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 +--------------------------------------------------------------------------*/ 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