xref: /minix/bin/ps/print.c (revision b89261ba)
1 /*	$NetBSD: print.c,v 1.123 2014/11/15 01:58:34 joerg 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 1.123 2014/11/15 01:58:34 joerg 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 *, enum mode);
97 static int   titlecmp(char *, char **);
98 
99 static void  doubleprintorsetwidth(VAR *, double, int, enum mode);
100 static void  intprintorsetwidth(VAR *, int, enum mode);
101 static void  strprintorsetwidth(VAR *, const char *, enum mode);
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, enum mode 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, enum mode 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, enum mode 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, enum mode 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, enum mode 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, enum mode 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, enum mode 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, enum mode 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, enum mode 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, enum mode 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, enum mode mode)
555 {
556 	struct kinfo_lwp *k;
557 	int flag;
558 	char *cp;
559 	VAR *v;
560 	char buf[16];
561 
562 	k = arg;
563 	v = ve->var;
564 	flag = k->l_flag;
565 	cp = buf;
566 
567 	switch (k->l_stat) {
568 
569 	case LSSTOP:
570 		*cp = 'T';
571 		break;
572 
573 	case LSSLEEP:
574 		if (flag & L_SINTR)	/* interruptible (long) */
575 			*cp = (int)k->l_slptime >= maxslp ? 'I' : 'S';
576 		else
577 			*cp = 'D';
578 		break;
579 
580 	case LSRUN:
581 	case LSIDL:
582 		*cp = 'R';
583 		break;
584 
585 	case LSONPROC:
586 		*cp = 'O';
587 		break;
588 
589 	case LSZOMB:
590 	case LSDEAD:
591 		*cp = 'Z';
592 		break;
593 
594 	case LSSUSPENDED:
595 		*cp = 'U';
596 		break;
597 
598 	default:
599 		*cp = '?';
600 	}
601 	cp++;
602 	if (flag & L_SYSTEM)
603 		*cp++ = 'K';
604 	if (flag & L_SA)
605 		*cp++ = 'a';
606 	if (flag & L_DETACHED)
607 		*cp++ = '-';
608 	*cp = '\0';
609 	strprintorsetwidth(v, buf, mode);
610 }
611 
612 void
613 pnice(void *arg, VARENT *ve, enum mode mode)
614 {
615 	struct kinfo_proc2 *k;
616 	VAR *v;
617 
618 	k = arg;
619 	v = ve->var;
620 	intprintorsetwidth(v, k->p_nice - NZERO, mode);
621 }
622 
623 void
624 pri(void *arg, VARENT *ve, enum mode mode)
625 {
626 	struct kinfo_lwp *l;
627 	VAR *v;
628 
629 	l = arg;
630 	v = ve->var;
631 	intprintorsetwidth(v, l->l_priority, mode);
632 }
633 
634 void
635 uname(void *arg, VARENT *ve, enum mode mode)
636 {
637 	struct kinfo_proc2 *k;
638 	VAR *v;
639 
640 	k = arg;
641 	v = ve->var;
642 	strprintorsetwidth(v, user_from_uid(k->p_uid, 0), mode);
643 }
644 
645 void
646 runame(void *arg, VARENT *ve, enum mode mode)
647 {
648 	struct kinfo_proc2 *k;
649 	VAR *v;
650 
651 	k = arg;
652 	v = ve->var;
653 	strprintorsetwidth(v, user_from_uid(k->p_ruid, 0), mode);
654 }
655 
656 void
657 svuname(void *arg, VARENT *ve, enum mode mode)
