ps.c revision 99110
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. 321556Srgrimes */ 331556Srgrimes 341556Srgrimes#ifndef lint 3590143Smarkmstatic const char copyright[] = 361556Srgrimes"@(#) Copyright (c) 1990, 1993, 1994\n\ 371556Srgrimes The Regents of the University of California. All rights reserved.\n"; 381556Srgrimes#endif /* not lint */ 391556Srgrimes 4090143Smarkm#if 0 411556Srgrimes#ifndef lint 4236049Scharnierstatic char sccsid[] = "@(#)ps.c 8.4 (Berkeley) 4/2/94"; 4390143Smarkm#endif /* not lint */ 4436049Scharnier#endif 4599110Sobrien#include <sys/cdefs.h> 4699110Sobrien__FBSDID("$FreeBSD: head/bin/ps/ps.c 99110 2002-06-30 05:15:05Z obrien $"); 471556Srgrimes 481556Srgrimes#include <sys/param.h> 493296Sdg#include <sys/user.h> 501556Srgrimes#include <sys/stat.h> 511556Srgrimes#include <sys/ioctl.h> 521556Srgrimes#include <sys/sysctl.h> 531556Srgrimes 541556Srgrimes#include <ctype.h> 551556Srgrimes#include <err.h> 561556Srgrimes#include <fcntl.h> 571556Srgrimes#include <kvm.h> 5813514Smpp#include <limits.h> 5973367Sache#include <locale.h> 601556Srgrimes#include <paths.h> 6190143Smarkm#include <pwd.h> 621556Srgrimes#include <stdio.h> 631556Srgrimes#include <stdlib.h> 641556Srgrimes#include <string.h> 651556Srgrimes#include <unistd.h> 6666377Sbrian#include <utmp.h> 671556Srgrimes 6889389Ssobomax#include "lomac.h" 691556Srgrimes#include "ps.h" 701556Srgrimes 7166377Sbrian#define SEP ", \t" /* username separators */ 7266377Sbrian 7390143Smarkmstatic KINFO *kinfo; 7490143Smarkmstruct varent *vhead; 751556Srgrimes 761556Srgrimesint eval; /* exit value */ 7719068Speterint cflag; /* -c */ 781556Srgrimesint rawcpu; /* -C */ 791556Srgrimesint sumrusage; /* -S */ 801556Srgrimesint termwidth; /* width of screen (0 == infinity) */ 811556Srgrimesint totwidth; /* calculated width of requested variables */ 821556Srgrimes 8397966Sjmalletttime_t now; /* current time(3) value */ 8497966Sjmallett 851556Srgrimesstatic int needuser, needcomm, needenv; 8631552Sdyson#if defined(LAZY_PS) 8731552Sdysonstatic int forceuread=0; 8831552Sdyson#else 8931552Sdysonstatic int forceuread=1; 9031552Sdyson#endif 911556Srgrimes 9290143Smarkmstatic enum sort { DEFAULT, SORTMEM, SORTCPU } sortby = DEFAULT; 931556Srgrimes 9490143Smarkmstatic const char *fmt(char **(*)(kvm_t *, const struct kinfo_proc *, int), 9590110Simp KINFO *, char *, int); 9690110Simpstatic char *kludge_oldps_options(char *); 9790110Simpstatic int pscomp(const void *, const void *); 9890110Simpstatic void saveuser(KINFO *); 9990110Simpstatic void scanvars(void); 10090110Simpstatic void dynsizevars(KINFO *); 10190110Simpstatic void sizevars(void); 10290110Simpstatic void usage(void); 10366377Sbrianstatic uid_t *getuids(const char *, int *); 1041556Srgrimes 10597875Sjmallettstatic char dfmt[] = "pid,tt,state,time,command"; 10697875Sjmallettstatic char jfmt[] = "user,pid,ppid,pgid,jobc,state,tt,time,command"; 10797875Sjmallettstatic char lfmt[] = "uid,pid,ppid,cpu,pri,nice,vsz,rss,mwchan,state,tt,time,command"; 10890143Smarkmstatic char o1[] = "pid"; 10997875Sjmallettstatic char o2[] = "tt,state,time,command"; 11097875Sjmallettstatic