1/*- 2 * Copyright (c) 1992, 1993, 1994 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30#include <sys/cdefs.h> 31 32#if 0 33#ifndef lint 34static char sccsid[] = "@(#)fmt.c 8.4 (Berkeley) 4/15/94"; 35#endif 36#endif 37 38#include <sys/types.h> 39#include <sys/time.h> 40#include <sys/resource.h> 41 42#include <err.h> 43#include <stdio.h> 44#include <stdlib.h> 45#include <string.h> 46#include <unistd.h> 47#include <vis.h> 48 49//#include "ps.h" 50 51static char *cmdpart(char *); 52static char *shquote(char **); 53 54/* 55 * XXX 56 * This is a stub until marc does the real one. 57 */ 58static char * 59shquote(char **argv) 60{ 61 static long arg_max = -1; 62 size_t len; 63 char **p, *dst, *src; 64 static char *buf = NULL; 65 66 if (buf == NULL) { 67 if ((arg_max = sysconf(_SC_ARG_MAX)) == -1) 68 errx(1, "sysconf _SC_ARG_MAX failed"); 69 if ((buf = malloc((u_int)(4 * arg_max) + 1)) == NULL) 70 errx(1, "malloc failed"); 71 } 72 73 if (*argv == 0) { 74 buf[0] = 0; 75 return (buf); 76 } 77 dst = buf; 78 for (p = argv; (src = *p++) != 0; ) { 79 if (*src == 0) 80 continue; 81 len = (size_t)(4 * arg_max - (dst - buf)) / 4; 82 strvisx(dst, src, strlen(src) < len ? strlen(src) : len, 83 VIS_NL | VIS_CSTYLE); 84 while (*dst) 85 dst++; 86 if ((4 * arg_max - (dst - buf)) / 4 > 0) 87 *dst++ = ' '; 88 } 89 /* Chop off trailing space */ 90 if (dst != buf && dst[-1] == ' ') 91 dst--; 92 *dst = '\0'; 93 return (buf); 94} 95 96static char * 97cmdpart(char *arg0) 98{ 99 char *cp; 100 101 return ((cp = strrchr(arg0, '/')) != NULL ? cp + 1 : arg0); 102} 103 104const char * 105fmt_argv(char **argv, char *cmd, size_t maxlen) 106{ 107 size_t len; 108 char *ap, *cp; 109 110 if (argv == NULL || argv[0] == NULL) { 111 if (cmd == NULL) 112 return (""); 113 ap = NULL; 114 len = maxlen + 3; 115 } else { 116 ap = shquote(argv); 117 len = strlen(ap) + maxlen + 4; 118 } 119 cp = malloc(len); 120 if (cp == NULL) 121 return (NULL); 122 if (ap == NULL) 123 sprintf(cp, " (%.*s)", (int)maxlen, cmd); 124 else if (strncmp(cmdpart(argv[0]), cmd, maxlen) != 0) 125 sprintf(cp, "%s (%.*s)", ap, (int)maxlen, cmd); 126 else 127 (void) strcpy(cp, ap); 128 return (cp); 129} 130