1*16d86563SAlexander Pyhalov /*
2*16d86563SAlexander Pyhalov * CDDL HEADER START
3*16d86563SAlexander Pyhalov *
4*16d86563SAlexander Pyhalov * The contents of this file are subject to the terms of the
5*16d86563SAlexander Pyhalov * Common Development and Distribution License (the "License").
6*16d86563SAlexander Pyhalov * You may not use this file except in compliance with the License.
7*16d86563SAlexander Pyhalov *
8*16d86563SAlexander Pyhalov * You can obtain a copy of the license at src/OPENSOLARIS.LICENSE
9*16d86563SAlexander Pyhalov * or http://www.opensolaris.org/os/licensing.
10*16d86563SAlexander Pyhalov * See the License for the specific language governing permissions
11*16d86563SAlexander Pyhalov * and limitations under the License.
12*16d86563SAlexander Pyhalov *
13*16d86563SAlexander Pyhalov * When distributing Covered Code, include this CDDL HEADER in each
14*16d86563SAlexander Pyhalov * file and include the License file at src/OPENSOLARIS.LICENSE.
15*16d86563SAlexander Pyhalov * If applicable, add the following below this CDDL HEADER, with the
16*16d86563SAlexander Pyhalov * fields enclosed by brackets "[]" replaced with your own identifying
17*16d86563SAlexander Pyhalov * information: Portions Copyright [yyyy] [name of copyright owner]
18*16d86563SAlexander Pyhalov *
19*16d86563SAlexander Pyhalov * CDDL HEADER END
20*16d86563SAlexander Pyhalov */
21*16d86563SAlexander Pyhalov /*
22*16d86563SAlexander Pyhalov * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
23*16d86563SAlexander Pyhalov * Use is subject to license terms.
24*16d86563SAlexander Pyhalov *
25*16d86563SAlexander Pyhalov * This program assumes that all single byte coded characters will be either
26*16d86563SAlexander Pyhalov * map to UTF-8 coded characters or illegal characters. Thus no replacement is
27*16d86563SAlexander Pyhalov * assumed at the moment.
28*16d86563SAlexander Pyhalov *
29*16d86563SAlexander Pyhalov * This particular file is to cover conversions from various single byte
30*16d86563SAlexander Pyhalov * codesets to UTF-8.
31*16d86563SAlexander Pyhalov */
32*16d86563SAlexander Pyhalov
33*16d86563SAlexander Pyhalov
34*16d86563SAlexander Pyhalov #include <stdlib.h>
35*16d86563SAlexander Pyhalov #include <errno.h>
36*16d86563SAlexander Pyhalov #include "sb_to_utf8.h"
37*16d86563SAlexander Pyhalov
38*16d86563SAlexander Pyhalov
39*16d86563SAlexander Pyhalov void *
_icv_open()40*16d86563SAlexander Pyhalov _icv_open()
41*16d86563SAlexander Pyhalov {
42*16d86563SAlexander Pyhalov return((void *)MAGIC_NUMBER);
43*16d86563SAlexander Pyhalov }
44*16d86563SAlexander Pyhalov
45*16d86563SAlexander Pyhalov
46*16d86563SAlexander Pyhalov void
_icv_close(int * cd)47*16d86563SAlexander Pyhalov _icv_close(int *cd)
48*16d86563SAlexander Pyhalov {
49*16d86563SAlexander Pyhalov if (! cd || cd != (int *)MAGIC_NUMBER)
50*16d86563SAlexander Pyhalov errno = EBADF;
51*16d86563SAlexander Pyhalov }
52*16d86563SAlexander Pyhalov
53*16d86563SAlexander Pyhalov
54*16d86563SAlexander Pyhalov size_t
_icv_iconv(int * cd,char ** inbuf,size_t * inbufleft,char ** outbuf,size_t * outbufleft)55*16d86563SAlexander Pyhalov _icv_iconv(int *cd, char **inbuf, size_t *inbufleft, char **outbuf,
56*16d86563SAlexander Pyhalov size_t *outbufleft)
57*16d86563SAlexander Pyhalov {