char ufmt[] = "user,pid,%cpu,%mem,vsz,rss,tt,state,start,time,command"; 11197875Sjmallettstatic char vfmt[] = "pid,state,time,sl,re,pagein,vsz,rss,lim,tsiz,%cpu,%mem,command"; 11290143Smarkmstatic char Zfmt[] = "lvl"; 1131556Srgrimes 11490143Smarkmstatic kvm_t *kd; 1151556Srgrimes 11698494Ssobomax#if defined(LAZY_PS) 11798494Ssobomax#define PS_ARGS "aCcefghjLlM:mN:O:o:p:rSTt:U:uvwxZ" 11898494Ssobomax#else 11998494Ssobomax#define PS_ARGS "aCceghjLlM:mN:O:o:p:rSTt:U:uvwxZ" 12098494Ssobomax#endif 12198494Ssobomax 1221556Srgrimesint 12390110Simpmain(int argc, char *argv[]) 1241556Srgrimes{ 1251556Srgrimes struct kinfo_proc *kp; 1261556Srgrimes struct varent *vent; 1271556Srgrimes struct winsize ws; 1281556Srgrimes dev_t ttydev; 1291556Srgrimes pid_t pid; 13066377Sbrian uid_t *uids; 13198494Ssobomax int all, ch, flag, i, _fmt, lineno, nentries, nocludge, dropgid; 13266377Sbrian int prtheader, wflag, what, xflg, uid, nuids; 13397804Stjr char *cols; 13490143Smarkm char errbuf[_POSIX2_LINE_MAX]; 13598494Ssobomax const char *cp, *nlistf, *memf; 1361556Srgrimes 13711809Sache (void) setlocale(LC_ALL, ""); 13897966Sjmallett /* Set the time to what it is right now. */ 13997966Sjmallett time(&now); 14011809Sache 14197804Stjr if ((cols = getenv("COLUMNS")) != NULL && *cols != '\0') 14297804Stjr termwidth = atoi(cols); 14397804Stjr else if ((ioctl(STDOUT_FILENO, TIOCGWINSZ, (char *)&ws) == -1 && 1441556Srgrimes ioctl(STDERR_FILENO, TIOCGWINSZ, (char *)&ws) == -1 && 1451556Srgrimes ioctl(STDIN_FILENO, TIOCGWINSZ, (char *)&ws) == -1) || 1461556Srgrimes ws.ws_col == 0) 1471556Srgrimes termwidth = 79; 1481556Srgrimes else 1491556Srgrimes termwidth = ws.ws_col - 1; 1501556Srgrimes 15198494Ssobomax /* 15298494Ssobomax * Don't apply a kludge if the first argument is an option taking an 15398494Ssobomax * argument 15498494Ssobomax */ 15598494Ssobomax if (argc > 1) { 15698494Ssobomax nocludge = 0; 15798494Ssobomax if (argv[1][0] == '-') { 15898494Ssobomax for (cp = PS_ARGS; *cp != '\0'; cp++) { 15998494Ssobomax if (*cp != ':') 16098494Ssobomax continue; 16198494Ssobomax if (*(cp - 1) == argv[1][1]) { 16298494Ssobomax nocludge = 1; 16398494Ssobomax break; 16498494Ssobomax } 16598494Ssobomax } 16698494Ssobomax } 16798494Ssobomax if (nocludge == 0) 16898494Ssobomax argv[1] = kludge_oldps_options(argv[1]); 16998494Ssobomax } 1701556Srgrimes 17190143Smarkm all = _fmt = prtheader = wflag = xflg = 0; 1721556Srgrimes pid = -1; 17366377Sbrian nuids = 0; 17466377Sbrian uids = NULL; 1751556Srgrimes ttydev = NODEV; 17637317Sphk dropgid = 0; 17789909Sru memf = nlistf = _PATH_DEVNULL; 17898494Ssobomax while ((ch = getopt(argc, argv, PS_ARGS)) != -1) 1791556Srgrimes switch((char)ch) { 1801556Srgrimes case 'a': 1811556Srgrimes all = 1; 1821556Srgrimes break; 18319068Speter case 'C': 18419068Speter rawcpu = 1; 18519068Speter break; 18619068Speter case 'c': 18719068Speter cflag = 1; 18819068Speter break; 1891556Srgrimes case 'e': /* XXX set ufmt */ 1901556Srgrimes needenv = 1; 1911556Srgrimes break; 1921556Srgrimes case 'g': 1931556Srgrimes break; /* no-op */ 1941556Srgrimes case 'h': 1951556Srgrimes