ps.c revision 127546
1243750Srwatson/*- 2156283Srwatson * Copyright (c) 1990, 1993, 1994 3156283Srwatson * The Regents of the University of California. All rights reserved. 4243750Srwatson * 5243750Srwatson * Redistribution and use in source and binary forms, with or without 6156283Srwatson * modification, are permitted provided that the following conditions 7156283Srwatson * are met: 8156283Srwatson * 1. Redistributions of source code must retain the above copyright 9156283Srwatson * notice, this list of conditions and the following disclaimer. 10156283Srwatson * 2. Redistributions in binary form must reproduce the above copyright 11156283Srwatson * notice, this list of conditions and the following disclaimer in the 12156283Srwatson * documentation and/or other materials provided with the distribution. 13156283Srwatson * 3. All advertising materials mentioning features or use of this software 14156283Srwatson * must display the following acknowledgement: 15156283Srwatson * This product includes software developed by the University of 16156283Srwatson * California, Berkeley and its contributors. 17243750Srwatson * 4. Neither the name of the University nor the names of its contributors 18243750Srwatson * may be used to endorse or promote products derived from this software 19243750Srwatson * without specific prior written permission. 20243750Srwatson * 21243750Srwatson * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22243750Srwatson * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23243750Srwatson * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24243750Srwatson * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25243750Srwatson * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26243750Srwatson * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27243750Srwatson * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28243750Srwatson * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29243750Srwatson * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30243750Srwatson * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31243750Srwatson * SUCH DAMAGE. 32243750Srwatson * ------+---------+---------+-------- + --------+---------+---------+---------* 33243750Srwatson * Copyright (c) 2004 - Garance Alistair Drosehn <gad@FreeBSD.org>. 34156283Srwatson * All rights reserved. 35243750Srwatson * 36156283Srwatson * Significant modifications made to bring `ps' options somewhat closer 37243750Srwatson * to the standard for `ps' as described in SingleUnixSpec-v3. 38156283Srwatson * ------+---------+---------+-------- + --------+---------+---------+---------* 39156283Srwatson */ 40156283Srwatson 41156283Srwatson#ifndef lint 42156283Srwatsonstatic const char copyright[] = 43156283Srwatson"@(#) Copyright (c) 1990, 1993, 1994\n\ 44156283Srwatson The Regents of the University of California. All rights reserved.\n"; 45156283Srwatson#endif /* not lint */ 46156283Srwatson 47156283Srwatson#if 0 48156283Srwatson#ifndef lint 49156283Srwatsonstatic char sccsid[] = "@(#)ps.c 8.4 (Berkeley) 4/2/94"; 50156283Srwatson#endif /* not lint */ 51156283Srwatson#endif 52186647Srwatson 53186647Srwatson#include <sys/cdefs.h> 54186647Srwatson__FBSDID("$FreeBSD: head/bin/ps/ps.c 127546 2004-03-29 01:27:13Z gad $"); 55173143Srwatson 56156283Srwatson#include <sys/param.h> 57243750Srwatson#include <sys/proc.h> 58243750Srwatson#include <sys/user.h> 59243750Srwatson#include <sys/stat.h> 60243750Srwatson#include <sys/ioctl.h> 61243750Srwatson#include <sys/sysctl.h> 62293161Sbrueffer 63293161Sbrueffer#include <ctype.h> 64293161Sbrueffer#include <err.h> 65156283Srwatson#include <errno.h> 66156283Srwatson#include <fcntl.h> 67156283Srwatson#include <grp.h> 68156283Srwatson#include <kvm.h> 69156283Srwatson#include <limits.h> 70173143Srwatson#include <locale.h> 71156283Srwatson#include <paths.h> 72156283Srwatson#include <pwd.h> 73156283Srwatson#include <stdint.h> 74243750Srwatson#include <stdio.h> 75156283Srwatson#include <stdlib.h> 76156283Srwatson#include <string.h> 77156283Srwatson#include <unistd.h> 78156283Srwatson 79173143Srwatson#include "ps.h" 80173143Srwatson 81173143Srwatson#define W_SEP " \t" /* "Whitespace" list separators */ 82173143Srwatson#define T_SEP "," /* "Terminate-element" list separators */ 83173143Srwatson 84243750Srwatson#ifdef LAZY_PS 85243750Srwatson#define DEF_UREAD 0; 86243750Srwatson#define OPT_LAZY_f "f" 87243750Srwatson#else 88243750Srwatson#define DEF_UREAD 1; /* Always do the more-expensive read. */ 89173143Srwatson#define OPT_LAZY_f /* I.e., the `-f' option is not added. */ 90173143Srwatson#endif 91243750Srwatson 92243750Srwatsonint cflag; /* -c */ 93243750Srwatsonint eval; /* Exit value */ 94156283Srwatsontime_t now; /* Current time(3) value */ 95156283Srwatsonint rawcpu; /* -C */ 96243750Srwatsonint sumrusage; /* -S */ 97186647Srwatsonint termwidth; /* Width of the screen (0 == infinity). */ 98156283Srwatsonint totwidth; /* Calculated-width of requested variables. */ 99156283Srwatson 100156283Srwatsonstruct varent *vhead; 101156283Srwatson 102243750Srwatsonstatic int forceuread = DEF_UREAD; /* Do extra work to get u-area. */ 103243750Srwatsonstatic