xref: /illumos-gate/usr/src/cmd/lp/lib/lp/duplist.c (revision 55fea89d)
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 1.8	*/
27 /* EMACS_MODES: !fill, lnumb, !overwrite, !nodelete, !picture */
28 
29 #include "errno.h"
30 #include "string.h"
31 #include "stdlib.h"
32 
33 #include "lp.h"
34 
35 /**
36  ** duplist() - DUPLICATE A LIST OF STRINGS
37  **/
38 
39 char **
40 #if	defined(__STDC__)
duplist(char ** src)41 duplist (
42 	char **			src
43 )
44 #else
45 duplist (src)
46 	register char		**src;
47 #endif
48 {
49 	register char		**dst;
50 
51 	register int		nitems,
52 				n;
53 
54 	if (!src || !*src)
55 		return (0);
56 
57 	nitems = lenlist(src);
58 	if (!(dst = (char **)Malloc((nitems + 1) * sizeof(char *)))) {
59 		errno = ENOMEM;
60 		return (0);
61 	}
62 
63 	for (n = 0; n < nitems; n++)
64 		if (!(dst[n] = Strdup(src[n]))) {
65 			while (n--)
66 				Free (dst[n]);
67 			Free ((char *)dst);
68 			errno = ENOMEM;
69 			return (0);
70 		}
71 	dst[nitems] = 0;
72 
73 	return (dst);
74 }
75 
76