xref: /dflybsd-src/bin/ps/print.c (revision 7aa7bdf5314aa7edbb815af98e97246e1ee6d889) 
1 /*-
2  * Copyright (c) 1990, 1993, 1994
3  *	The Regents of the University of California.  All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  * 3. All advertising materials mentioning features or use of this software
14  *    must display the following acknowledgement:
15  *	This product includes software developed by the University of
16  *	California, Berkeley and its contributors.
17  * 4. Neither the name of the University nor the names of its contributors
18  *    may be used to endorse or promote products derived from this software
19  *    without specific prior written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31  * SUCH DAMAGE.
32  *
33  * @(#)print.c	8.6 (Berkeley) 4/16/94
34  * $FreeBSD: src/bin/ps/print.c,v 1.36.2.4 2002/11/30 13:00:14 tjr Exp $
35  * $DragonFly: src/bin/ps/print.c,v 1.19 2005/02/01 22:33:43 dillon Exp $
36  */
37 
38 #include <sys/param.h>
39 #include <sys/time.h>
40 #include <sys/resource.h>
41 #include <sys/stat.h>
42 
43 #include <sys/ucred.h>
44 #include <sys/user.h>
45 #include <sys/sysctl.h>
46 #include <sys/rtprio.h>
47 #include <vm/vm.h>
48 
49 #include <err.h>
50 #include <langinfo.h>
51 #include <locale.h>
52 #include <math.h>
53 #include <nlist.h>
54 #include <stddef.h>
55 #include <stdio.h>
56 #include <stdlib.h>
57 #include <unistd.h>
58 #include <string.h>
59 #include <vis.h>
60 
61 #include "ps.h"
62 
63 void
64 printheader(void)
65 {
66 	const VAR *v;
67 	struct varent *vent;
68 	int allempty;
69 
70 	allempty = 1;
71 	STAILQ_FOREACH(vent, &var_head, link) {
72 		if (*vent->header != '\0') {
73 			allempty = 0;
74 			break;
75 		}
76 	}
77 	if (allempty)
78 		return;
79 	STAILQ_FOREACH(vent, &var_head, link) {
80 		v = vent->var;
81 		if (v->flag & LJUST) {
82 			if (STAILQ_NEXT(vent, link) == NULL)	/* last one */
83 				printf("%s", vent->header);
84 			else
85 				printf("%-*s", vent->width, vent->header);
86 		} else
87 			printf("%*s", vent->width, vent->header);
88 		if (STAILQ_NEXT(vent, link) != NULL)
89 			putchar(' ');
90 	}
91 	putchar('\n');
92 }
93 
94 void
95 command(const KINFO *k, const struct varent *vent)
96 {
97 	const VAR *v;
98 	int left;
99 	char *cp, *vis_env, *vis_args;
100 
101 	v = vent->var;
102 
103 	if (cflag) {
104 		/* Don't pad the last field. */
105 		if (STAILQ_NEXT(vent, link) == NULL)
106 			printf("%s", KI_THREAD(k)->td_comm);
107 		else
108 			printf("%-*s", vent->width, KI_THREAD(k)->td_comm);
109 		return;
110 	}
111 
112 	if ((vis_args = malloc(strlen(k->ki_args) * 4 + 1)) == NULL)
113 		err(1, NULL);
114 	strvis(vis_args, k->ki_args, VIS_TAB | VIS_NL | VIS_NOSLASH);
115 	if (k->ki_env) {
116 		if ((vis_env = malloc(strlen(k->ki_env) * 4 + 1)) == NULL)
117 			err(1, NULL);
118 		strvis(vis_env, k->ki_env, VIS_TAB | VIS_NL | VIS_NOSLASH);
