ps.c revision 129967
11556Srgrimes/*- 21556Srgrimes * Copyright (c) 1990, 1993, 1994 31556Srgrimes * The Regents of the University of California. All rights reserved. 41556Srgrimes * 51556Srgrimes * Redistribution and use in source and binary forms, with or without 61556Srgrimes * modification, are permitted provided that the following conditions 71556Srgrimes * are met: 81556Srgrimes * 1. Redistributions of source code must retain the above copyright 91556Srgrimes * notice, this list of conditions and the following disclaimer. 101556Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 111556Srgrimes * notice, this list of conditions and the following disclaimer in the 121556Srgrimes * documentation and/or other materials provided with the distribution. 131556Srgrimes * 4. Neither the name of the University nor the names of its contributors 141556Srgrimes * may be used to endorse or promote products derived from this software 151556Srgrimes * without specific prior written permission. 161556Srgrimes * 171556Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 181556Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 191556Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 201556Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 211556Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 221556Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 231556Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 241556Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 251556Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 261556Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 271556Srgrimes * SUCH DAMAGE. 28127499Sgad * ------+---------+---------+-------- + --------+---------+---------+---------* 29127499Sgad * Copyright (c) 2004 - Garance Alistair Drosehn <gad@FreeBSD.org>. 30127499Sgad * All rights reserved. 31127499Sgad * 32127499Sgad * Significant modifications made to bring `ps' options somewhat closer 33127499Sgad * to the standard for `ps' as described in SingleUnixSpec-v3. 34127499Sgad * ------+---------+---------+-------- + --------+---------+---------+---------* 351556Srgrimes */ 361556Srgrimes 371556Srgrimes#ifndef lint 3890143Smarkmstatic const char copyright[] = 391556Srgrimes"@(#) Copyright (c) 1990, 1993, 1994\n\ 401556Srgrimes The Regents of the University of California. All rights reserved.\n"; 411556Srgrimes#endif /* not lint */ 421556Srgrimes 4390143Smarkm#if 0 441556Srgrimes#ifndef lint 4536049Scharnierstatic char sccsid[] = "@(#)ps.c 8.4 (Berkeley) 4/2/94"; 4690143Smarkm#endif /* not lint */ 4736049Scharnier#endif 48110391Scharnier 4999110Sobrien#include <sys/cdefs.h> 5099110Sobrien__FBSDID("$FreeBSD: head/bin/ps/ps.c 129967 2004-06-01 22:19:16Z gad $"); 511556Srgrimes 521556Srgrimes#include <sys/param.h> 53127546Sgad#include <sys/proc.h> 543296Sdg#include <sys/user.h> 551556Srgrimes#include <sys/stat.h> 561556Srgrimes#include <sys/ioctl.h> 571556Srgrimes#include <sys/sysctl.h> 581556Srgrimes 591556Srgrimes#include <ctype.h> 601556Srgrimes#include <err.h> 61127149Sgad#include <errno.h> 621556Srgrimes#include <fcntl.h> 63127499Sgad#include <grp.h> 641556Srgrimes#include <kvm.h> 6513514Smpp#include <limits.h> 6673367Sache#include <locale.h> 671556Srgrimes#include <paths.h> 6890143Smarkm#include <pwd.h> 691556Srgrimes#include <stdio.h> 701556Srgrimes#include <stdlib.h> 711556Srgrimes#include <string.h> 721556Srgrimes#include <unistd.h> 731556Srgrimes 741556Srgrimes#include "ps.h" 751556Srgrimes 76127499Sgad#define W_SEP " \t" /* "Whitespace" list separators */ 77127499Sgad#define T_SEP "," /* "Terminate-element" list separators */ 7866377Sbrian 79127537Sgad#ifdef LAZY_PS 80127555Sgad#define DEF_UREAD 0 81127537Sgad#define OPT_LAZY_f "f" 82127537Sgad#else 83127555Sgad#define DEF_UREAD 1 /* Always do the more-expensive read. */ 84127537Sgad#define OPT_LAZY_f /* I.e., the `-f' option is not added. */ 85127537Sgad#endif 86127537Sgad 87129914Sgad/* 88129914Sgad * isdigit is defined to work on an 'int', in the range 0 to 255, plus EOF. 89129914Sgad * Define a wrapper which can take 'char', either signed or unsigned. 90129914Sgad */ 91129914Sgad#define isdigitch(Anychar) isdigit(((int) Anychar) & 255) 92129914Sgad 93127537Sgadint cflag; /* -c */ 94127537Sgadint eval; /* Exit value */ 95127537Sgadtime_t now; /* Current time(3) value */ 96127537Sgadint rawcpu; /* -C */ 97127537Sgadint sumrusage; /* -S */ 98127537Sgadint termwidth; /* Width of the screen (0 == infinity). */ 99127537Sgadint totwidth; /* Calculated-width of requested variables. */ 100127537Sgad 10190143Smarkmstruct varent *vhead; 1021556Srgrimes 103127537Sgadstatic int forceuread = DEF_UREAD; /* Do extra work to get u-area. */ 104127537Sgadstatic kvm_t *kd; 105127537Sgadstatic KINFO *kinfo; 106127537Sgadstatic int needcomm; /* -o "command" */ 107127537Sgadstatic int needenv; /* -e */ 108127537Sgadstatic int needuser; /* -o "user" */ 109127537Sgadstatic int optfatal; /* Fatal error parsing some list-option. */ 1101556Srgrimes 111127537Sgadstatic enum sort { DEFAULT, SORTMEM, SORTCPU } sortby = DEFAULT; 11297966Sjmallett 113127499Sgadstruct listinfo; 114127537Sgadtypedef int addelem_rtn(struct listinfo *_inf, const char *_elem); 115127499Sgad 116127499Sgadstruct listinfo { 117127499Sgad int count; 118127499Sgad int maxcount; 119127499Sgad int elemsize; 120127499Sgad addelem_rtn *addelem; 121127499Sgad const char *lname; 