ps.c revision 98494
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 3490143Smarkm#include <sys/cdefs.h> 3590143Smarkm__FBSDID("$FreeBSD: head/bin/ps/ps.c 98494 2002-06-20 14:55:53Z sobomax $"); 3690143Smarkm 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 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> 6766377Sbrian#include <utmp.h> 681556Srgrimes 6989389Ssobomax#include "lomac.h" 701556Srgrimes#include "ps.h" 711556Srgrimes 7266377Sbrian#define SEP ", \t" /* username separators */ 7366377Sbrian 7490143Smarkmstatic KINFO *kinfo; 7590143Smarkmstruct varent *vhead; 761556Srgrimes 771556Srgrimesint eval; /* exit value */ 7819068Speterint cflag; /* -c */ 791556Srgrimesint rawcpu; /* -C */ 801556Srgrimesint sumrusage; /* -S */ 811556Srgrimesint termwidth; /* width of screen (0 == infinity) */ 821556Srgrimesint totwidth; /* calculated width of requested variables */ 831556Srgrimes 8497966Sjmalletttime_t now; /* current time(3) value */ 8597966Sjmallett 861556Srgrimesstatic int needuser, needcomm, needenv; 8731552Sdyson#if defined(LAZY_PS) 8831552Sdysonstatic int forceuread=0; 8931552Sdyson#else 9031552Sdysonstatic int forceuread=1; 9131552Sdyson#endif 921556Srgrimes 9390143Smarkmstatic enum sort { DEFAULT, SORTMEM, SORTCPU } sortby = DEFAULT; 941556Srgrimes 9590143Smarkmstatic const char *fmt(char **(*)(kvm_t *, const struct kinfo_proc *, int), 9690110Simp KINFO *, char *, int); 9790110Simpstatic char *kludge_oldps_options(char *); 9890110Simpstatic int pscomp(const void *, const void *); 9990110Simpstatic void saveuser(KINFO *); 10090110Simpstatic void scanvars(void); 10190110Simpstatic void dynsizevars(KINFO *); 10290110Simpstatic void sizevars(void); 10390110Simpstatic void usage(void); 10466377Sbrianstatic uid_t *getuids(const char *, int *); 1051556Srgrimes 10697875Sjmallettstatic char dfmt[] = "pid,tt,state,time,command"; 10797875Sjmallettstatic char jfmt[] = "user,pid,ppid,pgid,jobc,state,tt,time,command"; 10897875Sjmallettstatic char lfmt[] = "uid,pid,ppid,cpu,pri,nice,vsz,rss,mwchan,state,tt,time,command"; 10990143Smarkmstatic char o1[] = "pid"; 11097875Sjmallettstatic char o2[] = "tt,state,time,command"; 11197875Sjmallettstatic char ufmt[] = "user,pid,%cpu,%mem,vsz,rss,tt,state,start,time,command"; 11297875Sjmallettstatic char vfmt[] = "pid,state,time,sl,re,pagein,vsz,rss,lim,tsiz,%cpu,%mem,command"; 11390143Smarkmstatic char Zfmt[] = "lvl"; 1141556Srgrimes 11590143Smarkmstatic kvm_t *kd; 1161556Srgrimes 11798494Ssobomax#if defined(LAZY_PS) 11898494Ssobomax#define PS_ARGS "aCcefghjLlM:mN:O:o:p:rSTt:U:uvwxZ" 11998494Ssobomax#else 12098494Ssobomax#define PS_ARGS "aCceghjLlM:mN:O:o:p:rSTt:U:uvwxZ" 12198494Ssobomax#endif 12298494Ssobomax 1231556Srgrimesint 12490110Simpmain(int argc, char *argv[]) 1251556Srgrimes{ 1261556Srgrimes struct kinfo_proc *kp; 1271556Srgrimes struct varent *vent; 1281556Srgrimes struct winsize ws; 1291556Srgrimes dev_t ttydev; 1301556Srgrimes pid_t pid; 13166377Sbrian uid_t *uids; 13298494Ssobomax