kvm_t *kd; 104243750Srwatsonstatic KINFO *kinfo; 105243750Srwatsonstatic int needcomm; /* -o "command" */ 106243750Srwatsonstatic int needenv; /* -e */ 107243750Srwatsonstatic int needuser; /* -o "user" */ 108243750Srwatsonstatic int optfatal; /* Fatal error parsing some list-option. */ 109243750Srwatson 110243750Srwatsonstatic enum sort { DEFAULT, SORTMEM, SORTCPU } sortby = DEFAULT; 111243750Srwatson 112243750Srwatsonstruct listinfo; 113243750Srwatsontypedef int addelem_rtn(struct listinfo *_inf, const char *_elem); 114243750Srwatson 115243750Srwatsonstruct listinfo { 116243750Srwatson int count; 117243750Srwatson int maxcount; 118243750Srwatson int elemsize; 119243750Srwatson addelem_rtn *addelem; 120243750Srwatson const char *lname; 121243750Srwatson union { 122243750Srwatson gid_t *gids; 123243750Srwatson pid_t *pids; 124243750Srwatson dev_t *ttys; 125243750Srwatson uid_t *uids; 126243750Srwatson void *ptr; 127243750Srwatson }; 128243750Srwatson}; 129243750Srwatson 130243750Srwatsonstatic int addelem_gid(struct listinfo *, const char *); 131243750Srwatsonstatic int addelem_pid(struct listinfo *, const char *); 132243750Srwatsonstatic int addelem_tty(struct listinfo *, const char *); 133156283Srwatsonstatic int addelem_uid(struct listinfo *, const char *); 134156283Srwatsonstatic void add_list(struct listinfo *, const char *); 135243750Srwatsonstatic void dynsizevars(KINFO *); 136156283Srwatsonstatic void *expand_list(struct listinfo *); 137243750Srwatsonstatic const char *fmt(char **(*)(kvm_t *, const struct kinfo_proc *, int), 138243750Srwatson KINFO *, char *, int); 139156283Srwatsonstatic void free_list(struct listinfo *); 140156283Srwatsonstatic void init_list(struct listinfo *, addelem_rtn, int, const char *); 141156283Srwatsonstatic char *kludge_oldps_options(char *); 142156283Srwatsonstatic int pscomp(const void *, const void *); 143156283Srwatsonstatic void saveuser(KINFO *); 144156283Srwatsonstatic void scanvars(void); 145156283Srwatsonstatic void sizevars(void); 146156283Srwatsonstatic void usage(void); 147156283Srwatson 148156283Srwatsonstatic char dfmt[] = "pid,tt,state,time,command"; 149156283Srwatsonstatic char jfmt[] = "user,pid,ppid,pgid,jobc,state,tt,time,command"; 150156283Srwatsonstatic char lfmt[] = "uid,pid,ppid,cpu,pri,nice,vsz,rss,mwchan,state," 151156283Srwatson "tt,time,command"; 152156283Srwatsonstatic char o1[] = "pid"; 153156283Srwatsonstatic char o2[] = "tt,state,time,command"; 154156283Srwatsonstatic char ufmt[] = "user,pid,%cpu,%mem,vsz,rss,tt,state,start,time,command"; 155243750Srwatsonstatic char vfmt[] = "pid,state,time,sl,re,pagein,vsz,rss,lim,tsiz," 156191273Srwatson "%cpu,%mem,command"; 157243750Srwatsonstatic char Zfmt[] = "label"; 158156283Srwatson 159156283Srwatson#define PS_ARGS "AaCc" OPT_LAZY_f "G:gHhjLlM:mN:O:o:p:rSTt:U:uvwXxZ" 160156283Srwatson 161156283Srwatsonint 162156283Srwatsonmain(int argc, char *argv[]) 163243750Srwatson{ 164173143Srwatson struct listinfo gidlist, pgrplist, pidlist; 165173143Srwatson struct listinfo ruidlist, sesslist, ttylist, uidlist; 166156283Srwatson struct kinfo_proc *kp; 167156283Srwatson struct varent *vent; 168156283Srwatson struct winsize ws; 169156283Srwatson const char *cp, *nlistf, *memf; 170243750Srwatson char *cols; 171156283Srwatson int all, ch, dropgid, elem, flag, _fmt, i, lineno; 172243750Srwatson int nentries, nocludge, nkept, nselectors; 173243750Srwatson int prtheader, showthreads, wflag, what, xkeep, xkeep_implied; 174243750Srwatson char errbuf[_POSIX2_LINE_MAX]; 175156283Srwatson 176156283Srwatson (void) setlocale(LC_ALL, ""); 177156283Srwatson time(&now); /* Used by routines in print.c. */ 178243750Srwatson 179156283Srwatson if ((cols = getenv("COLUMNS")) != NULL && *cols != '\0') 180156283Srwatson termwidth = atoi(cols); 181156283Srwatson else if ((ioctl(STDOUT_FILENO, TIOCGWINSZ, (char *)&ws) == -1 && 182156283Srwatson ioctl(STDERR_FILENO, TIOCGWINSZ, (char *)&ws) == -1 && 183243750Srwatson ioctl(STDIN_FILENO, TIOCGWINSZ, (char *)&ws) == -1) || 184185573Srwatson ws.ws_col == 0) 185173143Srwatson termwidth = 79; 186243750Srwatson else 187191273Srwatson termwidth = ws.ws_col - 1; 188243750Srwatson 189156283Srwatson /* 190243750Srwatson * Don't apply a kludge if the first argument is an option taking an 191243750Srwatson * argument 192156283Srwatson */ 193156283Srwatson if (argc > 1) { 194156283Srwatson nocludge = 0; 195156283Srwatson if (argv[1][0] == '-') { 196156283Srwatson for (cp = PS_ARGS; *cp != '\0'; cp++) { 197243750Srwatson if (*cp != ':') 198156283Srwatson continue; 199156283Srwatson if (*(cp - 1) == argv[1][1]) { 200156283Srwatson nocludge = 1; 201173143Srwatson break; 202156283Srwatson } 203156283Srwatson } 204156283Srwatson } 205156283Srwatson if (nocludge == 0) 206243750Srwatson argv[1] = kludge_oldps_options(argv[1]); 207243750Srwatson } 208173143Srwatson 209173143Srwatson all = dropgid = _fmt = nselectors = optfatal = 0; 210173143Srwatson prtheader = showthreads = wflag = xkeep_implied = 0; 211173143Srwatson xkeep = -1; /* Neither -x nor -X. */ 212243750Srwatson init_list(&gidlist, addelem_gid, sizeof(gid_t), "group"); 213156283Srwatson