122127499Sgad union { 123127499Sgad gid_t *gids; 124127499Sgad pid_t *pids; 125127499Sgad dev_t *ttys; 126127499Sgad uid_t *uids; 127127499Sgad void *ptr; 128127823Sgad } l; 129127499Sgad}; 130127499Sgad 131127499Sgadstatic int addelem_gid(struct listinfo *, const char *); 132127499Sgadstatic int addelem_pid(struct listinfo *, const char *); 133127499Sgadstatic int addelem_tty(struct listinfo *, const char *); 134127499Sgadstatic int addelem_uid(struct listinfo *, const char *); 135127499Sgadstatic void add_list(struct listinfo *, const char *); 136127536Sgadstatic void dynsizevars(KINFO *); 137127499Sgadstatic void *expand_list(struct listinfo *); 138127598Sgadstatic const char * 139127598Sgad fmt(char **(*)(kvm_t *, const struct kinfo_proc *, int), 140127536Sgad KINFO *, char *, int); 141127499Sgadstatic void free_list(struct listinfo *); 142127499Sgadstatic void init_list(struct listinfo *, addelem_rtn, int, const char *); 143129952Sgadstatic char *kludge_oldps_options(const char *, char *, const char *); 144127536Sgadstatic int pscomp(const void *, const void *); 145127536Sgadstatic void saveuser(KINFO *); 146127536Sgadstatic void scanvars(void); 147127536Sgadstatic void sizevars(void); 148127536Sgadstatic void usage(void); 149127499Sgad 15097875Sjmallettstatic char dfmt[] = "pid,tt,state,time,command"; 151129635Sgadstatic char jfmt[] = "user,pid,ppid,pgid,sid,jobc,state,tt,time,command"; 152127538Sgadstatic char lfmt[] = "uid,pid,ppid,cpu,pri,nice,vsz,rss,mwchan,state," 153127538Sgad "tt,time,command"; 15490143Smarkmstatic char o1[] = "pid"; 15597875Sjmallettstatic char o2[] = "tt,state,time,command"; 15697875Sjmallettstatic char ufmt[] = "user,pid,%cpu,%mem,vsz,rss,tt,state,start,time,command"; 157127538Sgadstatic char vfmt[] = "pid,state,time,sl,re,pagein,vsz,rss,lim,tsiz," 158127538Sgad "%cpu,%mem,command"; 159105831Srwatsonstatic char Zfmt[] = "label"; 1601556Srgrimes 161127843Sgad#define PS_ARGS "AaCce" OPT_LAZY_f "G:gHhjLlM:mN:O:o:p:rSTt:U:uvwXxZ" 16298494Ssobomax 1631556Srgrimesint 16490110Simpmain(int argc, char *argv[]) 1651556Srgrimes{ 166127499Sgad struct listinfo gidlist, pgrplist, pidlist; 167127499Sgad struct listinfo ruidlist, sesslist, ttylist, uidlist; 1681556Srgrimes struct kinfo_proc *kp; 1691556Srgrimes struct varent *vent; 1701556Srgrimes struct winsize ws; 171129914Sgad const char *nlistf, *memf; 172127539Sgad char *cols; 173127499Sgad int all, ch, dropgid, elem, flag, _fmt, i, lineno; 174129914Sgad int nentries, nkept, nselectors; 175127499Sgad int prtheader, showthreads, wflag, what, xkeep, xkeep_implied; 17690143Smarkm char errbuf[_POSIX2_LINE_MAX]; 1771556Srgrimes 17811809Sache (void) setlocale(LC_ALL, ""); 179127542Sgad time(&now); /* Used by routines in print.c. */ 18011809Sache 18197804Stjr if ((cols = getenv("COLUMNS")) != NULL && *cols != '\0') 18297804Stjr termwidth = atoi(cols); 18397804Stjr else if ((ioctl(STDOUT_FILENO, TIOCGWINSZ, (char *)&ws) == -1 && 1841556Srgrimes ioctl(STDERR_FILENO, TIOCGWINSZ, (char *)&ws) == -1 && 1851556Srgrimes ioctl(STDIN_FILENO, TIOCGWINSZ, (char *)&ws) == -1) || 1861556Srgrimes ws.ws_col == 0) 1871556Srgrimes termwidth = 79; 1881556Srgrimes else 1891556Srgrimes termwidth = ws.ws_col - 1; 1901556Srgrimes 19198494Ssobomax /* 192129914Sgad * Hide a number of option-processing kludges in a separate routine, 193129914Sgad * to support some historical BSD behaviors, such as `ps axu'. 19498494Ssobomax */ 195129914Sgad if (argc > 1) 196129915Sgad argv[1] = kludge_oldps_options(PS_ARGS, argv[1], argv[2]); 1971556Srgrimes 198127542Sgad all = dropgid = _fmt = nselectors = optfatal = 0; 199127542Sgad prtheader = showthreads = wflag = xkeep_implied = 0; 200127542Sgad xkeep = -1; /* Neither -x nor -X. */ 201127499Sgad init_list(&gidlist, addelem_gid, sizeof(gid_t), "group"); 202127499Sgad init_list(&pgrplist, addelem_pid, sizeof(pid_t), "process group"); 203127499Sgad init_list(&pidlist, addelem_pid, sizeof(pid_t), "process id"); 204127499Sgad init_list(&ruidlist, addelem_uid, sizeof(uid_t), "ruser"); 205127499Sgad init_list(&sesslist, addelem_pid, sizeof(pid_t), "session id"); 206127499Sgad init_list(&ttylist, addelem_tty, sizeof(dev_t), "tty"); 207127499Sgad init_list(&uidlist, addelem_uid, sizeof(uid_t), "user"); 20889909Sru memf = nlistf = _PATH_DEVNULL; 20998494Ssobomax while ((ch = getopt(argc, argv, PS_ARGS)) != -1) 210129967Sgad switch ((char)ch) { 211127499Sgad case 'A': 212127499Sgad /* 213127499Sgad * Exactly the same as `-ax'. This has been 214127499Sgad * added for compatability with SUSv3, but for 215127499Sgad * now it will not be described in the man page. 216127499Sgad */ 217127499Sgad nselectors++; 218127499Sgad all = xkeep = 1; 219127499Sgad break; 2201556Srgrimes case 'a': 221127499Sgad nselectors++; 2221556Srgrimes all = 1; 2231556Srgrimes break; 22419068Speter case 'C': 22519068Speter rawcpu = 1; 22619068Speter break; 22719068Speter case 'c': 22819068Speter cflag = 1; 22919068Speter break; 2301556Srgrimes case 'e': /* XXX set ufmt */ 2311556Srgrimes needenv = 1; 2321556Srgrimes break; 233127506Sgad#ifdef LAZY_PS 234127506Sgad case 'f': 235127506Sgad if (getuid() == 0 || getgid() == 0) 236127542Sgad forceuread = 1; 237127506Sgad break; 238127506Sgad#endif 239127499Sgad case 'G': 240127499Sgad add_list(&gidlist, optarg); 241127499Sgad xkeep_implied = 1; 242127499Sgad nselectors++; 243127499Sgad break; 244127542Sgad case 'g': 245127499Sgad#if 