1/* $OpenBSD: fld_link.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 37MODULE_ID("$Id: fld_link.c,v 1.7 2023/10/17 09:52:10 nicm Exp $") 38 39/*--------------------------------------------------------------------------- 40| Facility : libnform 41| Function : FIELD *link_field(FIELD *field, int frow, int fcol) 42| 43| Description : Duplicates the field at the specified position. The 44| new field shares its buffers with the original one, 45| the attributes are independent. 46| If an error occurs, errno is set to 47| 48| E_BAD_ARGUMENT - invalid argument 49| E_SYSTEM_ERROR - system error 50| 51| Return Values : Pointer to the new field or NULL if failure 52+--------------------------------------------------------------------------*/ 53FORM_EXPORT(FIELD *) 54link_field(FIELD *field, int frow, int fcol) 55{ 56 FIELD *New_Field = (FIELD *)0; 57 int err = E_BAD_ARGUMENT; 58 59 T((T_CALLED("link_field(%p,%d,%d)"), (void *)field, frow, fcol)); 60 if (field && (frow >= 0) && (fcol >= 0) && 61 ((err = E_SYSTEM_ERROR) != 0) && /* trick: this resets the default error */ 62 (New_Field = typeMalloc(FIELD, 1))) 63 { 64 T((T_CREATE("field %p"), (void *)New_Field)); 65 *New_Field = *_nc_Default_Field; 66 New_Field->frow = (short)frow; 67 New_Field->fcol = (short)fcol; 68 69 New_Field->link = field->link; 70 field->link = New_Field; 71 72 New_Field->buf = field->buf; 73 New_Field->rows = field->rows; 74 New_Field->cols = field->cols; 75 New_Field->nrow = field->nrow; 76 New_Field->nbuf = field->nbuf; 77 New_Field->drows = field->drows; 78 New_Field->dcols = field->dcols; 79 New_Field->maxgrow = field->maxgrow; 80 New_Field->just = field->just; 81 New_Field->fore = field->fore; 82 New_Field->back = field->back; 83 New_Field->pad = field->pad; 84 New_Field->opts = field->opts; 85 New_Field->usrptr = field->usrptr; 86 87 if (_nc_Copy_Type(New_Field, field)) 88 returnField(New_Field); 89 } 90 91 if (New_Field) 92 free_field(New_Field); 93 94 SET_ERROR(err); 95 returnField((FIELD *)0); 96} 97 98/* fld_link.c ends here */ 99