ps.c revision 110391
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 45110391Scharnier 4699110Sobrien#include <sys/cdefs.h> 4799110Sobrien__FBSDID("$FreeBSD: head/bin/ps/ps.c 110391 2003-02-05 13:18:17Z charnier $"); 481556Srgrimes 491556Srgrimes#include <sys/param.h> 503296Sdg#include <sys/user.h> 511556Srgrimes#include <sys/stat.h> 521556Srgrimes#include <sys/ioctl.h> 531556Srgrimes#include <sys/sysctl.h> 541556Srgrimes 551556Srgrimes#include <ctype.h> 561556Srgrimes#include <err.h> 571556Srgrimes#include <fcntl.h> 581556Srgrimes#include <kvm.h> 5913514Smpp#include <limits.h> 6073367Sache#include <locale.h> 611556Srgrimes#include <paths.h> 6290143Smarkm#include <pwd.h> 631556Srgrimes#include <stdio.h> 641556Srgrimes#include <stdlib.h> 651556Srgrimes#include <string.h> 661556Srgrimes#include <unistd.h> 671556Srgrimes 681556Srgrimes#include "ps.h" 691556Srgrimes 7066377Sbrian#define SEP ", \t" /* username separators */ 7166377Sbrian 7290143Smarkmstatic KINFO *kinfo; 7390143Smarkmstruct varent *vhead; 741556Srgrimes 751556Srgrimesint eval; /* exit value */ 7619068Speterint cflag; /* -c */ 771556Srgrimesint rawcpu; /* -C */ 781556Srgrimesint sumrusage; /* -S */ 791556Srgrimesint termwidth; /* width of screen (0 == infinity) */ 801556Srgrimesint totwidth; /* calculated width of requested variables */ 811556Srgrimes 8297966Sjmalletttime_t now; /* current time(3) value */ 8397966Sjmallett 841556Srgrimesstatic int needuser, needcomm, needenv; 8531552Sdyson#if defined(LAZY_PS) 8631552Sdysonstatic int forceuread=0; 8731552Sdyson#else 8831552Sdysonstatic int forceuread=1; 8931552Sdyson#endif 901556Srgrimes 9190143Smarkmstatic enum sort { DEFAULT, SORTMEM, SORTCPU } sortby = DEFAULT; 921556Srgrimes 9390143Smarkmstatic const char *fmt(char **(*)(kvm_t *, const struct kinfo_proc *, int), 9490110Simp KINFO *, char *, int); 9590110Simpstatic char *kludge_oldps_options(char *); 9690110Simpstatic int pscomp(const void *, const void *); 9790110Simpstatic void saveuser(KINFO *); 9890110Simpstatic void scanvars(void); 9990110Simpstatic void dynsizevars(KINFO *); 10090110Simpstatic void sizevars(void); 10190110Simpstatic void usage(void); 10266377Sbrianstatic uid_t *getuids(const char *, int *); 1031556Srgrimes 10497875Sjmallettstatic char dfmt[] = "pid,tt,state,time,command"; 10597875Sjmallettstatic char jfmt[] = "user,pid,ppid,pgid,jobc,state,tt,time,command"; 10697875Sjmallettstatic char lfmt[] = "uid,pid,ppid,cpu,pri,nice,vsz,rss,mwchan,state,tt,time,command"; 10790143Smarkmstatic char o1[] = "pid"; 10897875Sjmallettstatic char o2[] = "tt,state,time,command"; 10997875Sjmallettstatic char ufmt[] = "user,pid,%cpu,%mem,vsz,rss,tt,state,start,time,command"; 11097875Sjmallettstatic char vfmt[] = "pid,state,time,sl,re,pagein,vsz,rss,lim,tsiz,%cpu,%mem,command"; 