ps.c revision 1.86
1 /* $NetBSD: ps.c,v 1.86 2016/11/28 08:21:10 rin Exp $ */ 2 3 /* 4 * Copyright (c) 2000-2008 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 __COPYRIGHT("@(#) Copyright (c) 1990, 1993, 1994\ 64 The Regents of the University of California. All rights reserved."); 65 #endif /* not lint */ 66 67 #ifndef lint 68 #if 0 69 static char sccsid[] = "@(#)ps.c 8.4 (Berkeley) 4/2/94"; 70 #else 71 __RCSID("$NetBSD: ps.c,v 1.86 2016/11/28 08:21:10 rin Exp $"); 72 #endif 73 #endif /* not lint */ 74 75 #include <sys/param.h> 76 #include <sys/time.h> 77 #include <sys/resource.h> 78 #include <sys/lwp.h> 79 #include <sys/proc.h> 80 #include <sys/stat.h> 81 #include <sys/ioctl.h> 82 #include <sys/sysctl.h> 83 84 #include <stddef.h> 85 #include <ctype.h> 86 #include <err.h> 87 #include <errno.h> 88 #include <fcntl.h> 89 #include <kvm.h> 90 #include <limits.h> 91 #include <locale.h> 92 #include <math.h> 93 #include <nlist.h> 94 #include <paths.h> 95 #include <pwd.h> 96 #include <stdio.h> 97 #include <stdlib.h> 98 #include <string.h> 99 #include <unistd.h> 100 101 #include "ps.h" 102 103 /* 104 * ARGOPTS must contain all option characters that take arguments 105 * (except for 't'!) - it is used in kludge_oldps_options() 106 */ 107 #define GETOPTSTR "aAcCeghjk:LlM:mN:O:o:p:rSsTt:U:uvW:wx" 108 #define ARGOPTS "kMNOopUW" 109 110 struct varlist displaylist = SIMPLEQ_HEAD_INITIALIZER(displaylist); 111 struct varlist sortlist = SIMPLEQ_HEAD_INITIALIZER(sortlist); 112 113 int eval; /* exit value */ 114 int sumrusage; /* -S */ 115 int termwidth; /* width of screen (0 == infinity) */ 116 int totwidth; /* calculated width of requested variables */ 117 118 int needcomm, needenv, commandonly; 119 uid_t myuid; 120 121 static struct kinfo_lwp 122 *pick_representative_lwp(struct kinfo_proc2 *, 123 struct kinfo_lwp *, int); 124 static struct kinfo_proc2 125 *getkinfo_kvm(kvm_t *, int, int, int *); 126 static struct pinfo 127 *setpinfo(struct kinfo_proc2 *, int, int, int); 128 static char *kludge_oldps_options(char *); 129 static int pscomp(const void *, const void *); 130 static void scanvars(void); 131 __dead static void usage(void); 132 static int parsenum(const char *, const char *); 133 134 char dfmt[] = "pid tt state time command"; 135 char jfmt[] = "user pid ppid pgid sess jobc state tt time command"; 136 char lfmt[] = "uid pid ppid cpu pri nice vsz rss wchan state tt time command"; 137 char sfmt[] = "uid pid ppid cpu lid nlwp pri nice vsz rss wchan lstate tt " 138 "ltime command"; 139 char ufmt[] = "user pid %cpu %mem vsz rss tt state start time command"; 140 char vfmt[] = "pid state time sl re pagein vsz rss lim tsiz %cpu %mem command"; 141 142 const char *default_fmt = dfmt; 143 144 struct varent *Opos = NULL; /* -O flag inserts after this point */ 145 146 kvm_t *kd; 147 148 static long long 149 ttyname2dev(const char *ttname, int *xflg, int *what) 150 { 151 struct stat sb; 152 const char *ttypath; 153 char pathbuf[MAXPATHLEN]; 154 155 ttypath = NULL; 156 if (strcmp(ttname, "?") == 0) { 157 *xflg = 1; 158 return KERN_PROC_TTY_NODEV; 159 } 160 if (strcmp(ttname, "-") == 0) 161 return KERN_PROC_TTY_REVOKE; 