ps.c revision 127506
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 * 3. All advertising materials mentioning features or use of this software 141556Srgrimes * must display the following acknowledgement: 151556Srgrimes * This product includes software developed by the University of 161556Srgrimes * California, Berkeley and its contributors. 171556Srgrimes * 4. Neither the name of the University nor the names of its contributors 181556Srgrimes * may be used to endorse or promote products derived from this software 191556Srgrimes * without specific prior written permission. 201556Srgrimes * 211556Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 221556Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 231556Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 241556Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 251556Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 261556Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 271556Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 281556Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 291556Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 301556Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 311556Srgrimes * SUCH DAMAGE. 32127499Sgad * ------+---------+---------+-------- + --------+---------+---------+---------* 33127499Sgad * Copyright (c) 2004 - Garance Alistair Drosehn <gad@FreeBSD.org>. 34127499Sgad * All rights reserved. 35127499Sgad * 36127499Sgad * Significant modifications made to bring `ps' options somewhat closer 37127499Sgad * to the standard for `ps' as described in SingleUnixSpec-v3. 38127499Sgad * ------+---------+---------+-------- + --------+---------+---------+---------* 391556Srgrimes */ 401556Srgrimes 411556Srgrimes#ifndef lint 4290143Smarkmstatic const char copyright[] = 431556Srgrimes"@(#) Copyright (c) 1990, 1993, 1994\n\ 441556Srgrimes The Regents of the University of California. All rights reserved.\n"; 451556Srgrimes#endif /* not lint */ 461556Srgrimes 4790143Smarkm#if 0 481556Srgrimes#ifndef lint 4936049Scharnierstatic char sccsid[] = "@(#)ps.c 8.4 (Berkeley) 4/2/94"; 5090143Smarkm#endif /* not lint */ 5136049Scharnier#endif 52110391Scharnier 5399110Sobrien#include <sys/cdefs.h> 5499110Sobrien__FBSDID("$FreeBSD: head/bin/ps/ps.c 127506 2004-03-27 21:40:04Z gad $"); 551556Srgrimes 561556Srgrimes#include <sys/param.h> 573296Sdg#include <sys/user.h> 581556Srgrimes#include <sys/stat.h> 591556Srgrimes#include <sys/ioctl.h> 601556Srgrimes#include <sys/sysctl.h> 611556Srgrimes 621556Srgrimes#include <ctype.h> 631556Srgrimes#include <err.h> 64127149Sgad#include <errno.h> 651556Srgrimes#include <fcntl.h> 66127499Sgad#include <grp.h> 671556Srgrimes#include <kvm.h> 6813514Smpp#include <limits.h> 6973367Sache#include <locale.h> 701556Srgrimes#include <paths.h> 7190143Smarkm#include <pwd.h> 72127499Sgad#include <stdint.h> 731556Srgrimes#include <stdio.h> 741556Srgrimes#include <stdlib.h> 751556Srgrimes#include <string.h> 761556Srgrimes#include <unistd.h> 771556Srgrimes 781556Srgrimes#include "ps.h" 791556Srgrimes 80127499Sgad#define W_SEP " \t" /* "Whitespace" list separators */ 81127499Sgad#define T_SEP "," /* "Terminate-element" list separators */ 8266377Sbrian 8390143Smarkmstatic KINFO *kinfo; 8490143Smarkmstruct varent *vhead; 851556Srgrimes 861556Srgrimesint eval; /* exit value */ 8719068Speterint cflag; /* -c */ 88127499Sgadint optfatal; /* Fatal error parsing some list-option */ 891556Srgrimesint rawcpu; /* -C */ 901556Srgrimesint sumrusage; /* -S */ 911556Srgrimesint termwidth; /* width of screen (0 == infinity) */ 921556Srgrimesint totwidth; /* calculated width of requested variables */ 931556Srgrimes 9497966Sjmalletttime_t now; /* current time(3) value */ 9597966Sjmallett 96127499Sgadstruct listinfo; 97127499Sgadtypedef int addelem_rtn(struct listinfo *_inf, const char *elem); 98127499Sgad 99127499Sgadstruct listinfo { 100127499Sgad int count; 101127499Sgad int maxcount; 102127499Sgad int elemsize; 103127499Sgad addelem_rtn *addelem; 104127499Sgad const char *lname; 105127499Sgad union { 106127499Sgad gid_t *gids; 107127499Sgad pid_t *pids; 108127499Sgad dev_t *ttys; 109127499Sgad uid_t *uids; 110127499Sgad void *ptr; 111127499Sgad }; 112127499Sgad}; 113127499Sgad 1141556Srgrimesstatic int needuser, needcomm, needenv; 11531552Sdyson#if defined(LAZY_PS) 11631552Sdysonstatic int forceuread=0; 11731552Sdyson#else 11831552Sdysonstatic int forceuread=1; 11931552Sdyson#endif 1201556Srgrimes 12190143Smarkmstatic enum sort { DEFAULT, SORTMEM, SORTCPU } sortby = DEFAULT; 1221556Srgrimes 12390143Smarkmstatic const char *fmt(char **(*)(kvm_t *, const struct kinfo_proc *, int), 12490110Simp KINFO *, char *, int); 12590110Simpstatic char *kludge_oldps_options(char *); 12690110Simpstatic int pscomp(const void *, const void *); 12790110Simpstatic void saveuser(KINFO *); 12890110Simpstatic void scanvars(void); 12990110Simpstatic void dynsizevars(KINFO *); 13090110Simpstatic void sizevars(void); 13190110Simpstatic void usage(void); 1321556Srgrimes 133127499Sgadstatic int addelem_gid(struct listinfo *, const char *); 134127499Sgadstatic int addelem_pid(struct