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. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * @(#)print.c 8.6 (Berkeley) 4/16/94 30 * $FreeBSD: src/bin/ps/print.c,v 1.36.2.4 2002/11/30 13:00:14 tjr Exp $ 31 * $DragonFly: src/bin/ps/print.c,v 1.34 2008/11/10 14:56:33 swildner Exp $ 32 */ 33 34 #include <sys/user.h> 35 #include <sys/param.h> 36 #include <sys/time.h> 37 #include <sys/resource.h> 38 #include <sys/stat.h> 39 40 #include <sys/ucred.h> 41 #include <sys/sysctl.h> 42 #include <sys/rtprio.h> 43 #include <vm/vm.h> 44 45 #include <err.h> 46 #include <langinfo.h> 47 #include <locale.h> 48 #include <math.h> 49 #include <nlist.h> 50 #include <pwd.h> 51 #include <stddef.h> 52 #include <stdio.h> 53 #include <stdlib.h> 54 #include <unistd.h> 55 #include <string.h> 56 #include <vis.h> 57 58 #include "ps.h" 59 60 static const char *make_printable(const char *str); 61 static const char *make_printable2(const char *str); 62 static void put64(u_int64_t n, int w, int type); 63 64 #define SHOW_THRNAME(k) \ 65 (showtid && KI_PROC(k, pid) != -1 && KI_PROC(k, nthreads) > 1) 66 67 void 68 printheader(void) 69 { 70 const VAR *v; 71 struct varent *vent; 72 int allempty; 73 74 allempty = 1; 75 STAILQ_FOREACH(vent, &var_head, link) { 76 if (*vent->header != '\0') { 77 allempty = 0; 78 break; 79 } 80 } 81 if (allempty) 82 return; 83 STAILQ_FOREACH(vent, &var_head, link) { 84 v = vent->var; 85 if (v->flag & LJUST) { 86 if (STAILQ_NEXT(vent, link) == NULL) /* last one */ 87 printf("%s", vent->header); 88 else 89 printf("%-*s", vent->width, vent->header); 90 } else 91 printf("%*s", vent->width, vent->header); 92 if (STAILQ_NEXT(vent, link) != NULL) 93 putchar(' '); 94 } 95 putchar('\n'); 96 } 97 98 void 99 command(const KINFO *k, const struct varent *vent) 100 { 101 int left; 102 int indent; 103 char *cp, *vis_env, *vis_args; 104 105 if (cflag) { 106 /* Don't pad the last field. */ 107 if (STAILQ_NEXT(vent, link) == NULL) { 108 if (SHOW_THRNAME(k)) { 109 printf("%s/%s", 110 make_printable(KI_PROC(k, comm)), 111 make_printable2(KI_LWP(k, comm))); 112 } else { 113 printf("%s", make_printable(KI_PROC(k, comm))); 114 } 115 } else { 116 if (SHOW_THRNAME(k)) { 117 printf("%-*s/%s", vent->width, 118 make_printable(KI_PROC(k, comm)), 119 make_printable2(KI_LWP(k, comm))); 120 } else { 121 printf("%-*s", vent->width, 122 make_printable(KI_PROC(k, comm))); 123 } 124 } 125 return; 126 } 127 128 if ((vis_args = malloc(strlen(k->ki_args) * 4 + 1)) == NULL) 129 err(1, NULL); 130 strvis(vis_args, k->ki_args, VIS_TAB | VIS_NL | VIS_NOSLASH); 131 if (k->ki_env) { 132 if ((vis_env = malloc(strlen(k->ki_env) * 4 + 1)) == NULL) 133 err(1, NULL); 134 strvis(vis_env, k->ki_env, VIS_TAB | VIS_NL | VIS_NOSLASH); 135 } else { 136 vis_env = NULL; 137 } 138 139 indent = k->ki_indent; 140 if (indent < 0) 141 indent = 0; 142 143 if (STAILQ_NEXT(vent, link) == NULL) { 144 /* last field */ 145 if (termwidth == UNLIMITED) { 146 if (vis_env) 147 printf("%s ", vis_env); 148 while (indent) { 149 putchar(' '); 150 --indent; 151 } 152 printf("%s", vis_args); 153 } else { 154 left = termwidth - (totwidth - vent->width); 155 if (left < 1) /* already wrapped, just use std width */ 156 left = vent->width; 157 while (indent && left > 1) { 158 putchar(' '); 159 --indent; 160 --left; 161 } 162 if ((cp = vis_env) != NULL) { 163 while (--left >= 0 && *cp) 164 putchar(*cp++); 165 if (--left >= 0) 166 putchar(' '); 167 } 168 for (cp = vis_args; --left >= 0 && *cp != '\0';) 169 putchar(*cp++); 170 } 171 } else 172 /* XXX env? */ 173 printf("%-*.