ps.c revision 137670
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 137670 2004-11-13 17:12:22Z ru $"); 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/* 88129971Sgad * isdigit takes an `int', but expects values in the range of unsigned char. 89129971Sgad * This wrapper ensures that values from a 'char' end up in the correct range. 90129914Sgad */ 91129971Sgad#define isdigitch(Anychar) isdigit((u_char)(Anychar)) 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 101130999Sgadstruct velisthead varlist = STAILQ_HEAD_INITIALIZER(varlist); 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; 169130816Sgad KINFO *next_KINFO; 1701556Srgrimes struct varent *vent; 1711556Srgrimes struct winsize ws; 172129914Sgad const char *nlistf, *memf; 173127539Sgad char *cols; 174137670Sru int all, ch, elem, flag, _fmt, i, lineno; 175129914Sgad int nentries, nkept, nselectors; 176127499Sgad int prtheader, showthreads, wflag, what, xkeep, xkeep_implied; 17790143Smarkm char errbuf[_POSIX2_LINE_MAX]; 1781556Srgrimes 17911809Sache (void) setlocale(LC_ALL, ""); 180127542Sgad time(&now); /* Used by routines in print.c. */ 18111809Sache 18297804Stjr if ((cols = getenv("COLUMNS")) != NULL && *cols != '\0') 18397804Stjr termwidth = atoi(cols); 18497804Stjr else if ((ioctl(STDOUT_FILENO, TIOCGWINSZ, (char *)&ws) == -1 && 1851556Srgrimes ioctl(STDERR_FILENO, TIOCGWINSZ, (char *)&ws) == -1 && 1861556Srgrimes ioctl(STDIN_FILENO, TIOCGWINSZ, (char *)&ws) == -1) || 1871556Srgrimes ws.ws_col == 0) 1881556Srgrimes termwidth = 79; 1891556Srgrimes else 1901556Srgrimes termwidth = ws.ws_col - 1; 1911556Srgrimes 19298494Ssobomax /* 193129914Sgad * Hide a number of option-processing kludges in a separate routine, 194129914Sgad * to support some historical BSD behaviors, such as `ps axu'. 19598494Ssobomax */ 196129914Sgad if (argc > 1) 197129915Sgad argv[1] = kludge_oldps_options(PS_ARGS, argv[1], argv[2]); 1981556Srgrimes 199137670Sru all = _fmt = nselectors = optfatal = 0; 200127542Sgad prtheader = showthreads = wflag = xkeep_implied = 0; 201127542Sgad xkeep = -1; /* Neither -x nor -X. */ 202127499Sgad init_list(&gidlist, addelem_gid, sizeof(gid_t), "group"); 203127499Sgad init_list(&pgrplist, addelem_pid, sizeof(pid_t), "process group"); 204127499Sgad init_list(&pidlist, addelem_pid, sizeof(pid_t), "process id"); 205127499Sgad init_list(&ruidlist, addelem_uid, sizeof(uid_t), "ruser"); 206127499Sgad init_list(&sesslist, addelem_pid, sizeof(pid_t), "session id"); 207127499Sgad init_list(&ttylist, addelem_tty, sizeof(dev_t), "tty"); 208127499Sgad init_list(&uidlist, addelem_uid, sizeof(uid_t), "user"); 20989909Sru memf = nlistf = _PATH_DEVNULL; 21098494Ssobomax while ((ch = getopt(argc, argv, PS_ARGS)) != -1) 211129967Sgad switch ((char)ch) { 212127499Sgad case 'A': 213127499Sgad /* 214127499Sgad * Exactly the same as `-ax'. This has been 215127499Sgad * added for compatability with SUSv3, but for 216127499Sgad * now it will not be described in the man page. 217127499Sgad */ 218127499Sgad nselectors++; 219127499Sgad all = xkeep = 1; 220127499Sgad break; 2211556Srgrimes case 'a': 222127499Sgad nselectors++; 2231556Srgrimes all = 1; 2241556Srgrimes break; 22519068Speter case 'C': 22619068Speter rawcpu = 1; 22719068Speter break; 22819068Speter case 'c': 22919068Speter cflag = 1; 23019068Speter break; 2311556Srgrimes case 'e': /* XXX set ufmt */ 2321556Srgrimes needenv = 1; 2331556Srgrimes break; 234127506Sgad#ifdef LAZY_PS 235127506Sgad case 'f': 236127506Sgad if (getuid() == 0 || getgid() == 0) 237127542Sgad forceuread = 1; 238127506Sgad break; 239127506Sgad#endif 240127499Sgad case 'G': 241127499Sgad add_list(&gidlist, optarg); 242127499Sgad xkeep_implied = 1; 243127499Sgad nselectors++; 244127499Sgad break; 245127542Sgad case 'g': 246127499Sgad#if 0 247127597Sgad /*- 248127542Sgad * XXX - This SUSv3 behavior is still under debate 249127542Sgad * since it conflicts with the (undocumented) 250127542Sgad * `-g' option. So we skip it for now. 251127542Sgad */ 252127499Sgad add_list(&pgrplist, optarg); 253127499Sgad xkeep_implied = 1; 254127499Sgad nselectors++; 255127499Sgad break; 256127499Sgad#else 257127542Sgad /* The historical BSD-ish (from SunOS) behavior. */ 2581556Srgrimes break; /* no-op */ 259127499Sgad#endif 260116265Sscottl case 'H': 261126127Sdeischen showthreads = KERN_PROC_INC_THREAD; 262116265Sscottl break; 2631556Srgrimes case 'h': 2641556Srgrimes prtheader = ws.ws_row > 5 ? ws.ws_row : 22; 2651556Srgrimes break; 2661556Srgrimes case 'j': 267109502Sjmallett parsefmt(jfmt, 0); 26890143Smarkm _fmt = 1; 2691556Srgrimes jfmt[0] = '\0'; 2701556Srgrimes break; 2711556Srgrimes case 'L': 2721556Srgrimes showkey(); 