listinfo *, const char *); 135127499Sgadstatic int addelem_tty(struct listinfo *, const char *); 136127499Sgadstatic int addelem_uid(struct listinfo *, const char *); 137127499Sgadstatic void add_list(struct listinfo *, const char *); 138127499Sgadstatic void *expand_list(struct listinfo *); 139127499Sgadstatic void free_list(struct listinfo *); 140127499Sgadstatic void init_list(struct listinfo *, addelem_rtn, int, const char *); 141127499Sgad 14297875Sjmallettstatic char dfmt[] = "pid,tt,state,time,command"; 14397875Sjmallettstatic char jfmt[] = "user,pid,ppid,pgid,jobc,state,tt,time,command"; 14497875Sjmallettstatic char lfmt[] = "uid,pid,ppid,cpu,pri,nice,vsz,rss,mwchan,state,tt,time,command"; 14590143Smarkmstatic char o1[] = "pid"; 14697875Sjmallettstatic char o2[] = "tt,state,time,command"; 14797875Sjmallettstatic char ufmt[] = "user,pid,%cpu,%mem,vsz,rss,tt,state,start,time,command"; 14897875Sjmallettstatic char vfmt[] = "pid,state,time,sl,re,pagein,vsz,rss,lim,tsiz,%cpu,%mem,command"; 149105831Srwatsonstatic char Zfmt[] = "label"; 1501556Srgrimes 15190143Smarkmstatic kvm_t *kd; 1521556Srgrimes 15398494Ssobomax#if defined(LAZY_PS) 154127499Sgad#define PS_ARGS "AaCcefG:gHhjLlM:mN:O:o:p:rSTt:U:uvwXxZ" 15598494Ssobomax#else 156127499Sgad#define PS_ARGS "AaCceG:gHhjLlM:mN:O:o:p:rSTt:U:uvwXxZ" 15798494Ssobomax#endif 15898494Ssobomax 1591556Srgrimesint 16090110Simpmain(int argc, char *argv[]) 1611556Srgrimes{ 162127499Sgad struct listinfo gidlist, pgrplist, pidlist; 163127499Sgad struct listinfo ruidlist, sesslist, ttylist, uidlist; 1641556Srgrimes struct kinfo_proc *kp; 1651556Srgrimes struct varent *vent; 1661556Srgrimes struct winsize ws; 167127499Sgad int all, ch, dropgid, elem, flag, _fmt, i, lineno; 168127499Sgad int nentries, nocludge, nkept, nselectors; 169127499Sgad int prtheader, showthreads, wflag, what, xkeep, xkeep_implied; 17097804Stjr char *cols; 17190143Smarkm char errbuf[_POSIX2_LINE_MAX]; 17298494Ssobomax const char *cp, *nlistf, *memf; 1731556Srgrimes 17411809Sache (void) setlocale(LC_ALL, ""); 17597966Sjmallett /* Set the time to what it is right now. */ 17697966Sjmallett time(&now); 17711809Sache 17897804Stjr if ((cols = getenv("COLUMNS")) != NULL && *cols != '\0') 17997804Stjr termwidth = atoi(cols); 18097804Stjr else if ((ioctl(STDOUT_FILENO, TIOCGWINSZ, (char *)&ws) == -1 && 1811556Srgrimes ioctl(STDERR_FILENO, TIOCGWINSZ, (char *)&ws) == -1 && 1821556Srgrimes ioctl(STDIN_FILENO, TIOCGWINSZ, (char *)&ws) == -1) || 1831556Srgrimes ws.ws_col == 0) 1841556Srgrimes termwidth = 79; 1851556Srgrimes else 1861556Srgrimes termwidth = ws.ws_col - 1; 1871556Srgrimes 18898494Ssobomax /* 18998494Ssobomax * Don't apply a kludge if the first argument is an option taking an 19098494Ssobomax * argument 19198494Ssobomax */ 19298494Ssobomax if (argc > 1) { 19398494Ssobomax nocludge = 0; 19498494Ssobomax if (argv[1][0] == '-') { 19598494Ssobomax for (cp = PS_ARGS; *cp != '\0'; cp++) { 19698494Ssobomax if (*cp != ':') 19798494Ssobomax continue; 19898494Ssobomax if (*(cp - 1) == argv[1][1]) { 19998494Ssobomax nocludge = 1; 20098494Ssobomax break; 20198494Ssobomax } 20298494Ssobomax } 20398494Ssobomax } 20498494Ssobomax if (nocludge == 0) 20598494Ssobomax argv[1] = kludge_oldps_options(argv[1]); 20698494Ssobomax } 2071556Srgrimes 208127499Sgad xkeep = -1; /* Neither -x nor -X */ 209127499Sgad all = _fmt = nselectors = prtheader = wflag = xkeep_implied = 0; 210127499Sgad init_list(&gidlist, addelem_gid, sizeof(gid_t), "group"); 211127499Sgad init_list(&pgrplist, addelem_pid, sizeof(pid_t), "process group"); 212127499Sgad init_list(&pidlist, addelem_pid, sizeof(pid_t), "process id"); 213127499Sgad init_list(&ruidlist, addelem_uid, sizeof(uid_t), "ruser"); 214127499Sgad init_list(&sesslist, addelem_pid, sizeof(pid_t), "session id"); 215127499Sgad init_list(&ttylist, addelem_tty, sizeof(dev_t), "tty"); 216127499Sgad init_list(&uidlist, addelem_uid, sizeof(uid_t), "user"); 21737317Sphk dropgid = 0; 218127499Sgad optfatal = 0; 21989909Sru memf = nlistf = _PATH_DEVNULL; 220116265Sscottl showthreads = 0; 22198494Ssobomax while ((ch = getopt(argc, argv, PS_ARGS)) != -1) 2221556Srgrimes switch((char)ch) { 223127499Sgad case 'A': 224127499Sgad /* 225127499Sgad * Exactly the same as `-ax'. This has been 226127499Sgad * added for compatability with SUSv3, but for 227127499Sgad * now it will not be described in the man page. 228127499Sgad */ 229127499Sgad nselectors++; 230127499Sgad all = xkeep = 1; 231127499Sgad break; 2321556Srgrimes case 'a': 233127499Sgad nselectors++; 2341556Srgrimes all = 1; 2351556Srgrimes break; 23619068Speter case 'C': 23719068Speter rawcpu = 1; 23819068Speter break; 23919068Speter case 'c': 24019068Speter cflag = 1; 24119068Speter break; 2421556Srgrimes case 'e': /* XXX set ufmt */ 2431556Srgrimes needenv = 1; 2441556Srgrimes break; 245127506Sgad#ifdef LAZY_PS 246127506Sgad case 'f': 247127506Sgad if (getuid() == 0 || getgid() == 0) 248127506Sgad forceuread = 1; 249127506Sgad break; 250127506Sgad#endif 251127499Sgad case 'G': 252127499Sgad add_list(&gidlist, optarg); 253127499Sgad xkeep_implied = 1; 254127499Sgad nselectors++; 255127499Sgad