;
699 	strprintorsetwidth(v, group_from_gid(k->p_svgid, 0), mode);
700 }
701 
702 void
703 tdev(void *arg, VARENT *ve, int mode)
704 {
705 	struct kinfo_proc2 *k;
706 	VAR *v;
707 	dev_t dev;
708 	char buff[16];
709 
710 	k = arg;
711 	v = ve->var;
712 	dev = k->p_tdev;
713 	if (dev == NODEV) {
714 		if (mode == PRINTMODE)
715 			(void)printf("%*s", v->width, "?");
716 		else
717 			if (v->width < 2)
718 				v->width = 2;
719 	} else {
720 		(void)snprintf(buff, sizeof(buff),
721 		    "%lld/%lld", (long long)major(dev), (long long)minor(dev));
722 		strprintorsetwidth(v, buff, mode);
723 	}
724 }
725 
726 void
727 tname(void *arg, VARENT *ve, int mode)
728 {
729 	struct kinfo_proc2 *k;
730 	VAR *v;
731 	dev_t dev;
732 	const char *ttname;
733 	int noctty;
734 
735 	k = arg;
736 	v = ve->var;
737 	dev = k->p_tdev;
738 	if (dev == NODEV || (ttname = devname(dev, S_IFCHR)) == NULL) {
739 		if (mode == PRINTMODE)
740 			(void)printf("%-*s", v->width, "?");
741 		else
742 			if (v->width < 2)
743 				v->width = 2;
744 	} else {
745 		noctty = !(k->p_eflag & EPROC_CTTY) ? 1 : 0;
746 		if (mode == WIDTHMODE) {
747 			int fmtlen;
748 
749 			fmtlen = strlen(ttname) + noctty;
750 			if (v->width < fmtlen)
751 				v->width = fmtlen;
752 		} else {
753 			if (noctty)
754 				(void)printf("%-*s-", v->width - 1, ttname);
755 			else
756 				(void)printf("%-*s", v->width, ttname);
757 		}
758 	}
759 }
760 
761 void
762 longtname(void *arg, VARENT *ve, int mode)
763 {
764 	struct kinfo_proc2 *k;
765 	VAR *v;
766 	dev_t dev;
767 	const char *ttname;
768 
769 	k = arg;
770 	v = ve->var;
771 	dev = k->p_tdev;
772 	if (dev == NODEV || (ttname = devname(dev, S_IFCHR)) == NULL) {
773 		if (mode == PRINTMODE)
774 			(void)printf("%-*s", v->width, "?");
775 		else
776 			if (v->width < 2)
777 				v->width = 2;
778 	} else {
779 		strprintorsetwidth(v, ttname, mode);
780 	}
781 }
782 
783 void
784 started(void *arg, VARENT *ve, int mode)
785 {
786 	struct kinfo_proc2 *k;
787 	VAR *v;
788 	time_t startt;
789 	struct tm *tp;
790 	char buf[100], *cp;
791 
792 	k = arg;
793 	v = ve->var;
794 	if (!k->p_uvalid) {
795 		if (mode == PRINTMODE)
796 			(void)printf("%*s", v->width, "-");
797 		return;
798 	}
799 
800 	startt = k->p_ustart_sec;
801 	tp = localtime(&startt);
802 	if (now == 0)
803 		(void)time(&now);
804 	if (now - k->p_ustart_sec < SECSPERDAY)
805 		/* I *hate* SCCS... */
806 		(void)strftime(buf, sizeof(buf) - 1, "%l:%" "M%p", tp);
807 	else if (now - k->p_ustart_sec < DAYSPERWEEK * SECSPERDAY)
808 		/* I *hate* SCCS... */
809 		(void)strftime(buf, sizeof(buf) - 1, "%a%" "I%p", tp);
810 	else
811 		(void)strftime(buf, sizeof(buf) - 1, "%e%b%y", tp);
812 	/* %e and %l can start with a space. */
813 	cp = buf;
814 	if (*cp == ' ')
815 		cp++;
816 	strprintorsetwidth(v, cp, mode);
817 }
818 
819 void
820 lstarted(void *arg, VARENT *ve, int mode)
821 {
822 	struct kinfo_proc2 *k;
823 	VAR *v;
824 	time_t startt;
825 	char buf[100];
826 
827 	k = arg;
828 	v = ve->var;
829 	if (!k->p_uvalid) {
830 		/*
831 		 * Minimum width is less than header - we don't
832 		 * need to check it every time.