2731556Srgrimes exit(0); 2741556Srgrimes case 'l': 275109502Sjmallett parsefmt(lfmt, 0); 27690143Smarkm _fmt = 1; 2771556Srgrimes lfmt[0] = '\0'; 2781556Srgrimes break; 2791556Srgrimes case 'M': 2801556Srgrimes memf = optarg; 2811556Srgrimes break; 2821556Srgrimes case 'm': 2831556Srgrimes sortby = SORTMEM; 2841556Srgrimes break; 2851556Srgrimes case 'N': 2861556Srgrimes nlistf = optarg; 2871556Srgrimes break; 2881556Srgrimes case 'O': 289109502Sjmallett parsefmt(o1, 1); 290109502Sjmallett parsefmt(optarg, 1); 291109502Sjmallett parsefmt(o2, 1); 2921556Srgrimes o1[0] = o2[0] = '\0'; 29390143Smarkm _fmt = 1; 2941556Srgrimes break; 2951556Srgrimes case 'o': 296109502Sjmallett parsefmt(optarg, 1); 29790143Smarkm _fmt = 1; 2981556Srgrimes break; 2991556Srgrimes case 'p': 300127499Sgad add_list(&pidlist, optarg); 301127499Sgad /* 302127499Sgad * Note: `-p' does not *set* xkeep, but any values 303127499Sgad * from pidlist are checked before xkeep is. That 304127499Sgad * way they are always matched, even if the user 305127499Sgad * specifies `-X'. 306127499Sgad */ 307127499Sgad nselectors++; 3081556Srgrimes break; 309127499Sgad#if 0 310127499Sgad case 'R': 311127597Sgad /*- 312127542Sgad * XXX - This un-standard option is still under 313127542Sgad * debate. This is what SUSv3 defines as 314127542Sgad * the `-U' option, and while it would be 315127542Sgad * nice to have, it could cause even more 316127542Sgad * confusion to implement it as `-R'. 317127542Sgad */ 318127499Sgad add_list(&ruidlist, optarg); 319127499Sgad xkeep_implied = 1; 320127499Sgad nselectors++; 321127499Sgad break; 322127499Sgad#endif 3231556Srgrimes case 'r': 3241556Srgrimes sortby = SORTCPU; 3251556Srgrimes break; 3261556Srgrimes case 'S': 3271556Srgrimes sumrusage = 1; 3281556Srgrimes break; 329127499Sgad#if 0 330127499Sgad case 's': 331127597Sgad /*- 332127542Sgad * XXX - This non-standard option is still under 333127542Sgad * debate. This *is* supported on Solaris, 334127542Sgad * Linux, and IRIX, but conflicts with `-s' 335127542Sgad * on NetBSD and maybe some older BSD's. 336127542Sgad */ 337127499Sgad add_list(&sesslist, optarg); 338127499Sgad xkeep_implied = 1; 339127499Sgad nselectors++; 340127499Sgad break; 341127499Sgad#endif 3421556Srgrimes case 'T': 3431556Srgrimes if ((optarg = ttyname(STDIN_FILENO)) == NULL) 3441556Srgrimes errx(1, "stdin: not a terminal"); 3451556Srgrimes /* FALLTHROUGH */ 346127499Sgad case 't': 347127499Sgad add_list(&ttylist, optarg); 348127499Sgad xkeep_implied = 1; 349127499Sgad nselectors++; 3501556Srgrimes break; 35113020Speter case 'U': 352127499Sgad /* This is what SUSv3 defines as the `-u' option. */ 353127499Sgad add_list(&uidlist, optarg); 354127499Sgad xkeep_implied = 1; 355127499Sgad nselectors++; 35613020Speter break; 3571556Srgrimes case 'u': 358109502Sjmallett parsefmt(ufmt, 0); 3591556Srgrimes sortby = SORTCPU; 36090143Smarkm _fmt = 1; 3611556Srgrimes ufmt[0] = '\0'; 3621556Srgrimes break; 3631556Srgrimes case 'v': 364109502Sjmallett parsefmt(vfmt, 0); 3651556Srgrimes sortby = SORTMEM; 36690143Smarkm _fmt = 1; 3671556Srgrimes vfmt[0] = '\0'; 3681556Srgrimes break; 3691556Srgrimes case 'w': 3701556Srgrimes if (wflag) 3711556Srgrimes termwidth = UNLIMITED; 3721556Srgrimes else if (termwidth < 131) 3731556Srgrimes termwidth = 131; 3741556Srgrimes wflag++; 3751556Srgrimes break; 376127499Sgad case 'X': 377127499Sgad /* 378127499Sgad * Note that `-X' and `-x' are not standard "selector" 379127499Sgad * options. For most selector-options, we check *all* 380127499Sgad * processes to see if any are matched by the given 381127499Sgad * value(s). After we have a set of all the matched 382127499Sgad * processes, then `-X' and `-x' govern whether we 383127499Sgad * modify that *matched* set for processes which do 384127499Sgad * not have a controlling terminal. `-X' causes 385127499Sgad * those processes to be deleted from the matched 386127499Sgad * set, while `-x' causes them to be kept. 387127499Sgad */ 388127499Sgad xkeep = 0; 389127499Sgad break; 3901556Srgrimes case 'x': 391127499Sgad xkeep = 1; 3921556Srgrimes break; 39386922Sgreen case 'Z': 394109502Sjmallett parsefmt(Zfmt, 0); 39586922Sgreen Zfmt[0] = '\0'; 39686922Sgreen break; 3971556Srgrimes case '?': 3981556Srgrimes default: 3991556Srgrimes usage(); 4001556Srgrimes } 4011556Srgrimes argc -= optind; 4021556Srgrimes argv += optind; 403129914Sgad 404129914Sgad /* 405129914Sgad * If there arguments after processing all the options, attempt 406129914Sgad * to treat them as a list of process ids. 407129914Sgad */ 408129914Sgad while (*argv) { 409129914Sgad if (!isdigitch(**argv)) 410129914Sgad break; 411129914Sgad add_list(&pidlist, *argv); 412129914Sgad argv++; 413129914Sgad } 414129914Sgad if (*argv) { 415129914Sgad fprintf(stderr, "%s: illegal argument: %s\n", 416129914Sgad getprogname(), *argv); 417129914Sgad usage(); 418129914Sgad } 419127499Sgad if (optfatal) 420127542Sgad exit(1); /* Error messages already printed. */ 421127542Sgad if (xkeep < 0) /* Neither -X nor -x was specified. */ 422127499Sgad xkeep = xkeep_implied; 423127499Sgad 42489909Sru kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf); 4251556Srgrimes if (kd == 0) 4261556Srgrimes errx(1, "%s", errbuf); 4271556Srgrimes 42890143Smarkm if (!