break; 256127499Sgad#if 0 257127499Sgad /* XXX - This SUSv3 option is still under debate. */ 258127499Sgad /* (it conflicts with the undocumented `-g' option) */ 2591556Srgrimes case 'g': 260127499Sgad add_list(&pgrplist, optarg); 261127499Sgad xkeep_implied = 1; 262127499Sgad nselectors++; 263127499Sgad break; 264127499Sgad#else 265127499Sgad case 'g': 266127499Sgad /* Historical BSD-ish (from SunOS) option */ 2671556Srgrimes break; /* no-op */ 268127499Sgad#endif 269116265Sscottl case 'H': 270126127Sdeischen showthreads = KERN_PROC_INC_THREAD; 271116265Sscottl break; 2721556Srgrimes case 'h': 2731556Srgrimes prtheader = ws.ws_row > 5 ? ws.ws_row : 22; 2741556Srgrimes break; 2751556Srgrimes case 'j': 276109502Sjmallett parsefmt(jfmt, 0); 27790143Smarkm _fmt = 1; 2781556Srgrimes jfmt[0] = '\0'; 2791556Srgrimes break; 2801556Srgrimes case 'L': 2811556Srgrimes showkey(); 2821556Srgrimes exit(0); 2831556Srgrimes case 'l': 284109502Sjmallett parsefmt(lfmt, 0); 28590143Smarkm _fmt = 1; 2861556Srgrimes lfmt[0] = '\0'; 2871556Srgrimes break; 2881556Srgrimes case 'M': 2891556Srgrimes memf = optarg; 29037317Sphk dropgid = 1; 2911556Srgrimes break; 2921556Srgrimes case 'm': 2931556Srgrimes sortby = SORTMEM; 2941556Srgrimes break; 2951556Srgrimes case 'N': 2961556Srgrimes nlistf = optarg; 29737317Sphk dropgid = 1; 2981556Srgrimes break; 2991556Srgrimes case 'O': 300109502Sjmallett parsefmt(o1, 1); 301109502Sjmallett parsefmt(optarg, 1); 302109502Sjmallett parsefmt(o2, 1); 3031556Srgrimes o1[0] = o2[0] = '\0'; 30490143Smarkm _fmt = 1; 3051556Srgrimes break; 3061556Srgrimes case 'o': 307109502Sjmallett parsefmt(optarg, 1); 30890143Smarkm _fmt = 1; 3091556Srgrimes break; 3101556Srgrimes case 'p': 311127499Sgad add_list(&pidlist, optarg); 312127499Sgad /* 313127499Sgad * Note: `-p' does not *set* xkeep, but any values 314127499Sgad * from pidlist are checked before xkeep is. That 315127499Sgad * way they are always matched, even if the user 316127499Sgad * specifies `-X'. 317127499Sgad */ 318127499Sgad nselectors++; 3191556Srgrimes break; 320127499Sgad#if 0 321127499Sgad /* XXX - This un-standard option is still under debate. */ 322127499Sgad case 'R': 323127499Sgad /* This is what SUSv3 defines as the `-U' option. */ 324127499Sgad add_list(&ruidlist, optarg); 325127499Sgad xkeep_implied = 1; 326127499Sgad nselectors++; 327127499Sgad break; 328127499Sgad#endif 3291556Srgrimes case 'r': 3301556Srgrimes sortby = SORTCPU; 3311556Srgrimes break; 3321556Srgrimes case 'S': 3331556Srgrimes sumrusage = 1; 3341556Srgrimes break; 335127499Sgad#if 0 336127499Sgad /* XXX - This non-standard option is still under debate. */ 337127499Sgad /* (it conflicts with `-s' in NetBSD) */ 338127499Sgad case 's': 339127499Sgad /* As seen on Solaris, Linux, IRIX. */ 340127499Sgad add_list(&sesslist, optarg); 341127499Sgad xkeep_implied = 1; 342127499Sgad nselectors++; 343127499Sgad break; 344127499Sgad#endif 3451556Srgrimes case 'T': 3461556Srgrimes if ((optarg = ttyname(STDIN_FILENO)) == NULL) 3471556Srgrimes errx(1, "stdin: not a terminal"); 3481556Srgrimes /* FALLTHROUGH */ 349127499Sgad case 't': 350127499Sgad add_list(&ttylist, optarg); 351127499Sgad xkeep_implied = 1; 352127499Sgad nselectors++; 3531556Srgrimes break; 35413020Speter case 'U': 355127499Sgad /* This is what SUSv3 defines as the `-u' option. */ 356127499Sgad add_list(&uidlist, optarg); 357127499Sgad xkeep_implied = 1; 358127499Sgad nselectors++; 35913020Speter break; 3601556Srgrimes case 'u': 361109502Sjmallett parsefmt(ufmt, 0); 3621556Srgrimes sortby = SORTCPU; 36390143Smarkm _fmt = 1; 3641556Srgrimes ufmt[0] = '\0'; 3651556Srgrimes break; 3661556Srgrimes case 'v': 367109502Sjmallett parsefmt(vfmt, 0); 3681556Srgrimes sortby = SORTMEM; 36990143Smarkm _fmt = 1; 3701556Srgrimes vfmt[0] = '\0'; 3711556Srgrimes break; 3721556Srgrimes case 'w': 3731556Srgrimes if (wflag) 3741556Srgrimes termwidth = UNLIMITED; 3751556Srgrimes else if (termwidth < 131) 3761556Srgrimes termwidth = 131; 3771556Srgrimes wflag++; 3781556Srgrimes break; 379127499Sgad case 'X': 380127499Sgad /* 381127499Sgad * Note that `-X' and `-x' are not standard "selector" 382127499Sgad * options. For most selector-options, we check *all* 383127499Sgad * processes to see if any are matched by the given 384127499Sgad * value(s). After we have a set of all the matched 385127499Sgad * processes, then `-X' and `-x' govern whether we 386127499Sgad * modify that *matched* set for processes which do 387127499Sgad * not have a controlling terminal. `-X' causes 388127499Sgad * those processes to be deleted from the matched 389127499Sgad * set, while `-x' causes them to be kept. 390127499Sgad */ 391127499Sgad xkeep = 0; 392127499Sgad break; 3931556Srgrimes case 'x': 394127499Sgad xkeep = 1; 3951556Srgrimes break; 39686922Sgreen case 'Z': 397109502Sjmallett parsefmt(Zfmt, 0); 39886922Sgreen Zfmt[0] = '\0'; 39986922Sgreen break; 4001556Srgrimes case '?': 4011556Srgrimes default: 4021556Srgrimes usage(); 4031556Srgrimes } 4041556Srgrimes argc -= optind; 4051556Srgrimes argv += optind; 4061556Srgrimes 407127499Sgad if (optfatal) 408127499Sgad exit(1); /* Error messages already printed */ 409127499Sgad 410127499Sgad if (xkeep < 0) /* Neither -X nor -x was specified */ 411127499Sgad xkeep = xkeep_implied; 412127499Sgad 4131556Srgrimes#define BACKWARD_COMPATIBILITY 4141556Srgrimes#ifdef BACKWARD_COMPATIBILITY 4151556Srgrimes if (*argv) { 4161556Srgrimes nlistf = *argv; 4171556Srgrimes if (*++argv) { 4181556Srgrimes memf = *argv; 4191556Srgrimes } 4201556Srgrimes } 4211556Srgrimes#endif 4221556Srgrimes /* 4231556Srgrimes * Discard setgid privileges if not the running kernel so that bad 4241556Srgrimes * guys can't print interesting stuff from kernel memory. 