111105831Srwatsonstatic char Zfmt[] = "label"; 1121556Srgrimes 11390143Smarkmstatic kvm_t *kd; 1141556Srgrimes 11598494Ssobomax#if defined(LAZY_PS) 11698494Ssobomax#define PS_ARGS "aCcefghjLlM:mN:O:o:p:rSTt:U:uvwxZ" 11798494Ssobomax#else 11898494Ssobomax#define PS_ARGS "aCceghjLlM:mN:O:o:p:rSTt:U:uvwxZ" 11998494Ssobomax#endif 12098494Ssobomax 1211556Srgrimesint 12290110Simpmain(int argc, char *argv[]) 1231556Srgrimes{ 1241556Srgrimes struct kinfo_proc *kp; 1251556Srgrimes struct varent *vent; 1261556Srgrimes struct winsize ws; 1271556Srgrimes dev_t ttydev; 1281556Srgrimes pid_t pid; 12966377Sbrian uid_t *uids; 13098494Ssobomax int all, ch, flag, i, _fmt, lineno, nentries, nocludge, dropgid; 13166377Sbrian int prtheader, wflag, what, xflg, uid, nuids; 13297804Stjr char *cols; 13390143Smarkm char errbuf[_POSIX2_LINE_MAX]; 13498494Ssobomax const char *cp, *nlistf, *memf; 1351556Srgrimes 13611809Sache (void) setlocale(LC_ALL, ""); 13797966Sjmallett /* Set the time to what it is right now. */ 13897966Sjmallett time(&now); 13911809Sache 14097804Stjr if ((cols = getenv("COLUMNS")) != NULL && *cols != '\0') 14197804Stjr termwidth = atoi(cols); 14297804Stjr else if ((ioctl(STDOUT_FILENO, TIOCGWINSZ, (char *)&ws) == -1 && 1431556Srgrimes ioctl(STDERR_FILENO, TIOCGWINSZ, (char *)&ws) == -1 && 1441556Srgrimes ioctl(STDIN_FILENO, TIOCGWINSZ, (char *)&ws) == -1) || 1451556Srgrimes ws.ws_col == 0) 1461556Srgrimes termwidth = 79; 1471556Srgrimes else 1481556Srgrimes termwidth = ws.ws_col - 1; 1491556Srgrimes 15098494Ssobomax /* 15198494Ssobomax * Don't apply a kludge if the first argument is an option taking an 15298494Ssobomax * argument 15398494Ssobomax */ 15498494Ssobomax if (argc > 1) { 15598494Ssobomax nocludge = 0; 15698494Ssobomax if (argv[1][0] == '-') { 15798494Ssobomax for (cp = PS_ARGS; *cp != '\0'; cp++) { 15898494Ssobomax if (*cp != ':') 15998494Ssobomax continue; 16098494Ssobomax if (*(cp - 1) == argv[1][1]) { 16198494Ssobomax nocludge = 1; 16298494Ssobomax break; 16398494Ssobomax } 16498494Ssobomax } 16598494Ssobomax } 16698494Ssobomax if (nocludge == 0) 16798494Ssobomax argv[1] = kludge_oldps_options(argv[1]); 16898494Ssobomax } 1691556Srgrimes 17090143Smarkm all = _fmt = prtheader = wflag = xflg = 0; 1711556Srgrimes pid = -1; 17266377Sbrian nuids = 0; 17366377Sbrian uids = NULL; 1741556Srgrimes ttydev = NODEV; 17537317Sphk dropgid = 0; 17689909Sru memf = nlistf = _PATH_DEVNULL; 17798494Ssobomax while ((ch = getopt(argc, argv, PS_ARGS)) != -1) 1781556Srgrimes switch((char)ch) { 1791556Srgrimes case 'a': 1801556Srgrimes all = 1; 1811556Srgrimes break; 18219068Speter case 'C': 18319068Speter rawcpu = 1; 18419068Speter break; 18519068Speter case 'c': 18619068Speter cflag = 1; 