prtheader = ws.ws_row > 5 ? ws.ws_row : 22; 1961556Srgrimes break; 1971556Srgrimes case 'j': 1981556Srgrimes parsefmt(jfmt); 19990143Smarkm _fmt = 1; 2001556Srgrimes jfmt[0] = '\0'; 2011556Srgrimes break; 2021556Srgrimes case 'L': 2031556Srgrimes showkey(); 2041556Srgrimes exit(0); 2051556Srgrimes case 'l': 2061556Srgrimes parsefmt(lfmt); 20790143Smarkm _fmt = 1; 2081556Srgrimes lfmt[0] = '\0'; 2091556Srgrimes break; 2101556Srgrimes case 'M': 2111556Srgrimes memf = optarg; 21237317Sphk dropgid = 1; 2131556Srgrimes break; 2141556Srgrimes case 'm': 2151556Srgrimes sortby = SORTMEM; 2161556Srgrimes break; 2171556Srgrimes case 'N': 2181556Srgrimes nlistf = optarg; 21937317Sphk dropgid = 1; 2201556Srgrimes break; 2211556Srgrimes case 'O': 2221556Srgrimes parsefmt(o1); 2231556Srgrimes parsefmt(optarg); 2241556Srgrimes parsefmt(o2); 2251556Srgrimes o1[0] = o2[0] = '\0'; 22690143Smarkm _fmt = 1; 2271556Srgrimes break; 2281556Srgrimes case 'o': 2291556Srgrimes parsefmt(optarg); 23090143Smarkm _fmt = 1; 2311556Srgrimes break; 23231552Sdyson#if defined(LAZY_PS) 23331552Sdyson case 'f': 23431552Sdyson if (getuid() == 0 || getgid() == 0) 23531552Sdyson forceuread = 1; 23631552Sdyson break; 23731552Sdyson#endif 2381556Srgrimes case 'p': 2391556Srgrimes pid = atol(optarg); 2401556Srgrimes xflg = 1; 2411556Srgrimes break; 2421556Srgrimes case 'r': 2431556Srgrimes sortby = SORTCPU; 2441556Srgrimes break; 2451556Srgrimes case 'S': 2461556Srgrimes sumrusage = 1; 2471556Srgrimes break; 2481556Srgrimes case 'T': 2491556Srgrimes if ((optarg = ttyname(STDIN_FILENO)) == NULL) 2501556Srgrimes errx(1, "stdin: not a terminal"); 2511556Srgrimes /* FALLTHROUGH */ 2521556Srgrimes case 't': { 2531556Srgrimes struct stat sb; 25477459Simp char *ttypath, pathbuf[PATH_MAX]; 2551556Srgrimes 2561556Srgrimes if (strcmp(optarg, "co") == 0) 25790143Smarkm ttypath = strdup(_PATH_CONSOLE); 2581556Srgrimes else if (*optarg != '/') 2591556Srgrimes (void)snprintf(ttypath = pathbuf, 2601556Srgrimes sizeof(pathbuf), "%s%s", _PATH_TTY, optarg); 2611556Srgrimes else 2621556Srgrimes ttypath = optarg; 2631556Srgrimes if (stat(ttypath, &sb) == -1) 2641556Srgrimes err(1, "%s", ttypath); 2651556Srgrimes if (!S_ISCHR(sb.st_mode)) 2661556Srgrimes errx(1, "%s: not a terminal", ttypath); 2671556Srgrimes ttydev = sb.st_rdev; 2681556Srgrimes break; 2691556Srgrimes } 27013020Speter case 'U': 27166377Sbrian uids = getuids(optarg, &nuids); 27213020Speter xflg++; /* XXX: intuitive? */ 27313020Speter break; 2741556Srgrimes case 'u': 2751556Srgrimes parsefmt(ufmt); 2761556Srgrimes sortby = SORTCPU; 27790143Smarkm _fmt = 1; 2781556Srgrimes ufmt[0] = '\0'; 2791556Srgrimes break; 2801556Srgrimes case 'v': 2811556Srgrimes parsefmt(vfmt); 2821556Srgrimes sortby = SORTMEM; 28390143Smarkm _fmt = 1; 2841556Srgrimes vfmt[0] = '\0'; 2851556Srgrimes break; 2861556Srgrimes case 'w': 2871556Srgrimes if (wflag) 2881556Srgrimes termwidth = UNLIMITED; 2891556Srgrimes else if (termwidth < 131) 2901556Srgrimes termwidth = 131; 2911556Srgrimes wflag++; 2921556Srgrimes break; 2931556Srgrimes case 'x': 2941556Srgrimes xflg = 1; 2951556Srgrimes break; 