int all, ch, flag, i, _fmt, lineno, nentries, nocludge, dropgid; 13366377Sbrian int prtheader, wflag, what, xflg, uid, nuids; 13497804Stjr char *cols; 13590143Smarkm char errbuf[_POSIX2_LINE_MAX]; 13698494Ssobomax const char *cp, *nlistf, *memf; 1371556Srgrimes 13811809Sache (void) setlocale(LC_ALL, ""); 13997966Sjmallett /* Set the time to what it is right now. */ 14097966Sjmallett time(&now); 14111809Sache 14297804Stjr if ((cols = getenv("COLUMNS")) != NULL && *cols != '\0') 14397804Stjr termwidth = atoi(cols); 14497804Stjr else if ((ioctl(STDOUT_FILENO, TIOCGWINSZ, (char *)&ws) == -1 && 1451556Srgrimes ioctl(STDERR_FILENO, TIOCGWINSZ, (char *)&ws) == -1 && 1461556Srgrimes ioctl(STDIN_FILENO, TIOCGWINSZ, (char *)&ws) == -1) || 1471556Srgrimes ws.ws_col == 0) 1481556Srgrimes termwidth = 79; 1491556Srgrimes else 1501556Srgrimes termwidth = ws.ws_col - 1; 1511556Srgrimes 15298494Ssobomax /* 15398494Ssobomax * Don't apply a kludge if the first argument is an option taking an 15498494Ssobomax * argument 15598494Ssobomax */ 15698494Ssobomax if (argc > 1) { 15798494Ssobomax nocludge = 0; 15898494Ssobomax if (argv[1][0] == '-') { 15998494Ssobomax for (cp = PS_ARGS; *cp != '\0'; cp++) { 16098494Ssobomax if (*cp != ':') 16198494Ssobomax continue; 16298494Ssobomax if (*(cp - 1) == argv[1][1]) { 16398494Ssobomax nocludge = 1; 16498494Ssobomax break; 16598494Ssobomax } 16698494Ssobomax } 16798494Ssobomax } 16898494Ssobomax if (nocludge == 0) 16998494Ssobomax argv[1] = kludge_oldps_options(argv[1]); 17098494Ssobomax } 1711556Srgrimes 17290143Smarkm all = _fmt = prtheader = wflag = xflg = 0; 1731556Srgrimes pid = -1; 17466377Sbrian nuids = 0; 17566377Sbrian uids = NULL; 1761556Srgrimes ttydev = NODEV; 17737317Sphk dropgid = 0; 17889909Sru memf = nlistf = _PATH_DEVNULL; 17998494Ssobomax while ((ch = getopt(argc, argv, PS_ARGS)) != -1) 1801556Srgrimes switch((char)ch) { 1811556Srgrimes case 'a': 1821556Srgrimes all = 1; 1831556Srgrimes break; 18419068Speter case 'C': 18519068Speter rawcpu = 1; 18619068Speter break; 18719068Speter case 'c': 18819068Speter cflag = 1; 18919068Speter break; 1901556Srgrimes case 'e': /* XXX set ufmt */ 1911556Srgrimes needenv = 1; 1921556Srgrimes break; 1931556Srgrimes case 'g': 1941556Srgrimes break; /* no-op */ 1951556Srgrimes case 'h': 1961556Srgrimes prtheader = ws.ws_row > 5 ? ws.ws_row : 22; 1971556Srgrimes break; 1981556Srgrimes case 'j': 1991556Srgrimes parsefmt(jfmt); 20090143Smarkm _fmt = 1; 2011556Srgrimes jfmt[0] = '\0'; 2021556Srgrimes break; 2031556Srgrimes case 'L': 2041556Srgrimes showkey(); 2051556Srgrimes exit(0); 2061556Srgrimes case 'l': 2071556Srgrimes parsefmt(lfmt); 20890143Smarkm _fmt = 1; 2091556Srgrimes lfmt[0] = '\0'; 2101556Srgrimes break; 2111556Srgrimes case 'M': 2121556Srgrimes memf = optarg; 21337317Sphk dropgid = 1; 2141556Srgrimes break; 2151556Srgrimes case 'm': 2161556Srgrimes sortby = SORTMEM; 2171556Srgrimes break; 2181556Srgrimes case 'N': 2191556Srgrimes nlistf = optarg; 22037317Sphk