162 163 if (strcmp(ttname, "co") == 0) 164 ttypath = _PATH_CONSOLE; 165 else if (strncmp(ttname, "pts/", 4) == 0 || 166 strncmp(ttname, "tty", 3) == 0) { 167 (void)snprintf(pathbuf, 168 sizeof(pathbuf), "%s%s", _PATH_DEV, ttname); 169 ttypath = pathbuf; 170 } else if (*ttname != '/') { 171 (void)snprintf(pathbuf, 172 sizeof(pathbuf), "%s%s", _PATH_TTY, ttname); 173 ttypath = pathbuf; 174 } else 175 ttypath = ttname; 176 *what = KERN_PROC_TTY; 177 if (stat(ttypath, &sb) == -1) { 178 devmajor_t pts; 179 int serrno; 180 181 serrno = errno; 182 pts = getdevmajor("pts", S_IFCHR); 183 if (pts != NODEVMAJOR && strncmp(ttname, "pts/", 4) == 0) { 184 int ptsminor = atoi(ttname + 4); 185 186 snprintf(pathbuf, sizeof(pathbuf), "pts/%d", ptsminor); 187 if (strcmp(pathbuf, ttname) == 0 && ptsminor >= 0) 188 return makedev(pts, ptsminor); 189 } 190 errno = serrno; 191 err(1, "%s", ttypath); 192 } 193 if (!S_ISCHR(sb.st_mode)) 194 errx(1, "%s: not a terminal", ttypath); 195 return sb.st_rdev; 196 } 197 198 int 199 main(int argc, char *argv[]) 200 { 201 struct kinfo_proc2 *kinfo; 202 struct pinfo *pinfo; 203 struct varent *vent; 204 struct winsize ws; 205 struct kinfo_lwp *kl, *l; 206 int ch, i, j, fmt, lineno, nentries, nlwps; 207 long long flag; 208 int calc_pcpu, prtheader, wflag, what, xflg, rawcpu, showlwps; 209 char *nlistf, *memf, *swapf, errbuf[_POSIX2_LINE_MAX]; 210 char *ttname; 211 212 setprogname(argv[0]); 213 (void)setlocale(LC_ALL, ""); 214 215 if ((ioctl(STDOUT_FILENO, TIOCGWINSZ, (char *)&ws) == -1 && 216 ioctl(STDERR_FILENO, TIOCGWINSZ, (char *)&ws) == -1 && 217 ioctl(STDIN_FILENO, TIOCGWINSZ, (char *)&ws) == -1) || 218 ws.ws_col == 0) 219 termwidth = 79; 220 else 221 termwidth = ws.ws_col - 1; 222 223 if (argc > 1) 224 argv[1] = kludge_oldps_options(argv[1]); 225 226 fmt = prtheader = wflag = xflg = showlwps = 0; 227 what = KERN_PROC_UID; 228 flag = myuid = getuid(); 229 memf = nlistf = swapf = NULL; 230 231 while ((ch = getopt(argc, argv, GETOPTSTR)) != -1) 232 switch((char)ch) { 233 case 'A': 234 /* "-A" shows all processes, like "-ax" */ 235 xflg = 1; 236 /*FALLTHROUGH*/ 237 case 'a': 238 what = KERN_PROC_ALL; 239 flag = 0; 240 break; 241 case 'c': 242 commandonly = 1; 243 break; 244 case 'e': /* XXX set ufmt */ 245 needenv = 1; 246 break; 247 case 'C': 248 rawcpu = 1; 249 break; 250 case 'g': 251 break; /* no-op */ 252 case 'h': 253 prtheader = ws.ws_row > 5 ? ws.ws_row : 22; 254 break; 255 case 'j': 256 parsefmt(jfmt); 257 fmt = 1; 258 jfmt[0] = '\0'; 259 break; 260 case 'k': 261 parsesort(optarg); 262 break; 263 case 'K': 264 break; /* no-op - was dontuseprocfs */ 265 case 'L': 266 showkey(); 267 return 0; 268 case 'l': 269 parsefmt(lfmt); 270 fmt = 1; 271 lfmt[0] = '\0'; 272 break; 273 case 'M': 274 memf = optarg; 275 break; 276 case 'm': 277 parsesort("vsz"); 278 break; 279 case 'N': 280 nlistf = optarg; 281 break; 282 case 'O': 283 /* 284 * If this is not the first -O option, insert 285 * just after the previous one. 286 * 287 * If there is no format yet, start with the default 288 * format, and insert after the pid column. 289 * 290 * If there is already a format, insert after 291 * the pid column, or at the end if there's no 292 * pid column. 