658 {
659 	struct kinfo_proc2 *k;
660 	VAR *v;
661 
662 	k = arg;
663 	v = ve->var;
664 	strprintorsetwidth(v, user_from_uid(k->p_svuid, 0), mode);
665 }
666 
667 void
668 gname(void *arg, VARENT *ve, enum mode mode)
669 {
670 	struct kinfo_proc2 *k;
671 	VAR *v;
672 
673 	k = arg;
674 	v = ve->var;
675 	strprintorsetwidth(v, group_from_gid(k->p_gid, 0), mode);
676 }
677 
678 void
679 rgname(void *arg, VARENT *ve, enum mode mode)
680 {
681 	struct kinfo_proc2 *k;
682 	VAR *v;
683 
684 	k = arg;
685 	v = ve->var;
686 	strprintorsetwidth(v, group_from_gid(k->p_rgid, 0), mode);
687 }
688 
689 void
690 svgname(void *arg, VARENT *ve, enum mode mode)
691 {
692 	struct kinfo_proc2 *k;
693 	VAR *v;
694 
695 	k = arg;
696 	v = ve->var;
697 	strprintorsetwidth(v, group_from_gid(k->p_svgid, 0), mode);
698 }
699 
700 void
701 tdev(void *arg, VARENT *ve, enum mode mode)
702 {
703 	struct kinfo_proc2 *k;
704 	VAR *v;
705 	dev_t dev;
706 	char buff[16];
707 
708 	k = arg;
709 	v = ve->var;
710 	dev = k->p_tdev;
711 	if (dev == NODEV) {
712 		if (mode == PRINTMODE)
713 			(void)printf("%*s", v->width, "?");
714 		else
715 			if (v->width < 2)
716 				v->width = 2;
717 	} else {
718 		(void)snprintf(buff, sizeof(buff),
719 		    "%lld/%lld", (long long)major(dev), (long long)minor(dev));
720 		strprintorsetwidth(v, buff, mode);
721 	}
722 }
723 
724 void
725 tname(void *arg, VARENT *ve, enum mode mode)
726 {
727 	struct kinfo_proc2 *k;
728 	VAR *v;
729 	dev_t dev;
730 	const char *ttname;
731 	int noctty;
732 
733 	k = arg;
734 	v = ve->var;
735 	dev = k->p_tdev;
736 	if (dev == NODEV || (ttname = devname(dev, S_IFCHR)) == NULL) {
737 		if (mode == PRINTMODE)
738 			(void)printf("%-*s", v->width, "?");
739 		else
740 			if (v->width < 2)
741 				v->width = 2;
742 	} else {
743 #ifdef __minix
744 		/* Actually shorten TTY names.  "console" is *really* long. */
745 		if (strcmp(ttname, "console") == 0)
746 			ttname = "co";
747 		else if (strncmp(ttname, "tty", 3) == 0 && ttname[3] != '\0')
748 			ttname += 3;
749 		else if (strncmp(ttname, "pts/", 4) == 0 && ttname[4] != '\0')
750 			ttname += 4; /* this is what FreeBSD does */
751 #endif /* __minix */
752 		noctty = !(k->p_eflag & EPROC_CTTY) ? 1 : 0;
753 		if (mode == WIDTHMODE) {
754 			int fmtlen;
755 
756 			fmtlen = strlen(ttname) + noctty;
757 			if (v->width < fmtlen)
758 				v->width = fmtlen;
759 		} else {
760 			if (noctty)
761 				(void)printf("%-*s-", v->width - 1, ttname);
762 			else
763 				(void)printf("%-*s", v->width, ttname);
764 		}
765 	}
766 }
767 
768 void
769 longtname(void *arg, VARENT *ve, enum mode mode)
770 {
771 	struct kinfo_proc2 *k;
772 	VAR *v;
773 	dev_t dev;
774 	const char *ttname;
775 
776 	k = arg;
777 	v = ve->var;
778 	dev = k->p_tdev;
779 	if (dev == NODEV || (ttname = devname(dev, S_IFCHR)) == NULL) {
780 		if (mode == PRINTMODE)
781 			(void)printf("%-*s", v->width, "?");
782 		else
783 			if (v->width < 2)
784 				v->width = 2;
785 	} else {
786 		strprintorsetwidth(v, ttname, mode);
787 	}