init_list(&pgrplist, addelem_pid, sizeof(pid_t), "process group"); 214243750Srwatson init_list(&pidlist, addelem_pid, sizeof(pid_t), "process id"); 215156283Srwatson init_list(&ruidlist, addelem_uid, sizeof(uid_t), "ruser"); 216156283Srwatson init_list(&sesslist, addelem_pid, sizeof(pid_t), "session id"); 217156283Srwatson init_list(&ttylist, addelem_tty, sizeof(dev_t), "tty"); 218156283Srwatson init_list(&uidlist, addelem_uid, sizeof(uid_t), "user"); 219156283Srwatson memf = nlistf = _PATH_DEVNULL; 220156283Srwatson while ((ch = getopt(argc, argv, PS_ARGS)) != -1) 221156283Srwatson switch((char)ch) { 222156283Srwatson case 'A': 223156283Srwatson /* 224156283Srwatson * Exactly the same as `-ax'. This has been 225156283Srwatson * added for compatability with SUSv3, but for 226173143Srwatson * now it will not be described in the man page. 227156283Srwatson */ 228173143Srwatson nselectors++; 229173143Srwatson all = xkeep = 1; 230173143Srwatson break; 231156283Srwatson case 'a': 232156283Srwatson nselectors++; 233156283Srwatson all = 1; 234156283Srwatson break; 235156283Srwatson case 'C': 236156283Srwatson rawcpu = 1; 237173143Srwatson break; 238156283Srwatson case 'c': 239156283Srwatson cflag = 1; 240156283Srwatson break; 241156283Srwatson case 'e': /* XXX set ufmt */ 242156283Srwatson needenv = 1; 243173143Srwatson break; 244156283Srwatson#ifdef LAZY_PS 245156283Srwatson case 'f': 246156283Srwatson if (getuid() == 0 || getgid() == 0) 247156283Srwatson forceuread = 1; 248173143Srwatson break; 249156283Srwatson#endif 250156283Srwatson case 'G': 251173143Srwatson add_list(&gidlist, optarg); 252156283Srwatson xkeep_implied = 1; 253156283Srwatson nselectors++; 254173143Srwatson break; 255156283Srwatson case 'g': 256156283Srwatson#if 0 257191273Srwatson /* 258173143Srwatson * XXX - This SUSv3 behavior is still under debate 259173143Srwatson * since it conflicts with the (undocumented) 260186647Srwatson * `-g' option. So we skip it for now. 261243750Srwatson */ 262156283Srwatson add_list(&pgrplist, optarg); 263156283Srwatson xkeep_implied = 1; 264156283Srwatson nselectors++; 265156283Srwatson break; 266156283Srwatson#else 267156283Srwatson /* The historical BSD-ish (from SunOS) behavior. */ 268156283Srwatson break; /* no-op */ 269156283Srwatson#endif 270156283Srwatson case 'H': 271156283Srwatson showthreads = KERN_PROC_INC_THREAD; 272243750Srwatson break; 273156283Srwatson case 'h': 274156283Srwatson prtheader = ws.ws_row > 5 ? ws.ws_row : 22; 275156283Srwatson break; 276156283Srwatson case 'j': 277156283Srwatson parsefmt(jfmt, 0); 278243750Srwatson _fmt = 1; 279243750Srwatson jfmt[0] = '\0'; 280156283Srwatson break; 281156283Srwatson case 'L': 282156283Srwatson showkey(); 283156283Srwatson exit(0); 284243750Srwatson case 'l': 285243750Srwatson parsefmt(lfmt, 0); 286243750Srwatson _fmt = 1; 287156283Srwatson lfmt[0] = '\0'; 288156283Srwatson break; 289156283Srwatson case 'M': 290156283Srwatson memf = optarg; 291156283Srwatson dropgid = 1; 292156283Srwatson break; 293156283Srwatson case 'm': 294156283Srwatson sortby = SORTMEM; 295156283Srwatson break; 296156283Srwatson case 'N': 297156283Srwatson nlistf = optarg; 298156283Srwatson dropgid = 1; 299156283Srwatson break; 300156283Srwatson case 'O': 301156283Srwatson parsefmt(o1, 1); 302243750Srwatson parsefmt(optarg, 1); 303156283Srwatson parsefmt(o2, 1); 304243750Srwatson o1[0] = o2[0] = '\0'; 305243750Srwatson _fmt = 1; 306156283Srwatson break; 307156283Srwatson case 'o': 308243750Srwatson parsefmt(optarg, 1); 309243750Srwatson _fmt = 1; 310156283Srwatson break; 311156283Srwatson case 'p': 312156283Srwatson add_list(&pidlist, optarg); 313156283Srwatson /* 314156283Srwatson * Note: `-p' does not *set* xkeep, but any values 315243750Srwatson * from pidlist are checked before xkeep is. That 316156283Srwatson * way they are always matched, even if the user 317156283Srwatson * specifies `-X'. 318156283Srwatson */ 319156283Srwatson nselectors++; 320156283Srwatson break; 321156283Srwatson#if 0 322156283Srwatson case 'R': 323156283Srwatson /* 324156283Srwatson * XXX - This un-standard option is still under 325156283Srwatson * debate. This is what SUSv3 defines as 326156283Srwatson * the `-U' option, and while it would be 327156283Srwatson * nice to have, it could cause even more 328156283Srwatson * confusion to implement it as `-R'. 329243750Srwatson */ 330156283Srwatson add_list(&ruidlist, optarg); 331156283Srwatson xkeep_implied = 1; 332243750Srwatson nselectors++; 333243750Srwatson break; 334243750Srwatson#endif 335243750Srwatson case 'r': 336243750Srwatson sortby = SORTCPU; 337243750Srwatson break; 338243750Srwatson case 'S': 339156283Srwatson sumrusage = 1; 340156283Srwatson break; 341156283Srwatson#if 0 342156283Srwatson case 's': 343156283Srwatson /* 344156283Srwatson * XXX - This non-standard option is still under 345156283Srwatson * debate. This *is* supported on Solaris, 346156283Srwatson * Linux, and IRIX, but conflicts with `-s' 347243750Srwatson * on NetBSD and maybe some older BSD's. 348243750Srwatson */ 349243750Srwatson add_list(&sesslist, optarg); 350243750Srwatson xkeep_implied = 1; 351243750Srwatson nselectors++; 