1 /* $OpenBSD: fld_ftlink.c,v 1.7 2023/10/17 09:52:10 nicm Exp $ */
2 /****************************************************************************
3 * Copyright 2020,2021 Thomas E. Dickey *
4 * Copyright 1998-2010,2012 Free Software Foundation, Inc. *
5 * *
6 * Permission is hereby granted, free of charge, to any person obtaining a *
7 * copy of this software and associated documentation files (the *
8 * "Software"), to deal in the Software without restriction, including *
9 * without limitation the rights to use, copy, modify, merge, publish, *
10 * distribute, distribute with modifications, sublicense, and/or sell *
11 * copies of the Software, and to permit persons to whom the Software is *
12 * furnished to do so, subject to the following conditions: *
13 * *
14 * The above copyright notice and this permission notice shall be included *
15 * in all copies or substantial portions of the Software. *
16 * *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
20 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
21 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
22 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
23 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
24 * *
25 * Except as contained in this notice, the name(s) of the above copyright *
26 * holders shall not be used in advertising or otherwise to promote the *
27 * sale, use or other dealings in this Software without prior written *
28 * authorization. *
29 ****************************************************************************/
30
31 /****************************************************************************
32 * Author: Juergen Pfeifer, 1995,1997 *
33 ****************************************************************************/
34
35 #include "form.priv.h"
36
37 MODULE_ID("$Id: fld_ftlink.c,v 1.7 2023/10/17 09:52:10 nicm Exp $")
38
39 /*---------------------------------------------------------------------------
40 | Facility : libnform
41 | Function : FIELDTYPE *link_fieldtype(
42 | FIELDTYPE *type1,
43 | FIELDTYPE *type2)
44 |
45 | Description : Create a new fieldtype built from the two given types.
46 | They are connected by an logical 'OR'.
47 | If an error occurs, errno is set to
48 | E_BAD_ARGUMENT - invalid arguments
49 | E_SYSTEM_ERROR - system error (no memory)
50 |
51 | Return Values : Fieldtype pointer or NULL if error occurred.
52 +--------------------------------------------------------------------------*/
FORM_EXPORT(FIELDTYPE *)53 FORM_EXPORT(FIELDTYPE *)
54 link_fieldtype(FIELDTYPE *type1, FIELDTYPE *type2)
55 {
56 FIELDTYPE *nftyp = (FIELDTYPE *)0;
57
58 T((T_CALLED("link_fieldtype(%p,%p)"), (void *)type1, (void *)type2));
59 if (type1 && type2)
60 {
61 nftyp = typeMalloc(FIELDTYPE, 1);
62
63 if (nftyp)
64 {
65 T((T_CREATE("fieldtype %p"), (void *)nftyp));
66 *nftyp = *_nc_Default_FieldType;
67 SetStatus(nftyp, _LINKED_TYPE);
68 if ((type1->status & _HAS_ARGS) || (type2->status & _HAS_ARGS))
69 SetStatus(nftyp, _HAS_ARGS);
70 if ((type1->status & _HAS_CHOICE) || (type2->status & _HAS_CHOICE))
71 SetStatus(nftyp, _HAS_CHOICE);
72 nftyp->left = type1;
73 nftyp->right = type2;
74 type1->ref++;
75 type2->ref++;
76 }
77 else
78 {
79 SET_ERROR(E_SYSTEM_ERROR);
80 }
81 }
82 else
83 {
84 SET_ERROR(E_BAD_ARGUMENT);
85 }
86 returnFieldType(nftyp);
87 }
88
89 /* fld_ftlink.c ends here */
90