0 246127597Sgad /*- 247127542Sgad * XXX - This SUSv3 behavior is still under debate 248127542Sgad * since it conflicts with the (undocumented) 249127542Sgad * `-g' option. So we skip it for now. 250127542Sgad */ 251127499Sgad add_list(&pgrplist, optarg); 252127499Sgad xkeep_implied = 1; 253127499Sgad nselectors++; 254127499Sgad break; 255127499Sgad#else 256127542Sgad /* The historical BSD-ish (from SunOS) behavior. */ 2571556Srgrimes break; /* no-op */ 258127499Sgad#endif 259116265Sscottl case 'H': 260126127Sdeischen showthreads = KERN_PROC_INC_THREAD; 261116265Sscottl break; 2621556Srgrimes case 'h': 2631556Srgrimes prtheader = ws.ws_row > 5 ? ws.ws_row : 22; 2641556Srgrimes break; 2651556Srgrimes case 'j': 266109502Sjmallett parsefmt(jfmt, 0); 26790143Smarkm _fmt = 1; 2681556Srgrimes jfmt[0] = '\0'; 2691556Srgrimes break; 2701556Srgrimes case 'L': 2711556Srgrimes showkey(); 2721556Srgrimes exit(0); 2731556Srgrimes case 'l': 274109502Sjmallett parsefmt(lfmt, 0); 27590143Smarkm _fmt = 1; 2761556Srgrimes lfmt[0] = '\0'; 2771556Srgrimes break; 2781556Srgrimes case 'M': 2791556Srgrimes memf = optarg; 28037317Sphk dropgid = 1; 2811556Srgrimes break; 2821556Srgrimes case 'm': 2831556Srgrimes sortby = SORTMEM; 2841556Srgrimes break; 2851556Srgrimes case 'N': 2861556Srgrimes nlistf = optarg; 28737317Sphk dropgid = 1; 2881556Srgrimes break; 2891556Srgrimes case 'O': 290109502Sjmallett parsefmt(o1, 1); 291109502Sjmallett parsefmt(optarg, 1); 292109502Sjmallett parsefmt(o2, 1); 2931556Srgrimes o1[0] = o2[0] = '\0'; 29490143Smarkm _fmt = 1; 2951556Srgrimes break; 2961556Srgrimes case 'o': 297109502Sjmallett parsefmt(optarg, 1); 29890143Smarkm _fmt = 1; 2991556Srgrimes break; 3001556Srgrimes case 'p': 301127499Sgad add_list(&pidlist, optarg); 302127499Sgad /* 303127499Sgad * Note: `-p' does not *set* xkeep, but any values 304127499Sgad * from pidlist are checked before xkeep is. That 305127499Sgad * way they are always matched, even if the user 306127499Sgad * specifies `-X'. 307127499Sgad */ 308127499Sgad nselectors++; 3091556Srgrimes break; 310127499Sgad#if 0 311127499Sgad case 'R': 312127597Sgad /*- 313127542Sgad * XXX - This un-standard option is still under 314127542Sgad * debate. This is what SUSv3 defines as 315127542Sgad * the `-U' option, and while it would be 316127542Sgad * nice to have, it could cause even more 317127542Sgad * confusion to implement it as `-R'. 318127542Sgad */ 319127499Sgad add_list(&ruidlist, optarg); 320127499Sgad xkeep_implied = 1; 321127499Sgad nselectors++; 322127499Sgad break; 323127499Sgad#endif 3241556Srgrimes case 'r': 3251556Srgrimes sortby = SORTCPU; 3261556Srgrimes break; 3271556Srgrimes case 'S': 3281556Srgrimes sumrusage = 1; 3291556Srgrimes break; 330127499Sgad#if 0 331127499Sgad case 's': 332127597Sgad /*- 333127542Sgad * XXX - This non-standard option is still under 334127542Sgad * debate. This *is* supported on Solaris, 335127542Sgad * Linux, and IRIX, but conflicts with `-s' 336127542Sgad * on NetBSD and maybe some older BSD's. 337127542Sgad */ 338127499Sgad add_list(&sesslist, optarg); 339127499Sgad xkeep_implied = 1; 340127499Sgad nselectors++; 341127499Sgad break; 342127499Sgad#endif 3431556Srgrimes case 'T': 3441556Srgrimes if ((optarg = ttyname(STDIN_FILENO)) == NULL) 3451556Srgrimes errx(1, "stdin: not a terminal"); 3461556Srgrimes /* FALLTHROUGH */ 347127499Sgad case 't': 348127499Sgad add_list(&ttylist, optarg); 349127499Sgad xkeep_implied = 1; 350127499Sgad nselectors++; 3511556Srgrimes break; 35213020Speter case 'U': 353127499Sgad /* This is what SUSv3 defines as the `-u' option. */ 354127499Sgad add_list(&uidlist, optarg); 355127499Sgad xkeep_implied = 1; 356127499Sgad nselectors++; 35713020Speter break; 3581556Srgrimes case 'u': 359109502Sjmallett parsefmt(ufmt, 0); 3601556Srgrimes sortby = SORTCPU; 36190143Smarkm _fmt = 1; 3621556Srgrimes ufmt[0] = '\0'; 3631556Srgrimes break; 3641556Srgrimes case 'v': 365109502Sjmallett parsefmt(vfmt, 0); 3661556Srgrimes sortby = SORTMEM; 36790143Smarkm _fmt = 1; 3681556Srgrimes vfmt[0] = '\0'; 3691556Srgrimes break; 3701556Srgrimes case 'w': 3711556Srgrimes if (wflag) 3721556Srgrimes termwidth = UNLIMITED; 3731556Srgrimes else if (termwidth < 131) 3741556Srgrimes termwidth = 131; 3751556Srgrimes wflag++; 3761556Srgrimes break; 377127499Sgad case 'X': 378127499Sgad /* 379127499Sgad * Note that `-X' and `-x' are not standard "selector" 380127499Sgad * options. For most selector-options, we check *all* 381127499Sgad * processes to see if any are matched by the given 382127499Sgad * value(s). After we have a set of all the matched 383127499Sgad * processes, then `-X' and `-x' govern whether we 384127499Sgad * modify that *matched* set for processes which do 385127499Sgad * not have a controlling terminal. `-X' causes 386127499Sgad * those processes to be deleted from the matched 387127499Sgad * set, while `-x' causes them to be kept. 388127499Sgad */ 389127499Sgad xkeep = 0; 390127499Sgad break; 3911556Srgrimes case 'x': 392127499Sgad xkeep = 1; 3931556Srgrimes break; 39486922Sgreen case 'Z': 395109502Sjmallett parsefmt(Zfmt, 0); 39686922Sgreen Zfmt[0] = '\0'; 39786922Sgreen break; 3981556Srgrimes case '?': 3991556Srgrimes default: 4001556Srgrimes usage(); 4011556Srgrimes } 4021556Srgrimes argc -= optind; 4031556Srgrimes argv += optind; 404129914Sgad 405129914Sgad /* 406129914Sgad * If there arguments after processing all