bin/ps/print.c

   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 1.33 2007/05/24 20:32:02 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 static const char *make_printable(const char *str);
  64
  65 void
  66 printheader(void)
  67 {
  68         const VAR *v;
  69         struct varent *vent;
  70         int allempty;
  71
  72         allempty = 1;
  73         STAILQ_FOREACH(vent, &var_head, link) {
  74                 if (*vent->header != '\0') {
  75                         allempty = 0;
  76                         break;
  77                 }
  78         }
  79         if (allempty)
  80                 return;
  81         STAILQ_FOREACH(vent, &var_head, link) {
  82                 v = vent->var;
  83                 if (v->flag & LJUST) {
  84                         if (STAILQ_NEXT(vent, link) == NULL)    /* last one */
  85                                 printf("%s", vent->header);
  86                         else
  87                                 printf("%-*s", vent->width, vent->header);
  88                 } else
  89                         printf("%*s", vent->width, vent->header);
  90                 if (STAILQ_NEXT(vent, link) != NULL)
  91                         putchar(' ');
  92         }
  93         putchar('\n');
  94 }
  95
  96 void
  97 command(const KINFO *k, const struct varent *vent)
  98 {
  99         const VAR *v;
 100         int left;
 101         char *cp, *vis_env, *vis_args;
 102
 103         v = vent->var;
 104
 105         if (cflag) {
 106                 /* Don't pad the last field. */
 107                 if (STAILQ_NEXT(vent, link) == NULL)
 108                         printf("%s", make_printable(KI_PROC(k, comm)));
 109                 else
 110                         printf("%-*s", vent->width,
 111                                 make_printable(KI_PROC(k, comm)));
 112                 return;
 113         }
 114
 115         if ((vis_args = malloc(strlen(k->ki_args) * 4 + 1)) == NULL)
 116                 err(1, NULL);
 117         strvis(vis_args, k->ki_args, VIS_TAB | VIS_NL | VIS_NOSLASH);
 118         if (k->ki_env) {
 119                 if ((vis_env = malloc(strlen(k->ki_env) * 4 + 1)) == NULL)
 120                         err(1, NULL);
 121                 strvis(vis_env, k->ki_env, VIS_TAB | VIS_NL | VIS_NOSLASH);
 122         } else
 123                 vis_env = NULL;
 124
 125         if (STAILQ_NEXT(vent, link) == NULL) {
 126                 /* last field */
 127                 if (termwidth == UNLIMITED) {
 128                         if (vis_env)
 129                                 printf("%s ", vis_env);
 130                         printf("%s", vis_args);
 131                 } else {
 132                         left = termwidth - (totwidth - vent->width);
 133                         if (left < 1) /* already wrapped, just use std width */
 134                                 left = vent->width;
 135                         if ((cp = vis_env) != NULL) {
 136                                 while (--left >= 0 && *cp)
 137                                         putchar(*cp++);
 138                                 if (--left >= 0)
 139                                         putchar(' ');
 140                         }
 141                         for (cp = vis_args; --left >= 0 && *cp != '\0';)
 142                                 putchar(*cp++);
 143                 }
 144         } else
 145                 /* XXX env? */
 146                 printf("%-*.*s", vent->width, vent->width, vis_args);
 147         free(vis_args);
 148         if (vis_env != NULL)
 149                 free(vis_env);
 150 }
 151
 152 void
 153 ucomm(const KINFO *k, const struct varent *vent)
 154 {
 155         printf("%-*s", vent->width, make_printable(KI_PROC(k, comm)));
 156 }
 157
 158 void
 159 logname(const KINFO *k, const struct varent *vent)
 160 {
 161         const char *s = KI_PROC(k, login);