119 	} else
120 		vis_env = NULL;
121 
122 	if (STAILQ_NEXT(vent, link) == NULL) {
123 		/* last field */
124 		if (termwidth == UNLIMITED) {
125 			if (vis_env)
126 				printf("%s ", vis_env);
127 			printf("%s", vis_args);
128 		} else {
129 			left = termwidth - (totwidth - vent->width);
130 			if (left < 1) /* already wrapped, just use std width */
131 				left = vent->width;
132 			if ((cp = vis_env) != NULL) {
133 				while (--left >= 0 && *cp)
134 					putchar(*cp++);
135 				if (--left >= 0)
136 					putchar(' ');
137 			}
138 			for (cp = vis_args; --left >= 0 && *cp != '\0';)
139 				putchar(*cp++);
140 		}
141 	} else
142 		/* XXX env? */
143 		printf("%-*.*s", vent->width, vent->width, vis_args);
144 	free(vis_args);
145 	if (vis_env != NULL)
146 		free(vis_env);
147 }
148 
149 void
150 ucomm(const KINFO *k, const struct varent *vent)
151 {
152 	printf("%-*s", vent->width, KI_THREAD(k)->td_comm);
153 }
154 
155 void
156 logname(const KINFO *k, const struct varent *vent)
157 {
158 	const char *s = KI_EPROC(k)->e_login;
159 
160 	printf("%-*s", vent->width, *s != '\0' ? s : "-");
161 }
162 
163 void
164 state(const KINFO *k, const struct varent *vent)
165 {
166 	struct proc *p;
167 	int flag;
168 	char *cp;
169 	char buf[16];
170 
171 	p = KI_PROC(k);
172 	flag = p->p_flag;
173 	cp = buf;
174 
175 	switch (p->p_stat) {
176 
177 	case SSTOP:
178 		*cp = 'T';
179 		break;
180 
181 	case SSLEEP:
182 		if (flag & P_SINTR)	/* interruptable (long) */
183 			*cp = p->p_slptime >= MAXSLP ? 'I' : 'S';
184 		else if (KI_THREAD(k)->td_flags & TDF_SINTR)
185 			*cp = 'S';
186 		else
187 			*cp = 'D';
188 		break;
189 
190 	case SRUN:
191 	case SIDL:
192 		*cp = 'R';
193 		if (KI_THREAD(k)->td_flags & TDF_RUNNING) {
194 		    ++cp;
195 		    sprintf(cp, "%d", KI_EPROC(k)->e_cpuid);
196 		    while (cp[1])
197 			++cp;
198 		}
199 		break;
200 
201 	case SZOMB:
202 		*cp = 'Z';
203 		break;
204 
205 	default:
206 		*cp = '?';
207 	}
208 	cp++;
209 	if (!(flag & P_INMEM))
210 		*cp++ = 'W';
211 	if (p->p_nice < NZERO)
212 		*cp++ = '<';
213 	else if (p->p_nice > NZERO)
214 		*cp++ = 'N';
215 	if (flag & P_TRACED)
216 		*cp++ = 'X';
217 	if (flag & P_WEXIT && p->p_stat != SZOMB)
218 		*cp++ = 'E';
219 	if (flag & P_PPWAIT)
220 		*cp++ = 'V';
221 	if ((flag & P_SYSTEM) || p->p_lock > 0)
222 		*cp++ = 'L';
223 	if (numcpus > 1 && KI_THREAD(k)->td_mpcount_unused == 0)
224 		*cp++ = 'M';
225 	if (flag & P_JAILED)
226 		*cp++ = 'J';
227 	if (KI_EPROC(k)->e_flag & EPROC_SLEADER)
228 		*cp++ = 's';
229 	if ((flag & P_CONTROLT) && KI_EPROC(k)->e_pgid == KI_EPROC(k)->e_tpgid)
230 		*cp++ = '+';
231 	*cp = '\0';
232 	printf("%-*s", vent->width, buf);
233 }
234 
235 /*
236  * Normalized priority (lower is better).  For pure threads
237  * output a negated LWKT priority (so lower still means better).