352156283Srwatson break; 353156283Srwatson#endif 354156283Srwatson case 'T': 355156283Srwatson if ((optarg = ttyname(STDIN_FILENO)) == NULL) 356156283Srwatson errx(1, "stdin: not a terminal"); 357156283Srwatson /* FALLTHROUGH */ 358156283Srwatson case 't': 359243750Srwatson add_list(&ttylist, optarg); 360156283Srwatson xkeep_implied = 1; 361156283Srwatson nselectors++; 362156283Srwatson break; 363156283Srwatson case 'U': 364156283Srwatson /* This is what SUSv3 defines as the `-u' option. */ 365156283Srwatson add_list(&uidlist, optarg); 366156283Srwatson xkeep_implied = 1; 367243750Srwatson nselectors++; 368156283Srwatson break; 369156283Srwatson case 'u': 370156283Srwatson parsefmt(ufmt, 0); 371243750Srwatson sortby = SORTCPU; 372156283Srwatson _fmt = 1; 373243750Srwatson ufmt[0] = '\0'; 374243750Srwatson break; 375243750Srwatson case 'v': 376243750Srwatson parsefmt(vfmt, 0); 377156283Srwatson sortby = SORTMEM; 378156283Srwatson _fmt = 1; 379156283Srwatson vfmt[0] = '\0'; 380156283Srwatson break; 381156283Srwatson case 'w': 382156283Srwatson if (wflag) 383243750Srwatson termwidth = UNLIMITED; 384191273Srwatson else if (termwidth < 131) 385156283Srwatson termwidth = 131; 386156283Srwatson wflag++; 387156283Srwatson break; 388156283Srwatson case 'X': 389156283Srwatson /* 390243750Srwatson * Note that `-X' and `-x' are not standard "selector" 391156283Srwatson * options. For most selector-options, we check *all* 392156283Srwatson * processes to see if any are matched by the given 393156283Srwatson * value(s). After we have a set of all the matched 394156283Srwatson * processes, then `-X' and `-x' govern whether we 395156283Srwatson * modify that *matched* set for processes which do 396156283Srwatson * not have a controlling terminal. `-X' causes 397156283Srwatson * those processes to be deleted from the matched 398156283Srwatson * set, while `-x' causes them to be kept. 399156283Srwatson */ 400156283Srwatson xkeep = 0; 401156283Srwatson break; 402243750Srwatson case 'x': 403156283Srwatson xkeep = 1; 404156283Srwatson break; 405156283Srwatson case 'Z': 406156283Srwatson parsefmt(Zfmt, 0); 407156283Srwatson Zfmt[0] = '\0'; 408156283Srwatson break; 409191273Srwatson case '?': 410191273Srwatson default: 411243750Srwatson usage(); 412243750Srwatson } 413156283Srwatson argc -= optind; 414243750Srwatson argv += optind; 415243750Srwatson if (optfatal) 416243750Srwatson exit(1); /* Error messages already printed. */ 417243750Srwatson if (xkeep < 0) /* Neither -X nor -x was specified. */ 418243750Srwatson xkeep = xkeep_implied; 419243750Srwatson 420243750Srwatson#define BACKWARD_COMPATIBILITY 421156283Srwatson#ifdef BACKWARD_COMPATIBILITY 422156283Srwatson if (*argv) { 423156283Srwatson nlistf = *argv; 424156283Srwatson if (*++argv) 425156283Srwatson memf = *argv; 426156283Srwatson } 427156283Srwatson#endif 428156283Srwatson /* 429191273Srwatson * Discard setgid privileges if not the running kernel so that bad 430191273Srwatson * guys can't print interesting stuff from kernel memory. 431243750Srwatson */ 432156283Srwatson if (dropgid) { 433243750Srwatson setgid(getgid()); 434156283Srwatson setuid(getuid()); 435156283Srwatson } 436156283Srwatson 437243750Srwatson kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf); 438243750Srwatson if (kd == 0) 439156283Srwatson errx(1, "%s", errbuf); 440243750Srwatson 441243750Srwatson if (!_fmt) 442243750Srwatson parsefmt(dfmt, 0); 443243750Srwatson 444243750Srwatson if (nselectors == 0) { 445243750Srwatson uidlist.ptr = malloc(sizeof(uid_t)); 446243750Srwatson if (uidlist.ptr == NULL) 447243750Srwatson errx(1, "malloc failed"); 448243750Srwatson nselectors = 1; 449243750Srwatson uidlist.count = uidlist.maxcount = 1; 450243750Srwatson *uidlist.uids = getuid(); 451243750Srwatson } 452243750Srwatson 453243750Srwatson /* 454243750Srwatson * scan requested variables, noting what structures are needed, 455243750Srwatson * and adjusting header widths as appropriate. 456243750Srwatson */ 457243750Srwatson scanvars(); 458243750Srwatson 459243750Srwatson /* 460243750Srwatson * Get process list. If the user requested just one selector- 461243750Srwatson * option, then kvm_getprocs can be asked to return just those 462243750Srwatson * processes. Otherwise, have it return all processes, and 463156283Srwatson * then this routine will search that full list and select the 464156283Srwatson * processes which match any of the user's selector-options. 465243750Srwatson */ 466156283Srwatson what = showthreads != 0 ? KERN_PROC_ALL : KERN_PROC_PROC; 467156283Srwatson flag = 0; 468156283Srwatson if (nselectors == 1) { 469243750Srwatson /* XXX - Apparently there's no KERN_PROC_GID flag. */ 470173143Srwatson if (pgrplist.count == 1) { 471173143Srwatson what = KERN_PROC_PGRP | showthreads; 472173143Srwatson flag = *pgrplist.pids; 473173143Srwatson nselectors = 0; 474173143Srwatson } else if (pidlist.count == 1) { 475173143Srwatson what = KERN_PROC_PID | showthreads; 476173143Srwatson flag = *pidlist.pids; 477173143Srwatson nselectors = 0; 478173143Srwatson } else if (ruidlist.count == 1) { 479173143Srwatson what = KERN_PROC_RUID | showthreads; 480173143Srwatson flag = *ruidlist.uids; 481173143Srwatson nselectors = 0; 482156283Srwatson#if 0 483156283Srwatson /* 484173143Srwatson * XXX - KERN_PROC_SESSION causes error in kvm_getprocs? 