bin/ps/print.c

   1 /*-
   2  * SPDX-License-Identifier: BSD-3-Clause
   3  *
   4  * Copyright (c) 1990, 1993, 1994
   5  *      The Regents of the University of California.  All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. Neither the name of the University nor the names of its contributors
  16  *    may be used to endorse or promote products derived from this software
  17  *    without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  29  * SUCH DAMAGE.
  30  */
  31
  32 #include <sys/param.h>
  33 #include <sys/time.h>
  34 #include <sys/resource.h>
  35 #include <sys/proc.h>
  36 #include <sys/stat.h>
  37
  38 #include <sys/mac.h>
  39 #include <sys/user.h>
  40 #include <sys/sysctl.h>
  41 #include <sys/vmmeter.h>
  42
  43 #include <grp.h>
  44 #include <jail.h>
  45 #include <langinfo.h>
  46 #include <locale.h>
  47 #include <math.h>
  48 #include <nlist.h>
  49 #include <pwd.h>
  50 #include <stddef.h>
  51 #include <stdint.h>
  52 #include <stdio.h>
  53 #include <stdlib.h>
  54 #include <string.h>
  55 #include <unistd.h>
  56 #include <vis.h>
  57 #include <libxo/xo.h>
  58
  59 #include "ps.h"
  60
  61 #define COMMAND_WIDTH   16
  62 #define ARGUMENTS_WIDTH 16
  63
  64 #define ps_pgtok(a)     (((a) * getpagesize()) / 1024)
  65
  66 void
  67 printheader(void)
  68 {
  69         VAR *v;
  70         struct varent *vent;
  71
  72         STAILQ_FOREACH(vent, &varlist, next_ve)
  73                 if (*vent->header != '\0')
  74                         break;
  75         if (!vent)
  76                 return;
  77
  78         STAILQ_FOREACH(vent, &varlist, next_ve) {
  79                 v = vent->var;
  80                 if (v->flag & LJUST) {
  81                         if (STAILQ_NEXT(vent, next_ve) == NULL) /* last one */
  82                                 xo_emit("{T:/%hs}", vent->header);
  83                         else
  84                                 xo_emit("{T:/%-*hs}", v->width, vent->header);
  85                 } else
  86                         xo_emit("{T:/%*hs}", v->width, vent->header);
  87                 if (STAILQ_NEXT(vent, next_ve) != NULL)
  88                         xo_emit("{P: }");
  89         }
  90         xo_emit("\n");
  91 }
  92
  93 char *
  94 arguments(KINFO *k, VARENT *ve)
  95 {
  96         char *vis_args;
  97
  98         if ((vis_args = malloc(strlen(k->ki_args) * 4 + 1)) == NULL)
  99                 xo_errx(1, "malloc failed");
 100         strvis(vis_args, k->ki_args, VIS_TAB | VIS_NL | VIS_NOSLASH);
 101
 102         if (STAILQ_NEXT(ve, next_ve) != NULL && strlen(vis_args) > ARGUMENTS_WIDTH)
 103                 vis_args[ARGUMENTS_WIDTH] = '\0';
 104
 105         return (vis_args);
 106 }
 107
 108 char *
 109 command(KINFO *k, VARENT *ve)
 110 {
 111         char *vis_args, *vis_env, *str;
 112
 113         if (cflag) {
 114                 /* If it is the last field, then don't pad */
 115                 if (STAILQ_NEXT(ve, next_ve) == NULL) {
 116                         asprintf(&str, "%s%s%s%s%s",
 117                             k->ki_d.prefix ? k->ki_d.prefix : "",
 118                             k->ki_p->ki_comm,
 119                             (showthreads && k->ki_p->ki_numthreads > 1) ? "/" : "",
 120                             (showthreads && k->ki_p->ki_numthreads > 1) ? k->ki_p->ki_tdname : "",
 121                             (showthreads && k->ki_p->ki_numthreads > 1) ? k->ki_p->ki_moretdname : "");
 122                 } else
 123                         str = strdup(k->ki_p->ki_comm);
 124
 125                 return (str);
 126         }
