xref: /illumos-gate/usr/src/cmd/lp/lib/lp/sprintlist.c (revision 10d63b7db37a83b39c7f511cf9426c9d03ea0760)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
23 /*	  All Rights Reserved  	*/
24 
25 
26 #ident	"%Z%%M%	%I%	%E% SMI"	/* SVr4.0 1.7	*/
27 /* EMACS_MODES: !fill, lnumb, !overwrite, !nodelete, !picture */
28 
29 #include "stdio.h"
30 #include "errno.h"
31 #include "string.h"
32 #include "stdlib.h"
33 
34 #include "lp.h"
35 
36 /**
37  ** sprintlist() - FLATTEN (char **) LIST INTO (char *) LIST
38  **/
39 
40 char *
41 #if	defined(__STDC__)
42 sprintlist (
43 	char **			list
44 )
45 #else
46 sprintlist (list)
47 	char			**list;
48 #endif
49 {
50 	register char		**plist,
51 				*p,
52 				*q;
53 
54 	char			*ret;
55 
56 	int			len	= 0;
57 
58 
59 	if (!list || !*list)
60 		return (0);
61 
62 	for (plist = list; *plist; plist++)
63 		len += strlen(*plist) + 1;
64 
65 	if (!(ret = Malloc(len))) {
66 		errno = ENOMEM;
67 		return (0);
68 	}
69 
70 	q = ret;
71 	for (plist = list; *plist; plist++) {
72 		p = *plist;
73 		while (*q++ = *p++)
74 			;
75 		q[-1] = ' ';
76 	}
77 	q[-1] = 0;
78 
79 	return (ret);
80 }
81