dropgid = 1; 2211556Srgrimes break; 2221556Srgrimes case 'O': 2231556Srgrimes parsefmt(o1); 2241556Srgrimes parsefmt(optarg); 2251556Srgrimes parsefmt(o2); 2261556Srgrimes o1[0] = o2[0] = '\0'; 22790143Smarkm _fmt = 1; 2281556Srgrimes break; 2291556Srgrimes case 'o': 2301556Srgrimes parsefmt(optarg); 23190143Smarkm _fmt = 1; 2321556Srgrimes break; 23331552Sdyson#if defined(LAZY_PS) 23431552Sdyson case 'f': 23531552Sdyson if (getuid() == 0 || getgid() == 0) 23631552Sdyson forceuread = 1; 23731552Sdyson break; 23831552Sdyson#endif 2391556Srgrimes case 'p': 2401556Srgrimes pid = atol(optarg); 2411556Srgrimes xflg = 1; 2421556Srgrimes break; 2431556Srgrimes case 'r': 2441556Srgrimes sortby = SORTCPU; 2451556Srgrimes break; 2461556Srgrimes case 'S': 2471556Srgrimes sumrusage = 1; 2481556Srgrimes break; 2491556Srgrimes case 'T': 2501556Srgrimes if ((optarg = ttyname(STDIN_FILENO)) == NULL) 2511556Srgrimes errx(1, "stdin: not a terminal"); 2521556Srgrimes /* FALLTHROUGH */ 2531556Srgrimes case 't': { 2541556Srgrimes struct stat sb; 25577459Simp char *ttypath, pathbuf[PATH_MAX]; 2561556Srgrimes 2571556Srgrimes if (strcmp(optarg, "co") == 0) 25890143Smarkm ttypath = strdup(_PATH_CONSOLE); 2591556Srgrimes else if (*optarg != '/') 2601556Srgrimes (void)snprintf(ttypath = pathbuf, 2611556Srgrimes sizeof(pathbuf), "%s%s", _PATH_TTY, optarg); 2621556Srgrimes else 2631556Srgrimes ttypath = optarg; 2641556Srgrimes if (stat(ttypath, &sb) == -1) 2651556Srgrimes err(1, "%s", ttypath); 2661556Srgrimes if (!S_ISCHR(sb.st_mode)) 2671556Srgrimes errx(1, "%s: not a terminal", ttypath); 2681556Srgrimes ttydev = sb.st_rdev; 2691556Srgrimes break; 2701556Srgrimes } 27113020Speter case 'U': 27266377Sbrian uids = getuids(optarg, &nuids); 27313020Speter xflg++; /* XXX: intuitive? */ 27413020Speter break; 2751556Srgrimes case 'u': 2761556Srgrimes parsefmt(ufmt); 2771556Srgrimes sortby = SORTCPU; 27890143Smarkm _fmt = 1; 2791556Srgrimes ufmt[0] = '\0'; 2801556Srgrimes break; 2811556Srgrimes case 'v': 2821556Srgrimes parsefmt(vfmt); 2831556Srgrimes sortby = SORTMEM; 28490143Smarkm _fmt = 1; 2851556Srgrimes vfmt[0] = '\0'; 2861556Srgrimes break; 2871556Srgrimes case 'w': 2881556Srgrimes if (wflag) 2891556Srgrimes termwidth = UNLIMITED; 2901556Srgrimes else if (termwidth < 131) 2911556Srgrimes termwidth = 131; 2921556Srgrimes wflag++; 2931556Srgrimes break; 2941556Srgrimes case 'x': 2951556Srgrimes xflg = 1; 2961556Srgrimes break; 29786922Sgreen case 'Z': 29886922Sgreen parsefmt(Zfmt); 29986922Sgreen Zfmt[0] = '\0'; 30086922Sgreen break; 3011556Srgrimes case '?': 3021556Srgrimes default: 3031556Srgrimes usage(); 3041556Srgrimes } 3051556Srgrimes argc -= optind; 3061556Srgrimes argv += optind; 3071556Srgrimes 3081556Srgrimes#define BACKWARD_COMPATIBILITY 3091556Srgrimes#ifdef BACKWARD_COMPATIBILITY 3101556Srgrimes if (*argv) { 3111556Srgrimes nlistf = *argv; 3121556Srgrimes if (*++argv) { 3131556Srgrimes memf = *argv; 3141556Srgrimes } 3151556Srgrimes } 3161556Srgrimes#endif 3171556Srgrimes /* 3181556Srgrimes * Discard setgid privileges if not the running kernel so that bad 3191556Srgrimes * guys can't print interesting stuff from kernel memory. 