833 		 */
834 		if (mode == PRINTMODE)
835 			(void)printf("%*s", v->width, "-");
836 		return;
837 	}
838 	startt = k->p_ustart_sec;
839 
840 	/* assume all times are the same length */
841 	if (mode != WIDTHMODE || v->width == 0) {
842 		(void)strftime(buf, sizeof(buf) -1, "%c",
843 		    localtime(&startt));
844 		strprintorsetwidth(v, buf, mode);
845 	}
846 }
847 
848 void
849 elapsed(void *arg, VARENT *ve, int mode)
850 {
851 	struct kinfo_proc2 *k;
852 	VAR *v;
853 	int32_t origseconds, secs, mins, hours, days;
854 	int fmtlen, printed_something;
855 
856 	k = arg;
857 	v = ve->var;
858 	if (k->p_uvalid == 0) {
859 		origseconds = 0;
860 	} else {
861 		if (now == 0)
862 			(void)time(&now);
863 		origseconds = now - k->p_ustart_sec;
864 		if (origseconds < 0) {
865 			/*
866 			 * Don't try to be fancy if the machine's
867 			 * clock has been rewound to before the
868 			 * process "started".
869 			 */
870 			origseconds = 0;
871 		}
872 	}
873 
874 	secs = origseconds;
875 	mins = secs / SECSPERMIN;
876 	secs %= SECSPERMIN;
877 	hours = mins / MINSPERHOUR;
878 	mins %= MINSPERHOUR;
879 	days = hours / HOURSPERDAY;
880 	hours %= HOURSPERDAY;
881 
882 	if (mode == WIDTHMODE) {
883 		if (origseconds == 0)
884 			/* non-zero so fmtlen is calculated at least once */
885 			origseconds = 1;
886 
887 		if (origseconds > v->longestp) {
888 			v->longestp = origseconds;
889 
890 			if (days > 0) {
891 				/* +9 for "-hh:mm:ss" */
892 				fmtlen = iwidth(days) + 9;
893 			} else if (hours > 0) {
894 				/* +6 for "mm:ss" */
895 				fmtlen = iwidth(hours) + 6;
896 			} else {
897 				/* +3 for ":ss" */
898 				fmtlen = iwidth(mins) + 3;
899 			}
900 
901 			if (fmtlen > v->width)
902 				v->width = fmtlen;
903 		}
904 	} else {
905 		printed_something = 0;
906 		fmtlen = v->width;
907 
908 		if (days > 0) {
909 			(void)printf("%*d", fmtlen - 9, days);
910 			printed_something = 1;
911 		} else if (fmtlen > 9) {
912 			(void)printf("%*s", fmtlen - 9, "");
913 		}
914 		if (fmtlen > 9)
915 			fmtlen = 9;
916 
917 		if (printed_something) {
918 			(void)printf("-%.*d", fmtlen - 7, hours);
919 			printed_something = 1;
920 		} else if (hours > 0) {
921 			(void)printf("%*d", fmtlen - 6, hours);
922 			printed_something = 1;
923 		} else if (fmtlen > 6) {
924 			(void)printf("%*s", fmtlen - 6, "");
925 		}
926 		if (fmtlen > 6)
927 			fmtlen = 6;
928 
929 		/* Don't need to set fmtlen or printed_something any more... */
930 		if (printed_something) {
931 			(void)printf(":%.*d", fmtlen - 4, mins);
932 		} else if (mins > 0) {
933 			(void)printf("%*d", fmtlen - 3, mins);
934 		} else if (fmtlen > 3) {
935 			(void)printf("%*s", fmtlen - 3, "0");
