diff options
Diffstat (limited to 'payloads/libpayload/curses/form/fld_newftyp.c')
-rw-r--r-- | payloads/libpayload/curses/form/fld_newftyp.c | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/payloads/libpayload/curses/form/fld_newftyp.c b/payloads/libpayload/curses/form/fld_newftyp.c new file mode 100644 index 0000000000..4351aed6b3 --- /dev/null +++ b/payloads/libpayload/curses/form/fld_newftyp.c @@ -0,0 +1,143 @@ +/**************************************************************************** + * Copyright (c) 1998-2009,2010 Free Software Foundation, Inc. * + * * + * Permission is hereby granted, free of charge, to any person obtaining a * + * copy of this software and associated documentation files (the * + * "Software"), to deal in the Software without restriction, including * + * without limitation the rights to use, copy, modify, merge, publish, * + * distribute, distribute with modifications, sublicense, and/or sell * + * copies of the Software, and to permit persons to whom the Software is * + * furnished to do so, subject to the following conditions: * + * * + * The above copyright notice and this permission notice shall be included * + * in all copies or substantial portions of the Software. * + * * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * + * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * + * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * + * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * + * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * + * * + * Except as contained in this notice, the name(s) of the above copyright * + * holders shall not be used in advertising or otherwise to promote the * + * sale, use or other dealings in this Software without prior written * + * authorization. * + ****************************************************************************/ + +/**************************************************************************** + * Author: Juergen Pfeifer, 1995,1997 * + ****************************************************************************/ + +#include "form.priv.h" + +MODULE_ID("$Id: fld_newftyp.c,v 1.19 2010/01/23 21:14:36 tom Exp $") + +static FIELDTYPE default_fieldtype = +{ + 0, /* status */ + 0L, /* reference count */ + (FIELDTYPE *)0, /* pointer to left operand */ + (FIELDTYPE *)0, /* pointer to right operand */ + NULL, /* makearg function */ + NULL, /* copyarg function */ + NULL, /* freearg function */ + INIT_FT_FUNC(NULL), /* field validation function */ + INIT_FT_FUNC(NULL), /* Character check function */ + INIT_FT_FUNC(NULL), /* enumerate next function */ + INIT_FT_FUNC(NULL), /* enumerate previous function */ +#if NCURSES_INTEROP_FUNCS + NULL /* generic callback alternative to makearg */ +#endif +}; + +NCURSES_EXPORT_VAR(FIELDTYPE *) +_nc_Default_FieldType = &default_fieldtype; + +/*--------------------------------------------------------------------------- +| Facility : libnform +| Function : FIELDTYPE *new_fieldtype( +| bool (* const field_check)(FIELD *,const void *), +| bool (* const char_check) (int, const void *) ) +| +| Description : Create a new fieldtype. The application programmer must +| write a field_check and a char_check function and give +| them as input to this call. +| If an error occurs, errno is set to +| E_BAD_ARGUMENT - invalid arguments +| E_SYSTEM_ERROR - system error (no memory) +| +| Return Values : Fieldtype pointer or NULL if error occurred ++--------------------------------------------------------------------------*/ +NCURSES_EXPORT(FIELDTYPE *) +new_fieldtype(bool (*const field_check) (FIELD *, const void *), + bool (*const char_check) (int, const void *)) +{ + FIELDTYPE *nftyp = (FIELDTYPE *)0; + + T((T_CALLED("new_fieldtype(%p,%p)"), field_check, char_check)); + if ((field_check) || (char_check)) + { + nftyp = typeMalloc(FIELDTYPE, 1); + + if (nftyp) + { + T((T_CREATE("fieldtype %p"), (void *)nftyp)); + *nftyp = default_fieldtype; +#if NCURSES_INTEROP_FUNCS + nftyp->fieldcheck.ofcheck = field_check; + nftyp->charcheck.occheck = char_check; +#else + nftyp->fcheck = field_check; + nftyp->ccheck = char_check; +#endif + } + else + { + SET_ERROR(E_SYSTEM_ERROR); + } + } + else + { + SET_ERROR(E_BAD_ARGUMENT); + } + returnFieldType(nftyp); +} + +/*--------------------------------------------------------------------------- +| Facility : libnform +| Function : int free_fieldtype(FIELDTYPE *typ) +| +| Description : Release the memory associated with this fieldtype. +| +| Return Values : E_OK - success +| E_CONNECTED - there are fields referencing the type +| E_BAD_ARGUMENT - invalid fieldtype pointer ++--------------------------------------------------------------------------*/ +NCURSES_EXPORT(int) +free_fieldtype(FIELDTYPE *typ) +{ + T((T_CALLED("free_fieldtype(%p)"), (void *)typ)); + + if (!typ) + RETURN(E_BAD_ARGUMENT); + + if (typ->ref != 0) + RETURN(E_CONNECTED); + + if (typ->status & _RESIDENT) + RETURN(E_CONNECTED); + + if (typ->status & _LINKED_TYPE) + { + if (typ->left) + typ->left->ref--; + if (typ->right) + typ->right->ref--; + } + free(typ); + RETURN(E_OK); +} + +/* fld_newftyp.c ends here */ |