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/* $OpenBSD: fld_arg.c,v 1.6 2015/01/23 22:48:51 krw Exp $ */ |
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/**************************************************************************** |
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* Copyright (c) 1998-2003,2004 Free Software Foundation, Inc. * |
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* * |
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* Permission is hereby granted, free of charge, to any person obtaining a * |
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* copy of this software and associated documentation files (the * |
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* "Software"), to deal in the Software without restriction, including * |
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* without limitation the rights to use, copy, modify, merge, publish, * |
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* distribute, distribute with modifications, sublicense, and/or sell * |
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* copies of the Software, and to permit persons to whom the Software is * |
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* furnished to do so, subject to the following conditions: * |
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* * |
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* The above copyright notice and this permission notice shall be included * |
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* in all copies or substantial portions of the Software. * |
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* * |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * |
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * |
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * |
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* IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * |
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * |
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * |
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* THE USE OR OTHER DEALINGS IN THE SOFTWARE. * |
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* * |
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* Except as contained in this notice, the name(s) of the above copyright * |
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* holders shall not be used in advertising or otherwise to promote the * |
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* sale, use or other dealings in this Software without prior written * |
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* authorization. * |
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****************************************************************************/ |
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/**************************************************************************** |
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* Author: Juergen Pfeifer, 1995,1997 * |
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****************************************************************************/ |
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#include "form.priv.h" |
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MODULE_ID("$Id: fld_arg.c,v 1.6 2015/01/23 22:48:51 krw Exp $") |
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/*--------------------------------------------------------------------------- |
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| Facility : libnform |
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| Function : int set_fieldtype_arg( |
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| FIELDTYPE *typ, |
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| void * (* const make_arg)(va_list *), |
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| void * (* const copy_arg)(const void *), |
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| void (* const free_arg)(void *) ) |
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| |
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| Description : Connects to the type additional arguments necessary |
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| for a set_field_type call. The various function pointer |
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| arguments are: |
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| make_arg : allocates a structure for the field |
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| specific parameters. |
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| copy_arg : duplicate the structure created by |
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| make_arg |
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| free_arg : Release the memory allocated by make_arg |
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| or copy_arg |
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| |
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| At least make_arg must be non-NULL. |
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| You may pass NULL for copy_arg and free_arg if your |
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| make_arg function doesn't allocate memory and your |
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| arg fits into the storage for a (void*). |
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| |
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| Return Values : E_OK - success |
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| E_BAD_ARGUMENT - invalid argument |
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+--------------------------------------------------------------------------*/ |
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NCURSES_EXPORT(int) |
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set_fieldtype_arg(FIELDTYPE *typ, |
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void *(*const make_arg)(va_list *), |
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void *(*const copy_arg)(const void *), |
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void (*const free_arg) (void *)) |
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{ |
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T((T_CALLED("set_fieldtype_arg(%p,%p,%p,%p)"), |
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typ, make_arg, copy_arg, free_arg)); |
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if (typ != 0 && make_arg != (void *)0) |
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{ |
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typ->status |= _HAS_ARGS; |
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typ->makearg = make_arg; |
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typ->copyarg = copy_arg; |
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typ->freearg = free_arg; |
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RETURN(E_OK); |
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} |
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RETURN(E_BAD_ARGUMENT); |
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} |
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/*--------------------------------------------------------------------------- |
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| Facility : libnform |
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| Function : void *field_arg(const FIELD *field) |
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| Description : Retrieve pointer to the fields argument structure. |
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| Return Values : Pointer to structure or NULL if none is defined. |
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+--------------------------------------------------------------------------*/ |
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NCURSES_EXPORT(void *) |
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field_arg(const FIELD *field) |
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{ |
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T((T_CALLED("field_arg(%p)"), field)); |
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returnVoidPtr(Normalize_Field(field)->arg); |
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} |
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/* fld_arg.c ends here */ |