fmt.c revision 96053
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 3490143Smarkm#include <sys/cdefs.h> 3590143Smarkm 3690143Smarkm__FBSDID("$FreeBSD: head/bin/ps/fmt.c 96053 2002-05-05 04:42:50Z jmallett $"); 3790143Smarkm 3890143Smarkm#if 0 391556Srgrimes#ifndef lint 4036049Scharnierstatic char sccsid[] = "@(#)fmt.c 8.4 (Berkeley) 4/15/94"; 4136049Scharnier#endif 4290143Smarkm#endif 431556Srgrimes 4441580Sbde#include <sys/types.h> 451556Srgrimes#include <sys/time.h> 461556Srgrimes#include <sys/resource.h> 4790143Smarkm 4841580Sbde#include <err.h> 4996053Sjmallett#include <limits.h> 501556Srgrimes#include <stdio.h> 511556Srgrimes#include <stdlib.h> 521556Srgrimes#include <string.h> 5337027Sjkoshy#include <unistd.h> 541556Srgrimes#include <vis.h> 5590143Smarkm 561556Srgrimes#include "ps.h" 571556Srgrimes 5890110Simpstatic char *cmdpart(char *); 5990110Simpstatic char *shquote(char **); 601556Srgrimes 611556Srgrimes/* 621556Srgrimes * XXX 631556Srgrimes * This is a stub until marc does the real one. 641556Srgrimes */ 651556Srgrimesstatic char * 6690110Simpshquote(char **argv) 671556Srgrimes{ 6896053Sjmallett long arg_max; 6996053Sjmallett static size_t buf_size; 7090143Smarkm size_t len; 711556Srgrimes char **p, *dst, *src; 7237027Sjkoshy static char *buf = NULL; 731556Srgrimes 7437027Sjkoshy if (buf == NULL) { 7537027Sjkoshy if ((arg_max = sysconf(_SC_ARG_MAX)) == -1) 7637027Sjkoshy errx(1, "sysconf _SC_ARG_MAX failed"); 7796053Sjmallett if (arg_max >= LONG_MAX / 4 || 4 * arg_max + 1 > SIZE_MAX) 7896053Sjmallett errx(1, "sysconf _SC_ARG_MAX preposterously large"); 7996053Sjmallett buf_size = 4 * arg_max + 1; 8096053Sjmallett if ((buf = malloc(buf_size)) == NULL) 8196053Sjmallett errx(1, "malloc failed"); 8237027Sjkoshy } 8337027Sjkoshy 841556Srgrimes if (*argv == 0) { 851556Srgrimes buf[0] = 0; 861556Srgrimes return (buf); 871556Srgrimes } 881556Srgrimes dst = buf; 891556Srgrimes for (p = argv; (src = *p++) != 0; ) { 901556Srgrimes if (*src == 0) 911556Srgrimes continue; 9296053Sjmallett len = (buf_size - 1 - (dst - buf)) / 4; 9389575Smikeh strvisx(dst, src, strlen(src) < len ? strlen(src) : len, 9489575Smikeh VIS_NL | VIS_CSTYLE); 951556Srgrimes while (*dst) 961556Srgrimes dst++; 9796053Sjmallett if ((buf_size - 1 - (dst - buf)) / 4 > 0) 9889575Smikeh *dst++ = ' '; 991556Srgrimes } 1006971Sdg /* Chop off trailing space */ 10189575Smikeh if (dst != buf && dst[-1] == ' ') 1026971Sdg dst--; 1031556Srgrimes *dst = '\0'; 1041556Srgrimes return (buf); 1051556Srgrimes} 1061556Srgrimes 1071556Srgrimesstatic char * 10890110Simpcmdpart(char *arg0) 1091556Srgrimes{ 1101556Srgrimes char *cp; 1111556Srgrimes 1121556Srgrimes return ((cp = strrchr(arg0, '/')) != NULL ? cp + 1 : arg0); 1131556Srgrimes} 1141556Srgrimes 11590143Smarkmconst char * 11690143Smarkmfmt_argv(char **argv, char *cmd, size_t maxlen) 1171556Srgrimes{ 11890143Smarkm size_t len; 1191556Srgrimes char *ap, *cp; 1201556Srgrimes 12190143Smarkm if (argv == NULL || argv[0] == NULL) { 1221556Srgrimes if (cmd == NULL) 1231556Srgrimes return (""); 1241556Srgrimes ap = NULL; 1251556Srgrimes len = maxlen + 3; 1261556Srgrimes } else { 1271556Srgrimes ap = shquote(argv); 1281556Srgrimes len = strlen(ap) + maxlen + 4; 1291556Srgrimes } 13090143Smarkm cp = malloc(len); 13190143Smarkm if (cp == NULL) 1321556Srgrimes return (NULL); 1331556Srgrimes if (ap == NULL) 13490143Smarkm sprintf(cp, " (%.*s)", (int)maxlen, cmd); 1351556Srgrimes else if (strncmp(cmdpart(argv[0]), cmd, maxlen) != 0) 13690143Smarkm sprintf(cp, "%s (%.*s)", ap, (int)maxlen, cmd); 1371556Srgrimes else 1381556Srgrimes (void) strcpy(cp, ap); 1391556Srgrimes return (cp); 1401556Srgrimes} 141