238  */
239 void
240 pri(const KINFO *k, const struct varent *vent)
241 {
242 	if (KI_THREAD(k)->td_proc)
243 	    printf("%*d", vent->width, KI_PROC(k)->p_priority);
244 	else
245 	    printf("%*d", vent->width, -(KI_THREAD(k)->td_pri & TDPRI_MASK));
246 }
247 
248 void
249 tdpri(const KINFO *k, const struct varent *vent)
250 {
251 	char buf[32];
252 	int val = KI_THREAD(k)->td_pri;
253 
254 	snprintf(buf, sizeof(buf), "%02d/%d", val & TDPRI_MASK, val / TDPRI_CRIT);
255 	printf("%*s", vent->width, buf);
256 }
257 
258 void
259 uname(const KINFO *k, const struct varent *vent)
260 {
261 	printf("%-*s", vent->width,
262 	       user_from_uid(KI_EPROC(k)->e_ucred.cr_uid, 0));
263 }
264 
265 int
266 s_uname(const KINFO *k)
267 {
268 	return (strlen(user_from_uid(KI_EPROC(k)->e_ucred.cr_uid, 0)));
269 }
270 
271 void
272 runame(const KINFO *k, const struct varent *vent)
273 {
274 	printf("%-*s", vent->width,
275 	       user_from_uid(KI_EPROC(k)->e_ucred.cr_ruid, 0));
276 }
277 
278 int
279 s_runame(const KINFO *k)
280 {
281 	return (strlen(user_from_uid(KI_EPROC(k)->e_ucred.cr_ruid, 0)));
282 }
283 
284 void
285 tdev(const KINFO *k, const struct varent *vent)
286 {
287 	dev_t dev;
288 	char buff[16];
289 
290 	dev = KI_EPROC(k)->e_tdev;
291 	if (dev == NODEV)
292 		printf("%*s", vent->width, "??");
293 	else {
294 		snprintf(buff, sizeof(buff), "%d/%d", major(dev), minor(dev));
295 		printf("%*s", vent->width, buff);
296 	}
297 }
298 
299 void
300 tname(const KINFO *k, const struct varent *vent)
301 {
302 	dev_t dev;
303 	const char *ttname;
304 
305 	dev = KI_EPROC(k)->e_tdev;
306 	if (dev == NODEV || (ttname = devname(dev, S_IFCHR)) == NULL)
307 		printf("%*s ", vent->width-1, "??");
308 	else {
309 		if (strncmp(ttname, "tty", 3) == 0 ||
310 		    strncmp(ttname, "cua", 3) == 0)
311 			ttname += 3;
312 		printf("%*.*s%c", vent->width-1, vent->width-1, ttname,
313 			KI_EPROC(k)->e_flag & EPROC_CTTY ? ' ' : '-');
314 	}
315 }
316 
317 void
318 longtname(const KINFO *k, const struct varent *vent)
319 {
320 	dev_t dev;
321 	const char *ttname;
322 
323 	dev = KI_EPROC(k)->e_tdev;
324 	if (dev == NODEV || (ttname = devname(dev, S_IFCHR)) == NULL)
325 		printf("%-*s", vent->width, "??");
326 	else
327 		printf("%-*s", vent->width, ttname);
328 }
329 
330 void
331 started(const KINFO *k, const struct varent *vent)
332 {
333 	static time_t now;
334 	time_t then;
335 	struct tm *tp;
336 	char buf[100];
337 	static int  use_ampm = -1;
338 
339 	if (!k->ki_u.u_valid) {
340 		printf("%-*s", vent->width, "-");
341 		return;
342 	}
343 
344 	if (use_ampm < 0)
345 		use_ampm = (*nl_langinfo(T_FMT_AMPM) != '\0');
346 
347 	if (KI_THREAD(k)->td_proc != NULL) {
348 		then = k->ki_u.u_start.tv_sec;
349 	} else {
350 		then = KI_THREAD(k)->td_start.tv_sec;
351 		if (then < btime.tv_sec) {
352 			then = btime.tv_sec;