485243750Srwatson * For now, always do sid-matching in this routine. 486243750Srwatson */ 487243750Srwatson } else if (sesslist.count == 1) { 488156283Srwatson what = KERN_PROC_SESSION | showthreads; 489243750Srwatson flag = *sesslist.pids; 490243750Srwatson nselectors = 0; 491156283Srwatson#endif 492243750Srwatson } else if (ttylist.count == 1) { 493156283Srwatson what = KERN_PROC_TTY | showthreads; 494243750Srwatson flag = *ttylist.ttys; 495243750Srwatson nselectors = 0; 496156283Srwatson } else if (uidlist.count == 1) { 497156283Srwatson what = KERN_PROC_UID | showthreads; 498156283Srwatson flag = *uidlist.uids; 499243750Srwatson nselectors = 0; 500156283Srwatson } else if (all) { 501243750Srwatson /* No need for this routine to select processes. */ 502243750Srwatson nselectors = 0; 503243750Srwatson } 504243750Srwatson } 505243750Srwatson 506243750Srwatson /* 507243750Srwatson * select procs 508243750Srwatson */ 509243750Srwatson nentries = -1; 510243750Srwatson kp = kvm_getprocs(kd, what, flag, &nentries); 511243750Srwatson if ((kp == NULL && nentries > 0) || (kp != NULL && nentries < 0)) 512243750Srwatson errx(1, "%s", kvm_geterr(kd)); 513243750Srwatson nkept = 0; 514156283Srwatson if (nentries > 0) { 515243750Srwatson if ((kinfo = malloc(nentries * sizeof(*kinfo))) == NULL) 516243750Srwatson errx(1, "malloc failed"); 517173143Srwatson for (i = nentries; --i >= 0; ++kp) { 518173143Srwatson /* 519243750Srwatson * If the user specified multiple selection-criteria, 520156283Srwatson * then keep any process matched by the inclusive OR 521156283Srwatson * of all the selection-criteria given. 522156283Srwatson */ 523156283Srwatson if (pidlist.count > 0) { 524243750Srwatson for (elem = 0; elem < pidlist.count; elem++) 525243750Srwatson if (kp->ki_pid == pidlist.pids[elem]) 526243750Srwatson goto keepit; 527156283Srwatson } 528156283Srwatson /* 529173143Srwatson * Note that we had to process pidlist before 530243750Srwatson * filtering out processes which do not have 531156283Srwatson * a controlling terminal. 532156283Srwatson */ 533243750Srwatson if (xkeep == 0) { 534156283Srwatson if ((kp->ki_tdev == NODEV || 535156283Srwatson (kp->ki_flag & P_CONTROLT) == 0)) 536243750Srwatson continue; 537243750Srwatson } 538156283Srwatson if (nselectors == 0) 539243750Srwatson goto keepit; 540243750Srwatson if (gidlist.count > 0) { 541243750Srwatson for (elem = 0; elem < gidlist.count; elem++) 542191273Srwatson if (kp->ki_rgid == gidlist.gids[elem]) 543243750Srwatson goto keepit; 544243750Srwatson } 545243750Srwatson if (pgrplist.count > 0) { 546243750Srwatson for (elem = 0; elem < pgrplist.count; elem++) 547156283Srwatson if (kp->ki_pgid == pgrplist.pids[elem]) 548156283Srwatson goto keepit; 549243750Srwatson } 550156283Srwatson if (ruidlist.count > 0) { 551156283Srwatson for (elem = 0; elem < ruidlist.count; elem++) 552156283Srwatson if (kp->ki_ruid == ruidlist.uids[elem]) 553243750Srwatson goto keepit; 554156283Srwatson } 555156283Srwatson if (sesslist.count > 0) { 556156283Srwatson for (elem = 0; elem < sesslist.count; elem++) 557156283Srwatson if (kp->ki_sid == sesslist.pids[elem]) 558243750Srwatson goto keepit; 559156283Srwatson } 560243750Srwatson if (ttylist.count > 0) { 561243750Srwatson for (elem = 0; elem < ttylist.count; elem++) 562243750Srwatson if (kp->ki_tdev == ttylist.ttys[elem]) 563156283Srwatson goto keepit; 564156283Srwatson } 565156283Srwatson if (uidlist.count > 0) { 566156283Srwatson for (elem = 0; elem < uidlist.count; elem++) 567156283Srwatson if (kp->ki_uid == uidlist.uids[elem]) 568156283Srwatson goto keepit; 569156283Srwatson } 570243750Srwatson /* 571156283Srwatson * This process did not match any of the user's 572243750Srwatson * selector-options, so skip the process. 573243750Srwatson */ 574243750Srwatson continue; 575243750Srwatson 576243750Srwatson keepit: 577156283Srwatson kinfo[nkept].ki_p = kp; 578156283Srwatson if (needuser) 579156283Srwatson saveuser(&kinfo[nkept]); 580243750Srwatson dynsizevars(&kinfo[nkept]); 581156283Srwatson nkept++; 582156283Srwatson } 583156283Srwatson } 584243750Srwatson 585156283Srwatson sizevars(); 586156283Srwatson 587156283Srwatson /* 588243750Srwatson * print header 589156283Srwatson */ 590156283Srwatson printheader(); 591243750Srwatson if (nkept == 0) 592243750Srwatson exit(1); 593156283Srwatson 594243750Srwatson /* 595156283Srwatson * sort proc list 596156283Srwatson */ 597156283Srwatson qsort(kinfo, nkept, sizeof(KINFO), pscomp); 598156283Srwatson /* 599156283Srwatson * For each process, call each variable output function. 