3201556Srgrimes */ 32137317Sphk if (dropgid) { 3221556Srgrimes setgid(getgid()); 32337317Sphk setuid(getuid()); 32437317Sphk } 3251556Srgrimes 32689909Sru kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf); 3271556Srgrimes if (kd == 0) 3281556Srgrimes errx(1, "%s", errbuf); 3291556Srgrimes 33090143Smarkm if (!_fmt) 3311556Srgrimes parsefmt(dfmt); 3321556Srgrimes 33313020Speter /* XXX - should be cleaner */ 33466377Sbrian if (!all && ttydev == NODEV && pid == -1 && !nuids) { 33566377Sbrian if ((uids = malloc(sizeof (*uids))) == NULL) 33697877Sjmallett errx(1, "malloc failed"); 33766377Sbrian nuids = 1; 33866377Sbrian *uids = getuid(); 33966377Sbrian } 3401556Srgrimes 3411556Srgrimes /* 3421556Srgrimes * scan requested variables, noting what structures are needed, 34353170Skris * and adjusting header widths as appropriate. 3441556Srgrimes */ 3451556Srgrimes scanvars(); 3461556Srgrimes /* 3471556Srgrimes * get proc list 3481556Srgrimes */ 34966377Sbrian if (nuids == 1) { 3501556Srgrimes what = KERN_PROC_UID; 35166377Sbrian flag = *uids; 3521556Srgrimes } else if (ttydev != NODEV) { 3531556Srgrimes what = KERN_PROC_TTY; 3541556Srgrimes flag = ttydev; 3551556Srgrimes } else if (pid != -1) { 3561556Srgrimes what = KERN_PROC_PID; 3571556Srgrimes flag = pid; 3581556Srgrimes } else { 3591556Srgrimes what = KERN_PROC_ALL; 3601556Srgrimes flag = 0; 3611556Srgrimes } 3621556Srgrimes /* 3631556Srgrimes * select procs 3641556Srgrimes */ 36582267Speter if ((kp = kvm_getprocs(kd, what, flag, &nentries)) == 0 || nentries < 0) 3661556Srgrimes errx(1, "%s", kvm_geterr(kd)); 3671556Srgrimes if ((kinfo = malloc(nentries * sizeof(*kinfo))) == NULL) 36897877Sjmallett errx(1, "malloc failed"); 3691556Srgrimes for (i = nentries; --i >= 0; ++kp) { 3701556Srgrimes kinfo[i].ki_p = kp; 3711556Srgrimes if (needuser) 3721556Srgrimes saveuser(&kinfo[i]); 37325271Sjkh dynsizevars(&kinfo[i]); 3741556Srgrimes } 37525271Sjkh 37625271Sjkh sizevars(); 37725271Sjkh 3781556Srgrimes /* 3791556Srgrimes * print header 3801556Srgrimes */ 3811556Srgrimes printheader(); 3821556Srgrimes if (nentries == 0) 38362803Swill exit(1); 3841556Srgrimes /* 3851556Srgrimes * sort proc list 3861556Srgrimes */ 3871556Srgrimes qsort(kinfo, nentries, sizeof(KINFO), pscomp); 3881556Srgrimes /* 3891556Srgrimes * for each proc, call each variable output function. 3901556Srgrimes */ 3911556Srgrimes for (i = lineno = 0; i < nentries; i++) { 39269896Smckusick if (xflg == 0 && ((&kinfo[i])->ki_p->ki_tdev == NODEV || 39369896Smckusick ((&kinfo[i])->ki_p->ki_flag & P_CONTROLT ) == 0)) 3941556Srgrimes continue; 39566377Sbrian if (nuids > 1) { 39666377Sbrian for (uid = 0; uid < nuids; uid++) 39769896Smckusick if ((&kinfo[i])->ki_p->ki_uid == uids[uid]) 39866377Sbrian break; 39966377Sbrian if (uid == nuids) 40066377Sbrian