4251556Srgrimes */ 42637317Sphk if (dropgid) { 4271556Srgrimes setgid(getgid()); 42837317Sphk setuid(getuid()); 42937317Sphk } 4301556Srgrimes 43189909Sru kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf); 4321556Srgrimes if (kd == 0) 4331556Srgrimes errx(1, "%s", errbuf); 4341556Srgrimes 43590143Smarkm if (!_fmt) 436109502Sjmallett parsefmt(dfmt, 0); 4371556Srgrimes 438127499Sgad if (nselectors == 0) { 439127499Sgad uidlist.ptr = malloc(sizeof(uid_t)); 440127499Sgad if (uidlist.ptr == NULL) 44197877Sjmallett errx(1, "malloc failed"); 442127499Sgad nselectors = 1; 443127499Sgad uidlist.count = uidlist.maxcount = 1; 444127499Sgad *uidlist.uids = getuid(); 44566377Sbrian } 4461556Srgrimes 4471556Srgrimes /* 4481556Srgrimes * scan requested variables, noting what structures are needed, 44953170Skris * and adjusting header widths as appropriate. 4501556Srgrimes */ 4511556Srgrimes scanvars(); 452127499Sgad 4531556Srgrimes /* 454127499Sgad * Get process list. If the user requested just one selector- 455127499Sgad * option, then kvm_getprocs can be asked to return just those 456127499Sgad * processes. Otherwise, have it return all processes, and 457127499Sgad * then this routine will search that full list and select the 458127499Sgad * processes which match any of the user's selector-options. 4591556Srgrimes */ 460127499Sgad what = showthreads != 0 ? KERN_PROC_ALL : KERN_PROC_PROC; 461127499Sgad flag = 0; 462127499Sgad if (nselectors == 1) { 463127499Sgad /* XXX - Apparently there's no KERN_PROC_GID flag. */ 464127499Sgad if (pgrplist.count == 1) { 465127499Sgad what = KERN_PROC_PGRP | showthreads; 466127499Sgad flag = *pgrplist.pids; 467127499Sgad nselectors = 0; 468127499Sgad } else if (pidlist.count == 1) { 469127499Sgad what = KERN_PROC_PID | showthreads; 470127499Sgad flag = *pidlist.pids; 471127499Sgad nselectors = 0; 472127499Sgad } else if (ruidlist.count == 1) { 473127499Sgad what = KERN_PROC_RUID | showthreads; 474127499Sgad flag = *ruidlist.uids; 475127499Sgad nselectors = 0; 476127499Sgad#if 0 /* XXX - KERN_PROC_SESSION causes error in kvm_getprocs? */ 477127499Sgad } else if (sesslist.count == 1) { 478127499Sgad what = KERN_PROC_SESSION | showthreads; 479127499Sgad flag = *sesslist.pids; 480127499Sgad nselectors = 0; 481127499Sgad#endif 482127499Sgad } else if (ttylist.count == 1) { 483127499Sgad what = KERN_PROC_TTY | showthreads; 484127499Sgad flag = *ttylist.ttys; 485127499Sgad nselectors = 0; 486127499Sgad } else if (uidlist.count == 1) { 487127499Sgad what = KERN_PROC_UID | showthreads; 488127499Sgad flag = *uidlist.uids; 489127499Sgad nselectors = 0; 490127499Sgad } else if (all) { 491127499Sgad /* No need for this routine to select processes. */ 492127499Sgad nselectors = 0; 493127499Sgad } 4941556Srgrimes } 495126127Sdeischen 4961556Srgrimes /* 4971556Srgrimes * select procs 4981556Srgrimes */ 499127499Sgad nentries = -1; 500127149Sgad kp = kvm_getprocs(kd, what, flag, &nentries); 501127149Sgad if ((kp == 0 && nentries != 0) || nentries < 0) 5021556Srgrimes errx(1, "%s", kvm_geterr(kd)); 503127499Sgad nkept = 0; 504127149Sgad if (nentries > 0) { 505127149Sgad if ((kinfo = malloc(nentries * sizeof(*kinfo))) == NULL) 506127149Sgad errx(1, "malloc failed"); 507127149Sgad for (i = nentries; --i >= 0; ++kp) { 508127499Sgad /* 509127499Sgad * If the user specified multiple selection-criteria, 510127499Sgad * then keep any process matched by the inclusive OR 511127499Sgad * of all the selection-criteria given. 512127499Sgad */ 513127499Sgad if (pidlist.count > 0) { 514127499Sgad for (elem = 0; elem < pidlist.count; elem++) 515127499Sgad if (kp->ki_pid == pidlist.pids[elem]) 516127499Sgad goto keepit; 517127499Sgad } 518127499Sgad /* 519127499Sgad * Note that we had to process pidlist before 520127499Sgad * filtering out processes which do not have 521127499Sgad * a controlling terminal. 