600156283Srwatson */ 601156283Srwatson for (i = lineno = 0; i < nkept; i++) { 602156283Srwatson for (vent = vhead; vent; vent = vent->next) { 603156283Srwatson (vent->var->oproc)(&kinfo[i], vent); 604156283Srwatson if (vent->next != NULL) 605156283Srwatson (void)putchar(' '); 606156283Srwatson } 607156283Srwatson (void)putchar('\n'); 608156283Srwatson if (prtheader && lineno++ == prtheader - 4) { 609156283Srwatson (void)putchar('\n'); 610156283Srwatson printheader(); 611156283Srwatson lineno = 0; 612156283Srwatson } 613156283Srwatson } 614156283Srwatson free_list(&gidlist); 615243750Srwatson free_list(&pidlist); 616243750Srwatson free_list(&pgrplist); 617243750Srwatson free_list(&ruidlist); 618243750Srwatson free_list(&sesslist); 619156283Srwatson free_list(&ttylist); 620156283Srwatson free_list(&uidlist); 621173143Srwatson 622156283Srwatson exit(eval); 623243750Srwatson} 624243750Srwatson 625243750Srwatsonstatic int 626243750Srwatsonaddelem_gid(struct listinfo *inf, const char *elem) 627243750Srwatson{ 628243750Srwatson struct group *grp; 629243750Srwatson const char *nameorID; 630243750Srwatson char *endp; 631243750Srwatson intmax_t ltemp; 632243750Srwatson 633156283Srwatson if (*elem == '\0' || strlen(elem) >= MAXLOGNAME) { 634156283Srwatson if (*elem == '\0') 635156283Srwatson warnx("Invalid (zero-length) %s name", inf->lname); 636156283Srwatson else 637156283Srwatson warnx("%s name too long: %s", inf->lname, elem); 638156283Srwatson optfatal = 1; 639156283Srwatson return (0); /* Do not add this value. */ 640156283Srwatson } 641156283Srwatson 642156283Srwatson /* 643156283Srwatson * SUSv3 states that `ps -G grouplist' should match "real-group 644156283Srwatson * ID numbers", and does not mention group-names. I do want to 645156283Srwatson * also support group-names, so this tries for a group-id first, 646156283Srwatson * and only tries for a name if that doesn't work. This is the 647156283Srwatson * opposite order of what is done in addelem_uid(), but in 648156283Srwatson * practice the order would only matter for group-names which 649156283Srwatson * are all-numeric. 650156283Srwatson */ 651156283Srwatson grp = NULL; 652156283Srwatson nameorID = "named"; 653156283Srwatson errno = 0; 654156283Srwatson ltemp = strtol(elem, &endp, 10); 655156283Srwatson if (errno == 0 && *endp == '\0' && ltemp >= 0 && ltemp <= GID_MAX) { 656156283Srwatson nameorID = "name or ID matches"; 657156283Srwatson grp = getgrgid((gid_t)ltemp); 658156283Srwatson } 659156283Srwatson if (grp == NULL) 660156283Srwatson grp = getgrnam(elem); 661156283Srwatson if (grp == NULL) { 662156283Srwatson warnx("No %s %s '%s'", inf->lname, nameorID, elem); 663243750Srwatson optfatal = 1; 664243750Srwatson return (0); /* Do not add this value. */ 665243750Srwatson } 666243750Srwatson 667243750Srwatson if (inf->count >= inf->maxcount) 668243750Srwatson expand_list(inf); 669243750Srwatson inf->gids[(inf->count)++] = grp->gr_gid; 670243750Srwatson return (1); 671243750Srwatson} 672156283Srwatson 673156283Srwatson#define BSD_PID_MAX 99999 /* Copy of PID_MAX from sys/proc.h. */ 674156283Srwatsonstatic int 675156283Srwatsonaddelem_pid(struct listinfo *inf, const char *elem) 676156283Srwatson{ 677156283Srwatson char *endp; 678243750Srwatson long tempid; 679156283Srwatson 680156283Srwatson if (*elem == '\0') 681156283Srwatson tempid = 0L; 682156283Srwatson else { 683156283Srwatson errno = 0; 684156283Srwatson tempid = strtol(elem, &endp, 10); 685156283Srwatson if (*endp != '\0' || tempid < 0 || elem == endp) { 686156283Srwatson warnx("Invalid %s: %s", inf->lname, elem); 687156283Srwatson errno = ERANGE; 688156283Srwatson } else if (errno != 0 || tempid > BSD_PID_MAX) { 689156283Srwatson warnx("%s too large: %s", inf->lname, elem); 690156283Srwatson errno = ERANGE; 691156283Srwatson } 692156283Srwatson if (errno == ERANGE) { 693156283Srwatson optfatal = 1; 694156283Srwatson return (0); /* Do not add this value. */ 695156283Srwatson } 696156283Srwatson } 697156283Srwatson 698156283Srwatson if (inf->count >= inf->maxcount) 699243750Srwatson expand_list(inf); 700243750Srwatson inf->pids[(inf->count)++] = tempid; 701156283Srwatson return (1); 702156283Srwatson} 703156283Srwatson#undef BSD_PID_MAX 704156283Srwatson 705156283Srwatsonstatic int 706156283Srwatsonaddelem_tty(struct listinfo *inf, const char *elem) 707173143Srwatson{ 708173143Srwatson const char *ttypath; 709243750Srwatson struct stat sb; 710243750Srwatson char pathbuf[PATH_MAX]; 711156283Srwatson 712156283Srwatson if (strcmp(elem, "co") == 0) 713173143Srwatson ttypath = strdup(_PATH_CONSOLE); 714173143Srwatson else if (*elem == '/') 715243750Srwatson ttypath = elem; 716243750Srwatson else { 717156283Srwatson strlcpy(pathbuf, _PATH_TTY, sizeof(pathbuf)); 718156283Srwatson strlcat(pathbuf, elem, sizeof(pathbuf)); 719243750Srwatson ttypath = pathbuf; 720243750Srwatson } 721156283Srwatson 722156283Srwatson if (stat(ttypath, &sb) == -1) { 723173143Srwatson warn("%s", ttypath); 724173143Srwatson optfatal = 1; 725243750Srwatson return (0); /* Do not add this value. */ 726243750Srwatson } 727173143Srwatson if (!S_ISCHR(sb.st_mode)) { 728173143Srwatson warn("%s: Not a terminal", ttypath); 729243750Srwatson optfatal = 1; 730243750Srwatson return (0); /* Do not add this value. */ 731156283Srwatson } 732156283Srwatson 733156283Srwatson if (inf->count >= inf->maxcount) 734156283Srwatson expand_list(inf); 735156283Srwatson inf->ttys[(inf->count)++] = sb.st_rdev; 736156283Srwatson return (1); 737156283Srwatson} 738156283Srwatson 739156283Srwatsonstatic int 