788 }
789 
790 void
791 started(void *arg, VARENT *ve, enum mode mode)
792 {
793 	struct kinfo_proc2 *k;
794 	VAR *v;
795 	time_t startt;
796 	struct tm *tp;
797 	char buf[100], *cp;
798 
799 	k = arg;
800 	v = ve->var;
801 	if (!k->p_uvalid) {
802 		if (mode == PRINTMODE)
803 			(void)printf("%*s", v->width, "-");
804 		return;
805 	}
806 
807 	startt = k->p_ustart_sec;
808 	tp = localtime(&startt);
809 	if (now == 0)
810 		(void)time(&now);
811 	if (now - k->p_ustart_sec < SECSPERDAY)
812 		/* I *hate* SCCS... */
813 		(void)strftime(buf, sizeof(buf) - 1, "%l:%" "M%p", tp);
814 	else if (now - k->p_ustart_sec < DAYSPERWEEK * SECSPERDAY)
815 		/* I *hate* SCCS... */
816 		(void)strftime(buf, sizeof(buf) - 1, "%a%" "I%p", tp);
817 	else
818 		(void)strftime(buf, sizeof(buf) - 1, "%e%b%y", tp);
819 	/* %e and %l can start with a space. */
820 	cp = buf;
821 	if (*cp == ' ')
822 		cp++;
823 	strprintorsetwidth(v, cp, mode);
824 }
825 
826 void
827 lstarted(void *arg, VARENT *ve, enum mode mode)
828 {
829 	struct kinfo_proc2 *k;
830 	VAR *v;
831 	time_t startt;
832 	char buf[100];
833 
834 	k = arg;
835 	v = ve->var;
836 	if (!k->p_uvalid) {
837 		/*
838 		 * Minimum width is less than header - we don't
839 		 * need to check it every time.
840 		 */
841 		if (mode == PRINTMODE)
842 			(void)printf("%*s", v->width, "-");
843 		return;
844 	}
845 	startt = k->p_ustart_sec;
846 
847 	/* assume all times are the same length */
848 	if (mode != WIDTHMODE || v->width == 0) {
849 		(void)strftime(buf, sizeof(buf) -1, "%c",
850 		    localtime(&startt));
851 		strprintorsetwidth(v, buf, mode);
852 	}
853 }
854 
855 void
856 elapsed(void *arg, VARENT *ve, enum mode mode)
857 {
858 	struct kinfo_proc2 *k;
859 	VAR *v;
860 	int32_t origseconds, secs, mins, hours, days;
861 	int fmtlen, printed_something;
862 
863 	k = arg;
864 	v = ve->var;
865 	if (k->p_uvalid == 0) {
866 		origseconds = 0;
867 	} else {
868 		if (now == 0)
869 			(void)time(&now);
870 		origseconds = now - k->p_ustart_sec;
871 		if (origseconds < 0) {
872 			/*
873 			 * Don't try to be fancy if the machine's
874 			 * clock has been rewound to before the
875 			 * process "started".
876 			 */
877 			origseconds = 0;
878 		}
879 	}
880 
881 	secs = origseconds;
882 	mins = secs / SECSPERMIN;
883 	secs %= SECSPERMIN;
884 	hours = mins / MINSPERHOUR;
885 	mins %= MINSPERHOUR;
886 	days = hours / HOURSPERDAY;
887 	hours %= HOURSPERDAY;
888 
889 	if (mode == WIDTHMODE) {
890 		if (origseconds == 0)
891 			/* non-zero so fmtlen is calculated at least once */
892 			origseconds = 1;
893 
894 		if (origseconds > v->longestp) {
895 			v->longestp = origseconds;
896 
897 			if (days > 0) {
898 				/* +9 for "-hh:mm:ss" */
899 				fmtlen = iwidth(days) + 9;
900 			} else if (hours > 0) {
901 				/* +6 for "mm:ss" */
902 				fmtlen = iwidth(hours) + 6;
903 			} else {
904 				/* +3 for ":ss" */
905 				fmtlen = iwidth(mins) + 3;
906 			}
907 
908 			if (fmtlen > v->width)
909 				v->width = fmtlen;
910 		}
911 	} else {
912 		printed_something = 0;
