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citrus_iconv_none.c revision 1.1 
      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 "citrus_types.h"
     39 #include "citrus_module.h"
     40 #include "citrus_iconv.h"
     41 #include "citrus_iconv_none.h"
     42 
     43 /* ---------------------------------------------------------------------- */
     44 
     45 _CITRUS_ICONV_DECLS(iconv_none);
     46 _CITRUS_ICONV_DEF_OPS(iconv_none);
     47 
     48 
     49 /* ---------------------------------------------------------------------- */
     50 
     51 int
     52 _citrus_iconv_none_iconv_getops(struct _citrus_iconv_ops *ops, size_t lenops,
     53 				uint32_t expected_version)
     54 {
     55 	if (expected_version<_CITRUS_ICONV_ABI_VERSION || lenops<sizeof(*ops))
     56 		return (EINVAL);
     57 
     58 	memcpy(ops, &_citrus_iconv_none_iconv_ops,
     59 	       sizeof(_citrus_iconv_none_iconv_ops));
     60 
     61 	return (0);
     62 }
     63 
     64 static int
     65 /*ARGSUSED*/
     66 _citrus_iconv_none_iconv_init(struct _citrus_iconv * __restrict ci,
     67 			      const char * __restrict curdir,
     68 			      const char * __restrict in,
     69 			      const char * __restrict out,
     70 			      const void * __restrict var, size_t lenvar)
     71 {
     72 	ci->ci_closure = NULL;
     73 	return (0);
     74 }
     75 
     76 static void
     77 /*ARGSUSED*/
     78 _citrus_iconv_none_iconv_uninit(struct _citrus_iconv * __restrict ci)
     79 {
     80 }
     81 
     82 static int
     83 /*ARGSUSED*/
     84 _citrus_iconv_none_iconv_convert(struct _citrus_iconv * __restrict ci,
     85 				 const char * __restrict * __restrict in,
     86 				 size_t * __restrict inbytes,
     87 				 char * __restrict * __restrict out,
     88 				 size_t * __restrict outbytes,
     89 				 u_int32_t flags, size_t * __restrict invalids)
     90 {
     91 	int e2big;
     92 	size_t len;
     93 
     94 	len = *inbytes;
     95 	e2big = 0;
     96 	if (*outbytes<len) {
     97 		e2big = 1;
     98 		len = *outbytes;
     99 	}
    100 	memcpy(*out, *in, len);
    101 	in += len;
    102 	*inbytes -= len;
    103 	out+=len;
    104 	*outbytes -= len;
    105 	*invalids = 0;
    106 	if (e2big) {
    107 		return (E2BIG);
    108 	}
    109 
    110 	return (0);
    111 }
    112