xref: /titanic_41/usr/src/lib/libsmbfs/smb/nls.c (revision 613a2f6ba31e891e3d947a356daf5e563d43c1ce)
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
nls_setlocale(const char * name)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
nls_setrecode(const char * local,const char * external)77 nls_setrecode(const char *local, const char *external)
78 {
79 	return (ENOENT);
80 }
81 
82 char *
nls_str_toloc(char * dst,const char * src)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 *
nls_str_toext(char * dst,const char * src)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 *
nls_mem_toloc(void * dst,const void * src,int size)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 *
nls_mem_toext(void * dst,const void * src,int size)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 *
nls_str_upper(char * dst,const char * src)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 *
nls_str_lower(char * dst,const char * src)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 }
179