29686922Sgreen case 'Z': 29786922Sgreen parsefmt(Zfmt); 29886922Sgreen Zfmt[0] = '\0'; 29986922Sgreen break; 3001556Srgrimes case '?': 3011556Srgrimes default: 3021556Srgrimes usage(); 3031556Srgrimes } 3041556Srgrimes argc -= optind; 3051556Srgrimes argv += optind; 3061556Srgrimes 3071556Srgrimes#define BACKWARD_COMPATIBILITY 3081556Srgrimes#ifdef BACKWARD_COMPATIBILITY 3091556Srgrimes if (*argv) { 3101556Srgrimes nlistf = *argv; 3111556Srgrimes if (*++argv) { 3121556Srgrimes memf = *argv; 3131556Srgrimes } 3141556Srgrimes } 3151556Srgrimes#endif 3161556Srgrimes /* 3171556Srgrimes * Discard setgid privileges if not the running kernel so that bad 3181556Srgrimes * guys can't print interesting stuff from kernel memory. 3191556Srgrimes */ 32037317Sphk if (dropgid) { 3211556Srgrimes setgid(getgid()); 32237317Sphk setuid(getuid()); 32337317Sphk } 3241556Srgrimes 32589909Sru kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf); 3261556Srgrimes if (kd == 0) 3271556Srgrimes errx(1, "%s", errbuf); 3281556Srgrimes 32990143Smarkm if (!_fmt) 3301556Srgrimes parsefmt(dfmt); 3311556Srgrimes 33213020Speter /* XXX - should be cleaner */ 33366377Sbrian if (!all && ttydev == NODEV && pid == -1 && !nuids) { 33466377Sbrian if ((uids = malloc(sizeof (*uids))) == NULL) 33597877Sjmallett errx(1, "malloc failed"); 33666377Sbrian nuids = 1; 33766377Sbrian *uids = getuid(); 33866377Sbrian } 3391556Srgrimes 3401556Srgrimes /* 3411556Srgrimes * scan requested variables, noting what structures are needed, 34253170Skris * and adjusting header widths as appropriate. 3431556Srgrimes */ 3441556Srgrimes scanvars(); 3451556Srgrimes /* 3461556Srgrimes * get proc list 3471556Srgrimes */ 34866377Sbrian if (nuids == 1) { 3491556Srgrimes what = KERN_PROC_UID; 35066377Sbrian flag = *uids; 3511556Srgrimes } else if (ttydev != NODEV) { 3521556Srgrimes what = KERN_PROC_TTY; 3531556Srgrimes flag = ttydev; 3541556Srgrimes } else if (pid != -1) { 3551556Srgrimes what = KERN_PROC_PID; 3561556Srgrimes flag = pid; 3571556Srgrimes } else { 3581556Srgrimes what = KERN_PROC_ALL; 3591556Srgrimes flag = 0; 3601556Srgrimes } 3611556Srgrimes /* 3621556Srgrimes * select procs 3631556Srgrimes */ 36482267Speter if ((kp = kvm_getprocs(kd, what, flag, &nentries)) == 0 || nentries < 0) 3651556Srgrimes errx(1, "%s", kvm_geterr(kd)); 3661556Srgrimes if ((kinfo = malloc(nentries * sizeof(*kinfo))) == NULL) 36797877Sjmallett errx(1, "malloc failed"); 3681556Srgrimes for (i = nentries; --i >= 0; ++kp) { 3691556Srgrimes kinfo[i].ki_p = kp; 3701556Srgrimes if (needuser) 3711556Srgrimes saveuser(&kinfo[i]); 37225271Sjkh dynsizevars(&kinfo[i]); 3731556Srgrimes } 37425271Sjkh 37525271Sjkh sizevars(); 37625271Sjkh 3771556Srgrimes /* 3781556Srgrimes * print header 3791556Srgrimes */ 3801556Srgrimes printheader(); 3811556Srgrimes if (nentries == 0) 38262803Swill exit(1); 3831556Srgrimes /* 3841556Srgrimes * sort proc list 3851556Srgrimes */ 3861556Srgrimes qsort(kinfo, nentries, sizeof(KINFO), pscomp); 3871556Srgrimes /* 3881556Srgrimes * for each proc, call each variable output function. 