 127         if ((vis_args = malloc(strlen(k->ki_args) * 4 + 1)) == NULL)
 128                 xo_errx(1, "malloc failed");
 129         strvis(vis_args, k->ki_args, VIS_TAB | VIS_NL | VIS_NOSLASH);
 130
 131         if (STAILQ_NEXT(ve, next_ve) == NULL) {
 132                 /* last field */
 133
 134                 if (k->ki_env) {
 135                         if ((vis_env = malloc(strlen(k->ki_env) * 4 + 1))
 136                             == NULL)
 137                                 xo_errx(1, "malloc failed");
 138                         strvis(vis_env, k->ki_env,
 139                             VIS_TAB | VIS_NL | VIS_NOSLASH);
 140                 } else
 141                         vis_env = NULL;
 142
 143                 asprintf(&str, "%s%s%s%s",
 144                     k->ki_d.prefix ? k->ki_d.prefix : "",
 145                     vis_env ? vis_env : "",
 146                     vis_env ? " " : "",
 147                     vis_args);
 148
 149                 if (vis_env != NULL)
 150                         free(vis_env);
 151                 free(vis_args);
 152         } else {
 153                 /* ki_d.prefix & ki_env aren't shown for interim fields */
 154                 str = vis_args;
 155
 156                 if (strlen(str) > COMMAND_WIDTH)
 157                         str[COMMAND_WIDTH] = '\0';
 158         }
 159
 160         return (str);
 161 }
 162
 163 char *
 164 ucomm(KINFO *k, VARENT *ve)
 165 {
 166         char *str;
 167
 168         if (STAILQ_NEXT(ve, next_ve) == NULL) { /* last field, don't pad */
 169                 asprintf(&str, "%s%s%s%s%s",
 170                     k->ki_d.prefix ? k->ki_d.prefix : "",
 171                     k->ki_p->ki_comm,
 172                     (showthreads && k->ki_p->ki_numthreads > 1) ? "/" : "",
 173                     (showthreads && k->ki_p->ki_numthreads > 1) ? k->ki_p->ki_tdname : "",
 174                     (showthreads && k->ki_p->ki_numthreads > 1) ? k->ki_p->ki_moretdname : "");
 175         } else {
 176                 if (showthreads && k->ki_p->ki_numthreads > 1)
 177                         asprintf(&str, "%s/%s%s", k->ki_p->ki_comm,
 178                             k->ki_p->ki_tdname, k->ki_p->ki_moretdname);
 179                 else
 180                         str = strdup(k->ki_p->ki_comm);
 181         }
 182         return (str);
 183 }
 184
 185 char *
 186 tdnam(KINFO *k, VARENT *ve __unused)
 187 {
 188         char *str;
 189
 190         if (showthreads && k->ki_p->ki_numthreads > 1)
 191                 asprintf(&str, "%s%s", k->ki_p->ki_tdname,
 192                     k->ki_p->ki_moretdname);
 193         else
 194                 str = strdup("      ");
 195
 196         return (str);
 197 }
 198
 199 char *
 200 logname(KINFO *k, VARENT *ve __unused)
 201 {
 202
 203         if (*k->ki_p->ki_login == '\0')
 204                 return (NULL);
 205         return (strdup(k->ki_p->ki_login));
 206 }
 207
 208 char *
 209 state(KINFO *k, VARENT *ve __unused)
 210 {
 211         long flag, tdflags;
 212         char *cp, *buf;
 213
 214         buf = malloc(16);
 215         if (buf == NULL)
 216                 xo_errx(1, "malloc failed");
 217
 218         flag = k->ki_p->ki_flag;
 219         tdflags = k->ki_p->ki_tdflags;  /* XXXKSE */
 220         cp = buf;
 221
 222         switch (k->ki_p->ki_stat) {
 223
 224         case SSTOP:
 225                 *cp = 'T';
 226                 break;
 227
 228         case SSLEEP:
 229                 if (tdflags & TDF_SINTR)        /* interruptible (long) */
 230                         *cp = k->ki_p->ki_slptime >= MAXSLP ? 'I' : 'S';
 231                 else