353 		}
354 	}
355 
356 	tp = localtime(&then);
357 	if (!now)
358 		time(&now);
359 	if (now - k->ki_u.u_start.tv_sec < 24 * 3600) {
360 		strftime(buf, sizeof(buf) - 1,
361 		use_ampm ? "%l:%M%p" : "%k:%M  ", tp);
362 	} else if (now - k->ki_u.u_start.tv_sec < 7 * 86400) {
363 		strftime(buf, sizeof(buf) - 1,
364 		use_ampm ? "%a%I%p" : "%a%H  ", tp);
365 	} else
366 		strftime(buf, sizeof(buf) - 1, "%e%b%y", tp);
367 	printf("%-*s", vent->width, buf);
368 }
369 
370 void
371 lstarted(const KINFO *k, const struct varent *vent)
372 {
373 	time_t then;
374 	char buf[100];
375 
376 	if (!k->ki_u.u_valid) {
377 		printf("%-*s", vent->width, "-");
378 		return;
379 	}
380 	then = k->ki_u.u_start.tv_sec;
381 	strftime(buf, sizeof(buf) -1, "%c", localtime(&then));
382 	printf("%-*s", vent->width, buf);
383 }
384 
385 void
386 wchan(const KINFO *k, const struct varent *vent)
387 {
388 	if (KI_THREAD(k)->td_wchan) {
389 		if (KI_THREAD(k)->td_wmesg)
390 			printf("%-*.*s", vent->width, vent->width,
391 			       KI_EPROC(k)->e_wmesg);
392 		else
393 			printf("%-*lx", vent->width,
394 			       (long)KI_THREAD(k)->td_wchan);
395 	} else
396 		printf("%-*s", vent->width, "-");
397 }
398 
399 #ifndef pgtok
400 #define pgtok(a)        (((a)*getpagesize())/1024)
401 #endif
402 
403 void
404 vsize(const KINFO *k, const struct varent *vent)
405 {
406 	printf("%*d", vent->width, (KI_EPROC(k)->e_vm.vm_map.size/1024));
407 }
408 
409 void
410 rssize(const KINFO *k, const struct varent *vent)
411 {
412 	/* XXX don't have info about shared */
413 	printf("%*lu", vent->width, (u_long)pgtok(KI_EPROC(k)->e_vm.vm_rssize));
414 }
415 
416 void
417 p_rssize(const KINFO *k, const struct varent *vent)	/* doesn't account for text */
418 {
419 	printf("%*ld", vent->width, (long)pgtok(KI_EPROC(k)->e_vm.vm_rssize));
420 }
421 
422 void
423 cputime(const KINFO *k, const struct varent *vent)
424 {
425 	long secs;
426 	long psecs;	/* "parts" of a second. first micro, then centi */
427 	char obuff[128];
428 	static char decimal_point = '\0';
429 
430 	if (decimal_point == '\0')
431 		decimal_point = localeconv()->decimal_point[0];
432 
433 	if (KI_PROC(k)->p_stat == SZOMB || !k->ki_u.u_valid) {
434 		secs = 0;
435 		psecs = 0;
436 	} else {
437 		u_int64_t timeus;
438 
439 		/*
440 		 * This counts time spent handling interrupts.  We could
441 		 * fix this, but it is not 100% trivial (and interrupt
442 		 * time fractions only work on the sparc anyway).	XXX
443 		 */
444 		timeus = KI_EPROC(k)->e_uticks + KI_EPROC(k)->e_sticks +
445 			KI_EPROC(k)->e_iticks;
446 		secs = timeus / 1000000;
447 		psecs = timeus % 1000000;
448 		if (sumrusage) {
449 			secs += k->ki_u.u_cru.ru_utime.tv_sec +
450 				k->ki_u.u_cru.ru_stime.tv_sec;
451 			psecs += k->ki_u.u_cru.ru_utime.tv_usec +
452 				k->ki_u.u_cru.ru_stime.tv_usec;