_fmt) 429109502Sjmallett parsefmt(dfmt, 0); 4301556Srgrimes 431127499Sgad if (nselectors == 0) { 432127823Sgad uidlist.l.ptr = malloc(sizeof(uid_t)); 433127823Sgad if (uidlist.l.ptr == NULL) 43497877Sjmallett errx(1, "malloc failed"); 435127499Sgad nselectors = 1; 436127499Sgad uidlist.count = uidlist.maxcount = 1; 437127823Sgad *uidlist.l.uids = getuid(); 43866377Sbrian } 4391556Srgrimes 4401556Srgrimes /* 4411556Srgrimes * scan requested variables, noting what structures are needed, 44253170Skris * and adjusting header widths as appropriate. 4431556Srgrimes */ 4441556Srgrimes scanvars(); 445127499Sgad 4461556Srgrimes /* 447127499Sgad * Get process list. If the user requested just one selector- 448127499Sgad * option, then kvm_getprocs can be asked to return just those 449127499Sgad * processes. Otherwise, have it return all processes, and 450127499Sgad * then this routine will search that full list and select the 451127499Sgad * processes which match any of the user's selector-options. 4521556Srgrimes */ 453127499Sgad what = showthreads != 0 ? KERN_PROC_ALL : KERN_PROC_PROC; 454127499Sgad flag = 0; 455127499Sgad if (nselectors == 1) { 456129600Sgad if (gidlist.count == 1) { 457129600Sgad what = KERN_PROC_RGID | showthreads; 458129600Sgad flag = *gidlist.l.gids; 459129600Sgad nselectors = 0; 460129600Sgad } else if (pgrplist.count == 1) { 461127499Sgad what = KERN_PROC_PGRP | showthreads; 462127823Sgad flag = *pgrplist.l.pids; 463127499Sgad nselectors = 0; 464127499Sgad } else if (pidlist.count == 1) { 465127499Sgad what = KERN_PROC_PID | showthreads; 466127823Sgad flag = *pidlist.l.pids; 467127499Sgad nselectors = 0; 468127499Sgad } else if (ruidlist.count == 1) { 469127499Sgad what = KERN_PROC_RUID | showthreads; 470127823Sgad flag = *ruidlist.l.uids; 471127499Sgad nselectors = 0; 472127499Sgad } else if (sesslist.count == 1) { 473127499Sgad what = KERN_PROC_SESSION | showthreads; 474127823Sgad flag = *sesslist.l.pids; 475127499Sgad nselectors = 0; 476127499Sgad } else if (ttylist.count == 1) { 477127499Sgad what = KERN_PROC_TTY | showthreads; 478127823Sgad flag = *ttylist.l.ttys; 479127499Sgad nselectors = 0; 480127499Sgad } else if (uidlist.count == 1) { 481127499Sgad what = KERN_PROC_UID | showthreads; 482127823Sgad flag = *uidlist.l.uids; 483127499Sgad nselectors = 0; 484127499Sgad } else if (all) { 485127499Sgad /* No need for this routine to select processes. */ 486127499Sgad nselectors = 0; 487127499Sgad } 4881556Srgrimes } 489126127Sdeischen 4901556Srgrimes /* 4911556Srgrimes * select procs 4921556Srgrimes */ 493127499Sgad nentries = -1; 494127149Sgad kp = kvm_getprocs(kd, what, flag, &nentries); 495127544Sgad if ((kp == NULL && nentries > 0) || (kp != NULL && nentries < 0)) 4961556Srgrimes errx(1, "%s", kvm_geterr(kd)); 497127499Sgad nkept = 0; 498127149Sgad if (nentries > 0) { 499127149Sgad if ((kinfo = malloc(nentries * sizeof(*kinfo))) == NULL) 500127149Sgad errx(1, "malloc failed"); 501127149Sgad for (i = nentries; --i >= 0; ++kp) { 502127499Sgad /* 503127499Sgad * If the user specified multiple selection-criteria, 504127499Sgad * then keep any process matched by the inclusive OR 505127499Sgad * of all the selection-criteria given. 506127499Sgad */ 507127499Sgad if (pidlist.count > 0) { 508127499Sgad for (elem = 0; elem < pidlist.count; elem++) 509127823Sgad if (kp->ki_pid == pidlist.l.pids[elem]) 510127499Sgad goto keepit; 511127499Sgad } 512127499Sgad /* 513127499Sgad * Note that we had to process pidlist before 514127499Sgad * filtering out processes which do not have 515127499Sgad * a controlling terminal. 