fmt.c revision 89575
11556Srgrimes/*- 21556Srgrimes * Copyright (c) 1992, 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 3536049Scharnier#if 0 3636049Scharnierstatic char sccsid[] = "@(#)fmt.c 8.4 (Berkeley) 4/15/94"; 3736049Scharnier#endif 3836049Scharnierstatic const char rcsid[] = 3950471Speter "$FreeBSD: head/bin/ps/fmt.c 89575 2002-01-20 01:30:40Z mikeh $"; 401556Srgrimes#endif /* not lint */ 411556Srgrimes 4241580Sbde#include <sys/types.h> 431556Srgrimes#include <sys/time.h> 441556Srgrimes#include <sys/resource.h> 4541580Sbde#include <err.h> 461556Srgrimes#include <stdio.h> 471556Srgrimes#include <stdlib.h> 481556Srgrimes#include <string.h> 4937027Sjkoshy#include <unistd.h> 501556Srgrimes#include <vis.h> 511556Srgrimes#include "ps.h" 521556Srgrimes 531556Srgrimesstatic char *cmdpart __P((char *)); 541556Srgrimesstatic char *shquote __P((char **)); 551556Srgrimes 561556Srgrimes/* 571556Srgrimes * XXX 581556Srgrimes * This is a stub until marc does the real one. 591556Srgrimes */ 601556Srgrimesstatic char * 611556Srgrimesshquote(argv) 621556Srgrimes char **argv; 631556Srgrimes{ 6489575Smikeh static long arg_max = -1; 6589575Smikeh long len; 661556Srgrimes char **p, *dst, *src; 6737027Sjkoshy static char *buf = NULL; 681556Srgrimes 6937027Sjkoshy if (buf == NULL) { 7037027Sjkoshy if ((arg_max = sysconf(_SC_ARG_MAX)) == -1) 7137027Sjkoshy errx(1, "sysconf _SC_ARG_MAX failed"); 7237027Sjkoshy if ((buf = malloc((4 * arg_max) + 1)) == NULL) 7337027Sjkoshy errx(1, "malloc failed"); 7437027Sjkoshy } 7537027Sjkoshy 761556Srgrimes if (*argv == 0) { 771556Srgrimes buf[0] = 0; 781556Srgrimes return (buf); 791556Srgrimes } 801556Srgrimes dst = buf; 811556Srgrimes for (p = argv; (src = *p++) != 0; ) { 821556Srgrimes if (*src == 0) 831556Srgrimes continue; 8489575Smikeh len = (4 * arg_max - (dst - buf)) / 4; 8589575Smikeh strvisx(dst, src, strlen(src) < len ? strlen(src) : len, 8689575Smikeh VIS_NL | VIS_CSTYLE); 871556Srgrimes while (*dst) 881556Srgrimes dst++; 8989575Smikeh if ((4 * arg_max - (dst - buf)) / 4 > 0) 9089575Smikeh *dst++ = ' '; 911556Srgrimes } 926971Sdg /* Chop off trailing space */ 9389575Smikeh if (dst != buf && dst[-1] == ' ') 946971Sdg dst--; 951556Srgrimes *dst = '\0'; 961556Srgrimes return (buf); 971556Srgrimes} 981556Srgrimes 991556Srgrimesstatic char * 1001556Srgrimescmdpart(arg0) 1011556Srgrimes char *arg0; 1021556Srgrimes{ 1031556Srgrimes char *cp; 1041556Srgrimes 1051556Srgrimes return ((cp = strrchr(arg0, '/')) != NULL ? cp + 1 : arg0); 1061556Srgrimes} 1071556Srgrimes 1081556Srgrimeschar * 1091556Srgrimesfmt_argv(argv, cmd, maxlen) 1101556Srgrimes char **argv; 1111556Srgrimes char *cmd; 1121556Srgrimes int maxlen; 1131556Srgrimes{ 1141556Srgrimes int len; 1151556Srgrimes char *ap, *cp; 1161556Srgrimes 1171556Srgrimes if (argv == 0 || argv[0] == 0) { 1181556Srgrimes if (cmd == NULL) 1191556Srgrimes return (""); 1201556Srgrimes ap = NULL; 1211556Srgrimes len = maxlen + 3; 1221556Srgrimes } else { 1231556Srgrimes ap = shquote(argv); 1241556Srgrimes len = strlen(ap) + maxlen + 4; 1251556Srgrimes } 1261556Srgrimes if ((cp = malloc(len)) == NULL) 1271556Srgrimes return (NULL); 1281556Srgrimes if (ap == NULL) 1296971Sdg sprintf(cp, " (%.*s)", maxlen, cmd); 1301556Srgrimes else if (strncmp(cmdpart(argv[0]), cmd, maxlen) != 0) 1316971Sdg sprintf(cp, "%s (%.*s)", ap, maxlen, cmd); 1321556Srgrimes else 1331556Srgrimes (void) strcpy(cp, ap); 1341556Srgrimes return (cp); 1351556Srgrimes} 136