 162
 163         printf("%-*s", vent->width, *s != '\0' ? s : "-");
 164 }
 165
 166 void
 167 state(const KINFO *k, const struct varent *vent)
 168 {
 169         int flag;
 170         char *cp;
 171         char buf[16];
 172
 173         flag = KI_PROC(k, flags);
 174         cp = buf;
 175
 176         switch (KI_PROC(k, stat)) {
 177
 178         case SSTOP:
 179                 *cp = 'T';
 180                 break;
 181
 182         case SACTIVE:
 183                 switch (KI_LWP(k, stat)) {
 184                 case LSSLEEP:
 185                         if (KI_LWP(k, flags) & LWP_SINTR) {
 186                                 /* interruptable wait short/long */
 187                                 *cp = KI_LWP(k, slptime) >= MAXSLP ? 'I' : 'S';
 188                         }
 189                         else if (KI_LWP(k, tdflags) & TDF_SINTR)
 190                                 *cp = 'S';      /* interruptable lwkt wait */
 191                         else if (KI_PROC(k, paddr))
 192                                 *cp = 'D';      /* uninterruptable wait */
 193                         else
 194                                 *cp = 'B';      /* uninterruptable lwkt wait */
 195                         break;
 196
 197                 case LSRUN:
 198                         *cp = 'R';
 199                         if (KI_LWP(k, tdflags) & TDF_RUNNING) {
 200                             ++cp;
 201                             sprintf(cp, "%d", KI_LWP(k, cpuid));
 202                             while (cp[1])
 203                                 ++cp;
 204                         }
 205                         break;
 206
 207                 case LSSTOP:
 208                         /* shouldn't happen anyways */
 209                         *cp = 'T';
 210                         break;
 211                 }
 212                 break;
 213
 214         case SZOMB:
 215                 *cp = 'Z';
 216                 break;
 217
 218         default:
 219                 *cp = '?';
 220         }
 221
 222         cp++;
 223         if (flag & P_SWAPPEDOUT)
 224                 *cp++ = 'W';
 225         if (KI_PROC(k, nice) < NZERO)
 226                 *cp++ = '<';
 227         else if (KI_PROC(k, nice) > NZERO)
 228                 *cp++ = 'N';
 229         if (flag & P_TRACED)
 230                 *cp++ = 'X';
 231         if (flag & P_WEXIT && KI_PROC(k, stat) != SZOMB)
 232                 *cp++ = 'E';
 233         if (flag & P_PPWAIT)
 234                 *cp++ = 'V';
 235         if ((flag & P_SYSTEM) || KI_PROC(k, lock) > 0)
 236                 *cp++ = 'L';
 237         if (numcpus > 1 && KI_LWP(k, mpcount) == 0)
 238                 *cp++ = 'M';
 239         if (flag & P_JAILED)
 240                 *cp++ = 'J';
 241         if (KI_PROC(k, auxflags) & KI_SLEADER)
 242                 *cp++ = 's';
 243         if ((flag & P_CONTROLT) && KI_PROC(k, pgid) == KI_PROC(k, tpgid))
 244                 *cp++ = '+';
 245         *cp = '\0';
 246         printf("%-*s", vent->width, buf);
 247 }
 248
 249 /*
 250  * Normalized priority (lower is better).  For pure threads
 251  * output a negated LWKT priority (so lower still means better).
 252  *
 253  * XXX bsd4 scheduler specific.
 254  */
 255 void
 256 pri(const KINFO *k, const struct varent *vent)
 257 {
 258         if (KI_LWP(k, pid) != -1)
 259             printf("%*d", vent->width, KI_LWP(k, prio));
 260         else
 261             printf("%*d", vent->width, -(KI_LWP(k, tdprio) & TDPRI_MASK));
 262 }
 263
 264 void
 265 tdpri(const KINFO *k, const struct varent *vent)
 266 {
 267         char buf[32];
 268         int val = KI_LWP(k, tdprio);
 269
 270         snprintf(buf, sizeof(buf), "%02d/%d", val & TDPRI_MASK, val / TDPRI_CRIT);
 271         printf("%*s", vent->width, buf);
 272 }
 273
 274 void
 275 uname(const KINFO *k, const struct varent *vent)
 276 {
 277         printf("%-*s", vent->width,