516127499Sgad */ 517127499Sgad if (xkeep == 0) { 518127499Sgad if ((kp->ki_tdev == NODEV || 519127499Sgad (kp->ki_flag & P_CONTROLT) == 0)) 520127499Sgad continue; 521127499Sgad } 522127499Sgad if (nselectors == 0) 523127499Sgad goto keepit; 524127499Sgad if (gidlist.count > 0) { 525127499Sgad for (elem = 0; elem < gidlist.count; elem++) 526127823Sgad if (kp->ki_rgid == gidlist.l.gids[elem]) 527127499Sgad goto keepit; 528127499Sgad } 529127499Sgad if (pgrplist.count > 0) { 530127499Sgad for (elem = 0; elem < pgrplist.count; elem++) 531127823Sgad if (kp->ki_pgid == 532127823Sgad pgrplist.l.pids[elem]) 533127499Sgad goto keepit; 534127499Sgad } 535127499Sgad if (ruidlist.count > 0) { 536127499Sgad for (elem = 0; elem < ruidlist.count; elem++) 537127823Sgad if (kp->ki_ruid == 538127823Sgad ruidlist.l.uids[elem]) 539127499Sgad goto keepit; 540127499Sgad } 541127499Sgad if (sesslist.count > 0) { 542127499Sgad for (elem = 0; elem < sesslist.count; elem++) 543127823Sgad if (kp->ki_sid == sesslist.l.pids[elem]) 544127499Sgad goto keepit; 545127499Sgad } 546127499Sgad if (ttylist.count > 0) { 547127499Sgad for (elem = 0; elem < ttylist.count; elem++) 548127823Sgad if (kp->ki_tdev == ttylist.l.ttys[elem]) 549127499Sgad goto keepit; 550127499Sgad } 551127499Sgad if (uidlist.count > 0) { 552127499Sgad for (elem = 0; elem < uidlist.count; elem++) 553127823Sgad if (kp->ki_uid == uidlist.l.uids[elem]) 554127499Sgad goto keepit; 555127499Sgad } 556127499Sgad /* 557127499Sgad * This process did not match any of the user's 558127499Sgad * selector-options, so skip the process. 559127499Sgad */ 560127499Sgad continue; 561127499Sgad 562127499Sgad keepit: 563130816Sgad next_KINFO = &kinfo[nkept]; 564130816Sgad next_KINFO->ki_p = kp; 565130816Sgad next_KINFO->ki_pcpu = getpcpu(next_KINFO); 566130816Sgad if (sortby == SORTMEM) 567130816Sgad next_KINFO->ki_memsize = kp->ki_tsize + 568130816Sgad kp->ki_dsize + kp->ki_ssize; 569127149Sgad if (needuser) 570130816Sgad saveuser(next_KINFO); 571130816Sgad dynsizevars(next_KINFO); 572127499Sgad nkept++; 573127149Sgad } 5741556Srgrimes } 57525271Sjkh 57625271Sjkh sizevars(); 57725271Sjkh 5781556Srgrimes /* 5791556Srgrimes * print header 5801556Srgrimes */ 5811556Srgrimes printheader(); 582127499Sgad if (nkept == 0) 58362803Swill exit(1); 584127499Sgad 5851556Srgrimes /* 5861556Srgrimes * sort proc list 5871556Srgrimes */ 588127499Sgad qsort(kinfo, nkept, sizeof(KINFO), pscomp); 5891556Srgrimes /* 590127499Sgad * For each process, call each variable output function. 5911556Srgrimes */ 592127499Sgad for (i = lineno = 0; i < nkept; i++) { 593130999Sgad STAILQ_FOREACH(vent, &varlist, next_ve) { 5941556Srgrimes (vent->var->oproc)(&kinfo[i], vent); 595130999Sgad if (STAILQ_NEXT(vent, next_ve) != NULL) 5961556Srgrimes (void)putchar(' '); 5971556Srgrimes } 5981556Srgrimes (void)putchar('\n'); 5991556Srgrimes if (prtheader && lineno++ == prtheader - 4) { 6001556Srgrimes (void)putchar('\n'); 6011556Srgrimes printheader(); 6021556Srgrimes lineno = 0; 6031556Srgrimes } 6041556Srgrimes } 605127499Sgad free_list(&gidlist); 606127499Sgad free_list(&pidlist); 607127499Sgad free_list(&pgrplist); 608127499Sgad free_list(&ruidlist); 609127499Sgad free_list(&sesslist); 610127499Sgad free_list(&ttylist); 611127499Sgad free_list(&uidlist); 61266377Sbrian 6131556Srgrimes exit(eval); 6141556Srgrimes} 6151556Srgrimes 616127499Sgadstatic int 617127499Sgadaddelem_gid(struct listinfo *inf, const char *elem) 618127499Sgad{ 619127499Sgad struct group *grp; 620127499Sgad const char *nameorID; 621127499Sgad char *endp; 622127602Sgad u_long bigtemp; 623127499Sgad 624127499Sgad if (*elem == '\0' || strlen(elem) >= MAXLOGNAME) { 625127499Sgad if (*elem == '\0') 626127499Sgad warnx("Invalid (zero-length) %s name", inf->lname); 627127499Sgad else 628127499Sgad warnx("%s name too long: %s", inf->lname, elem); 629127499Sgad optfatal = 1; 630127542Sgad return (0); /* Do not add this value. */ 631127499Sgad } 632127499Sgad 633127499Sgad /* 634127499Sgad * SUSv3 states that `ps -G grouplist' should match "real-group 635127499Sgad * ID numbers", and does not mention group-names. I do want to 636127499Sgad * also support group-names, so this tries for a group-id first, 637127499Sgad * and only tries for a name if that doesn't work. This is the 638127499Sgad * opposite order of what is done in addelem_uid(), but in 639127499Sgad * practice the order would only matter for group-names which 640127499Sgad * are all-numeric. 