 232                         *cp = 'D';
 233                 break;
 234
 235         case SRUN:
 236         case SIDL:
 237                 *cp = 'R';
 238                 break;
 239
 240         case SWAIT:
 241                 *cp = 'W';
 242                 break;
 243
 244         case SLOCK:
 245                 *cp = 'L';
 246                 break;
 247
 248         case SZOMB:
 249                 *cp = 'Z';
 250                 break;
 251
 252         default:
 253                 *cp = '?';
 254         }
 255         cp++;
 256         if (k->ki_p->ki_nice < NZERO || k->ki_p->ki_pri.pri_class == PRI_REALTIME)
 257                 *cp++ = '<';
 258         else if (k->ki_p->ki_nice > NZERO || k->ki_p->ki_pri.pri_class == PRI_IDLE)
 259                 *cp++ = 'N';
 260         if (flag & P_TRACED)
 261                 *cp++ = 'X';
 262         if (flag & P_WEXIT && k->ki_p->ki_stat != SZOMB)
 263                 *cp++ = 'E';
 264         if (flag & P_PPWAIT)
 265                 *cp++ = 'V';
 266         if ((flag & P_SYSTEM) || k->ki_p->ki_lock > 0)
 267                 *cp++ = 'L';
 268         if ((k->ki_p->ki_cr_flags & CRED_FLAG_CAPMODE) != 0)
 269                 *cp++ = 'C';
 270         if (k->ki_p->ki_kiflag & KI_SLEADER)
 271                 *cp++ = 's';
 272         if ((flag & P_CONTROLT) && k->ki_p->ki_pgid == k->ki_p->ki_tpgid)
 273                 *cp++ = '+';
 274         if (flag & P_JAILED)
 275                 *cp++ = 'J';
 276         *cp = '\0';
 277         return (buf);
 278 }
 279
 280 #define scalepri(x)     ((x) - PZERO)
 281
 282 char *
 283 pri(KINFO *k, VARENT *ve __unused)
 284 {
 285         char *str;
 286
 287         asprintf(&str, "%d", scalepri(k->ki_p->ki_pri.pri_level));
 288         return (str);
 289 }
 290
 291 char *
 292 upr(KINFO *k, VARENT *ve __unused)
 293 {
 294         char *str;
 295
 296         asprintf(&str, "%d", scalepri(k->ki_p->ki_pri.pri_user));
 297         return (str);
 298 }
 299 #undef scalepri
 300
 301 char *
 302 username(KINFO *k, VARENT *ve __unused)
 303 {
 304
 305         return (strdup(user_from_uid(k->ki_p->ki_uid, 0)));
 306 }
 307
 308 char *
 309 egroupname(KINFO *k, VARENT *ve __unused)
 310 {
 311
 312         return (strdup(group_from_gid(k->ki_p->ki_groups[0], 0)));
 313 }
 314
 315 char *
 316 rgroupname(KINFO *k, VARENT *ve __unused)
 317 {
 318
 319         return (strdup(group_from_gid(k->ki_p->ki_rgid, 0)));
 320 }
 321
 322 char *
 323 runame(KINFO *k, VARENT *ve __unused)
 324 {
 325
 326         return (strdup(user_from_uid(k->ki_p->ki_ruid, 0)));
 327 }
 328
 329 char *
 330 tdev(KINFO *k, VARENT *ve __unused)
 331 {
 332         dev_t dev;
 333         char *str;
 334
 335         dev = k->ki_p->ki_tdev;
 336         if (dev == NODEV)
 337                 str = strdup("-");
 338         else
 339                 asprintf(&str, "%#jx", (uintmax_t)dev);
 340
 341         return (str);
 342 }
 343
 344 char *
 345 tname(KINFO *k, VARENT *ve __unused)
 346 {
 347         dev_t dev;
 348         char *ttname, *str;
 349
 350         dev = k->ki_p->ki_tdev;
 351         if (dev == NODEV || (ttname = devname(dev, S_IFCHR)) == NULL)
 352                 str = strdup("- ");
 353         else {
 354                 if (strncmp(ttname, "tty", 3) == 0 ||
 355                     strncmp(ttname, "cua", 3) == 0)
 356                         ttname += 3;
 357                 if (strncmp(ttname, "pts/", 4) == 0)
 358                         ttname += 4;
 359                 asprintf(&str, "%s%c", ttname,
 360                     k->ki_p->ki_kiflag & KI_CTTY ? ' ' : '-');
 361         }
 362
