locale/FreeBSD/none.c

   1 /*-
   2  * Copyright (c) 1993
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * This code is derived from software contributed to Berkeley by
   6  * Paul Borman at Krystal Technologies.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  * 3. All advertising materials mentioning features or use of this software
  17  *    must display the following acknowledgement:
  18  *      This product includes software developed by the University of
  19  *      California, Berkeley and its contributors.
  20  * 4. Neither the name of the University nor the names of its contributors
  21  *    may be used to endorse or promote products derived from this software
  22  *    without specific prior written permission.
  23  *
  24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  34  * SUCH DAMAGE.
  35  */
  36
  37 #if defined(LIBC_SCCS) && !defined(lint)
  38 static char sccsid[] = "@(#)none.c      8.1 (Berkeley) 6/4/93";
  39 #endif /* LIBC_SCCS and not lint */
  40 #include <sys/cdefs.h>
  41 __FBSDID("$FreeBSD: src/lib/libc/locale/none.c,v 1.6 2002/10/16 11:37:38 tjr Exp $");
  42
  43 #include <limits.h>
  44 #include <stddef.h>
  45 #include <stdio.h>
  46 #include <rune.h>
  47 #include <stdlib.h>
  48
  49 rune_t  _none_sgetrune(const char *, size_t, char const **);
  50 int     _none_sputrune(rune_t, char *, size_t, char **);
  51
  52 int
  53 _none_init(rl)
  54         _RuneLocale *rl;
  55 {
  56         rl->sgetrune = _none_sgetrune;
  57         rl->sputrune = _none_sputrune;
  58         _CurrentRuneLocale = rl;
  59         __mb_cur_max = 1;
  60         return(0);
  61 }
  62
  63 rune_t
  64 _none_sgetrune(string, n, result)
  65         const char *string;
  66         size_t n;
  67         char const **result;
  68 {
  69         if (n < 1) {
  70                 if (result)
  71                         *result = string;
  72                 return(_INVALID_RUNE);
  73         }
  74         if (result)
  75                 *result = string + 1;
  76         return(*string & 0xff);
  77 }
  78
  79 int
  80 _none_sputrune(c, string, n, result)
  81         rune_t c;
  82         char *string, **result;
  83         size_t n;
  84 {
  85         if (n >= 1) {
  86                 if (string) {
  87                         if (c < 0 || c > UCHAR_MAX) {
  88                                 if (result)
  89                                         *result = NULL;
  90                                 return (0);
  91                         }
  92                         *string = c;
  93                 }
  94                 if (result)
  95                         *result = string + 1;
  96         } else if (result)
  97                 *result = (char *)0;
  98         return(1);
  99 }