1 /* $OpenBSD: fld_ftlink.c,v 1.4 2001/01/22 18:02:12 millert Exp $ */ 2 3 /**************************************************************************** 4 * Copyright (c) 1998,2000 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 <juergen.pfeifer@gmx.net> 1995,1997 * 33 ****************************************************************************/ 34 35 #include "form.priv.h" 36 37 MODULE_ID("$From: fld_ftlink.c,v 1.5 2000/12/10 02:09:38 tom 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 occured. 52 +--------------------------------------------------------------------------*/ 53 NCURSES_EXPORT(FIELDTYPE *) 54 link_fieldtype 55 (FIELDTYPE * type1, FIELDTYPE * type2) 56 { 57 FIELDTYPE *nftyp = (FIELDTYPE *)0; 58 59 if ( type1 && type2 ) 60 { 61 nftyp = (FIELDTYPE *)malloc(sizeof(FIELDTYPE)); 62 if (nftyp) 63 { 64 *nftyp = *_nc_Default_FieldType; 65 nftyp->status |= _LINKED_TYPE; 66 if ((type1->status & _HAS_ARGS) || (type2->status & _HAS_ARGS) ) 67 nftyp->status |= _HAS_ARGS; 68 if ((type1->status & _HAS_CHOICE) || (type2->status & _HAS_CHOICE) ) 69 nftyp->status |= _HAS_CHOICE; 70 nftyp->left = type1; 71 nftyp->right = type2; 72 type1->ref++; 73 type2->ref++; 74 } 75 else 76 { 77 SET_ERROR( E_SYSTEM_ERROR ); 78 } 79 } 80 else 81 { 82 SET_ERROR( E_BAD_ARGUMENT ); 83 } 84 return nftyp; 85 } 86 87 /* fld_ftlink.c ends here */ 88