1*0adec678Sderaadt /* $OpenBSD: ps.c,v 1.58 2013/10/31 01:59:33 deraadt Exp $ */ 2df930be7Sderaadt /* $NetBSD: ps.c,v 1.15 1995/05/18 20:33:25 mycroft Exp $ */ 3df930be7Sderaadt 4df930be7Sderaadt /*- 5df930be7Sderaadt * Copyright (c) 1990, 1993, 1994 6df930be7Sderaadt * The Regents of the University of California. All rights reserved. 7df930be7Sderaadt * 8df930be7Sderaadt * Redistribution and use in source and binary forms, with or without 9df930be7Sderaadt * modification, are permitted provided that the following conditions 10df930be7Sderaadt * are met: 11df930be7Sderaadt * 1. Redistributions of source code must retain the above copyright 12df930be7Sderaadt * notice, this list of conditions and the following disclaimer. 13df930be7Sderaadt * 2. Redistributions in binary form must reproduce the above copyright 14df930be7Sderaadt * notice, this list of conditions and the following disclaimer in the 15df930be7Sderaadt * documentation and/or other materials provided with the distribution. 1629295d1cSmillert * 3. Neither the name of the University nor the names of its contributors 17df930be7Sderaadt * may be used to endorse or promote products derived from this software 18df930be7Sderaadt * without specific prior written permission. 19df930be7Sderaadt * 20df930be7Sderaadt * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21df930be7Sderaadt * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22df930be7Sderaadt * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23df930be7Sderaadt * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24df930be7Sderaadt * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25df930be7Sderaadt * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26df930be7Sderaadt * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27df930be7Sderaadt * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28df930be7Sderaadt * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29df930be7Sderaadt * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30df930be7Sderaadt * SUCH DAMAGE. 31df930be7Sderaadt */ 32df930be7Sderaadt 33df930be7Sderaadt #include <sys/param.h> 34*0adec678Sderaadt #include <sys/sysctl.h> 35df930be7Sderaadt #include <sys/user.h> 36df930be7Sderaadt #include <sys/time.h> 37df930be7Sderaadt #include <sys/resource.h> 38df930be7Sderaadt #include <sys/proc.h> 39df930be7Sderaadt #include <sys/stat.h> 40df930be7Sderaadt #include <sys/ioctl.h> 41df930be7Sderaadt 42df930be7Sderaadt #include <ctype.h> 43df930be7Sderaadt #include <err.h> 44df930be7Sderaadt #include <errno.h> 45df930be7Sderaadt #include <fcntl.h> 46df930be7Sderaadt #include <kvm.h> 47df930be7Sderaadt #include <nlist.h> 48df930be7Sderaadt #include <paths.h> 4952576792Salex #include <pwd.h> 50df930be7Sderaadt #include <stdio.h> 51df930be7Sderaadt #include <stdlib.h> 52df930be7Sderaadt #include <string.h> 53df930be7Sderaadt #include <unistd.h> 546763c4d8Sderaadt #include <limits.h> 55df930be7Sderaadt 56df930be7Sderaadt #include "ps.h" 57df930be7Sderaadt 589517852aSmpech extern char *__progname; 599517852aSmpech 6079f972fbSderaadt struct varent *vhead; 61df930be7Sderaadt 62df930be7Sderaadt int eval; /* exit value */ 63df930be7Sderaadt int rawcpu; /* -C */ 64df930be7Sderaadt int sumrusage; /* -S */ 65df930be7Sderaadt int