 363         return (str);
 364 }
 365
 366 char *
 367 longtname(KINFO *k, VARENT *ve __unused)
 368 {
 369         dev_t dev;
 370         const char *ttname;
 371
 372         dev = k->ki_p->ki_tdev;
 373         if (dev == NODEV || (ttname = devname(dev, S_IFCHR)) == NULL)
 374                 ttname = "-";
 375
 376         return (strdup(ttname));
 377 }
 378
 379 char *
 380 started(KINFO *k, VARENT *ve __unused)
 381 {
 382         time_t then;
 383         struct tm *tp;
 384         size_t buflen = 100;
 385         char *buf;
 386
 387         if (!k->ki_valid)
 388                 return (NULL);
 389
 390         buf = malloc(buflen);
 391         if (buf == NULL)
 392                 xo_errx(1, "malloc failed");
 393
 394         then = k->ki_p->ki_start.tv_sec;
 395         tp = localtime(&then);
 396         if (now - k->ki_p->ki_start.tv_sec < 24 * 3600) {
 397                 (void)strftime(buf, buflen, "%H:%M  ", tp);
 398         } else if (now - k->ki_p->ki_start.tv_sec < 7 * 86400) {
 399                 (void)strftime(buf, buflen, "%a%H  ", tp);
 400         } else
 401                 (void)strftime(buf, buflen, "%e%b%y", tp);
 402         return (buf);
 403 }
 404
 405 char *
 406 lstarted(KINFO *k, VARENT *ve __unused)
 407 {
 408         time_t then;
 409         char *buf;
 410         size_t buflen = 100;
 411
 412         if (!k->ki_valid)
 413                 return (NULL);
 414
 415         buf = malloc(buflen);
 416         if (buf == NULL)
 417                 xo_errx(1, "malloc failed");
 418
 419         then = k->ki_p->ki_start.tv_sec;
 420         (void)strftime(buf, buflen, "%c", localtime(&then));
 421         return (buf);
 422 }
 423
 424 char *
 425 lockname(KINFO *k, VARENT *ve __unused)
 426 {
 427         char *str;
 428
 429         if (k->ki_p->ki_kiflag & KI_LOCKBLOCK) {
 430                 if (k->ki_p->ki_lockname[0] != 0)
 431                         str = strdup(k->ki_p->ki_lockname);
 432                 else
 433                         str = strdup("???");
 434         } else
 435                 str = NULL;
 436
 437         return (str);
 438 }
 439
 440 char *
 441 wchan(KINFO *k, VARENT *ve __unused)
 442 {
 443         char *str;
 444
 445         if (k->ki_p->ki_wchan) {
 446                 if (k->ki_p->ki_wmesg[0] != 0)
 447                         str = strdup(k->ki_p->ki_wmesg);
 448                 else
 449                         asprintf(&str, "%lx", (long)k->ki_p->ki_wchan);
 450         } else
 451                 str = NULL;
 452
 453         return (str);
 454 }
 455
 456 char *
 457 nwchan(KINFO *k, VARENT *ve __unused)
 458 {
 459         char *str;
 460
 461         if (k->ki_p->ki_wchan)
 462                 asprintf(&str, "%0lx", (long)k->ki_p->ki_wchan);
 463         else
 464                 str = NULL;
 465
 466         return (str);
 467 }
 468
 469 char *
 470 mwchan(KINFO *k, VARENT *ve __unused)
 471 {
 472         char *str;
 473
 474         if (k->ki_p->ki_wchan) {
 475                 if (k->ki_p->ki_wmesg[0] != 0)
 476                         str = strdup(k->ki_p->ki_wmesg);
 477                 else
 478                         asprintf(&str, "%lx", (long)k->ki_p->ki_wchan);
 479         } else if (k->ki_p->ki_kiflag & KI_LOCKBLOCK) {
 480                 if (k->ki_p->ki_lockname[0]) {
 481                         str = strdup(k->ki_p->ki_lockname);
 482                 } else
 483                         str = strdup("???");
 484         } else
 485                 str = NULL;
 486
 487         return (str);
 488 }
 489
 490 char *
 491 vsize(KINFO *k, VARENT *ve __unused)
 492 {
 493         char *str;