293 */ 294 if (!Opos) { 295 if (!fmt) 296 parsefmt(default_fmt); 297 Opos = varlist_find(&displaylist, "pid"); 298 } 299 parsefmt_insert(optarg, &Opos); 300 fmt = 1; 301 break; 302 case 'o': 303 parsefmt(optarg); 304 fmt = 1; 305 break; 306 case 'p': 307 what = KERN_PROC_PID; 308 flag = parsenum(optarg, "process id"); 309 xflg = 1; 310 break; 311 case 'r': 312 parsesort("%cpu"); 313 break; 314 case 'S': 315 sumrusage = 1; 316 break; 317 case 's': 318 /* -L was already taken... */ 319 showlwps = 1; 320 default_fmt = sfmt; 321 break; 322 case 'T': 323 if ((ttname = ttyname(STDIN_FILENO)) == NULL) 324 errx(1, "stdin: not a terminal"); 325 flag = ttyname2dev(ttname, &xflg, &what); 326 break; 327 case 't': 328 flag = ttyname2dev(optarg, &xflg, &what); 329 break; 330 case 'U': 331 if (*optarg != '\0') { 332 struct passwd *pw; 333 334 what = KERN_PROC_UID; 335 pw = getpwnam(optarg); 336 if (pw == NULL) { 337 flag = parsenum(optarg, "user name"); 338 } else 339 flag = pw->pw_uid; 340 } 341 break; 342 case 'u': 343 parsefmt(ufmt); 344 parsesort("%cpu"); 345 fmt = 1; 346 ufmt[0] = '\0'; 347 break; 348 case 'v': 349 parsefmt(vfmt); 350 parsesort("vsz"); 351 fmt = 1; 352 vfmt[0] = '\0'; 353 break; 354 case 'W': 355 swapf = optarg; 356 break; 357 case 'w': 358 if (wflag) 359 termwidth = UNLIMITED; 360 else if (termwidth < 131) 361 termwidth = 131; 362 wflag++; 363 break; 364 case 'x': 365 xflg = 1; 366 break; 367 case '?': 368 default: 369 usage(); 370 } 371 argc -= optind; 372 argv += optind; 373 374 #define BACKWARD_COMPATIBILITY 375 #ifdef BACKWARD_COMPATIBILITY 376 if (*argv) { 377 nlistf = *argv; 378 if (*++argv) { 379 memf = *argv; 380 if (*++argv) 381 swapf = *argv; 382 } 383 } 384 #endif 385 386 if (memf == NULL) { 387 kd = kvm_openfiles(NULL, NULL, NULL, KVM_NO_FILES, errbuf); 388 donlist_sysctl(); 389 } else 390 kd = kvm_openfiles(nlistf, memf, swapf, O_RDONLY, errbuf); 391 392 if (kd == NULL) 393 errx(1, "%s", errbuf); 394 395 if (!fmt) 396 parsefmt(default_fmt); 397 398 /* Add default sort criteria */ 399 parsesort("tdev,pid"); 400 calc_pcpu = 0; 401 SIMPLEQ_FOREACH(vent, &sortlist, next) { 402 if (vent->var->flag & LWP || vent->var->type == UNSPECIFIED) 403 warnx("Cannot sort on %s, sort key ignored", 404 vent->var->name); 405 if (vent->var->type == PCPU) 406 calc_pcpu = 1; 407 } 408 if (!calc_pcpu) 409 SIMPLEQ_FOREACH(vent, &displaylist, next) 410 if (vent->var->type == PCPU) { 411 calc_pcpu = 1; 412 break; 413 } 414 415 /* 416 * scan requested variables, noting what structures are needed. 417 */ 418 scanvars(); 419 420 /* 421 * select procs 422 */ 423 if (!(kinfo = getkinfo_kvm(kd, what, flag, &nentries))) 424 err(1, "%s", kvm_geterr(kd)); 425 if (nentries == 0) { 426 printheader(); 427 return 1; 428 } 429 pinfo = setpinfo(kinfo, nentries, calc_pcpu, rawcpu); 430 431 /* 432 * sort proc list 433 */ 434 qsort(pinfo, nentries, sizeof(struct pinfo), pscomp); 435 /* 436 * For each proc, call each variable output function in 437 * "setwidth" mode to determine the widest element of 438 * the column. 