740156283Srwatsonaddelem_uid(struct listinfo *inf, const char *elem) 741156283Srwatson{ 742156283Srwatson struct passwd *pwd; 743156283Srwatson char *endp; 744156283Srwatson intmax_t ltemp; 745156283Srwatson 746156283Srwatson if (*elem == '\0' || strlen(elem) >= MAXLOGNAME) { 747156283Srwatson if (*elem == '\0') 748156283Srwatson warnx("Invalid (zero-length) %s name", inf->lname); 749156283Srwatson else 750156283Srwatson warnx("%s name too long: %s", inf->lname, elem); 751173143Srwatson optfatal = 1; 752156283Srwatson return (0); /* Do not add this value. */ 753243750Srwatson } 754243750Srwatson 755243750Srwatson pwd = getpwnam(elem); 756156283Srwatson if (pwd == NULL) { 757173143Srwatson errno = 0; 758243750Srwatson ltemp = strtol(elem, &endp, 10); 759243750Srwatson if (errno != 0 || *endp != '\0' || ltemp < 0 || 760243750Srwatson ltemp > UID_MAX) 761243750Srwatson warnx("No %s named '%s'", inf->lname, elem); 762243750Srwatson else { 763243750Srwatson /* The string is all digits, so it might be a userID. */ 764243750Srwatson pwd = getpwuid((uid_t)ltemp); 765243750Srwatson if (pwd == NULL) 766243750Srwatson warnx("No %s name or ID matches '%s'", 767243750Srwatson inf->lname, elem); 768243750Srwatson } 769243750Srwatson } 770243750Srwatson if (pwd == NULL) { 771243750Srwatson /* 772243750Srwatson * These used to be treated as minor warnings (and the 773156283Srwatson * option was simply ignored), but now they are fatal 774243750Srwatson * errors (and the command will be aborted). 775156283Srwatson */ 776156283Srwatson optfatal = 1; 777156283Srwatson return (0); /* Do not add this value. */ 778 } 779 780 if (inf->count >= inf->maxcount) 781 expand_list(inf); 782 inf->uids[(inf->count)++] = pwd->pw_uid; 783 return (1); 784} 785 786static void 787add_list(struct listinfo *inf, const char *argp) 788{ 789 const char *savep; 790 char *cp, *endp; 791 int toolong; 792 char elemcopy[PATH_MAX]; 793 794 while (*argp != '\0') { 795 while (*argp != '\0' && strchr(W_SEP, *argp) != NULL) 796 argp++; 797 savep = argp; 798 toolong = 0; 799 cp = elemcopy; 800 if (strchr(T_SEP, *argp) == NULL) { 801 endp = elemcopy + sizeof(elemcopy) - 1; 802 while (*argp != '\0' && cp <= endp && 803 strchr(W_SEP T_SEP, *argp) == NULL) 804 *cp++ = *argp++; 805 if (cp > endp) 806 toolong = 1; 807 } 808 if (!toolong) { 809 *cp = '\0'; 810#ifndef ADD_PS_LISTRESET 811 /* 812 * This is how the standard expects lists to 813 * be handled. 814 */ 815 inf->addelem(inf, elemcopy); 816#else 817 /* 818 * This would add a simple non-standard-but-convienent 819 * feature. 820 * 821 * XXX - The first time I tried to add this check, 822 * it increased the total size of `ps' by 3940 823 * bytes on i386! That's 12% of the entire 824 * program! The `ps.o' file grew by only about 825 * 40 bytes, but the final (stripped) executable 826 * in /bin/ps grew by 12%. I have not had time 827 * to investigate, so skip the feature for now. 828 */ 829 /* 830 * We now have a single element. Add it to the 831 * list, unless the element is ":". In that case, 832 * reset the list so previous entries are ignored. 833 */ 834 if (strcmp(elemcopy, ":") == 0) 835 inf->count = 0; 836 else 837 inf->addelem(inf, elemcopy); 838#endif 839 } else { 840 /* 841 * The string is too long to copy. Find the end 842 * of the string to print out the warning message. 843 */ 844 while (*argp != '\0' && strchr(W_SEP T_SEP, 845 *argp) == NULL) 846 argp++; 847 warnx("Value too long: %.*s", (int)(argp - savep), 848 savep); 849 optfatal = 1; 850 } 851 /* 852 * Skip over any number of trailing whitespace characters, 853 * but only one (at most) trailing element-terminating 854 * character. 855 */ 856 while (*argp != '\0' && strchr(W_SEP, *argp) != NULL) 857 argp++; 858 if (*argp != '\0' && strchr(T_SEP, *argp) != NULL) { 859 argp++; 860 /* Catch case where string ended with a comma. */ 861 if (*argp == '\0') 862 inf->addelem(inf, argp); 863 } 864 } 865} 866 867static void * 868expand_list(struct listinfo *inf) 869{ 870 void *newlist; 871 int newmax; 872 873 newmax = (inf->maxcount + 1) << 1; 874 newlist = realloc(inf->ptr, newmax * inf->elemsize); 875 if (newlist == NULL) { 876 free(inf->ptr); 877 errx(1, "realloc to %d %ss failed", newmax, 878 inf->lname); 879 } 880 inf->maxcount = newmax; 881 inf->ptr = newlist; 882 883 return (newlist); 884} 885 886static void 887free_list(struct listinfo *inf) 888{ 889 890 inf->count = inf->elemsize = inf->maxcount = 0; 891 if (inf->ptr != NULL) 892 free(inf->ptr); 893 inf->addelem = NULL; 894 inf->lname = NULL; 895 inf->ptr = NULL; 896} 897 898static void 899init_list(struct listinfo *inf, addelem_rtn artn, int elemsize, 900 const char *lname) 901{ 902 903 inf->count = inf->maxcount = 0; 904 inf->elemsize = elemsize; 905 inf->addelem = artn; 906 inf->lname = lname; 907 inf->ptr = NULL; 908} 909 910VARENT * 911find_varentry(VAR *v) 912{ 913 struct varent *vent; 914 915 for (vent = vhead; vent; vent = vent->next) { 916 if (strcmp(vent->var->name, v->name) == 0) 917 return vent; 918 } 919 return NULL; 920} 921 922static void 923scanvars(void) 924{ 925 struct varent *vent; 926 VAR *v; 927 928 for (vent = vhead; vent; vent = vent->next) { 929 v = vent->var; 930 if (v->flag & DSIZ) { 931 v->dwidth = v->width; 932 v->width = 0; 933 } 934 if (v->flag & USER) 935 needuser = 1; 936 if (v->flag & COMM) 937 needcomm = 1; 938 } 939} 940 941static void 942dynsizevars(KINFO *ki) 943{ 944 struct varent *vent; 945 VAR *v; 946 int i; 947 948 for (vent = vhead; vent; vent = vent->next) { 949 v = vent->var; 950 if (!