936 		}
937 
938 		(void)printf(":%.2d", secs);
939 	}
940 }
941 
942 void
943 wchan(void *arg, VARENT *ve, int mode)
944 {
945 	struct kinfo_lwp *l;
946 	VAR *v;
947 	char *buf;
948 
949 	l = arg;
950 	v = ve->var;
951 	if (l->l_wchan) {
952 		if (l->l_wmesg) {
953 			strprintorsetwidth(v, l->l_wmesg, mode);
954 			v->width = min(v->width, KI_WMESGLEN);
955 		} else {
956 			(void)asprintf(&buf, "%-*" PRIx64, v->width,
957 			    l->l_wchan);
958 			if (buf == NULL)
959 				err(1, "%s", "");
960 			strprintorsetwidth(v, buf, mode);
961 			v->width = min(v->width, KI_WMESGLEN);
962 			free(buf);
963 		}
964 	} else {
965 		if (mode == PRINTMODE)
966 			(void)printf("%-*s", v->width, "-");
967 	}
968 }
969 
970 #define	pgtok(a)        (((a)*getpagesize())/1024)
971 
972 void
973 vsize(void *arg, VARENT *ve, int mode)
974 {
975 	struct kinfo_proc2 *k;
976 	VAR *v;
977 
978 	k = arg;
979 	v = ve->var;
980 	intprintorsetwidth(v, pgtok(k->p_vm_msize), mode);
981 }
982 
983 void
984 rssize(void *arg, VARENT *ve, int mode)
985 {
986 	struct kinfo_proc2 *k;
987 	VAR *v;
988 
989 	k = arg;
990 	v = ve->var;
991 	/* XXX don't have info about shared */
992 	intprintorsetwidth(v, pgtok(k->p_vm_rssize), mode);
993 }
994 
995 void
996 p_rssize(void *arg, VARENT *ve, int mode)	/* doesn't account for text */
997 {
998 	struct kinfo_proc2 *k;
999 	VAR *v;
1000 
1001 	k = arg;
1002 	v = ve->var;
1003 	intprintorsetwidth(v, pgtok(k->p_vm_rssize), mode);
1004 }
1005 
1006 void
1007 cpuid(void *arg, VARENT *ve, int mode)
1008 {
1009 	struct kinfo_lwp *l;
1010 	VAR *v;
1011 
1012 	l = arg;
1013 	v = ve->var;
1014 	intprintorsetwidth(v, l->l_cpuid, mode);
1015 }
1016 
1017 void
1018 cputime(void *arg, VARENT *ve, int mode)
1019 {
1020 	struct kinfo_proc2 *k;
1021 	VAR *v;
1022 	int32_t secs;
1023 	int32_t psecs;	/* "parts" of a second. first micro, then centi */
1024 	int fmtlen;
1025 
1026 	k = arg;
1027 	v = ve->var;
1028 
1029 	/*
1030 	 * This counts time spent handling interrupts.  We could
1031 	 * fix this, but it is not 100% trivial (and interrupt
1032 	 * time fractions only work on the sparc anyway).	XXX
1033 	 */
1034 	secs = k->p_rtime_sec;
1035 	psecs = k->p_rtime_usec;
1036 	if (sumrusage) {
1037 		secs += k->p_uctime_sec;
1038 		psecs += k->p_uctime_usec;
1039 	}
1040 	/*
1041 	 * round and scale to 100's
1042 	 */
1043 	psecs = (psecs + 5000) / 10000;
1044 	secs += psecs / 100;
1045 	psecs = psecs % 100;
1046 
1047 	if (mode == WIDTHMODE) {
1048 		/*
1049 		 * Ugg, this is the only field where a value of 0 is longer
1050 		 * than the column title.
1051 		 * Use SECSPERMIN, because secs is divided by that when
1052 		 * passed to iwidth().