3891556Srgrimes */ 3901556Srgrimes for (i = lineno = 0; i < nentries; i++) { 39169896Smckusick if (xflg == 0 && ((&kinfo[i])->ki_p->ki_tdev == NODEV || 39269896Smckusick ((&kinfo[i])->ki_p->ki_flag & P_CONTROLT ) == 0)) 3931556Srgrimes continue; 39466377Sbrian if (nuids > 1) { 39566377Sbrian for (uid = 0; uid < nuids; uid++) 39669896Smckusick if ((&kinfo[i])->ki_p->ki_uid == uids[uid]) 39766377Sbrian break; 39866377Sbrian if (uid == nuids) 39966377Sbrian continue; 40066377Sbrian } 4011556Srgrimes for (vent = vhead; vent; vent = vent->next) { 4021556Srgrimes (vent->var->oproc)(&kinfo[i], vent); 4031556Srgrimes if (vent->next != NULL) 4041556Srgrimes (void)putchar(' '); 4051556Srgrimes } 4061556Srgrimes (void)putchar('\n'); 4071556Srgrimes if (prtheader && lineno++ == prtheader - 4) { 4081556Srgrimes (void)putchar('\n'); 4091556Srgrimes printheader(); 4101556Srgrimes lineno = 0; 4111556Srgrimes } 4121556Srgrimes } 41366377Sbrian free(uids); 41486922Sgreen lomac_stop(); 41566377Sbrian 4161556Srgrimes exit(eval); 4171556Srgrimes} 4181556Srgrimes 41966377Sbrianuid_t * 42066377Sbriangetuids(const char *arg, int *nuids) 42166377Sbrian{ 42266377Sbrian char name[UT_NAMESIZE + 1]; 42366377Sbrian struct passwd *pwd; 42466377Sbrian uid_t *uids, *moreuids; 42590143Smarkm int alloc; 42690143Smarkm size_t l; 42766377Sbrian 42866377Sbrian 42966377Sbrian alloc = 0; 43066377Sbrian *nuids = 0; 43166377Sbrian uids = NULL; 43266377Sbrian for (; (l = strcspn(arg, SEP)) > 0; arg += l + strspn(arg + l, SEP)) { 43366377Sbrian if (l >= sizeof name) { 43490143Smarkm warnx("%.*s: name too long", (int)l, arg); 43566377Sbrian continue; 43666377Sbrian } 43766377Sbrian strncpy(name, arg, l); 43866377Sbrian name[l] = '\0'; 43966377Sbrian if ((pwd = getpwnam(name)) == NULL) { 44066377Sbrian warnx("%s: no such user", name); 44166377Sbrian continue; 44266377Sbrian } 44366377Sbrian if (*nuids >= alloc) { 44466377Sbrian alloc = (alloc + 1) << 1; 44566377Sbrian moreuids = realloc(uids, alloc * sizeof (*uids)); 44666377Sbrian if (moreuids == NULL) { 44766377Sbrian free(uids); 44897877Sjmallett errx(1, "realloc failed"); 44966377Sbrian } 45066377Sbrian uids = moreuids; 45166377Sbrian } 45266377Sbrian uids[(*nuids)++] = pwd->pw_uid; 45366377Sbrian } 45466377Sbrian endpwent(); 45566377Sbrian 45666377Sbrian if (!*nuids) 45766377Sbrian errx(1, "No users specified"); 45866377Sbrian 45966377Sbrian return uids; 46066377Sbrian} 46166377Sbrian 4621556Srgrimesstatic void 46390110Simpscanvars(void) 4641556Srgrimes{ 4651556Srgrimes struct varent *vent; 4661556Srgrimes VAR *v; 46725271Sjkh 46825271Sjkh for (vent = vhead; vent; vent = vent->next) { 46925271Sjkh v = vent->var; 47025271Sjkh if (v->flag & DSIZ) { 47125271Sjkh v->dwidth = v->width; 47225271Sjkh v->width = 0; 47325271Sjkh } 47425271Sjkh if (v->flag & USER) 47525271Sjkh needuser = 1; 47625271Sjkh if (v->flag & COMM) 47725271Sjkh needcomm = 1; 47825271Sjkh } 47925271Sjkh} 48025271Sjkh 48125271Sjkhstatic void 48290110Simpdynsizevars(KINFO *ki) 48325271Sjkh{ 48425271Sjkh struct varent *vent; 48525271Sjkh VAR *v; 4861556Srgrimes int i; 4871556Srgrimes 4881556Srgrimes for (vent = vhead; vent; vent = vent->next) { 4891556Srgrimes v = vent->var; 49025271Sjkh if (!