641127499Sgad */ 642127499Sgad grp = NULL; 643127499Sgad nameorID = "named"; 644127499Sgad errno = 0; 645127602Sgad bigtemp = strtoul(elem, &endp, 10); 646127602Sgad if (errno == 0 && *endp == '\0' && bigtemp <= GID_MAX) { 647127499Sgad nameorID = "name or ID matches"; 648127602Sgad grp = getgrgid((gid_t)bigtemp); 649127499Sgad } 650127499Sgad if (grp == NULL) 651127499Sgad grp = getgrnam(elem); 652127499Sgad if (grp == NULL) { 653127499Sgad warnx("No %s %s '%s'", inf->lname, nameorID, elem); 654127499Sgad optfatal = 1; 655129967Sgad return (0); 656127499Sgad } 657127499Sgad if (inf->count >= inf->maxcount) 658127499Sgad expand_list(inf); 659127823Sgad inf->l.gids[(inf->count)++] = grp->gr_gid; 660127499Sgad return (1); 661127499Sgad} 662127499Sgad 663127597Sgad#define BSD_PID_MAX 99999 /* Copy of PID_MAX from sys/proc.h. */ 664127499Sgadstatic int 665127499Sgadaddelem_pid(struct listinfo *inf, const char *elem) 666127149Sgad{ 667127539Sgad char *endp; 668127149Sgad long tempid; 669127149Sgad 670129917Sgad if (*elem == '\0') { 671129917Sgad warnx("Invalid (zero-length) process id"); 672129917Sgad optfatal = 1; 673129917Sgad return (0); /* Do not add this value. */ 674127149Sgad } 675127149Sgad 676129952Sgad errno = 0; 677129952Sgad tempid = strtol(elem, &endp, 10); 678129952Sgad if (*endp != '\0' || tempid < 0 || elem == endp) { 679129952Sgad warnx("Invalid %s: %s", inf->lname, elem); 680129952Sgad errno = ERANGE; 681129952Sgad } else if (errno != 0 || tempid > BSD_PID_MAX) { 682129952Sgad warnx("%s too large: %s", inf->lname, elem); 683129952Sgad errno = ERANGE; 684129952Sgad } 685129952Sgad if (errno == ERANGE) { 686129952Sgad optfatal = 1; 687129967Sgad return (0); 688129952Sgad } 689127499Sgad if (inf->count >= inf->maxcount) 690127499Sgad expand_list(inf); 691127823Sgad inf->l.pids[(inf->count)++] = tempid; 692127499Sgad return (1); 693127499Sgad} 694127499Sgad#undef BSD_PID_MAX 695127149Sgad 696131010Sgad/*- 697131010Sgad * The user can specify a device via one of three formats: 698131010Sgad * 1) fully qualified, e.g.: /dev/ttyp0 /dev/console 699131010Sgad * 2) missing "/dev", e.g.: ttyp0 console 700131010Sgad * 3) two-letters, e.g.: p0 co 701131010Sgad * (matching letters that would be seen in the "TT" column) 702131010Sgad */ 703127499Sgadstatic int 704127499Sgadaddelem_tty(struct listinfo *inf, const char *elem) 705127499Sgad{ 706127539Sgad const char *ttypath; 707127539Sgad struct stat sb; 708131209Sgad char pathbuf[PATH_MAX], pathbuf2[PATH_MAX]; 709127499Sgad 710131010Sgad ttypath = NULL; 711131209Sgad pathbuf2[0] = '\0'; 712131010Sgad switch (*elem) { 713131010Sgad case '/': 714127499Sgad ttypath = elem; 715131010Sgad break; 716131010Sgad case 'c': 717131010Sgad if (strcmp(elem, "co") == 0) { 718131010Sgad ttypath = _PATH_CONSOLE; 719131010Sgad break; 720131010Sgad } 721131010Sgad /* FALLTHROUGH */ 722131010Sgad default: 723131010Sgad strlcpy(pathbuf, _PATH_DEV, sizeof(pathbuf)); 724131010Sgad strlcat(pathbuf, elem, sizeof(pathbuf)); 725131010Sgad ttypath = pathbuf; 726131209Sgad if (strncmp(pathbuf, _PATH_TTY, strlen(_PATH_TTY)) == 0) 727131010Sgad break; 728131010Sgad if (strcmp(pathbuf, _PATH_CONSOLE) == 0) 729131010Sgad break; 730131209Sgad /* Check to see if /dev/tty${elem} exists */ 731131209Sgad strlcpy(pathbuf2, _PATH_TTY, sizeof(pathbuf2)); 732131209Sgad strlcat(pathbuf2, elem, sizeof(pathbuf2)); 733131209Sgad if (stat(pathbuf2, &sb) == 0 && S_ISCHR(sb.st_mode)) { 734131010Sgad /* No need to repeat stat() && S_ISCHR() checks */ 735131010Sgad ttypath = NULL; 736131010Sgad break; 737131010Sgad } 738131010Sgad break; 739127499Sgad } 740131010Sgad if (ttypath) { 741131010Sgad if (stat(ttypath, &sb) == -1) { 742131209Sgad if (pathbuf2[0] != '\0') 743131209Sgad warn("%s and %s", pathbuf2, ttypath); 744131209Sgad else 745131209Sgad warn("%s", ttypath); 746131010Sgad optfatal = 1; 747131010Sgad return (0); 748131010Sgad } 749131010Sgad if (!S_ISCHR(sb.st_mode)) { 750131209Sgad if (pathbuf2[0] != '\0') 751131209Sgad warnx("%s and %s: Not a terminal", pathbuf2, 752131209Sgad ttypath); 753131209Sgad else 754131209Sgad warnx("%s: Not a terminal", ttypath); 755131010Sgad optfatal = 1; 756131010Sgad return (0); 757131010Sgad } 758127499Sgad } 759127499Sgad if (inf->count >= inf->maxcount) 760127499Sgad expand_list(inf); 761127823Sgad inf->l.ttys[(inf->count)++] = sb.st_rdev; 762127499Sgad return (1); 763127149Sgad} 764127149Sgad 765127499Sgadstatic int 766127499Sgadaddelem_uid(struct listinfo *inf, const char *elem) 76766377Sbrian{ 76866377Sbrian struct passwd *pwd; 769127539Sgad char *endp; 770127602Sgad u_long bigtemp; 77166377Sbrian 772127499Sgad if (*elem == '\0' || strlen(elem) >= MAXLOGNAME) { 773127499Sgad if (*elem == '\0') 774127499Sgad warnx("Invalid (zero-length) %s name", inf->lname); 775127499Sgad else 776127499Sgad warnx("%s name too long: %s", inf->lname, elem); 777127499Sgad optfatal = 1; 778127542Sgad return (0); /* Do not add this value. */ 779127499Sgad } 78066377Sbrian 781127499Sgad pwd = getpwnam(elem); 782127499Sgad if (pwd == NULL) { 783127499Sgad errno = 0; 784127602Sgad bigtemp = strtoul(elem, &endp, 10); 785127602Sgad if (errno != 0 || *endp != '\0' || bigtemp > UID_MAX) 786127499Sgad warnx("No %s named '%s'", inf->lname, elem); 787127499Sgad else { 788127499Sgad /* The string is all digits, so it might be a userID. */ 789127602Sgad pwd = getpwuid((uid_t)bigtemp); 790127499Sgad if (pwd == NULL) 791127499Sgad warnx("No %s name or ID matches '%s'", 792127499Sgad inf->lname, elem); 79366377Sbrian } 794127499Sgad } 795127499Sgad if (pwd == NULL) { 796127509Sgad /* 797127509Sgad * These used to be treated as minor warnings (and the 798127509Sgad * option was simply ignored), but now they are fatal 799127509Sgad * errors (and the command will be aborted). 