*s", vent->width, vent->width, vis_args); 174 free(vis_args); 175 if (vis_env != NULL) 176 free(vis_env); 177 } 178 179 void 180 ucomm(const KINFO *k, const struct varent *vent) 181 { 182 /* Do not pad the last field */ 183 if (STAILQ_NEXT(vent, link) == NULL) { 184 if (SHOW_THRNAME(k)) { 185 printf("%s/%s", make_printable(KI_PROC(k, comm)), 186 make_printable2(KI_LWP(k, comm))); 187 } else { 188 printf("%s", make_printable(KI_PROC(k, comm))); 189 } 190 } else { 191 if (SHOW_THRNAME(k)) { 192 printf("%-*s/%s", vent->width, 193 make_printable(KI_PROC(k, comm)), 194 make_printable2(KI_LWP(k, comm))); 195 } else { 196 printf("%-*s", vent->width, 197 make_printable(KI_PROC(k, comm))); 198 } 199 } 200 } 201 202 void 203 logname(const KINFO *k, const struct varent *vent) 204 { 205 const char *s = KI_PROC(k, login); 206 207 printf("%-*s", vent->width, *s != '\0' ? s : "-"); 208 } 209 210 void 211 state(const KINFO *k, const struct varent *vent) 212 { 213 int flag; 214 char *cp; 215 char buf[16]; 216 217 flag = KI_PROC(k, flags); 218 cp = buf; 219 220 switch (KI_PROC(k, stat)) { 221 222 case SSTOP: 223 *cp = 'T'; 224 break; 225 226 case SACTIVE: 227 switch (KI_LWP(k, stat)) { 228 case LSSLEEP: 229 if (KI_LWP(k, flags) & LWP_SINTR) { 230 /* interruptable wait short/long */ 231 *cp = KI_LWP(k, slptime) >= MAXSLP ? 'I' : 'S'; 232 } 233 else if (KI_LWP(k, tdflags) & TDF_SINTR) 234 *cp = 'S'; /* interruptable lwkt wait */ 235 else if (KI_PROC(k, paddr)) 236 *cp = 'D'; /* uninterruptable wait */ 237 else 238 *cp = 'B'; /* uninterruptable lwkt wait */ 239 /*break;*/ 240 241 case LSRUN: 242 if (KI_LWP(k, stat) == LSRUN) { 243 *cp = 'R'; 244 if (!(KI_LWP(k, tdflags) & 245 (TDF_RUNNING | TDF_RUNQ))) 246 *++cp = 'Q'; 247 } 248 /*if (KI_LWP(k, tdflags) & (TDF_RUNNING | TDF_RUNQ))*/ { 249 ++cp; 250 sprintf(cp, "%d", KI_LWP(k, cpuid)); 251 while (cp[1]) 252 ++cp; 253 } 254 break; 255 256 case LSSTOP: 257 /* shouldn't happen anyways */ 258 *cp = 'T'; 259 break; 260 } 261 break; 262 263 case SZOMB: 264 *cp = 'Z'; 265 break; 266 267 default: 268 *cp = '?'; 269 } 270 271 cp++; 272 if (flag & P_SWAPPEDOUT) 273 *cp++ = 'W'; 274 if (KI_PROC(k, nice) < NZERO) 275 *cp++ = '<'; 276 else if (KI_PROC(k, nice) > NZERO) 277 *cp++ = 'N'; 278 if (flag & P_TRACED) 279 *cp++ = 'X'; 280 if (flag & P_WEXIT && KI_PROC(k, stat) != SZOMB) 281 *cp++ = 'E'; 282 if (flag & P_PPWAIT) 283 *cp++ = 'V'; 284 #if 0 285 /* removed, no longer interesting */ 286 if ((flag & P_SYSTEM) || KI_PROC(k, lock) > 0) 287 *cp++ = 'L'; 288 #endif 289 if (flag & P_JAILED) 290 *cp++ = 'J'; 291 if (KI_PROC(k, auxflags) & KI_SLEADER) 292 *cp++ = 's'; 293 if ((flag & P_CONTROLT) && KI_PROC(k, pgid) == KI_PROC(k, tpgid)) 294 *cp++ = '+'; 295 *cp = '\0'; 296 printf("%-*s", vent->width, buf); 297 } 298 299 /* 300 * Normalized priority (lower is better). For pure threads 301 * output a negated LWKT priority (so lower still means better). 