fmt.c revision 99457
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#if 0 351556Srgrimes#ifndef lint 3636049Scharnierstatic char sccsid[] = "@(#)fmt.c 8.4 (Berkeley) 4/15/94"; 3736049Scharnier#endif 3890143Smarkm#endif 3999110Sobrien#include <sys/cdefs.h> 4099110Sobrien__FBSDID("$FreeBSD: head/bin/ps/fmt.c 99457 2002-07-05 15:58:27Z mike $"); 411556Srgrimes 4241580Sbde#include <sys/types.h> 431556Srgrimes#include <sys/time.h> 441556Srgrimes#include <sys/resource.h> 4590143Smarkm 4641580Sbde#include <err.h> 4796053Sjmallett#include <limits.h> 481556Srgrimes#include <stdio.h> 4999457Smike#include <stdint.h> 501556Srgrimes#include <stdlib.h> 511556Srgrimes#include <string.h> 5237027Sjkoshy#include <unistd.h> 531556Srgrimes#include <vis.h> 5490143Smarkm 551556Srgrimes#include "ps.h" 561556Srgrimes 5790110Simpstatic char *cmdpart(char *); 5890110Simpstatic char *shquote(char **); 591556Srgrimes 601556Srgrimesstatic char * 6190110Simpshquote(char **argv) 621556Srgrimes{ 6396053Sjmallett long arg_max; 6496053Sjmallett static size_t buf_size; 6590143Smarkm size_t 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"); 7297978Sjmallett if (arg_max >= LONG_MAX / 4 || 4 * arg_max + 1 > SIZE_MAX) 7396053Sjmallett errx(1, "sysconf _SC_ARG_MAX preposterously large"); 7496053Sjmallett buf_size = 4 * arg_max + 1; 7596053Sjmallett if ((buf = malloc(buf_size)) == NULL) 7696053Sjmallett errx(1, "malloc failed"); 7737027Sjkoshy } 7837027Sjkoshy 7997845Sjmallett if (*argv == NULL) { 8097845Sjmallett buf[0] = '\0'; 811556Srgrimes return (buf); 821556Srgrimes } 831556Srgrimes dst = buf; 8497845Sjmallett for (p = argv; (src = *p++) != NULL; ) { 8597845Sjmallett if (*src == '\0') 861556Srgrimes continue; 8796053Sjmallett len = (buf_size - 1 - (dst - buf)) / 4; 8889575Smikeh strvisx(dst, src, strlen(src) < len ? strlen(src) : len, 8989575Smikeh VIS_NL | VIS_CSTYLE); 9097845Sjmallett while (*dst != '\0') 911556Srgrimes dst++; 9296053Sjmallett if ((buf_size - 1 - (dst - buf)) / 4 > 0) 9389575Smikeh *dst++ = ' '; 941556Srgrimes } 956971Sdg /* Chop off trailing space */ 9689575Smikeh if (dst != buf && dst[-1] == ' ') 976971Sdg dst--; 981556Srgrimes *dst = '\0'; 991556Srgrimes return (buf); 1001556Srgrimes} 1011556Srgrimes 1021556Srgrimesstatic char * 10390110Simpcmdpart(char *arg0) 1041556Srgrimes{ 1051556Srgrimes char *cp; 1061556Srgrimes 1071556Srgrimes return ((cp = strrchr(arg0, '/')) != NULL ? cp + 1 : arg0); 1081556Srgrimes} 1091556Srgrimes 11090143Smarkmconst char * 11190143Smarkmfmt_argv(char **argv, char *cmd, size_t maxlen) 1121556Srgrimes{ 11390143Smarkm size_t len; 1141556Srgrimes char *ap, *cp; 1151556Srgrimes 11690143Smarkm if (argv == NULL || argv[0] == NULL) { 1171556Srgrimes if (cmd == NULL) 1181556Srgrimes return (""); 1191556Srgrimes ap = NULL; 1201556Srgrimes len = maxlen + 3; 1211556Srgrimes } else { 1221556Srgrimes ap = shquote(argv); 1231556Srgrimes len = strlen(ap) + maxlen + 4; 1241556Srgrimes } 12590143Smarkm cp = malloc(len); 12690143Smarkm if (cp == NULL) 12797847Sjmallett errx(1, "malloc failed"); 1281556Srgrimes if (ap == NULL) 12990143Smarkm sprintf(cp, " (%.*s)", (int)maxlen, cmd); 1301556Srgrimes else if (strncmp(cmdpart(argv[0]), cmd, maxlen) != 0) 13190143Smarkm sprintf(cp, "%s (%.*s)", ap, (int)maxlen, cmd); 1321556Srgrimes else 1331556Srgrimes (void) strcpy(cp, ap); 1341556Srgrimes return (cp); 1351556Srgrimes} 136