913 		fmtlen = v->width;
914 
915 		if (days > 0) {
916 			(void)printf("%*d", fmtlen - 9, days);
917 			printed_something = 1;
918 		} else if (fmtlen > 9) {
919 			(void)printf("%*s", fmtlen - 9, "");
920 		}
921 		if (fmtlen > 9)
922 			fmtlen = 9;
923 
924 		if (printed_something) {
925 			(void)printf("-%.*d", fmtlen - 7, hours);
926 			printed_something = 1;
927 		} else if (hours > 0) {
928 			(void)printf("%*d", fmtlen - 6, hours);
929 			printed_something = 1;
930 		} else if (fmtlen > 6) {
931 			(void)printf("%*s", fmtlen - 6, "");
932 		}
933 		if (fmtlen > 6)
934 			fmtlen = 6;
935 
936 		/* Don't need to set fmtlen or printed_something any more... */
937 		if (printed_something) {
938 			(void)printf(":%.*d", fmtlen - 4, mins);
939 		} else if (mins > 0) {
940 			(void)printf("%*d", fmtlen - 3, mins);
941 		} else if (fmtlen > 3) {
942 			(void)printf("%*s", fmtlen - 3, "0");
943 		}
944 
945 		(void)printf(":%.2d", secs);
946 	}
947 }
948 
949 void
950 wchan(void *arg, VARENT *ve, enum mode mode)
951 {
952 	struct kinfo_lwp *l;
953 	VAR *v;
954 	char *buf;
955 
956 	l = arg;
957 	v = ve->var;
958 	if (l->l_wchan) {
959 		if (l->l_wmesg[0]) {
960 			strprintorsetwidth(v, l->l_wmesg, mode);
961 			v->width = min(v->width, KI_WMESGLEN);
962 		} else {
963 			(void)asprintf(&buf, "%-*" PRIx64, v->width,
964 			    l->l_wchan);
965 			if (buf == NULL)
966 				err(1, "%s", "");
967 			strprintorsetwidth(v, buf, mode);
968 			v->width = min(v->width, KI_WMESGLEN);
969 			free(buf);
970 		}
971 	} else {
972 		if (mode == PRINTMODE)
973 			(void)printf("%-*s", v->width, "-");
974 	}
975 }
976 
977 #define	pgtok(a)        (((a)*(size_t)getpagesize())/1024)
978 
979 void
980 vsize(void *arg, VARENT *ve, enum mode mode)
981 {
982 	struct kinfo_proc2 *k;
983 	VAR *v;
984 
985 	k = arg;
986 	v = ve->var;
987 	intprintorsetwidth(v, pgtok(k->p_vm_msize), mode);
988 }
989 
990 void
991 rssize(void *arg, VARENT *ve, enum mode mode)
992 {
993 	struct kinfo_proc2 *k;
994 	VAR *v;
995 
996 	k = arg;
997 	v = ve->var;
998 	/* XXX don't have info about shared */
999 	intprintorsetwidth(v, pgtok(k->p_vm_rssize), mode);
1000 }
1001 
1002 void
1003 p_rssize(void *arg, VARENT *ve, enum mode mode)	/* doesn't account for text */
1004 {
1005 	struct kinfo_proc2 *k;
1006 	VAR *v;
1007 
1008 	k = arg;
1009 	v = ve->var;
1010 	intprintorsetwidth(v, pgtok(k->p_vm_rssize), mode);
1011 }
1012 
1013 void
1014 cpuid(void *arg, VARENT *ve, enum mode mode)
1015 {
1016 	struct kinfo_lwp *l;
1017 	VAR *v;
1018 
1019 	l = arg;
1020 	v = ve->var;
1021 	intprintorsetwidth(v, l->l_cpuid, mode);
1022 }
1023 
1024 static void
1025 cputime1(int32_t secs, int32_t psecs, VAR *v, enum mode mode)
1026 {
1027 	int fmtlen;
1028 
1029 	/*
1030 	 * round and scale to 100's
1031 	 */
1032 	psecs = (psecs + 5000) / 10000;
1033 	secs += psecs / 100;
1034 	psecs = psecs % 100;
1035 
1036 	if (mode == WIDTHMODE) {
1037 		/*
1038 		 * Ugg, this is the only field where a value of 0 is longer
1039 		 * than the column title.
