1/*
2 * Copyright (c) 2010 Apple Inc. All rights reserved.
3 *
4 * @APPLE_LICENSE_HEADER_START@
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 *
10 * 1.  Redistributions of source code must retain the above copyright
11 *     notice, this list of conditions and the following disclaimer.
12 * 2.  Redistributions in binary form must reproduce the above copyright
13 *     notice, this list of conditions and the following disclaimer in the
14 *     documentation and/or other materials provided with the distribution.
15 * 3.  Neither the name of Apple Inc. ("Apple") nor the names of its
16 *     contributors may be used to endorse or promote products derived from
17 *     this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
20 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
21 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
22 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
23 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
24 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
26 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 *
30 * Portions of this software have been released under the following terms:
31 *
32 * (c) Copyright 1989-1993 OPEN SOFTWARE FOUNDATION, INC.
33 * (c) Copyright 1989-1993 HEWLETT-PACKARD COMPANY
34 * (c) Copyright 1989-1993 DIGITAL EQUIPMENT CORPORATION
35 *
36 * To anyone who acknowledges that this file is provided "AS IS"
37 * without any express or implied warranty:
38 * permission to use, copy, modify, and distribute this file for any
39 * purpose is hereby granted without fee, provided that the above
40 * copyright notices and this notice appears in all source code copies,
41 * and that none of the names of Open Software Foundation, Inc., Hewlett-
42 * Packard Company or Digital Equipment Corporation be used
43 * in advertising or publicity pertaining to distribution of the software
44 * without specific, written prior permission.  Neither Open Software
45 * Foundation, Inc., Hewlett-Packard Company nor Digital
46 * Equipment Corporation makes any representations about the suitability
47 * of this software for any purpose.
48 *
49 * Copyright (c) 2007, Novell, Inc. All rights reserved.
50 * Redistribution and use in source and binary forms, with or without
51 * modification, are permitted provided that the following conditions
52 * are met:
53 *
54 * 1.  Redistributions of source code must retain the above copyright
55 *     notice, this list of conditions and the following disclaimer.
56 * 2.  Redistributions in binary form must reproduce the above copyright
57 *     notice, this list of conditions and the following disclaimer in the
58 *     documentation and/or other materials provided with the distribution.
59 * 3.  Neither the name of Novell Inc. nor the names of its contributors
60 *     may be used to endorse or promote products derived from this
61 *     this software without specific prior written permission.
62 *
63 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
64 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
65 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
66 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY
67 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
68 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
69 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
70 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
71 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
72 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
73 *
74 * @APPLE_LICENSE_HEADER_END@
75 */
76
77/*
78**  NAME
79**
80**     cs_s_conv.c
81**
82**  FACILITY:
83**
84**     Remote Procedure Call (RPC)
85**     I18N Character Set Conversion Call   (RPC)
86**
87**  ABSTRACT:
88**
89**
90*/
91#include <commonp.h>		/* include nbase.h lbase.h internally	*/
92#include <com.h>		/* definition of rpc_binding_rep_p_t	*/
93#include <dce/rpcsts.h>
94#include <codesets.h>		/* Data definitions for I18N NSI
95							sub-component   */
96#include <stdio.h>		/* definition of NULL			*/
97#include <stdlib.h>		/* definition of MB_CUR_MAX		*/
98#include <iconv.h>		/* definition of iconv routines		*/
99#include <langinfo.h>		/* definition of nl_langinfo routine	*/
100#include <string.h>		/* definition of strncpy routine	*/
101#include <errno.h>		/* definition of error numbers 		*/
102
103#include <codesets.h>
104#include <cs_s.h>		/* Private defs for code set interoperability */
105
106
107void stub_conversion
108(
109	rpc_binding_handle_t	h,
110	boolean32		server_side,
111	unsigned32		from_tag,
112	unsigned32		to_tag,
113	byte_t			*conv_ldata,
114	unsigned32		conv_l_data_len,
115	byte_t			*conv_wdata,
116	unsigned32		*conv_p_w_data_len,
117	error_status_t		*status
118)
119{
120	iconv_t			cd;
121	byte_t			*ldata = conv_ldata;
122	byte_t			*wdata = conv_wdata;
123	int			size;
124	int			inbytesleft;
125	int			outbytesleft;
126	char			*iconv_from_cd;
127	char			*iconv_to_cd;
128	int			i_ret;
129	int			init_len;
130
131	dce_cs_rgy_to_loc (
132		from_tag,
133		(idl_char **)&iconv_from_cd,
134		NULL,
135		NULL,
136		status );
137
138	if (*status != dce_cs_c_ok)
139		return;
140
141	dce_cs_rgy_to_loc (
142		to_tag,
143		(idl_char **)&iconv_to_cd,
144		NULL,
145		NULL,
146		status );
147
148	if (*status != dce_cs_c_ok)
149		return;
150
151	if ((cd = iconv_open(iconv_to_cd, iconv_from_cd)) == (iconv_t)-1)
152	{
153		*status = rpc_s_ss_incompatible_codesets;
154		return;
155	}
156
157	/* Set the number of bytes left in input buffer */
158	init_len = strlen((char *)ldata);
159	inbytesleft = init_len;
160	outbytesleft = (int)conv_l_data_len * sizeof(unsigned_char_t);
161
162	i_ret = iconv(cd, (char **)&ldata, &inbytesleft, (char **)&wdata, &outbytesleft);
163
164	if (i_ret)	/* Iconv returns zero when it succeed */
165	{
166		if (errno == EILSEQ)
167			*status = rpc_s_ss_invalid_char_input;
168		else if (errno = E2BIG)
169			*status = rpc_s_ss_short_conv_buffer;
170		else if (errno = EINVAL)
171			*status = rpc_s_ss_invalid_char_input;
172		i_ret = iconv_close(cd);
173		return;
174	}
175	*wdata = '\0';	/* Guard against a stale data */
176
177	if ((i_ret = iconv_close(cd)) == -1)
178	{
179		*status = rpc_s_ss_iconv_error;
180		return;
181	}
182
183	if (conv_p_w_data_len != NULL)
184	{
185		*conv_p_w_data_len = strlen((char *)conv_wdata);
186	}
187
188	*status = rpc_s_ok;
189	return;
190}
191