439 */ 440 441 for (i = 0; i < nentries; i++) { 442 struct pinfo *pi = &pinfo[i]; 443 struct kinfo_proc2 *ki = pi->ki; 444 445 if (xflg == 0 && (ki->p_tdev == (uint32_t)NODEV || 446 (ki->p_flag & P_CONTROLT) == 0)) 447 continue; 448 449 kl = kvm_getlwps(kd, ki->p_pid, ki->p_paddr, 450 sizeof(struct kinfo_lwp), &nlwps); 451 if (kl == 0) 452 nlwps = 0; 453 if (showlwps == 0) { 454 l = pick_representative_lwp(ki, kl, nlwps); 455 SIMPLEQ_FOREACH(vent, &displaylist, next) 456 OUTPUT(vent, l, pi, ki, WIDTHMODE); 457 } else { 458 /* The printing is done with the loops 459 * reversed, but here we don't need that, 460 * and this improves the code locality a bit. 461 */ 462 SIMPLEQ_FOREACH(vent, &displaylist, next) 463 for (j = 0; j < nlwps; j++) 464 OUTPUT(vent, &kl[j], pi, ki, WIDTHMODE); 465 } 466 } 467 /* 468 * Print header - AFTER determining process field widths. 469 * printheader() also adds up the total width of all 470 * fields the first time it's called. 471 */ 472 printheader(); 473 /* 474 * For each proc, call each variable output function in 475 * print mode. 476 */ 477 for (i = lineno = 0; i < nentries; i++) { 478 struct pinfo *pi = &pinfo[i]; 479 struct kinfo_proc2 *ki = pi->ki; 480 481 if (xflg == 0 && (ki->p_tdev == (uint32_t)NODEV || 482 (ki->p_flag & P_CONTROLT ) == 0)) 483 continue; 484 kl = kvm_getlwps(kd, ki->p_pid, (u_long)ki->p_paddr, 485 sizeof(struct kinfo_lwp), &nlwps); 486 if (kl == 0) 487 nlwps = 0; 488 if (showlwps == 0) { 489 l = pick_representative_lwp(ki, kl, nlwps); 490 SIMPLEQ_FOREACH(vent, &displaylist, next) { 491 OUTPUT(vent, l, pi, ki, PRINTMODE); 492 if (SIMPLEQ_NEXT(vent, next) != NULL) 493 (void)putchar(' '); 494 } 495 (void)putchar('\n'); 496 if (prtheader && lineno++ == prtheader - 4) { 497 (void)putchar('\n'); 498 printheader(); 499 lineno = 0; 500 } 501 } else { 502 for (j = 0; j < nlwps; j++) { 503 SIMPLEQ_FOREACH(vent, &displaylist, next) { 504 OUTPUT(vent, &kl[j], pi, ki, PRINTMODE); 505 if (SIMPLEQ_NEXT(vent, next) != NULL) 506 (void)putchar(' '); 507 } 508 (void)putchar('\n'); 509 if (prtheader && lineno++ == prtheader - 4) { 510 (void)putchar('\n'); 511 printheader(); 512 lineno = 0; 513 } 514 } 515 } 516 } 517 return eval; 518 } 519 520 static struct kinfo_lwp * 521 pick_representative_lwp(struct kinfo_proc2 *ki, struct kinfo_lwp *kl, int nlwps) 522 { 523 int i, onproc, running, sleeping, stopped, suspended; 524 static struct kinfo_lwp zero_lwp; 525 526 if (kl == 0) 527 return &zero_lwp; 528 529 /* Trivial case: only one LWP */ 530 if (nlwps == 1) 531 return kl; 532 533 switch (ki->p_realstat) { 534 case SSTOP: 535 case SACTIVE: 536 /* Pick the most live LWP */ 537 onproc = running = sleeping = stopped = suspended = -1; 538 for (i = 0; i < nlwps; i++) { 539 switch (kl[i].l_stat) { 540 case LSONPROC: 541 onproc = i; 542 break; 543 case LSRUN: 544 running = i; 545 break; 546 case LSSLEEP: 547 sleeping = i; 548 break; 549 case LSSTOP: 550 stopped = i; 551 break; 552 case LSSUSPENDED: 553 suspended = i; 554 break; 555 } 556 } 557 if (onproc != -1) 558 return &kl[onproc]; 559 if (running != -1) 560 return &kl[running]; 561 if (sleeping != -1) 562 return &kl[sleeping]; 563 if (stopped != -1) 564 return &kl[stopped]; 565 if (suspended != -1) 566 return &kl[suspended]; 567 break; 568 case SZOMB: 569 /* First will do */ 570 return kl; 571 break; 572 } 573 /* Error condition! */ 574 warnx("Inconsistent LWP state for process %d", ki->p_pid); 575 return kl; 576 } 577 578 static struct kinfo_proc2 * 579 getkinfo_kvm(kvm_t *kdp, int what, int flag, int *nentriesp) 580 { 581 582 return (kvm_getproc2(kdp, what, flag, sizeof(struct kinfo_proc2), 583 nentriesp)); 584 } 585 586 static struct pinfo * 587 setpinfo(struct kinfo_proc2 *ki, int nentries, int calc_pcpu, int rawcpu) 588 { 589 struct pinfo *pi; 590 int i; 591 592 pi = malloc(nentries * sizeof(struct pinfo)); 593 if (pi == NULL) 594 err(1, "malloc"); 595 596 if (calc_pcpu && !nlistread) 597 donlist(); 598 599 for (i = 0; i < nentries; i++) { 600 pi[i].ki = &ki[i]; 601 if (!calc_pcpu) 602 continue; 603 if (ki[i].p_realstat == SZOMB || 604 (!rawcpu && ki[i].p_swtime == 0)) { 605 pi[i].pcpu = 0.0; 606 continue; 607 } 608 pi[i].pcpu = 100.0 * (double)ki[i].p_pctcpu / fscale; 609 if (!rawcpu) 610 pi[i].pcpu /= 1.0 - exp(ki[i].p_swtime * log_ccpu); 611 } 612 613 return pi; 614 } 615 616 static void 617 scanvars(void) 618 { 619 struct varent *vent; 620 VAR *v; 621 622 SIMPLEQ_FOREACH(vent, &displaylist, next) { 623 v = vent->var; 624 if (v->flag & COMM) { 625 needcomm = 1; 626 break; 627 } 628 } 629 } 630 631 static int 632 pscomp(const void *a, const void *b) 633 { 634 const struct pinfo *pa = (const struct pinfo *)a; 635 const struct pinfo *pb = (const struct pinfo *)b; 636 const struct kinfo_proc2 *ka = pa->ki; 637 const struct kinfo_proc2 *kb = pb->ki; 638 639 int i; 640 int64_t i64; 641 VAR *v; 642 struct varent *ve; 643 const sigset_t *sa, *sb; 644 645 #define V_SIZE(k) ((k)->p_vm_msize) 646 #define RDIFF_N(t, n) \ 647 if (((const t *)((const char *)ka + v->off))[n] > ((const t *)((const char *)kb + v->off))[n]) \ 648 return 1; \ 649 if (((const t *)((const char *)ka + v->off))[n] < ((const t *)((const char *)kb + v->off))[n]) \ 650 return -1; 651 652 #define RDIFF(type) RDIFF_N(type, 0); continue 653 654 SIMPLEQ_FOREACH(ve, &sortlist, next) { 655 v = ve->var; 656 if (v->flag & LWP) 657 /* LWP structure not available (yet) */ 658 continue; 659 /* Sort on pvar() fields, + a few others */ 660 switch (v->type) { 661 case CHAR: 662 RDIFF(char); 663 case UCHAR: 664 RDIFF(u_char); 665 case SHORT: 666 RDIFF(short); 667 case USHORT: 668 RDIFF(ushort); 669 case INT: 670 RDIFF(int); 671 case UINT: 672 RDIFF(uint); 673 case LONG: 674 RDIFF(long); 675 case ULONG: 676 RDIFF(ulong); 677 case INT32: 678 RDIFF(int32_t); 679 case UINT32: 680 RDIFF(uint32_t); 681 case SIGLIST: 682 sa = (const void *)((const char *)ka + v->off); 683 sb = (const void *)((const char *)kb + v->off); 684 i = 0; 685 do { 686 if (sa->__bits[i] > sb->__bits[i]) 687 return 1; 688 if (sa->__bits[i] < sb->__bits[i]) 689 return -1; 690 i++; 691 } while (i < (int)__arraycount(sa->__bits)); 692 continue; 693 case INT64: 694 RDIFF(int64_t); 695 case KPTR: 696 case KPTR24: 697 case UINT64: 698 RDIFF(uint64_t); 699 case TIMEVAL: 700 /* compare xxx_sec then xxx_usec */ 701 RDIFF_N(uint32_t, 0); 702 RDIFF_N(uint32_t, 1); 703 continue; 704 case CPUTIME: 705 i64 = ka->p_rtime_sec * 1000000 + ka->p_rtime_usec; 706 i64 -= kb->p_rtime_sec * 1000000 + kb->p_rtime_usec; 707 if (sumrusage) { 708 i64 += ka->p_uctime_sec * 1000000 709 + ka->p_uctime_usec; 710 i64 -= kb->p_uctime_sec * 1000000 711 + kb->p_uctime_usec; 712 } 713 if (i64 != 0) 714 return i64 > 0 ? 