1 /****************************************************************************
2 * Copyright 2020,2021 Thomas E. Dickey *
3 * Copyright 1998-2004,2010 Free Software Foundation, Inc. *
4 * *
5 * Permission is hereby granted, free of charge, to any person obtaining a *
6 * copy of this software and associated documentation files (the *
7 * "Software"), to deal in the Software without restriction, including *
8 * without limitation the rights to use, copy, modify, merge, publish, *
9 * distribute, distribute with modifications, sublicense, and/or sell *
10 * copies of the Software, and to permit persons to whom the Software is *
11 * furnished to do so, subject to the following conditions: *
12 * *
13 * The above copyright notice and this permission notice shall be included *
14 * in all copies or substantial portions of the Software. *
15 * *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
19 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
20 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
21 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
22 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
23 * *
24 * Except as contained in this notice, the name(s) of the above copyright *
25 * holders shall not be used in advertising or otherwise to promote the *
26 * sale, use or other dealings in this Software without prior written *
27 * authorization. *
28 ****************************************************************************/
29
30 /****************************************************************************
31 * Author: Juergen Pfeifer, 1995,1997 *
32 ****************************************************************************/
33
34 #include "form.priv.h"
35
36 MODULE_ID("$Id: fld_type.c,v 1.20 2021/06/17 21:20:30 tom Exp $")
37
38 /*---------------------------------------------------------------------------
39 | Facility : libnform
40 | Function : int set_field_type(FIELD *field, FIELDTYPE *type,...)
41 |
42 | Description : Associate the specified fieldtype with the field.
43 | Certain field types take additional arguments. Look
44 | at the spec of the field types !
45 |
46 | Return Values : E_OK - success
47 | E_SYSTEM_ERROR - system error
48 +--------------------------------------------------------------------------*/
FORM_EXPORT(int)49 FORM_EXPORT(int)
50 set_field_type(FIELD *field, FIELDTYPE *type, ...)
51 {
52 va_list ap;
53 int res = E_SYSTEM_ERROR;
54 int err = 0;
55
56 T((T_CALLED("set_field_type(%p,%p)"), (void *)field, (void *)type));
57
58 va_start(ap, type);
59
60 Normalize_Field(field);
61 _nc_Free_Type(field);
62
63 field->type = type;
64 field->arg = (void *)_nc_Make_Argument(field->type, &ap, &err);
65
66 if (err)
67 {
68 _nc_Free_Argument(field->type, (TypeArgument *)(field->arg));
69 field->type = (FIELDTYPE *)0;
70 field->arg = (void *)0;
71 }
72 else
73 {
74 res = E_OK;
75 if (field->type)
76 field->type->ref++;
77 }
78
79 va_end(ap);
80 RETURN(res);
81 }
82
83 /*---------------------------------------------------------------------------
84 | Facility : libnform
85 | Function : FIELDTYPE *field_type(const FIELD *field)
86 |
87 | Description : Retrieve the associated fieldtype for this field.
88 |
89 | Return Values : Pointer to fieldtype of NULL if none is defined.
90 +--------------------------------------------------------------------------*/
91 FORM_EXPORT(FIELDTYPE *)
field_type(const FIELD * field)92 field_type(const FIELD *field)
93 {
94 T((T_CALLED("field_type(%p)"), (const void *)field));
95 returnFieldType(Normalize_Field(field)->type);
96 }
97
98 /* fld_type.c ends here */
99