continue; 40166377Sbrian } 4021556Srgrimes for (vent = vhead; vent; vent = vent->next) { 4031556Srgrimes (vent->var->oproc)(&kinfo[i], vent); 4041556Srgrimes if (vent->next != NULL) 4051556Srgrimes (void)putchar(' '); 4061556Srgrimes } 4071556Srgrimes (void)putchar('\n'); 4081556Srgrimes if (prtheader && lineno++ == prtheader - 4) { 4091556Srgrimes (void)putchar('\n'); 4101556Srgrimes printheader(); 4111556Srgrimes lineno = 0; 4121556Srgrimes } 4131556Srgrimes } 41466377Sbrian free(uids); 41586922Sgreen lomac_stop(); 41666377Sbrian 4171556Srgrimes exit(eval); 4181556Srgrimes} 4191556Srgrimes 42066377Sbrianuid_t * 42166377Sbriangetuids(const char *arg, int *nuids) 42266377Sbrian{ 42366377Sbrian char name[UT_NAMESIZE + 1]; 42466377Sbrian struct passwd *pwd; 42566377Sbrian uid_t *uids, *moreuids; 42690143Smarkm int alloc; 42790143Smarkm size_t l; 42866377Sbrian 42966377Sbrian 43066377Sbrian alloc = 0; 43166377Sbrian *nuids = 0; 43266377Sbrian uids = NULL; 43366377Sbrian for (; (l = strcspn(arg, SEP)) > 0; arg += l + strspn(arg + l, SEP)) { 43466377Sbrian if (l >= sizeof name) { 43590143Smarkm warnx("%.*s: name too long", (int)l, arg); 43666377Sbrian continue; 43766377Sbrian } 43866377Sbrian strncpy(name, arg, l); 43966377Sbrian name[l] = '\0'; 44066377Sbrian if ((pwd = getpwnam(name)) == NULL) { 44166377Sbrian warnx("%s: no such user", name); 44266377Sbrian continue; 44366377Sbrian } 44466377Sbrian if (*nuids >= alloc) { 44566377Sbrian alloc = (alloc + 1) << 1; 44666377Sbrian moreuids = realloc(uids, alloc * sizeof (*uids)); 44766377Sbrian if (moreuids == NULL) { 44866377Sbrian free(uids); 44997877Sjmallett errx(1, "realloc failed"); 45066377Sbrian } 45166377Sbrian uids = moreuids; 45266377Sbrian } 45366377Sbrian uids[(*nuids)++] = pwd->pw_uid; 45466377Sbrian } 45566377Sbrian endpwent(); 45666377Sbrian 45766377Sbrian if (!*nuids) 45866377Sbrian errx(1, "No users specified"); 45966377Sbrian 46066377Sbrian return uids; 46166377Sbrian} 46266377Sbrian 4631556Srgrimesstatic void 46490110Simpscanvars(void) 4651556Srgrimes{ 4661556Srgrimes struct varent *vent; 4671556Srgrimes VAR *v; 46825271Sjkh 46925271Sjkh for (vent = vhead; vent; vent = vent->next) { 47025271Sjkh v = vent->var; 47125271Sjkh if (v->flag & DSIZ) { 47225271Sjkh v->dwidth = v->width; 47325271Sjkh v->width = 0; 47425271Sjkh } 47525271Sjkh if (v->flag & USER) 47625271Sjkh needuser = 1; 47725271Sjkh if (v->flag & COMM) 47825271Sjkh needcomm = 1; 47925271Sjkh } 48025271Sjkh} 48125271Sjkh 48225271Sjkhstatic void 48390110Simpdynsizevars(KINFO *ki) 48425271Sjkh{ 48525271Sjkh struct varent *vent; 48625271Sjkh VAR *v; 4871556Srgrimes int i; 4881556Srgrimes 4891556Srgrimes for (vent = vhead; vent; vent = vent->next) { 4901556Srgrimes v = vent->var; 49125271Sjkh if (!