 494
 495         asprintf(&str, "%lu", (u_long)(k->ki_p->ki_size / 1024));
 496         return (str);
 497 }
 498
 499 static char *
 500 printtime(KINFO *k, VARENT *ve __unused, long secs, long psecs)
 501 /* psecs is "parts" of a second. first micro, then centi */
 502 {
 503         static char decimal_point;
 504         char *str;
 505
 506         if (decimal_point == '\0')
 507                 decimal_point = localeconv()->decimal_point[0];
 508         if (!k->ki_valid) {
 509                 secs = 0;
 510                 psecs = 0;
 511         } else {
 512                 /* round and scale to 100's */
 513                 psecs = (psecs + 5000) / 10000;
 514                 secs += psecs / 100;
 515                 psecs = psecs % 100;
 516         }
 517         asprintf(&str, "%ld:%02ld%c%02ld",
 518             secs / 60, secs % 60, decimal_point, psecs);
 519         return (str);
 520 }
 521
 522 char *
 523 cputime(KINFO *k, VARENT *ve)
 524 {
 525         long secs, psecs;
 526
 527         /*
 528          * This counts time spent handling interrupts.  We could
 529          * fix this, but it is not 100% trivial (and interrupt
 530          * time fractions only work on the sparc anyway).       XXX
 531          */
 532         secs = k->ki_p->ki_runtime / 1000000;
 533         psecs = k->ki_p->ki_runtime % 1000000;
 534         if (sumrusage) {
 535                 secs += k->ki_p->ki_childtime.tv_sec;
 536                 psecs += k->ki_p->ki_childtime.tv_usec;
 537         }
 538         return (printtime(k, ve, secs, psecs));
 539 }
 540
 541 char *
 542 cpunum(KINFO *k, VARENT *ve __unused)
 543 {
 544         char *cpu;
 545
 546         if (k->ki_p->ki_stat == SRUN && k->ki_p->ki_oncpu != NOCPU) {
 547                 asprintf(&cpu, "%d", k->ki_p->ki_oncpu);
 548         } else {
 549                 asprintf(&cpu, "%d", k->ki_p->ki_lastcpu);
 550         }
 551         return (cpu);
 552 }
 553
 554 char *
 555 systime(KINFO *k, VARENT *ve)
 556 {
 557         long secs, psecs;
 558
 559         secs = k->ki_p->ki_rusage.ru_stime.tv_sec;
 560         psecs = k->ki_p->ki_rusage.ru_stime.tv_usec;
 561         if (sumrusage) {
 562                 secs += k->ki_p->ki_childstime.tv_sec;
 563                 psecs += k->ki_p->ki_childstime.tv_usec;
 564         }
 565         return (printtime(k, ve, secs, psecs));
 566 }
 567
 568 char *
 569 usertime(KINFO *k, VARENT *ve)
 570 {
 571         long secs, psecs;
 572
 573         secs = k->ki_p->ki_rusage.ru_utime.tv_sec;
 574         psecs = k->ki_p->ki_rusage.ru_utime.tv_usec;
 575         if (sumrusage) {
 576                 secs += k->ki_p->ki_childutime.tv_sec;
 577                 psecs += k->ki_p->ki_childutime.tv_usec;
 578         }
 579         return (printtime(k, ve, secs, psecs));
 580 }
 581
 582 char *
 583 elapsed(KINFO *k, VARENT *ve __unused)
 584 {
 585         time_t val;
 586         int days, hours, mins, secs;
 587         char *str;
 588
 589         if (!k->ki_valid)
 590                 return (NULL);
 591         val = now - k->ki_p->ki_start.tv_sec;
 592         days = val / (24 * 60 * 60);
 593         val %= 24 * 60 * 60;
 594         hours = val / (60 * 60);
 595         val %= 60 * 60;
 596         mins = val / 60;
 597         secs = val % 60;
 598         if (days != 0)
 599                 asprintf(&str, "%3d-%02d:%02d:%02d", days, hours, mins, secs);
 600         else if (hours != 0)
 601                 asprintf(&str, "%02d:%02d:%02d", hours, mins, secs);
 602         else
 603                 asprintf(&str, "%02d:%02d", mins, secs);
 604
 605         return (str);