18719068Speter break; 1881556Srgrimes case 'e': /* XXX set ufmt */ 1891556Srgrimes needenv = 1; 1901556Srgrimes break; 1911556Srgrimes case 'g': 1921556Srgrimes break; /* no-op */ 1931556Srgrimes case 'h': 1941556Srgrimes prtheader = ws.ws_row > 5 ? ws.ws_row : 22; 1951556Srgrimes break; 1961556Srgrimes case 'j': 197109502Sjmallett parsefmt(jfmt, 0); 19890143Smarkm _fmt = 1; 1991556Srgrimes jfmt[0] = '\0'; 2001556Srgrimes break; 2011556Srgrimes case 'L': 2021556Srgrimes showkey(); 2031556Srgrimes exit(0); 2041556Srgrimes case 'l': 205109502Sjmallett parsefmt(lfmt, 0); 20690143Smarkm _fmt = 1; 2071556Srgrimes lfmt[0] = '\0'; 2081556Srgrimes break; 2091556Srgrimes case 'M': 2101556Srgrimes memf = optarg; 21137317Sphk dropgid = 1; 2121556Srgrimes break; 2131556Srgrimes case 'm': 2141556Srgrimes sortby = SORTMEM; 2151556Srgrimes break; 2161556Srgrimes case 'N': 2171556Srgrimes nlistf = optarg; 21837317Sphk dropgid = 1; 2191556Srgrimes break; 2201556Srgrimes case 'O': 221109502Sjmallett parsefmt(o1, 1); 222109502Sjmallett parsefmt(optarg, 1); 223109502Sjmallett parsefmt(o2, 1); 2241556Srgrimes o1[0] = o2[0] = '\0'; 22590143Smarkm _fmt = 1; 2261556Srgrimes break; 2271556Srgrimes case 'o': 228109502Sjmallett parsefmt(optarg, 1); 22990143Smarkm _fmt = 1; 2301556Srgrimes break; 23131552Sdyson#if defined(LAZY_PS) 23231552Sdyson case 'f': 23331552Sdyson if (getuid() == 0 || getgid() == 0) 23431552Sdyson forceuread = 1; 23531552Sdyson break; 23631552Sdyson#endif 2371556Srgrimes case 'p': 2381556Srgrimes pid = atol(optarg); 2391556Srgrimes xflg = 1; 2401556Srgrimes break; 2411556Srgrimes case 'r': 2421556Srgrimes sortby = SORTCPU; 2431556Srgrimes break; 2441556Srgrimes case 'S': 2451556Srgrimes sumrusage = 1; 2461556Srgrimes break; 2471556Srgrimes case 'T': 2481556Srgrimes if ((optarg = ttyname(STDIN_FILENO)) == NULL) 2491556Srgrimes errx(1, "stdin: not a terminal"); 2501556Srgrimes /* FALLTHROUGH */ 2511556Srgrimes case 't': { 2521556Srgrimes struct stat sb; 25377459Simp char *ttypath, pathbuf[PATH_MAX]; 2541556Srgrimes 2551556Srgrimes if (strcmp(optarg, "co") == 0) 25690143Smarkm ttypath = strdup(_PATH_CONSOLE); 2571556Srgrimes else if (*optarg != '/') 2581556Srgrimes (void)snprintf(ttypath = pathbuf, 2591556Srgrimes sizeof(pathbuf), "%s%s", _PATH_TTY, optarg); 2601556Srgrimes else 2611556Srgrimes ttypath = optarg; 2621556Srgrimes if (stat(ttypath, &sb) == -1) 2631556Srgrimes err(1, "%s", ttypath); 2641556Srgrimes if (!S_ISCHR(sb.st_mode)) 2651556Srgrimes errx(1, "%s: not a terminal", ttypath); 2661556Srgrimes ttydev = sb.st_rdev; 2671556Srgrimes break; 2681556Srgrimes } 26913020Speter case 'U': 27066377Sbrian uids = getuids(optarg, &nuids); 27113020Speter xflg++; /* XXX: intuitive? */ 27213020Speter break; 2731556Srgrimes case 