termwidth; /* width of screen (0 == infinity) */ 66df930be7Sderaadt int totwidth; /* calculated width of requested variables */ 67df930be7Sderaadt 686b176adcSmillert int needcomm, needenv, neednlist, commandonly; 69df930be7Sderaadt 704527c594Smillert enum sort { DEFAULT, SORTMEM, SORTCPU } sortby = DEFAULT; 71df930be7Sderaadt 72c72b5b24Smillert static char *kludge_oldps_options(char *); 73c72b5b24Smillert static int pscomp(const void *, const void *); 74c72b5b24Smillert static void scanvars(void); 75c72b5b24Smillert static void usage(void); 76df930be7Sderaadt 77df930be7Sderaadt char dfmt[] = "pid tt state time command"; 78b9d9655cSjsing char tfmt[] = "pid tid tt state time command"; 79df930be7Sderaadt char jfmt[] = "user pid ppid pgid sess jobc state tt time command"; 80df930be7Sderaadt char lfmt[] = "uid pid ppid cpu pri nice vsz rss wchan state tt time command"; 81df930be7Sderaadt char o1[] = "pid"; 82df930be7Sderaadt char o2[] = "tt state time command"; 83df930be7Sderaadt char ufmt[] = "user pid %cpu %mem vsz rss tt state start time command"; 84df930be7Sderaadt char vfmt[] = "pid state time sl re pagein vsz rss lim tsiz %cpu %mem command"; 85df930be7Sderaadt 86df930be7Sderaadt kvm_t *kd; 875877eea9Sart int kvm_sysctl_only; 88df930be7Sderaadt 89df930be7Sderaadt int 9028416801Sderaadt main(int argc, char *argv[]) 91df930be7Sderaadt { 925027561dSguenther struct kinfo_proc *kp, **kinfo; 93df930be7Sderaadt struct varent *vent; 94df930be7Sderaadt struct winsize ws; 9552576792Salex struct passwd *pwd; 96df930be7Sderaadt dev_t ttydev; 97df930be7Sderaadt pid_t pid; 98df930be7Sderaadt uid_t uid; 991601eb99Sguenther int all, ch, flag, i, fmt, lineno, nentries; 100fc7b2cf1Sguenther int prtheader, showthreads, wflag, kflag, what, Uflag, xflg; 1016763c4d8Sderaadt char *nlistf, *memf, *swapf, errbuf[_POSIX2_LINE_MAX]; 102df930be7Sderaadt 103496bd962Sderaadt if ((ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws) == -1 && 104496bd962Sderaadt ioctl(STDERR_FILENO, TIOCGWINSZ, &ws) == -1 && 105496bd962Sderaadt ioctl(STDIN_FILENO, TIOCGWINSZ, &ws) == -1) || 106df930be7Sderaadt ws.ws_col == 0) 107df930be7Sderaadt termwidth = 79; 108df930be7Sderaadt else 109df930be7Sderaadt termwidth = ws.ws_col - 1; 110df930be7Sderaadt 111df930be7Sderaadt if (argc > 1) 112df930be7Sderaadt argv[1] = kludge_oldps_options(argv[1]); 113df930be7Sderaadt 114fc7b2cf1Sguenther all = fmt = prtheader = showthreads = wflag = kflag = Uflag = xflg = 0; 115df930be7Sderaadt pid = -1; 116b9badb0aSotto uid = 0; 117df930be7Sderaadt ttydev = NODEV; 118df930be7Sderaadt memf = nlistf = swapf = NULL; 119df930be7Sderaadt while ((ch = getopt(argc, argv, 1209ea50c04Sokan "AaCcegHhjkLlM:mN:O:o:p:rSTt:U:uvW:wx")) != -1) 121c9c5a36dSkevlo switch (ch) { 1229ea50c04Sokan case 'A': 1239ea50c04Sokan all = 1; 1249ea50c04Sokan xflg = 1; 1259ea50c04Sokan break; 126df930be7Sderaadt case 'a': 127df930be7Sderaadt all = 1; 128df930be7Sderaadt break; 1299ea50c04Sokan case 'C': 1309ea50c04Sokan rawcpu = 1; 1319ea50c04Sokan break; 132df930be7Sderaadt case 'c': 133df930be7Sderaadt commandonly = 1; 134df930be7Sderaadt break; 135df930be7Sderaadt case 'e': /* XXX set ufmt */ 136df930be7Sderaadt needenv = 1; 137df930be7Sderaadt break; 138df930be7Sderaadt case 'g': 139df930be7Sderaadt