453 		}
454 		/*
455 		 * round and scale to 100's
456 		 */
457 		psecs = (psecs + 5000) / 10000;
458 		secs += psecs / 100;
459 		psecs = psecs % 100;
460 	}
461 	snprintf(obuff, sizeof(obuff),
462 	    "%3ld:%02ld%c%02ld", secs/60, secs%60, decimal_point, psecs);
463 	printf("%*s", vent->width, obuff);
464 }
465 
466 double
467 getpcpu(const KINFO *k)
468 {
469 	const struct proc *p;
470 	static int failure;
471 
472 	if (!nlistread)
473 		failure = donlist();
474 	if (failure)
475 		return (0.0);
476 
477 	p = KI_PROC(k);
478 #define	fxtofl(fixpt)	((double)(fixpt) / fscale)
479 
480 	/* XXX - I don't like this */
481 	if (p->p_swtime == 0 || (p->p_flag & P_INMEM) == 0)
482 		return (0.0);
483 	if (rawcpu)
484 		return (100.0 * fxtofl(p->p_pctcpu));
485 	return (100.0 * fxtofl(p->p_pctcpu) /
486 		(1.0 - exp(p->p_swtime * log(fxtofl(ccpu)))));
487 }
488 
489 void
490 pcpu(const KINFO *k, const struct varent *vent)
491 {
492 	printf("%*.1f", vent->width, getpcpu(k));
493 }
494 
495 void
496 pnice(const KINFO *k, const struct varent *vent)
497 {
498 	int niceval;
499 
500 	switch (KI_PROC(k)->p_rtprio.type) {
501 	case RTP_PRIO_REALTIME:
502 		niceval = PRIO_MIN - 1 - RTP_PRIO_MAX + KI_PROC(k)->p_rtprio.prio;
503 		break;
504 	case RTP_PRIO_IDLE:
505 		niceval = PRIO_MAX + 1 + KI_PROC(k)->p_rtprio.prio;
506 		break;
507 	case RTP_PRIO_THREAD:
508 		niceval = PRIO_MIN - 1 - RTP_PRIO_MAX - KI_PROC(k)->p_rtprio.prio;
509 		break;
510 	default:
511 		niceval = KI_PROC(k)->p_nice - NZERO;
512 		break;
513 	}
514 	printf("%*d", vent->width, niceval);
515 }
516 
517 
518 double
519 getpmem(const KINFO *k)
520 {
521 	static int failure;
522 	struct proc *p;
523 	struct eproc *e;
524 	double fracmem;
525 	int szptudot;
526 
527 	if (!nlistread)
528 		failure = donlist();
529 	if (failure)
530 		return (0.0);
531 
532 	p = KI_PROC(k);
533 	e = KI_EPROC(k);
534 	if ((p->p_flag & P_INMEM) == 0)
535 		return (0.0);
536 	/* XXX want pmap ptpages, segtab, etc. (per architecture) */
537 	szptudot = UPAGES;
538 	/* XXX don't have info about shared */
539 	fracmem = ((float)e->e_vm.vm_rssize + szptudot)/mempages;
540 	return (100.0 * fracmem);
541 }
542 
543 void
544 pmem(const KINFO *k, const struct varent *vent)
545 {
546 	printf("%*.1f", vent->width, getpmem(k));
547 }
548 
549 void
550 pagein(const KINFO *k, const struct varent *vent)
551 {
552 	printf("%*ld", vent->width,
553 	       k->ki_u.u_valid ? k->ki_u.u_ru.ru_majflt : 0);
554 }
555 
556 /* ARGSUSED */
557 void
558 maxrss(const KINFO *k __unused, const struct varent *vent)
559 {
560 	/* XXX not yet */
561 	printf("%*s", vent->width, "-");
562 }
563 
564 void
565 tsize(const KINFO *k, const struct varent *vent)
566 {
567 	printf("%*ld", vent->width, (long)pgtok(KI_EPROC(k)->e_vm.vm_tsize));
568 }
569 
570 void