 278                user_from_uid(KI_PROC(k, uid), 0));
 279 }
 280
 281 int
 282 s_uname(const KINFO *k)
 283 {
 284         return (strlen(user_from_uid(KI_PROC(k, uid), 0)));
 285 }
 286
 287 void
 288 runame(const KINFO *k, const struct varent *vent)
 289 {
 290         printf("%-*s", vent->width,
 291                user_from_uid(KI_PROC(k, ruid), 0));
 292 }
 293
 294 int
 295 s_runame(const KINFO *k)
 296 {
 297         return (strlen(user_from_uid(KI_PROC(k, ruid), 0)));
 298 }
 299
 300 void
 301 tdev(const KINFO *k, const struct varent *vent)
 302 {
 303         dev_t dev;
 304         char buff[16];
 305
 306         dev = KI_PROC(k, tdev);
 307         if (dev == NODEV)
 308                 printf("%*s", vent->width, "??");
 309         else {
 310                 snprintf(buff, sizeof(buff), "%d/%d", major(dev), minor(dev));
 311                 printf("%*s", vent->width, buff);
 312         }
 313 }
 314
 315 void
 316 tname(const KINFO *k, const struct varent *vent)
 317 {
 318         dev_t dev;
 319         const char *ttname;
 320
 321         dev = KI_PROC(k, tdev);
 322         if (dev == NODEV || (ttname = devname(dev, S_IFCHR)) == NULL)
 323                 printf("%*s ", vent->width-1, "??");
 324         else {
 325                 if (strncmp(ttname, "tty", 3) == 0 ||
 326                     strncmp(ttname, "cua", 3) == 0)
 327                         ttname += 3;
 328                 printf("%*.*s%c", vent->width-1, vent->width-1, ttname,
 329                         KI_PROC(k, auxflags) & KI_CTTY ? ' ' : '-');
 330         }
 331 }
 332
 333 void
 334 longtname(const KINFO *k, const struct varent *vent)
 335 {
 336         dev_t dev;
 337         const char *ttname;
 338
 339         dev = KI_PROC(k, tdev);
 340         if (dev == NODEV || (ttname = devname(dev, S_IFCHR)) == NULL)
 341                 printf("%-*s", vent->width, "??");
 342         else
 343                 printf("%-*s", vent->width, ttname);
 344 }
 345
 346 void
 347 started(const KINFO *k, const struct varent *vent)
 348 {
 349         static time_t now;
 350         time_t then;
 351         struct tm *tp;
 352         char buf[100];
 353         static int  use_ampm = -1;
 354
 355         if (use_ampm < 0)
 356                 use_ampm = (*nl_langinfo(T_FMT_AMPM) != '\0');
 357
 358         then = KI_PROC(k, start).tv_sec;
 359         if (then < btime.tv_sec) {
 360                 then = btime.tv_sec;
 361         }
 362
 363         tp = localtime(&then);
 364         if (!now)
 365                 time(&now);
 366         if (now - then < 24 * 3600) {
 367                 strftime(buf, sizeof(buf) - 1,
 368                 use_ampm ? "%l:%M%p" : "%k:%M  ", tp);
 369         } else if (now - then < 7 * 86400) {
 370                 strftime(buf, sizeof(buf) - 1,
 371                 use_ampm ? "%a%I%p" : "%a%H  ", tp);
 372         } else
 373                 strftime(buf, sizeof(buf) - 1, "%e%b%y", tp);
 374         printf("%-*s", vent->width, buf);
 375 }
 376
 377 void
 378 lstarted(const KINFO *k, const struct varent *vent)
 379 {
 380         time_t then;
 381         char buf[100];
 382
 383         then = KI_PROC(k, start).tv_sec;
 384         strftime(buf, sizeof(buf) -1, "%c", localtime(&then));
 385         printf("%-*s", vent->width, buf);
 386 }
 387
 388 void
 389 wchan(const KINFO *k, const struct varent *vent)
 390 {
 391         if (*KI_LWP(k, wmesg)) {
 392                 printf("%-*.*s", vent->width, vent->width,
 393                        KI_LWP(k, wmesg));
 394         } else {
 395                 printf("%-*s", vent->width, "-");
 396         }
 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_PROC(k, 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_PROC(k, 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_PROC(k, 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         u_int64_t timeus;
 428         char obuff[128];