1 : -1; 715 continue; 716 case PCPU: 717 i = pb->pcpu - pa->pcpu; 718 if (i != 0) 719 return i; 720 continue; 721 case VSIZE: 722 i = V_SIZE(kb) - V_SIZE(ka); 723 if (i != 0) 724 return i; 725 continue; 726 727 default: 728 /* Ignore everything else */ 729 break; 730 } 731 } 732 return 0; 733 734 #undef VSIZE 735 } 736 737 /* 738 * ICK (all for getopt), would rather hide the ugliness 739 * here than taint the main code. 740 * 741 * ps foo -> ps -foo 742 * ps 34 -> ps -p34 743 * 744 * The old convention that 't' with no trailing tty arg means the user's 745 * tty, is only supported if argv[1] doesn't begin with a '-'. This same 746 * feature is available with the option 'T', which takes no argument. 747 */ 748 static char * 749 kludge_oldps_options(char *s) 750 { 751 size_t len; 752 char *newopts, *ns, *cp; 753 754 len = strlen(s); 755 if ((newopts = ns = malloc(len + 3)) == NULL) 756 err(1, NULL); 757 /* 758 * options begin with '-' 759 */ 760 if (*s != '-') 761 *ns++ = '-'; /* add option flag */ 762 /* 763 * gaze to end of argv[1] 764 */ 765 cp = s + len - 1; 766 /* 767 * if the last letter is a 't' flag and there are no other option 768 * characters that take arguments (eg U, p, o) in the option 769 * string and the option string doesn't start with a '-' then 770 * convert to 'T' (meaning *this* terminal, i.e. ttyname(0)). 771 */ 772 if (*cp == 't' && *s != '-' && strpbrk(s, ARGOPTS) == NULL) 773 *cp = 'T'; 774 else { 775 /* 776 * otherwise check for trailing number, which *may* be a 777 * pid. 778 */ 779 while (cp >= s && isdigit((unsigned char)*cp)) 780 --cp; 781 } 782 cp++; 783 memmove(ns, s, (size_t)(cp - s)); /* copy up to trailing number */ 784 ns += cp - s; 785 /* 786 * if there's a trailing number, and not a preceding 'p' (pid) or 787 * 't' (tty) flag, then assume it's a pid and insert a 'p' flag. 788 */ 789 if (isdigit((unsigned char)*cp) && 790 (cp == s || (cp[-1] != 'U' && cp[-1] != 't' && cp[-1] != 'p' && 791 cp[-1] != '/' && (cp - 1 == s || cp[-2] != 't')))) 792 *ns++ = 'p'; 793 /* and append the number */ 794 (void)strcpy(ns, cp); /* XXX strcpy is safe here */ 795 796 return (newopts); 797 } 798 799 static int 800 parsenum(const char *str, const char *msg) 801 { 802 char *ep; 803 unsigned long ul; 804 805 ul = strtoul(str, &ep, 0); 806 807 if (*str == '\0' || *ep != '\0') 808 errx(1, "Invalid %s: `%s'", msg, str); 809 810 if (ul > INT_MAX) 811 errx(1, "Out of range %s: `%s'", msg, str); 812 813 return (int)ul; 814 } 815 816 static void 817 usage(void) 818 { 819 820 (void)fprintf(stderr, 821 "usage:\t%s\n\t %s\n\t%s\n", 822 "ps [-AaCcehjlmrSsTuvwx] [-k key] [-M core] [-N system] [-O fmt]", 823 "[-o fmt] [-p pid] [-t tty] [-U user] [-W swap]", 824 "ps -L"); 825 exit(1); 826 /* NOTREACHED */ 827 } 828
Indexes created Wed Sep 24 05:09:52 GMT 2025