the options, attempt 407129914Sgad * to treat them as a list of process ids. 408129914Sgad */ 409129914Sgad while (*argv) { 410129914Sgad if (!isdigitch(**argv)) 411129914Sgad break; 412129914Sgad add_list(&pidlist, *argv); 413129914Sgad argv++; 414129914Sgad } 415129914Sgad if (*argv) { 416129914Sgad fprintf(stderr, "%s: illegal argument: %s\n", 417129914Sgad getprogname(), *argv); 418129914Sgad usage(); 419129914Sgad } 420127499Sgad if (optfatal) 421127542Sgad exit(1); /* Error messages already printed. */ 422127542Sgad if (xkeep < 0) /* Neither -X nor -x was specified. */ 423127499Sgad xkeep = xkeep_implied; 424127499Sgad 425129914Sgad 4261556Srgrimes /* 4271556Srgrimes * Discard setgid privileges if not the running kernel so that bad 4281556Srgrimes * guys can't print interesting stuff from kernel memory. 4291556Srgrimes */ 430129967Sgad if (dropgid) 4311556Srgrimes setgid(getgid()); 4321556Srgrimes 43389909Sru kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf); 4341556Srgrimes if (kd == 0) 4351556Srgrimes errx(1, "%s", errbuf); 4361556Srgrimes 43790143Smarkm if (!_fmt) 438109502Sjmallett parsefmt(dfmt, 0); 4391556Srgrimes 440127499Sgad if (nselectors == 0) { 441127823Sgad uidlist.l.ptr = malloc(sizeof(uid_t)); 442127823Sgad if (uidlist.l.ptr == NULL) 44397877Sjmallett errx(1, "malloc failed"); 444127499Sgad nselectors = 1; 445127499Sgad uidlist.count = uidlist.maxcount = 1; 446127823Sgad *uidlist.l.uids = getuid(); 44766377Sbrian } 4481556Srgrimes 4491556Srgrimes /* 4501556Srgrimes * scan requested variables, noting what structures are needed, 45153170Skris * and adjusting header widths as appropriate. 4521556Srgrimes */ 4531556Srgrimes scanvars(); 454127499Sgad 4551556Srgrimes /* 456127499Sgad * Get process list. If the user requested just one selector- 457127499Sgad * option, then kvm_getprocs can be asked to return just those 458127499Sgad * processes. Otherwise, have it return all processes, and 459127499Sgad * then this routine will search that full list and select the 460127499Sgad * processes which match any of the user's selector-options. 4611556Srgrimes */ 462127499Sgad what = showthreads != 0 ? KERN_PROC_ALL : KERN_PROC_PROC; 463127499Sgad flag = 0; 464127499Sgad if (nselectors == 1) { 465129600Sgad if (gidlist.count == 1) { 466129600Sgad what = KERN_PROC_RGID | showthreads; 467129600Sgad flag = *gidlist.l.gids; 468129600Sgad nselectors = 0; 469129600Sgad } else if (pgrplist.count == 1) { 470127499Sgad what = KERN_PROC_PGRP | showthreads; 471127823Sgad flag = *pgrplist.l.pids; 472127499Sgad nselectors = 0; 473127499Sgad } else if (pidlist.count == 1) { 474127499Sgad what = KERN_PROC_PID | showthreads; 475127823Sgad flag = *pidlist.l.pids; 476127499Sgad nselectors = 0; 477127499Sgad } else if (ruidlist.count == 1) { 478127499Sgad what = KERN_PROC_RUID | showthreads; 479127823Sgad flag = *ruidlist.l.uids; 480127499Sgad nselectors = 0; 481127499Sgad } else if (sesslist.count == 1) { 482127499Sgad what = KERN_PROC_SESSION | showthreads; 483127823Sgad flag = *sesslist.l.pids; 484127499Sgad nselectors = 0; 485127499Sgad } else if (ttylist.count == 1) { 486127499Sgad what = KERN_PROC_TTY | showthreads; 487127823Sgad flag = *ttylist.l.ttys; 488127499Sgad nselectors = 0; 489127499Sgad } else if (uidlist.count == 1) { 490127499Sgad what = KERN_PROC_UID | showthreads; 491127823Sgad flag = *uidlist.l.uids; 492127499Sgad nselectors = 0; 493127499Sgad } else if (all) { 494127499Sgad /* No need for this routine to select processes. */ 495127499Sgad nselectors = 0; 496127499Sgad } 4971556Srgrimes } 498126127Sdeischen 4991556Srgrimes /* 5001556Srgrimes * select procs 5011556Srgrimes */ 502127499Sgad nentries = -1; 503127149Sgad kp = kvm_getprocs(kd, what, flag, &nentries); 504127544Sgad if ((kp == NULL && nentries > 0) || (kp != NULL && nentries < 0)) 5051556Srgrimes errx(1, "%s", kvm_geterr(kd)); 506127499Sgad nkept = 0; 507127149Sgad if (nentries > 0) { 508127149Sgad if ((kinfo = malloc(nentries * sizeof(*kinfo))) == NULL) 509127149Sgad errx(1, "malloc failed"); 510127149Sgad for (i = nentries; --i >= 0; ++kp) { 511127499Sgad /* 512127499Sgad * If the user specified multiple selection-criteria, 513127499Sgad * then keep any process matched by the inclusive OR 514127499Sgad * of all the selection-criteria given. 515127499Sgad */ 516127499Sgad if (pidlist.count > 0) { 517127499Sgad for (elem = 0; elem < pidlist.count; elem++) 518127823Sgad if (kp->ki_pid == pidlist.l.pids[elem]) 519127499Sgad goto keepit; 520127499Sgad } 521127499Sgad /* 522127499Sgad * Note that we had to process pidlist before 523127499Sgad * filtering out processes which do not have 524127499Sgad * a controlling terminal. 