'u': 274109502Sjmallett parsefmt(ufmt, 0); 2751556Srgrimes sortby = SORTCPU; 27690143Smarkm _fmt = 1; 2771556Srgrimes ufmt[0] = '\0'; 2781556Srgrimes break; 2791556Srgrimes case 'v': 280109502Sjmallett parsefmt(vfmt, 0); 2811556Srgrimes sortby = SORTMEM; 28290143Smarkm _fmt = 1; 2831556Srgrimes vfmt[0] = '\0'; 2841556Srgrimes break; 2851556Srgrimes case 'w': 2861556Srgrimes if (wflag) 2871556Srgrimes termwidth = UNLIMITED; 2881556Srgrimes else if (termwidth < 131) 2891556Srgrimes termwidth = 131; 2901556Srgrimes wflag++; 2911556Srgrimes break; 2921556Srgrimes case 'x': 2931556Srgrimes xflg = 1; 2941556Srgrimes break; 29586922Sgreen case 'Z': 296109502Sjmallett parsefmt(Zfmt, 0); 29786922Sgreen Zfmt[0] = '\0'; 29886922Sgreen break; 2991556Srgrimes case '?': 3001556Srgrimes default: 3011556Srgrimes usage(); 3021556Srgrimes } 3031556Srgrimes argc -= optind; 3041556Srgrimes argv += optind; 3051556Srgrimes 3061556Srgrimes#define BACKWARD_COMPATIBILITY 3071556Srgrimes#ifdef BACKWARD_COMPATIBILITY 3081556Srgrimes if (*argv) { 3091556Srgrimes nlistf = *argv; 3101556Srgrimes if (*++argv) { 3111556Srgrimes memf = *argv; 3121556Srgrimes } 3131556Srgrimes } 3141556Srgrimes#endif 3151556Srgrimes /* 3161556Srgrimes * Discard setgid privileges if not the running kernel so that bad 3171556Srgrimes * guys can't print interesting stuff from kernel memory. 3181556Srgrimes */ 31937317Sphk if (dropgid) { 3201556Srgrimes setgid(getgid()); 32137317Sphk setuid(getuid()); 32237317Sphk } 3231556Srgrimes 32489909Sru kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf); 3251556Srgrimes if (kd == 0) 3261556Srgrimes errx(1, "%s", errbuf); 3271556Srgrimes 32890143Smarkm if (!_fmt) 329109502Sjmallett parsefmt(dfmt, 0); 3301556Srgrimes 33113020Speter /* XXX - should be cleaner */ 33266377Sbrian if (!all && ttydev == NODEV && pid == -1 && !nuids) { 33366377Sbrian if ((uids = malloc(sizeof (*uids))) == NULL) 33497877Sjmallett errx(1, "malloc failed"); 33566377Sbrian nuids = 1; 33666377Sbrian *uids = getuid(); 33766377Sbrian } 3381556Srgrimes 3391556Srgrimes /* 3401556Srgrimes * scan requested variables, noting what structures are needed, 34153170Skris * and adjusting header widths as appropriate. 3421556Srgrimes */ 3431556Srgrimes scanvars(); 3441556Srgrimes /* 3451556Srgrimes * get proc list 3461556Srgrimes */ 34766377Sbrian if (nuids == 1) { 3481556Srgrimes what = KERN_PROC_UID; 34966377Sbrian flag = *uids; 3501556Srgrimes } else if (ttydev != NODEV) { 3511556Srgrimes what = KERN_PROC_TTY; 3521556Srgrimes flag = ttydev; 3531556Srgrimes } else if (pid != -1) { 3541556Srgrimes what = KERN_PROC_PID; 3551556Srgrimes flag = pid; 3561556Srgrimes } else { 3571556Srgrimes what = KERN_PROC_ALL; 3581556Srgrimes flag = 0; 3591556Srgrimes } 3601556Srgrimes /* 3611556Srgrimes * select procs 3621556Srgrimes */ 36382267Speter if ((kp = kvm_getprocs(kd, what, flag, &nentries)) == 0 || nentries < 0) 3641556Srgrimes errx(1, "%s", kvm_geterr(kd)); 3651556Srgrimes if ((kinfo = malloc(nentries * sizeof(*kinfo))) == NULL) 36697877Sjmallett errx(1, "malloc failed"); 3671556Srgrimes for (i = nentries; --i >= 0; ++kp) { 3681556Srgrimes kinfo[i].ki_p = kp; 3691556Srgrimes if (needuser) 3701556Srgrimes saveuser(&kinfo[i]); 37125271Sjkh dynsizevars(&kinfo[i]); 3721556Srgrimes } 37325271Sjkh 37425271Sjkh sizevars(); 37525271Sjkh 3761556Srgrimes /* 3771556Srgrimes * print header 3781556Srgrimes */ 3791556Srgrimes printheader(); 3801556Srgrimes if (nentries == 0) 38162803Swill exit(1); 3821556Srgrimes /* 3831556Srgrimes * sort proc list 3841556Srgrimes */ 3851556Srgrimes qsort(kinfo, nentries, sizeof(KINFO), pscomp); 3861556Srgrimes /* 3871556Srgrimes * for each proc, call each variable output function. 3881556Srgrimes */ 3891556Srgrimes for (i = lineno = 0; i < nentries; i++) { 39069896Smckusick if (xflg == 0 && ((&kinfo[i])->ki_p->ki_tdev == NODEV || 39169896Smckusick ((&kinfo[i])->ki_p->ki_flag & P_CONTROLT ) == 0)) 3921556Srgrimes continue; 39366377Sbrian if (nuids > 1) { 39466377Sbrian for (uid = 0; uid < nuids; uid++) 39569896Smckusick if ((&kinfo[i])->ki_p->ki_uid == uids[uid]) 39666377Sbrian break; 39766377Sbrian if (uid == nuids) 39866377Sbrian continue; 39966377Sbrian } 4001556Srgrimes for (vent = vhead; vent; vent = vent->next) { 4011556Srgrimes (vent->var->oproc)(&kinfo[i], vent); 4021556Srgrimes if (vent->next != NULL) 4031556Srgrimes (void)putchar(' '); 4041556Srgrimes } 4051556Srgrimes (void)putchar('\n'); 4061556Srgrimes if (prtheader && lineno++ == prtheader - 4) { 4071556Srgrimes (void)putchar('\n'); 4081556Srgrimes printheader(); 4091556Srgrimes lineno = 0; 4101556Srgrimes } 4111556Srgrimes } 41266377Sbrian free(uids); 41366377Sbrian 4141556Srgrimes exit(eval); 4151556Srgrimes} 4161556Srgrimes 41766377Sbrianuid_t * 41866377Sbriangetuids(const char *arg, int *nuids) 41966377Sbrian{ 42099580Srobert char name[MAXLOGNAME]; 42166377Sbrian struct passwd *pwd; 42266377Sbrian uid_t *uids, *moreuids; 42390143Smarkm int alloc; 42490143Smarkm size_t l; 42566377Sbrian 42666377Sbrian 42766377Sbrian alloc = 0; 42866377Sbrian *nuids = 0; 42966377Sbrian uids = NULL; 43066377Sbrian for (; (l = strcspn(arg, SEP)) > 0; arg += l + strspn(arg + l, SEP)) { 43166377Sbrian if (l >= sizeof name) { 43290143Smarkm warnx("%.