break; /* no-op */ 140fc7b2cf1Sguenther case 'H': 141fc7b2cf1Sguenther showthreads = 1; 142fc7b2cf1Sguenther break; 143df930be7Sderaadt case 'h': 144df930be7Sderaadt prtheader = ws.ws_row > 5 ? ws.ws_row : 22; 145df930be7Sderaadt break; 146df930be7Sderaadt case 'j': 147df930be7Sderaadt parsefmt(jfmt); 148df930be7Sderaadt fmt = 1; 149df930be7Sderaadt jfmt[0] = '\0'; 150df930be7Sderaadt break; 1513f2d366dSniklas case 'k': 1523f2d366dSniklas kflag++; 1533f2d366dSniklas break; 154df930be7Sderaadt case 'L': 155df930be7Sderaadt showkey(); 156df930be7Sderaadt exit(0); 157df930be7Sderaadt case 'l': 158df930be7Sderaadt parsefmt(lfmt); 159df930be7Sderaadt fmt = 1; 160df930be7Sderaadt lfmt[0] = '\0'; 161df930be7Sderaadt break; 162df930be7Sderaadt case 'M': 163df930be7Sderaadt memf = optarg; 164df930be7Sderaadt break; 165df930be7Sderaadt case 'm': 166df930be7Sderaadt sortby = SORTMEM; 167df930be7Sderaadt break; 168df930be7Sderaadt case 'N': 169df930be7Sderaadt nlistf = optarg; 170df930be7Sderaadt break; 171df930be7Sderaadt case 'O': 172df930be7Sderaadt parsefmt(o1); 173df930be7Sderaadt parsefmt(optarg); 174df930be7Sderaadt parsefmt(o2); 175df930be7Sderaadt o1[0] = o2[0] = '\0'; 176df930be7Sderaadt fmt = 1; 177df930be7Sderaadt break; 178df930be7Sderaadt case 'o': 179df930be7Sderaadt parsefmt(optarg); 180df930be7Sderaadt fmt = 1; 181df930be7Sderaadt break; 182df930be7Sderaadt case 'p': 183df930be7Sderaadt pid = atol(optarg); 184df930be7Sderaadt xflg = 1; 185df930be7Sderaadt break; 186df930be7Sderaadt case 'r': 187df930be7Sderaadt sortby = SORTCPU; 188df930be7Sderaadt break; 189df930be7Sderaadt case 'S': 190df930be7Sderaadt sumrusage = 1; 191df930be7Sderaadt break; 192df930be7Sderaadt case 'T': 193df930be7Sderaadt if ((optarg = ttyname(STDIN_FILENO)) == NULL) 194df930be7Sderaadt errx(1, "stdin: not a terminal"); 195df930be7Sderaadt /* FALLTHROUGH */ 196df930be7Sderaadt case 't': { 197df930be7Sderaadt struct stat sb; 198df930be7Sderaadt char *ttypath, pathbuf[MAXPATHLEN]; 199df930be7Sderaadt 200df930be7Sderaadt if (strcmp(optarg, "co") == 0) 201df930be7Sderaadt ttypath = _PATH_CONSOLE; 202df930be7Sderaadt else if (*optarg != '/') 203df930be7Sderaadt (void)snprintf(ttypath = pathbuf, 204df930be7Sderaadt sizeof(pathbuf), "%s%s", _PATH_TTY, optarg); 205df930be7Sderaadt else 206df930be7Sderaadt ttypath = optarg; 207df930be7Sderaadt if (stat(ttypath, &sb) == -1) 208df930be7Sderaadt err(1, "%s", ttypath); 209df930be7Sderaadt if (!S_ISCHR(sb.st_mode)) 210df930be7Sderaadt errx(1, "%s: not a terminal", ttypath); 211df930be7Sderaadt ttydev = sb.st_rdev; 212df930be7Sderaadt break; 213df930be7Sderaadt } 21452576792Salex case 'U': 21552576792Salex pwd = getpwnam(optarg); 21652576792Salex if (pwd == NULL) 21752576792Salex errx(1, "%s: no such user", optarg); 21852576792Salex uid = pwd->pw_uid; 21952576792Salex endpwent(); 220b9badb0aSotto Uflag = xflg = 1; 22152576792Salex break; 222df930be7Sderaadt case 'u': 223df930be7Sderaadt parsefmt(ufmt); 224df930be7Sderaadt sortby = SORTCPU; 225df930be7Sderaadt fmt = 1; 226df930be7Sderaadt ufmt[0] = '\0'; 227df930be7Sderaadt break; 228df930be7Sderaadt case 'v': 229df930be7Sderaadt parsefmt(vfmt); 230df930be7Sderaadt sortby = SORTMEM; 231df930be7Sderaadt fmt = 1; 232df930be7Sderaadt vfmt[0] = '\0'; 