1053 		 */
1054 		if (secs == 0)
1055 			secs = SECSPERMIN;
1056 
1057 		if (secs > v->longestp) {
1058 			v->longestp = secs;
1059 			/* "+6" for the ":%02ld.%02ld" in the printf() below */
1060 			fmtlen = iwidth(secs / SECSPERMIN) + 6;
1061 			if (fmtlen > v->width)
1062 				v->width = fmtlen;
1063 		}
1064 	} else {
1065 		(void)printf("%*ld:%02ld.%02ld", v->width - 6,
1066 		    (long)(secs / SECSPERMIN), (long)(secs % SECSPERMIN),
1067 		    (long)psecs);
1068 	}
1069 }
1070 
1071 double
1072 getpcpu(k)
1073 	const struct kinfo_proc2 *k;
1074 {
1075 	static int failure;
1076 
1077 	if (!nlistread)
1078 		failure = (kd) ? donlist() : 1;
1079 	if (failure)
1080 		return (0.0);
1081 
1082 #define	fxtofl(fixpt)	((double)(fixpt) / fscale)
1083 
1084 	if (k->p_swtime == 0 || k->p_realstat == SZOMB)
1085 		return (0.0);
1086 	if (rawcpu)
1087 		return (100.0 * fxtofl(k->p_pctcpu));
1088 	return (100.0 * fxtofl(k->p_pctcpu) /
1089 		(1.0 - exp(k->p_swtime * log(ccpu))));
1090 }
1091 
1092 void
1093 pcpu(void *arg, VARENT *ve, int mode)
1094 {
1095 	struct kinfo_proc2 *k;
1096 	VAR *v;
1097 	double dbl;
1098 
1099 	k = arg;
1100 	v = ve->var;
1101 	dbl = getpcpu(k);
1102 	doubleprintorsetwidth(v, dbl, (dbl >= 99.95) ? 0 : 1, mode);
1103 }
1104 
1105 double
1106 getpmem(k)
1107 	const struct kinfo_proc2 *k;
1108 {
1109 	static int failure;
1110 	double fracmem;
1111 	int szptudot;
1112 
1113 	if (!nlistread)
1114 		failure = (kd) ? donlist() : 1;
1115 	if (failure)
1116 		return (0.0);
1117 
1118 	/* XXX want pmap ptpages, segtab, etc. (per architecture) */
1119 	szptudot = uspace/getpagesize();
1120 	/* XXX don't have info about shared */
1121 	fracmem = ((float)k->p_vm_rssize + szptudot)/mempages;
1122 	return (100.0 * fracmem);
1123 }
1124 
1125 void
1126 pmem(void *arg, VARENT *ve, int mode)
1127 {
1128 	struct kinfo_proc2 *k;
1129 	VAR *v;
1130 
1131 	k = arg;
1132 	v = ve->var;
1133 	doubleprintorsetwidth(v, getpmem(k), 1, mode);
1134 }
1135 
1136 void
1137 pagein(void *arg, VARENT *ve, int mode)
1138 {
1139 	struct kinfo_proc2 *k;
1140 	VAR *v;
1141 
1142 	k = arg;
1143 	v = ve->var;
1144 	intprintorsetwidth(v, k->p_uvalid ? k->p_uru_majflt : 0, mode);
1145 }
1146 
1147 void
1148 maxrss(void *arg, VARENT *ve, int mode)
1149 {
1150 	VAR *v;
1151 
1152 	v = ve->var;
1153 	/* No need to check width! */
1154 	if (mode == PRINTMODE)
1155 		(void)printf("%*s", v->width, "-");
1156 }
1157 
1158 void
1159 tsize(void *arg, VARENT *ve, int mode)
1160 {
1161 	struct kinfo_proc2 *k;
1162 	VAR *v;
1163 
1164 	k = arg;
1165 	v = ve->var;
1166 	intprintorsetwidth(v, pgtok(k->p_vm_tsize), mode);
1167 }
1168 
1169 /*
1170  * Generic output routines.  Print fields from various prototype
1171  * structures.
1172  */
1173 static void
1174 printval(bp, v, mode)
1175 	void *bp;
1176 	VAR *v;
1177 	int mode;
1178 {
1179 	static char ofmt[32] = "%";
1180 	int width, vok, fmtlen;
1181 	const char *fcp;
1182 	char *cp;
1183 	int64_t val;
1184 	u_int64_t uval;
1185 
1186 	val = 0;	/* XXXGCC -Wuninitialized [hpcarm] */
1187 	uval = 0;	/* XXXGCC -Wuninitialized [hpcarm] */
1188 
1189 	/*
1190 	 * Note that the "INF127" check is nonsensical for types
1191 	 * that are or can be signed.