1040 		 * Use SECSPERMIN, because secs is divided by that when
1041 		 * passed to iwidth().
1042 		 */
1043 		if (secs == 0)
1044 			secs = SECSPERMIN;
1045 
1046 		if (secs > v->longestp) {
1047 			v->longestp = secs;
1048 			/* "+6" for the ":%02ld.%02ld" in the printf() below */
1049 			fmtlen = iwidth(secs / SECSPERMIN) + 6;
1050 			if (fmtlen > v->width)
1051 				v->width = fmtlen;
1052 		}
1053 	} else {
1054 		(void)printf("%*ld:%02ld.%02ld", v->width - 6,
1055 		    (long)(secs / SECSPERMIN), (long)(secs % SECSPERMIN),
1056 		    (long)psecs);
1057 	}
1058 }
1059 
1060 void
1061 cputime(void *arg, VARENT *ve, enum mode mode)
1062 {
1063 	struct kinfo_proc2 *k;
1064 	VAR *v;
1065 	int32_t secs;
1066 	int32_t psecs;	/* "parts" of a second. first micro, then centi */
1067 
1068 	k = arg;
1069 	v = ve->var;
1070 
1071 	/*
1072 	 * This counts time spent handling interrupts.  We could
1073 	 * fix this, but it is not 100% trivial (and interrupt
1074 	 * time fractions only work on the sparc anyway).	XXX
1075 	 */
1076 	secs = k->p_rtime_sec;
1077 	psecs = k->p_rtime_usec;
1078 	if (sumrusage) {
1079 		secs += k->p_uctime_sec;
1080 		psecs += k->p_uctime_usec;
1081 	}
1082 
1083 	cputime1(secs, psecs, v, mode);
1084 }
1085 
1086 void
1087 lcputime(void *arg, VARENT *ve, enum mode mode)
1088 {
1089 	struct kinfo_lwp *l;
1090 	VAR *v;
1091 	int32_t secs;
1092 	int32_t psecs;	/* "parts" of a second. first micro, then centi */
1093 
1094 	l = arg;
1095 	v = ve->var;
1096 
1097 	secs = l->l_rtime_sec;
1098 	psecs = l->l_rtime_usec;
1099 
1100 	cputime1(secs, psecs, v, mode);
1101 }
1102 
1103 double
1104 getpcpu(const struct kinfo_proc2 *k)
1105 {
1106 	static int failure;
1107 
1108 	if (!nlistread)
1109 		failure = (kd) ? donlist() : 1;
1110 	if (failure)
1111 		return (0.0);
1112 
1113 #define	fxtofl(fixpt)	((double)(fixpt) / fscale)
1114 
1115 	if (k->p_swtime == 0 || k->p_realstat == SZOMB)
1116 		return (0.0);
1117 	if (rawcpu)
1118 		return (100.0 * fxtofl(k->p_pctcpu));
1119 	return (100.0 * fxtofl(k->p_pctcpu) /
1120 		(1.0 - exp(k->p_swtime * log(ccpu))));
1121 }
1122 
1123 void
1124 pcpu(void *arg, VARENT *ve, enum mode mode)
1125 {
1126 	struct kinfo_proc2 *k;
1127 	VAR *v;
1128 	double dbl;
1129 
1130 	k = arg;
1131 	v = ve->var;
1132 	dbl = getpcpu(k);
1133 	doubleprintorsetwidth(v, dbl, (dbl >= 99.95) ? 0 : 1, mode);
1134 }
1135 
1136 double
1137 getpmem(const struct kinfo_proc2 *k)
1138 {
1139 	static int failure;
1140 	double fracmem;
1141 	int szptudot;
1142 
1143 	if (!nlistread)
1144 		failure = (kd) ? donlist() : 1;
1145 	if (failure)
1146 		return (0.0);
1147 
1148 	/* XXX want pmap ptpages, segtab, etc. (per architecture) */
1149 	szptudot = uspace/getpagesize();