(v->flag & DSIZ)) 49225271Sjkh continue; 49325271Sjkh i = (v->sproc)( ki); 49425271Sjkh if (v->width < i) 49525271Sjkh v->width = i; 49625271Sjkh if (v->width > v->dwidth) 49725271Sjkh v->width = v->dwidth; 49825271Sjkh } 49925271Sjkh} 50025271Sjkh 50125271Sjkhstatic void 50290110Simpsizevars(void) 50325271Sjkh{ 50425271Sjkh struct varent *vent; 50525271Sjkh VAR *v; 50625271Sjkh int i; 50725271Sjkh 50825271Sjkh for (vent = vhead; vent; vent = vent->next) { 50925271Sjkh v = vent->var; 5101556Srgrimes i = strlen(v->header); 5111556Srgrimes if (v->width < i) 5121556Srgrimes v->width = i; 5131556Srgrimes totwidth += v->width + 1; /* +1 for space */ 5141556Srgrimes } 5151556Srgrimes totwidth--; 5161556Srgrimes} 5171556Srgrimes 51890143Smarkmstatic const char * 51990110Simpfmt(char **(*fn)(kvm_t *, const struct kinfo_proc *, int), KINFO *ki, 52090110Simp char *comm, int maxlen) 5211556Srgrimes{ 52290143Smarkm const char *s; 5231556Srgrimes 52490143Smarkm s = fmt_argv((*fn)(kd, ki->ki_p, termwidth), comm, maxlen); 5251556Srgrimes return (s); 5261556Srgrimes} 5271556Srgrimes 52871578Sjhb#define UREADOK(ki) (forceuread || (ki->ki_p->ki_sflag & PS_INMEM)) 52931552Sdyson 5301556Srgrimesstatic void 53190110Simpsaveuser(KINFO *ki) 5321556Srgrimes{ 5331556Srgrimes 53471578Sjhb if (ki->ki_p->ki_sflag & PS_INMEM) { 5351556Srgrimes /* 5361556Srgrimes * The u-area might be swapped out, and we can't get 5371556Srgrimes * at it because we have a crashdump and no swap. 5381556Srgrimes * If it's here fill in these fields, otherwise, just 5391556Srgrimes * leave them 0. 5401556Srgrimes */ 54169896Smckusick ki->ki_valid = 1; 5421556Srgrimes } else 54369896Smckusick ki->ki_valid = 0; 5441556Srgrimes /* 5451556Srgrimes * save arguments if needed 5461556Srgrimes */ 54769896Smckusick if (needcomm && (UREADOK(ki) || (ki->ki_p->ki_args != NULL))) { 54890143Smarkm ki->ki_args = strdup(fmt(kvm_getargv, ki, ki->ki_p->ki_comm, 54990143Smarkm MAXCOMLEN)); 55031552Sdyson } else if (needcomm) { 55190143Smarkm asprintf(&ki->ki_args, "(%s)", ki->ki_p->ki_comm); 55253276Speter } else { 55353276Speter ki->ki_args = NULL; 55453276Speter } 55553276Speter if (needenv && UREADOK(ki)) { 55690143Smarkm ki->ki_env = strdup(fmt(kvm_getenvv, ki, (char *)NULL, 0)); 55753276Speter } else if (needenv) { 55853276Speter ki->ki_env = malloc(3); 55953276Speter strcpy(ki->ki_env, "()"); 56053276Speter } else { 56153276Speter ki->ki_env = NULL; 56253276Speter } 5631556Srgrimes} 5641556Srgrimes 5651556Srgrimesstatic int 56690110Simppscomp(const void *a, const void *b) 5671556Srgrimes{ 5681556Srgrimes int i; 56969896Smckusick#define VSIZE(k) ((k)->ki_p->ki_dsize + (k)->ki_p->ki_ssize + \ 57069896Smckusick (k)->ki_p->ki_tsize) 5711556Srgrimes 5721556Srgrimes if (sortby == SORTCPU) 57390143Smarkm return (getpcpu((const KINFO *)b) - getpcpu((const KINFO *)a)); 5741556Srgrimes if (sortby == SORTMEM) 57590143Smarkm return (VSIZE((const KINFO *)b) - VSIZE((const KINFO *)a)); 57690143Smarkm i = (int)((const KINFO *)a)->ki_p->ki_tdev - (int)((const KINFO *)b)->ki_p->ki_tdev; 5771556Srgrimes if (i == 0) 57890143Smarkm i = ((const KINFO *)a)->ki_p->ki_pid - ((const KINFO *)b)->ki_p->ki_pid; 5791556Srgrimes return (i); 5801556Srgrimes} 