*s: name too long", (int)l, arg); 43366377Sbrian continue; 43466377Sbrian } 43566377Sbrian strncpy(name, arg, l); 43666377Sbrian name[l] = '\0'; 43766377Sbrian if ((pwd = getpwnam(name)) == NULL) { 43866377Sbrian warnx("%s: no such user", name); 43966377Sbrian continue; 44066377Sbrian } 44166377Sbrian if (*nuids >= alloc) { 44266377Sbrian alloc = (alloc + 1) << 1; 44366377Sbrian moreuids = realloc(uids, alloc * sizeof (*uids)); 44466377Sbrian if (moreuids == NULL) { 44566377Sbrian free(uids); 44697877Sjmallett errx(1, "realloc failed"); 44766377Sbrian } 44866377Sbrian uids = moreuids; 44966377Sbrian } 45066377Sbrian uids[(*nuids)++] = pwd->pw_uid; 45166377Sbrian } 45266377Sbrian endpwent(); 45366377Sbrian 45466377Sbrian if (!*nuids) 45566377Sbrian errx(1, "No users specified"); 45666377Sbrian 45766377Sbrian return uids; 45866377Sbrian} 45966377Sbrian 460109502SjmallettVARENT * 461109502Sjmallettfind_varentry(VAR *v) 462109502Sjmallett{ 463109502Sjmallett struct varent *vent; 464109502Sjmallett 465109502Sjmallett for (vent = vhead; vent; vent = vent->next) { 466109502Sjmallett if (strcmp(vent->var->name, v->name) == 0) 467109502Sjmallett return vent; 468109502Sjmallett } 469109502Sjmallett return NULL; 470109502Sjmallett} 471109502Sjmallett 4721556Srgrimesstatic void 47390110Simpscanvars(void) 4741556Srgrimes{ 4751556Srgrimes struct varent *vent; 4761556Srgrimes VAR *v; 47725271Sjkh 47825271Sjkh for (vent = vhead; vent; vent = vent->next) { 47925271Sjkh v = vent->var; 48025271Sjkh if (v->flag & DSIZ) { 48125271Sjkh v->dwidth = v->width; 48225271Sjkh v->width = 0; 48325271Sjkh } 48425271Sjkh if (v->flag & USER) 48525271Sjkh needuser = 1; 48625271Sjkh if (v->flag & COMM) 48725271Sjkh needcomm = 1; 48825271Sjkh } 48925271Sjkh} 49025271Sjkh 49125271Sjkhstatic void 49290110Simpdynsizevars(KINFO *ki) 49325271Sjkh{ 49425271Sjkh struct varent *vent; 49525271Sjkh VAR *v; 4961556Srgrimes int i; 4971556Srgrimes 4981556Srgrimes for (vent = vhead; vent; vent = vent->next) { 4991556Srgrimes v = vent->var; 50025271Sjkh if (!(v->flag & DSIZ)) 50125271Sjkh continue; 50225271Sjkh i = (v->sproc)( ki); 50325271Sjkh if (v->width < i) 50425271Sjkh v->width = i; 50525271Sjkh if (v->width > v->dwidth) 50625271Sjkh v->width = v->dwidth; 50725271Sjkh } 50825271Sjkh} 50925271Sjkh 51025271Sjkhstatic void 51190110Simpsizevars(void) 51225271Sjkh{ 51325271Sjkh struct varent *vent; 51425271Sjkh VAR *v; 51525271Sjkh int i; 51625271Sjkh 51725271Sjkh for (vent = vhead; vent; vent = vent->next) { 51825271Sjkh v = vent->var; 519109504Sjmallett i = strlen(vent->header); 5201556Srgrimes if (v->width < i) 5211556Srgrimes v->width = i; 5221556Srgrimes totwidth += v->width + 1; /* +1 for space */ 5231556Srgrimes } 5241556Srgrimes totwidth--; 5251556Srgrimes} 5261556Srgrimes 52790143Smarkmstatic const char * 52890110Simpfmt(char **(*fn)(kvm_t *, const struct kinfo_proc *, int), KINFO *ki, 52990110Simp char *comm, int maxlen) 5301556Srgrimes{ 53190143Smarkm const char *s; 5321556Srgrimes 53390143Smarkm s = fmt_argv((*fn)(kd, ki->ki_p, termwidth), comm, maxlen); 5341556Srgrimes return (s); 5351556Srgrimes} 5361556Srgrimes 53771578Sjhb#define UREADOK(ki) (forceuread || (ki->ki_p->ki_sflag & PS_INMEM)) 53831552Sdyson 5391556Srgrimesstatic void 54090110Simpsaveuser(KINFO *ki) 5411556Srgrimes{ 5421556Srgrimes 54371578Sjhb if (ki->ki_p->ki_sflag & PS_INMEM) { 5441556Srgrimes /* 5451556Srgrimes * The u-area might be swapped out, and we can't get 5461556Srgrimes * at it because we have a crashdump and no swap. 5471556Srgrimes * If it's here fill in these fields, otherwise, just 5481556Srgrimes * leave them 0. 5491556Srgrimes */ 55069896Smckusick ki->ki_valid = 1; 5511556Srgrimes } else 55269896Smckusick ki->ki_valid = 0; 5531556Srgrimes /* 5541556Srgrimes * save arguments if needed 5551556Srgrimes */ 55669896Smckusick if (needcomm && (UREADOK(ki) || (ki->ki_p->ki_args != NULL))) { 55790143Smarkm ki->ki_args = strdup(fmt(kvm_getargv, ki, ki->ki_p->ki_comm, 55890143Smarkm MAXCOMLEN)); 55931552Sdyson } else if (needcomm) { 56090143Smarkm asprintf(&ki->ki_args, "(%s)", ki->ki_p->ki_comm); 56153276Speter } else { 56253276Speter ki->ki_args = NULL; 56353276Speter } 56453276Speter if (needenv && UREADOK(ki)) { 56590143Smarkm ki->ki_env = strdup(fmt(kvm_getenvv, ki, (char *)NULL, 0)); 56653276Speter } else if (needenv) { 56753276Speter ki->ki_env = malloc(3); 56853276Speter strcpy(ki->ki_env, "()"); 56953276Speter } else { 57053276Speter ki->ki_env = NULL; 57153276Speter } 5721556Srgrimes} 5731556Srgrimes 5741556Srgrimesstatic int 57590110Simppscomp(const void *a, const void *b) 5761556Srgrimes{ 5771556Srgrimes int i; 57869896Smckusick#define VSIZE(k) ((k)->ki_p->ki_dsize + (k)->ki_p->ki_ssize + \ 57969896Smckusick (k)->ki_p->ki_tsize) 5801556Srgrimes 5811556Srgrimes if (sortby == SORTCPU) 58290143Smarkm return (getpcpu((const KINFO *)b) - getpcpu((const KINFO *)a)); 5831556Srgrimes if (sortby == SORTMEM) 58490143Smarkm return (VSIZE((const KINFO *)b) - VSIZE((const KINFO *)a)); 58590143Smarkm i = (int)((const KINFO *)a)->ki_p->ki_tdev - (int)((const KINFO *)b)->ki_p->ki_tdev; 5861556Srgrimes if (i == 0) 58790143Smarkm i = ((const KINFO *)a)->ki_p->ki_pid - ((const KINFO *)b)->ki_p->ki_pid; 5881556Srgrimes return (i); 5891556Srgrimes} 5901556Srgrimes 5911556Srgrimes/* 5921556Srgrimes * ICK (all for getopt), would rather hide the ugliness 5931556Srgrimes * here than taint the main code. 5941556Srgrimes * 5951556Srgrimes * ps foo -> ps -foo 5961556Srgrimes * ps 34 -> ps -p34 5971556Srgrimes * 5981556Srgrimes * The old convention that 't' with no trailing tty arg means the users 5991556Srgrimes * tty, is only supported if argv[1] doesn't begin with a '-'. This same 6001556Srgrimes * feature is available with the option 'T', which takes no argument. 