lib/libc/citrus/modules/citrus_iconv_none.c

   1 /*      $NetBSD: citrus_iconv_none.c,v 1.1 2003/06/25 09:51:43 tshiozak Exp $   */
   2
   3 /*-
   4  * Copyright (c)2003 Citrus Project,
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  26  * SUCH DAMAGE.
  27  */
  28
  29 #include <sys/cdefs.h>
  30 #if defined(LIBC_SCCS) && !defined(lint)
  31 __RCSID("$NetBSD: citrus_iconv_none.c,v 1.1 2003/06/25 09:51:43 tshiozak Exp $");
  32 #endif /* LIBC_SCCS and not lint */
  33
  34 #include <assert.h>
  35 #include <errno.h>
  36 #include <stdlib.h>
  37 #include <string.h>
  38 #include <sys/queue.h>
  39
  40 #include "citrus_types.h"
  41 #include "citrus_module.h"
  42 #include "citrus_hash.h"
  43 #include "citrus_iconv.h"
  44 #include "citrus_iconv_none.h"
  45
  46 /* ---------------------------------------------------------------------- */
  47
  48 _CITRUS_ICONV_DECLS(iconv_none);
  49 _CITRUS_ICONV_DEF_OPS(iconv_none);
  50
  51
  52 /* ---------------------------------------------------------------------- */
  53
  54 int
  55 _citrus_iconv_none_iconv_getops(struct _citrus_iconv_ops *ops, size_t lenops,
  56                                 uint32_t expected_version)
  57 {
  58         if (expected_version<_CITRUS_ICONV_ABI_VERSION || lenops<sizeof(*ops))
  59                 return (EINVAL);
  60
  61         memcpy(ops, &_citrus_iconv_none_iconv_ops,
  62                sizeof(_citrus_iconv_none_iconv_ops));
  63
  64         return (0);
  65 }
  66
  67 static int
  68 /*ARGSUSED*/
  69 _citrus_iconv_none_iconv_init_shared(
  70         struct _citrus_iconv_shared * __restrict ci,
  71         const char * __restrict curdir,
  72         const char * __restrict in, const char * __restrict out,
  73         const void * __restrict var, size_t lenvar)
  74 {
  75         ci->ci_closure = NULL;
  76         return 0;
  77 }
  78
  79 static void
  80 /*ARGSUSED*/
  81 _citrus_iconv_none_iconv_uninit_shared(struct _citrus_iconv_shared *ci)
  82 {
  83 }
  84
  85 static int
  86 /*ARGSUSED*/
  87 _citrus_iconv_none_iconv_init_context(struct _citrus_iconv *cv)
  88 {
  89         cv->cv_closure = NULL;
  90 }
  91
  92 static void
  93 /*ARGSUSED*/
  94 _citrus_iconv_none_iconv_uninit_context(struct _citrus_iconv *cv)
  95 {
  96 }
  97
  98 static int
  99 /*ARGSUSED*/
 100 _citrus_iconv_none_iconv_convert(struct _citrus_iconv * __restrict ci,
 101                                  const char * __restrict * __restrict in,
 102                                  size_t * __restrict inbytes,
 103                                  char * __restrict * __restrict out,
 104                                  size_t * __restrict outbytes,
 105                                  u_int32_t flags, size_t * __restrict invalids)
 106 {
 107         int e2big;
 108         size_t len;
 109
 110         len = *inbytes;
 111         e2big = 0;
 112         if (*outbytes<len) {
 113                 e2big = 1;
 114                 len = *outbytes;
 115         }
 116         memcpy(*out, *in, len);
 117         in += len;
 118         *inbytes -= len;
 119         out+=len;
 120         *outbytes -= len;
 121         *invalids = 0;
 122         if (e2big) {
 123                 return (E2BIG);
 124         }
 125
 126         return (0);
 127 }