302 * 303 * XXX bsd4 scheduler specific. 304 */ 305 void 306 pri(const KINFO *k, const struct varent *vent) 307 { 308 if (KI_LWP(k, pid) != -1) 309 printf("%*d", vent->width, KI_LWP(k, prio)); 310 else 311 printf("%*d", vent->width, -(KI_LWP(k, tdprio))); 312 } 313 314 void 315 tdpri(const KINFO *k, const struct varent *vent) 316 { 317 char buf[32]; 318 int val = KI_LWP(k, tdprio); 319 320 snprintf(buf, sizeof(buf), "%2d", val); 321 printf("%*s", vent->width, buf); 322 } 323 324 void 325 uname(const KINFO *k, const struct varent *vent) 326 { 327 printf("%-*s", vent->width, 328 user_from_uid(KI_PROC(k, uid), 0)); 329 } 330 331 int 332 s_uname(const KINFO *k) 333 { 334 return (strlen(user_from_uid(KI_PROC(k, uid), 0))); 335 } 336 337 void 338 runame(const KINFO *k, const struct varent *vent) 339 { 340 printf("%-*s", vent->width, 341 user_from_uid(KI_PROC(k, ruid), 0)); 342 } 343 344 int 345 s_runame(const KINFO *k) 346 { 347 return (strlen(user_from_uid(KI_PROC(k, ruid), 0))); 348 } 349 350 void 351 tdev(const KINFO *k, const struct varent *vent) 352 { 353 dev_t dev; 354 char buff[16]; 355 356 dev = KI_PROC(k, tdev); 357 if (dev == NODEV) 358 printf("%*s", vent->width, "??"); 359 else { 360 snprintf(buff, sizeof(buff), "%d/%d", major(dev), minor(dev)); 361 printf("%*s", vent->width, buff); 362 } 363 } 364 365 void 366 tname(const KINFO *k, const struct varent *vent) 367 { 368 dev_t dev; 369 const char *ttname; 370 371 dev = KI_PROC(k, tdev); 372 if (dev == NODEV || (ttname = devname(dev, S_IFCHR)) == NULL) 373 printf("%*s ", vent->width-1, "??"); 374 else { 375 if (strncmp(ttname, "tty", 3) == 0 || 376 strncmp(ttname, "cua", 3) == 0) 377 ttname += 3; 378 if (strncmp(ttname, "pts/", 4) == 0) 379 ttname += 4; 380 printf("%*.*s%c", vent->width-1, vent->width-1, ttname, 381 KI_PROC(k, auxflags) & KI_CTTY ? ' ' : '-'); 382 } 383 } 384 385 void 386 longtname(const KINFO *k, const struct varent *vent) 387 { 388 dev_t dev; 389 const char *ttname; 390 391 dev = KI_PROC(k, tdev); 392 if (dev == NODEV || (ttname = devname(dev, S_IFCHR)) == NULL) 393 printf("%-*s", vent->width, "??"); 394 else 395 printf("%-*s", vent->width, ttname); 396 } 397 398 void 399 started(const KINFO *k, const struct varent *vent) 400 { 401 static time_t now; 402 time_t then; 403 struct tm *tp; 404 char buf[100]; 405 static int use_ampm = -1; 406 407 if (use_ampm < 0) 408 use_ampm = (*nl_langinfo(T_FMT_AMPM) != '\0'); 409 410 then = KI_PROC(k, start).tv_sec; 411 if (then < btime.tv_sec) { 412 then = btime.tv_sec; 413 } 414 415 tp = localtime(&then); 416 if (!now) 417 time(&now); 418 if (now - then < 24 * 3600) { 419 strftime(buf, sizeof(buf) - 1, 420 use_ampm ? "%l:%M%p" : "%k:%M ", tp); 421 } else if (now - then < 7 * 86400) { 422 strftime(buf, sizeof(buf) - 1, 423 use_ampm ? "%a%I%p" : "%a%H ", tp); 424 } else 425 strftime(buf, sizeof(buf) - 1, "%e%b%y", tp); 426 printf("%-*s", vent->width, buf); 427 } 428 429 void 430 lstarted(const KINFO *k, const struct varent *vent) 431 { 432 time_t then; 433 char buf[100]; 434 435 then = KI_PROC(k, start).tv_sec; 436 strftime(buf, sizeof(buf) -1, "%c", localtime(&then)); 437 printf("%-*s", vent->width, buf); 438 } 439 440 void 441 wchan(const KINFO *k, const struct varent *vent) 442 { 443 if (*KI_LWP(k, wmesg)) { 444 printf("%-*.