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fmt.c revision 1.7 
      1 /*	$NetBSD: fmt.c,v 1.7 1995/05/18 15:35:59 mycroft Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1992, 1993, 1994
      5  *	The Regents of the University of California.  All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *	This product includes software developed by the University of
     18  *	California, Berkeley and its contributors.
     19  * 4. Neither the name of the University nor the names of its contributors
     20  *    may be used to endorse or promote products derived from this software
     21  *    without specific prior written permission.
     22  *
     23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     33  * SUCH DAMAGE.
     34  */
     35 
     36 #ifndef lint
     37 #if 0
     38 static char sccsid[] = "@(#)fmt.c	8.4 (Berkeley) 4/15/94";
     39 #else
     40 static char rcsid[] = "$NetBSD: fmt.c,v 1.7 1995/05/18 15:35:59 mycroft Exp $";
     41 #endif
     42 #endif /* not lint */
     43 
     44 #include <sys/param.h>
     45 #include <sys/time.h>
     46 #include <sys/resource.h>
     47 #include <ctype.h>
     48 #include <stdio.h>
     49 #include <stdlib.h>
     50 #include <string.h>
     51 #include <vis.h>
     52 #include "ps.h"
     53 
     54 static char *cmdpart __P((char *));
     55 static char *shquote __P((char **));
     56 
     57 /*
     58  * XXX
     59  * This is a stub until marc does the real one.
     60  */
     61 static char *
     62 shquote(argv)
     63 	char **argv;
     64 {
     65 	char **p, *dst, *src;
     66 	static char buf[4096];		/* XXX */
     67 
     68 	if (*argv == 0) {
     69 		buf[0] = 0;
     70 		return (buf);
     71 	}
     72 	dst = buf;
     73 	for (p = argv; (src = *p++) != 0; ) {
     74 		if (*src == 0)
     75 			continue;
     76 		strvis(dst, src, VIS_TAB | VIS_NL | VIS_CSTYLE);
     77 		dst += strlen(dst);
     78 		*dst++ = ' ';
     79 	}
     80 	*dst = '\0';
     81 	return (buf);
     82 }
     83 
     84 static char *
     85 cmdpart(arg0)
     86 	char *arg0;
     87 {
     88 	char *cp;
     89 
     90 	return ((cp = strrchr(arg0, '/')) != NULL ? cp + 1 : arg0);
     91 }
     92 
     93 char *
     94 fmt_argv(argv, cmd, maxlen)
     95 	char **argv;
     96 	char *cmd;
     97 	int maxlen;
     98 {
     99 	int len;
    100 	char *ap, *cp;
    101 
    102 	if (argv == 0 || argv[0] == 0)
    103 		ap = "";
    104 	else
    105 		ap = shquote(argv);
    106 	len = strlen(ap);
    107 	if ((cp = malloc(len + maxlen + 3)) == NULL)
    108 		return (NULL);
    109 	if (cmd &&
    110 	    (ap[0] == '\0' || strncmp(cmdpart(argv[0]), cmd, maxlen) != 0))
    111 		sprintf(cp, "%s(%.*s)", ap, maxlen, cmd);
    112 	else {
    113 		bcopy(ap, cp, len);
    114 		cp[len - 1] = '\0';
    115 	}
    116 	return (cp);
    117 }
    118