xref: /freebsd/bin/ps/fmt.c (revision c7bca09356774cbd72e4da0247bac1cb49f21e8a)
14b88c807SRodney W. Grimes /*-
24b88c807SRodney W. Grimes  * Copyright (c) 1992, 1993, 1994
34b88c807SRodney W. Grimes  *	The Regents of the University of California.  All rights reserved.
44b88c807SRodney W. Grimes  *
54b88c807SRodney W. Grimes  * Redistribution and use in source and binary forms, with or without
64b88c807SRodney W. Grimes  * modification, are permitted provided that the following conditions
74b88c807SRodney W. Grimes  * are met:
84b88c807SRodney W. Grimes  * 1. Redistributions of source code must retain the above copyright
94b88c807SRodney W. Grimes  *    notice, this list of conditions and the following disclaimer.
104b88c807SRodney W. Grimes  * 2. Redistributions in binary form must reproduce the above copyright
114b88c807SRodney W. Grimes  *    notice, this list of conditions and the following disclaimer in the
124b88c807SRodney W. Grimes  *    documentation and/or other materials provided with the distribution.
134b88c807SRodney W. Grimes  * 3. All advertising materials mentioning features or use of this software
144b88c807SRodney W. Grimes  *    must display the following acknowledgement:
154b88c807SRodney W. Grimes  *	This product includes software developed by the University of
164b88c807SRodney W. Grimes  *	California, Berkeley and its contributors.
174b88c807SRodney W. Grimes  * 4. Neither the name of the University nor the names of its contributors
184b88c807SRodney W. Grimes  *    may be used to endorse or promote products derived from this software
194b88c807SRodney W. Grimes  *    without specific prior written permission.
204b88c807SRodney W. Grimes  *
214b88c807SRodney W. Grimes  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
224b88c807SRodney W. Grimes  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
234b88c807SRodney W. Grimes  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
244b88c807SRodney W. Grimes  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
254b88c807SRodney W. Grimes  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
264b88c807SRodney W. Grimes  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
274b88c807SRodney W. Grimes  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
284b88c807SRodney W. Grimes  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
294b88c807SRodney W. Grimes  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
304b88c807SRodney W. Grimes  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
314b88c807SRodney W. Grimes  * SUCH DAMAGE.
324b88c807SRodney W. Grimes  */
334b88c807SRodney W. Grimes 
344b88c807SRodney W. Grimes #ifndef lint
35c9a8d1f4SPhilippe Charnier #if 0
36c9a8d1f4SPhilippe Charnier static char sccsid[] = "@(#)fmt.c	8.4 (Berkeley) 4/15/94";
37c9a8d1f4SPhilippe Charnier #endif
38c9a8d1f4SPhilippe Charnier static const char rcsid[] =
39c7bca093SJoseph Koshy 	"$Id: fmt.c,v 1.11 1998/05/15 06:29:15 charnier Exp $";
404b88c807SRodney W. Grimes #endif /* not lint */
414b88c807SRodney W. Grimes 
424b88c807SRodney W. Grimes #include <sys/param.h>
43fa49dc9cSAndreas Schulz #include <sys/syslimits.h>
444b88c807SRodney W. Grimes #include <sys/time.h>
454b88c807SRodney W. Grimes #include <sys/resource.h>
464b88c807SRodney W. Grimes #include <stdio.h>
474b88c807SRodney W. Grimes #include <stdlib.h>
484b88c807SRodney W. Grimes #include <string.h>
49c7bca093SJoseph Koshy #include <unistd.h>
504b88c807SRodney W. Grimes #include <vis.h>
514b88c807SRodney W. Grimes #include "ps.h"
524b88c807SRodney W. Grimes 
534b88c807SRodney W. Grimes static char *cmdpart __P((char *));
544b88c807SRodney W. Grimes static char *shquote __P((char **));
554b88c807SRodney W. Grimes 
564b88c807SRodney W. Grimes /*
574b88c807SRodney W. Grimes  * XXX
584b88c807SRodney W. Grimes  * This is a stub until marc does the real one.