233df930be7Sderaadt break; 234df930be7Sderaadt case 'W': 235df930be7Sderaadt swapf = optarg; 236df930be7Sderaadt break; 237df930be7Sderaadt case 'w': 238df930be7Sderaadt if (wflag) 239df930be7Sderaadt termwidth = UNLIMITED; 240df930be7Sderaadt else if (termwidth < 131) 241df930be7Sderaadt termwidth = 131; 242df930be7Sderaadt wflag++; 243df930be7Sderaadt break; 244df930be7Sderaadt case 'x': 245df930be7Sderaadt xflg = 1; 246df930be7Sderaadt break; 247df930be7Sderaadt default: 248df930be7Sderaadt usage(); 249df930be7Sderaadt } 250df930be7Sderaadt argc -= optind; 251df930be7Sderaadt argv += optind; 252df930be7Sderaadt 253df930be7Sderaadt #define BACKWARD_COMPATIBILITY 254df930be7Sderaadt #ifdef BACKWARD_COMPATIBILITY 255df930be7Sderaadt if (*argv) { 256df930be7Sderaadt nlistf = *argv; 257df930be7Sderaadt if (*++argv) { 258df930be7Sderaadt memf = *argv; 259df930be7Sderaadt if (*++argv) 260df930be7Sderaadt swapf = *argv; 261df930be7Sderaadt } 262df930be7Sderaadt } 263df930be7Sderaadt #endif 264df930be7Sderaadt 2655877eea9Sart if (nlistf == NULL && memf == NULL && swapf == NULL) { 2665877eea9Sart kd = kvm_openfiles(NULL, NULL, NULL, KVM_NO_FILES, errbuf); 2675877eea9Sart kvm_sysctl_only = 1; 2685877eea9Sart } else { 269df930be7Sderaadt kd = kvm_openfiles(nlistf, memf, swapf, O_RDONLY, errbuf); 2705877eea9Sart } 271f2812ea1Sguenther if (kd == NULL) 272df930be7Sderaadt errx(1, "%s", errbuf); 273df930be7Sderaadt 274b9d9655cSjsing if (!fmt) { 275b9d9655cSjsing if (showthreads) 276b9d9655cSjsing parsefmt(tfmt); 277b9d9655cSjsing else 278df930be7Sderaadt parsefmt(dfmt); 279b9d9655cSjsing } 280df930be7Sderaadt 28152576792Salex /* XXX - should be cleaner */ 282ba86f864Sotto if (!all && ttydev == NODEV && pid == -1 && !Uflag) { 283df930be7Sderaadt uid = getuid(); 284ba86f864Sotto Uflag = 1; 285ba86f864Sotto } 286df930be7Sderaadt 287df930be7Sderaadt /* 288df930be7Sderaadt * scan requested variables, noting what structures are needed, 28905ea949fSmillert * and adjusting header widths as appropriate. 290df930be7Sderaadt */ 291df930be7Sderaadt scanvars(); 2926b176adcSmillert 2936b176adcSmillert if (neednlist && !nlistread) 2946b176adcSmillert (void) donlist(); 2956b176adcSmillert 296df930be7Sderaadt /* 297df930be7Sderaadt * get proc list 298df930be7Sderaadt */ 299b9badb0aSotto if (Uflag) { 30090624e93Smillert what = KERN_PROC_UID; 30190624e93Smillert flag = uid; 302df930be7Sderaadt } else if (ttydev != NODEV) { 30390624e93Smillert what = KERN_PROC_TTY; 30490624e93Smillert flag = ttydev; 305df930be7Sderaadt } else if (pid != -1) { 30690624e93Smillert what = KERN_PROC_PID; 30790624e93Smillert flag = pid; 3083f2d366dSniklas } else if (kflag) { 30990624e93Smillert what = KERN_PROC_KTHREAD; 3103f2d366dSniklas flag = 0; 311df930be7Sderaadt } else { 31290624e93Smillert what = KERN_PROC_ALL; 313df930be7Sderaadt flag = 0; 314df930be7Sderaadt } 3156171375dSpirofti if (showthreads) 3166171375dSpirofti what |= KERN_PROC_SHOW_THREADS; 317970ac3e4Sderaadt 318df930be7Sderaadt /* 319df930be7Sderaadt * select procs 320df930be7Sderaadt */ 3215027561dSguenther kp = kvm_getprocs(kd, what, flag, sizeof(*kp), &nentries); 322e6592a11Sangelos if (kp == NULL) 32390624e93Smillert errx(1, "%s", kvm_geterr(kd)); 324f2812ea1Sguenther 325df930be7Sderaadt /* 326df930be7Sderaadt * print header 327df930be7Sderaadt */ 328df930be7Sderaadt printheader(); 329df930be7Sderaadt if (nentries == 0) 330a30d4cafSmichaels exit(1); 331df930be7Sderaadt /* 33290624e93Smillert * sort proc list, we convert from an array of structs to an array 33390624e93Smillert * of pointers to make the sort cheaper. 