1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21 /*
22 * Copyright 2010 Sun Microsystems, Inc. All rights reserved.
23 * Use is subject to license terms.
24 */
25
26 #include <stdlib.h>
27 #include <errno.h>
28 #include "euro.h"
29
30
31 void *
_icv_open()32 _icv_open()
33 {
34 return ((void *) MAGIC_NUMBER);
35 }
36
37
38 void
_icv_close(int * cd)39 _icv_close(int *cd)
40 {
41 if (! cd || cd != (int *)MAGIC_NUMBER)
42 errno = EBADF;
43 }
44
45
46 size_t
_icv_iconv(int * cd,char ** inbuf,size_t * inbytesleft,char ** outbuf,size_t * outbytesleft)47 _icv_iconv(int *cd, char **inbuf, size_t *inbytesleft,
48 char **outbuf, size_t *outbytesleft)
49 {
50 size_t ret_val;
51 unsigned char c;
52 unsigned char *ib;
53 unsigned char *ob;
54 unsigned char *ibtail;
55 unsigned char *obtail;
56
57 if (cd != (int *)MAGIC_NUMBER) {
58 errno = EBADF;
59 return ((size_t)-1);
60 }
61
62 if (!inbuf || !(*inbuf))
63 return ((size_t)0);
64
65 ret_val = 0;
66 ib = (unsigned char *)*inbuf;
67 ob = (unsigned char *)*outbuf;
68 ibtail = ib + *inbytesleft;
69 obtail = ob + *outbytesleft;
70
71 while (ib < ibtail) {
72 c = *ib;
73
74 if (tbl[c].sz == ICV_TYPE_ILLEGAL_CHAR) {
75 errno = EILSEQ;
76 ret_val = (size_t)-1;
77 break;
78 }
79
80 if (obtail <= ob) {
81 errno = E2BIG;
82 ret_val = (size_t)-1;
83 break;
84 }
85
86 *ob++ = tbl[c].ch;
87 ib++;
88 }
89
90 *inbuf = (char *)ib;
91 *inbytesleft = ibtail - ib;
92 *outbuf = (char *)ob;
93 *outbytesleft = obtail - ob;
94
95 return (ret_val);
96 }
97