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. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 #ifndef lint 35 #if 0 36 static char sccsid[] = "@(#)fmt.c 8.4 (Berkeley) 4/15/94"; 37 #endif 38 static const char rcsid[] = 39 "$Id: fmt.c,v 1.11 1998/05/15 06:29:15 charnier Exp $"; 40 #endif /* not lint */ 41 42 #include <sys/param.h> 43 #include <sys/syslimits.h> 44 #include <sys/time.h> 45 #include <sys/resource.h> 46 #include <stdio.h> 47 #include <stdlib.h> 48 #include <string.h> 49 #include <unistd.h> 50 #include <vis.h> 51 #include "ps.h" 52 53 static char *cmdpart __P((char *)); 54 static char *shquote __P((char **)); 55 56 /* 57 * XXX 58 * This is a stub until marc does the real one. 59 */ 60 static char * 61 shquote(argv) 62 char **argv; 63 { 64 long arg_max; 65 char **p, *dst, *src; 66 static char *buf = NULL; 67 68 if (buf == NULL) { 69 if ((arg_max = sysconf(_SC_ARG_MAX)) == -1) 70 errx(1, "sysconf _SC_ARG_MAX failed"); 71 if ((buf = malloc((4 * arg_max) + 1)) == NULL) 72 errx(1, "malloc failed"); 73 } 74 75 if (*argv == 0) { 76 buf[0] = 0; 77 return (buf); 78 } 79 dst = buf; 80 for (p = argv; (src = *p++) != 0; ) { 81 if (*src == 0) 82 continue; 83 strvis(dst, src, VIS_NL | VIS_CSTYLE); 84 while (*dst) 85 dst++; 86 *dst++ = ' '; 87 } 88 /* Chop off trailing space */ 89 if (dst != buf) 90 dst--; 91 *dst = '\0'; 92 return (buf); 93 } 94 95 static char * 96 cmdpart(arg0) 97 char *arg0; 98 { 99 char *cp; 100 101 return ((cp = strrchr(arg0, '/')) != NULL ? cp + 1 : arg0); 102 } 103 104 char * 105 fmt_argv(argv, cmd, maxlen) 106 char **argv; 107 char *cmd; 108 int maxlen; 109 { 110 int len; 111 char *ap, *cp; 112 113 if (argv == 0 || argv[0] == 0) { 114 if (cmd == NULL) 115 return (""); 116 ap = NULL; 117 len = maxlen + 3; 118 } else { 119 ap = shquote(argv); 120 len = strlen(ap) + maxlen + 4; 121 } 122 if ((cp = malloc(len)) == NULL) 123 return (NULL); 124 if (ap == NULL) 125 sprintf(cp, " (%.*s)", maxlen, cmd); 126 else if (strncmp(cmdpart(argv[0]), cmd, maxlen) != 0) 127 sprintf(cp, "%s (%.*s)", ap, maxlen, cmd); 128 else 129 (void) strcpy(cp, ap); 130 return (cp); 131 } 132