 429         static char decimal_point = '\0';
 430
 431         if (decimal_point == '\0')
 432                 decimal_point = localeconv()->decimal_point[0];
 433
 434         /*
 435          * This counts time spent handling interrupts.  We could
 436          * fix this, but it is not 100% trivial (and interrupt
 437          * time fractions only work on the sparc anyway).       XXX
 438          */
 439         timeus = KI_LWP(k, uticks) + KI_LWP(k, sticks) +
 440                 KI_LWP(k, iticks);
 441         secs = timeus / 1000000;
 442         psecs = timeus % 1000000;
 443         if (sumrusage) {
 444                 secs += KI_PROC(k, cru).ru_utime.tv_sec +
 445                         KI_PROC(k, cru).ru_stime.tv_sec;
 446                 psecs += KI_PROC(k, cru).ru_utime.tv_usec +
 447                         KI_PROC(k, cru).ru_stime.tv_usec;
 448         }
 449         /*
 450          * round and scale to 100's
 451          */
 452         psecs = (psecs + 5000) / 10000;
 453         secs += psecs / 100;
 454         psecs = psecs % 100;
 455         snprintf(obuff, sizeof(obuff),
 456             "%3ld:%02ld%c%02ld", secs/60, secs%60, decimal_point, psecs);
 457         printf("%*s", vent->width, obuff);
 458 }
 459
 460 double
 461 getpcpu(const KINFO *k)
 462 {
 463         static int failure;
 464
 465         if (!nlistread)
 466                 failure = donlist();
 467         if (failure)
 468                 return (0.0);
 469
 470 #define fxtofl(fixpt)   ((double)(fixpt) / fscale)
 471
 472         /* XXX - I don't like this */
 473         if (KI_PROC(k, swtime) == 0 || (KI_PROC(k, flags) & P_SWAPPEDOUT))
 474                 return (0.0);
 475         if (rawcpu)
 476                 return (100.0 * fxtofl(KI_LWP(k, pctcpu)));
 477         return (100.0 * fxtofl(KI_LWP(k, pctcpu)) /
 478                 (1.0 - exp(KI_PROC(k, swtime) * log(fxtofl(ccpu)))));
 479 }
 480
 481 void
 482 pcpu(const KINFO *k, const struct varent *vent)
 483 {
 484         printf("%*.1f", vent->width, getpcpu(k));
 485 }
 486
 487 void
 488 pnice(const KINFO *k, const struct varent *vent)
 489 {
 490         int niceval;
 491
 492         switch (KI_LWP(k, rtprio).type) {
 493         case RTP_PRIO_REALTIME:
 494                 niceval = PRIO_MIN - 1 - RTP_PRIO_MAX + KI_LWP(k, rtprio).prio;
 495                 break;
 496         case RTP_PRIO_IDLE:
 497                 niceval = PRIO_MAX + 1 + KI_LWP(k, rtprio).prio;
 498                 break;
 499         case RTP_PRIO_THREAD:
 500                 niceval = PRIO_MIN - 1 - RTP_PRIO_MAX - KI_LWP(k, rtprio).prio;
 501                 break;
 502         default:
 503                 niceval = KI_PROC(k, nice) - NZERO;
 504                 break;
 505         }
 506         printf("%*d", vent->width, niceval);
 507 }
 508
 509
 510 double
 511 getpmem(const KINFO *k)
 512 {
 513         static int failure;
 514         double fracmem;
 515         int szptudot;
 516
 517         if (!nlistread)
 518                 failure = donlist();
 519         if (failure)
 520                 return (0.0);
 521
 522         if (KI_PROC(k, flags) & P_SWAPPEDOUT)
 523                 return (0.0);
 524         /* XXX want pmap ptpages, segtab, etc. (per architecture) */
 525         szptudot = UPAGES;
 526         /* XXX don't have info about shared */
 527         fracmem = ((float)KI_PROC(k, vm_rssize) + szptudot)/mempages;
 528         return (100.0 * fracmem);
 529 }
 530
 531 void
 532 pmem(const KINFO *k, const struct varent *vent)
 533 {
 534         printf("%*.1f", vent->width, getpmem(k));
 535 }
 536
 537 void
 538 pagein(const KINFO *k, const struct varent *vent)
 539 {
 540         printf("%*ld", vent->width, KI_LWP(k, ru).ru_majflt);
 541 }
 542
 543 /* ARGSUSED */
 544 void
 545 maxrss(const KINFO *k __unused, const struct varent *vent)
 546 {
 547         printf("%*ld", vent->width, KI_PROC(k, ru).ru_maxrss);