334df930be7Sderaadt */ 335c72232dbSderaadt if ((kinfo = calloc(sizeof(*kinfo), nentries)) == NULL) 33690624e93Smillert err(1, "failed to allocate memory for proc pointers"); 33790624e93Smillert for (i = 0; i < nentries; i++) 33890624e93Smillert kinfo[i] = &kp[i]; 33990624e93Smillert qsort(kinfo, nentries, sizeof(*kinfo), pscomp); 340df930be7Sderaadt /* 341df930be7Sderaadt * for each proc, call each variable output function. 342df930be7Sderaadt */ 343df930be7Sderaadt for (i = lineno = 0; i < nentries; i++) { 344fc7b2cf1Sguenther if (showthreads == 0 && (kinfo[i]->p_flag & P_THREAD) != 0) 345fc7b2cf1Sguenther continue; 34679f972fbSderaadt if (xflg == 0 && ((int)kinfo[i]->p_tdev == NODEV || 347447f61ceSguenther (kinfo[i]->p_psflags & PS_CONTROLT ) == 0)) 348df930be7Sderaadt continue; 349243c13beSpirofti if (showthreads && kinfo[i]->p_tid == -1) 350243c13beSpirofti continue; 351df930be7Sderaadt for (vent = vhead; vent; vent = vent->next) { 35290624e93Smillert (vent->var->oproc)(kinfo[i], vent); 353df930be7Sderaadt if (vent->next != NULL) 354df930be7Sderaadt (void)putchar(' '); 355df930be7Sderaadt } 356df930be7Sderaadt (void)putchar('\n'); 357df930be7Sderaadt if (prtheader && lineno++ == prtheader - 4) { 358df930be7Sderaadt (void)putchar('\n'); 359df930be7Sderaadt printheader(); 360df930be7Sderaadt lineno = 0; 361df930be7Sderaadt } 362df930be7Sderaadt } 363df930be7Sderaadt exit(eval); 364df930be7Sderaadt } 365df930be7Sderaadt 366df930be7Sderaadt static void 36728416801Sderaadt scanvars(void) 368df930be7Sderaadt { 369df930be7Sderaadt struct varent *vent; 370df930be7Sderaadt VAR *v; 371df930be7Sderaadt int i; 372df930be7Sderaadt 373df930be7Sderaadt for (vent = vhead; vent; vent = vent->next) { 374df930be7Sderaadt v = vent->var; 375df930be7Sderaadt i = strlen(v->header); 376df930be7Sderaadt if (v->width < i) 377df930be7Sderaadt v->width = i; 378df930be7Sderaadt totwidth += v->width + 1; /* +1 for space */ 379df930be7Sderaadt if (v->flag & COMM) 380df930be7Sderaadt needcomm = 1; 3816b176adcSmillert if (v->flag & NLIST) 3826b176adcSmillert neednlist = 1; 383df930be7Sderaadt } 384df930be7Sderaadt totwidth--; 385df930be7Sderaadt } 386df930be7Sderaadt 387df930be7Sderaadt static int 38890624e93Smillert pscomp(const void *v1, const void *v2) 389df930be7Sderaadt { 3905027561dSguenther const struct kinfo_proc *kp1 = *(const struct kinfo_proc **)v1; 3915027561dSguenther const struct kinfo_proc *kp2 = *(const struct kinfo_proc **)v2; 392df930be7Sderaadt int i; 39390624e93Smillert #define VSIZE(k) ((k)->p_vm_dsize + (k)->p_vm_ssize + (k)->p_vm_tsize) 394df930be7Sderaadt 39590624e93Smillert if (sortby == SORTCPU && (i = getpcpu(kp2) - getpcpu(kp1)) != 0) 39690624e93Smillert return (i); 39790624e93Smillert if (sortby == SORTMEM && (i = VSIZE(kp2) - VSIZE(kp1)) != 0) 39890624e93Smillert return (i); 39990624e93Smillert if ((i = kp1->p_tdev - kp2->p_tdev) == 0 && 40090624e93Smillert (i = kp1->p_ustart_sec - kp2->p_ustart_sec) == 0) 40190624e93Smillert i = kp1->p_ustart_usec - kp2->p_ustart_usec; 402fffbb510Smillert return (i); 403fffbb510Smillert } 404df930be7Sderaadt 405df930be7Sderaadt /* 406df930be7Sderaadt * ICK (all for getopt), would rather hide the ugliness 407df930be7Sderaadt * here than taint the main code. 408df930be7Sderaadt * 409df930be7Sderaadt * ps foo -> ps -foo 410df930be7Sderaadt * ps 34 -> ps -p34 411df930be7Sderaadt * 412df930be7Sderaadt * The old convention that 't' with no trailing tty arg means the users 413df930be7Sderaadt * tty, is only supported if argv[1] doesn't begin with a '-'. This same 414df930be7Sderaadt * feature is available with the option 'T', which takes no argument. 415df930be7Sderaadt */ 416df930be7Sderaadt static char * 41728416801Sderaadt kludge_oldps_options(char *s) 418df930be7Sderaadt { 419df930be7Sderaadt size_t len; 420df930be7Sderaadt char *newopts, *ns, *cp; 421df930be7Sderaadt 422df930be7Sderaadt len = strlen(s); 423263704f2Sderaadt if ((newopts = ns = malloc(2 + len + 1)) == NULL) 424df930be7Sderaadt err(1, NULL); 425df930be7Sderaadt /* 426df930be7Sderaadt * options begin with '-' 427df930be7Sderaadt */ 428df930be7Sderaadt if (*s != '-') 429df930be7Sderaadt *ns++ = '-'; /* add option flag */ 430263704f2Sderaadt 431df930be7Sderaadt /* 432df930be7Sderaadt * gaze to end of argv[1] 433df930be7Sderaadt */ 434df930be7Sderaadt cp = s + len - 1; 435df930be7Sderaadt /* 436df930be7Sderaadt * if last letter is a 't' flag with no argument (in the context 437df930be7Sderaadt * of the oldps options -- option string NOT starting with a '-' -- 438df930be7Sderaadt * then convert to 'T' (meaning *this* terminal, i.e. ttyname(0)). 439df930be7Sderaadt */ 440df930be7Sderaadt if (*cp == 't' && *s != '-') 441df930be7Sderaadt *cp = 'T'; 442df930be7Sderaadt else { 443df930be7Sderaadt /* 444df930be7Sderaadt * otherwise check for trailing number, which *may* be a 445df930be7Sderaadt * pid. 446df930be7Sderaadt */ 447df930be7Sderaadt while (cp >= s && isdigit(*cp)) 448df930be7Sderaadt --cp; 449df930be7Sderaadt } 450df930be7Sderaadt cp++; 451df930be7Sderaadt memmove(ns, s, (size_t)(cp - s)); /* copy up to trailing number */ 452df930be7Sderaadt ns += cp - s; 453df930be7Sderaadt /* 454df930be7Sderaadt * if there's a trailing number, and not a preceding 'p' (pid) or 455df930be7Sderaadt * 't' (tty) flag, then assume it's a pid and insert a 'p' flag. 456df930be7Sderaadt */ 457764064c4Smickey if (isdigit(*cp) && (cp == s || (cp[-1] != 't' && cp[-1] != 'p' && 458764064c4Smickey (cp - 1 == s || cp[-2] != 't')))) 459df930be7Sderaadt *ns++ = 'p'; 460263704f2Sderaadt /* and append the number */ 461263704f2Sderaadt (void)strlcpy(ns, cp, newopts + len + 3 - ns); 462df930be7Sderaadt 463df930be7Sderaadt return (newopts); 464df930be7Sderaadt } 465df930be7Sderaadt 466df930be7Sderaadt static void 46728416801Sderaadt usage(void) 468df930be7Sderaadt { 469df930be7Sderaadt (void)fprintf(stderr, 4709ea50c04Sokan "usage: %s [-AaCceHhjkLlmrSTuvwx] [-M core] [-N system] [-O fmt] [-o fmt] [-p pid]\n", 4719517852aSmpech __progname); 4729517852aSmpech (void)fprintf(stderr, 4735c0ffb2cSchl "%-*s[-t tty] [-U username] [-W swap]\n", (int)strlen(__progname) + 8, ""); 474df930be7Sderaadt exit(1); 475df930be7Sderaadt } 476