522127499Sgad */ 523127499Sgad if (xkeep == 0) { 524127499Sgad if ((kp->ki_tdev == NODEV || 525127499Sgad (kp->ki_flag & P_CONTROLT) == 0)) 526127499Sgad continue; 527127499Sgad } 528127499Sgad if (nselectors == 0) 529127499Sgad goto keepit; 530127499Sgad if (gidlist.count > 0) { 531127499Sgad for (elem = 0; elem < gidlist.count; elem++) 532127499Sgad if (kp->ki_rgid == gidlist.gids[elem]) 533127499Sgad goto keepit; 534127499Sgad } 535127499Sgad if (pgrplist.count > 0) { 536127499Sgad for (elem = 0; elem < pgrplist.count; elem++) 537127499Sgad if (kp->ki_pgid == pgrplist.pids[elem]) 538127499Sgad goto keepit; 539127499Sgad } 540127499Sgad if (ruidlist.count > 0) { 541127499Sgad for (elem = 0; elem < ruidlist.count; elem++) 542127499Sgad if (kp->ki_ruid == ruidlist.uids[elem]) 543127499Sgad goto keepit; 544127499Sgad } 545127499Sgad if (sesslist.count > 0) { 546127499Sgad for (elem = 0; elem < sesslist.count; elem++) 547127499Sgad if (kp->ki_sid == sesslist.pids[elem]) 548127499Sgad goto keepit; 549127499Sgad } 550127499Sgad if (ttylist.count > 0) { 551127499Sgad for (elem = 0; elem < ttylist.count; elem++) 552127499Sgad if (kp->ki_tdev == ttylist.ttys[elem]) 553127499Sgad goto keepit; 554127499Sgad } 555127499Sgad if (uidlist.count > 0) { 556127499Sgad for (elem = 0; elem < uidlist.count; elem++) 557127499Sgad if (kp->ki_uid == uidlist.uids[elem]) 558127499Sgad goto keepit; 559127499Sgad } 560127499Sgad /* 561127499Sgad * This process did not match any of the user's 562127499Sgad * selector-options, so skip the process. 563127499Sgad */ 564127499Sgad continue; 565127499Sgad 566127499Sgad keepit: 567127499Sgad kinfo[nkept].ki_p = kp; 568127149Sgad if (needuser) 569127499Sgad saveuser(&kinfo[nkept]); 570127499Sgad dynsizevars(&kinfo[nkept]); 571127499Sgad nkept++; 572127149Sgad } 5731556Srgrimes } 57425271Sjkh 57525271Sjkh sizevars(); 57625271Sjkh 5771556Srgrimes /* 5781556Srgrimes * print header 5791556Srgrimes */ 5801556Srgrimes printheader(); 581127499Sgad if (nkept == 0) 58262803Swill exit(1); 583127499Sgad 5841556Srgrimes /* 5851556Srgrimes * sort proc list 5861556Srgrimes */ 587127499Sgad qsort(kinfo, nkept, sizeof(KINFO), pscomp); 5881556Srgrimes /* 589127499Sgad * For each process, call each variable output function. 5901556Srgrimes */ 591127499Sgad for (i = lineno = 0; i < nkept; i++) { 5921556Srgrimes for (vent = vhead; vent; vent = vent->next) { 5931556Srgrimes (vent->var->oproc)(&kinfo[i], vent); 5941556Srgrimes if (vent->next != NULL) 5951556Srgrimes (void)putchar(' '); 5961556Srgrimes } 5971556Srgrimes (void)putchar('\n'); 5981556Srgrimes if (prtheader && lineno++ == prtheader - 4) { 5991556Srgrimes (void)putchar('\n'); 6001556Srgrimes printheader(); 6011556Srgrimes lineno = 0; 6021556Srgrimes } 6031556Srgrimes } 604127499Sgad free_list(&gidlist); 605127499Sgad free_list(&pidlist); 606127499Sgad free_list(&pgrplist); 607127499Sgad free_list(&ruidlist); 608127499Sgad free_list(&sesslist); 609127499Sgad free_list(&ttylist); 610127499Sgad free_list(&uidlist); 61166377Sbrian 6121556Srgrimes exit(eval); 6131556Srgrimes} 6141556Srgrimes 615127499Sgadstatic int 616127499Sgadaddelem_gid(struct listinfo *inf, const char *elem) 617127499Sgad{ 618127499Sgad struct group *grp; 619127499Sgad intmax_t ltemp; 620127499Sgad const char *nameorID; 621127499Sgad char *endp; 622127499Sgad 623127499Sgad if (*elem == '\0' || strlen(elem) >= MAXLOGNAME) { 624127499Sgad if (*elem == '\0') 625127499Sgad warnx("Invalid (zero-length) %s name", inf->lname); 626127499Sgad else 627127499Sgad warnx("%s name too long: %s", inf->lname, elem); 628127499Sgad optfatal = 1; 629127499Sgad return (0); /* Do not add this value */ 630127499Sgad } 631127499Sgad 632127499Sgad /* 633127499Sgad * SUSv3 states that `ps -G grouplist' should match "real-group 634127499Sgad * ID numbers", and does not mention group-names. I do want to 635127499Sgad * also support group-names, so this tries for a group-id first, 636127499Sgad * and only tries for a name if that doesn't work. This is the 637127499Sgad * opposite order of what is done in addelem_uid(), but in 638127499Sgad * practice the order would only matter for group-names which 639127499Sgad * are all-numeric. 640127499Sgad */ 641127499Sgad grp = NULL; 642127499Sgad nameorID = "named"; 643127499Sgad errno = 0; 644127499Sgad ltemp = strtol(elem, &endp, 10); 645127499Sgad if (errno == 0 && *endp == '\0' && ltemp >= 0 && ltemp <= GID_MAX) { 646127499Sgad nameorID = "name or ID matches"; 647127499Sgad grp = getgrgid((gid_t)ltemp); 648127499Sgad } 649127499Sgad if (grp == NULL) 650127499Sgad grp = getgrnam(elem); 651127499Sgad if (grp == NULL) { 652127499Sgad warnx("No %s %s '%s'", inf->lname, nameorID, elem); 653127499Sgad optfatal = 1; 654127499Sgad return (0); /* Do not add this value */ 655127499Sgad } 656127499Sgad 657127499Sgad if (inf->count >= inf->maxcount) 658127499Sgad expand_list(inf); 659127499Sgad inf->gids[(inf->count)++] = grp->gr_gid; 660127499Sgad return (1); 661127499Sgad} 662127499Sgad 663127149Sgad#define BSD_PID_MAX 99999 /* Copy of PID_MAX from sys/proc.h */ 664127499Sgadstatic int 665127499Sgadaddelem_pid(struct listinfo *inf, const char *elem) 666127149Sgad{ 667127149Sgad long tempid; 668127499Sgad char *endp; 669127149Sgad 670127499Sgad if (*elem == '\0') 671127499Sgad tempid = 0L; 672127499Sgad else { 673127499Sgad errno = 0; 674127499Sgad tempid = strtol(elem, &endp, 10); 675127499Sgad if (*endp != '\0' || tempid < 0 || elem == endp) { 676127499Sgad warnx("Invalid %s: %s", inf->lname, elem); 677127499Sgad errno = ERANGE; 678127499Sgad } else if (errno != 0 || tempid > BSD_PID_MAX) { 679127499Sgad warnx("%s too large: %s", inf->lname, elem); 680127499Sgad errno = ERANGE; 681127149Sgad } 682127499Sgad if (errno == ERANGE) { 683127499Sgad optfatal = 1; 684127499Sgad return (0); /* Do not add this value */ 