800127509Sgad */ 801127509Sgad optfatal = 1; 802129967Sgad return (0); 803127499Sgad } 804127499Sgad if (inf->count >= inf->maxcount) 805127499Sgad expand_list(inf); 806127823Sgad inf->l.uids[(inf->count)++] = pwd->pw_uid; 807127499Sgad return (1); 808127499Sgad} 809127499Sgad 810127499Sgadstatic void 811127499Sgadadd_list(struct listinfo *inf, const char *argp) 812127499Sgad{ 813127499Sgad const char *savep; 814127499Sgad char *cp, *endp; 815127499Sgad int toolong; 816127539Sgad char elemcopy[PATH_MAX]; 817127499Sgad 818129917Sgad if (*argp == 0) 819129967Sgad inf->addelem(inf, elemcopy); 820127499Sgad while (*argp != '\0') { 821127499Sgad while (*argp != '\0' && strchr(W_SEP, *argp) != NULL) 822127499Sgad argp++; 823127499Sgad savep = argp; 824127499Sgad toolong = 0; 825127499Sgad cp = elemcopy; 826127499Sgad if (strchr(T_SEP, *argp) == NULL) { 827127499Sgad endp = elemcopy + sizeof(elemcopy) - 1; 828127499Sgad while (*argp != '\0' && cp <= endp && 829127499Sgad strchr(W_SEP T_SEP, *argp) == NULL) 830127499Sgad *cp++ = *argp++; 831127499Sgad if (cp > endp) 832127499Sgad toolong = 1; 83366377Sbrian } 834127499Sgad if (!toolong) { 835127499Sgad *cp = '\0'; 836127542Sgad /* 837129953Sgad * Add this single element to the given list. 838127542Sgad */ 839127499Sgad inf->addelem(inf, elemcopy); 840127499Sgad } else { 841127499Sgad /* 842127499Sgad * The string is too long to copy. Find the end 843127499Sgad * of the string to print out the warning message. 844127499Sgad */ 845127499Sgad while (*argp != '\0' && strchr(W_SEP T_SEP, 846127499Sgad *argp) == NULL) 847127499Sgad argp++; 848127499Sgad warnx("Value too long: %.*s", (int)(argp - savep), 849127499Sgad savep); 850127499Sgad optfatal = 1; 85166377Sbrian } 852127499Sgad /* 853127499Sgad * Skip over any number of trailing whitespace characters, 854127499Sgad * but only one (at most) trailing element-terminating 855127499Sgad * character. 856127499Sgad */ 857127499Sgad while (*argp != '\0' && strchr(W_SEP, *argp) != NULL) 858127499Sgad argp++; 859127499Sgad if (*argp != '\0' && strchr(T_SEP, *argp) != NULL) { 860127499Sgad argp++; 861127499Sgad /* Catch case where string ended with a comma. */ 862127499Sgad if (*argp == '\0') 863127499Sgad inf->addelem(inf, argp); 864127499Sgad } 86566377Sbrian } 866127499Sgad} 86766377Sbrian 868127499Sgadstatic void * 869127499Sgadexpand_list(struct listinfo *inf) 870127499Sgad{ 871127539Sgad void *newlist; 872127499Sgad int newmax; 87366377Sbrian 874127499Sgad newmax = (inf->maxcount + 1) << 1; 875127823Sgad newlist = realloc(inf->l.ptr, newmax * inf->elemsize); 876127499Sgad if (newlist == NULL) { 877127823Sgad free(inf->l.ptr); 878129967Sgad errx(1, "realloc to %d %ss failed", newmax, inf->lname); 879127499Sgad } 880127499Sgad inf->maxcount = newmax; 881127823Sgad inf->l.ptr = newlist; 882127499Sgad 883127499Sgad return (newlist); 88466377Sbrian} 88566377Sbrian 886127499Sgadstatic void 887127499Sgadfree_list(struct listinfo *inf) 888127499Sgad{ 889127499Sgad 890127499Sgad inf->count = inf->elemsize = inf->maxcount = 0; 891127823Sgad if (inf->l.ptr != NULL) 892127823Sgad free(inf->l.ptr); 893127499Sgad inf->addelem = NULL; 894127499Sgad inf->lname = NULL; 895127823Sgad inf->l.ptr = NULL; 896127499Sgad} 897127499Sgad 898127499Sgadstatic void 899127499Sgadinit_list(struct listinfo *inf, addelem_rtn artn, int elemsize, 900127499Sgad const char *lname) 901127499Sgad{ 902127499Sgad 903127499Sgad inf->count = inf->maxcount = 0; 904127499Sgad inf->elemsize = elemsize; 905127499Sgad inf->addelem = artn; 906127499Sgad inf->lname = lname; 907127823Sgad inf->l.ptr = NULL; 908127499Sgad} 909127499Sgad 910109502SjmallettVARENT * 911109502Sjmallettfind_varentry(VAR *v) 912109502Sjmallett{ 913109502Sjmallett struct varent *vent; 914109502Sjmallett 915130999Sgad STAILQ_FOREACH(vent, &varlist, next_ve) { 916109502Sjmallett if (strcmp(vent->var->name, v->name) == 0) 917109502Sjmallett return vent; 918109502Sjmallett } 919109502Sjmallett return NULL; 920109502Sjmallett} 921109502Sjmallett 9221556Srgrimesstatic void 92390110Simpscanvars(void) 9241556Srgrimes{ 9251556Srgrimes struct varent *vent; 9261556Srgrimes VAR *v; 92725271Sjkh 928130999Sgad STAILQ_FOREACH(vent, &varlist, next_ve) { 92925271Sjkh v = vent->var; 93025271Sjkh if (v->flag & DSIZ) { 93125271Sjkh v->dwidth = v->width; 93225271Sjkh v->width = 0; 93325271Sjkh } 93425271Sjkh if (v->flag & USER) 93525271Sjkh needuser = 1; 93625271Sjkh if (v->flag & COMM) 93725271Sjkh needcomm = 1; 93825271Sjkh } 93925271Sjkh} 94025271Sjkh 94125271Sjkhstatic void 94290110Simpdynsizevars(KINFO *ki) 94325271Sjkh{ 94425271Sjkh struct varent *vent; 94525271Sjkh VAR *v; 9461556Srgrimes int i; 9471556Srgrimes 948130999Sgad STAILQ_FOREACH(vent, &varlist, next_ve) { 9491556Srgrimes v = vent->var; 95025271Sjkh if (!