/**************************************************************************** * Copyright (c) 1998-2004,2006 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 : Per Foreby, perf@efd.lth.se * * * ***************************************************************************/ #include "form.priv.h" MODULE_ID("$Id: fty_ipv4.c,v 1.8 2006/12/02 19:33:02 tom Exp $") /*--------------------------------------------------------------------------- | Facility : libnform | Function : static bool Check_IPV4_Field( | FIELD * field, | const void * argp) | | Description : Validate buffer content to be a valid IP number (Ver. 4) | | Return Values : TRUE - field is valid | FALSE - field is invalid +--------------------------------------------------------------------------*/ static bool Check_IPV4_Field(FIELD *field, const void *argp GCC_UNUSED) { char *bp = field_buffer(field, 0); int num = 0, len; unsigned int d1, d2, d3, d4; if (isdigit(UChar(*bp))) /* Must start with digit */ { num = sscanf(bp, "%u.%u.%u.%u%n", &d1, &d2, &d3, &d4, &len); if (num == 4) { bp += len; /* Make bp point to what sscanf() left */ while (isspace(UChar(*bp))) bp++; /* Allow trailing whitespace */ } } return ((num != 4 || *bp || d1 > 255 || d2 > 255 || d3 > 255 || d4 > 255) ? FALSE : TRUE); } /*--------------------------------------------------------------------------- | Facility : libnform | Function : static bool Check_IPV4_Character( | int c, | const void *argp ) | | Description : Check a character for unsigned type or period. | | Return Values : TRUE - character is valid | FALSE - character is invalid +--------------------------------------------------------------------------*/ static bool Check_IPV4_Character(int c, const void *argp GCC_UNUSED) { return ((isdigit(UChar(c)) || (c == '.')) ? TRUE : FALSE); } static FIELDTYPE typeIPV4 = { _RESIDENT, 1, /* this is mutable, so we can't be const */ (FIELDTYPE *)0, (FIELDTYPE *)0, NULL, NULL, NULL, Check_IPV4_Field, Check_IPV4_Character, NULL, NULL }; NCURSES_EXPORT_VAR(FIELDTYPE*) TYPE_IPV4 = &typeIPV4; /* fty_ipv4.c ends here */