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
31void *
32_icv_open()
33{
34	return ((void *) MAGIC_NUMBER);
35}
36
37
38void
39_icv_close(int *cd)
40{
41	if (! cd || cd != (int *)MAGIC_NUMBER)
42		errno = EBADF;
43}
44
45
46size_t
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