525127499Sgad */ 526127499Sgad if (xkeep == 0) { 527127499Sgad if ((kp->ki_tdev == NODEV || 528127499Sgad (kp->ki_flag & P_CONTROLT) == 0)) 529127499Sgad continue; 530127499Sgad } 531127499Sgad if (nselectors == 0) 532127499Sgad goto keepit; 533127499Sgad if (gidlist.count > 0) { 534127499Sgad for (elem = 0; elem < gidlist.count; elem++) 535127823Sgad if (kp->ki_rgid == gidlist.l.gids[elem]) 536127499Sgad goto keepit; 537127499Sgad } 538127499Sgad if (pgrplist.count > 0) { 539127499Sgad for (elem = 0; elem < pgrplist.count; elem++) 540127823Sgad if (kp->ki_pgid == 541127823Sgad pgrplist.l.pids[elem]) 542127499Sgad goto keepit; 543127499Sgad } 544127499Sgad if (ruidlist.count > 0) { 545127499Sgad for (elem = 0; elem < ruidlist.count; elem++) 546127823Sgad if (kp->ki_ruid == 547127823Sgad ruidlist.l.uids[elem]) 548127499Sgad goto keepit; 549127499Sgad } 550127499Sgad if (sesslist.count > 0) { 551127499Sgad for (elem = 0; elem < sesslist.count; elem++) 552127823Sgad if (kp->ki_sid == sesslist.l.pids[elem]) 553127499Sgad goto keepit; 554127499Sgad } 555127499Sgad if (ttylist.count > 0) { 556127499Sgad for (elem = 0; elem < ttylist.count; elem++) 557127823Sgad if (kp->ki_tdev == ttylist.l.ttys[elem]) 558127499Sgad goto keepit; 559127499Sgad } 560127499Sgad if (uidlist.count > 0) { 561127499Sgad for (elem = 0; elem < uidlist.count; elem++) 562127823Sgad if (kp->ki_uid == uidlist.l.uids[elem]) 563127499Sgad goto keepit; 564127499Sgad } 565127499Sgad /* 566127499Sgad * This process did not match any of the user's 567127499Sgad * selector-options, so skip the process. 568127499Sgad */ 569127499Sgad continue; 570127499Sgad 571127499Sgad keepit: 572127499Sgad kinfo[nkept].ki_p = kp; 573127149Sgad if (needuser) 574127499Sgad saveuser(&kinfo[nkept]); 575127499Sgad dynsizevars(&kinfo[nkept]); 576127499Sgad nkept++; 577127149Sgad } 5781556Srgrimes } 57925271Sjkh 58025271Sjkh sizevars(); 58125271Sjkh 5821556Srgrimes /* 5831556Srgrimes * print header 5841556Srgrimes */ 5851556Srgrimes printheader(); 586127499Sgad if (nkept == 0) 58762803Swill exit(1); 588127499Sgad 5891556Srgrimes /* 5901556Srgrimes * sort proc list 5911556Srgrimes */ 592127499Sgad qsort(kinfo, nkept, sizeof(KINFO), pscomp); 5931556Srgrimes /* 594127499Sgad * For each process, call each variable output function. 5951556Srgrimes */ 596127499Sgad for (i = lineno = 0; i < nkept; i++) { 5971556Srgrimes for (vent = vhead; vent; vent = vent->next) { 5981556Srgrimes (vent->var->oproc)(&kinfo[i], vent); 5991556Srgrimes if (vent->next != NULL) 6001556Srgrimes (void)putchar(' '); 6011556Srgrimes } 6021556Srgrimes (void)putchar('\n'); 6031556Srgrimes if (prtheader && lineno++ == prtheader - 4) { 6041556Srgrimes (void)putchar('\n'); 6051556Srgrimes printheader(); 6061556Srgrimes lineno = 0; 6071556Srgrimes } 6081556Srgrimes } 609127499Sgad free_list(&gidlist); 610127499Sgad free_list(&pidlist); 611127499Sgad free_list(&pgrplist); 612127499Sgad free_list(&ruidlist); 613127499Sgad free_list(&sesslist); 614127499Sgad free_list(&ttylist); 615127499Sgad free_list(&uidlist); 61666377Sbrian 6171556Srgrimes exit(eval); 6181556Srgrimes} 6191556Srgrimes 620127499Sgadstatic int 621127499Sgadaddelem_gid(struct listinfo *inf, const char *elem) 622127499Sgad{ 623127499Sgad struct group *grp; 624127499Sgad const char *nameorID; 625127499Sgad char *endp; 626127602Sgad u_long bigtemp; 627127499Sgad 628127499Sgad if (*elem == '\0' || strlen(elem) >= MAXLOGNAME) { 629127499Sgad if (*elem == '\0') 630127499Sgad warnx("Invalid (zero-length) %s name", inf->lname); 631127499Sgad else 632127499Sgad warnx("%s name too long: %s", inf->lname, elem); 633127499Sgad optfatal = 1; 634127542Sgad return (0); /* Do not add this value. */ 635127499Sgad } 636127499Sgad 637127499Sgad /* 638127499Sgad * SUSv3 states that `ps -G grouplist' should match "real-group 639127499Sgad * ID numbers", and does not mention group-names. I do want to 640127499Sgad * also support group-names, so this tries for a group-id first, 641127499Sgad * and only tries for a name if that doesn't work. This is the 642127499Sgad * opposite order of what is done in addelem_uid(), but in 643127499Sgad * practice the order would only matter for group-names which 644127499Sgad * are all-numeric. 645127499Sgad */ 646127499Sgad grp = NULL; 647127499Sgad nameorID = "named"; 648127499Sgad errno = 0; 649127602Sgad bigtemp = strtoul(elem, &endp, 10); 650127602Sgad if (errno == 0 && *endp == '\0' && bigtemp <= GID_MAX) { 651127499Sgad nameorID = "name or ID matches"; 652127602Sgad grp = getgrgid((gid_t)bigtemp); 653127499Sgad } 654127499Sgad if (grp == NULL) 655127499Sgad grp = getgrnam(elem); 656127499Sgad if (grp == NULL) { 657127499Sgad warnx("No %s %s '%s'", inf->lname, nameorID, elem); 658127499Sgad optfatal = 1; 659129967Sgad return (0); 660127499Sgad } 661127499Sgad if (inf->count >= inf->maxcount) 662127499Sgad expand_list(inf); 663127823Sgad inf->l.gids[(inf->count)++] = grp->gr_gid; 664127499Sgad return (1); 665127499Sgad} 666127499Sgad 667127597Sgad#define BSD_PID_MAX 99999 /* Copy of PID_MAX from sys/proc.h. */ 668127499Sgadstatic int 669127499Sgadaddelem_pid(struct listinfo *inf, const char *elem) 670127149Sgad{ 671127539Sgad char *endp; 672127149Sgad long tempid; 673127149Sgad 674129917Sgad if (*elem == '\0') { 675129917Sgad warnx("Invalid (zero-length) process id"); 676129917Sgad optfatal = 1; 677129917Sgad return (0); /* Do not add this value. */ 678127149Sgad } 679127149Sgad 680129952Sgad errno = 0; 681129952Sgad tempid = strtol(elem, &endp, 10); 682129952Sgad if (*endp != '\0' || tempid < 0 || elem == endp) { 683129952Sgad warnx("Invalid %s: %s", inf->lname, elem); 684129952Sgad errno = ERANGE; 685129952Sgad } else if (errno != 0 || tempid > BSD_PID_MAX) { 686129952Sgad warnx("%s too large: %s", inf->lname, elem); 687129952Sgad errno = ERANGE; 688129952Sgad } 689129952Sgad if (errno == ERANGE) { 690129952Sgad optfatal = 1; 691129967Sgad return (0); 692129952Sgad } 693127499Sgad if (inf->count >= inf->maxcount) 694127499Sgad expand_list(inf); 695127823Sgad inf->l.pids[(inf->count)++] = tempid; 696127499Sgad return (1); 697127499Sgad} 