xref: /illumos-gate/usr/src/cmd/lp/lib/lp/appendlist.c (revision 7c478bd9)
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 "string.h"
30 #include "errno.h"
31 #include "sys/types.h"
32 #include "stdlib.h"
33 
34 #include "lp.h"
35 
36 /**
37  ** appendlist() - ADD ITEM TO (char **) LIST
38  **/
39 
40 int
41 #if	defined(__STDC__)
appendlist(char *** plist,char * item)42 appendlist (
43 	char ***		plist,
44 	char *			item
45 )
46 #else
47 appendlist (plist, item)
48 	register char		***plist,
49 				*item;
50 #endif
51 {
52 	register int		n;
53 
54 	if (*plist) {
55 
56 		n = lenlist(*plist);
57 
58 		n++;
59 		*plist = (char **)Realloc(
60 			(char *)*plist,
61 			(n + 1) * sizeof(char *)
62 		);
63 		if (!*plist) {
64 			errno = ENOMEM;
65 			return (-1);
66 		}
67 		(*plist)[n - 1] = Strdup(item);
68 		(*plist)[n] = 0;
69 
70 	} else {
71 
72 		*plist = (char **)Malloc(2 * sizeof(char *));
73 		if (!*plist) {
74 			errno = ENOMEM;
75 			return (-1);
76 		}
77 		(*plist)[0] = Strdup(item);
78 		(*plist)[1] = 0;
79 
80 	}
81 
82 	return (0);
83 }
84