 606 }
 607
 608 char *
 609 elapseds(KINFO *k, VARENT *ve __unused)
 610 {
 611         time_t val;
 612         char *str;
 613
 614         if (!k->ki_valid)
 615                 return (NULL);
 616         val = now - k->ki_p->ki_start.tv_sec;
 617         asprintf(&str, "%jd", (intmax_t)val);
 618         return (str);
 619 }
 620
 621 double
 622 getpcpu(const KINFO *k)
 623 {
 624         static int failure;
 625
 626         if (!nlistread)
 627                 failure = donlist();
 628         if (failure)
 629                 return (0.0);
 630
 631 #define fxtofl(fixpt)   ((double)(fixpt) / fscale)
 632
 633         /* XXX - I don't like this */
 634         if (k->ki_p->ki_swtime == 0)
 635                 return (0.0);
 636         if (rawcpu)
 637                 return (100.0 * fxtofl(k->ki_p->ki_pctcpu));
 638         return (100.0 * fxtofl(k->ki_p->ki_pctcpu) /
 639                 (1.0 - exp(k->ki_p->ki_swtime * log(fxtofl(ccpu)))));
 640 }
 641
 642 char *
 643 pcpu(KINFO *k, VARENT *ve __unused)
 644 {
 645         char *str;
 646
 647         asprintf(&str, "%.1f", getpcpu(k));
 648         return (str);
 649 }
 650
 651 static double
 652 getpmem(KINFO *k)
 653 {
 654         static int failure;
 655         double fracmem;
 656
 657         if (!nlistread)
 658                 failure = donlist();
 659         if (failure)
 660                 return (0.0);
 661
 662         /* XXX want pmap ptpages, segtab, etc. (per architecture) */
 663         /* XXX don't have info about shared */
 664         fracmem = ((double)k->ki_p->ki_rssize) / mempages;
 665         return (100.0 * fracmem);
 666 }
 667
 668 char *
 669 pmem(KINFO *k, VARENT *ve __unused)
 670 {
 671         char *str;
 672
 673         asprintf(&str, "%.1f", getpmem(k));
 674         return (str);
 675 }
 676
 677 char *
 678 pagein(KINFO *k, VARENT *ve __unused)
 679 {
 680         char *str;
 681
 682         asprintf(&str, "%ld", k->ki_valid ? k->ki_p->ki_rusage.ru_majflt : 0);
 683         return (str);
 684 }
 685
 686 /* ARGSUSED */
 687 char *
 688 maxrss(KINFO *k __unused, VARENT *ve __unused)
 689 {
 690
 691         /* XXX not yet */
 692         return (NULL);
 693 }
 694
 695 char *
 696 priorityr(KINFO *k, VARENT *ve __unused)
 697 {
 698         struct priority *lpri;
 699         char *str;
 700         unsigned class, level;
 701
 702         lpri = &k->ki_p->ki_pri;
 703         class = lpri->pri_class;
 704         level = lpri->pri_level;
 705         switch (class) {
 706         case RTP_PRIO_REALTIME:
 707         /* alias for PRI_REALTIME */
 708                 asprintf(&str, "real:%u", level - PRI_MIN_REALTIME);
 709                 break;
 710         case RTP_PRIO_NORMAL:
 711         /* alias for PRI_TIMESHARE */
 712                 if (level >= PRI_MIN_TIMESHARE)
 713                         asprintf(&str, "normal:%u", level - PRI_MIN_TIMESHARE);
 714                 else
 715                         asprintf(&str, "kernel:%u", level - PRI_MIN_KERN);
 716                 break;
 717         case RTP_PRIO_IDLE:
 718         /* alias for PRI_IDLE */
 719                 asprintf(&str, "idle:%u", level - PRI_MIN_IDLE);
 720                 break;
 721         case RTP_PRIO_ITHD:
 722         /* alias for PRI_ITHD */
 723                 asprintf(&str, "intr:%u", level - PRI_MIN_ITHD);
 724                 break;
 725         default:
 726                 asprintf(&str, "%u:%u", class, level);
 727                 break;
 728         }
 729         return (str);
 730 }
 731
 732 /*
 733  * Generic output routines.  Print fields from various prototype
 734  * structures.