698127499Sgad#undef BSD_PID_MAX 699127149Sgad 700127499Sgadstatic int 701127499Sgadaddelem_tty(struct listinfo *inf, const char *elem) 702127499Sgad{ 703127539Sgad const char *ttypath; 704127539Sgad struct stat sb; 705127499Sgad char pathbuf[PATH_MAX]; 706127499Sgad 707127499Sgad if (strcmp(elem, "co") == 0) 708127499Sgad ttypath = strdup(_PATH_CONSOLE); 709127499Sgad else if (*elem == '/') 710127499Sgad ttypath = elem; 711127499Sgad else { 712127499Sgad strlcpy(pathbuf, _PATH_TTY, sizeof(pathbuf)); 713127499Sgad strlcat(pathbuf, elem, sizeof(pathbuf)); 714127499Sgad ttypath = pathbuf; 715127499Sgad } 716127499Sgad 717127499Sgad if (stat(ttypath, &sb) == -1) { 718127499Sgad warn("%s", ttypath); 719127499Sgad optfatal = 1; 720129967Sgad return (0); 721127499Sgad } 722127499Sgad if (!S_ISCHR(sb.st_mode)) { 723127499Sgad warn("%s: Not a terminal", ttypath); 724127499Sgad optfatal = 1; 725129967Sgad return (0); 726127499Sgad } 727127499Sgad if (inf->count >= inf->maxcount) 728127499Sgad expand_list(inf); 729127823Sgad inf->l.ttys[(inf->count)++] = sb.st_rdev; 730127499Sgad return (1); 731127149Sgad} 732127149Sgad 733127499Sgadstatic int 734127499Sgadaddelem_uid(struct listinfo *inf, const char *elem) 73566377Sbrian{ 73666377Sbrian struct passwd *pwd; 737127539Sgad char *endp; 738127602Sgad u_long bigtemp; 73966377Sbrian 740127499Sgad if (*elem == '\0' || strlen(elem) >= MAXLOGNAME) { 741127499Sgad if (*elem == '\0') 742127499Sgad warnx("Invalid (zero-length) %s name", inf->lname); 743127499Sgad else 744127499Sgad warnx("%s name too long: %s", inf->lname, elem); 745127499Sgad optfatal = 1; 746127542Sgad return (0); /* Do not add this value. */ 747127499Sgad } 74866377Sbrian 749127499Sgad pwd = getpwnam(elem); 750127499Sgad if (pwd == NULL) { 751127499Sgad errno = 0; 752127602Sgad bigtemp = strtoul(elem, &endp, 10); 753127602Sgad if (errno != 0 || *endp != '\0' || bigtemp > UID_MAX) 754127499Sgad warnx("No %s named '%s'", inf->lname, elem); 755127499Sgad else { 756127499Sgad /* The string is all digits, so it might be a userID. */ 757127602Sgad pwd = getpwuid((uid_t)bigtemp); 758127499Sgad if (pwd == NULL) 759127499Sgad warnx("No %s name or ID matches '%s'", 760127499Sgad inf->lname, elem); 76166377Sbrian } 762127499Sgad } 763127499Sgad if (pwd == NULL) { 764127509Sgad /* 765127509Sgad * These used to be treated as minor warnings (and the 766127509Sgad * option was simply ignored), but now they are fatal 767127509Sgad * errors (and the command will be aborted). 768127509Sgad */ 769127509Sgad optfatal = 1; 770129967Sgad return (0); 771127499Sgad } 772127499Sgad if (inf->count >= inf->maxcount) 773127499Sgad expand_list(inf); 774127823Sgad inf->l.uids[(inf->count)++] = pwd->pw_uid; 775127499Sgad return (1); 776127499Sgad} 777127499Sgad 778127499Sgadstatic void 779127499Sgadadd_list(struct listinfo *inf, const char *argp) 780127499Sgad{ 781127499Sgad const char *savep; 782127499Sgad char *cp, *endp; 783127499Sgad int toolong; 784127539Sgad char elemcopy[PATH_MAX]; 785127499Sgad 786129917Sgad if (*argp == 0) 787129967Sgad inf->addelem(inf, elemcopy); 788127499Sgad while (*argp != '\0') { 789127499Sgad while (*argp != '\0' && strchr(W_SEP, *argp) != NULL) 790127499Sgad argp++; 791127499Sgad savep = argp; 792127499Sgad toolong = 0; 793127499Sgad cp = elemcopy; 794127499Sgad if (strchr(T_SEP, *argp) == NULL) { 795127499Sgad endp = elemcopy + sizeof(elemcopy) - 1; 796127499Sgad while (*argp != '\0' && cp <= endp && 797127499Sgad strchr(W_SEP T_SEP, *argp) == NULL) 798127499Sgad *cp++ = *argp++; 799127499Sgad if (cp > endp) 800127499Sgad toolong = 1; 80166377Sbrian } 802127499Sgad if (!toolong) { 803127499Sgad *cp = '\0'; 804127542Sgad /* 805129953Sgad * Add this single element to the given list. 806127542Sgad */ 807127499Sgad inf->addelem(inf, elemcopy); 808127499Sgad } else { 809127499Sgad /* 810127499Sgad * The string is too long to copy. Find the end 811127499Sgad * of the string to print out the warning message. 812127499Sgad */ 813127499Sgad while (*argp != '\0' && strchr(W_SEP T_SEP, 814127499Sgad *argp) == NULL) 815127499Sgad argp++; 816127499Sgad warnx("Value too long: %.*s", (int)(argp - savep), 817127499Sgad savep); 818127499Sgad optfatal = 1; 81966377Sbrian } 820127499Sgad /* 821127499Sgad * Skip over any number of trailing whitespace characters, 822127499Sgad * but only one (at most) trailing element-terminating 823127499Sgad * character. 824127499Sgad */ 825127499Sgad while (*argp != '\0' && strchr(W_SEP, *argp) != NULL) 826127499Sgad argp++; 827127499Sgad if (*argp != '\0' && strchr(T_SEP, *argp) != NULL) { 828127499Sgad argp++; 829127499Sgad /* Catch case where string ended with a comma. */ 830127499Sgad if (*argp == '\0') 831127499Sgad inf->addelem(inf, argp); 832127499Sgad } 83366377Sbrian } 834127499Sgad} 83566377Sbrian 836127499Sgadstatic void * 837127499Sgadexpand_list(struct listinfo *inf) 838127499Sgad{ 839127539Sgad void *newlist; 840127499Sgad int newmax; 84166377Sbrian 842127499Sgad newmax = (inf->maxcount + 1) << 1; 843127823Sgad newlist = realloc(inf->l.ptr, newmax * inf->elemsize); 844127499Sgad if (newlist == NULL) { 845127823Sgad free(inf->l.ptr); 846129967Sgad errx(1, "realloc to %d %ss failed", newmax, inf->lname); 847127499Sgad } 848127499Sgad inf->maxcount = newmax; 849127823Sgad inf->l.ptr = newlist; 850127499Sgad 851127499Sgad return (newlist); 85266377Sbrian} 85366377Sbrian 854127499Sgadstatic