594b88c807SRodney W. Grimes  */
604b88c807SRodney W. Grimes static char *
614b88c807SRodney W. Grimes shquote(argv)
624b88c807SRodney W. Grimes 	char **argv;
634b88c807SRodney W. Grimes {
64c7bca093SJoseph Koshy 	long arg_max;
654b88c807SRodney W. Grimes 	char **p, *dst, *src;
66c7bca093SJoseph Koshy 	static char *buf = NULL;
67c7bca093SJoseph Koshy 
68c7bca093SJoseph Koshy 	if (buf == NULL) {
69c7bca093SJoseph Koshy 		if ((arg_max = sysconf(_SC_ARG_MAX)) == -1)
70c7bca093SJoseph Koshy 			errx(1, "sysconf _SC_ARG_MAX failed");
71c7bca093SJoseph Koshy 		if ((buf = malloc((4 * arg_max)  +  1)) == NULL)
72c7bca093SJoseph Koshy 			errx(1, "malloc failed");
73c7bca093SJoseph Koshy 	}
744b88c807SRodney W. Grimes 
754b88c807SRodney W. Grimes 	if (*argv == 0) {
764b88c807SRodney W. Grimes 		buf[0] = 0;
774b88c807SRodney W. Grimes 		return (buf);
784b88c807SRodney W. Grimes 	}
794b88c807SRodney W. Grimes 	dst = buf;
804b88c807SRodney W. Grimes 	for (p = argv; (src = *p++) != 0; ) {
814b88c807SRodney W. Grimes 		if (*src == 0)
824b88c807SRodney W. Grimes 			continue;
834b88c807SRodney W. Grimes 		strvis(dst, src, VIS_NL | VIS_CSTYLE);
844b88c807SRodney W. Grimes 		while (*dst)
854b88c807SRodney W. Grimes 			dst++;
864b88c807SRodney W. Grimes 		*dst++ = ' ';
874b88c807SRodney W. Grimes 	}
88632f53ddSDavid Greenman 	/* Chop off trailing space */
89632f53ddSDavid Greenman 	if (dst != buf)
90632f53ddSDavid Greenman 		dst--;
914b88c807SRodney W. Grimes 	*dst = '\0';
924b88c807SRodney W. Grimes 	return (buf);
934b88c807SRodney W. Grimes }
944b88c807SRodney W. Grimes 
954b88c807SRodney W. Grimes static char *
964b88c807SRodney W. Grimes cmdpart(arg0)
974b88c807SRodney W. Grimes 	char *arg0;
984b88c807SRodney W. Grimes {
994b88c807SRodney W. Grimes 	char *cp;
1004b88c807SRodney W. Grimes 
1014b88c807SRodney W. Grimes 	return ((cp = strrchr(arg0, '/')) != NULL ? cp + 1 : arg0);
1024b88c807SRodney W. Grimes }
1034b88c807SRodney W. Grimes 
1044b88c807SRodney W. Grimes char *
1054b88c807SRodney W. Grimes fmt_argv(argv, cmd, maxlen)
1064b88c807SRodney W. Grimes 	char **argv;
1074b88c807SRodney W. Grimes 	char *cmd;
1084b88c807SRodney W. Grimes 	int maxlen;
1094b88c807SRodney W. Grimes {
1104b88c807SRodney W. Grimes 	int len;
1114b88c807SRodney W. Grimes 	char *ap, *cp;
1124b88c807SRodney W. Grimes 
1134b88c807SRodney W. Grimes 	if (argv == 0 || argv[0] == 0) {
1144b88c807SRodney W. Grimes 		if (cmd == NULL)
1154b88c807SRodney W. Grimes 			return ("");
1164b88c807SRodney W. Grimes 		ap = NULL;
1174b88c807SRodney W. Grimes 		len = maxlen + 3;
1184b88c807SRodney W. Grimes 	} else {
1194b88c807SRodney W. Grimes 		ap = shquote(argv);
1204b88c807SRodney W. Grimes 		len = strlen(ap) + maxlen + 4;
1214b88c807SRodney W. Grimes 	}
1224b88c807SRodney W. Grimes 	if ((cp = malloc(len)) == NULL)
1234b88c807SRodney W. Grimes 		return (NULL);
1244b88c807SRodney W. Grimes 	if (ap == NULL)
1254b88c807SRodney W. Grimes 		sprintf(cp, " (%.*s)", maxlen, cmd);
1264b88c807SRodney W. Grimes 	else if (strncmp(cmdpart(argv[0]), cmd, maxlen) != 0)
1274b88c807SRodney W. Grimes 		sprintf(cp, "%s (%.*s)", ap, maxlen, cmd);
1284b88c807SRodney W. Grimes 	else
1294b88c807SRodney W. Grimes 		(void) strcpy(cp, ap);
1304b88c807SRodney W. Grimes 	return (cp);
1314b88c807SRodney W. Grimes }
132