 735  */
 736 static char *
 737 printval(void *bp, VAR *v)
 738 {
 739         static char ofmt[32] = "%";
 740         const char *fcp;
 741         char *cp, *str;
 742
 743         cp = ofmt + 1;
 744         fcp = v->fmt;
 745         while ((*cp++ = *fcp++));
 746
 747 #define CHKINF127(n)    (((n) > 127) && (v->flag & INF127) ? 127 : (n))
 748
 749         switch (v->type) {
 750         case CHAR:
 751                 (void)asprintf(&str, ofmt, *(char *)bp);
 752                 break;
 753         case UCHAR:
 754                 (void)asprintf(&str, ofmt, *(u_char *)bp);
 755                 break;
 756         case SHORT:
 757                 (void)asprintf(&str, ofmt, *(short *)bp);
 758                 break;
 759         case USHORT:
 760                 (void)asprintf(&str, ofmt, *(u_short *)bp);
 761                 break;
 762         case INT:
 763                 (void)asprintf(&str, ofmt, *(int *)bp);
 764                 break;
 765         case UINT:
 766                 (void)asprintf(&str, ofmt, CHKINF127(*(u_int *)bp));
 767                 break;
 768         case LONG:
 769                 (void)asprintf(&str, ofmt, *(long *)bp);
 770                 break;
 771         case ULONG:
 772                 (void)asprintf(&str, ofmt, *(u_long *)bp);
 773                 break;
 774         case KPTR:
 775                 (void)asprintf(&str, ofmt, *(u_long *)bp);
 776                 break;
 777         case PGTOK:
 778                 (void)asprintf(&str, ofmt, ps_pgtok(*(u_long *)bp));
 779                 break;
 780         }
 781
 782         return (str);
 783 }
 784
 785 char *
 786 kvar(KINFO *k, VARENT *ve)
 787 {
 788         VAR *v;
 789
 790         v = ve->var;
 791         return (printval((char *)((char *)k->ki_p + v->off), v));
 792 }
 793
 794 char *
 795 rvar(KINFO *k, VARENT *ve)
 796 {
 797         VAR *v;
 798
 799         v = ve->var;
 800         if (!k->ki_valid)
 801                 return (NULL);
 802         return (printval((char *)((char *)(&k->ki_p->ki_rusage) + v->off), v));
 803 }
 804
 805 char *
 806 emulname(KINFO *k, VARENT *ve __unused)
 807 {
 808
 809         return (strdup(k->ki_p->ki_emul));
 810 }
 811
 812 char *
 813 label(KINFO *k, VARENT *ve __unused)
 814 {
 815         char *string;
 816         mac_t proclabel;
 817         int error;
 818
 819         string = NULL;
 820         if (mac_prepare_process_label(&proclabel) == -1) {
 821                 xo_warn("mac_prepare_process_label");
 822                 goto out;
 823         }
 824         error = mac_get_pid(k->ki_p->ki_pid, proclabel);
 825         if (error == 0) {
 826                 if (mac_to_text(proclabel, &string) == -1)
 827                         string = NULL;
 828         }
 829         mac_free(proclabel);
 830 out:
 831         return (string);
 832 }
 833
 834 char *
 835 loginclass(KINFO *k, VARENT *ve __unused)
 836 {
 837
 838         /*
 839          * Don't display login class for system processes;
 840          * login classes are used for resource limits,
 841          * and limits don't apply to system processes.
 842          */
 843         if (k->ki_p->ki_flag & P_SYSTEM) {
 844                 return (strdup("-"));
 845         }
 846         return (strdup(k->ki_p->ki_loginclass));
 847 }
 848
 849 char *
 850 jailname(KINFO *k, VARENT *ve __unused)
 851 {
 852         char *name;
 853
 854         if (k->ki_p->ki_jid == 0)
 855                 return (strdup("-"));
 856         name = jail_getname(k->ki_p->ki_jid);
 857         if (name == NULL)
 858                 return (strdup("-"));
 859         return (name);
 860 }