*s", vent->width, vent->width, 445 KI_LWP(k, wmesg)); 446 } else { 447 printf("%-*s", vent->width, "-"); 448 } 449 } 450 451 static u_int64_t 452 pgtob(u_int64_t pg) 453 { 454 static size_t pgsize; 455 456 if (pgsize == 0) 457 pgsize = getpagesize(); 458 return(pg * pgsize); 459 } 460 461 void 462 vsize(const KINFO *k, const struct varent *vent) 463 { 464 put64((uintmax_t)KI_PROC(k, vm_map_size)/1024, vent->width, 'k'); 465 } 466 467 void 468 rssize(const KINFO *k, const struct varent *vent) 469 { 470 /* XXX don't have info about shared */ 471 put64(pgtob(KI_PROC(k, vm_rssize))/1024, vent->width, 'k'); 472 } 473 474 /* doesn't account for text */ 475 void 476 p_rssize(const KINFO *k, const struct varent *vent) 477 { 478 put64(pgtob(KI_PROC(k, vm_rssize))/1024, vent->width, 'k'); 479 } 480 481 void 482 cputime(const KINFO *k, const struct varent *vent) 483 { 484 long secs; 485 long psecs; /* "parts" of a second. first micro, then centi */ 486 u_int64_t timeus; 487 char obuff[128]; 488 static char decimal_point = '\0'; 489 490 if (decimal_point == '\0') 491 decimal_point = localeconv()->decimal_point[0]; 492 493 /* 494 * This counts time spent handling interrupts. We could 495 * fix this, but it is not 100% trivial (and interrupt 496 * time fractions only work on the sparc anyway). XXX 497 */ 498 timeus = KI_LWP(k, uticks) + KI_LWP(k, sticks) + 499 KI_LWP(k, iticks); 500 secs = timeus / 1000000; 501 psecs = timeus % 1000000; 502 if (sumrusage) { 503 secs += KI_PROC(k, cru).ru_utime.tv_sec + 504 KI_PROC(k, cru).ru_stime.tv_sec; 505 psecs += KI_PROC(k, cru).ru_utime.tv_usec + 506 KI_PROC(k, cru).ru_stime.tv_usec; 507 } 508 /* 509 * round and scale to 100's 510 */ 511 psecs = (psecs + 5000) / 10000; 512 secs += psecs / 100; 513 psecs = psecs % 100; 514 #if 1 515 if (secs >= 86400) { 516 snprintf(obuff, sizeof(obuff), "%3ldd%02ld:%02ld", 517 secs / 86400, secs / (60 * 60) % 24, secs / 60 % 60); 518 } else if (secs >= 100 * 60) { 519 snprintf(obuff, sizeof(obuff), "%2ld:%02ld:%02ld", 520 secs / 60 / 60, secs / 60 % 60, secs % 60); 521 } else 522 #endif 523 { 524 snprintf(obuff, sizeof(obuff), "%3ld:%02ld%c%02ld", 525 secs / 60, secs % 60, 526 decimal_point, psecs); 527 } 528 printf("%*s", vent->width, obuff); 529 } 530 531 double 532 getpcpu(const KINFO *k) 533 { 534 static int failure; 535 536 if (!nlistread) 537 failure = donlist(); 538 if (failure) 539 return (0.0); 540 541 #define fxtofl(fixpt) ((double)(fixpt) / fscale) 542 543 /* XXX - I don't like this */ 544 if (KI_PROC(k, swtime) == 0 || (KI_PROC(k, flags) & P_SWAPPEDOUT)) 545 return (0.0); 546 return (100.0 * fxtofl(KI_LWP(k, pctcpu))); 547 } 548 549 void 550 pcpu(const KINFO *k, const struct varent *vent) 551 { 552 printf("%*.1f", vent->width, getpcpu(k)); 553 } 554 555 void 556 pnice(const KINFO *k, const struct varent *vent) 557 { 558 int niceval; 559 560 switch (KI_LWP(k, rtprio).type) { 561 case RTP_PRIO_REALTIME: 562 niceval = PRIO_MIN - 1 - RTP_PRIO_MAX + KI_LWP(k, rtprio).prio; 563 break; 564 case RTP_PRIO_IDLE: 565 niceval = PRIO_MAX + 1 + KI_LWP(k, rtprio).prio; 566 break; 567 case RTP_PRIO_THREAD: 568 niceval = PRIO_MIN - 1 - RTP_PRIO_MAX - KI_LWP(k, rtprio).prio; 569 break; 570 default: 571 niceval = KI_PROC(k, nice) - NZERO; 572 break; 573 } 574 printf("%*d", vent->width, niceval); 575 } 576 577 578 double 579 getpmem(const KINFO *k) 580 { 581 static int failure; 582 double fracmem; 583 int szptudot; 584 585 if (!nlistread) 586 failure = donlist(); 587 if (failure) 588 return (0.0); 589 590 if (KI_PROC(k, flags) & P_SWAPPEDOUT) 591 return (0.0); 592 /* XXX want pmap ptpages, segtab, etc. (per architecture) */ 593 szptudot = UPAGES; 594 /* XXX don't have info about shared */ 595 fracmem = ((float)KI_PROC(k, vm_rssize) + szptudot)/mempages; 596 return (100.0 * fracmem); 597 } 598 599 void 600 pmem(const KINFO *k, const struct varent *vent) 601 { 602 printf("%*.1f", vent->width, getpmem(k)); 603 } 604 605 void 606 pagein(const KINFO *k, const struct varent *vent) 607 { 608 printf("%*ld", vent->width, KI_LWP(k, ru).ru_majflt); 609 } 610 611 /* ARGSUSED */ 612 void 613 maxrss(const KINFO *k __unused, const struct varent *vent) 614 { 615 printf("%*ld", vent->width, KI_PROC(k, ru).ru_maxrss); 616 } 617 618 void 619 tsize(const KINFO *k, const struct varent *vent) 620 { 621 put64(pgtob(KI_PROC(k, vm_tsize))/1024, vent->width, 'k'); 622 } 623 624 void 625 rtprior(const KINFO *k, const struct varent *vent) 626 { 627 struct rtprio *prtp; 628 char str[8]; 629 unsigned prio, type; 630 631 prtp = &KI_LWP(k, rtprio); 632 prio = prtp->prio; 633 type = prtp->type; 634 switch (type) { 635 case RTP_PRIO_REALTIME: 636 snprintf(str, sizeof(str), "real:%u", prio); 637 break; 638 case RTP_PRIO_NORMAL: 639 strncpy(str, "normal", sizeof(str)); 640 break; 641 case RTP_PRIO_IDLE: 642 snprintf(str, sizeof(str), "idle:%u", prio); 643 break; 644 default: 645 snprintf(str, sizeof(str), "%u:%u", type, prio); 646 break; 647 } 648 str[sizeof(str) - 1] = '\0'; 649 printf("%*s", vent->width, str); 650 } 651 652 /* 653 * Generic output routines. Print fields from various prototype 654 * structures. 655 */ 656 static void 657 printval(const char *bp, const struct varent *vent) 658 { 659 static char ofmt[32] = "%"; 660 const char *fcp; 661 char *cp; 662 663 cp = ofmt + 1; 664 fcp = vent->var->fmt; 665 if (vent->var->flag & LJUST) 666 *cp++ = '-'; 667 *cp++ = '*'; 668 while ((*cp++ = *fcp++)); 669 670 switch (vent->var->type) { 671 case CHAR: 672 printf(ofmt, vent->width, *(const char *)bp); 673 break; 674 case UCHAR: 675 printf(ofmt, vent->width, *(const u_char *)bp); 676 break; 677 case SHORT: 678 printf(ofmt, vent->width, *(const short *)bp); 679 break; 680 case USHORT: 681 printf(ofmt, vent->width, *(const u_short *)bp); 682 break; 683 case INT: 684 printf(ofmt, vent->width, *(const