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
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17 *     this software without specific prior written permission.
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21 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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23 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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30 * Portions of this software have been released under the following terms:
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32 * (c) Copyright 1989-1993 OPEN SOFTWARE FOUNDATION, INC.
33 * (c) Copyright 1989-1993 HEWLETT-PACKARD COMPANY
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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#else
120(h, server_side, to_conversion, from_tag, to_tag, conv_ldata, conv_l_data_len,
121                conv_wdata, conv_p_w_data_len, status)
122	rpc_binding_handle_t	h;
123	boolean32		server_side;
124	unsigned32		from_tag;
125	unsigned32		to_tag;
126	byte_t			*conv_ldata;
127	unsigned32		conv_l_data_len;
128	byte_t			*conv_wdata;
129	unsigned32		*conv_p_w_data_len;
130	error_status_t		*status;
131#endif
132{
133	iconv_t			cd;
134	byte_t			*ldata = conv_ldata;
135	byte_t			*wdata = conv_wdata;
136	int			size;
137	int			inbytesleft;
138	int			outbytesleft;
139	char			*iconv_from_cd;
140	char			*iconv_to_cd;
141	int			i_ret;
142	int			init_len;
143
144	dce_cs_rgy_to_loc (
145		from_tag,
146		(idl_char **)&iconv_from_cd,
147		NULL,
148		NULL,
149		status );
150
151	if (*status != dce_cs_c_ok)
152		return;
153
154	dce_cs_rgy_to_loc (
155		to_tag,
156		(idl_char **)&iconv_to_cd,
157		NULL,
158		NULL,
159		status );
160
161	if (*status != dce_cs_c_ok)
162		return;
163
164	if ((cd = iconv_open(iconv_to_cd, iconv_from_cd)) == (iconv_t)-1)
165	{
166		*status = rpc_s_ss_incompatible_codesets;
167		return;
168	}
169
170	/* Set the number of bytes left in input buffer */
171	init_len = strlen((char *)ldata);
172	inbytesleft = init_len;
173	outbytesleft = (int)conv_l_data_len * sizeof(unsigned_char_t);
174
175	i_ret = iconv(cd, (char **)&ldata, &inbytesleft, (char **)&wdata, &outbytesleft);
176
177	if (i_ret)	/* Iconv returns zero when it succeed */
178	{
179		if (errno == EILSEQ)
180			*status = rpc_s_ss_invalid_char_input;
181		else if (errno = E2BIG)
182			*status = rpc_s_ss_short_conv_buffer;
183		else if (errno = EINVAL)
184			*status = rpc_s_ss_invalid_char_input;
185		i_ret = iconv_close(cd);
186		return;
187	}
188	*wdata = '\0';	/* Guard against a stale data */
189
190	if ((i_ret = iconv_close(cd)) == -1)
191	{
192		*status = rpc_s_ss_iconv_error;
193		return;
194	}
195
196	if (conv_p_w_data_len != NULL)
197	{
198		*conv_p_w_data_len = strlen((char *)conv_wdata);
199	}
200
201	*status = rpc_s_ok;
202	return;
203}
204