58*16d86563SAlexander Pyhalov size_t ret_val = 0;
59*16d86563SAlexander Pyhalov unsigned char *ib;
60*16d86563SAlexander Pyhalov unsigned char *ob;
61*16d86563SAlexander Pyhalov unsigned char *ibtail;
62*16d86563SAlexander Pyhalov unsigned char *obtail;
63*16d86563SAlexander Pyhalov
64*16d86563SAlexander Pyhalov if (cd != (int *)MAGIC_NUMBER) {
65*16d86563SAlexander Pyhalov errno = EBADF;
66*16d86563SAlexander Pyhalov return((size_t)-1);
67*16d86563SAlexander Pyhalov }
68*16d86563SAlexander Pyhalov
69*16d86563SAlexander Pyhalov if (!inbuf || !(*inbuf))
70*16d86563SAlexander Pyhalov return((size_t)0);
71*16d86563SAlexander Pyhalov
72*16d86563SAlexander Pyhalov ib = (unsigned char *)*inbuf;
73*16d86563SAlexander Pyhalov ob = (unsigned char *)*outbuf;
74*16d86563SAlexander Pyhalov ibtail = ib + *inbufleft;
75*16d86563SAlexander Pyhalov obtail = ob + *outbufleft;
76*16d86563SAlexander Pyhalov
77*16d86563SAlexander Pyhalov while (ib < ibtail) {
78*16d86563SAlexander Pyhalov register int i;
79*16d86563SAlexander Pyhalov unsigned long u8;
80*16d86563SAlexander Pyhalov signed char sz;
81*16d86563SAlexander Pyhalov
82*16d86563SAlexander Pyhalov u8 = (unsigned long)sb_u8_tbl[*ib].u8;
83*16d86563SAlexander Pyhalov sz = sb_u8_tbl[*ib].size;
84*16d86563SAlexander Pyhalov
85*16d86563SAlexander Pyhalov if (sz == ICV_TYPE_ILLEGAL_CHAR) {
86*16d86563SAlexander Pyhalov errno = EILSEQ;
87*16d86563SAlexander Pyhalov ret_val = (size_t)-1;
88*16d86563SAlexander Pyhalov break;
89*16d86563SAlexander Pyhalov }
90*16d86563SAlexander Pyhalov
91*16d86563SAlexander Pyhalov if ((u8 & ICV_UTF8_REPRESENTATION_ffff_mask) ==
92*16d86563SAlexander Pyhalov ICV_UTF8_REPRESENTATION_fffe ||
93*16d86563SAlexander Pyhalov (u8 & ICV_UTF8_REPRESENTATION_ffff_mask) ==
94*16d86563SAlexander Pyhalov ICV_UTF8_REPRESENTATION_ffff ||
95*16d86563SAlexander Pyhalov u8 > ICV_UTF8_REPRESENTATION_10fffd ||
96*16d86563SAlexander Pyhalov (u8 >= ICV_UTF8_REPRESENTATION_d800 &&
97*16d86563SAlexander Pyhalov u8 <= ICV_UTF8_REPRESENTATION_dfff) ||
98*16d86563SAlexander Pyhalov (u8 >= ICV_UTF8_REPRESENTATION_fdd0 &&
99*16d86563SAlexander Pyhalov u8 <= ICV_UTF8_REPRESENTATION_fdef)) {
100*16d86563SAlexander Pyhalov /* This should not happen, if sb_u8_tbl is right. */
101*16d86563SAlexander Pyhalov errno = EILSEQ;
102*16d86563SAlexander Pyhalov ret_val = (size_t)-1;
103*16d86563SAlexander Pyhalov break;
104*16d86563SAlexander Pyhalov }
105*16d86563SAlexander Pyhalov
106*16d86563SAlexander Pyhalov if ((obtail - ob) < sz) {
107*16d86563SAlexander Pyhalov errno = E2BIG;
108*16d86563SAlexander Pyhalov ret_val = (size_t)-1;
109*16d86563SAlexander Pyhalov break;
110*16d86563SAlexander Pyhalov }
111*16d86563SAlexander Pyhalov
112*16d86563SAlexander Pyhalov for (i = 1; i <= sz; i++)
113*16d86563SAlexander Pyhalov *ob++ = (unsigned int)((u8 >> ((sz - i) * 8)) & 0xff);
114*16d86563SAlexander Pyhalov ib++;
115*16d86563SAlexander Pyhalov }
116*16d86563SAlexander Pyhalov
117*16d86563SAlexander Pyhalov *inbuf = (char *)ib;
118*16d86563SAlexander Pyhalov *inbufleft = ibtail - ib;
119*16d86563SAlexander Pyhalov *outbuf = (char *)ob;
120*16d86563SAlexander Pyhalov *outbufleft = obtail - ob;
121*16d86563SAlexander Pyhalov
122*16d86563SAlexander Pyhalov return(ret_val);
123*16d86563SAlexander Pyhalov }
124