(v->flag & DSIZ)) 95125271Sjkh continue; 95225271Sjkh i = (v->sproc)( ki); 95325271Sjkh if (v->width < i) 95425271Sjkh v->width = i; 95525271Sjkh if (v->width > v->dwidth) 95625271Sjkh v->width = v->dwidth; 95725271Sjkh } 95825271Sjkh} 95925271Sjkh 96025271Sjkhstatic void 96190110Simpsizevars(void) 96225271Sjkh{ 96325271Sjkh struct varent *vent; 96425271Sjkh VAR *v; 96525271Sjkh int i; 96625271Sjkh 967130999Sgad STAILQ_FOREACH(vent, &varlist, next_ve) { 96825271Sjkh v = vent->var; 969109504Sjmallett i = strlen(vent->header); 9701556Srgrimes if (v->width < i) 9711556Srgrimes v->width = i; 9721556Srgrimes totwidth += v->width + 1; /* +1 for space */ 9731556Srgrimes } 9741556Srgrimes totwidth--; 9751556Srgrimes} 9761556Srgrimes 97790143Smarkmstatic const char * 97890110Simpfmt(char **(*fn)(kvm_t *, const struct kinfo_proc *, int), KINFO *ki, 979127542Sgad char *comm, int maxlen) 9801556Srgrimes{ 98190143Smarkm const char *s; 9821556Srgrimes 98390143Smarkm s = fmt_argv((*fn)(kd, ki->ki_p, termwidth), comm, maxlen); 9841556Srgrimes return (s); 9851556Srgrimes} 9861556Srgrimes 98771578Sjhb#define UREADOK(ki) (forceuread || (ki->ki_p->ki_sflag & PS_INMEM)) 98831552Sdyson 9891556Srgrimesstatic void 99090110Simpsaveuser(KINFO *ki) 9911556Srgrimes{ 9921556Srgrimes 99371578Sjhb if (ki->ki_p->ki_sflag & PS_INMEM) { 9941556Srgrimes /* 9951556Srgrimes * The u-area might be swapped out, and we can't get 9961556Srgrimes * at it because we have a crashdump and no swap. 9971556Srgrimes * If it's here fill in these fields, otherwise, just 9981556Srgrimes * leave them 0. 9991556Srgrimes */ 100069896Smckusick ki->ki_valid = 1; 10011556Srgrimes } else 100269896Smckusick ki->ki_valid = 0; 10031556Srgrimes /* 10041556Srgrimes * save arguments if needed 10051556Srgrimes */ 1006130991Sgad if (needcomm) { 1007130991Sgad if (ki->ki_p->ki_stat == SZOMB) 1008130991Sgad ki->ki_args = strdup("<defunct>"); 1009130991Sgad else if (UREADOK(ki) || (ki->ki_p->ki_args != NULL)) 1010130991Sgad ki->ki_args = strdup(fmt(kvm_getargv, ki, 1011130991Sgad ki->ki_p->ki_comm, MAXCOMLEN)); 1012130991Sgad else 1013130991Sgad asprintf(&ki->ki_args, "(%s)", ki->ki_p->ki_comm); 1014131024Sgad if (ki->ki_args == NULL) 1015130991Sgad errx(1, "malloc failed"); 101653276Speter } else { 101753276Speter ki->ki_args = NULL; 101853276Speter } 1019130991Sgad if (needenv) { 1020130991Sgad if (UREADOK(ki)) 1021130991Sgad ki->ki_env = strdup(fmt(kvm_getenvv, ki, 1022130991Sgad (char *)NULL, 0)); 1023130991Sgad else 1024130991Sgad ki->ki_env = strdup("()"); 1025130991Sgad if (ki->ki_env == NULL) 1026130991Sgad errx(1, "malloc failed"); 102753276Speter } else { 102853276Speter ki->ki_env = NULL; 102953276Speter } 10301556Srgrimes} 10311556Srgrimes 1032130816Sgad/* A macro used to improve the readability of pscomp(). */ 1033130816Sgad#define DIFF_RETURN(a, b, field) do { \ 1034130816Sgad if ((a)->field != (b)->field) \ 1035130816Sgad return (((a)->field < (b)->field) ? -1 : 1); \ 1036130816Sgad} while (0) 1037130816Sgad 10381556Srgrimesstatic int 103990110Simppscomp(const void *a, const void *b) 10401556Srgrimes{ 1041127596Sgad const KINFO *ka, *kb; 10421556Srgrimes 1043127596Sgad ka = a; 1044127596Sgad kb = b; 1045127596Sgad /* SORTCPU and SORTMEM are sorted in descending order. */ 1046130816Sgad if (sortby == SORTCPU) 1047130816Sgad DIFF_RETURN(kb, ka, ki_pcpu); 1048130816Sgad if (sortby == SORTMEM) 1049130816Sgad DIFF_RETURN(kb, ka, ki_memsize); 1050127596Sgad /* 1051127596Sgad * TTY's are sorted in ascending order, except that all NODEV 1052127596Sgad * processes come before all processes with a device. 