diff options
Diffstat (limited to 'lib/libform/fld_arg.c')
| -rw-r--r-- | lib/libform/fld_arg.c | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/lib/libform/fld_arg.c b/lib/libform/fld_arg.c new file mode 100644 index 00000000000..7b1bb6df06e --- /dev/null +++ b/lib/libform/fld_arg.c @@ -0,0 +1,83 @@ +/* $OpenBSD: fld_arg.c,v 1.1 1997/12/03 05:39:50 millert Exp $ */ + +/*-----------------------------------------------------------------------------+ +| The ncurses form library is Copyright (C) 1995-1997 | +| by Juergen Pfeifer <Juergen.Pfeifer@T-Online.de> | +| All Rights Reserved. | +| | +| Permission to use, copy, modify, and distribute this software and its | +| documentation for any purpose and without fee is hereby granted, provided | +| that the above copyright notice appear in all copies and that both that | +| copyright notice and this permission notice appear in supporting | +| documentation, and that the name of the above listed copyright holder(s) not | +| be used in advertising or publicity pertaining to distribution of the | +| software without specific, written prior permission. | +| | +| THE ABOVE LISTED COPYRIGHT HOLDER(S) DISCLAIM ALL WARRANTIES WITH REGARD TO | +| THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FIT- | +| NESS, IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT HOLDER(S) BE LIABLE FOR | +| ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RE- | +| SULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, | +| NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH | +| THE USE OR PERFORMANCE OF THIS SOFTWARE. | ++-----------------------------------------------------------------------------*/ + +#include "form.priv.h" + +MODULE_ID("Id: fld_arg.c,v 1.1 1997/10/21 13:24:19 juergen Exp $") + +/*--------------------------------------------------------------------------- +| Facility : libnform +| Function : int set_fieldtype_arg( +| FIELDTYPE *typ, +| void * (* const make_arg)(va_list *), +| void * (* const copy_arg)(const void *), +| void (* const free_arg)(void *) ) +| +| Description : Connects to the type additional arguments necessary +| for a set_field_type call. The various function pointer +| arguments are: +| make_arg : allocates a structure for the field +| specific parameters. +| copy_arg : duplicate the structure created by +| make_arg +| free_arg : Release the memory allocated by make_arg +| or copy_arg +| +| At least make_arg must be non-NULL. +| You may pass NULL for copy_arg and free_arg if your +| make_arg function doesn't allocate memory and your +| arg fits into the storage for a (void*). +| +| Return Values : E_OK - success +| E_BAD_ARGUMENT - invalid argument ++--------------------------------------------------------------------------*/ +int set_fieldtype_arg(FIELDTYPE * typ, + void * (* const make_arg)(va_list *), + void * (* const copy_arg)(const void *), + void (* const free_arg)(void *)) +{ + if ( !typ || !make_arg ) + RETURN(E_BAD_ARGUMENT); + + typ->status |= _HAS_ARGS; + typ->makearg = make_arg; + typ->copyarg = copy_arg; + typ->freearg = free_arg; + RETURN(E_OK); +} + +/*--------------------------------------------------------------------------- +| Facility : libnform +| Function : void *field_arg(const FIELD *field) +| +| Description : Retrieve pointer to the fields argument structure. +| +| Return Values : Pointer to structure or NULL if none is defined. ++--------------------------------------------------------------------------*/ +void *field_arg(const FIELD * field) +{ + return Normalize_Field(field)->arg; +} + +/* fld_arg.c ends here */ |