1192 	 */
1193 #define	GET(type)		(*(type *)bp)
1194 #define	CHK_INF127(n)		(((n) > 127) && (v->flag & INF127) ? 127 : (n))
1195 
1196 #define	VSIGN	1
1197 #define	VUNSIGN	2
1198 #define	VPTR	3
1199 
1200 	if (mode == WIDTHMODE) {
1201 		vok = 0;
1202 		switch (v->type) {
1203 		case CHAR:
1204 			val = GET(char);
1205 			vok = VSIGN;
1206 			break;
1207 		case UCHAR:
1208 			uval = CHK_INF127(GET(u_char));
1209 			vok = VUNSIGN;
1210 			break;
1211 		case SHORT:
1212 			val = GET(short);
1213 			vok = VSIGN;
1214 			break;
1215 		case USHORT:
1216 			uval = CHK_INF127(GET(u_short));
1217 			vok = VUNSIGN;
1218 			break;
1219 		case INT32:
1220 			val = GET(int32_t);
1221 			vok = VSIGN;
1222 			break;
1223 		case INT:
1224 			val = GET(int);
1225 			vok = VSIGN;
1226 			break;
1227 		case UINT:
1228 		case UINT32:
1229 			uval = CHK_INF127(GET(u_int));
1230 			vok = VUNSIGN;
1231 			break;
1232 		case LONG:
1233 			val = GET(long);
1234 			vok = VSIGN;
1235 			break;
1236 		case ULONG:
1237 			uval = CHK_INF127(GET(u_long));
1238 			vok = VUNSIGN;
1239 			break;
1240 		case KPTR:
1241 			uval = GET(u_int64_t);
1242 			vok = VPTR;
1243 			break;
1244 		case KPTR24:
1245 			uval = GET(u_int64_t);
1246 			uval &= 0xffffff;
1247 			vok = VPTR;
1248 			break;
1249 		case INT64:
1250 			val = GET(int64_t);
1251 			vok = VSIGN;
1252 			break;
1253 		case UINT64:
1254 			uval = CHK_INF127(GET(u_int64_t));
1255 			vok = VUNSIGN;
1256 			break;
1257 
1258 		case SIGLIST:
1259 		default:
1260 			/* nothing... */;
1261 		}
1262 		switch (vok) {
1263 		case VSIGN:
1264 			if (val < 0 && val < v->longestn) {
1265 				v->longestn = val;
1266 				fmtlen = iwidth(-val) + 1;
1267 				if (fmtlen > v->width)
1268 					v->width = fmtlen;
1269 			} else if (val > 0 && val > v->longestp) {
1270 				v->longestp = val;
1271 				fmtlen = iwidth(val);
1272 				if (fmtlen > v->width)
1273 					v->width = fmtlen;
1274 			}
1275 			return;
1276 		case VUNSIGN:
1277 			if (uval > v->longestu) {
1278 				v->longestu = uval;
1279 				v->width = iwidth(uval);
1280 			}
1281 			return;
1282 		case VPTR:
1283 			fmtlen = 0;
1284 			while (uval > 0) {
1285 				uval >>= 4;
1286 				fmtlen++;
1287 			}
1288 			if (fmtlen > v->width)
1289 				v->width = fmtlen;
1290 			return;
1291 		}
1292 	}
1293 
1294 	width = v->width;
1295 	cp = ofmt + 1;
1296 	fcp = v->fmt;
1297 	if (v->flag & LJUST)
1298 		*cp++ = '-';
1299 	*cp++ = '*';
1300 	while ((*cp++ = *fcp++) != '\0')
1301 		continue;
1302 
1303 	switch (v->type) {
1304 	case CHAR:
1305 		(void)printf(ofmt, width, GET(char));
1306 		return;
1307 	case UCHAR:
1308 		(void)printf(ofmt, width, CHK_INF127(GET(u_char)));
1309 		return;
1310 	case SHORT:
1311 		(void)printf(ofmt, width, GET(short));
1312 		return;
1313 	case USHORT:
1314 		(void)printf(ofmt, width, CHK_INF127(GET(u_short)));
1315 		return;
1316 	case INT:
1317 		(void)printf(ofmt, width, GET(int));
1318 		return;
1319 	case UINT:
1320 		(void)printf(ofmt, width, CHK_INF127(GET(u_int)));
1321 		return;
1322 	case LONG:
1323 		(void)printf(ofmt, width, GET(long));
1324 		return;
1325 	case ULONG:
1326 		(void)printf(ofmt, width, CHK_INF127(GET(u_long)));
1327 		return;
1328 	case KPTR:
1329 		(void)printf(ofmt, width, GET(u_int64_t));