1150 	/* XXX don't have info about shared */
1151 	fracmem = ((float)k->p_vm_rssize + szptudot)/mempages;
1152 	return (100.0 * fracmem);
1153 }
1154 
1155 void
1156 pmem(void *arg, VARENT *ve, enum mode mode)
1157 {
1158 	struct kinfo_proc2 *k;
1159 	VAR *v;
1160 
1161 	k = arg;
1162 	v = ve->var;
1163 	doubleprintorsetwidth(v, getpmem(k), 1, mode);
1164 }
1165 
1166 void
1167 pagein(void *arg, VARENT *ve, enum mode mode)
1168 {
1169 	struct kinfo_proc2 *k;
1170 	VAR *v;
1171 
1172 	k = arg;
1173 	v = ve->var;
1174 	intprintorsetwidth(v, k->p_uvalid ? k->p_uru_majflt : 0, mode);
1175 }
1176 
1177 void
1178 maxrss(void *arg, VARENT *ve, enum mode mode)
1179 {
1180 	VAR *v;
1181 
1182 	v = ve->var;
1183 	/* No need to check width! */
1184 	if (mode == PRINTMODE)
1185 		(void)printf("%*s", v->width, "-");
1186 }
1187 
1188 void
1189 tsize(void *arg, VARENT *ve, enum mode mode)
1190 {
1191 	struct kinfo_proc2 *k;
1192 	VAR *v;
1193 
1194 	k = arg;
1195 	v = ve->var;
1196 	intprintorsetwidth(v, pgtok(k->p_vm_tsize), mode);
1197 }
1198 
1199 /*
1200  * Generic output routines.  Print fields from various prototype
1201  * structures.
1202  */
1203 static void
1204 printval(void *bp, VAR *v, enum mode mode)
1205 {
1206 	static char ofmt[32] = "%";
1207 	int width, vok, fmtlen;
1208 	const char *fcp;
1209 	char *cp;
1210 	int64_t val;
1211 	u_int64_t uval;
1212 
1213 	val = 0;	/* XXXGCC -Wuninitialized [hpcarm] */
1214 	uval = 0;	/* XXXGCC -Wuninitialized [hpcarm] */
1215 
1216 	/*
1217 	 * Note that the "INF127" check is nonsensical for types
1218 	 * that are or can be signed.
1219 	 */
1220 #define	GET(type)		(*(type *)bp)
1221 #define	CHK_INF127(n)		(((n) > 127) && (v->flag & INF127) ? 127 : (n))
1222 
1223 #define	VSIGN	1
1224 #define	VUNSIGN	2
1225 #define	VPTR	3
1226 
1227 	if (mode == WIDTHMODE) {
1228 		vok = 0;
1229 		switch (v->type) {
1230 		case CHAR:
1231 			val = GET(char);
1232 			vok = VSIGN;
1233 			break;
1234 		case UCHAR:
1235 			uval = CHK_INF127(GET(u_char));
1236 			vok = VUNSIGN;
1237 			break;
1238 		case SHORT:
1239 			val = GET(short);
1240 			vok = VSIGN;
1241 			break;
1242 		case USHORT:
1243 			uval = CHK_INF127(GET(u_short));
1244 			vok = VUNSIGN;
1245 			break;
1246 		case INT32:
1247 			val = GET(int32_t);
1248 			vok = VSIGN;
1249 			break;
1250 		case INT:
1251 			val = GET(int);
1252 			vok = VSIGN;
1253 			break;
1254 		case UINT:
1255 		case UINT32:
1256 			uval = CHK_INF127(GET(u_int));
1257 			vok = VUNSIGN;
1258 			break;
1259 		case LONG:
1260 			val = GET(long);
1261 			vok = VSIGN;
1262 			break;
1263 		case ULONG:
1264 			uval = CHK_INF127(GET(u_long));
1265 			vok = VUNSIGN;
1266 			break;
1267 		case KPTR:
