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/* $OpenBSD: fty_ipv4.c,v 1.7 2015/01/23 22:48:51 krw Exp $ */ |
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/**************************************************************************** |
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* Copyright (c) 1998-2004,2006 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 1.7 2015/01/23 22:48:51 krw 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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| |
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| Description : Validate buffer content to be a valid IP number (Ver. 4) |
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| |
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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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| |
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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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Check_IPV4_Field, |
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Check_IPV4_Character, |
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NULL, |
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NULL |
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}; |
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NCURSES_EXPORT_VAR(FIELDTYPE*) TYPE_IPV4 = &typeIPV4; |
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/* fty_ipv4.c ends here */ |