IABSD.fr/src/lib/libform/fty_ipv4.c

Branch : - branch - master - tag -

• Show log

  Commit

• Author : krw
  Date : 2015-01-23 22:48:51
  Hash : 5e231b3a
  Message : More missing $OpenBSD$. ok nicm@

• lib/libform/fty_ipv4.c

• /*	$OpenBSD: fty_ipv4.c,v 1.7 2015/01/23 22:48:51 krw Exp $	*/
  /****************************************************************************
   * 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 1.7 2015/01/23 22:48:51 krw 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 */