1268 			uval = GET(u_int64_t);
1269 			vok = VPTR;
1270 			break;
1271 		case KPTR24:
1272 			uval = GET(u_int64_t);
1273 			uval &= 0xffffff;
1274 			vok = VPTR;
1275 			break;
1276 		case INT64:
1277 			val = GET(int64_t);
1278 			vok = VSIGN;
1279 			break;
1280 		case UINT64:
1281 			uval = CHK_INF127(GET(u_int64_t));
1282 			vok = VUNSIGN;
1283 			break;
1284 
1285 		case SIGLIST:
1286 		default:
1287 			/* nothing... */;
1288 		}
1289 		switch (vok) {
1290 		case VSIGN:
1291 			if (val < 0 && val < v->longestn) {
1292 				v->longestn = val;
1293 				fmtlen = iwidth(-val) + 1;
1294 				if (fmtlen > v->width)
1295 					v->width = fmtlen;
1296 			} else if (val > 0 && val > v->longestp) {
1297 				v->longestp = val;
1298 				fmtlen = iwidth(val);
1299 				if (fmtlen > v->width)
1300 					v->width = fmtlen;
1301 			}
1302 			return;
1303 		case VUNSIGN:
1304 			if (uval > v->longestu) {
1305 				v->longestu = uval;
1306 				v->width = iwidth(uval);
1307 			}
1308 			return;
1309 		case VPTR:
1310 			fmtlen = 0;
1311 			while (uval > 0) {
1312 				uval >>= 4;
1313 				fmtlen++;
1314 			}
1315 			if (fmtlen > v->width)
1316 				v->width = fmtlen;
1317 			return;
1318 		}
1319 	}
1320 
1321 	width = v->width;
1322 	cp = ofmt + 1;
1323 	fcp = v->fmt;
1324 	if (v->flag & LJUST)
1325 		*cp++ = '-';
1326 	*cp++ = '*';
1327 	while ((*cp++ = *fcp++) != '\0')
1328 		continue;
1329 
1330 	switch (v->type) {
1331 	case CHAR:
1332 		(void)printf(ofmt, width, GET(char));
1333 		return;
1334 	case UCHAR:
1335 		(void)printf(ofmt, width, CHK_INF127(GET(u_char)));
1336 		return;
1337 	case SHORT:
1338 		(void)printf(ofmt, width, GET(short));
1339 		return;
1340 	case USHORT:
1341 		(void)printf(ofmt, width, CHK_INF127(GET(u_short)));
1342 		return;
1343 	case INT:
1344 		(void)printf(ofmt, width, GET(int));
1345 		return;
1346 	case UINT:
1347 		(void)printf(ofmt, width, CHK_INF127(GET(u_int)));
1348 		return;
1349 	case LONG:
1350 		(void)printf(ofmt, width, GET(long));
1351 		return;
1352 	case ULONG:
1353 		(void)printf(ofmt, width, CHK_INF127(GET(u_long)));
1354 		return;
1355 	case KPTR:
1356 		(void)printf(ofmt, width, GET(u_int64_t));
1357 		return;
1358 	case KPTR24:
1359 		(void)printf(ofmt, width, GET(u_int64_t) & 0xffffff);
1360 		return;
1361 	case INT32:
1362 		(void)printf(ofmt, width, GET(int32_t));
1363 		return;
1364 	case UINT32:
1365 		(void)printf(ofmt, width, CHK_INF127(GET(u_int32_t)));
1366 		return;
1367 	case SIGLIST:
1368 		{
1369 			sigset_t *s = (sigset_t *)(void *)bp;
1370 			size_t i;
1371 #define	SIGSETSIZE	(sizeof(s->__bits) / sizeof(s->__bits[0]))
1372 			char buf[SIGSETSIZE * 8 + 1];
1373 
1374 			for (i = 0; i < SIGSETSIZE; i++)