685127149Sgad } 686127149Sgad } 687127149Sgad 688127499Sgad if (inf->count >= inf->maxcount) 689127499Sgad expand_list(inf); 690127499Sgad inf->pids[(inf->count)++] = tempid; 691127499Sgad return (1); 692127499Sgad} 693127499Sgad#undef BSD_PID_MAX 694127149Sgad 695127499Sgadstatic int 696127499Sgadaddelem_tty(struct listinfo *inf, const char *elem) 697127499Sgad{ 698127499Sgad char pathbuf[PATH_MAX]; 699127499Sgad struct stat sb; 700127499Sgad const char *ttypath; 701127499Sgad 702127499Sgad if (strcmp(elem, "co") == 0) 703127499Sgad ttypath = strdup(_PATH_CONSOLE); 704127499Sgad else if (*elem == '/') 705127499Sgad ttypath = elem; 706127499Sgad else { 707127499Sgad strlcpy(pathbuf, _PATH_TTY, sizeof(pathbuf)); 708127499Sgad strlcat(pathbuf, elem, sizeof(pathbuf)); 709127499Sgad ttypath = pathbuf; 710127499Sgad } 711127499Sgad 712127499Sgad if (stat(ttypath, &sb) == -1) { 713127499Sgad warn("%s", ttypath); 714127499Sgad optfatal = 1; 715127499Sgad return (0); /* Do not add this value */ 716127499Sgad } 717127499Sgad if (!S_ISCHR(sb.st_mode)) { 718127499Sgad warn("%s: Not a terminal", ttypath); 719127499Sgad optfatal = 1; 720127499Sgad return (0); /* Do not add this value */ 721127499Sgad } 722127499Sgad 723127499Sgad if (inf->count >= inf->maxcount) 724127499Sgad expand_list(inf); 725127499Sgad inf->ttys[(inf->count)++] = sb.st_rdev; 726127499Sgad return (1); 727127149Sgad} 728127149Sgad 729127499Sgadstatic int 730127499Sgadaddelem_uid(struct listinfo *inf, const char *elem) 73166377Sbrian{ 73266377Sbrian struct passwd *pwd; 733127499Sgad intmax_t ltemp; 734127499Sgad char *endp; 73566377Sbrian 736127499Sgad if (*elem == '\0' || strlen(elem) >= MAXLOGNAME) { 737127499Sgad if (*elem == '\0') 738127499Sgad warnx("Invalid (zero-length) %s name", inf->lname); 739127499Sgad else 740127499Sgad warnx("%s name too long: %s", inf->lname, elem); 741127499Sgad optfatal = 1; 742127499Sgad return (0); /* Do not add this value */ 743127499Sgad } 74466377Sbrian 745127499Sgad /* 746127499Sgad * XXX - In the following, should the warnings be fatal errors? 747127499Sgad * Historically they have been warnings, but I expect errors 748127499Sgad * would be more appropriate. A warning message might be 749127499Sgad * missed in a long `ps' listing, and the user would not 750127499Sgad * realize that they had mistyped a userid. Also, Solaris 751127499Sgad * and Linux treat these as errors. On the other hand, I 752127499Sgad * can imagine that some users *might* be used to the 753127499Sgad * present behavior. 754127499Sgad */ 755127499Sgad pwd = getpwnam(elem); 756127499Sgad if (pwd == NULL) { 757127499Sgad errno = 0; 758127499Sgad ltemp = strtol(elem, &endp, 10); 759127499Sgad if (errno != 0 || *endp != '\0' || ltemp < 0 || 760127499Sgad ltemp > UID_MAX) 761127499Sgad warnx("No %s named '%s'", inf->lname, elem); 762127499Sgad else { 763127499Sgad /* The string is all digits, so it might be a userID. */ 764127499Sgad pwd = getpwuid((uid_t)ltemp); 765127499Sgad if (pwd == NULL) 766127499Sgad warnx("No %s name or ID matches '%s'", 767127499Sgad inf->lname, elem); 76866377Sbrian } 769127499Sgad } 770127499Sgad if (pwd == NULL) { 771127499Sgad /* XXX: optfatal = 1; -- (see the above XXX) */ 772127499Sgad return (0); /* Do not add this value */ 773127499Sgad } 774127499Sgad 775127499Sgad if (inf->count >= inf->maxcount) 776127499Sgad expand_list(inf); 777127499Sgad inf->uids[(inf->count)++] = pwd->pw_uid; 778127499Sgad return (1); 779127499Sgad} 780127499Sgad 781127499Sgadstatic void 782127499Sgadadd_list(struct listinfo *inf, const char *argp) 783127499Sgad{ 784127499Sgad char elemcopy[PATH_MAX]; 785127499Sgad const char *savep; 786127499Sgad char *cp, *endp; 787127499Sgad int toolong; 788127499Sgad 789127499Sgad while (*argp != '\0') { 790127499Sgad while (*argp != '\0' && strchr(W_SEP, *argp) != NULL) 791127499Sgad argp++; 792127499Sgad savep = argp; 793127499Sgad toolong = 0; 794127499Sgad cp = elemcopy; 795127499Sgad if (strchr(T_SEP, *argp) == NULL) { 796127499Sgad endp = elemcopy + sizeof(elemcopy) - 1; 797127499Sgad while (*argp != '\0' && cp <= endp && 798127499Sgad strchr(W_SEP T_SEP, *argp) == NULL) 799127499Sgad *cp++ = *argp++; 800127499Sgad if (cp > endp) 801127499Sgad toolong = 1; 80266377Sbrian } 803127499Sgad if (!toolong) { 804127499Sgad *cp = '\0'; 805127499Sgad#ifndef ADD_PS_LISTRESET 806127499Sgad /* This is how the standard expects lists to be handled. */ 807127499Sgad inf->addelem(inf, elemcopy); 808127499Sgad#else 809127499Sgad /* 810127499Sgad * This would add a simple non-standard-but-convienent feature. 811127499Sgad * 812127499Sgad * XXX - Adding this check increased the total size of `ps' by 813127499Sgad * 3940 bytes on i386! That's 12% of the entire program! 814127499Sgad * The `ps.o' file grew by only about 40 bytes, but the 815127499Sgad * final (stripped) executable in /bin/ps grew by 12%. 816127499Sgad */ 817127499Sgad /* 818127499Sgad * We now have a single element. Add it to the 819127499Sgad * list, unless the element is ":". In that case, 820127499Sgad * reset the list so previous entries are ignored. 