121 lines
4.9 KiB
C
121 lines
4.9 KiB
C
/****************************************************************************
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* Copyright (c) 1998-2006,2009 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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* *
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* Author : Per Foreby, perf@efd.lth.se *
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* *
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***************************************************************************/
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#include "form.priv.h"
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MODULE_ID("$Id: fty_ipv4.c,v 1.10 2009/11/07 20:17:58 tom Exp $")
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/*---------------------------------------------------------------------------
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| Facility : libnform
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| Function : static bool Check_IPV4_Field(
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| FIELD * field,
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| const void * argp)
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| Description : Validate buffer content to be a valid IP number (Ver. 4)
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| Return Values : TRUE - field is valid
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| FALSE - field is invalid
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+--------------------------------------------------------------------------*/
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static bool
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Check_IPV4_Field(FIELD *field, const void *argp GCC_UNUSED)
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{
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char *bp = field_buffer(field, 0);
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int num = 0, len;
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unsigned int d1, d2, d3, d4;
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if (isdigit(UChar(*bp))) /* Must start with digit */
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{
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num = sscanf(bp, "%u.%u.%u.%u%n", &d1, &d2, &d3, &d4, &len);
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if (num == 4)
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{
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bp += len; /* Make bp point to what sscanf() left */
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while (isspace(UChar(*bp)))
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bp++; /* Allow trailing whitespace */
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}
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}
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return ((num != 4 || *bp || d1 > 255 || d2 > 255
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|| d3 > 255 || d4 > 255) ? FALSE : TRUE);
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}
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/*---------------------------------------------------------------------------
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| Facility : libnform
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| Function : static bool Check_IPV4_Character(
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| int c,
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| const void *argp )
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| Description : Check a character for unsigned type or period.
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| Return Values : TRUE - character is valid
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| FALSE - character is invalid
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+--------------------------------------------------------------------------*/
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static bool
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Check_IPV4_Character(int c, const void *argp GCC_UNUSED)
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{
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return ((isdigit(UChar(c)) || (c == '.')) ? TRUE : FALSE);
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}
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static FIELDTYPE typeIPV4 =
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{
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_RESIDENT,
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1, /* this is mutable, so we can't be const */
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(FIELDTYPE *)0,
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(FIELDTYPE *)0,
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NULL,
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NULL,
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NULL,
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INIT_FT_FUNC(Check_IPV4_Field),
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INIT_FT_FUNC(Check_IPV4_Character),
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INIT_FT_FUNC(NULL),
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INIT_FT_FUNC(NULL),
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#if NCURSES_INTEROP_FUNCS
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NULL
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#endif
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};
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NCURSES_EXPORT_VAR(FIELDTYPE*) TYPE_IPV4 = &typeIPV4;
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#if NCURSES_INTEROP_FUNCS
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/* The next routines are to simplify the use of ncurses from
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programming languages with restictions on interop with C level
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constructs (e.g. variable access or va_list + ellipsis constructs)
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*/
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NCURSES_EXPORT(FIELDTYPE *)
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_nc_TYPE_IPV4(void)
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{
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return TYPE_IPV4;
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}
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#endif
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/* fty_ipv4.c ends here */
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