6011556Srgrimes */ 6021556Srgrimesstatic char * 60390110Simpkludge_oldps_options(char *s) 6041556Srgrimes{ 605102886Sjmallett int have_fmt; 6061556Srgrimes size_t len; 6071556Srgrimes char *newopts, *ns, *cp; 6081556Srgrimes 609102886Sjmallett /* 610102886Sjmallett * If we have an 'o' option, then note it, since we don't want to do 611102886Sjmallett * some types of munging. 612102886Sjmallett */ 613102886Sjmallett have_fmt = index(s, 'o') != NULL; 614102886Sjmallett 6151556Srgrimes len = strlen(s); 6161556Srgrimes if ((newopts = ns = malloc(len + 2)) == NULL) 61797877Sjmallett errx(1, "malloc failed"); 6181556Srgrimes /* 6191556Srgrimes * options begin with '-' 6201556Srgrimes */ 6211556Srgrimes if (*s != '-') 6221556Srgrimes *ns++ = '-'; /* add option flag */ 6231556Srgrimes /* 6241556Srgrimes * gaze to end of argv[1] 6251556Srgrimes */ 6261556Srgrimes cp = s + len - 1; 6271556Srgrimes /* 6281556Srgrimes * if last letter is a 't' flag with no argument (in the context 6291556Srgrimes * of the oldps options -- option string NOT starting with a '-' -- 6301556Srgrimes * then convert to 'T' (meaning *this* terminal, i.e. ttyname(0)). 63181743Sbrian * 63281743Sbrian * However, if a flag accepting a string argument is found in the 63381743Sbrian * option string, the remainder of the string is the argument to 63481743Sbrian * that flag; do not modify that argument. 6351556Srgrimes */ 63689909Sru if (strcspn(s, "MNOoU") == len && *cp == 't' && *s != '-') 6371556Srgrimes *cp = 'T'; 6381556Srgrimes else { 6391556Srgrimes /* 6401556Srgrimes * otherwise check for trailing number, which *may* be a 6411556Srgrimes * pid. 6421556Srgrimes */ 6431556Srgrimes while (cp >= s && isdigit(*cp)) 6441556Srgrimes --cp; 6451556Srgrimes } 6461556Srgrimes cp++; 6471556Srgrimes memmove(ns, s, (size_t)(cp - s)); /* copy up to trailing number */ 6481556Srgrimes ns += cp - s; 6491556Srgrimes /* 6501556Srgrimes * if there's a trailing number, and not a preceding 'p' (pid) or 6511556Srgrimes * 't' (tty) flag, then assume it's a pid and insert a 'p' flag. 6521556Srgrimes */ 6538855Srgrimes if (isdigit(*cp) && 6547165Sjoerg (cp == s || (cp[-1] != 't' && cp[-1] != 'p')) && 655102886Sjmallett (cp - 1 == s || cp[-2] != 't') && !have_fmt) 6561556Srgrimes *ns++ = 'p'; 6571556Srgrimes (void)strcpy(ns, cp); /* and append the number */ 6581556Srgrimes 6591556Srgrimes return (newopts); 6601556Srgrimes} 6611556Srgrimes 6621556Srgrimesstatic void 66390110Simpusage(void) 6641556Srgrimes{ 6651556Srgrimes 66626465Scharnier (void)fprintf(stderr, "%s\n%s\n%s\n", 667105831Srwatson "usage: ps [-aChjlmrSTuvwxZ] [-O|o fmt] [-p pid] [-t tty] [-U user]", 66889909Sru " [-M core] [-N system]", 66926465Scharnier " ps [-L]"); 6701556Srgrimes exit(1); 6711556Srgrimes} 672