(v->flag & DSIZ)) 951 continue; 952 i = (v->sproc)( ki); 953 if (v->width < i) 954 v->width = i; 955 if (v->width > v->dwidth) 956 v->width = v->dwidth; 957 } 958} 959 960static void 961sizevars(void) 962{ 963 struct varent *vent; 964 VAR *v; 965 int i; 966 967 for (vent = vhead; vent; vent = vent->next) { 968 v = vent->var; 969 i = strlen(vent->header); 970 if (v->width < i) 971 v->width = i; 972 totwidth += v->width + 1; /* +1 for space */ 973 } 974 totwidth--; 975} 976 977static const char * 978fmt(char **(*fn)(kvm_t *, const struct kinfo_proc *, int), KINFO *ki, 979 char *comm, int maxlen) 980{ 981 const char *s; 982 983 s = fmt_argv((*fn)(kd, ki->ki_p, termwidth), comm, maxlen); 984 return (s); 985} 986 987#define UREADOK(ki) (forceuread || (ki->ki_p->ki_sflag & PS_INMEM)) 988 989static void 990saveuser(KINFO *ki) 991{ 992 993 if (ki->ki_p->ki_sflag & PS_INMEM) { 994 /* 995 * The u-area might be swapped out, and we can't get 996 * at it because we have a crashdump and no swap. 997 * If it's here fill in these fields, otherwise, just 998 * leave them 0. 999 */ 1000 ki->ki_valid = 1; 1001 } else 1002 ki->ki_valid = 0; 1003 /* 1004 * save arguments if needed 1005 */ 1006 if (needcomm && (UREADOK(ki) || (ki->ki_p->ki_args != NULL))) { 1007 ki->ki_args = strdup(fmt(kvm_getargv, ki, ki->ki_p->ki_comm, 1008 MAXCOMLEN)); 1009 } else if (needcomm) { 1010 asprintf(&ki->ki_args, "(%s)", ki->ki_p->ki_comm); 1011 } else { 1012 ki->ki_args = NULL; 1013 } 1014 if (needenv && UREADOK(ki)) { 1015 ki->ki_env = strdup(fmt(kvm_getenvv, ki, (char *)NULL, 0)); 1016 } else if (needenv) { 1017 ki->ki_env = malloc(3); 1018 strcpy(ki->ki_env, "()"); 1019 } else { 1020 ki->ki_env = NULL; 1021 } 1022} 1023 1024static int 1025pscomp(const void *a, const void *b) 1026{ 1027 int i; 1028#define VSIZE(k) ((k)->ki_p->ki_dsize + (k)->ki_p->ki_ssize + \ 1029 (k)->ki_p->ki_tsize) 1030 1031 if (sortby == SORTCPU) 1032 return (getpcpu((const KINFO *)b) - getpcpu((const KINFO *)a)); 1033 if (sortby == SORTMEM) 1034 return (VSIZE((const KINFO *)b) - VSIZE((const KINFO *)a)); 1035 i = (int)((const KINFO *)a)->ki_p->ki_tdev - 1036 (int)((const KINFO *)b)->ki_p->ki_tdev; 1037 if (i == 0) 1038 i = ((const KINFO *)a)->ki_p->ki_pid - 1039 ((const KINFO *)b)->ki_p->ki_pid; 1040 return (i); 1041} 1042 1043/* 1044 * ICK (all for getopt), would rather hide the ugliness 1045 * here than taint the main code. 1046 * 1047 * ps foo -> ps -foo 1048 * ps 34 -> ps -p34 1049 * 1050 * The old convention that 't' with no trailing tty arg means the users 1051 * tty, is only supported if argv[1] doesn't begin with a '-'. This same 1052 * feature is available with the option 'T', which takes no argument. 1053 */ 1054static char * 1055kludge_oldps_options(char *s) 1056{ 1057 int have_fmt; 1058 size_t len; 1059 char *newopts, *ns, *cp; 1060 1061 /* 1062 * If we have an 'o' option, then note it, since we don't want to do 1063 * some types of munging. 1064 */ 1065 have_fmt = index(s, 'o') != NULL; 1066 1067 len = strlen(s); 1068 if ((newopts = ns = malloc(len + 2)) == NULL) 1069 errx(1, "malloc failed"); 1070 /* 1071 * options begin with '-' 1072 */ 1073 if (*s != '-') 1074 *ns++ = '-'; /* add option flag */ 1075 /* 1076 * gaze to end of argv[1] 1077 */ 1078 cp = s + len - 1; 1079 /* 1080 * if last letter is a 't' flag with no argument (in the context 1081 * of the oldps options -- option string NOT starting with a '-' -- 1082 * then convert to 'T' (meaning *this* terminal, i.e. ttyname(0)). 1083 * 1084 * However, if a flag accepting a string argument is found in the 1085 * option string, the remainder of the string is the argument to 1086 * that flag; do not modify that argument. 1087 */ 1088 if (strcspn(s, "MNOoU") == len && *cp == 't' && *s != '-') 1089 *cp = 'T'; 1090 else { 1091 /* 1092 * otherwise check for trailing number, which *may* be a 1093 * pid. 1094 */ 1095 while (cp >= s && isdigit(*cp)) 1096 --cp; 1097 } 1098 cp++; 1099 memmove(ns, s, (size_t)(cp - s)); /* copy up to trailing number */ 1100 ns += cp - s; 1101 /* 1102 * if there's a trailing number, and not a preceding 'p' (pid) or 1103 * 't' (tty) flag, then assume it's a pid and insert a 'p' flag. 1104 */ 1105 if (isdigit(*cp) && 1106 (cp == s || (cp[-1] != 't' && cp[-1] != 'p')) && 1107 (cp - 1 == s || cp[-2] != 't') && !have_fmt) 1108 *ns++ = 'p'; 1109 (void)strcpy(ns, cp); /* and append the number */ 1110 1111 return (newopts); 1112} 1113 1114static void 1115usage(void) 1116{ 1117#define SINGLE_OPTS "[-aC" OPT_LAZY_f "HhjlmrSTuvwXxZ]" 1118 1119 (void)fprintf(stderr, "%s\n%s\n%s\n%s\n", 1120 "usage: ps " SINGLE_OPTS " [-G gid[,gid]] [-O|o fmt]", 1121 " [-p pid[,pid]] [-t tty[,tty]] [-U user[,user]]", 1122 " [-M core] [-N system]", 1123 " ps [-L]"); 1124 exit(1); 1125} 1126