1053127596Sgad */ 1054130816Sgad if (ka->ki_p->ki_tdev != kb->ki_p->ki_tdev) { 1055130816Sgad if (ka->ki_p->ki_tdev == NODEV) 1056130816Sgad return (-1); 1057130816Sgad if (kb->ki_p->ki_tdev == NODEV) 1058130816Sgad return (1); 1059130816Sgad DIFF_RETURN(ka, kb, ki_p->ki_tdev); 1060130816Sgad } 1061130816Sgad 1062130972Sgad /* PID's and TID's (threads) are sorted in ascending order. */ 1063130816Sgad DIFF_RETURN(ka, kb, ki_p->ki_pid); 1064130972Sgad DIFF_RETURN(ka, kb, ki_p->ki_tid); 1065127596Sgad return (0); 10661556Srgrimes} 1067130816Sgad#undef DIFF_RETURN 10681556Srgrimes 10691556Srgrimes/* 10701556Srgrimes * ICK (all for getopt), would rather hide the ugliness 10711556Srgrimes * here than taint the main code. 10721556Srgrimes * 10731556Srgrimes * ps foo -> ps -foo 10741556Srgrimes * ps 34 -> ps -p34 10751556Srgrimes * 10761556Srgrimes * The old convention that 't' with no trailing tty arg means the users 10771556Srgrimes * tty, is only supported if argv[1] doesn't begin with a '-'. This same 10781556Srgrimes * feature is available with the option 'T', which takes no argument. 10791556Srgrimes */ 10801556Srgrimesstatic char * 1081129915Sgadkludge_oldps_options(const char *optlist, char *origval, const char *nextarg) 10821556Srgrimes{ 10831556Srgrimes size_t len; 1084129914Sgad char *argp, *cp, *newopts, *ns, *optp, *pidp; 10851556Srgrimes 1086102886Sjmallett /* 1087129914Sgad * See if the original value includes any option which takes an 1088129914Sgad * argument (and will thus use up the remainder of the string). 1089102886Sjmallett */ 1090129914Sgad argp = NULL; 1091129914Sgad if (optlist != NULL) { 1092129914Sgad for (cp = origval; *cp != '\0'; cp++) { 1093129914Sgad optp = strchr(optlist, *cp); 1094129914Sgad if ((optp != NULL) && *(optp + 1) == ':') { 1095129914Sgad argp = cp; 1096129914Sgad break; 1097129914Sgad } 1098129914Sgad } 1099129914Sgad } 1100129914Sgad if (argp != NULL && *origval == '-') 1101129914Sgad return (origval); 1102102886Sjmallett 11031556Srgrimes /* 11041556Srgrimes * if last letter is a 't' flag with no argument (in the context 11051556Srgrimes * of the oldps options -- option string NOT starting with a '-' -- 11061556Srgrimes * then convert to 'T' (meaning *this* terminal, i.e. ttyname(0)). 110781743Sbrian * 1108129634Sgad * However, if a flag accepting a string argument is found earlier 1109129634Sgad * in the option string (including a possible `t' flag), then the 1110129634Sgad * remainder of the string must be the argument to that flag; so 1111129914Sgad * do not modify that argument. Note that a trailing `t' would 1112129914Sgad * cause argp to be set, if argp was not already set by some 1113129914Sgad * earlier option. 11141556Srgrimes */ 1115129914Sgad len = strlen(origval); 1116129914Sgad cp = origval + len - 1; 1117129914Sgad pidp = NULL; 1118129915Sgad if (*cp == 't' && *origval != '-' && cp == argp) { 1119129915Sgad if (nextarg == NULL || *nextarg == '-' || isdigitch(*nextarg)) 1120129915Sgad *cp = 'T'; 1121129915Sgad } else if (argp == NULL) { 11221556Srgrimes /* 1123129914Sgad * The original value did not include any option which takes 1124129914Sgad * an argument (and that would include `p' and `t'), so check 1125129914Sgad * the value for trailing number, or comma-separated list of 1126129914Sgad * numbers, which we will treat as a pid request. 11271556Srgrimes */ 1128129914Sgad if (isdigitch(*cp)) { 1129129914Sgad while (cp >= origval && (*cp == ',' || isdigitch(*cp))) 1130129914Sgad --cp; 1131129914Sgad pidp = cp + 1; 1132129914Sgad } 11331556Srgrimes } 1134129914Sgad 11351556Srgrimes /* 1136129914Sgad * If nothing needs to be added to the string, then return 1137129914Sgad * the "original" (although possibly modified) value. 11381556Srgrimes */ 1139129914Sgad if (*origval == '-' && pidp == NULL) 1140129914Sgad return (origval); 1141129914Sgad 1142129914Sgad /* 1143129914Sgad * Create a copy of the string to add '-' and/or 'p' to the 1144129914Sgad * original value. 1145129914Sgad */ 1146129914Sgad if ((newopts = ns = malloc(len + 3)) == NULL) 1147129914Sgad errx(1, "malloc failed"); 1148129914Sgad 1149129914Sgad if (*origval != '-') 1150129914Sgad *ns++ = '-'; /* add option flag */ 1151129914Sgad 1152129914Sgad if (pidp == NULL) 1153129914Sgad strcpy(ns, origval); 1154129914Sgad else { 1155129914Sgad /* 1156129914Sgad * Copy everything before the pid string, add the `p', 1157129914Sgad * and then copy the pid string. 1158129914Sgad */ 1159129914Sgad len = pidp - origval; 1160129914Sgad memcpy(ns, origval, len); 1161129914Sgad ns += len; 11621556Srgrimes *ns++ = 'p'; 1163129914Sgad strcpy(ns, pidp); 1164129914Sgad } 11651556Srgrimes 11661556Srgrimes return (newopts); 11671556Srgrimes} 11681556Srgrimes 11691556Srgrimesstatic void 117090110Simpusage(void) 11711556Srgrimes{ 1172130973Sgad#define SINGLE_OPTS "[-aCc" OPT_LAZY_f "HhjlmrSTuvwXxZ]" 11731556Srgrimes 1174127499Sgad (void)fprintf(stderr, "%s\n%s\n%s\n%s\n", 1175127507Sgad "usage: ps " SINGLE_OPTS " [-G gid[,gid]] [-O|o fmt]", 1176127499Sgad " [-p pid[,pid]] [-t tty[,tty]] [-U user[,user]]", 1177127499Sgad " [-M core] [-N system]", 117826465Scharnier " ps [-L]"); 11791556Srgrimes exit(1); 11801556Srgrimes} 1181