int *)bp); 685 break; 686 case UINT: 687 printf(ofmt, vent->width, *(const u_int *)bp); 688 break; 689 case LONG: 690 printf(ofmt, vent->width, *(const long *)bp); 691 break; 692 case ULONG: 693 printf(ofmt, vent->width, *(const u_long *)bp); 694 break; 695 case KPTR: 696 printf(ofmt, vent->width, *(const u_long *)bp); 697 break; 698 default: 699 errx(1, "unknown type %d", vent->var->type); 700 } 701 } 702 703 void 704 pvar(const KINFO *k, const struct varent *vent) 705 { 706 printval((char *)((char *)k->ki_proc + vent->var->off), vent); 707 } 708 709 void 710 lpest(const KINFO *k, const struct varent *vent) 711 { 712 int val; 713 714 val = *(int *)((char *)&k->ki_proc->kp_lwp + vent->var->off); 715 val = val / 128; 716 printval((char *)&val, vent); 717 } 718 719 720 void 721 lpvar(const KINFO *k, const struct varent *vent) 722 { 723 printval((char *)((char *)&k->ki_proc->kp_lwp + vent->var->off), vent); 724 } 725 726 void 727 rvar(const KINFO *k, const struct varent *vent) 728 { 729 printval(((const char *)&KI_LWP(k, ru) + vent->var->off), vent); 730 } 731 732 static const char * 733 make_printable(const char *str) 734 { 735 static char *cpy; 736 int len; 737 738 if (cpy) 739 free(cpy); 740 len = strlen(str); 741 if ((cpy = malloc(len * 4 + 1)) == NULL) 742 err(1, NULL); 743 strvis(cpy, str, VIS_TAB | VIS_NL | VIS_NOSLASH); 744 return(cpy); 745 } 746 747 static const char * 748 make_printable2(const char *str) 749 { 750 static char *cpy2; 751 int len; 752 753 if (cpy2) 754 free(cpy2); 755 len = strlen(str); 756 if ((cpy2 = malloc(len * 4 + 1)) == NULL) 757 err(1, NULL); 758 strvis(cpy2, str, VIS_TAB | VIS_NL | VIS_NOSLASH); 759 return(cpy2); 760 } 761 762 /* 763 * Output a number, divide down as needed to fit within the 764 * field. This function differs from the code used by systat 765 * in that it tries to differentiate the display by always 766 * using a decimal point for excessively large numbers so 767 * the human eye naturally notices the difference. 768 */ 769 static void 770 put64(u_int64_t n, int w, int type) 771 { 772 char b[128]; 773 u_int64_t d; 774 u_int64_t u; 775 size_t len; 776 int ntype; 777 778 snprintf(b, sizeof(b), "%*jd", w, (uintmax_t)n); 779 len = strlen(b); 780 if (len <= (size_t)w) { 781 fwrite(b, len, 1, stdout); 782 return; 783 } 784 785 if (type == 'D') 786 u = 1000; 787 else 788 u = 1024; 789 790 ntype = 0; 791 for (d = 1; n / d >= 100000; d *= u) { 792 switch(type) { 793 case 'D': 794 case 0: 795 type = 'k'; 796 ntype = 'M'; 797 break; 798 case 'k': 799 type = 'M'; 800 ntype = 'G'; 801 break; 802 case 'M': 803 type = 'G'; 804 ntype = 'T'; 805 break; 806 case 'G': 807 type = 'T'; 808 ntype = 'X'; 809 break; 810 case 'T': 811 type = 'X'; 812 ntype = '?'; 813 break; 814 default: 815 type = '?'; 816 break; 817 } 818 } 819 if (w > 4 && n / d >= u) { 820 snprintf(b, sizeof(b), "%*ju.%02u%c", 821 w - 4, 822 (uintmax_t)(n / (d * u)), 823 (u_int)(n / (d * u / 100) % 100), 824 ntype); 825 } else { 826 snprintf(b, sizeof(b), "%*jd%c", 827 w - 1, (uintmax_t)n / d, type); 828 } 829 len = strlen(b); 830 fwrite(b, len, 1, stdout); 831 } 832