571 rtprior(const KINFO *k, const struct varent *vent)
572 {
573 	struct rtprio *prtp;
574 	char str[8];
575 	unsigned prio, type;
576 
577 	prtp = (struct rtprio *) ((char *)KI_PROC(k) + vent->var->off);
578 	prio = prtp->prio;
579 	type = prtp->type;
580 	switch (type) {
581 	case RTP_PRIO_REALTIME:
582 		snprintf(str, sizeof(str), "real:%u", prio);
583 		break;
584 	case RTP_PRIO_NORMAL:
585 		strncpy(str, "normal", sizeof(str));
586 		break;
587 	case RTP_PRIO_IDLE:
588 		snprintf(str, sizeof(str), "idle:%u", prio);
589 		break;
590 	default:
591 		snprintf(str, sizeof(str), "%u:%u", type, prio);
592 		break;
593 	}
594 	str[sizeof(str) - 1] = '\0';
595 	printf("%*s", vent->width, str);
596 }
597 
598 /*
599  * Generic output routines.  Print fields from various prototype
600  * structures.
601  */
602 static void
603 printval(const char *bp, const struct varent *vent)
604 {
605 	static char ofmt[32] = "%";
606 	const char *fcp;
607 	char *cp;
608 
609 	cp = ofmt + 1;
610 	fcp = vent->var->fmt;
611 	if (vent->var->flag & LJUST)
612 		*cp++ = '-';
613 	*cp++ = '*';
614 	while ((*cp++ = *fcp++));
615 
616 	switch (vent->var->type) {
617 	case CHAR:
618 		printf(ofmt, vent->width, *(const char *)bp);
619 		break;
620 	case UCHAR:
621 		printf(ofmt, vent->width, *(const u_char *)bp);
622 		break;
623 	case SHORT:
624 		printf(ofmt, vent->width, *(const short *)bp);
625 		break;
626 	case USHORT:
627 		printf(ofmt, vent->width, *(const u_short *)bp);
628 		break;
629 	case INT:
630 		printf(ofmt, vent->width, *(const int *)bp);
631 		break;
632 	case UINT:
633 		printf(ofmt, vent->width, *(const u_int *)bp);
634 		break;
635 	case LONG:
636 		printf(ofmt, vent->width, *(const long *)bp);
637 		break;
638 	case ULONG:
639 		printf(ofmt, vent->width, *(const u_long *)bp);
640 		break;
641 	case KPTR:
642 		printf(ofmt, vent->width, *(const u_long *)bp);
643 		break;
644 	default:
645 		errx(1, "unknown type %d", vent->var->type);
646 	}
647 }
648 
649 void
650 pvar(const KINFO *k, const struct varent *vent)
651 {
652 	printval((char *)((char *)KI_PROC(k) + vent->var->off), vent);
653 }
654 
655 void
656 tvar(const KINFO *k, const struct varent *vent)
657 {
658 	printval((char *)((char *)KI_THREAD(k) + vent->var->off), vent);
659 }
660 
661 void
662 evar(const KINFO *k, const struct varent *vent)
663 {
664 	printval((char *)((char *)KI_EPROC(k) + vent->var->off), vent);
665 }
666 
667 void
668 uvar(const KINFO *k, const struct varent *vent)
669 {
670 	if (k->ki_u.u_valid)
671 		printval(((const char *)&k->ki_u + vent->var->off), vent);
672 	else
673 		printf("%*s", vent->width, "-");
674 }
675 
676 void
677 rvar(const KINFO *k, const struct varent *vent)
678 {
679 	if (k->ki_u.u_valid)
680 		printval(((const char *)&k->ki_u.u_ru + vent->var->off), vent);
681 	else
682 		printf("%*s", vent->width, "-");
683 }
684