1375 				(void)snprintf(&buf[i * 8], 9, "%.8x",
1376 				    s->__bits[(SIGSETSIZE - 1) - i]);
1377 
1378 			/* Skip leading zeroes */
1379 			for (i = 0; buf[i] == '0'; i++)
1380 				continue;
1381 
1382 			if (buf[i] == '\0')
1383 				i--;
1384 			strprintorsetwidth(v, buf + i, mode);
1385 #undef SIGSETSIZE
1386 		}
1387 		return;
1388 	case INT64:
1389 		(void)printf(ofmt, width, GET(int64_t));
1390 		return;
1391 	case UINT64:
1392 		(void)printf(ofmt, width, CHK_INF127(GET(u_int64_t)));
1393 		return;
1394 	default:
1395 		errx(1, "unknown type %d", v->type);
1396 	}
1397 #undef GET
1398 #undef CHK_INF127
1399 }
1400 
1401 void
1402 pvar(void *arg, VARENT *ve, enum mode mode)
1403 {
1404 	VAR *v;
1405 
1406 	v = ve->var;
1407 	if (v->flag & UAREA && !((struct kinfo_proc2 *)arg)->p_uvalid) {
1408 		if (mode == PRINTMODE)
1409 			(void)printf("%*s", v->width, "-");
1410 		return;
1411 	}
1412 
1413 	(void)printval((char *)arg + v->off, v, mode);
1414 }
1415 
1416 void
1417 putimeval(void *arg, VARENT *ve, enum mode mode)
1418 {
1419 	VAR *v = ve->var;
1420 	struct kinfo_proc2 *k = arg;
1421 	ulong secs = *(uint32_t *)((char *)arg + v->off);
1422 	ulong usec = *(uint32_t *)((char *)arg + v->off + sizeof (uint32_t));
1423 	int fmtlen;
1424 
1425 	if (!k->p_uvalid) {
1426 		if (mode == PRINTMODE)
1427 			(void)printf("%*s", v->width, "-");
1428 		return;
1429 	}
1430 
1431 	if (mode == WIDTHMODE) {
1432 		if (secs == 0)
1433 			/* non-zero so fmtlen is calculated at least once */
1434 			secs = 1;
1435 		if (secs > v->longestu) {
1436 			v->longestu = secs;
1437 			if (secs <= 999)
1438 				/* sss.ssssss */
1439 				fmtlen = iwidth(secs) + 6 + 1;
1440 			else
1441 				/* hh:mm:ss.ss */
1442 				fmtlen = iwidth((secs + 1) / SECSPERHOUR)
1443 					+ 2 + 1 + 2 + 1 + 2 + 1;
1444 			if (fmtlen > v->width)
1445 				v->width = fmtlen;
1446 		}
1447 		return;
1448 	}
1449 
1450 	if (secs < 999)
1451 		(void)printf( "%*lu.%.6lu", v->width - 6 - 1, secs, usec);
1452 	else {
1453 		uint h, m;
1454 		usec += 5000;
1455 		if (usec >= 1000000) {
1456 			usec -= 1000000;
1457 			secs++;
1458 		}
1459 		m = secs / SECSPERMIN;
1460 		secs -= m * SECSPERMIN;
1461 		h = m / MINSPERHOUR;
1462 		m -= h * MINSPERHOUR;
1463 		(void)printf( "%*u:%.2u:%.2lu.%.2lu", v->width - 9, h, m, secs,
1464 		    usec / 10000u );
1465 	}
1466 }
1467 
1468 void
1469 lname(void *arg, VARENT *ve, enum mode mode)
1470 {
1471 	struct kinfo_lwp *l;
1472 	VAR *v;
1473 
1474 	l = arg;
1475 	v = ve->var;
1476 	if (l->l_name[0] != '\0') {
1477 		strprintorsetwidth(v, l->l_name, mode);
1478 		v->width = min(v->width, KI_LNAMELEN);
1479 	} else {
1480 		if (mode == PRINTMODE)
1481 			(void)printf("%-*s", v->width, "-");
1482 	}
1483 }
1484