usr/src/lib/libsmbfs/smb/nls.c

   1 /*
   2  * Copyright (c) 2000-2001, Boris Popov
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. All advertising materials mentioning features or use of this software
  14  *    must display the following acknowledgement:
  15  *    This product includes software developed by Boris Popov.
  16  * 4. Neither the name of the author nor the names of any co-contributors
  17  *    may be used to endorse or promote products derived from this software
  18  *    without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  30  * SUCH DAMAGE.
  31  *
  32  * $Id: nls.c,v 1.10 2004/12/13 00:25:22 lindak Exp $
  33  */
  34
  35 #include <sys/types.h>
  36 #include <ctype.h>
  37 #include <errno.h>
  38 #include <stdio.h>
  39 #include <strings.h>
  40 #include <stdlib.h>
  41 #include <locale.h>
  42 #include <errno.h>
  43
  44 #include <netsmb/smb_lib.h>
  45
  46 /*
  47  * prototype iconv* functions
  48  */
  49 typedef void *iconv_t;
  50
  51 static size_t(*my_iconv)(iconv_t, const char **, size_t *, char **, size_t *);
  52
  53 uchar_t nls_lower[256];
  54 uchar_t nls_upper[256];
  55
  56 static iconv_t nls_toext, nls_toloc;
  57 static int iconv_loaded;
  58
  59 int
  60 nls_setlocale(const char *name)
  61 {
  62         int i;
  63
  64         if (setlocale(LC_CTYPE, name) == NULL) {
  65                 fprintf(stdout, dgettext(TEXT_DOMAIN,
  66                     "can't set locale '%s'\n"), name);
  67         }
  68         for (i = 0; i < 256; i++) {
  69                 nls_lower[i] = tolower(i);
  70                 nls_upper[i] = toupper(i);
  71         }
  72         return (0);
  73 }
  74
  75 /*ARGSUSED*/
  76 int
  77 nls_setrecode(const char *local, const char *external)
  78 {
  79         return (ENOENT);
  80 }
  81
  82 char *
  83 nls_str_toloc(char *dst, const char *src)
  84 {
  85         char *p = dst;
  86         size_t inlen, outlen;
  87
  88         if (!iconv_loaded)
  89                 return (strcpy(dst, src));
  90
  91         if (nls_toloc == (iconv_t)0)
  92                 return (strcpy(dst, src));
  93         inlen = outlen = strlen(src);
  94         my_iconv(nls_toloc, NULL, NULL, &p, &outlen);
  95         my_iconv(nls_toloc, &src, &inlen, &p, &outlen);
  96         *p = 0;
  97         return (dst);
  98 }
  99
 100 char *
 101 nls_str_toext(char *dst, const char *src)
 102 {
 103         char *p = dst;
 104         size_t inlen, outlen;
 105
 106         if (!iconv_loaded)
 107                 return (strcpy(dst, src));
 108
 109         if (nls_toext == (iconv_t)0)
 110                 return (strcpy(dst, src));
 111         inlen = outlen = strlen(src);
 112         my_iconv(nls_toext, NULL, NULL, &p, &outlen);
 113         my_iconv(nls_toext, &src, &inlen, &p, &outlen);
 114         *p = 0;
 115         return (dst);
 116 }
 117
 118 void *
 119 nls_mem_toloc(void *dst, const void *src, int size)
 120 {
 121         char *p = dst;
 122         const char *s = src;
 123         size_t inlen, outlen;
 124
 125         if (!iconv_loaded)
 126                 return (memcpy(dst, src, size));
 127
 128         if (size == 0)
 129                 return (NULL);
 130
 131         if (nls_toloc == (iconv_t)0)
 132                 return (memcpy(dst, src, size));
 133         inlen = outlen = size;
 134         my_iconv(nls_toloc, NULL, NULL, &p, &outlen);
 135         my_iconv(nls_toloc, &s, &inlen, &p, &outlen);
 136         return (dst);
 137 }
 138
 139 void *
 140 nls_mem_toext(void *dst, const void *src, int size)
 141 {
 142         char *p = dst;
 143         const char *s = src;
 144         size_t inlen, outlen;
 145
 146         if (size == 0)
 147                 return (NULL);
 148
 149         if (!iconv_loaded || nls_toext == (iconv_t)0)
 150                 return (memcpy(dst, src, size));
 151
 152         inlen = outlen = size;
 153         my_iconv(nls_toext, NULL, NULL, &p, &outlen);
 154         my_iconv(nls_toext, &s, &inlen, &p, &outlen);
 155         return (dst);
 156 }
 157
 158 char *
 159 nls_str_upper(char *dst, const char *src)
 160 {
 161         char *p = dst;
 162
 163         while (*src)
 164                 *dst++ = toupper(*src++);
 165         *dst = 0;
 166         return (p);
 167 }
 168
 169 char *
 170 nls_str_lower(char *dst, const char *src)
 171 {
 172         char *p = dst;
 173
 174         while (*src)
 175                 *dst++ = tolower(*src++);
 176         *dst = 0;
 177         return (p);
 178 }