1330 		return;
1331 	case KPTR24:
1332 		(void)printf(ofmt, width, GET(u_int64_t) & 0xffffff);
1333 		return;
1334 	case INT32:
1335 		(void)printf(ofmt, width, GET(int32_t));
1336 		return;
1337 	case UINT32:
1338 		(void)printf(ofmt, width, CHK_INF127(GET(u_int32_t)));
1339 		return;
1340 	case SIGLIST:
1341 		{
1342 			sigset_t *s = (sigset_t *)(void *)bp;
1343 			size_t i;
1344 #define	SIGSETSIZE	(sizeof(s->__bits) / sizeof(s->__bits[0]))
1345 			char buf[SIGSETSIZE * 8 + 1];
1346 
1347 			for (i = 0; i < SIGSETSIZE; i++)
1348 				(void)snprintf(&buf[i * 8], 9, "%.8x",
1349 				    s->__bits[(SIGSETSIZE - 1) - i]);
1350 
1351 			/* Skip leading zeroes */
1352 			for (i = 0; buf[i] == '0'; i++)
1353 				continue;
1354 
1355 			if (buf[i] == '\0')
1356 				i--;
1357 			strprintorsetwidth(v, buf + i, mode);
1358 #undef SIGSETSIZE
1359 		}
1360 		return;
1361 	case INT64:
1362 		(void)printf(ofmt, width, GET(int64_t));
1363 		return;
1364 	case UINT64:
1365 		(void)printf(ofmt, width, CHK_INF127(GET(u_int64_t)));
1366 		return;
1367 	default:
1368 		errx(1, "unknown type %d", v->type);
1369 	}
1370 #undef GET
1371 #undef CHK_INF127
1372 }
1373 
1374 void
1375 pvar(void *arg, VARENT *ve, int mode)
1376 {
1377 	VAR *v;
1378 
1379 	v = ve->var;
1380 	if (v->flag & UAREA && !((struct kinfo_proc2 *)arg)->p_uvalid) {
1381 		if (mode == PRINTMODE)
1382 			(void)printf("%*s", v->width, "-");
1383 		return;
1384 	}
1385 
1386 	(void)printval((char *)arg + v->off, v, mode);
1387 }
1388 
1389 void
1390 putimeval(void *arg, VARENT *ve, int mode)
1391 {
1392 	VAR *v = ve->var;
1393 	struct kinfo_proc2 *k = arg;
1394 	ulong secs = *(uint32_t *)((char *)arg + v->off);
1395 	ulong usec = *(uint32_t *)((char *)arg + v->off + sizeof (uint32_t));
1396 	int fmtlen;
1397 
1398 	if (!k->p_uvalid) {
1399 		if (mode == PRINTMODE)
1400 			(void)printf("%*s", v->width, "-");
1401 		return;
1402 	}
1403 
1404 	if (mode == WIDTHMODE) {
1405 		if (secs == 0)
1406 			/* non-zero so fmtlen is calculated at least once */
1407 			secs = 1;
1408 		if (secs > v->longestu) {
1409 			v->longestu = secs;
1410 			if (secs <= 999)
1411 				/* sss.ssssss */
1412 				fmtlen = iwidth(secs) + 6 + 1;
1413 			else
1414 				/* hh:mm:ss.ss */
1415 				fmtlen = iwidth((secs + 1) / SECSPERHOUR)
1416 					+ 2 + 1 + 2 + 1 + 2 + 1;
1417 			if (fmtlen > v->width)
1418 				v->width = fmtlen;
1419 		}
1420 		return;
1421 	}
1422 
1423 	if (secs < 999)
1424 		(void)printf( "%*lu.%.6lu", v->width - 6 - 1, secs, usec);
1425 	else {
1426 		uint h, m;
1427 		usec += 5000;
1428 		if (usec >= 1000000) {
1429 			usec -= 1000000;
1430 			secs++;
1431 		}
1432 		m = secs / SECSPERMIN;
1433 		secs -= m * SECSPERMIN;
1434 		h = m / MINSPERHOUR;
1435 		m -= h * MINSPERHOUR;
1436 		(void)printf( "%*u:%.2u:%.2lu.%.2lu", v->width - 9, h, m, secs,
1437 		    usec / 10000u );
1438 	}
1439 }
1440 
1441 void
1442 lname(void *arg, VARENT *ve, int mode)
1443 {
1444 	struct kinfo_lwp *l;
1445 	VAR *v;
1446 
1447 	l = arg;
1448 	v = ve->var;
1449 	if (l->l_name && l->l_name[0] != '\0') {
1450 		strprintorsetwidth(v, l->l_name, mode);
1451 		v->width = min(v->width, KI_LNAMELEN);
1452 	} else {
1453 		if (mode == PRINTMODE)
1454 			(void)printf("%-*s", v->width, "-");
1455 	}
1456 }
1457