5811556Srgrimes 5821556Srgrimes/* 5831556Srgrimes * ICK (all for getopt), would rather hide the ugliness 5841556Srgrimes * here than taint the main code. 5851556Srgrimes * 5861556Srgrimes * ps foo -> ps -foo 5871556Srgrimes * ps 34 -> ps -p34 5881556Srgrimes * 5891556Srgrimes * The old convention that 't' with no trailing tty arg means the users 5901556Srgrimes * tty, is only supported if argv[1] doesn't begin with a '-'. This same 5911556Srgrimes * feature is available with the option 'T', which takes no argument. 5921556Srgrimes */ 5931556Srgrimesstatic char * 59490110Simpkludge_oldps_options(char *s) 5951556Srgrimes{ 5961556Srgrimes size_t len; 5971556Srgrimes char *newopts, *ns, *cp; 5981556Srgrimes 5991556Srgrimes len = strlen(s); 6001556Srgrimes if ((newopts = ns = malloc(len + 2)) == NULL) 60197877Sjmallett errx(1, "malloc failed"); 6021556Srgrimes /* 6031556Srgrimes * options begin with '-' 6041556Srgrimes */ 6051556Srgrimes if (*s != '-') 6061556Srgrimes *ns++ = '-'; /* add option flag */ 6071556Srgrimes /* 6081556Srgrimes * gaze to end of argv[1] 6091556Srgrimes */ 6101556Srgrimes cp = s + len - 1; 6111556Srgrimes /* 6121556Srgrimes * if last letter is a 't' flag with no argument (in the context 6131556Srgrimes * of the oldps options -- option string NOT starting with a '-' -- 6141556Srgrimes * then convert to 'T' (meaning *this* terminal, i.e. ttyname(0)). 61581743Sbrian * 61681743Sbrian * However, if a flag accepting a string argument is found in the 61781743Sbrian * option string, the remainder of the string is the argument to 61881743Sbrian * that flag; do not modify that argument. 6191556Srgrimes */ 62089909Sru if (strcspn(s, "MNOoU") == len && *cp == 't' && *s != '-') 6211556Srgrimes *cp = 'T'; 6221556Srgrimes else { 6231556Srgrimes /* 6241556Srgrimes * otherwise check for trailing number, which *may* be a 6251556Srgrimes * pid. 6261556Srgrimes */ 6271556Srgrimes while (cp >= s && isdigit(*cp)) 6281556Srgrimes --cp; 6291556Srgrimes } 6301556Srgrimes cp++; 6311556Srgrimes memmove(ns, s, (size_t)(cp - s)); /* copy up to trailing number */ 6321556Srgrimes ns += cp - s; 6331556Srgrimes /* 6341556Srgrimes * if there's a trailing number, and not a preceding 'p' (pid) or 6351556Srgrimes * 't' (tty) flag, then assume it's a pid and insert a 'p' flag. 6361556Srgrimes */ 6378855Srgrimes if (isdigit(*cp) && 6387165Sjoerg (cp == s || (cp[-1] != 't' && cp[-1] != 'p')) && 6397165Sjoerg (cp - 1 == s || cp[-2] != 't')) 6401556Srgrimes *ns++ = 'p'; 6411556Srgrimes (void)strcpy(ns, cp); /* and append the number */ 6421556Srgrimes 6431556Srgrimes return (newopts); 6441556Srgrimes} 6451556Srgrimes 6461556Srgrimesstatic void 64790110Simpusage(void) 6481556Srgrimes{ 6491556Srgrimes 65026465Scharnier (void)fprintf(stderr, "%s\n%s\n%s\n", 65126465Scharnier "usage: ps [-aChjlmrSTuvwx] [-O|o fmt] [-p pid] [-t tty] [-U user]", 65289909Sru " [-M core] [-N system]", 65326465Scharnier " ps [-L]"); 6541556Srgrimes exit(1); 6551556Srgrimes} 656