void 855127499Sgadfree_list(struct listinfo *inf) 856127499Sgad{ 857127499Sgad 858127499Sgad inf->count = inf->elemsize = inf->maxcount = 0; 859127823Sgad if (inf->l.ptr != NULL) 860127823Sgad free(inf->l.ptr); 861127499Sgad inf->addelem = NULL; 862127499Sgad inf->lname = NULL; 863127823Sgad inf->l.ptr = NULL; 864127499Sgad} 865127499Sgad 866127499Sgadstatic void 867127499Sgadinit_list(struct listinfo *inf, addelem_rtn artn, int elemsize, 868127499Sgad const char *lname) 869127499Sgad{ 870127499Sgad 871127499Sgad inf->count = inf->maxcount = 0; 872127499Sgad inf->elemsize = elemsize; 873127499Sgad inf->addelem = artn; 874127499Sgad inf->lname = lname; 875127823Sgad inf->l.ptr = NULL; 876127499Sgad} 877127499Sgad 878109502SjmallettVARENT * 879109502Sjmallettfind_varentry(VAR *v) 880109502Sjmallett{ 881109502Sjmallett struct varent *vent; 882109502Sjmallett 883109502Sjmallett for (vent = vhead; vent; vent = vent->next) { 884109502Sjmallett if (strcmp(vent->var->name, v->name) == 0) 885109502Sjmallett return vent; 886109502Sjmallett } 887109502Sjmallett return NULL; 888109502Sjmallett} 889109502Sjmallett 8901556Srgrimesstatic void 89190110Simpscanvars(void) 8921556Srgrimes{ 8931556Srgrimes struct varent *vent; 8941556Srgrimes VAR *v; 89525271Sjkh 89625271Sjkh for (vent = vhead; vent; vent = vent->next) { 89725271Sjkh v = vent->var; 89825271Sjkh if (v->flag & DSIZ) { 89925271Sjkh v->dwidth = v->width; 90025271Sjkh v->width = 0; 90125271Sjkh } 90225271Sjkh if (v->flag & USER) 90325271Sjkh needuser = 1; 90425271Sjkh if (v->flag & COMM) 90525271Sjkh needcomm = 1; 90625271Sjkh } 90725271Sjkh} 90825271Sjkh 90925271Sjkhstatic void 91090110Simpdynsizevars(KINFO *ki) 91125271Sjkh{ 91225271Sjkh struct varent *vent; 91325271Sjkh VAR *v; 9141556Srgrimes int i; 9151556Srgrimes 9161556Srgrimes for (vent = vhead; vent; vent = vent->next) { 9171556Srgrimes v = vent->var; 91825271Sjkh if (!(v->flag & DSIZ)) 91925271Sjkh continue; 92025271Sjkh i = (v->sproc)( ki); 92125271Sjkh if (v->width < i) 92225271Sjkh v->width = i; 92325271Sjkh if (v->width > v->dwidth) 92425271Sjkh v->width = v->dwidth; 92525271Sjkh } 92625271Sjkh} 92725271Sjkh 92825271Sjkhstatic void 92990110Simpsizevars(void) 93025271Sjkh{ 93125271Sjkh struct varent *vent; 93225271Sjkh VAR *v; 93325271Sjkh int i; 93425271Sjkh 93525271Sjkh for (vent = vhead; vent; vent = vent->next) { 93625271Sjkh v = vent->var; 937109504Sjmallett i = strlen(vent->header); 9381556Srgrimes if (v->width < i) 9391556Srgrimes v->width = i; 9401556Srgrimes totwidth += v->width + 1; /* +1 for space */ 9411556Srgrimes } 9421556Srgrimes totwidth--; 9431556Srgrimes} 9441556Srgrimes 94590143Smarkmstatic const char * 94690110Simpfmt(char **(*fn)(kvm_t *, const struct kinfo_proc *, int), KINFO *ki, 947127542Sgad char *comm, int maxlen) 9481556Srgrimes{ 94990143Smarkm const char *s; 9501556Srgrimes 95190143Smarkm s = fmt_argv((*fn)(kd, ki->ki_p, termwidth), comm, maxlen); 9521556Srgrimes return (s); 9531556Srgrimes} 9541556Srgrimes 95571578Sjhb#define UREADOK(ki) (forceuread || (ki->ki_p->ki_sflag & PS_INMEM)) 95631552Sdyson 9571556Srgrimesstatic void 95890110Simpsaveuser(KINFO *ki) 9591556Srgrimes{ 9601556Srgrimes 96171578Sjhb if (ki->ki_p->ki_sflag & PS_INMEM) { 9621556Srgrimes /* 9631556Srgrimes * The u-area might be swapped out, and we can't get 9641556Srgrimes * at it because we have a crashdump and no swap. 9651556Srgrimes * If it's here fill in these fields, otherwise, just 9661556Srgrimes * leave them 0. 9671556Srgrimes */ 96869896Smckusick ki->ki_valid = 1; 9691556Srgrimes } else 97069896Smckusick ki->ki_valid = 0; 9711556Srgrimes /* 9721556Srgrimes * save arguments if needed 9731556Srgrimes */ 97469896Smckusick if (needcomm && (UREADOK(ki) || (ki->ki_p->ki_args != NULL))) { 97590143Smarkm ki->ki_args = strdup(fmt(kvm_getargv, ki, ki->ki_p->ki_comm, 97690143Smarkm MAXCOMLEN)); 97731552Sdyson } else if (needcomm) { 97890143Smarkm asprintf(&ki->ki_args, "(%s)", ki->ki_p->ki_comm); 97953276Speter } else { 98053276Speter ki->ki_args = NULL; 98153276Speter } 98253276Speter if (needenv && UREADOK(ki)) { 98390143Smarkm ki->ki_env = strdup(fmt(kvm_getenvv, ki, (char *)NULL, 0)); 98453276Speter } else if (needenv) { 98553276Speter ki->ki_env = malloc(3); 98653276Speter strcpy(ki->ki_env, "()"); 98753276Speter } else { 98853276Speter ki->ki_env = NULL; 98953276Speter } 9901556Srgrimes} 9911556Srgrimes 9921556Srgrimesstatic int 99390110Simppscomp(const void *a, const void *b) 9941556Srgrimes{ 995127596Sgad const KINFO *ka, *kb; 996127596Sgad double cpua, cpub; 997127596Sgad segsz_t sizea, sizeb; 9981556Srgrimes 999127596Sgad ka = a; 1000127596Sgad kb = b; 1001127596Sgad /* SORTCPU and SORTMEM are sorted in descending order. */ 1002127596Sgad if (sortby == SORTCPU) { 1003127596Sgad cpua = getpcpu(ka); 1004127596Sgad cpub = getpcpu(kb); 1005127596Sgad if (cpua < cpub) 1006127596Sgad return (1); 1007127596Sgad if (cpua > cpub) 1008127596Sgad return (-1); 1009127596Sgad } 1010127596Sgad if (sortby == SORTMEM) { 1011127596Sgad sizea = ka->ki_p->ki_tsize + ka->ki_p->ki_dsize + 1012127596Sgad ka->ki_p->ki_ssize; 1013127596Sgad sizeb = kb->ki_p->ki_tsize + kb->ki_p->ki_dsize + 1014127596Sgad kb->ki_p->ki_ssize; 1015127596Sgad if (sizea < sizeb) 1016127596Sgad return (1); 1017127596Sgad if (sizea > sizeb) 1018127596Sgad return (-1); 1019127596Sgad } 1020127596Sgad /* 1021127596Sgad * TTY's are sorted in ascending order, except that all NODEV 1022127596Sgad * processes come before all processes with a device. 