 548 }
 549
 550 void
 551 tsize(const KINFO *k, const struct varent *vent)
 552 {
 553         printf("%*ld", vent->width, (long)pgtok(KI_PROC(k, vm_tsize)));
 554 }
 555
 556 void
 557 rtprior(const KINFO *k, const struct varent *vent)
 558 {
 559         struct rtprio *prtp;
 560         char str[8];
 561         unsigned prio, type;
 562
 563         prtp = &KI_LWP(k, rtprio);
 564         prio = prtp->prio;
 565         type = prtp->type;
 566         switch (type) {
 567         case RTP_PRIO_REALTIME:
 568                 snprintf(str, sizeof(str), "real:%u", prio);
 569                 break;
 570         case RTP_PRIO_NORMAL:
 571                 strncpy(str, "normal", sizeof(str));
 572                 break;
 573         case RTP_PRIO_IDLE:
 574                 snprintf(str, sizeof(str), "idle:%u", prio);
 575                 break;
 576         default:
 577                 snprintf(str, sizeof(str), "%u:%u", type, prio);
 578                 break;
 579         }
 580         str[sizeof(str) - 1] = '\0';
 581         printf("%*s", vent->width, str);
 582 }
 583
 584 /*
 585  * Generic output routines.  Print fields from various prototype
 586  * structures.
 587  */
 588 static void
 589 printval(const char *bp, const struct varent *vent)
 590 {
 591         static char ofmt[32] = "%";
 592         const char *fcp;
 593         char *cp;
 594
 595         cp = ofmt + 1;
 596         fcp = vent->var->fmt;
 597         if (vent->var->flag & LJUST)
 598                 *cp++ = '-';
 599         *cp++ = '*';
 600         while ((*cp++ = *fcp++));
 601
 602         switch (vent->var->type) {
 603         case CHAR:
 604                 printf(ofmt, vent->width, *(const char *)bp);
 605                 break;
 606         case UCHAR:
 607                 printf(ofmt, vent->width, *(const u_char *)bp);
 608                 break;
 609         case SHORT:
 610                 printf(ofmt, vent->width, *(const short *)bp);
 611                 break;
 612         case USHORT:
 613                 printf(ofmt, vent->width, *(const u_short *)bp);
 614                 break;
 615         case INT:
 616                 printf(ofmt, vent->width, *(const int *)bp);
 617                 break;
 618         case UINT:
 619                 printf(ofmt, vent->width, *(const u_int *)bp);
 620                 break;
 621         case LONG:
 622                 printf(ofmt, vent->width, *(const long *)bp);
 623                 break;
 624         case ULONG:
 625                 printf(ofmt, vent->width, *(const u_long *)bp);
 626                 break;
 627         case KPTR:
 628                 printf(ofmt, vent->width, *(const u_long *)bp);
 629                 break;
 630         default:
 631                 errx(1, "unknown type %d", vent->var->type);
 632         }
 633 }
 634
 635 void
 636 pvar(const KINFO *k, const struct varent *vent)
 637 {
 638         printval((char *)((char *)k->ki_proc + vent->var->off), vent);
 639 }
 640
 641 void
 642 lpest(const KINFO *k, const struct varent *vent)
 643 {
 644         int val;
 645
 646         val = *(int *)((char *)&k->ki_proc->kp_lwp + vent->var->off);
 647         val = val / 128;
 648         printval((char *)&val, vent);
 649 }
 650
 651
 652 void
 653 lpvar(const KINFO *k, const struct varent *vent)
 654 {
 655         printval((char *)((char *)&k->ki_proc->kp_lwp + vent->var->off), vent);
 656 }
 657
 658 void
 659 rvar(const KINFO *k, const struct varent *vent)
 660 {
 661         printval(((const char *)&KI_LWP(k, ru) + vent->var->off), vent);
 662 }
 663
 664 static const char *
 665 make_printable(const char *str)
 666 {
 667     static char *cpy;
 668     int len;
 669
 670     if (cpy)
 671         free(cpy);
 672     len = strlen(str);
 673     if ((cpy = malloc(len * 4 + 1)) == NULL)
 674         err(1, NULL);
 675     strvis(cpy, str, VIS_TAB | VIS_NL | VIS_NOSLASH);
 676     return(cpy);
 677 }