fmt.c revision 90110
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 90110 2002-02-02 06:48:10Z imp $"; 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 5390110Simpstatic char *cmdpart(char *); 5490110Simpstatic char *shquote(char **); 551556Srgrimes 561556Srgrimes/* 571556Srgrimes * XXX 581556Srgrimes * This is a stub until marc does the real one. 591556Srgrimes */ 601556Srgrimesstatic char * 6190110Simpshquote(char **argv) 621556Srgrimes{ 6389575Smikeh static long arg_max = -1; 6489575Smikeh long len; 651556Srgrimes char **p, *dst, *src; 6637027Sjkoshy static char *buf = NULL; 671556Srgrimes 6837027Sjkoshy if (buf == NULL) { 6937027Sjkoshy if ((arg_max = sysconf(_SC_ARG_MAX)) == -1) 7037027Sjkoshy errx(1, "sysconf _SC_ARG_MAX failed"); 7137027Sjkoshy if ((buf = malloc((4 * arg_max) + 1)) == NULL) 7237027Sjkoshy errx(1, "malloc failed"); 7337027Sjkoshy } 7437027Sjkoshy 751556Srgrimes if (*argv == 0) { 761556Srgrimes buf[0] = 0; 771556Srgrimes return (buf); 781556Srgrimes } 791556Srgrimes dst = buf; 801556Srgrimes for (p = argv; (src = *p++) != 0; ) { 811556Srgrimes if (*src == 0) 821556Srgrimes continue; 8389575Smikeh len = (4 * arg_max - (dst - buf)) / 4; 8489575Smikeh strvisx(dst, src, strlen(src) < len ? strlen(src) : len, 8589575Smikeh VIS_NL | VIS_CSTYLE); 861556Srgrimes while (*dst) 871556Srgrimes dst++; 8889575Smikeh if ((4 * arg_max - (dst - buf)) / 4 > 0) 8989575Smikeh *dst++ = ' '; 901556Srgrimes } 916971Sdg /* Chop off trailing space */ 9289575Smikeh if (dst != buf && dst[-1] == ' ') 936971Sdg dst--; 941556Srgrimes *dst = '\0'; 951556Srgrimes return (buf); 961556Srgrimes} 971556Srgrimes 981556Srgrimesstatic char * 9990110Simpcmdpart(char *arg0) 1001556Srgrimes{ 1011556Srgrimes char *cp; 1021556Srgrimes 1031556Srgrimes return ((cp = strrchr(arg0, '/')) != NULL ? cp + 1 : arg0); 1041556Srgrimes} 1051556Srgrimes 1061556Srgrimeschar * 10790110Simpfmt_argv(char **argv, char *cmd, int maxlen) 1081556Srgrimes{ 1091556Srgrimes int len; 1101556Srgrimes char *ap, *cp; 1111556Srgrimes 1121556Srgrimes if (argv == 0 || argv[0] == 0) { 1131556Srgrimes if (cmd == NULL) 1141556Srgrimes return (""); 1151556Srgrimes ap = NULL; 1161556Srgrimes len = maxlen + 3; 1171556Srgrimes } else { 1181556Srgrimes ap = shquote(argv); 1191556Srgrimes len = strlen(ap) + maxlen + 4; 1201556Srgrimes } 1211556Srgrimes if ((cp = malloc(len)) == NULL) 1221556Srgrimes return (NULL); 1231556Srgrimes if (ap == NULL) 1246971Sdg sprintf(cp, " (%.*s)", maxlen, cmd); 1251556Srgrimes else if (strncmp(cmdpart(argv[0]), cmd, maxlen) != 0) 1266971Sdg sprintf(cp, "%s (%.*s)", ap, maxlen, cmd); 1271556Srgrimes else 1281556Srgrimes (void) strcpy(cp, ap); 1291556Srgrimes return (cp); 1301556Srgrimes} 131