(v->flag & DSIZ)) 49125271Sjkh continue; 49225271Sjkh i = (v->sproc)( ki); 49325271Sjkh if (v->width < i) 49425271Sjkh v->width = i; 49525271Sjkh if (v->width > v->dwidth) 49625271Sjkh v->width = v->dwidth; 49725271Sjkh } 49825271Sjkh} 49925271Sjkh 50025271Sjkhstatic void 50190110Simpsizevars(void) 50225271Sjkh{ 50325271Sjkh struct varent *vent; 50425271Sjkh VAR *v; 50525271Sjkh int i; 50625271Sjkh 50725271Sjkh for (vent = vhead; vent; vent = vent->next) { 50825271Sjkh v = vent->var; 5091556Srgrimes i = strlen(v->header); 5101556Srgrimes if (v->width < i) 5111556Srgrimes v->width = i; 5121556Srgrimes totwidth += v->width + 1; /* +1 for space */ 5131556Srgrimes } 5141556Srgrimes totwidth--; 5151556Srgrimes} 5161556Srgrimes 51790143Smarkmstatic const char * 51890110Simpfmt(char **(*fn)(kvm_t *, const struct kinfo_proc *, int), KINFO *ki, 51990110Simp char *comm, int maxlen) 5201556Srgrimes{ 52190143Smarkm const char *s; 5221556Srgrimes 52390143Smarkm s = fmt_argv((*fn)(kd, ki->ki_p, termwidth), comm, maxlen); 5241556Srgrimes return (s); 5251556Srgrimes} 5261556Srgrimes 52771578Sjhb#define UREADOK(ki) (forceuread || (ki->ki_p->ki_sflag & PS_INMEM)) 52831552Sdyson 5291556Srgrimesstatic void 53090110Simpsaveuser(KINFO *ki) 5311556Srgrimes{ 5321556Srgrimes 53371578Sjhb if (ki->ki_p->ki_sflag & PS_INMEM) { 5341556Srgrimes /* 5351556Srgrimes * The u-area might be swapped out, and we can't get 5361556Srgrimes * at it because we have a crashdump and no swap. 5371556Srgrimes * If it's here fill in these fields, otherwise, just 5381556Srgrimes * leave them 0. 5391556Srgrimes */ 54069896Smckusick ki->ki_valid = 1; 5411556Srgrimes } else 54269896Smckusick ki->ki_valid = 0; 5431556Srgrimes /* 5441556Srgrimes * save arguments if needed 5451556Srgrimes */ 54669896Smckusick if (needcomm && (UREADOK(ki) || (ki->ki_p->ki_args != NULL))) { 54790143Smarkm ki->ki_args = strdup(fmt(kvm_getargv, ki, ki->ki_p->ki_comm, 54890143Smarkm MAXCOMLEN)); 54931552Sdyson } else if (needcomm) { 55090143Smarkm asprintf(&ki->ki_args, "(%s)", ki->ki_p->ki_comm); 55153276Speter } else { 55253276Speter ki->ki_args = NULL; 55353276Speter } 55453276Speter if (needenv && UREADOK(ki)) { 55590143Smarkm ki->ki_env = strdup(fmt(kvm_getenvv, ki, (char *)NULL, 0)); 55653276Speter } else if (needenv) { 55753276Speter ki->ki_env = malloc(3); 55853276Speter strcpy(ki->ki_env, "()"); 55953276Speter } else { 56053276Speter ki->ki_env = NULL; 56153276Speter } 5621556Srgrimes} 5631556Srgrimes 5641556Srgrimesstatic int 56590110Simppscomp(const void *a, const void *b) 5661556Srgrimes{ 5671556Srgrimes int i; 56869896Smckusick#define VSIZE(k) ((k)->ki_p->ki_dsize + (k)->ki_p->ki_ssize + \ 56969896Smckusick (k)->ki_p->ki_tsize) 5701556Srgrimes 5711556Srgrimes if (sortby == SORTCPU) 57290143Smarkm return (getpcpu((const KINFO *)b) - getpcpu((const KINFO *)a)); 5731556Srgrimes if (sortby == SORTMEM) 57490143Smarkm return (VSIZE((const KINFO *)b) - VSIZE((const KINFO *)a)); 57590143Smarkm i = (int)((const KINFO *)a)->ki_p->ki_tdev - (int)((const KINFO *)b)->ki_p->ki_tdev; 5761556Srgrimes if (i == 0) 57790143Smarkm i = ((const KINFO *)a)->ki_p->ki_pid - ((const KINFO *)b)->ki_p->ki_pid; 5781556Srgrimes return (i); 5791556Srgrimes} 5801556Srgrimes 5811556Srgrimes/* 5821556Srgrimes * ICK (all for getopt), would rather hide the ugliness 5831556Srgrimes * here than taint the main code. 5841556Srgrimes * 5851556Srgrimes * ps foo -> ps -foo 5861556Srgrimes * ps 34 -> ps -p34 5871556Srgrimes * 5881556Srgrimes * The old convention that 't' with no trailing tty arg means the users 5891556Srgrimes * tty, is only supported if argv[1] doesn't begin with a '-'. This same 5901556Srgrimes * feature is available with the option 'T', which takes no argument. 5911556Srgrimes */ 5921556Srgrimesstatic char * 59390110Simpkludge_oldps_options(char *s) 5941556Srgrimes{ 5951556Srgrimes size_t len; 5961556Srgrimes char *newopts, *ns, *cp; 5971556Srgrimes 5981556Srgrimes len = strlen(s); 5991556Srgrimes if ((newopts = ns = malloc(len + 2)) == NULL) 60097877Sjmallett errx(1, "malloc failed"); 6011556Srgrimes /* 6021556Srgrimes * options begin with '-' 6031556Srgrimes */ 6041556Srgrimes if (*s != '-') 6051556Srgrimes *ns++ = '-'; /* add option flag */ 6061556Srgrimes /* 6071556Srgrimes * gaze to end of argv[1] 6081556Srgrimes */ 6091556Srgrimes cp = s + len - 1; 6101556Srgrimes /* 6111556Srgrimes * if last letter is a 't' flag with no argument (in the context 6121556Srgrimes * of the oldps options -- option string NOT starting with a '-' -- 6131556Srgrimes * then convert to 'T' (meaning *this* terminal, i.e. ttyname(0)). 61481743Sbrian * 61581743Sbrian * However, if a flag accepting a string argument is found in the 61681743Sbrian * option string, the remainder of the string is the argument to 61781743Sbrian * that flag; do not modify that argument. 6181556Srgrimes */ 61989909Sru if (strcspn(s, "MNOoU") == len && *cp == 't' && *s != '-') 6201556Srgrimes *cp = 'T'; 6211556Srgrimes else { 6221556Srgrimes /* 6231556Srgrimes * otherwise check for trailing number, which *may* be a 6241556Srgrimes * pid. 6251556Srgrimes */ 6261556Srgrimes while (cp >= s && isdigit(*cp)) 6271556Srgrimes --cp; 6281556Srgrimes } 6291556Srgrimes cp++; 6301556Srgrimes memmove(ns, s, (size_t)(cp - s)); /* copy up to trailing number */ 6311556Srgrimes ns += cp - s; 6321556Srgrimes /* 6331556Srgrimes * if there's a trailing number, and not a preceding 'p' (pid) or 6341556Srgrimes * 't' (tty) flag, then assume it's a pid and insert a 'p' flag. 6351556Srgrimes */ 6368855Srgrimes if (isdigit(*cp) && 6377165Sjoerg (cp == s || (cp[-1] != 't' && cp[-1] != 'p')) && 6387165Sjoerg (cp - 1 == s || cp[-2] != 't')) 6391556Srgrimes *ns++ = 'p'; 6401556Srgrimes (void)strcpy(ns, cp); /* and append the number */ 6411556Srgrimes 6421556Srgrimes return (newopts); 6431556Srgrimes} 6441556Srgrimes 6451556Srgrimesstatic void 64690110Simpusage(void) 6471556Srgrimes{ 6481556Srgrimes 64926465Scharnier (void)fprintf(stderr, "%s\n%s\n%s\n", 65026465Scharnier "usage: ps [-aChjlmrSTuvwx] [-O|o fmt] [-p pid] [-t tty] [-U user]", 65189909Sru " [-M core] [-N system]", 65226465Scharnier " ps [-L]"); 6531556Srgrimes exit(1); 6541556Srgrimes} 655