821127499Sgad */ 822127499Sgad if (strcmp(elemcopy, ":") == 0) 823127499Sgad inf->count = 0; 824127499Sgad else 825127499Sgad inf->addelem(inf, elemcopy); 826127499Sgad#endif 827127499Sgad } else { 828127499Sgad /* 829127499Sgad * The string is too long to copy. Find the end 830127499Sgad * of the string to print out the warning message. 831127499Sgad */ 832127499Sgad while (*argp != '\0' && strchr(W_SEP T_SEP, 833127499Sgad *argp) == NULL) 834127499Sgad argp++; 835127499Sgad warnx("Value too long: %.*s", (int)(argp - savep), 836127499Sgad savep); 837127499Sgad optfatal = 1; 83866377Sbrian } 839127499Sgad /* 840127499Sgad * Skip over any number of trailing whitespace characters, 841127499Sgad * but only one (at most) trailing element-terminating 842127499Sgad * character. 843127499Sgad */ 844127499Sgad while (*argp != '\0' && strchr(W_SEP, *argp) != NULL) 845127499Sgad argp++; 846127499Sgad if (*argp != '\0' && strchr(T_SEP, *argp) != NULL) { 847127499Sgad argp++; 848127499Sgad /* Catch case where string ended with a comma. */ 849127499Sgad if (*argp == '\0') 850127499Sgad inf->addelem(inf, argp); 851127499Sgad } 85266377Sbrian } 853127499Sgad} 85466377Sbrian 855127499Sgadstatic void * 856127499Sgadexpand_list(struct listinfo *inf) 857127499Sgad{ 858127499Sgad int newmax; 859127499Sgad void *newlist; 86066377Sbrian 861127499Sgad newmax = (inf->maxcount + 1) << 1; 862127499Sgad newlist = realloc(inf->ptr, newmax * inf->elemsize); 863127499Sgad if (newlist == NULL) { 864127499Sgad free(inf->ptr); 865127499Sgad errx(1, "realloc to %d %ss failed", newmax, 866127499Sgad inf->lname); 867127499Sgad } 868127499Sgad inf->maxcount = newmax; 869127499Sgad inf->ptr = newlist; 870127499Sgad 871127499Sgad return (newlist); 87266377Sbrian} 87366377Sbrian 874127499Sgadstatic void 875127499Sgadfree_list(struct listinfo *inf) 876127499Sgad{ 877127499Sgad 878127499Sgad inf->count = inf->elemsize = inf->maxcount = 0; 879127499Sgad if (inf->ptr != NULL) 880127499Sgad free(inf->ptr); 881127499Sgad inf->addelem = NULL; 882127499Sgad inf->lname = NULL; 883127499Sgad inf->ptr = NULL; 884127499Sgad} 885127499Sgad 886127499Sgadstatic void 887127499Sgadinit_list(struct listinfo *inf, addelem_rtn artn, int elemsize, 888127499Sgad const char *lname) 889127499Sgad{ 890127499Sgad 891127499Sgad inf->count = inf->maxcount = 0; 892127499Sgad inf->elemsize = elemsize; 893127499Sgad inf->addelem = artn; 894127499Sgad inf->lname = lname; 895127499Sgad inf->ptr = NULL; 896127499Sgad} 897127499Sgad 898109502SjmallettVARENT * 899109502Sjmallettfind_varentry(VAR *v) 900109502Sjmallett{ 901109502Sjmallett struct varent *vent; 902109502Sjmallett 903109502Sjmallett for (vent = vhead; vent; vent = vent->next) { 904109502Sjmallett if (strcmp(vent->var->name, v->name) == 0) 905109502Sjmallett return vent; 906109502Sjmallett } 907109502Sjmallett return NULL; 908109502Sjmallett} 909109502Sjmallett 9101556Srgrimesstatic void 91190110Simpscanvars(void) 9121556Srgrimes{ 9131556Srgrimes struct varent *vent; 9141556Srgrimes VAR *v; 91525271Sjkh 91625271Sjkh for (vent = vhead; vent; vent = vent->next) { 91725271Sjkh v = vent->var; 91825271Sjkh if (v->flag & DSIZ) { 91925271Sjkh v->dwidth = v->width; 92025271Sjkh v->width = 0; 92125271Sjkh } 92225271Sjkh if (v->flag & USER) 92325271Sjkh needuser = 1; 92425271Sjkh if (v->flag & COMM) 92525271Sjkh needcomm = 1; 92625271Sjkh } 92725271Sjkh} 92825271Sjkh 92925271Sjkhstatic void 93090110Simpdynsizevars(KINFO *ki) 93125271Sjkh{ 93225271Sjkh struct varent *vent; 93325271Sjkh VAR *v; 9341556Srgrimes int i; 9351556Srgrimes 9361556Srgrimes for (vent = vhead; vent; vent = vent->next) { 9371556Srgrimes v = vent->var; 93825271Sjkh if (!(v->flag & DSIZ)) 93925271Sjkh continue; 94025271Sjkh i = (v->sproc)( ki); 94125271Sjkh if (v->width < i) 94225271Sjkh v->width = i; 94325271Sjkh if (v->width > v->dwidth) 94425271Sjkh v->width = v->dwidth; 94525271Sjkh } 94625271Sjkh} 94725271Sjkh 94825271Sjkhstatic void 94990110Simpsizevars(void) 95025271Sjkh{ 95125271Sjkh struct varent *vent; 95225271Sjkh VAR *v; 95325271Sjkh int i; 95425271Sjkh 95525271Sjkh for (vent = vhead; vent; vent = vent->next) { 95625271Sjkh v = vent->var; 957109504Sjmallett i = strlen(vent->header); 9581556Srgrimes if (v->width < i) 9591556Srgrimes v->width = i; 9601556Srgrimes totwidth += v->width + 1; /* +1 for space */ 9611556Srgrimes } 9621556Srgrimes totwidth--; 9631556Srgrimes} 9641556Srgrimes 96590143Smarkmstatic const char * 96690110Simpfmt(char **(*fn)(kvm_t *, const struct kinfo_proc *, int), KINFO *ki, 96790110Simp char *comm, int maxlen) 9681556Srgrimes{ 96990143Smarkm const char *s; 9701556Srgrimes 97190143Smarkm s = fmt_argv((*fn)(kd, ki->ki_p, termwidth), comm, maxlen); 9721556Srgrimes return (s); 9731556Srgrimes} 9741556Srgrimes 97571578Sjhb#define UREADOK(ki) (forceuread || (ki->ki_p->ki_sflag & PS_INMEM)) 97631552Sdyson 9771556Srgrimesstatic void 97890110Simpsaveuser(KINFO *ki) 9791556Srgrimes{ 9801556Srgrimes 98171578Sjhb if (ki->ki_p->ki_sflag & PS_INMEM) { 9821556Srgrimes /* 9831556Srgrimes * The u-area might be swapped out, and we can't get 9841556Srgrimes * at it because we have a crashdump and no swap. 9851556Srgrimes * If it's here fill in these fields, otherwise, just 9861556Srgrimes * leave them 0. 