1023127596Sgad */ 1024127596Sgad if (ka->ki_p->ki_tdev == NODEV && kb->ki_p->ki_tdev != NODEV) 1025127596Sgad return (-1); 1026127596Sgad if (ka->ki_p->ki_tdev != NODEV && kb->ki_p->ki_tdev == NODEV) 1027127596Sgad return (1); 1028127596Sgad if (ka->ki_p->ki_tdev < kb->ki_p->ki_tdev) 1029127596Sgad return (-1); 1030127596Sgad if (ka->ki_p->ki_tdev > kb->ki_p->ki_tdev) 1031127596Sgad return (1); 1032127596Sgad /* PID's are sorted in ascending order. */ 1033127596Sgad if (ka->ki_p->ki_pid < kb->ki_p->ki_pid) 1034127596Sgad return (-1); 1035127596Sgad if (ka->ki_p->ki_pid > kb->ki_p->ki_pid) 1036127596Sgad return (1); 1037127596Sgad return (0); 10381556Srgrimes} 10391556Srgrimes 10401556Srgrimes/* 10411556Srgrimes * ICK (all for getopt), would rather hide the ugliness 10421556Srgrimes * here than taint the main code. 10431556Srgrimes * 10441556Srgrimes * ps foo -> ps -foo 10451556Srgrimes * ps 34 -> ps -p34 10461556Srgrimes * 10471556Srgrimes * The old convention that 't' with no trailing tty arg means the users 10481556Srgrimes * tty, is only supported if argv[1] doesn't begin with a '-'. This same 10491556Srgrimes * feature is available with the option 'T', which takes no argument. 10501556Srgrimes */ 10511556Srgrimesstatic char * 1052129915Sgadkludge_oldps_options(const char *optlist, char *origval, const char *nextarg) 10531556Srgrimes{ 10541556Srgrimes size_t len; 1055129914Sgad char *argp, *cp, *newopts, *ns, *optp, *pidp; 10561556Srgrimes 1057102886Sjmallett /* 1058129914Sgad * See if the original value includes any option which takes an 1059129914Sgad * argument (and will thus use up the remainder of the string). 1060102886Sjmallett */ 1061129914Sgad argp = NULL; 1062129914Sgad if (optlist != NULL) { 1063129914Sgad for (cp = origval; *cp != '\0'; cp++) { 1064129914Sgad optp = strchr(optlist, *cp); 1065129914Sgad if ((optp != NULL) && *(optp + 1) == ':') { 1066129914Sgad argp = cp; 1067129914Sgad break; 1068129914Sgad } 1069129914Sgad } 1070129914Sgad } 1071129914Sgad if (argp != NULL && *origval == '-') 1072129914Sgad return (origval); 1073102886Sjmallett 10741556Srgrimes /* 10751556Srgrimes * if last letter is a 't' flag with no argument (in the context 10761556Srgrimes * of the oldps options -- option string NOT starting with a '-' -- 10771556Srgrimes * then convert to 'T' (meaning *this* terminal, i.e. ttyname(0)). 107881743Sbrian * 1079129634Sgad * However, if a flag accepting a string argument is found earlier 1080129634Sgad * in the option string (including a possible `t' flag), then the 1081129634Sgad * remainder of the string must be the argument to that flag; so 1082129914Sgad * do not modify that argument. Note that a trailing `t' would 1083129914Sgad * cause argp to be set, if argp was not already set by some 1084129914Sgad * earlier option. 10851556Srgrimes */ 1086129914Sgad len = strlen(origval); 1087129914Sgad cp = origval + len - 1; 1088129914Sgad pidp = NULL; 1089129915Sgad if (*cp == 't' && *origval != '-' && cp == argp) { 1090129915Sgad if (nextarg == NULL || *nextarg == '-' || isdigitch(*nextarg)) 1091129915Sgad *cp = 'T'; 1092129915Sgad } else if (argp == NULL) { 10931556Srgrimes /* 1094129914Sgad * The original value did not include any option which takes 1095129914Sgad * an argument (and that would include `p' and `t'), so check 1096129914Sgad * the value for trailing number, or comma-separated list of 1097129914Sgad * numbers, which we will treat as a pid request. 10981556Srgrimes */ 1099129914Sgad if (isdigitch(*cp)) { 1100129914Sgad while (cp >= origval && (*cp == ',' || isdigitch(*cp))) 1101129914Sgad --cp; 1102129914Sgad pidp = cp + 1; 1103129914Sgad } 11041556Srgrimes } 1105129914Sgad 11061556Srgrimes /* 1107129914Sgad * If nothing needs to be added to the string, then return 1108129914Sgad * the "original" (although possibly modified) value. 11091556Srgrimes */ 1110129914Sgad if (*origval == '-' && pidp == NULL) 1111129914Sgad return (origval); 1112129914Sgad 1113129914Sgad /* 1114129914Sgad * Create a copy of the string to add '-' and/or 'p' to the 1115129914Sgad * original value. 1116129914Sgad */ 1117129914Sgad if ((newopts = ns = malloc(len + 3)) == NULL) 1118129914Sgad errx(1, "malloc failed"); 1119129914Sgad 1120129914Sgad if (*origval != '-') 1121129914Sgad *ns++ = '-'; /* add option flag */ 1122129914Sgad 1123129914Sgad if (pidp == NULL) 1124129914Sgad strcpy(ns, origval); 1125129914Sgad else { 1126129914Sgad /* 1127129914Sgad * Copy everything before the pid string, add the `p', 1128129914Sgad * and then copy the pid string. 1129129914Sgad */ 1130129914Sgad len = pidp - origval; 1131129914Sgad memcpy(ns, origval, len); 1132129914Sgad ns += len; 11331556Srgrimes *ns++ = 'p'; 1134129914Sgad strcpy(ns, pidp); 1135129914Sgad } 11361556Srgrimes 11371556Srgrimes return (newopts); 11381556Srgrimes} 11391556Srgrimes 11401556Srgrimesstatic void 114190110Simpusage(void) 11421556Srgrimes{ 1143127507Sgad#define SINGLE_OPTS "[-aC" OPT_LAZY_f "HhjlmrSTuvwXxZ]" 11441556Srgrimes 1145127499Sgad (void)fprintf(stderr, "%s\n%s\n%s\n%s\n", 1146127507Sgad "usage: ps " SINGLE_OPTS " [-G gid[,gid]] [-O|o fmt]", 1147127499Sgad " [-p pid[,pid]] [-t tty[,tty]] [-U user[,user]]", 1148127499Sgad " [-M core] [-N system]", 114926465Scharnier " ps [-L]"); 11501556Srgrimes exit(1); 11511556Srgrimes} 1152