9871556Srgrimes */ 98869896Smckusick ki->ki_valid = 1; 9891556Srgrimes } else 99069896Smckusick ki->ki_valid = 0; 9911556Srgrimes /* 9921556Srgrimes * save arguments if needed 9931556Srgrimes */ 99469896Smckusick if (needcomm && (UREADOK(ki) || (ki->ki_p->ki_args != NULL))) { 99590143Smarkm ki->ki_args = strdup(fmt(kvm_getargv, ki, ki->ki_p->ki_comm, 99690143Smarkm MAXCOMLEN)); 99731552Sdyson } else if (needcomm) { 99890143Smarkm asprintf(&ki->ki_args, "(%s)", ki->ki_p->ki_comm); 99953276Speter } else { 100053276Speter ki->ki_args = NULL; 100153276Speter } 100253276Speter if (needenv && UREADOK(ki)) { 100390143Smarkm ki->ki_env = strdup(fmt(kvm_getenvv, ki, (char *)NULL, 0)); 100453276Speter } else if (needenv) { 100553276Speter ki->ki_env = malloc(3); 100653276Speter strcpy(ki->ki_env, "()"); 100753276Speter } else { 100853276Speter ki->ki_env = NULL; 100953276Speter } 10101556Srgrimes} 10111556Srgrimes 10121556Srgrimesstatic int 101390110Simppscomp(const void *a, const void *b) 10141556Srgrimes{ 10151556Srgrimes int i; 101669896Smckusick#define VSIZE(k) ((k)->ki_p->ki_dsize + (k)->ki_p->ki_ssize + \ 101769896Smckusick (k)->ki_p->ki_tsize) 10181556Srgrimes 10191556Srgrimes if (sortby == SORTCPU) 102090143Smarkm return (getpcpu((const KINFO *)b) - getpcpu((const KINFO *)a)); 10211556Srgrimes if (sortby == SORTMEM) 102290143Smarkm return (VSIZE((const KINFO *)b) - VSIZE((const KINFO *)a)); 102390143Smarkm i = (int)((const KINFO *)a)->ki_p->ki_tdev - (int)((const KINFO *)b)->ki_p->ki_tdev; 10241556Srgrimes if (i == 0) 102590143Smarkm i = ((const KINFO *)a)->ki_p->ki_pid - ((const KINFO *)b)->ki_p->ki_pid; 10261556Srgrimes return (i); 10271556Srgrimes} 10281556Srgrimes 10291556Srgrimes/* 10301556Srgrimes * ICK (all for getopt), would rather hide the ugliness 10311556Srgrimes * here than taint the main code. 10321556Srgrimes * 10331556Srgrimes * ps foo -> ps -foo 10341556Srgrimes * ps 34 -> ps -p34 10351556Srgrimes * 10361556Srgrimes * The old convention that 't' with no trailing tty arg means the users 10371556Srgrimes * tty, is only supported if argv[1] doesn't begin with a '-'. This same 10381556Srgrimes * feature is available with the option 'T', which takes no argument. 10391556Srgrimes */ 10401556Srgrimesstatic char * 104190110Simpkludge_oldps_options(char *s) 10421556Srgrimes{ 1043102886Sjmallett int have_fmt; 10441556Srgrimes size_t len; 10451556Srgrimes char *newopts, *ns, *cp; 10461556Srgrimes 1047102886Sjmallett /* 1048102886Sjmallett * If we have an 'o' option, then note it, since we don't want to do 1049102886Sjmallett * some types of munging. 1050102886Sjmallett */ 1051102886Sjmallett have_fmt = index(s, 'o') != NULL; 1052102886Sjmallett 10531556Srgrimes len = strlen(s); 10541556Srgrimes if ((newopts = ns = malloc(len + 2)) == NULL) 105597877Sjmallett errx(1, "malloc failed"); 10561556Srgrimes /* 10571556Srgrimes * options begin with '-' 10581556Srgrimes */ 10591556Srgrimes if (*s != '-') 10601556Srgrimes *ns++ = '-'; /* add option flag */ 10611556Srgrimes /* 10621556Srgrimes * gaze to end of argv[1] 10631556Srgrimes */ 10641556Srgrimes cp = s + len - 1; 10651556Srgrimes /* 10661556Srgrimes * if last letter is a 't' flag with no argument (in the context 10671556Srgrimes * of the oldps options -- option string NOT starting with a '-' -- 10681556Srgrimes * then convert to 'T' (meaning *this* terminal, i.e. ttyname(0)). 106981743Sbrian * 107081743Sbrian * However, if a flag accepting a string argument is found in the 107181743Sbrian * option string, the remainder of the string is the argument to 107281743Sbrian * that flag; do not modify that argument. 10731556Srgrimes */ 107489909Sru if (strcspn(s, "MNOoU") == len && *cp == 't' && *s != '-') 10751556Srgrimes *cp = 'T'; 10761556Srgrimes else { 10771556Srgrimes /* 10781556Srgrimes * otherwise check for trailing number, which *may* be a 10791556Srgrimes * pid. 10801556Srgrimes */ 10811556Srgrimes while (cp >= s && isdigit(*cp)) 10821556Srgrimes --cp; 10831556Srgrimes } 10841556Srgrimes cp++; 10851556Srgrimes memmove(ns, s, (size_t)(cp - s)); /* copy up to trailing number */ 10861556Srgrimes ns += cp - s; 10871556Srgrimes /* 10881556Srgrimes * if there's a trailing number, and not a preceding 'p' (pid) or 10891556Srgrimes * 't' (tty) flag, then assume it's a pid and insert a 'p' flag. 10901556Srgrimes */ 10918855Srgrimes if (isdigit(*cp) && 10927165Sjoerg (cp == s || (cp[-1] != 't' && cp[-1] != 'p')) && 1093102886Sjmallett (cp - 1 == s || cp[-2] != 't') && !have_fmt) 10941556Srgrimes *ns++ = 'p'; 10951556Srgrimes (void)strcpy(ns, cp); /* and append the number */ 10961556Srgrimes 10971556Srgrimes return (newopts); 10981556Srgrimes} 10991556Srgrimes 11001556Srgrimesstatic void 110190110Simpusage(void) 11021556Srgrimes{ 11031556Srgrimes 1104127499Sgad (void)fprintf(stderr, "%s\n%s\n%s\n%s\n", 1105127499Sgad "usage: ps [-aCHhjlmrSTuvwXxZ] [-G gid[,gid]] [-O|o fmt]", 1106127499Sgad " [-p pid[,pid]] [-t tty[,tty]] [-U user[,user]]", 1107127499Sgad " [-M core] [-N system]", 110826465Scharnier " ps [-L]"); 11091556Srgrimes exit(1); 11101556Srgrimes} 1111